JP2014225955A - Charge controller for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charge controller for vehicle which can contribute to theft prevention of a vehicle, while suppressing a device mounted on the vehicle from having higher price.SOLUTION: A charging ECU 6 counts the number of charging times for a battery 2 of a vehicle 1, and when the number of charging times exceeds a predetermined times, prohibits charging of the battery 2. After the prohibition of charging, operation by a user is accepted by a head unit 4, and a body ECU 7 determines whether or not the authentication information accepted matches stored authentication information. If both of the information matches, the charging ECU 6 cancels the prohibition of charging, and the battery 2 is charged with the power supplied from a power supply device 9. If the authentication processing fails or a time-out occurs without performing the authentication processing, after the charging is prohibited by the charging ECU 6, warning is performed by means of a horn 5.

Description

  The present invention relates to a vehicle charging control device that charges a battery for traveling mounted on a vehicle such as an electric vehicle or a hybrid vehicle with electric power from a power supply device installed at a charging station or the like.

  In recent years, vehicles (so-called plug-in vehicles) such as electric vehicles or hybrid vehicles that travel by storing electric power supplied from an external power supply device in a battery and driving a motor with the electric power stored in the battery have begun to spread. Yes. The power supply device is installed in a charging station or a home parking lot, for example, and the battery is charged by connecting the power supply device and the vehicle with a charging cable.

  Patent Document 1 proposes a charging system that can easily track a vehicle when the vehicle is stolen. In this charging system, a desk lamp for charging a vehicle battery is connected to a vehicle registration server via a network. When charging by connecting a vehicle to a table lamp, the table lamp acquires a unique ID (IDentifier) code from the vehicle and checks whether or not this ID code is registered in the vehicle registration server. When the ID code is registered, the charging stand is in a charging permission state, and charging of the vehicle is started. If the ID code is not registered, charging of the charging stand is prohibited.

JP 2008-42984 A

  However, in the charging system described in Patent Document 1, since the charging stand needs to acquire an ID code from the vehicle, a function of performing advanced communication between the charging stand and the vehicle is required. For this reason, there has been a problem that an increase in the price of the device for charging control mounted on the vehicle and an increase in the cost of installing the power supply device in the charging stand occur.

  The present invention has been made in view of such circumstances, and an object of the present invention is for a vehicle that can contribute to prevention of theft of a vehicle while suppressing an increase in the price of a device mounted on the vehicle. The object is to provide a charge control device.

  The vehicle charging control device according to the present invention is a vehicle charging control device comprising charging means for charging the battery of the vehicle with electric power supplied from outside the vehicle, and counts the number of times the battery is charged by the charging means. A charging prohibiting unit for prohibiting charging of the battery by the charging unit, a receiving unit for receiving an operation on the operation unit, and an operation received by the receiving unit. And a canceling unit for canceling the prohibition of charging by the charging prohibiting unit.

  Further, the vehicle charging control device according to the present invention is based on the storage unit storing the release information related to the release of the release unit, the release information stored in the storage unit, and the operation received by the reception unit. It further comprises release determination means for determining whether or not to perform release by the charge prohibition means.

  Further, in the vehicle charging control device according to the present invention, the accepting unit accepts an input of information by an operation on the operation unit, and the release determining unit releases the information received by the accepting unit in the storage unit. It is characterized in that it is determined whether or not to release by the charging prohibiting means depending on whether or not the information is information.

  In the vehicle charge control device according to the present invention, the vehicle includes a plurality of operation units, and the storage unit stores a predetermined operation procedure for the operation unit, and the release The determining means determines whether or not to release the charging prohibiting means according to whether or not the operation procedure received by the receiving means is a predetermined operation procedure stored in the storage unit. It is characterized by being.

  Further, the vehicle charge control device according to the present invention is based on a connection unit that connects an update device that updates release information stored in the storage unit, and information provided from the update device connected to the connection unit, Update means for updating release information stored in the storage unit is further provided.

  The vehicle charging control device according to the present invention further includes connection detection means for detecting connection of a power supply cable to the vehicle, and the counting means counts the number of connections detected by the connection detection means. It is made to do so.

  In the vehicular charging control apparatus according to the present invention, the cable includes a signal line for transmitting and receiving a control signal related to power supply, and the connection detection unit detects connection according to a potential change of the signal line. It is made to do so.

  In addition, the vehicle charge control device according to the present invention further includes notification means for performing notification when the charge prohibition means prohibits charging.

