Source: https://patents.google.com/patent/WO2010098412A1/en
Timestamp: 2020-07-15 06:14:49
Document Index: 391761933

Matched Legal Cases: ['art, 8', 'art, 9', 'art 21', 'art 21', 'art 8', 'art 38', 'art 36', 'art 36', 'art 38', 'art 36', 'art 30', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 31', 'art 36', 'art 31', 'art 31', 'art 31', 'art 36', 'art 36', 'art 36', 'art 27', 'art 27', 'art 31', 'art 36', 'art 31', 'art 36', 'art 36', 'art 36', 'art 36', 'art 31', 'art 36', 'art 36', 'art 21', 'art 37', 'art 38', 'art 27', 'art 28', 'art 31', 'art 21', 'art 31', 'art 36']

WO2010098412A1 - Power supply system for moving body - Google Patents
Power supply system for moving body Download PDF
WO2010098412A1
WO2010098412A1 PCT/JP2010/053011 JP2010053011W WO2010098412A1 WO 2010098412 A1 WO2010098412 A1 WO 2010098412A1 JP 2010053011 W JP2010053011 W JP 2010053011W WO 2010098412 A1 WO2010098412 A1 WO 2010098412A1
PCT/JP2010/053011
順 植村
正明 長瀬
2009-02-25 Priority to JP2009-042427 priority Critical
2009-02-25 Priority to JP2009042427 priority
2010-02-25 Application filed by マスプロ電工株式会社 filed Critical マスプロ電工株式会社
2010-09-02 Publication of WO2010098412A1 publication Critical patent/WO2010098412A1/en
A power supply system for a moving body is provided with a separator material that is formed into a tubular shape using an insulator to enclose a space formed by the projected planes of a power supply unit and a power reception unit when the two are positioned face to face, and that is formed so that the height of the tube in the direction of the center axis is a slightly smaller dimension than the gap between a mounting platform and the bottom surface of the moving body. Thus it is possible to prevent foreign matter from entering into the space formed between the power supply unit and the power reception unit.
Mobile power supply system
The present invention relates to a power supply system that performs non-contact power supply to a moving body.
In general, an electric vehicle as a representative example of a moving body is configured such that when charging a battery provided in the electric vehicle, the connector of the charger cable is connected to the electric vehicle in a facility provided with the charger. It was necessary to insert the battery into the connector provided for charging, and the trouble for that was troublesome.
Therefore, conventionally, a primary coil is provided on a vehicle base that can park an automobile, and a secondary coil that receives power from the primary coil by electromagnetic induction on the automobile side, and a charging means that charges the battery with the received power from the secondary coil. And a non-contact type power supply system configured to automatically start charging the battery when the automobile is parked on the vehicle stand has been proposed (see, for example, Patent Document 1). .
According to this proposed power supply system, for example, if a primary coil for power feeding is installed in a parking space of a vehicle, such as parking, and the vehicle is parked in this parking space, it is mounted on the vehicle. Since the battery can be charged automatically, there is no need for preparation for the charging, and the convenience is good.
JP-A-8-126120
However, the proposed power supply system is constructed in a place that is not popular at all times, such as parking, for example, and charging is performed automatically and there is no need for a person to constantly monitor. Such a problem can be considered.
In other words, in the proposed power supply system, there is a space between the road surface of the parking etc. where the primary coil is provided and the bottom surface of the automobile where the secondary coil is provided, and there is nothing to block the space, so power supply starts. There is a possibility that foreign objects such as small animals may enter the space at times or during power feeding.
In addition, even if a foreign object enters the space in this way, power supply continues, causing problems such as a decrease in power supply efficiency or a system error in severe cases, preventing stable operation of the system. Can be considered.
The present invention has been made in view of such problems, and in a power supply system that performs non-contact power supply to a moving body, between a power feeding unit including a primary coil and a power receiving unit including a secondary coil. It is an object of the present invention to allow power supply to be performed safely and efficiently without causing foreign matter to enter the generated space.
The first aspect of the present invention made to achieve such an object is as follows:
A power feeding device provided with a power feeding means that is provided on a mounting table on which the moving body can be mounted and that supplies power to the moving body mounted on the mounting table in a contactless manner;
Provided in the movable body that can be placed on the mounting table, charging means for charging the power storage means mounted on the moving body, and when the moving body is placed on the mounting table, the power supply A power receiving device comprising: a power receiving means for receiving power from the means in a non-contact manner and supplying the received power to the charging means;
In a mobile power supply system comprising:
The power supply means and the power reception means are formed in a cylindrical shape with an insulator so as to surround the space formed by the respective projection surfaces when the power supply means and the power reception means are opposed to each other, and the height in the central axis direction of the cylinder is By being formed to have a predetermined dimension slightly smaller than the interval between the mounting table and the bottom surface of the moving body, foreign matter can be prevented from entering the space between the power supply unit and the power reception unit. Blocking means,
Further, a second aspect of the present invention provides the mobile power supply system of the first aspect,
Power-receiving-side communication means for performing wireless communication with the power supply device;
When charging to the power storage means is necessary, a power receiving side control means for transmitting a charge request signal from the power receiving side communication means;
The power feeding device is:
Power supply side communication means for performing wireless communication with the power receiving device;
When the charging request signal is received by the power supply side communication means, power supply side control means for starting power supply from the power supply means to the power reception means;
Next, a third aspect of the present invention is the mobile power supply system of the second aspect,
On the power feeding device side,
Feeding-side movable means for moving the blocking means between a first position housed in the mounting table and a second position that protrudes from the mounting table and prevents foreign matter from entering the space. Is provided,
The power supply side control means moves the blocking means from the first position to the second position via the power supply side movable means when the charge request signal is received by the power supply side communication means. It is characterized by making it.
Moreover, the 4th aspect of this invention is the electric power supply system of the mobile body of a 2nd aspect,
On the power receiving device side,
The power-receiving-side movable that moves the blocking means between a first position housed in the moving body and a second position that protrudes from the moving body and prevents foreign matter from entering the space. Means are provided,
The power supply side control unit is configured to transmit a response signal corresponding to the charge request signal from the power reception side communication unit when the charge request signal is received by the power supply side communication unit.
When the response signal is received by the power receiving side communication means, the power receiving side control means moves the blocking means from the first position to the second position via the power receiving side movable means. It is characterized by that.
Still further, according to a fifth aspect of the present invention, in the power supply system for a moving body according to the third aspect, the power feeding side movable means is a first position where the blocking means and the power feeding means are stored in the mounting table. And a second position protruding from the mounting table.
According to a sixth aspect of the present invention, in the power supply system for a moving body according to the fourth aspect, the power receiving side movable means is a first position where the blocking means and the power receiving means are stored in the moving body. And a second position protruding from the moving body.
Next, a seventh aspect of the present invention is the mobile power supply system of the fifth aspect,
The power receiving device includes a received power detection unit that detects a magnitude of received power output from the power receiving unit to the charging unit,
The power receiving side control means is configured to transmit the detection result of the received power by the received power detection means in addition to the charge request signal via the power receiving side communication means,
The power feeding side movable means is configured to be able to move the blocking means and the power feeding means in a surface direction along a surface facing the power receiving means,
When the power feeding side control means starts feeding power from the power feeding means to the power receiving means, the power feeding side control means moves the blocking means and the power feeding means in the surface direction via the movable means, The position where the received power becomes maximum is detected based on the received power detection result, and the movement of the blocking means and the power feeding means is stopped at the detected position.
Further, an eighth aspect of the present invention is the mobile power supply system of the sixth aspect,
The power-receiving-side movable means is configured to be able to move the blocking means and the power receiving means in a surface direction along a surface facing the power feeding means,
The power receiving side control means moves the blocking means and the power receiving means from the first position to the second position via the power receiving side movable means, and thereafter, the power receiving side movable means via the power receiving side movable means and While moving the power receiving means in the surface direction, the position where the received power detected by the received power detecting means becomes maximum is detected, and the movement of the blocking means and the power receiving means is stopped at the detected position. It is characterized by making it.
On the other hand, a ninth aspect of the present invention provides the mobile power supply system according to any one of the second to eighth aspects,
The power receiving device is provided with a stop state detecting means for detecting a stop state of movement of the moving body,
The power reception side communication means transmits a charge request signal output from the power reception side control means when the movement stop state of the moving body is detected by the stop state detection means, and sends the charge request signal to the stop state detection means. When the stop state of the moving body is not detected, transmission of the charge request signal is stopped.
According to the power supply system of the first aspect of the present invention, the insulator is formed in a cylindrical shape so as to surround the space formed by the respective projection surfaces when the power feeding unit and the power receiving unit are arranged to face each other. In addition, there is provided blocking means formed such that the height of the cylinder in the central axis direction has a predetermined dimension slightly smaller than the interval between the mounting table and the bottom surface of the moving body.
