Patent Publication Number: US-2023141675-A1

Title: Apparatus for Controlling Vehicle, Method for Controlling Charging of Vehicle, and System for Charging Vehicle

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit of Korean Patent Application No. 10-2021-0151748, filed on Nov. 5, 2021, which application is hereby incorporated herein by reference. 
     TECHNICAL FIELD 
     The present disclosure relates to a vehicle control apparatus, a method for controlling charging of a vehicle, and a system for charging a vehicle. 
     BACKGROUND 
     Recently, electric vehicles that are driven by charging a battery among vehicles is increasing. Such electric vehicles may be charged at charging stations where chargers are installed. 
     SUMMARY 
     The present disclosure relates to a vehicle control apparatus, a method for controlling charging of a vehicle, and a system for charging a vehicle. Particular embodiments relate to a technology capable of reducing a waiting time for charging a vehicle. 
     Embodiments of the present disclosure can solve problems occurring in the prior art while advantages achieved by the prior art are maintained intact. 
     When a vehicle arrives at a charging station, and when the charger installed at the charging station is charging another electric vehicle, the vehicle may be moved to another charging station to charge the vehicle, or may wait until the charging of another electric vehicle is ended. 
     When a vehicle battery is discharged, it is difficult for the electric vehicle to move or it may not be easy for the electric vehicle to move to another charging station because the vehicle battery may be discharged and stopped while the vehicle is moving. It may take a long time, up to an hour or more, when the vehicle waits until the charging of another electric vehicle is ended to charge the vehicle. 
     In addition, when the vehicle waits until the charging of another electric vehicle is ended to charge the vehicle, a long time may elapse with a vehicle&#39;s ignition turned off (IG Off). When a long time elapses while the vehicle&#39;s ignition is turned off, the temperature of the vehicle battery may decrease. When the temperature of the vehicle battery decreases, the charging performance of the vehicle battery may decrease, so that the time for charging the vehicle may increase. 
     An embodiment of the present disclosure reduces the waiting time for charging a vehicle without moving to another charging station even when a charger installed in a charging station is charging another electric vehicle. 
     In addition, an embodiment of the present disclosure reduces the time for charging a vehicle even when waiting until charging of another electric vehicle is ended. 
     The technical problems to be solved by embodiments of the present disclosure are not limited to the aforementioned problems, and any other technical problems not mentioned herein will be clearly understood from the following description by those skilled in the art to which the present disclosure pertains. 
     According to an embodiment of the present disclosure, the vehicle control apparatus includes a memory, a network interface, and a processor. The processor is configured to recognize that a charging cable is connected, to receive a charging end time of a preceding vehicle and a waiting time until charging starts, to wait for the charging in a state in which the charging cable is connected to a vehicle, and to start the charging at an end time indicating that the charging of the preceding vehicle is ended in the state in which the charging cable is connected to the vehicle. 
     In an embodiment, the processor may receive a notification at the end time. 
     In an embodiment, the processor may perform a preliminary control in accordance with the charging end time of the preceding vehicle. 
     In an embodiment, the preliminary control may include an operation of increasing a charging performance of a vehicle battery. 
     In an embodiment, the preliminary control may include an operation of increasing the temperature of the vehicle battery up to a temperature in a state in which a vehicle&#39;s ignition is turned on (IG On) in accordance with the charging end time of the preceding vehicle. 
     In an embodiment, the processor may receive vehicle information including a charging time, a charging charge, and a drivable distance at at least one of a time when the charging starts and a time when the charging ends. 
     In an embodiment, the processor may receive a stop command indicating to stop the charging from a user irrespective of receiving the vehicle information. 
     According to an embodiment of the present disclosure, a method of controlling charging of a vehicle includes recognizing, by a processor of a vehicle control apparatus, that a charging cable is connected, receiving, by the processor, a charging end time of a preceding vehicle and a waiting time until charging starts, waiting for the charging in a state in which the charging cable is connected to a vehicle, and starting the charging at an end time indicating that the charging of the preceding vehicle is ended in the state in which the charging cable is connected to the vehicle. 