In the present invention, the number of times of charging the vehicle battery for traveling is counted, and charging of the battery is prohibited according to the number of times of charging. For example, when the number of times of charging reaches a predetermined number such as 5 times or 10 times, charging of the battery is prohibited. After the charging is prohibited, the user's operation is accepted, and the charging prohibition is canceled according to the accepted operation.
Thereby, for example, when the vehicle is stolen and the charging of the vehicle reaches a predetermined number of times, the charging of the vehicle can be prohibited. In order to cancel the charge prohibition, it is necessary to perform an operation on the operation unit, and a thief who does not know the release method cannot cancel the charge prohibition. Therefore, since charging of the battery with respect to the stolen vehicle can be limited, theft of the vehicle can be suppressed.

Further, in the present invention, release information related to release of charge prohibition is stored in the storage unit. Based on the stored release information and the operation received by the operation unit, it is determined whether or not to release the charge prohibition.
For example, the release information can be a user ID and a password. In order to cancel charging prohibition, the user performs an operation of inputting a user ID, a password, and the like using a keyboard or a touch panel provided near the driver's seat of the vehicle. It is determined whether or not the charging prohibition is canceled depending on whether or not the input information matches the stored cancellation information.
In addition, various operation units provided in the vehicle such as a steering wheel, a brake, a shift lever, a wiper switch, a light lighting switch, an air conditioner switch, or an audio device switch for releasing charging prohibition. It can be set as the structure which performs operation with respect to. For example, the user performed a predetermined operation procedure such as stepping on the brake twice, turning on the wiper switch, turning on the light switch, turning off the wiper switch, and turning off the wiper switch after stepping on the brake once. In case, the prohibition of charging is released. This operation procedure is stored in the storage unit as release information.
As a result, it becomes difficult for a vehicle theft person to perform a charge prohibition canceling operation.

Moreover, in this invention, it is set as the structure which connects an update apparatus in order to update the cancellation | release information memorize | stored in the memory | storage part. The release information cannot be updated only by an operation on the operation unit provided in the vehicle. The update device can be provided, for example, in a vehicle dealer or a maintenance shop.
Thereby, since the person who does not have the update device cannot update the release information, it can be difficult for the vehicle theft person to update the release information.

Further, in the present invention, when the power supply device outside the vehicle and the vehicle are connected with a power supply cable for charging the battery, the connection of the cable is detected, and the number of times of connecting the cable is counted as the number of times of charging. .
For example, some power supply cables include a signal line for transmitting and receiving a control signal for charge control in addition to the power line. Therefore, it can be configured to detect the connection of the cable by detecting the potential change of the signal line.
As a result, the number of times of charging can be easily and reliably performed.

  Moreover, in this invention, it alert | reports when charging of a battery is prohibited according to the frequency | count of charge. The notification can be performed, for example, by driving a vehicle light or a horn. The notification may be performed not immediately after prohibiting the charging of the battery but after a predetermined time (for example, 5 minutes or 10 minutes) has elapsed since the prohibition. Accordingly, it is possible to notify the vehicle theft and to suppress the vehicle theft.

  In the case of the present invention, the charging of the battery to the stolen vehicle can be restricted by prohibiting charging according to the number of times the vehicle battery is charged and releasing the charging prohibition according to the user's operation. , Vehicle theft can be suppressed. Further, in this configuration, since it is not necessary for the vehicle or the power supply device to communicate with the server device or the like, it can be realized at low cost.

It is a schematic diagram which shows the structure of the charging control apparatus for vehicles which concerns on this Embodiment. It is a block diagram which shows the structure of charge ECU which concerns on this Embodiment. It is a wave form diagram which shows an example of a CPLT signal. It is a block diagram which shows the structure of body ECU which concerns on this Embodiment. It is a flowchart which shows the procedure of the process which charge ECU performs. It is a flowchart which shows the procedure of the process which charge ECU performs. It is a flowchart which shows the procedure of the process which body ECU performs. It is a block diagram which shows the structure of body ECU which concerns on a modification.

  Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof. FIG. 1 is a schematic diagram showing a configuration of a vehicle charging control apparatus according to the present embodiment. In the figure, reference numeral 1 denotes a vehicle, and the vehicle 1 is an electric vehicle or a hybrid vehicle that travels by driving a motor (not shown) with electric power charged in a battery 2. The vehicle 1 can charge the battery 2 with electric power supplied from a power supply device 9 installed in a charging station or the like. The vehicle 1 and the power feeding device 9 are connected via a charging cable 8, and the vehicle 1 includes an inlet 3 for connecting the charging cable 8.