For this reason, when power is supplied from the power supply means to the power reception means, this blocking means is arranged in the space between the power supply means and the power reception means, so that small animals such as cats and other foreign objects enter the space. Can be prevented. Therefore, according to the present invention, it is possible to prevent a reduction in power supply efficiency or a system error due to the entry of foreign matter into the space, and to operate the power supply system safely and efficiently. Is possible.
By the way, for the start of power supply from the power supply means to the power reception means, for example, an operation switch for instructing the start of power supply is provided on the mounting table side (in other words, the power supply device side). The driver may stop the moving body on the mounting table, and then operate the operation switch to start the power supply from the power supply means to the power reception means.
However, this makes it impossible to start charging the power storage means while the driver is on the moving body, which is inconvenient.
For this reason, as in the power supply system of the second aspect of the present invention, the power receiving device on the moving body side is provided with power receiving side communication means and power receiving side control means, and the power feeding device on the mounting table side is provided with power feeding side communication means. It is preferable to provide power supply side control means.
That is, in the power supply system of the second aspect of the present invention, when the power receiving device side needs to charge the power storage means, the power receiving side control means causes the power receiving side communication means to transmit a charge request signal. On the power supply device side, when the charge request signal is received by the power supply side communication unit, the power supply side control unit starts supplying power from the power supply unit to the power reception unit.
Therefore, according to the power supply system of the second aspect of the present invention, when the moving body is mounted on the mounting table and the power supply side communication unit receives the power reception request signal from the power reception side communication unit, the power reception unit receives the power reception unit. The power supply to the vehicle is automatically started, and the driver of the moving body can charge the power storage means simply by moving the moving body onto the mounting table.
In addition, the blocking means may be installed in advance on the mounting table, for example. However, when the moving body is moved onto the mounting table, the blocking means becomes an obstacle and moves the power. The usability of the supply system becomes poor.
For this reason, as in the power supply system of the third aspect of the present invention, on the side of the power feeding device, the blocking means has a first position accommodated in the mounting table, and a foreign object protruding from the mounting table and entering the space. The power supply side movable means for moving between the second position and the power supply side communication means is received, and the power supply side control means supplies power from the power supply means. When starting the operation, the blocking means may be moved from the first position to the second position via the power supply side movable means.
Further, as in the power supply system of the fourth aspect of the present invention, a blocking means is provided on the power receiving device side, the first position housed in the moving body, and a foreign object protruding from the moving body and entering the space. You may provide the power receiving side movable means to move between the 2nd positions which prevent intrusion.
In the power supply system of the fourth aspect of the present invention, when the charge request signal is received by the power supply side communication means and the power supply side control means starts the power supply from the power supply means, the charge request signal A response signal corresponding to the signal is transmitted from the power receiving side communication means. Further, when the response signal is received by the power receiving side communication means, the power receiving side control means moves the blocking means from the first position to the second position via the power receiving side movable means.
Therefore, according to the power supply system of the third or fourth aspect of the present invention, when the power supply side control means starts the power supply from the power supply means, the blocking means is automatically changed from the first position to the second position. When the moving body is moved onto the mounting table for power supply to the moving body, the blocking means is retracted to the first position so that the blocking means does not get in the way. be able to.
By the way, according to the power supply system of the first to fourth aspects of the present invention, it is possible to prevent foreign matter from entering the space between the power supply unit and the power reception unit via the blocking unit, Since the space between the power feeding means and the power receiving means cannot be narrowed, the efficiency of power supply may be reduced depending on the space.
For this reason, when supplying electric power from the power supply means to the power reception means, it is desirable to narrow these intervals. For this purpose, as in the power supply system according to the fifth aspect of the present invention, the power supply side movable means is provided. In addition to the blocking means, the power feeding means may be configured to move between the first position stored on the mounting table and the second position protruding from the mounting table.
According to this configuration, when the charge request signal is received by the power supply side communication unit, the power supply side control unit moves the blocking unit and the power supply unit from the first position via the power supply side movable unit. Since it is moved to two positions, when the power is fed from the power feeding means to the power receiving means, the power feeding means is moved to the moving body side, the interval between the power feeding means and the power receiving means is narrowed, and the power feeding efficiency can be improved. .
Further, as in the power supply system according to the sixth aspect of the present invention, the power receiving side movable means projects not only from the blocking means but also from the power receiving means to the first position housed in the moving body and from the moving body. Even if it is configured to move between the second positions, the same effect as the power supply system of the fifth aspect can be obtained.
In other words, in the power supply system of the sixth aspect of the present invention, when the power receiving side control means transmits the charge request signal, the blocking means and the power receiving means are moved from the first position via the power receiving side movable means. Since it is moved to the second position, during power feeding, the power receiving means is moved to the mounting table side, the interval between the power feeding means and the power receiving means is narrowed, and power feeding efficiency can be improved.
Next, as in the power supply system of the fifth or sixth aspect of the present invention, when supplying power from the power supply means to the power reception means, in addition to the interruption means, the power supply means or the power reception means is also moved from the first position. Even if the interval between the power feeding means and the power receiving means is narrowed by moving to the second position, the power feeding means and the power receiving means may not necessarily face each other at the optimum position where power can be supplied most efficiently. However, it is conceivable that the facing position is deviated from the optimum position due to variations in the stop position of the moving body and the installation position of the power feeding means or the power receiving means.
Therefore, in order to directly face the power feeding means and the power receiving means at the optimum position where the power feeding efficiency is maximized, the power supply system according to the fifth aspect or the sixth aspect is further changed to the power supply system according to the seventh aspect or the eighth aspect. It is better to configure as follows.
That is, in the power supply system according to the seventh aspect of the present invention, the power receiving device is provided with received power detection means for detecting the magnitude of the received power output from the power receiving means to the charging means. The means is configured to transmit the detection result of the received power by the received power detection means in addition to the charge request signal via the power receiving side communication means.
Further, the power supply side movable means provided in the power supply apparatus is configured to be able to move the blocking means and the power supply means in the surface direction along the surface facing the power reception means.
Then, when the power feeding side control means starts feeding from the power feeding means to the power receiving means, the power receiving side received by the power feeding side communication means while moving the blocking means and the power feeding means in the surface direction via the movable means. A position where the received power is maximized is detected based on the detection result of the power, and the movement of the power feeding means is stopped at the detected position.
For this reason, according to the power feeding system of the seventh aspect of the present invention, not only can the power feeding means be moved from the first position to the second position at the time of feeding to narrow the interval with the power receiving means, By moving the means along the surface facing the power receiving means, the optimum position of the power feeding means that can supply power most efficiently to the power receiving means is detected, and the power feeding means is stopped at the optimum position. be able to.
Therefore, according to the power feeding system of the seventh aspect of the present invention, the relative position between the power feeding means and the power receiving means is controlled to the optimum position where power can be supplied most efficiently, thereby further improving power feeding efficiency. be able to.
In the power supply system according to the eighth aspect of the present invention, similarly to the power supply system according to the sixth aspect, received power detection for detecting the magnitude of the received power output from the power receiving means to the charging means in the power receiving device. Means are provided.
The power receiving side movable means is configured to be able to move the blocking means and the power receiving means also in the surface direction along the surface facing the power feeding means, and the power receiving side control means via the power receiving side movable means, When the blocking means and the power receiving means are moved from the first position to the second position, then the detected power is detected by the received power detecting means while moving the blocking means and the power receiving means in the plane direction via the power receiving side movable means. The position where the received power is maximized is detected, and the movement of the blocking means and the power receiving means is stopped at the detected position.
For this reason, according to the power feeding system of the eighth aspect of the present invention, it is possible to move the blocking means and the power receiving means from the first position to the second position, thereby narrowing the interval between the power feeding means and the power receiving means. Rather, the optimum position of the power receiving means that can receive power most efficiently from the power feeding means is detected by moving the blocking means and the power receiving means along the surface facing the power feeding means. The power receiving means can be stopped at the position.
Therefore, according to the power supply system of the eighth aspect of the present invention, as in the power supply system of the seventh aspect, the relative position between the power supply unit and the power reception unit is set to the optimum position where power can be supplied most efficiently. By controlling, it is possible to further improve the power supply efficiency.
Next, in order to efficiently supply power, it is desirable to prohibit power supply when the moving body is moving.
For this reason, like the power supply system of the ninth aspect of the present invention, the power receiving device on the mobile body side is provided with a stop state detecting means for detecting the movement stop state of the mobile body, and the power receiving side communication means When the movement detection state of the moving body is detected by the state detection means, the charge request signal output from the power receiving side control means is transmitted, and the stop state of the moving body is not detected by the stop state detection means In some cases, the transmission of the charge request signal may be stopped.