     According to an embodiment of the present disclosure, a vehicle charging system includes a charger including a plurality of charging cables, and a plurality of vehicles, and the charger is configured to proceed charging by allowing a first charging cable of the plurality of charging cables to be connected to a preceding vehicle among the plurality of vehicles, to allow a second charging cable of the plurality of charging cables to be connected to a following vehicle while the charging of the preceding vehicle is proceeded, to transmit a charging end time of the preceding vehicle and a waiting time until charging starts to the following vehicle, to wait for the charging in a state in which the second charging cable is connected to the following vehicle, and to start the charging with respect to the following vehicle at an end time indicating that the charging of the preceding vehicle is ended in the state in which the second charging cable is connected to the following vehicle. 
     In an embodiment, the charger may exclusively charge the preceding vehicle during the charging of the preceding vehicle. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objects, features and advantages of embodiments of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a flowchart illustrating how a vehicle control apparatus controls charging of a vehicle, according to an embodiment of the present disclosure; 
         FIG.  2    is a diagram illustrating a vehicle charging system according to an embodiment of the present disclosure; 
         FIG.  3    is a diagram illustrating a vehicle charging system according to an embodiment of the present disclosure; 
         FIG.  4    is a flowchart illustrating how a vehicle charging system controls charging of a vehicle, according to an embodiment of the present disclosure; and 
         FIG.  5    illustrates a computing system according to an embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS 
     Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the drawings. In adding the reference numerals to the components of each drawing, it should be noted that the identical or equivalent component is designated by the identical numeral even when it is displayed on other drawings. Further, in describing the embodiments of the present disclosure, a detailed description of the related known configuration or function will be omitted when it is determined that it interferes with the understanding of the embodiments of the present disclosure. 
     In describing the components of the embodiments according to the present disclosure, terms such as first, second, A, B, (a), (b), and the like may be used. These terms are merely intended to distinguish the components from other components, and the terms do not limit the nature, order or sequence of the components. Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. 
     Hereinafter, various embodiments of the present disclosure will be described in detail with reference to  FIGS.  1  to  4   . 
     Hereinafter, it is assumed that a vehicle control apparatus performs a process of  FIG.  1   . In addition, in a description of  FIG.  1   , it may be understood that an operation described as being performed by a vehicle control apparatus is controlled by a processor (e.g., a processor  1100  in  FIG.  5   ) of the vehicle control apparatus. 
       FIG.  1    is a flowchart illustrating how a vehicle control apparatus controls charging of a vehicle, according to an embodiment of the present disclosure. 
     In operation  105 , the vehicle control apparatus may receive information about the fact that charging of a first vehicle is started. In this specification, the first vehicle may refer to another electric vehicle that starts charging first through a charger provided in a charging station for charging vehicles. The vehicle control apparatus may receive a notification indicating that charging is first started at the first vehicle from a communication module of the charger. 
     In operation no, the vehicle control apparatus may detect the connection of a charging cable to the second vehicle. In this specification, a second vehicle may refer to a vehicle to which embodiments of the present disclosure are applied. The user of the second vehicle may physically connect a charging cable of the charger to a charging terminal of the second vehicle. The vehicle control apparatus may detect that the charging cable is physically connected to the second vehicle. 
     In operation  115 , the vehicle control apparatus may recognize that the charging cable is connected in the second vehicle. The vehicle control apparatus may recognize that the second vehicle is ready to receive power through the charging cable. 
     In operation  120 , the vehicle control apparatus may receive a waiting time of the second vehicle and may perform a preliminary control of the second vehicle in accordance with a charging end time of the first vehicle. The waiting time of the second vehicle may be a time remaining until charging of the second vehicle is started. The waiting time of the second vehicle may be determined depending on a charging end time of the first vehicle. The vehicle control apparatus may receive the charging end time of the first vehicle and the waiting time of the second vehicle from the communication module of the charger. The vehicle control apparatus may wait for the charging in a state in which the charging cable is connected to the vehicle. 