  The charging cable 8 includes, for example, two power lines for supplying power and a signal line for transmitting a control pilot (CPLT) signal for performing charging control between the power supply device 9 and the vehicle 1. . When the charging cable 8 is connected to the inlet 3, electric power and a CPLT signal from the power feeding device are given from the inlet 3 to a charging ECU (Electronic Control Unit) 6 of the vehicle 1. The inlet 3 is provided with a switch for detecting the connection of the charging cable 8, and a switch (SW) signal indicating the on / off state of the switch is given from the inlet 3 to the charging ECU 6.

  The charging ECU 6 starts the operation when the connection of the charging cable 8 is notified by the SW signal from the inlet 3. The charging ECU 6 determines characteristics such as a voltage value and a frequency of the supplied power based on the CPLT signal from the power supply device 9. The charging ECU 6 converts AC power supplied from the power supply device 9 into DC power having a voltage value suitable for the battery 2. The charging ECU 6 performs charging by supplying the converted DC power to the battery 2. The charging ECU 6 manages the charging rate of the battery 2 and performs processing such as instructing the power supply device 9 to stop power supply when the battery 2 is fully charged.

  The vehicle 1 includes a head unit 4, a horn 5, a body ECU 7, and the like. The head unit 4 is an apparatus that is disposed in the vicinity of the driver's seat of the vehicle 1 and includes an operation unit that receives a user operation and a display unit that displays a message and the like. The display unit of the head unit 4 can be configured using, for example, a liquid crystal panel. The operation unit of the head unit 4 may be configured using, for example, a plurality of keys or switches, or may be configured using a touch panel. The head unit 4 notifies the operation received by the operation unit to the body ECU 7 and displays the display unit in response to an instruction from the body ECU 7. The horn 5 is a device that emits a warning sound, and operates according to the control of the body ECU 7.

  The body ECU 7 controls operations of the head unit 4 and the horn 5, and controls operations of various devices mounted on the vehicle 1, such as lamps, wipers, door locks or windows. The body ECU 7 can transmit and receive data to and from the charging ECU 6. As a result, the charging ECU 6 can obtain information related to the operation accepted by the head unit 4 via the body ECU 7, and can drive the horn 5 to generate a warning sound.

  Thus, the vehicle charge control device according to the present embodiment includes a plurality of devices such as the charge ECU 6 and the body ECU 7. However, the vehicle charging control device may be configured as one device, and may be configured such that one device has functions distributed to the charging ECU 6, the body ECU 7, and the like. Conversely, the function may be distributed to more devices.

  FIG. 2 is a block diagram showing a configuration of charging ECU 6 according to the present embodiment. The charging ECU 6 includes a control unit 60, a power conversion unit 61, an input unit 62, a CPLT circuit 63, a communication unit 64, and the like. The control unit 60 is configured using an arithmetic processing device such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control unit 60 executes a control program stored in a ROM (Read Only Memory) or the like, thereby controlling the operation of each unit in the charging ECU 6 and performing a control process related to charging of the battery 2.

  The power conversion unit 61 is connected to the inlet 3 through a power line, and is supplied with power from the power supply device 9 when the charging cable 8 is connected. In the present embodiment, it is assumed that the power feeding device 9 supplies AC power. The power conversion unit 61 converts AC power supplied from the power supply device 9 into a DC voltage having a voltage value according to the control of the control unit 60 and outputs the DC voltage to the battery 2.

  The input unit 62 receives the SW signal from the inlet 3. For example, the SW signal can be a binary signal that is at a low level when the charging cable 8 is not connected to the inlet 3 and is at a high level when the charging cable 8 is connected. The input unit 62 notifies the control unit 60 when the value of the SW signal changes. The communication unit 64 performs communication with the body ECU 7 based on a communication standard such as CAN (Controller Area Network). The communication unit 64 transmits information given from the control unit 60 to the body ECU 7, receives information from the body ECU 7, and gives it to the control unit 60.

  The CPLT circuit 63 receives a CPLT signal from the power feeding device 9 via the inlet 3 and the charging cable 8. The CPLT signal is a pulse signal, and the CPLT circuit 63 can determine the characteristics (voltage, current, frequency, etc.) of the power supplied from the power supply device 9 based on the duty ratio of the CPLT signal. The CPLT circuit 63 notifies the control unit 60 of the characteristics of the supplied power based on the CPLT signal. The CPLT circuit 63 can change the potential (maximum potential or amplitude) of the CPLT signal. The CPLT circuit 63 changes the potential of the CPLT signal according to the control of the control unit 60, thereby notifying the power feeding device 9.

