Source: https://patents.google.com/patent/US7070119?oq=%22edwin+asa+markham%22
Timestamp: 2018-03-25 04:15:13
Document Index: 204749701

Matched Legal Cases: ['art 160', 'art 170', 'art 140', 'art 160', 'art 140', 'art 140', 'art 140', 'art 140', 'art 160', 'art 160', 'art 170', 'art 140', 'art 140', 'art 140', 'art 140', 'art 140', 'art 140', 'art 140']

US7070119B2 - Vehicle heater control apparatus and method for controlling the same - Google Patents
Vehicle heater control apparatus and method for controlling the same Download PDF
US7070119B2
US7070119B2 US10750656 US75065603A US7070119B2 US 7070119 B2 US7070119 B2 US 7070119B2 US 10750656 US10750656 US 10750656 US 75065603 A US75065603 A US 75065603A US 7070119 B2 US7070119 B2 US 7070119B2
US10750656
US20050077367A1 (en )
FIGS. 3 a and 3 b are schematic views showing the detailed structure of the cooling water control part installed in the bypass in FIG. 3 and showing the cooling water conduit according to the control of the engine control part;
FIG. 5 a is a graph showing a relationship between the interior temperature and the voltage applied to the solenoid coil according to a preferred embodiment of the present invention; and
FIG. 5 b is a graph showing a relationship between the voltage applied to the solenoid coil and the open angle of the guide pin of the first and second conduit.
As shown in FIGS. 3 a and 3 b, the cooling water conduit control part 160 includes a support bearing 160 a for supporting the cooling water bypass at the upper and lower portions thereof. A cylindrical guide bar 160 b is inserted in the support bearing 160 a. The solenoid coil 160 c is formed on the outside of the guide bar 160 b for forming a magnetic field according to the signals output from the relay 150. First and second conduit magnetic regulators 160 d and 160 e, move based on the magnetic field formed by the solenoid coil 160 c. The stopper 160 f is formed in the intermediate portion of the guide bar 160 b and supports the first and second magnetic regulators 160 d and 160 e. First and second magnetic regulator springs 160 g and 160 h return the first and second magnetic regulators 160 d and 160 h to the original positions, respectively. First and second conduit guide pins 160 i and 160 j are pushed by the first and second magnetic regulators 160 d and 160 e for bypassing the cooling water, and first and second conduit guide pin springs 160 k and 160 l return the first and second conduit guide pins 160 i and 160 j when the first and second magnetic regulator springs 160 g and 160 h are returned.
The first and second magnetic regulators 160 d and 160 e are preferably formed with rolling wheels 160 d-1 and 160 e-1 on the end portion thereof. One side of the first and second magnetic regulators 160 g and 160 h is fixed to the first and second magnetic regulators 160 d and 160 e, and another side thereof is fixed to the stopper 160 f, respectively. One side of the first and second conduit guide springs 160 k and 160 l is fixed to the first and second conduit guide pins 160 i and 160 j, and another side thereof is fixed to the upper side of the bypass part 170.
A heater control apparatus of the present invention further includes a switch 160 m for removing the electric current remaining in the solenoid coil 160 c when the output signals are isolated.
Consequently, the relay 150 is turned off when the control signals are not output from the engine control part 140. Therefore, as shown FIG. 2, the cooling water control part 160 formed in the cooling water bypass 170 which is connected to the cooling input/output conduits 10 and 20 of the heater core case is not operated. As shown FIG. 3 a, cooling water is normally moved through the input/output conduits 10 and 20 of the heater core case and the core 30.
The cooling water bypass 170 controls the conduit of the cooling water so that cooling water is bypassed according to the control signals of the engine control part 140. That is, the solenoid coil 160 c forms a magnetic field according to the control signals of the engine control part 140 and generates a repulsive force. Then, the first and second conduit magnetic regulators 160 d and 160 e, respectively move to the left and right through the cylindrical guide bar 160 b. The rolling wheels 160 d-1 and 160 e-1, respectively formed on the end portion of the first and second conduit magnetic regulators 160 d and 160 e, push the first and second conduit guide pins 160 i and 106 j, as shown in FIG. 4 b abd the cooling water is bypassed. Then, the cooling water flowing into the core 30 through the input/output conduits 10 and 20 of the heater core case is isolated.