     The vehicle control apparatus may perform the preliminary control of the second vehicle in accordance with the charging end time of the first vehicle. The vehicle control apparatus may perform pre-conditioning of the second vehicle in accordance with the charging end time of the first vehicle. The pre-conditioning may include an operation of controlling a state of a vehicle battery to be suitable for charging. The pre-conditioning may include an operation of increasing a charging performance of the vehicle battery. The vehicle control apparatus may predict that charging of the second vehicle will start at the charging end time of the first vehicle and may control the battery of the second vehicle to be suitable for charging. 
     The vehicle control apparatus may increase the temperature of the battery of the second vehicle up to a temperature in a state in which a vehicle&#39;s ignition is turned on (IG On) in accordance with the charging end time of the first vehicle as an operation included in the preliminary control of the second vehicle. When the vehicle waits until the charging of another electric vehicle is ended to charge the vehicle, a long time may elapse with the vehicle&#39;s ignition turned off (IG Off). When a long time elapses in the state in which the vehicle&#39;s ignition is turned off, the temperature of the vehicle battery may decrease. When the temperature of the vehicle battery decreases, the charging performance of the vehicle battery may decrease, so that the time for charging the vehicle may increase. The vehicle control apparatus may predict that charging of the second vehicle will start at the charging end time of the first vehicle and may control the temperature of the battery of the second vehicle to a temperature suitable for charging. 
     In operation  125 , the vehicle control apparatus may receive a notification from the charger when charging of the first vehicle is ended and may start the charging. The vehicle control apparatus may receive the notification indicating that charging of the first vehicle is ended from the communication module of the charger. The vehicle control apparatus may switch the second vehicle to a state in which the battery is charged in response to receiving the notification that the charging of the first vehicle is ended. After receiving the notification that the charging of the first vehicle is ended, the vehicle control apparatus may allow the power flowing from the charger to flow into the battery. 
     In operation  130 , the vehicle control apparatus may receive charging information including a charging time, a charge, and a drivable distance. The vehicle control apparatus may receive the charging information transmitted by the charger to the second vehicle. The charging information transmitted to the second vehicle may be transmitted to the second vehicle, to a user&#39;s portable device of the second vehicle, or to both receiving entities. For example, the charging information transmitted to the second vehicle may be transmitted to the vehicle control apparatus of the second vehicle, may be transmitted to a mobile phone of the user of the second vehicle, or may be transmitted to both the vehicle control apparatus and the mobile phone. 
     The charging information may be transmitted periodically to and may be received periodically from the vehicle control apparatus. The charging information may be transmitted from and received by the vehicle control apparatus without a user&#39;s request. The user who has checked the charging information may determine whether to stop charging every time. 
     The charging information may include the charging time, the charge, and the drivable distance. The charging time may mean a time taken while charging is currently in progress. The charge may mean a cost according to the current charging. The drivable distance may mean a drivable distance of the second vehicle after charging. 
     In operation  135 , the vehicle control apparatus may recognize a request to stop charging in the second vehicle. The vehicle control apparatus may recognize that the user of the second vehicle requests to stop charging. The vehicle control apparatus may recognize that the charger requests to stop charging of the second vehicle. When it is recognized that the request to stop charging occurs in operation  135 , the vehicle control apparatus may proceed to operation  155  to immediately end charging. 
     The vehicle control apparatus may determine whether a stop command for executing the charging stop request in operation  135  is performed based on the current vehicle information. The vehicle information may include a time, a charge, and a remaining distance. 
     When an urgent situation occurs in which charging should be stopped, the user may give a stop command to stop charging regardless of vehicle information. The stop command may be transmitted to the control apparatus of the second vehicle, the charging station where the charger is provided, or both receiving objects. The user may transmit the stop command using a vehicle control apparatus of the second vehicle or a portable device such as a mobile phone carried by the user. Therefore, the present disclosure is not limited to sequentially transmitting the stop command after receiving the charging information in operation  130  as illustrated in  FIG.  1   , and may transmit the stop command to stop charging according to an independent command system regardless of operation  130 . 