In this way, only when the moving body is stopped, the power receiving side signal is transmitted from the power receiving side communication unit to the power feeding side communication unit, and the power feeding unit starts supplying power to the power receiving unit. As a result, the power supply can be carried out more efficiently. In addition, according to the power supply system of the ninth aspect of the present invention, since power is supplied from the power supply means to the power reception means only when the moving body is stopped, safety can be improved.
1 is a perspective view illustrating a schematic configuration of a power supply system according to a first embodiment. It is a block diagram showing the structure of the electric power supply system of 1st Embodiment. It is a block diagram showing the state before electric power feeding of the electric power supply system of 2nd Embodiment. It is a block diagram showing the state at the time of electric power feeding of the electric power supply system of 2nd Embodiment. It is a block diagram showing the state at the time of electric power feeding of the electric power supply system of 3rd Embodiment. It is a block diagram showing the state before the electric power feeding of the electric power supply system of 4th Embodiment. It is a block diagram showing the state at the time of electric power feeding of the electric power supply system of 4th Embodiment. It is a flowchart showing the control processing performed with the control apparatus of the power receiving side and electric power feeding side of 4th Embodiment. It is a block diagram showing the state at the time of electric power feeding of the electric power supply system of 5th Embodiment. It is a block diagram showing the state at the time of electric power feeding of the electric power supply system of 6th Embodiment. It is explanatory drawing which represents typically the motion of the electric power feeding part of 6th Embodiment. It is a flowchart showing the control processing performed with the control apparatus of the receiving side and electric power feeding side of 6th Embodiment. It is a block diagram showing the state at the time of electric power feeding of the electric power supply system of 7th Embodiment.
DESCRIPTION OF SYMBOLS 1 ... Road surface, 2 ... Vehicle, 3 ... Parking space, 5a, 5b ... Partition line, 6a, 6b ... Car stop, 7 ... Processing part, 8 ... Display part, 9 ... Secondary battery, 11 ... Isolation material, 12 ... AC outlet , 20 ... Power receiving device, 21 ... Power feeding unit, 21a ... Secondary coil, 21b ... Base, 22 ... Charging circuit, 23 ... Main battery, 24 ... Driver, 25 ... Motor, 26 ... Startup determination unit, 27a ... Communication , 27b ... transmission unit, 28a ... communication unit, 28b ... reception unit, 30 ... power feeding device, 31 ... power feeding unit, 31a ... primary coil, 31b ... base, 32 ... drive circuit, 33 ... switch, 35a ... Power supply side control device, 35b ... Power reception side control device, 36 ... Movable portion, 37a ... Communication portion, 37b ... Transmission portion, 38a ... Communication portion, 38b ... Reception portion, C ... Center point of primary coil.
As shown in FIG. 1, the power supply system of the present embodiment uses a parking space 3 for parking a car as a mounting table, and an electric vehicle 2 (hereinafter simply referred to as a vehicle) parked in the parking space 3. It is for automatically supplying electric power, and includes an electric power receiving device 20 mounted on the vehicle 2 and an electric power feeding device 30 provided in the parking space 3.
And the electric power receiving apparatus 20 is provided with the electric power receiving part 21 arrange | positioned at the bottom face of the vehicle 2, and when the electric power feeder 30 stops the vehicle 2 in the predetermined position of the parking space 3, the electric power receiving part 21 of the vehicle 2 and A power feeding unit 31 embedded in the road surface 1 of the parking space 3 is provided so as to face each other.
In addition, the parking space 3 is configured so that the driver of the vehicle can be identified by the left and right partition lines 5a and 5b formed on the road surface 1. On the road surface 1 behind the parking space 3, a car stop 6a, 6b is fixed.
Further, in the parking space 3, when the vehicle 2 is stopped on the parking space, a separating material 11 for preventing foreign matter from entering the space formed between the power receiving unit 21 and the power feeding unit 31 is provided. Is provided.
This separator 11 corresponds to the blocking means of the present invention. When the power receiving unit 21 and the power feeding unit 31 are arranged to face each other, the separator 11 is made of an insulator so as to surround the space formed by each projection surface. The four separators 11a, 11b, 11c, and 11d are formed into a rectangular frame shape (in other words, a cylindrical shape) that opens up and down.
Further, the vertical length of the separator 11 (in other words, the height of the separator 11 in the central axis direction) is a predetermined dimension that is slightly smaller than the distance between the road surface of the parking space 3 and the bottom surface of the vehicle 2. It is formed as follows.
Next, the configuration of the power receiving device 20 and the power feeding device 30 will be described with reference to FIG.
As shown in FIG. 2, the power receiving device 20 mounted on the vehicle 2 is mounted on the vehicle 2 with the power received by the power receiving unit 21 in addition to the power receiving unit 21 provided on the bottom surface of the vehicle 2. A charging circuit 22 for charging the main battery 23 is provided.
Here, the power receiving unit 21 includes a secondary coil 21a formed by winding a conductive wire made of a metal or the like, and a base 21b serving as a support member for the secondary coil 21a. Is mounted on the vehicle 2 by fixing it to the bottom surface of the vehicle 2. In addition, the base 21 is comprised with the insulating member (for example, synthetic resin).
Moreover, the main battery 23 is comprised by the lithium ion battery etc. which can be charged repeatedly, for example. The main battery 23 is for supplying electric power to a motor 25 that is a power source of the vehicle 2, and is connected to the motor 25 via a driver circuit 24 that is controlled by a motor control device (not shown). .
The charging circuit 22 converts the AC power output from the secondary coil 21a into DC, and supplies the converted AC power to the main battery 23 to charge the main battery 23, so-called AC. -Consists of a DC converter.
The main battery 23 has a built-in sensor (not shown) for detecting voltage, current, temperature, and the like. A detection signal from this sensor is input to the processing unit 7 together with a detection signal from a sensor that detects a vehicle state (such as an on / off state of a par brake shown in the figure) provided in each part of the vehicle 2 and the surrounding environment. Is done.
The processing unit 7 performs signal processing on each of the input signals and outputs the processed signal to the power receiving side control device 35b. For preset information (for example, the power capacity of the main battery 23), display data By converting the data into the data and outputting it to the display unit 8, various data are displayed on the display unit 8. In addition, the display part 8 is comprised with the liquid crystal display etc., is provided in the front of the driver's seat of the vehicle 2, and is utilized in order to alert | report various information to a driver | operator.
The detection signal indicating the on / off state of the parking brake is output from the processing unit 7 to the activation determination unit 26, and the activation determination unit 26 determines whether the parking brake is on and the vehicle is stopped. Used to do. The activation determination unit 26 corresponds to a stop state detection unit of the present invention as an example. When the stop state of the vehicle 2 is determined, the charging request signal is transmitted from the power receiving device 20 to the power feeding device 30. If the vehicle 2 is not in a stopped state, transmission of a charge request signal from the power receiving device 20 to the power feeding device 30 is prohibited.
The power receiving side control device 35b is configured by a microcomputer and executes control processing for charging the main battery 23 from the power receiving unit 21 via the charging circuit 22 based on the input data from the processing unit 7. To do.
The power receiving side control device 35b and the display unit 8 are supplied with power from the sub battery 9 mounted on the vehicle 2 so that the power receiving side control device 35b and the display unit 8 can operate even when the power supply from the main battery 23 is interrupted when the vehicle 2 is stopped. To work. The sub battery 9 is appropriately charged with regenerative electric power or the like generated when the vehicle 2 is braked.
Next, the power receiving device 20 includes a transmission unit 27b that is provided behind the vehicle 2 and performs wireless communication with the reception unit 38b and the transmission unit 37b disposed behind the parking space 3. A receiving unit 28b is provided.
The transmission unit 27b is connected to the power receiving side control device 35b via the communication unit 27a, and outputs a signal output from the power receiving side control device 35b and modulated for wireless communication by the communication unit 27a to the parking space 3. It transmits toward the receiving part 38b installed in the back.
The receiving unit 28b is connected to the power receiving side control device 35b via the communication unit 28a, receives a transmission signal from the transmitting unit 37b installed behind the parking space 3, and outputs the transmission signal to the communication unit 28a. To do. Then, the communication unit 28a demodulates the received signal from the receiving unit 28b and outputs the demodulated signal to the power receiving side control device 35b.
On the other hand, the power feeding device 30 provided on the parking space 3 side demodulates received signals from the power feeding side control device 35a and the receiving unit 38b in addition to the power feeding unit 31, the receiving unit 38b and the transmitting unit 37b described above. A communication unit 38a that inputs to the power supply side control device 35a, and a communication unit 37a that modulates transmission data output from the power supply side control device 35a into a transmission signal and outputs the transmission signal to the transmission unit 37b.
The power feeding unit 31 includes a primary coil 31a formed by winding a conducting wire made of a metal or the like, and an insulating base 31b serving as a support member for the primary coil 31a. The primary coil 31a is connected to a drive circuit 32 that receives AC power taken from a commercial power supply via the AC outlet 12 and generates a pulse signal having a predetermined cycle. For this reason, an alternating current flows through the primary coil 31a by this pulse signal, and electric power is supplied to the secondary coil 31a on the vehicle 2 side by an electromagnetic induction effect generated by the alternating current.