The engine control part 140 does not output the control signals if the signals sensed by the temperature control lever angle sensor 120 are greater than 0° (heating, condition) and the signals sensed by the interior temperature sensor 130 are over 20° C., so that the normal cooling water conduit is formed. Then, the relay 150 is turned off since the control signals output from the engine control part 140 are not output, thereby preventing the generation of a magnetic field by the solenoid coil 160 c of the cooling water conduit control part 160.
The first and second magnetic regulators 160 d and 160 e are returned to the original position by the first and second magnetic regulator springs 160 g and 160 h. The springs 160 g and 160 h are formed in an intermediate portion of the cylindrical guide bar 160 b inserted in the supporting bearing 160 a for supporting the upper and lower portion of the cooling water bypass 170. Further, one side of the springs 160 g and 160 h is fixed to the first and second magnetic regulators 160 d and 160 e of the cooling water conduit control part 160. Further, another side of the springs 160 g and 160 h is fixed to the stopper 160 f for supporting the first and second magnetic regulators 160 d and 160 e.
The first and second conduit guide pins 106 i and 160 j are returned to the original position by the first and second conduit guide pin springs 160 k and 160 l. One side of the pins 106 i and 160 j is fixed to the first and second conduit guide pins 106 i and 160 j, and another side thereof is fixed to the upper side of the bypass part 170. Meanwhile, a driver can remove electric current remaining in the solenoid coil 160 c by isolating the signals outputted from the relay 150 by operating the switch 160 m.
As explained above, in the present invention, the amount of cooling water which flows into the heater core 30 is regulated by regulating the amount of the cooling water being bypassed. Further, the amount of cooling water being bypassed in the heater controlling apparatus is varied according to the opening angle of the first and second guide pins 160 i and 160 j.
In the present invention, if the temperature control lever 10 is under air conditioning mode and the interior temperature of a vehicle is below the preset standard, unlike as in prior art, the opening angle α of the first and second conduit guide pins 160 i and 160 j is controlled by the engine control part 140 variably according to the signals input from the interior temperature sensor 130 thereby allowing bypass of the regulated amount of cooling water according to the interior temperature and also allowing the remaining cooling water to be flowed into the heater core 30.
Further, if the temperature control lever is in the air conditioning mode and the interior temperature is over the preset standard, as in prior art, the cooling water bypass is filly opened, whereby the whole cooling water is bypassed. The first and second guide pins 160 i and 160 j are controlled so that the inlet and outlet of the cooling bypass 170 are fully opened and the inlet and outlet of the inner conduit of the heater conduit 30 are fully closed.
As shown in FIG. 3 b, the opening angle α of the first and second conduit guide pins 160 i and 160 j refers to the opening position of the two conduit guide pins 160 i and 160 j when the corresponding magnetic regulators 160 d and 160 e are moved left and right by the magnetic field formed in the solenoid coil 160 c in the condition in which two conduit guide pins 160 i and 160 j are fully opened. That is, the opening angle α refers to the slanted angle. This means the opening amount of the inlet and outlet of the cooling water bypass 170.
If the opening angle α of the first and second conduit guide pins 160 i and 160 j is 0°, the inlet and outlet of the cooling water bypass 170 are fully closed. Further, in a condition in which the inlet and outlet of the cooling water bypass 170 are opened at its maximum, the opening angle α is greatest and the inlet and outlet of the inner conduit of the heater core 30 are fully closed.
In the present invention, the engine control part 140 controls the voltage being applied to the solenoid coil 160 c through the relay 150 base on the temperature signals being input from the interior temperature sensor 130, so that the opening amount of the inlet and outlet of the cooling water bypass 170 (that is, the opening angle α of the first and second conduit guide pins 160 i and 106 j) varies according to the interior temperature of a vehicle.
If the voltage being applied to the solenoid coil 160 c is varied, the repulsive force being formed by the magnetic field is varied. Therefore, the greater the applied voltage is, the greater the repulsive force is. If the repulsive force is greater, the first and second magnetic regulators 160 d and 160 e make movements to left and right. Therefore, if the conduit guide pins 160 i and 160 j make bigger movements, the opening angle α becomes greater.