  FIG. 3 is a waveform diagram showing an example of a CPLT signal. In this figure, the waveform of the CPLT signal input to the charging ECU 6 when the horizontal axis is time t and the vertical axis is the potential V is indicated by a bold line. At point A (t = 0), it is assumed that the power is supplied to the charging ECU 6, and the charging cable 8 is not connected to the inlet 3 at this time. In this state, the potential of the signal line for the CPLT signal provided between the inlet 3 and the charging ECU 6 is V1. When the charging cable 8 is connected to the inlet 3 and the transmission path of the CPLT signal between the power feeding device 9 and the charging ECU 6 is established, the potential of the CPLT signal changes to V2 as shown at point B.

  Thereafter, as shown in section C, the power feeding device 9 changes the CPLT signal at a duty ratio corresponding to the characteristics of the supplied power. The charging ECU 6 determines the characteristics of the power supplied from the power supply device 9 based on the duty ratio of the CPLT signal, and performs conversion setting of the power conversion unit 61 to prepare for charging. After the preparation for charging is completed, the charging ECU 6 causes the CPLT circuit 63 to change the maximum potential of the CPLT signal from V2 to V3. The power supply device 9 determines that the preparation for charging of the charging ECU 6 is completed due to the change in the maximum potential of the CPLT signal, and starts supplying power. Thus, the power transmission device 9 controls the duty ratio of the CPLT signal and the charge ECU 6 controls the potential of the CPLT signal, whereby information transmission between the power supply device 9 and the charge ECU 6 can be realized with a simple configuration.

  FIG. 4 is a block diagram showing a configuration of body ECU 7 according to the present embodiment. The body ECU 7 includes a control unit 70, a storage unit 71, an output unit 72, communication units 73 and 74, a connection unit 75, and the like. The control unit 70 is configured using an arithmetic processing device such as a CPU or MPU. The control unit 70 executes the control program stored in the storage unit 71 or other ROM or the like, thereby controlling the operation of each unit in the body ECU 7 and controlling the operation of various devices mounted on the vehicle 1. .

  The memory | storage part 71 is comprised using non-volatile memory elements, such as EEPROM (Electrically Erasable Programmable ROM) or flash memory. The storage unit 71 stores various information including authentication information 71a. The storage unit 71 may store a program executed by the control unit 70. In the present embodiment, the authentication information 71a is a so-called password that is a character string that is input in order to cancel the charging prohibited state (details will be described later).

  The output unit 72 is connected to the horn 5 of the vehicle 1 and outputs a drive signal to the horn 5 in accordance with the control of the control unit 70. The communication unit 73 performs communication with the charging ECU 6 based on a communication standard such as CAN. The communication unit 74 communicates with the head unit 4 based on a communication standard such as CAN. The body ECU 7 may be configured to communicate with the charging ECU 6 and the head unit 4 with one communication unit, instead of individually including the communication units 73 and 74.

  The connection unit 75 has a connector to which a communication cable or the like is connected, and an external device can be connected through the communication cable or the like. In the present embodiment, by connecting the setting device 79 to the connection unit 75 of the body ECU 7, the authentication information 71a is written to the storage unit 71, the authentication information 71a stored in the storage unit 71 is updated, and the like. it can. The setting device 79 is not a device that the user of the vehicle 1 has, but is a device provided in, for example, a dealer of the vehicle 1 or a maintenance factory.

  The setting of the authentication information 71a using the setting device 79 is performed by the following procedure, for example. An operator connects the setting device 79 to the connection portion 75 of the body ECU 7 of the vehicle 1 via a communication cable or the like at a dealer or a maintenance factory. The worker inputs authentication information such as an ID and a password for setting the authentication information 71 a to the setting device 79. The authentication information input by the operator is different from the authentication information 71a stored in the storage unit 71 of the body ECU 7. It is desirable that the user of the vehicle 1 does not know this authentication information. After the input of authentication information by the operator is normally completed, the user of the vehicle 1 inputs authentication information such as an ID and a password to the setting device 79. The authentication information input by the user may be the same as or different from the authentication information 71 a stored in the storage unit 71 of the body ECU 7, but an operator who uses the setting device 79 uses this authentication information. It is desirable not to know. After the input of authentication information by the user is completed normally, the setting device 79 is in a state where it can accept the authentication information newly stored in the storage unit 71. When the user of the vehicle 1 inputs new authentication information to the setting device 79 and gives an update instruction, the setting device 79 starts an update process of the authentication information 71a. The setting device 79 gives the input new authentication information to the body ECU 7 together with a write command and the like. The control unit 70 of the body ECU 7 writes the authentication information given from the setting device 79 in the storage unit 71.