Further, a switch 33 is provided between the AC outlet 12 and the drive circuit 32, and the power supply side control device 35a receives the vehicle 2 in which the power receiving device 20 is mounted in the parking space 3, and receives the signal. When the charging request signal transmitted from the vehicle 2 side is received by the unit 38, the switch 33 is closed and the drive circuit 32 is operated.
In addition, the power feeding side control device 35a is configured by a microcomputer, like the power receiving side control device 35b. The AC outlet 12 is also connected to a power supply unit that generates a power supply voltage (direct current) for driving an internal circuit using AC power input through the AC outlet 12.
In the power supply system of the present embodiment configured as described above, when the vehicle 2 is parked in a predetermined place such as the parking space 3 and the power feeding unit 31 and the power receiving unit 21 are arranged to face each other, the power receiving device 20 A “predetermined procedure” to be described later is performed between the power supply device 30 and the power supply device 30 to determine whether charging is possible.
Here, if it is determined that charging is possible, electric power is supplied from the power supply unit 31 to the power reception unit 21 by causing electromagnetic induction between the power supply unit 31 and the power reception unit 21. The charging circuit 22 charges the main battery 23 with the received power.
In the present embodiment, since the isolation material 11 is provided in the parking space 3, a foreign object enters the space between the power supply unit 31 and the power reception unit 21 when power is supplied from the power supply unit 31 to the power reception unit 21. Can be prevented.
Therefore, according to the present embodiment, the foreign matter can stably operate the system without causing a decrease in power supply efficiency or a system error.
The separator 11 may not be provided on the road surface of the parking space 3 at all times, but may be provided in the vicinity of the parking space 3 and disposed on the parking space 3 during power feeding.
The difference between the second embodiment and the first embodiment lies in the configuration of the separator 11, and in the second embodiment, the separator 11 is provided on the side of the power feeding device 30, and the position thereof is different from that before feeding. It is configured so that it can be switched between when power is supplied.
That is, the power feeding device 30 includes a first position (see FIG. 3) where the separator 11 is housed inside the parking space 3, and a second position (see FIG. 4) protruding above the parking space 3. The movable part 36 for moving between is provided. In addition, this movable part 36 is corresponded to the electric power feeding side movable means of this invention as an example.
And the electric power feeding side control apparatus 35a will judge that the procedure of a "predetermined procedure" was completed, if the charge request signal is received via the power receiving part 38b, and will move the isolator 11 from a 1st position to a 2nd position. After that, by driving the switch 33 to the “closed” state, power supply from the power supply unit 31 to the power reception unit 21 is started.
Therefore, according to the power supply system of the present embodiment, when power supply from the power supply unit 31 to the power reception unit 21 is started, the separator 11 is automatically protruded on the road surface, and the power supply unit 31 and the power reception unit 21 are The space between them can be protected from the surroundings, and foreign matter can be prevented from entering the space.
Here, the “predetermined procedure” from when the charging request signal is transmitted from the power receiving device 20 to when the power supply unit 31 starts to supply power to the power receiving unit 21 will be described.
In the power supply systems of the first and second embodiments, the system is activated only when the vehicle 2 stops in a predetermined parking space 3 determined in advance. In other words, the predetermined vehicle 2 stops. Unless otherwise specified, the “predetermined procedure” for system startup is configured to be performed between the power receiving device 20 and the power feeding device 30 in order not to start the system. For this reason, the communication unit 27a and the transmission unit can transmit to the power reception device 20 from the power reception device 20 side to the power feeding device 30 so as to transmit a charge request signal indicating that charging is required. 27b.
Specifically, as a starting procedure of the “predetermined procedure”, the vehicle 2 provided with the power receiving device 20 is stopped in a predetermined parking space 3 provided with the power feeding device 30 and at least the parking brake of the vehicle 2 is applied. When the vehicle is completely stopped and in a state in which safety is ensured, the power receiving device 20 is configured to transmit a charge request signal from the power receiving device 20 side. A determination unit 26 is provided.
The activation determination unit 26 acquires data on the operation state of the parking brake via the processing unit 7 and determines whether the parking brake setting state of the vehicle 2 is “ON” (braking). If it is determined to be “ON”, the communication unit 27a is configured to output a signal corresponding thereto. Then, the signal output from the activation determination unit 26 is converted into a desired charging signal in the communication unit 27a, and the charging activation signal is transmitted from the transmission unit 27b to the power feeding device 30 side. The “predetermined procedure” for is started.
On the other hand, the power receiving device 20 determines whether or not the power capacity of the main battery 23 is greater than or equal to a predetermined value from the data obtained by the processing unit 7, and based on the determination result, the power feeding device 30 side On the other hand, a power receiving side control device 35b for outputting full charge information is provided. When the vehicle 2 is parked in the parking space, the power capacity of the main battery 23 is greater than a predetermined value, When the power capacity reaches a predetermined value in the middle, full charge information is sent as a charge completion signal from the power receiving side control device 35b to the power feeding device 30 side via the communication unit 27a and the transmission unit 27b. As a result, system termination processing is started and the system enters a standby state.
In addition, the power feeding device 30 is provided with a receiving unit 38b and a communication unit 38a for receiving a charge request signal and the like. When the vehicle 2 is stopped at a predetermined position, the power receiving unit 21 and the power feeding unit 31 are provided. In order to enclose the space between the separator 11 and the movable part 36 for moving the separator 11 is provided. And the electric power feeding side control apparatus 35a judges that the "predetermined procedure" was completed by accepting a charge request signal, and was accommodated in the electric power electric power feeding part 30 side after that (it is in a 1st position in other words). Feeding is started by causing the separator 11 to protrude upward from the road surface of the parking space 3.
As shown in FIG. 3, the separator 11 is normally stored on the road side (first position), and is shown in FIG. 4 after the “predetermined procedure” is completed. Thus, from the roller protruding toward the space, the vertical dimension of the separator 11 is slightly shorter than the distance between the road surface 3 and the bottom surface of the vehicle 2 at least when placed in the second position. What is necessary is just to be formed so that it may become a dimension.
As shown in FIGS. 3 and 4, if formed so as to be slightly longer than the distance between the road surface 3 and the bottom surface of the vehicle 2, when the separator 11 protrudes upward, By slightly leaving the side opening end portion inside the road surface 3, it is possible to enhance the blockage of the space by the separator 11.
In addition, the separator 11 has an example in which the upper and lower surfaces are opened and the outer shape is formed in a substantially quadrangular frame. However, the shape of the separator 11 is not limited to this shape. What is necessary is just to form together, for example, circular may be sufficient. Further, the upper surface may be closed while the lower surface is opened, and it may be formed in a box shape that can cover the power feeding portion 31.
The movable portion 36 is an actuator that moves the separator 11 in the vertical direction, and switches the position of the separator 11 according to a control signal output from the power supply side control device 35a according to a charge request signal. The movable part 36 of the present embodiment incorporates, for example, a limit switch, and the power supply side control device 35a uses the limit switch so that the separator 11 is in the first position and is in a state before power supply. It shows that the road surface 3 which is a predetermined position is completely stored (in the state shown in FIG. 3, the upper end surface of the separator 11 is disposed so as to be substantially flat with the road surface 1 of the parking space 3). The position of the separator 11 is detected by monitoring the limit signal and the limit signal indicating that the separator is disposed at the second position at the time of power feeding (the state where the separator 11 is raised in the state of FIG. 4). To do.
Specifically, when the power supply side control device 35a does not receive a charge request signal or when it receives a charge completion signal and determines that the power capacity of the main battery 23 is equal to or greater than a predetermined value, the power supply control device 35a By outputting a control signal for setting the standby state to the movable part 36, the separator 11 is arranged at the first position via the movable part 36. In addition, when the power supply side control device 35a receives a charge request signal, the control member 35 outputs a control signal for driving the system to the movable portion 36, so that the separator 11 is removed via the movable portion 36. It arrange | positions in a 2nd position.
In addition, when the power supply side control device 35a receives a charge request signal from the power receiving device 20 side, the power supply side control device 35a outputs a “closed” drive signal for making the circuit of the switch 33 conductive. The switch 33 receives this drive signal, closes the circuit and becomes conductive, and supplies AC power to the drive circuit 32. Then, the primary coil 31a is driven, and power feeding from the power feeding unit 31 to the power receiving unit 21 is started. In addition, the power supply side control device 35a gives an “open” drive signal for shutting off the circuit to the switch 33 while the charge request signal is not received or when the charge completion signal is received. By outputting, the switch 33 is shut off.