In the present invention, as shown in FIG. 5 a, if the interior temperature sensed by the interior temperature sensor 130 is within a pre-set temperature region below the preset standard temperature, the engine control part 140 applies a relatively higher voltage to the solenoid coil 160 c as the interior temperature becomes higher. That is, if a preset standard temperature (hereinafter referred to as second temperature, T2) is 20° C. and an another preset standard temperature, which is lower, (hereinafter referred to as first temperature, T1) is −5° C., in the temperature region of −5° C.<T<20° C., the engine control part 140 controls the application of the voltage to the solenoid coil 160 c in proportion to the increase in the interior temperature being sensed by the interior temperature sensor 130.
As shown in FIG. 5 b, as the applied voltage becomes higher, the repulsive force according to the magnetic field is increased. Therefore, the opening angle α of the conduit guide pins 160 i and 160 j is determined according to the position of each magnetic regulator 160 d and 160 e, and more cooling water is bypassed.
If the interior temperature T is over −5° C. and below 20° C., together with the turning on of the relay 150, the engine control part 140 controls the voltage being applied to the solenoid coil 160 c in proportion to the increase of the temperature in the temperature region, −5° C.<T<20° C.
The engine control part 140 applies to higher voltage of the solenoid coil 160 c if the interior temperature T is within the temperature region. Therefore, the higher the voltage of the solenoid coil 160 c being applied, the greater the repulsive force formed by a magnetic field is. Further, as each of magnetic regulators 160 d and 160 e is moved more heavily, the opening angle α of each of conduit guide pins 160 i and 160 j becomes greater.
Meanwhile, if the interior temperature T is over 20° C., the engine control part 140 applies the greatest voltage to the solenoid coil 160 c together with the turning of the relay 150, whereby each conduit guide pins 160 i and 160 j is opened at its maximum, and then the inlet and outlet of the inner conduit of the heater core 170 are fully closed. Finally, the whole cooling water is bypassed through the cooling water bypass 170 without passing through the inside of the heater core 30.
an engine control part for outputting a control signal in order to control an opening mode of the conduits comparing a signal generated from the temperature control lever angle sensor and a signal generated from the interior temperature sensing sensor with reference to corresponding set-point values;
wherein the engine control part outputs a control signal corresponding to a normal state of the conduits when the control signal generated from the temperature control lever angle sensor is higher than 0° C., and simultaneously the control signal generated from the interior temperature sensing sensor is above 20° C.;
and wherein the engine control part outputs a control signal corresponding to the opening mode of the cooling water bypass when the control signal generated from the temperature control lever angle sensor is below 0° C., and simultaneously the control signal generated from the interior temperature sensing sensor is below 20° C. in order to bypass the cooling water without passing through the heater core;
US10750656 2003-10-11 2003-12-31 Vehicle heater control apparatus and method for controlling the same Active 2024-07-19 US7070119B2 (en)
KR20030070804A KR100521563B1 (en) 2003-10-11 2003-10-11 Controlling method for heater control apparatus of vehicle
KR2003-70804 2003-10-11
US20050077367A1 true US20050077367A1 (en) 2005-04-14
US7070119B2 true US7070119B2 (en) 2006-07-04
ID=34420614
US10750656 Active 2024-07-19 US7070119B2 (en) 2003-10-11 2003-12-31 Vehicle heater control apparatus and method for controlling the same
US (1) US7070119B2 (en)
JP (1) JP3899438B2 (en)
KR (1) KR100521563B1 (en)
CN106080105A (en) * 2016-06-30 2016-11-09 京东方科技集团股份有限公司 Vehicle temperature control system
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US6037567A (en) * 1998-02-09 2000-03-14 Denso Corporation Vehicle air-conditioning system with heat exchanger having integrated electric heaters and temperature control system
JP2002283826A (en) 2001-03-23 2002-10-03 Denso Corp Air conditioner for vehicle
JP3899438B2 (en) 2007-03-28 grant
KR100521563B1 (en) 2005-10-17 grant
KR20050034985A (en) 2005-04-15 application
US20050077367A1 (en) 2005-04-14 application
JP2005119634A (en) 2005-05-12 application
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LEE, DAE WOO;REEL/FRAME:014874/0425