  The vehicle charging control system according to the present embodiment has a function of restricting charging to the battery 2 when the vehicle 1 is stolen. In order to realize this charge limiting function, the control unit 60 of the charging ECU 6 has a counter for counting the number of times the battery 2 has been charged. The initial value of this counter is 0, and is counted up each time the battery 2 is charged (that is, the value is incremented by 1). After the notification that the charging cable 8 is connected is given from the input unit 62, the control unit 60 is charged when the potential of the CPLT signal changes from V1 to V2 as shown at point B in FIG. It is judged that it was done, and the counter is counted up.

  In this way, the counter is counted up, and when the value of the counter reaches a predetermined value (for example, 10), the control unit 60 prohibits charging of the battery 2. In the charging prohibited state, the control unit 60 does not change the CPLT signal from the potential V2 to V3 by the CPLT circuit 63 as shown at point D in FIG. 3, and charging the battery 2 is not started. At this time, the control unit 60 gives an instruction to perform an authentication process from the communication unit 64 to the body ECU 7.

  The body ECU 7 to which the authentication processing instruction is given gives a message display instruction to the head unit 4. Thereby, the head unit 4 displays a message indicating that the input of authentication information is necessary for charging the battery 2 on the display unit, and accepts the input of authentication information at the operation unit. When receiving authentication information input by a user operation on the operation unit, the head unit 4 gives the received authentication information to the body ECU 7. The body ECU 7 to which the authentication information is given from the head unit 4 determines whether or not this authentication information matches the authentication information 71 a stored in the storage unit 71. When the authentication information matches, the control unit 70 of the body ECU 7 notifies the charging ECU 6 that the authentication process has been successful through the communication unit 73. If the authentication information does not match, the control unit 70 notifies the charging ECU 6 that the authentication process has failed, and outputs a drive signal from the output unit 72 to output a warning sound by the horn 5. However, when the authentication information does not match, the control unit 70 may repeat acceptance of re-input of the authentication information a predetermined number of times (for example, three times). The control unit 70 also notifies that the authentication process has failed and a warning by the horn 5 even when a predetermined time (for example, 5 minutes or 10 minutes) has passed without the authentication information being input by the head unit 4. Output sound.

  When the notification that the authentication information is successful is given from the body ECU 7, the control unit 60 of the charging ECU 6 resets the counter and cancels the prohibition of charging. That is, the control unit 60 changes the CPLT signal from the potential V2 to V3 by the CPLT circuit 63, notifies the power supply device 9 of the completion of charging preparation, and starts charging the battery 2. When the notification that the authentication information has failed is given from the body ECU 7, the control unit 60 of the charging ECU 6 continues to prohibit charging and gives an instruction to stop power feeding to the power feeding device 9. For example, the power supply stop instruction can be performed by changing the potential of the CPLT signal from V2 to a predetermined potential (a potential other than V3).

  Next, a procedure of processing performed by the charging ECU 6 and the body ECU 7 of the vehicle charging system according to the present embodiment will be described. 5 and 6 are flowcharts showing a procedure of processing performed by the charging ECU 6. The control unit 60 of the charging ECU 6 determines whether or not the charging cable 8 is connected to the inlet 3 of the vehicle 1 in response to the notification from the input unit 62 (step S1). When the charging cable 8 is not connected (S1: NO), the control unit 60 stands by until the charging cable 8 is connected. When charging cable 8 is connected (S1: YES), control unit 60 determines whether or not the potential of the CPLT signal is V2 in CPLT circuit 63 (step S2). When the potential of the CPLT signal is not V2 (S2: NO), the control unit 60 waits until the potential of the CPLT signal changes from V1 to V2.

  When the potential of the CPLT signal is V2 (S2: YES), the control unit 60 counts up the counter (step S3), and determines whether the number of times of charging counted by the counter has exceeded a predetermined number (step S3). S4). If the number of times of charging does not exceed the predetermined number of times (S4: NO), the control unit 60 prepares for charging, such as setting the operating conditions of the power conversion unit 61 according to the characteristics of the supplied power based on the duty ratio of the CPLT signal (Step S5). After the preparation is completed, the control unit 60 changes the potential of the CPLT signal from V2 to V3 in the CPLT circuit 63, thereby notifying the power feeding device 9 that the charging preparation is complete (step S6). In response to this notification, the control unit 60 starts charging the battery 2 with the electric power supplied from the power supply device 9 (step S7).