In other words, in the present embodiment, the power supply side control device 35a provided in the power supply device 30 performs control for moving the separator 11 from the first position to the second position through a “predetermined procedure” for receiving a charge request signal. Then, control for starting power feeding from the power feeding unit 31 to the power receiving unit 21 is performed.
In the following description, unless otherwise specified, those having the same configuration as in the second embodiment are given the same reference numerals, and detailed description thereof is omitted.
The difference between the third embodiment and the second embodiment shown in FIG. 5 is the difference in the mounting position of the movable portion 36. As shown in FIG. 5, in this embodiment, the movable portion 36 is provided on the side of the power receiving device 20 mounted on the vehicle 2. That is, in this embodiment, the movable part 36 provided in the vehicle 2 is configured to project the separating material 11 provided on the vehicle 2 side below the vehicle 2. In addition, the movable part 36 of this embodiment is corresponded to the power receiving side movable means of this invention as an example.
For this reason, the power receiving side control device 35b provided in the power receiving device 20 monitors the limit signal from the movable portion 36 in addition to the work of monitoring the power capacity of the main battery 23 as in the second embodiment. The control signal is output to the movable portion 36 and the like.
Specifically, if the activation determination unit 26 determines that the parking brake is “ON”, it outputs a signal corresponding to the communication unit 27a. Then, a charge request signal is transmitted from the communication unit 27a via the transmission unit 27b.
In the power supply device 30, when the power supply side control device 35 a receives the charge request signal, the response signal is transmitted from the transmission unit 37 by outputting a response signal to the charge request signal to the communication unit 37 a.
Since the power receiving device 20 is provided with a receiving unit 28b and a communication unit 28a for receiving the response signal, the response signal is input to the power receiving side control device 35b via these units.
Then, the power receiving side control device 35b receives this response signal, outputs a control signal to the movable portion 36, and the isolation member 11 protrudes from the bottom surface of the vehicle 2 from the first position accommodated in the vehicle 2. Move to second position.
When the power receiving side control device 35b receives the limit signal indicating that the movable portion 36 has moved the separator 11 to the second position, the power receiving side control device 35b uses the result as a drive permission signal via the communication portion 27a and the transmitting portion 27b. Then, it transmits to the power feeding apparatus 30 side.
Then, in response to the drive permission signal, the power supply side control device 35 a outputs a “closed” drive signal to the switch 33 to start power supply from the power supply unit 31 to the power reception unit 21.
That is, in the present embodiment, the separator 11 provided on the bottom surface on the vehicle 2 side is lowered, but as described above, the reception of the charge request signal is received between the power receiving device 20 and the power feeding device 30. Unless the “predetermined procedure” such as reception of a response signal is obtained, the separating member 11 does not descend. Therefore, even if the movable separating member 11 is provided on the vehicle 2 side, the automobile There will be no hindrance to safe operation of the road.
Even if the “predetermined procedure” is completed, unless the separator 11 is in the second position, the drive permission signal is not sent from the power receiving device 20 to the power feeding device 30, and the primary coil 31a is driven. Because it is not done, it can save energy.
Next, the fourth embodiment of the present invention will be described in detail with reference to FIGS. 6 and 7, and the system startup procedure in this embodiment will be described in detail with reference to FIG.
The difference between the fourth embodiment and the second embodiment is the difference in the configuration of the separator 11.
As shown in FIGS. 6 and 7, in the present embodiment, the separating material 11 is formed integrally with or connected to the power feeding unit 31, thereby switching the position where the separating material 11 is disposed. It is configured to move in conjunction with.
For this reason, unlike the second embodiment, the power feeding section 31 in the present embodiment is not supported by the road surface 3, and the primary coil 31 a is formed integrally with the base 31 b so as to be independent of the road surface 3. Yes.
That is, this embodiment is characterized in that, similarly to the separator 11 provided on the road side, the feeding portion 31 can also be switched up and down using the movable portion 36, As the power feeding unit 31 rises, the separation distance from the power receiving unit 21 is narrowed, and the coupling between the power feeding unit and the power receiving unit 21 becomes dense, so that power supply by electromagnetic induction can be performed more efficiently. In addition, the separator 11 surrounds at least the space formed between the road surface 3 and the power feeding unit 31, thereby ensuring the safety of the system during power feeding.
Specifically, when the power supply side control device 35a does not receive a charge request signal or when it receives a charge completion signal and determines that the power capacity of the main battery 23 is equal to or greater than a predetermined value, the power supply control device 35a By outputting a control signal for performing a process for setting the standby state to the movable part 36, the movable part 36 has the separator 11 and the power feeding part 31 arranged at the first position in the parking space 3. The
In addition, when the power supply side control device 35a receives the charge request signal, the movable portion 36 raises the separator 11 and the power supply portion 31 by outputting the control signal to the movable portion 36, and the second signal is supplied to the second portion. Arrange at the position.
That is, in the present embodiment, the power supply side control device 35a provided in the power supply device 30 passes through the “predetermined procedure” in which the charge request signal is received from the power reception device 20 side, and then the separator 11 and the power supply unit 31 are connected. It is configured to perform control for moving from the first position to the second position or in the opposite direction, and control for starting power supply from the power supply unit 31 to the power reception unit 21.
Here, with reference to FIG. 8, a system startup procedure in the present embodiment will be specifically described. In this figure, part (a) is a flowchart for explaining the processing of the power supply side control device 35a, and part (b) shows the procedure for driving the primary coil 31a, which is performed in accordance with the processing of the power supply side control device 35a.
First, the process of the power feeding side control device 35a will be described using the part (a) of FIG.
In the embodiment of the present invention, when the power supply side control device 35a receives a charge request signal (S10: Yes), a control signal for starting the movable portion 36 from the power supply side control device 35a to the movable portion 36. Is output (“ON” signal) (S 12), and the separator 11 and the power feeding portion 31 are arranged at the second position elevated from the road surface 1.
Further, the power supply side control device 35a monitors the arrangement state of the movable part 36 (or the separator 11 or the power supply part 31), and is movable when the separator 11 and the power supply part 31 are arranged at the second position. If the limit signal is acquired from the unit 36 (S14: Yes), the power supply unit 31 is driven by supplying the power supply unit 31 by outputting the “closed” drive signal to the switch 33 (“ON” signal) (S16). The power supply from the unit 31 to the power receiving unit 21 is started.
Then, if the power supply side control device 35a outputs the “closed” drive signal, the process proceeds to the determination of the power capacity of the main battery 23, which is the next step (S18). If the separator 11 and the power feeding unit 31 are not disposed at the “second position” (S14: No), the process returns to step (S12) and is repeated.
It should be noted that the timing for outputting the “closed” driving signal is not limited to the method of determining the limit signal by monitoring the arrangement state of the movable portion 36, that is, the separation material 11 and the power feeding portion 31 It may be configured to output with a delay only during the rise.
On the other hand, when the power supply side control device 35a has not received the charge request signal (S10: No), the power supply side control device 35a outputs a control signal for putting the system in a standby state to the movable portion 36 (" ("OFF" signal) (S20), the separator 11 and the power feeding portion 31 are disposed at the first position, which is the position before power feeding, and further, an "open" driving signal is output to the switch 33 ( ("OFF" signal) (S22), the drive of the power supply unit 31 (in other words, power supply to the power reception unit 21) is stopped.
Furthermore, the power supply side control device 35a monitors the power capacity of the main battery 23 (S18), and stops the vehicle 2 in the parking space according to the signal sent from the power reception side control device 35b based on the state. Sometimes, if the power capacity of the main battery 23 is lower than a predetermined value, charging is started (S18: No), and when the power capacity is higher than a predetermined value or when the power capacity becomes a predetermined value during charging (S18: Yes), the control of the movable portion 36 and the driving of the primary coil 31a are stopped according to the charge completion signal sent from the power receiving side control device 35b (S20, S22), and the separator 11 and the power feeding portion 31 are set as default. Returned to a certain first position.
Next, the procedure for driving the primary coil 31a will be described based on the part (b) of FIG. This procedure is performed in real time with the processing of the power supply side control device 35a. When the separator 11 and the primary coil 31a are in the second position, the drive signal output from the power supply side control device 35a is received (S26), and the switch 33 becomes conductive (S28). AC power is supplied to the circuit 32 (S30), and power feeding is started between the primary coil 31a and the secondary coil 21a (S32).
In this embodiment, when a power reception request signal is received, the movable portion 36 is moved by the control signal output from the power supply side control device 35a to switch the positions of the separator 11 and the power supply portion 31, and then the power supply side. The switch 34 is closed by a drive signal output from the control device 35a, and the power supply from the power supply unit 31 to the power reception unit 21 is started. You may comprise so that the timing which starts may be performed substantially simultaneously.
In addition, when the charging is completed or when the charging is stopped in the middle of charging, the system ending procedure is to first stop the power supply after performing the procedure of placing the separator 11 and the power supply unit 31 at the first position. You may make it perform a procedure, and you may perform the procedure which arrange | positions the isolation material 11 and the electric power feeding part 31 in a 1st position, and the procedure which stops electric power feeding simultaneously.