     In operation  140 , the vehicle control apparatus may recognize that the charging in the second vehicle is ended. The vehicle control apparatus may detect that a capacity of the battery of the second vehicle reaches the maximum capacity. The vehicle control apparatus may receive a notification indicating that the charging of the battery of the second vehicle is completed from the charger. When it is recognized that charging in the second vehicle is ended in operation  140 , the vehicle control apparatus may proceed to operation  150  to receive a charging end notification, and may proceed to operation  155  to end charging. 
     In operation  145 , the vehicle control apparatus may recognize that the additional charging vehicle does not exist. The vehicle control apparatus may receive information from the charger that there are no more vehicles charging additionally. When it is recognized that the additional charging vehicle does not exist in operation  145 , the vehicle control apparatus may proceed to operation  150  to receive the charging end notification, and may proceed to operation  155  to end charging. 
     In operation  160 , the vehicle control apparatus may calculate a time taken until final charging in the second vehicle, a charged charge, and a drivable distance after charging. The vehicle control apparatus may receive vehicle information including the time taken until final charging, the charged charge, and the driving distance after charging from the charger. The vehicle control apparatus may display the received vehicle information on a display unit (e.g., a display of an instrument panel or a navigation system) of the vehicle. 
       FIG.  2    is a diagram illustrating a vehicle charging system according to an embodiment of the present disclosure. 
     A charger  200  may be provided at the charging station of an electric vehicle. The charger  200  may supply power to the electric vehicle through a charging cable. The charger  200  may be a power supply device such as an electric pit (E-Pit). 
     The charger  200  may include a plurality of charging cables. The charging cable may be a charging outlet that may be connected to a charging terminal of an electric vehicle. For example, two charging cables may be installed per one charger  200  provided in the charging station. However, the present disclosure is not limited thereto, and two or more charging cables may be installed per one charger  200  provided in the charging station. 
     Any one of the plurality of charging cables of the charger  200  may be connected to a first vehicle  210 . Another one of the plurality of charging cables of the charger  200  may be connected to a second vehicle  220 . 
     When the first vehicle  210  arrives at the charging station first, the first vehicle  210  may be connected to any one of the plurality of charging cables of the charger  200  first. When the first vehicle  210  arrives at the charging station first, charging of the first vehicle  210  may be started first. After the first vehicle  210  is connected to the charging cable of the charger  200  or while the first vehicle  210  is being charged, the second vehicle  220  may arrive at the charging station. 
     When the second vehicle  220  arrives at the charging station after the first vehicle  210  is connected to the charging cable of the charger  200  or while the first vehicle  210  is being charged, another one of the plurality of charging cables of the charger  200  may be connected to the second vehicle  220 . 
     When the another one of the plurality of charging cables of the charger  200  is connected to the second vehicle  220  while the first vehicle  210  is being charged, the charger  200  may exclusively charge the first vehicle  210 . When the another one of the plurality of charging cables of the charger  200  is connected to the second vehicle  220  while the first vehicle  210  is being charged, the charger  200  may withhold charging of the second vehicle  220 . When the another one of the plurality of charging cables of the charger  200  is connected to the second vehicle  220  while the first vehicle  210  is being charged, the charger  200  may block an output of power to the charging cable connected to the second vehicle  220 . 
     When power is simultaneously output from the plurality of charging cables, charging power is divided into vehicles connected to each of the plurality of charging cables, so that the charging speed of the first vehicle  210  may decrease. When the first vehicle  210  is charging, the charger  200  may exclusively charge the battery of the first vehicle  210  to charge the first vehicle  210  with charging power of a specified capacity regardless of connecting the charging cable to the second vehicle  220 . Accordingly, it is possible to prevent an increase in the charging time of the first vehicle  210  that arrives at the charging station first and is charged first. 