  The controller 60 monitors the charging rate of the battery 2 and determines whether or not the battery 2 is fully charged (step S8). When the battery 2 is not fully charged (S8: NO), the control unit 60 stands by until it is fully charged. In addition, before the battery 2 is fully charged, the charging of the battery 2 may be terminated in accordance with a user operation. When the battery 2 is fully charged (S8: YES), the controller 60 notifies the power supply device 9 of the end of charging by changing the potential of the CPLT signal to another potential in the CPLT circuit 63 (step S9). The process is terminated.

  If the number of times of charging counted by the counter exceeds the predetermined number of times (S4: YES), the control unit 60 prohibits charging of the battery 2 (step S10), and the communication unit 64 performs an authentication process on the body ECU 7. An instruction to perform is transmitted (step S11). Control unit 60 determines whether or not the authentication result transmitted from body ECU 7 has been received in response to this instruction (step S12). When the authentication result has not been received (S12: NO), the control unit 60 stands by until the authentication result is received.

  When the authentication result is received from the body ECU 7 (S12: YES), the control unit 60 determines whether or not the received authentication result is an authentication success (step S13). If the authentication result is authentication success (S13: YES), the control unit 60 cancels the charging prohibition of the battery 2 (step S14), resets the counter (step S15), proceeds to step S5, and proceeds to the battery. 2 is charged. When the authentication result is authentication failure (S13: NO), the control unit 60 instructs the power supply apparatus 9 to stop power supply by changing the potential of the CPLT signal to another potential in the CPLT circuit 63 (step S16). ), The process is terminated.

  FIG. 7 is a flowchart showing a procedure of processing performed by the body ECU 7. In FIG. 7, the procedure for the authentication process related to the charging of the battery 2 is shown, and the illustration and description of the procedure of other processes performed by the body ECU 7 are omitted. The control unit 70 of the body ECU 7 determines whether or not the communication unit 73 has received an instruction to perform an authentication process from the charging ECU 6 (step S21). When the authentication processing instruction is not received (S21: NO), the control unit 70 waits until the authentication processing instruction is received.

  When the authentication processing instruction is received (S21: YES), the control unit 70 transmits an instruction to display a message prompting the user to input authentication information from the communication unit 74 to the head unit 4 (step S22). . In response to this instruction, a message is displayed on the display unit of the head unit 4, input of authentication information is accepted in response to a user operation on the operation unit, and the accepted authentication information is transmitted from the head unit 4 to the body ECU 7. The The control unit 70 of the body ECU 7 determines whether or not the authentication information transmitted from the head unit 4 has been received by the communication unit 74 (step S23). When the authentication information has not been received (S23: NO), the control unit 70 determines whether or not a timeout has occurred due to the elapse of a predetermined time from the instruction transmission in step S22 (step S24). When the timeout has not occurred (S24: NO), the control unit 70 returns the process to step S23.

  When the authentication information is received from the head unit 4 (S23: YES), the control unit 70 reads the authentication information 71a stored in the storage unit 71 (step S25). The control unit 70 determines whether or not the authentication information received from the head unit 4 matches the authentication information 71a read from the storage unit 71 (step S26). When both authentication information corresponds (S26: YES), the control part 70 transmits the notification to the effect that the authentication process was successful to charge ECU6 in the communication part 73 (step S27), and complete | finishes a process.

  Further, when a timeout occurs in step S24 (S24: YES), or when the authentication information does not match in step S26 (S26: NO), the control unit 70 communicates a notification that the authentication process has failed. It transmits to charge ECU6 in the part 73 (step S28). The control unit 70 outputs a warning signal by the horn 5 by outputting a drive signal at the output unit 72 (step S29), and ends the process.

  In the vehicle charging system configured as described above, the charging ECU 6 counts the number of times of charging the battery 2 of the vehicle 1 and prohibits charging of the battery 2 when the number of times of charging exceeds a predetermined number. After charging is prohibited, the user operation is accepted by the head unit 4, and the body ECU 7 determines whether or not the accepted authentication information matches the authentication information 71 a stored in the storage unit 71. When both authentication information corresponds, charge ECU6 cancels charge prohibition, and charges battery 2 with the electric power supplied from the electric power feeder 9. FIG. Thereby, for example, when the vehicle 1 is stolen and the vehicle 1 is charged a predetermined number of times, the charging of the battery 2 can be prohibited. In order to cancel the charging prohibition, it is necessary to operate the head unit 4 to input correct authentication information, and a thief who does not know the authentication information 17a cannot cancel the charging prohibition. Therefore, since charging of the battery 2 with respect to the stolen vehicle can be limited, the theft of the vehicle 1 can be suppressed.