Further, in the case where charging is stopped when the main battery 23 is not fully charged, it is needless to say that the motor 25 cannot be controlled until the separator 11 and the power feeding unit 31 are returned to the first position. No.
Specifically, the power supply side control device 35a constantly monitors a limit signal indicating that the separator 11 and the power supply unit 31 are at the first position, so that the power supply side control device 35a can detect the limit signal at the first position. Unless it is detected, the motor 25 may be configured not to be controlled.
The difference between the fifth embodiment shown in FIG. 9 and the fourth embodiment already described is the difference in the mounting position of the movable portion 36.
As shown in FIG. 9, in this different embodiment, the movable portion 36 is provided in the power receiving portion 21 on the power receiving device 20 side mounted on the vehicle 2 side.
That is, in the fifth embodiment, the power feeding section 31 is configured such that the primary coil 31a is fixed to the road surface 1, and the vehicle 2 includes the separator 11 and the secondary coil 21a that are separated from the vehicle body. A power receiving unit 21 configured to be integrated with a base 21b which is a support member provided separately is provided, and the separator 11 is integrated with or connected to the power receiving unit 21. By being configured to do so, the separator 11 and the power receiving unit 21 are configured to be able to change their arrangement positions by the movable unit 36.
In other words, in the fifth embodiment, the separator 11 and the power receiving unit 21 in the third embodiment shown in FIG. 5 are integrated or connected, and in the description of the third embodiment, What is necessary is just to read the control object of the movable part 36 by the control signal of the power receiving side control device 36b from “isolating material 11” to “isolating material 11 and power receiving unit 21”, and detailed description is omitted.
As described above, according to the present embodiment, in addition to the effects of the third embodiment, after the vehicle 2 equipped with the power receiving device 20 is parked in the parking space 3, the primary coil 31a rises, so that the secondary coil The electromagnetic coupling of 21a becomes dense, electric power can be efficiently induced on the secondary coil 21a side, and the charging time for the main battery 23 can be shortened.
In addition, since the conversion efficiency of the primary coil 31a and the secondary coil 21a is improved, the size of the coil can be reduced, and the mounting to the vehicle 2 and the installation to the parking space 3 can be performed more easily. Become.
The main difference between the present embodiment and the fourth embodiment is in the movement of the movable portion 36.
Since the movable part 36 in the fourth embodiment only needs to move the base 31b so as to change the separation distance between the primary coil 31a and the secondary coil 21a so as to interlock with the separator 11, the movable part 36 is unidirectional. (It is up and down in the present invention, and will be described as the Z axis in the following description). However, the movable portion 36 in the present embodiment is not limited to the expansion and contraction in the Z axis direction. The power feeding unit 31 is configured to be movable in a direction orthogonal to the Z-axis direction (that is, a horizontal direction, and is described with coordinates defined by the X-axis and the Y-axis in the following description).
That is, in the present embodiment, the second coil is moved in the Z-axis direction from the first position as the reference point so that the separation distance between the primary coil 31a and the secondary coil 21a is interlocked with the separator 11. In addition to being able to change to the position arrangement state, the horizontal relative position is changed from the second position to the X-axis and the Y-axis while keeping the distance between the primary coil 31a and the secondary coil 21a. It can be changed to any of the arrangement states of the third position, which is an arbitrary coordinate within a predetermined range in the direction.
This embodiment will be described in detail with reference to FIG.
FIG. 10 shows a state in which the separating material 11 and the power feeding unit 31 are in the second position in the power feeding state, and the position of the separating material 11 and the power feeding unit 31 is changed to the left and right in the drawing.
The power supply device 30 in this embodiment also receives a control signal from the power supply side control device 35a constituting the device 30 to the movable portion 36 in response to a charge request signal from the power reception device 20 provided in the vehicle 2. The movable portion 36 in this embodiment is configured to output the separator 11 and the power feeding portion 31 from the first position to the second position in response to a control signal from the power feeding side control device 35a. The distance between the primary coil 31a and the secondary coil 21a is set to a predetermined dimension, and at least a space formed between the road surface 3 and the bottom surface of the vehicle 2 is surrounded by the separator 11. .
Next, with the second position as the origin, the separator 11 and the power supply unit 31 are set in advance within a predetermined range in a direction parallel to the plane formed by the power supply unit 31, particularly at a predetermined point in the power supply unit 31. The power feeding unit 31 is configured to sequentially move in a predetermined order so as to be located at a third position having a plurality of arbitrary coordinates.
On the other hand, the power supply side control device 35a receives a limit signal indicating that the separator 11 and the power supply unit 31 are disposed at the second position, outputs a drive signal to the switch 33, and puts the switch 33 into a conductive state. As a result, the drive circuit 32 starts to be driven, and the secondary coil 21a is fed from the primary coil 31a. Furthermore, in the present embodiment, the control signal output from the power supply side control device 35a is also transmitted to the power receiving device 20 side via the communication unit 37a and the transmission unit 37b.
On the other hand, on the power receiving device 20 side, when a control signal is received via the receiving unit 28b and the communication unit 28a, the power receiving side control device 35b acquires position data of the power feeding unit 31 at a predetermined point from the control signal. .
This position data is obtained when each of the coordinates when the power feeding unit 31 is sequentially moved from the origin, which is the second position, to the third position based on a predetermined order within a predetermined range. The power receiving side control device 35b receives the position data and stores the coordinates of the power supplying unit 31.
Each time the power receiving side control device 35b receives the position data (in other words, every time the power feeding unit 31 sequentially moves the coordinates in accordance with the control signal), the power receiving side control device 35b obtains a table (for example, Then, the power data of the magnitude of the AC power induced in the secondary coil 21a is collected from the charging circuit 22, and a table in which the power data and the position data are associated is created.
Furthermore, the power receiving side control device 35b induces the secondary coil 21a most from the obtained power data when the acquisition of the power data is completed at all coordinates in the movable range of the separator 11 and the power feeding unit 31. The coordinate data that increases the AC power to be output is output as the optimum position information. The power receiving side control device 35b, based on the data from the processing unit 7 obtained by constantly monitoring the power capacity of the main battery 23, if the power capacity of the main battery 23 is greater than or equal to a predetermined value, displays the full charge information. Output.
And this optimal position information and full charge information are transmitted to the electric power feeder 30 side as an optimal position control signal and a charge completion signal via the communication part 27a and the transmission part 27b. On the power feeding device 30 side, these signals are received via the receiving unit 38b and the communication unit 38a. The power feeding side control device 35a outputs a control signal based on the received optimum position information to the movable portion 36, and the power feeding portion 31 is moved to the secondary coil 21a most by the movable portion 36 together with the separator 11. It arrange | positions in the 3rd position which is a position where the induced alternating current power becomes large.
Further, when the power supply side control device 35a receives the charge completion signal, it stops the output of the control signal for the movable portion 35 and the drive signal for the switch 33, and finishes the system so as to be in a standby state.
Here, a specific example of the operation of the separator 11 and the power feeding unit 31 will be described with reference to FIGS. 11 and 12, and the processing procedure of the system will be described in detail.
Note that, in the following description according to this embodiment, for the sake of clarity, the description will be given focusing only on the movement of the power feeding unit 31 unless otherwise specified. However, the separator 11 is integrated with the power feeding unit 31. Needless to say, since it is connected or connected, it moves in conjunction with the power feeding section 31.
FIG. 11 is a diagram focusing on the power supply unit 31, and the power supply unit 31 in the third embodiment changes from the “first arrangement” that is the reference point to the “second arrangement” as the origin of the “third arrangement”. FIG. 6 is a diagram schematically showing a movement that rises to “arrangement” and further becomes “third arrangement” having arbitrary coordinates in the horizontal direction.
In FIG. 11, C indicates the approximate center of the primary coil 31 a constituting the power supply unit 31, and this center point C is a predetermined point of the power supply unit 31. In addition, the range indicated by the broken line drawn outside the power supply unit 31 in the diagram of {the layout diagram of the power supply unit 31 in the “second arrangement” and the movable range in the “third arrangement” shown in the center of FIG. Shows a range in which the power feeding unit 31 can move in the horizontal direction, and is a predetermined range in the present invention.
In addition, the portion partitioned by the grid shown in the central portion of the power feeding unit 31 depicted in this layout drawing is a range in which the center point C of the primary coil 31a moves when the power feeding unit 31 moves within a predetermined range. When the center point C moves to an arbitrary coordinate within this range, the power feeding unit 31 is disposed in the “third arrangement”.