     Based on the charging end time of the first vehicle  210 , before a specific point in time, the charger  200  may perform the preliminary control on the second vehicle  220  waiting to be charged while being connected to the charging cable. The charger  200  may perform the preliminary control of the second vehicle in accordance with the charging end time of the first vehicle  210 . The charger  200  may transmit the charging end time of the first vehicle  210  and the waiting time of the second vehicle  220  to the second vehicle  220 , and may determine a start time of the preliminary control of the second vehicle  220 . 
     The charger  200  may perform the preliminary control with respect to the second vehicle in accordance with the charging end time of the first vehicle  210 . The charger  200  may perform pre-conditioning of the second vehicle  220  in accordance with the charging end time of the first vehicle. The charger  200  may control the state of the battery of the second vehicle  220  to be suitable for charging through the pre-conditioning. The charger  200  may increase the charging performance of the battery of the second vehicle  220  through the pre-conditioning. The charger  200  may control the battery of the second vehicle  220  to be suitable for charging when the charging of the first vehicle is finished and the charging of the second vehicle is started through the pre-conditioning. 
     The charger  200  may increase the temperature of the battery of the second vehicle  220  up to a temperature in a state in which the vehicle&#39;s ignition is turned on (IG On) in accordance with the charging end time of the first vehicle  210 . When the second vehicle  220  waits until the charging of another electric vehicle is ended to perform charging, a long time may elapse in the state in which the vehicle&#39;s ignition is turned off (IG Off). When a long time elapses in the state in which the vehicle&#39;s ignition of the second vehicle  220  is turned off, the temperature of the battery of the second vehicle  220  may decrease. When the temperature of the battery of the second vehicle  220  decreases, the charging performance of the battery may decrease, so that the charging time of the second vehicle  220  may increase. The charger  200  may predict that charging of the second vehicle  220  will start at the charging end time of the first vehicle  210 , and may control the temperature of the battery of the second vehicle  220  to a temperature suitable for charging. 
       FIG.  3    is a diagram illustrating a vehicle charging system according to an embodiment of the present disclosure. 
     When the charging of the first vehicle  210  is ended, the charger  200  may transmit a notification indicating that the charging of the first vehicle  210  is ended to the second vehicle  220 . The second vehicle  220  may receive a notification indicating that the charging of the first vehicle  210  is ended through a connectivity service such as Blue Link™ or UVO™. 
     When charging of the first vehicle  210  is ended, the charger  200  may start charging the second vehicle  220 . When charging of the first vehicle  210  is ended, the charger  200  may start supplying power through the charging cable connected to the second vehicle  220 . When charging of the first vehicle  210  is ended, the charger  200  may charge the second vehicle  220  without a separate delay time. When the second vehicle  220  does not use the connectivity service, the charger  200  may omit a separate notification and immediately start charging the second vehicle  220 . 
     When a third vehicle  230  arrives at the charging station while the second vehicle  220  is being charged, the charging cable connected to the first vehicle  210  or another charging cable provided in the charger  200  may be connected to the third vehicle  230 . The third vehicle  230  may wait until charging of the second vehicle  220  is ended. 
       FIG.  4    is a flowchart illustrating how a vehicle charging system controls charging of a vehicle, according to an embodiment of the present disclosure. 
     In operation  405 , the first charging cable may be connected to the first vehicle. The first vehicle may arrive at the charging station first to connect the first vehicle to the charger. The first charging cable of the charger may be physically connected to the first vehicle to connect the first vehicle to the charger. 
     In operation  410 , the second charging cable may be connected to the second vehicle. The charger may have the plurality of charging cables. When the second vehicle arrives at the charging station after the first vehicle is connected to the first charging cable, the second vehicle may be connected to the second charging cable of the charger. 
     In operation  415 , the charger and the second vehicle may recognize the connection of the second vehicle. The charger may recognize that the second vehicle is connected to the second charging cable after the first vehicle is connected to the first charging cable. When the second vehicle is connected to the charger, the vehicle control apparatus of the second vehicle may recognize that there is a previously connected vehicle. 