  Further, in the vehicle charging system, in order to update the authentication information 71 a stored in the storage unit 71 of the body ECU 7, a setting device 79 is connected to the connection unit 75 via a communication cable or the like. It is necessary to update 71a. The setting device 79 is provided in, for example, a dealer of the vehicle 1 or a maintenance shop. In the update work, input of authentication information by an operator such as a dealer or a maintenance shop and input of authentication information by a user of the vehicle 1 are required, and when the correct authentication information is not input, the setting device 79 The update work by cannot be performed. Accordingly, a person who does not have the setting device 79 or a person who does not know the authentication information cannot update the authentication information 71a, so that it is difficult for the thief of the vehicle 1 to update the authentication information 71a.

  Further, the charging ECU 6 detects the connection of the charging cable 8 when the charging cable 8 of the power feeding device 9 is connected to the inlet 3 for charging the battery 2, and the number of connections of the charging cable 8 is determined by charging the battery 2. Count as a count. At this time, the charging ECU 6 detects the change of the SW signal from the inlet 3 and the potential change of the CPLT signal supplied from the power supply device 9 via the charging cable 8 to detect the connection of the charging cable 8. Thus, the charging ECU 6 can easily and reliably count the number of times of charging.

  In the vehicle charging system, after the charging ECU 6 prohibits charging, the horn 5 gives a warning when the authentication process fails or the authentication process is not performed and a time-out occurs. As a result, the theft of vehicle 1 can be notified and the theft of vehicle 1 can be suppressed.

  In the present embodiment, the charging ECU 6 and the body ECU 7 cooperate to perform processing related to prohibiting and releasing the charging of the battery 2, but the present invention is not limited to this. For example, when the charge ECU 6 can directly control the head unit 4, the horn 5, and the like, the charge ECU 6 may store the authentication information 17a, and the charge ECU 6 may perform the authentication process. The procedure for updating the authentication information 17a using the setting device 79 is an example, and is not limited to the above-described procedure.

  Further, although the connection detection of the charging cable 8 is performed based on both the change of the SW signal from the inlet 3 and the potential change of the CPLT signal, the present invention is not limited to this. It is good also as a structure which detects the connection of the charging cable 8 based on either one of the change of SW signal from the inlet 3, or the electric potential change of a CPLT signal. Moreover, although it set as the structure which counts the frequency | count that the charging cable 8 was connected as a frequency | count of charging, it is not restricted to this. For example, the number of times that power is actually supplied from the power supply device 9 may be set as the number of times of charge, for example, the number of times that the battery 2 is fully charged may be set as the number of times of charge, and the number of times other conditions occur may be set as the number of times of charge. Good. Moreover, although it was set as the structure which alert | reports with the horn 5, it does not restrict to this. For example, the notification may be performed by other methods such as blinking the headlight of the vehicle 1.

  In addition, although the authentication information such as the ID and password is input by the head unit 4 to cancel the charging prohibition, the configuration is not limited to this. For example, the configuration may be such that biometric authentication such as fingerprint authentication or vein authentication is performed to cancel the charging prohibition, or the charging prohibition may be canceled by other methods. Moreover, it is good also as a structure which cancels | releases charge prohibition with the method shown in the following modifications.

(Modification)
FIG. 8 is a block diagram illustrating a configuration of a body ECU 107 according to a modification. The body ECU 107 according to the modification includes an operation state acquisition unit 176 that acquires operation states of various operation members mounted on the vehicle 1. The operation state acquisition unit 176 can acquire operation states of the steering wheel 104a, the brake 104b, the shift lever 104c, the wiper switch 104d, the light switch 104e, and the air conditioner switch 104f, for example. The operation state acquisition unit 176 notifies the control unit 170 of the acquired operation state.

  The body ECU 107 according to the modification stores operation procedure information 171 a in the storage unit 71. The operation procedure information 171a includes, for example, stepping on the brake 104b twice, turning on the wiper switch 104d, turning on the light switch 104e, turning off the wiper switch 104d, turning off the light switch 104e after stepping on the brake 104b once, etc. The predetermined operation procedure is stored.