In addition, the figure drawn on the upper side of FIG. 11 is an enlarged view of the grid portion extracted for easy understanding of the coordinates of the movement of the center point C and the order of the movement. FIG. 12 shows a processing procedure of the system according to the third embodiment. (A) is a flowchart of the power supply side control device 35a provided in the power supply device 30, and (b) is a power supply side control device 35a. The procedure for driving the primary coil 31a, which is performed in accordance with the process (c), is a flowchart of the power receiving side control device 35b provided in the power receiving device 20.
According to FIGS. 11 and 12, the coordinates (X, Y, Z) of the approximate center point C of the primary coil 31a when the separator 11 and the power feeding part 31 are in the first position which is the state before power feeding are obtained. When the reference point is (0, 0, 0), the power supply side control device 35a receives the charge request signal (in the case of S100: Yes) and outputs a control signal to the movable part 36 (S102). The movable portion 36 is disposed at the second position where the feeding portion 31 is pushed upward by α, and the coordinates of the substantially center point C of the primary coil 31a are increased by α in the Z-axis direction (0, 0, α).
The coordinates of the center point C are the same as the coordinates P (13) at the third position and are the origin of the third position. And if the electric power feeding part 31 is arrange | positioned in the 2nd position, the limit signal which shows this arrangement | positioning state will be received (S104: Yes), and the electric power feeding side control apparatus 35a will be "closed" with respect to the switch 33. A drive signal is output (S106), and the process proceeds to the next step (S108). If it is not the second position (S104: No), the process returns to step (S102) and is repeated.
Here, the driving procedure of the primary coil 31a (S206 to S212 shown in part (b) of FIG. 8) performed in response to the driving signal output in step (S106) is the same as that of the fourth embodiment (S26). ~ S32), detailed description is omitted.
On the other hand, when the power supply side control device 35a has not received the charge request signal (S100: No), the power supply side control device 35a outputs a control signal for putting the system in a standby state to the movable portion 36 (" ("OFF" signal) (S118), the power supply unit 31 is disposed at the first position, which is the position before power supply, in which the upper surface of the power supply unit 31 is stored in a flat state with the road surface 1. By outputting an “open” drive signal to the switch 33 (“OFF” signal) (S120), no power is supplied from the power supply unit 31 to the power reception unit 21, and the system enters a standby state.
Further, if the power supply side control device 35a outputs a drive signal of “closed” to the switch 33 (S106), the power supply side control device 35a is based on data from the processing unit 7 obtained by constantly monitoring the power capacity of the main battery 23. When the vehicle 2 is parked in the parking space 3, if the power capacity of the main battery 23 is lower than the predetermined value (S108: No), charging is started and the process proceeds to the next step (S110).
On the other hand, when the power capacity of the main battery 23 is equal to or greater than a predetermined value, that is, when a charge completion signal is received (S108: Yes), output of the control signal for the movable part 36 and the drive signal for the closed circuit 33 is stopped (S118). , S120).
When the power capacity of the battery 23 is lower than the predetermined value (S108: No), the power supply side control device 35a maintains a height α of the power supply unit 31 with respect to the power supply unit 31 while maintaining a predetermined range in the horizontal direction. A control signal is output to the movable part 36 so as to move to the “third arrangement” having an arbitrary coordinate different from the coordinate P (13).
Specifically, the power supply side control device 35a first determines the center point C of the primary coil 31a based on the control signal for “third arrangement” output in a predetermined order. By outputting a control signal for disposing at the coordinates P (1) (2, 2, α) that is the point of the center point C in the third position (S110), the primary coil 31a is set to the coordinates P (1). Move.
On the other hand, the control signal output from the power supply side control device 35a and disposed at the coordinate P (1) is output as position data of the coordinate P (1) (S112), and the communication unit 37a and the transmission unit 37b are transmitted. Via the power receiving device 20 side.
Further, the power supply side control device 35a determines the position data of the coordinate P (25) based on the number n of coordinates P (n) stored in advance (n = 1, 2,... 25 in the embodiment of the present invention). Is output (in the case of S114 No), the control signal of the coordinate P (n) is sequentially output to the movable unit 36 to move the arrangement position of the power feeding unit 31 and the coordinate P (n) The process of sequentially sending the position data to the power receiving apparatus 20 side is repeated (S106 to S114). If the position data of the coordinate P (25) is output (in the case of S114 Yes), the process proceeds to the next step of acquiring the optimum position control signal sent from the power receiving side control device 35b provided in the power receiving device 20 (S122).
On the other hand, the power receiving side control device 35b provided on the side of the power receiving device 20 has the coordinates P (1) output in step (S112) of the power feeding side control device 35a, as shown in part (c) of FIG. The position data is acquired and stored as the position data of the coordinate P (1) (S312), and the power receiving side control device 35b, for example, in the secondary coil 21a when the power feeding unit 31 is at the coordinate P (1). Data of induced AC power is acquired through the processing unit 7 (S314).
And if both data are acquired, the table which matched the position data of coordinate P (1) and electric power data will be created (S316). Similarly, the coordinates sequentially move as P (2) (1, 2, α), P (3) (0, 2, α)..., P (25) (−2, −2, α). Accordingly, the position data of these coordinates P (2), P (3)..., P (25) is compared with the data of the magnitude of the AC power induced in the secondary coil 21a at each coordinate. The created table is created (in the case of S312 to S318 No).
In addition, when the table at all coordinates is completed (S318: Yes), the power receiving side control device 35b has the coordinate P (m) with the largest induced AC power (PW max) among the tables. ) Is extracted (S320), and the position data of the coordinate P (m) is fed back to the power supply side control device 35a included in the power supply device 30 as an optimum position control signal (S322).
Further, in the power supply side control device 35a, if the position data of the coordinate P (25) is sent to the power reception side control device 35b (S114: Yes), the optimum position control signal sent from the power reception side control device 35b is acquired. Then, the position data of the coordinates P (m) is extracted (S122), and a control signal corresponding to the position data is output to the movable part 36 (S124). Based on this control signal, the movable part 36 arranges the power feeding part 31 at the coordinate P (m) of the third position, which is the position where the AC power induced in the secondary coil 21a is the largest.
If the power capacity of the main battery 23 is lower than a predetermined value based on the data from the processing unit 7 obtained by constantly monitoring the power capacity of the main battery 23 (S126: No), Continue charging.
If the power capacity of the main battery 23 is higher than a predetermined value (S126: Yes), the control signal for the movable part 36 and the output of the drive signal for the closed circuit 33 are stopped (S118, S120), and the end of system standby is completed. Process.
Note that the grid division method and the order of movement of the power feeding unit 31 shown in this embodiment are merely examples, and are not limited to the examples.
This embodiment is a different example of the sixth embodiment, and the difference is the difference in the attachment position of the movable portion 36.
As shown in FIG. 13, in this embodiment, the movable part 36 is provided on the secondary coil 21a side of the power receiving device side 20 mounted on the vehicle 2 side.
That is, in this embodiment, the power supply unit 31 is configured such that the primary coil 31a is fixed to the road surface 1 side, and the vehicle 2 is provided with the separator 11 and the power reception unit 21, and the power reception unit The part 21 is configured such that the secondary coil 21 a is integrated with a base 21 b that is a support member provided separately from the vehicle body, and the separator 11 is integrated with the power receiving unit 21. In addition, by being configured to be connected, the separator 11 and the power receiving unit 21 are switched by the movable unit 36 from the first position to the third position through the second position. It is configured to be able to.
When the power supply side control device 35a receives the charge request signal, the power supply side control device 35a outputs a response signal giving permission to control the movable portion 36 to the power reception side control device 35b, and “closed” to the switch 33. The drive signal is output. In addition, when receiving the response signal, the power receiving side control device 35 b outputs a control signal for controlling the power receiving unit 21 to the movable unit 36.
The present embodiment configured as described above will be specifically described.
If the activation determination unit 26 determines that the parking brake is “ON”, it sends a charge request signal to the power supply device 30 side. Then, the power supply device 30 that has received the charge request signal receives the charge request signal from the power supply side control device 35 a provided in the power supply device 30 to the power reception side control device 35 b provided in the power power reception device 20. Then, a response signal for permitting driving of the movable portion 36 is transmitted to the power receiving device 20 side.
On the other hand, when a response signal is received on the power receiving device 20 side, the power receiving side control device 35b sends a control signal to the movable portion 36, whereby the power receiving unit 21 narrows the interval with the power feeding unit 3. In this way, the separator 11 is lowered to the second position, and the separator 11 surrounds the space formed between the power receiving unit 21 and the bottom surface of the vehicle 2. Thereafter, the separator 11 and the power receiving unit 21 are sequentially moved to the coordinates of the third position based on a predetermined point and order.
In addition, when the power receiving side control device 35b detects a limit signal indicating that the movable portion 36 has placed the separator 11 and the power receiving portion 21 at the second position, the power receiving side control device 35a uses the result as a drive permission signal. To send to.