     In operation  420 , the charger may transmit a waiting time of the second vehicle and may perform the preliminary control of the second vehicle in accordance with a charging end time of the first vehicle. The charger may transmit the charging end time of the first vehicle and the waiting time of the second vehicle to the second vehicle. The charger and/or the vehicle control apparatus of the second vehicle may perform the preliminary control of the second vehicle in accordance with the charging end time of the first vehicle. 
     The charger and/or the vehicle control apparatus of the second vehicle may perform the preliminary control of the second vehicle in accordance with the charging end time of the first vehicle. The vehicle control apparatus may perform pre-conditioning of the second vehicle in accordance with the charging end time of the first vehicle. The pre-conditioning may include an operation of controlling a state of a vehicle battery to be suitable for charging. The pre-conditioning may include an operation of increasing a charging performance of the vehicle battery. The charger and/or the vehicle control apparatus of the second vehicle may predict that charging of the second vehicle will start at the charging end time of the first vehicle and may control the battery of the second vehicle to be suitable for charging. 
     The charger and/or the vehicle control apparatus of the second vehicle may increase the temperature of the battery of the second vehicle up to a temperature in a state in which the vehicle&#39;s ignition is turned on (IG On) in accordance with the charging end time of the first vehicle. In addition, when the vehicle waits until the charging of another electric vehicle is ended to charge the vehicle, a long time may elapse in the state in which the vehicle&#39;s ignition is turned off (IG Off). When a long time elapses in the state in which the vehicle&#39;s ignition is turned off, the temperature of the vehicle battery may decrease. When the temperature of the vehicle battery decreases, the charging performance of the vehicle battery may decrease, so that the time for charging the vehicle may increase. The charger and/or the vehicle control apparatus of the second vehicle may predict that charging of the second vehicle will start at the charging end time of the first vehicle and may control the battery of the second vehicle to a temperature suitable for charging. 
     In operation  425 , when charging of the first vehicle is ended, a notification may be sent to the second vehicle and charging may be started. The charger may send the notification indicating that the charging of the first vehicle is ended. The vehicle control apparatus may switch the second vehicle to a state in which the battery is charged in response to receiving the notification indicating that the charging of the first vehicle is ended. The charger may supply power to the second vehicle after sending the notification indicating that the charging of the first vehicle is ended. 
     In operation  430 , charging information including a charging time, a charge, and a drivable distance may be transmitted. The charger may transmit the charging information to the second vehicle. The charging information transmitted to the second vehicle by the charger may be transmitted to the second vehicle, to a user&#39;s portable device of the second vehicle, or to both receiving objects. For example, the charger may transmit the charging information transmitted to the second vehicle to the vehicle control apparatus of the second vehicle, to a mobile phone of the user of the second vehicle, or to both the vehicle control apparatus and the mobile phone. 
     The charger may periodically transmit the charging information. The charging information may be transmitted from the charger and may be received to the vehicle control apparatus without a user&#39;s request. The user who has checked the charging information may determine whether to stop charging every time. 
     The charging information may include the charging time, the charge, and the drivable distance. The charging time may mean a time taken while charging is currently in progress. The charge may mean a cost according to the current charging. The drivable distance may mean a drivable distance of the second vehicle after charging. 
     In operation  435 , a charging stop request may be received from the second vehicle. The user of the second vehicle may input the charging stop request to the vehicle control apparatus of the second vehicle to stop charging. The charger may receive the charging stop request to stop charging of the second vehicle. When the charger receives the charging stop request in operation  435 , the charger may proceed to operation  455  to immediately end charging. 
     The vehicle control apparatus may determine whether a stop command for executing the charging stop request in operation  435  is performed based on the current vehicle information. The vehicle information may include a time, a charge, and a remaining distance. 
     When an urgent situation occurs in which charging should be stopped, the user may give a stop command to stop charging regardless of vehicle information. The stop command may be transmitted to the control apparatus of the second vehicle, the charging station where the charger is provided, or both receiving objects. The user may transmit the stop command using a vehicle control apparatus of the second vehicle or a portable device such as a mobile phone carried by the user. Therefore, the present disclosure is not limited to sequentially transmitting the stop command after the charger transmits the charging information in operation  430  as illustrated in  FIG.  4   , and may receive the stop command to stop charging according to an independent command system regardless of operation  430 . 