  When receiving an instruction to perform an authentication process from the charging ECU 6, the control unit 170 of the body ECU 107 according to the modified example displays a message on the display unit or the like so as to perform a predetermined operation on the operation member of the vehicle 1, for example, to the user. Request. Thereafter, the control unit 170 determines whether or not the change in the operation state acquired by the operation state acquisition unit 170 matches the procedure of the operation procedure information 171a stored in the storage unit 71, that is, a predetermined operation by the user. It is determined whether or not. When a predetermined operation is performed, the control unit 170 notifies the charging ECU 6 of successful authentication. When the predetermined operation is not performed, the control unit 170 notifies the charging ECU 6 of the authentication failure. The operation procedure information 171 a stored in the storage unit 71 can be updated by connecting the setting device 79 to the connection unit 75.

  In the vehicle charging system according to the modified example of the above configuration, instead of inputting authentication information such as an ID and a password, the user operates the operation member mounted on the vehicle 1 according to a predetermined operation procedure. The charging prohibition by the charging ECU 6 is canceled. Thereby, since it is not necessary to mount the apparatus for inputting authentication information in the vehicle 1, a vehicle charging system can be reduced in cost.

  The above-described operation procedure for canceling the prohibition of charging is an example, and the present invention is not limited to this. Further, a method of canceling charging prohibition by a predetermined operation procedure for the operation member of the vehicle 1 and a method of canceling charging prohibition by inputting authentication information such as an ID and a password may be used in combination.

1 vehicle 2 battery 3 inlet 4 head unit (operation unit, receiving means)
5 Horn (notification means)
6 Charging ECU (charging means, counting means, charging prohibition means, release means, connection detection means)
7 body ECU (release determination means, update means, notification means)
8 Charging cable 9 Power feeding device 60 Control unit (counting means, charging prohibiting means, releasing means, connection detecting means)
61 Power converter (charging means)
62 Input section (connection detection means)
63 CPLT circuit (connection detection means)
64 communication unit 70 control unit (release determination unit, update unit, notification unit)
71 Storage Unit 71a Authentication Information (Release Information)
72 Output unit 73, 74 Communication unit 75 Connection unit 79 Setting device (update device)
104a Steering wheel (operation part)
104b Brake (operation part)
104c Shift lever (operation unit)
104d Wiper switch (operation unit)
104e Light switch (operation unit)
104f Air conditioner switch (operation part)
107 body ECU (release determination means)
170 Control unit (release determination means, update means, notification means)
171a Operation procedure information 176 Operation state acquisition unit

Claims (8)

In the vehicle charging control device comprising charging means for charging the vehicle battery with electric power supplied from outside the vehicle,
Counting means for counting the number of times the battery is charged by the charging means;
Charging prohibiting means for prohibiting charging of the battery by the charging means according to the number of times of charging counted by the counting means;
Accepting means for accepting an operation on the operation unit;
A vehicle charge control apparatus comprising: a release unit that cancels the prohibition of charging by the charging prohibiting unit in response to an operation received by the receiving unit. A storage unit that stores release information related to the release of the release means;
The release determination unit for determining whether or not to release by the charging prohibition unit based on the release information stored in the storage unit and the operation received by the reception unit, further comprising: The vehicle charging control device described. The accepting means accepts input of information by operating the operation unit,
The release determination means determines whether or not to release by the charge prohibition means depending on whether or not the information received by the reception means is release information stored in the storage unit. The vehicle charge control device according to claim 2. The vehicle is provided with a plurality of operation units,
The storage unit stores a predetermined operation procedure for the operation unit,
The release determination unit determines whether or not to release by the charge prohibition unit depending on whether or not the operation procedure received by the reception unit is a predetermined operation procedure stored in the storage unit. The vehicle charging control device according to claim 2 or 3, wherein the vehicle charging control device is configured as described above. A connection unit that connects an update device that updates release information stored in the storage unit;
The update means which updates the cancellation | release information memorize | stored in the said memory | storage part based on the information given from the update apparatus connected to this connection part, The any one of Claim 2 thru | or 4 characterized by the above-mentioned. The vehicle charging control device according to claim 1. A connection detecting means for detecting connection of a power supply cable to the vehicle;
The vehicle charge control device according to any one of claims 1 to 5, wherein the counting unit counts the number of connections detected by the connection detection unit. The cable includes a signal line for transmitting and receiving a control signal related to power supply,
The vehicle charge control device according to claim 6, wherein the connection detection means detects a connection in accordance with a change in potential of the signal line. The vehicle charge control device according to any one of claims 1 to 7, further comprising a notification unit configured to notify when the charge prohibition unit prohibits charging.

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