When receiving the drive permission signal, the power supply side control device 35a outputs a “closed” drive signal to the switch 33. Based on this “closed” driving signal, the switch 33 becomes conductive, AC power is supplied to the driving circuit 32, and the primary coil 31a is driven.
That is, in the present embodiment, the separator 11 and the power receiving unit 21 provided on the bottom surface on the vehicle 2 side are lowered, but charging is performed between the power receiving unit 20 and the power feeding device 30 as described above. Unless the “predetermined procedure” such as reception of a desired signal and reception of a response signal is obtained, the separator 11 and the power receiving unit 21 do not descend, so that the movable isolation is provided on the vehicle 2 side. Even if the material 11 and the power receiving unit 21 are provided, there is no problem in safe operation of an expressway or the like. Further, unless the drive permission signal is sent from the power receiving device 20 to the power feeding device 30, the primary coil 31a is not driven, so that energy saving can be realized.
Then, the power receiving side control device 35b creates a table of coordinate data and power data corresponding to the coordinates, and extracts the coordinate data that maximizes the power data, so that the power receiving side control device 35b receives the power receiving unit 21. Can be arranged at the third position of the most efficient position.
For example, in the above-described embodiment, the power receiving device 20 has been described as including the communication units 27a and 28a, the transmission unit 27b, and the reception unit 28b as an example of the power-receiving-side communication unit. You may comprise integrally as a part. Similarly, the power supply device 30 has been described as including the communication units 37a and 38a, the transmission unit 37b, and the reception unit 38b as an example of the power supply side communication unit, but these are integrated as one communication unit. It may be configured.
Moreover, in the said embodiment, the transmission part 37b and the receiving part 38b by the side of the electric power supply apparatus 30 are arrange | positioned behind the parking space 3, and the transmission part 27b and the receiving part 28b by the side of the power receiving apparatus 20 are the rear part of the vehicle 2. However, the transmission unit 37b and the reception unit 38b on the power supply device 30 side are arranged on the road surface of the parking space 3, and the transmission unit 27b and the reception unit 28b on the power reception device 20 side are arranged on the vehicle 2. May be provided at a position facing the receiving unit 38b and the transmitting unit 37b on the power supply device 30 side when the vehicle 2 is stopped at the optimal position. Each of these units may be configured to transmit and receive optical signals.
Furthermore, in the above embodiment, the power feeding unit 31 and the power receiving unit 21 are described as being configured by coils (a primary coil 31a and a secondary coil 21a) formed by winding a metal wire. Any device that can supply power without contact may be used. For example, a wireless power transmission method using microwaves may be used.
In this case, a waveguide slot antenna may be used as the power feeding unit 31, and a microwave antenna composed of a microstrip line may be used as the power receiving unit 21. In this case, the drive circuit 32 of the power feeding unit 31 is a microwave source, and the charging circuit of the power receiving unit 21 may be configured by a diode or the like that detects microwaves.
Moreover, although the electric power feeding part 31 of the electric power feeder 30 was arrange | positioned along the road surface of the parking space 3, and the electric power receiving part 21 of the electric power receiving apparatus 20 was provided in the bottom face of the vehicle 2, it demonstrated that the electric power feeding part 31 and electric power reception were received. When the vehicle 2 is stopped in the parking space 3, the unit 21 may be arranged so as to face each other, and is not necessarily arranged as in the above embodiment.
In the above-described embodiment, the power supply system using the vehicle 2, that is, the electric vehicle, is described as the moving body. However, the moving body may be a motorcycle or the like. In addition, the mounting table on which the moving body is mounted is described as the parking space 3 using the road surface 1, but instead of the road surface 1, a lift parking system configured to be able to mount the entire moving body. It may be a vehicle stand or a self-propelled parking floor.
Still further, in the fourth to seventh embodiments, the separator 11 and the power feeding unit 31 or the separator 11 and the power receiving unit 21 are configured so as to be integrated or connected to each other, thereby making one movable. Although the example in which both the means can be switched at the same time with the part 36 is shown, it is configured separately, and each means is provided with a movable part. Also good.
In each of the above embodiments, the power receiving unit 21 corresponds to a power receiving unit of the present invention as an example, the power feeding unit 31 corresponds to a power feeding unit of the present invention as an example, and the power receiving side control device 35b is illustrated as an example. The power supply side control device 35a corresponds to the power supply side control means of the present invention as an example. In addition, the communication units 27a and 28a, the transmission unit 27b, and the reception unit 28b mounted on the vehicle 2 correspond to a power receiving side communication unit of the present invention as an example, and a communication unit 37a installed on the parking space 3 side, The reference numeral 38a, the transmission unit 37b, and the reception unit 38b correspond to power supply side communication means of the present invention as an example.
A power supply device provided with a power supply unit that is provided on a mounting table on which the mobile body can be mounted and that supplies power to the mobile body mounted on the mounting table in a contactless manner;
Provided in the movable body that can be placed on the mounting table, charging means for charging a main battery mounted on the moving body, and when the moving body is mounted on the mounting table, the power supply A power receiving device including a power receiving unit that receives power from the unit in a non-contact manner and supplies the received power to the charging unit;
It is formed in a cylindrical shape with an insulator so as to surround the space formed by each projection surface when the power feeding unit and the power receiving unit are arranged to face each other, and the height in the central axis direction of the cylinder is It is formed so as to have a predetermined dimension slightly smaller than an interval between the mounting table and the bottom surface of the moving body, thereby preventing foreign matter from entering the space between the power feeding unit and the power receiving unit. Isolation material,
A power supply system for a moving body, characterized in that
When charging to the main battery is necessary, a power receiving side control device that transmits a charge request signal from the power receiving side communication means;
When the charging request signal is received by the power supply side communication unit, a power supply side control device that starts power supply from the power supply unit to the power reception unit;
The power supply system for a mobile body according to claim 1, comprising:
A power feeding side movable part that moves the separator between a first position stored in the mounting table and a second position that protrudes from the mounting table and prevents foreign matter from entering the space. Is provided,
The power supply side control device moves the separator from the first position to the second position via the power supply side movable portion when the charge request signal is received by the power supply side communication means. The power supply system for a mobile body according to claim 2, wherein
The power-receiving-side movable that moves the separator between a first position stored in the moving body and a second position that protrudes from the moving body and prevents foreign matter from entering the space. Part is provided,
The power supply side control device is configured to transmit a response signal corresponding to the charge request signal from the power reception side communication unit when the charge request signal is received by the power supply side communication unit,
When the response signal is received by the power receiving side communication unit, the power receiving side control device moves the separator from the first position to the second position via the power receiving side movable portion. The power supply system for a moving body according to claim 2.
The power feeding side movable unit is configured to move the separator and the power feeding unit between a first position stored in the mounting table and a second position protruding from the mounting table. The power supply system for a mobile unit according to claim 3, wherein
The power-receiving-side movable unit is configured to move the separator and the power receiving unit between a first position housed in the moving body and a second position protruding from the moving body. The power supply system for a mobile unit according to claim 4, wherein
The power receiving device includes received power detection means for detecting the magnitude of received power output from the power receiving unit to the charging means,
The power receiving side control device is configured to transmit the detection result of the received power by the received power detection means in addition to the charge request signal via the power receiving side communication means,
The power feeding side movable portion is configured to be able to move the separator and the power feeding portion also in a surface direction along a surface facing the power receiving portion,
When the power feeding side control device starts power feeding from the power feeding unit to the power receiving unit, the power feeding side control unit moves the isolating material and the power feeding unit in the surface direction via the movable unit, and 6. The position at which the received power is maximized is detected based on the received power detection result, and the movement of the isolation member and the power feeding unit is stopped at the detected position. Mobile power supply system.
The power-receiving-side movable unit is configured to be able to move the isolation member and the power receiving unit also in a surface direction along a surface facing the power feeding unit,
When the power receiving side control device moves the isolating material and the power receiving unit from the first position to the second position via the power receiving side movable unit, then the power receiving side movable unit is configured to move the isolating material and the power receiving unit via the power receiving side movable unit. While moving the power receiving unit in the surface direction, the position where the received power detected by the received power detection means becomes maximum is detected, and the movement of the separator and the power receiving unit is stopped at the detected position. The power supply system for a mobile body according to claim 6, wherein
The power receiving side communication means transmits a charge request signal output from the power receiving side control device when the movement stop state of the moving body is detected by the stop state detecting means, and the stop state detecting means 9. The mobile power supply system according to claim 2, wherein transmission of the charge request signal is stopped when the stop state of the mobile body is not detected.
PCT/JP2010/053011 2009-02-25 2010-02-25 Power supply system for moving body WO2010098412A1 (en)
JP2009-042427 2009-02-25
JP2009042427 2009-02-25
WO2010098412A1 true WO2010098412A1 (en) 2010-09-02
ID=42665616
PCT/JP2010/053011 WO2010098412A1 (en) 2009-02-25 2010-02-25 Power supply system for moving body
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