     In operation  440 , it may be recognized that charging of the second vehicle is ended. The charger and/or the vehicle control apparatus of the second vehicle may detect that the capacity of the battery of the second vehicle reaches the maximum capacity. The charger may transmit a notification indicating that charging of the battery of the second vehicle is completed. When it is recognized that charging in the second vehicle is ended in operation  440 , the charger may transmit the charging end notification to the second vehicle in operation  450 , and proceed to operation  455  to end charging. 
     In operation  445 , it may be recognized that the additional charging vehicle does not exist. The charger and/or the vehicle control apparatus of the second vehicle may obtain information from the charger that there is no more vehicles charging additionally. When it is recognized that the additional charging vehicle does not exist in operation  445 , the charger may transmit the charging end notification to the second vehicle in operation  450 , and may proceed to operation  455  to end charging. 
     In operation  460 , a time taken until the final charging of the second vehicle, a charged charge, and a drivable distance after charging may be calculated. The charger may transmit the vehicle information including the time taken until final charging, the charged charge, and the driving distance after charging to the vehicle. The charger may display the vehicle information on a display unit (e.g., a display for displaying charging progress) of the charger. 
       FIG.  5    illustrates a computing system according to an embodiment of the present disclosure. 
     Referring to  FIG.  5   , a computing system  1000  may include at least one processor  1100 , a memory  1300 , a user interface input device  1400 , a user interface output device  1500 , a storage  1600 , and a network interface  1700 , which are connected with each other via a bus  1200 . 
     The processor  1100  may be a central processing unit (CPU) or a semiconductor device that processes instructions stored in the memory  1300  and/or the storage  1600 . Each of the memory  1300  and the storage  1600  may include various types of volatile or nonvolatile storage media. For example, the memory  1300  may include a read only memory (ROM)  1310  and a random access memory (RAM)  1320 . 
     Accordingly, the operations of the method or algorithm described in connection with the embodiments disclosed in the specification may be directly implemented with a hardware module, a software module, or a combination of the hardware module and the software module, which is executed by the processor  1100 . The software module may reside on a storage medium (i.e., the memory  1300  and/or the memory  1600 ) such as a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable and programmable ROM (EPROM), an electrically EPROM (EEPROM), a register, a hard disk drive, a removable disc, or a compact disc-ROM (CD-ROM). 
     The storage medium may be coupled to the processor  1100 . The processor  1100  may read out information from the storage medium and may write information in the storage medium. Alternatively, the storage medium may be integrated with the processor  1100 . The processor and storage medium may be implemented with an application specific integrated circuit (ASIC). The ASIC may be provided in a user terminal. Alternatively, the processor and storage medium may be implemented with separate components in the user terminal. 
     Embodiments of the present disclosure may allow a vehicle to be physically connected to a charger while another electric vehicle is being charged. Accordingly, embodiments of the present disclosure may allow the charging of the vehicle to start automatically when the charging of another electric vehicle is ended, thereby reducing the waiting time for charging the vehicle. 
     In addition, embodiments of the present disclosure may control a state of the vehicle battery of the vehicle while charging another electric vehicle to be suitable for charging. Accordingly, embodiments of the present disclosure may increase the charging performance of the vehicle battery of the vehicle at the time when the charging of another electric vehicle is ended, thereby reducing the time for charging the vehicle. 
     Besides, a variety of effects directly or indirectly understood through this disclosure may be provided. 
     The above description is merely illustrative of the technical idea of the present disclosure, and those of ordinary skill in the art to which the present disclosure pertains will be able to make various modifications and variations without departing from the essential characteristics of the present disclosure. 
     Accordingly, the embodiments disclosed in the present disclosure are not intended to limit the technical idea of the present disclosure, but to explain the technical idea, and the scope of the technical idea of the present disclosure is not limited by these embodiments. The scope of protection of the present disclosure should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present disclosure.