VEHICLE

Abstract

A vehicle (1) configured to perform an external charging operation using an electric current supplied from a power supply (500) outside the vehicle (1) through a charging cable (400) to charge an energy storage device (100) installed in the vehicle (1), the vehicle (1) comprising: an input (220) connectable to a connector (410) arranged in the charging cable (400); a locking device (50) configured to switch between a locking state and an unlocking state, wherein the connector (410) connected to the input (220) is not removable from the input (220) in the locking state, wherein the connector (410) connected to the input (220) is removable from the input (220) in the unlocking state; and a control device (300) configured to allow the external charging process when the locking device (50) is in the locking state, wherein the control device (300), when it detects that the connector (410) is connected to the input (220), puts the locking device (50) into the locking state, the control device (300) sets the locking device (50) to the unlocking state and stops the external charging process when a predetermined operation is carried out during the external charging process, and the control device (300) sets the locking device (50) to the locking state and resumes the external charging process if a predetermined resumption condition is met within a predetermined period of time after the external charging process has stopped and the connector (410) is connected to the input (220), characterized in that: the resumption condition comprises at least one of a condition that a door (170) of the vehicle (1) has been opened and a condition that the door of the vehicle (1) has been closed.

Description

[0001] This final application is based on Japanese Patent Application No. 2019-185830 (JP 2021 - 61 713 A), filed on October 9, 2019, in the Japan Patent Office, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to a vehicle that performs an external charging operation to charge an energy storage device installed in the vehicle using an electric power supplied from a power supply outside the vehicle. Description of the state of the art

[0003] US 2015 / 0 061 594 A1 discloses a vehicle that performs alternating current (AC) charging (hereafter referred to as AC charging) for charging an energy storage device installed in the vehicle using an electric current supplied from an AC power supply external to the vehicle via a charging cable. The vehicle includes an input connectable to a connector disposed at one end of the charging cable, and a locking device that switches between a locking state in which the connector connected to the input cannot be removed from the input, and an unlocking state in which the connector connected to the input can be removed from the input.The locking device is moved or set from the locked state to the unlocked state in response to an operation of a release switch of a smart key or the like of the vehicle. Hereinafter, the setting of the locking device from the locked state to the unlocked state may be referred to as "unlocking."

[0004] If an unlocking operation is performed during AC charging, the vehicle will stop the AC charging process. If the connector is not disconnected from the input within a certain period of time after the AC charging process has stopped, the vehicle will return the locking device to the locked state and resume the AC charging process.

[0005] A user may perform an unlocking operation with the intention of terminating the AC charging process. In this case, it may not be possible to disconnect the connector from the input within the predetermined time period for various reasons. In the case described above, the vehicle disclosed in US 2015 / 0 061 594 A1 resumes the AC charging process even though the user does not intend to continue the AC charging process.

[0006] The present disclosure has been made to solve the above-described problem, and an object of the present disclosure is to provide a vehicle that can resume and terminate external charging based on a user's intention when the external charging is stopped.

[0007] A vehicle having the features of the preamble of claim 1 is disclosed in the above-mentioned US 2015 / 0 061 594 A1. Advantageous further developments are defined in the subclaims.

[0008] For a better understanding of the present invention, reference is further made to DE 10 2010 009 715 A1, which discloses a “method for charging a battery of a motor vehicle, as well as in a motor vehicle”, and DE 10 2014 209 210 A1, which discloses a “control of a locking device of an electrical charging connection”. (1) A vehicle according to the present disclosure is a vehicle capable of performing external charging using an electric power supplied from a power supply outside the vehicle through a charging cable to charge an energy storage device installed in the vehicle.The vehicle comprises: an input connectable to a connector disposed in the charging cable; a locking device capable of switching between a locking state and an unlocking state, wherein the connector connected to the input is not removable from the input in the locking state, wherein the connector connected to the input is removable from the input in the unlocking state; and a control device capable of permitting the external charging operation when the locking device is in the locking state. When the control device detects that the connector is connected to the input, the control device sets the locking device to the locking state.If a predetermined operation is performed during the external charging process, the control device sets the locking device to the unlocked state and stops the external charging process. If a predetermined resumption condition is met within a predetermined period of time after the external charging process is stopped and the connector is connected to the input, the control device sets the locking device to the locked state and resumes the external charging process. The vehicle is characterized in that the resumption condition includes at least one of a condition that a door of the vehicle has been opened and a condition that the door of the vehicle has been closed.

[0009] With the configuration described above, external charging is resumed when the resumption condition is met and the connector is connected to the input within the specified time period after the external charging is stopped. For resuming external charging, in addition to determining whether the connector is connected to the input after the specified time period has elapsed, it is determined whether the resumption condition is met within the specified time period. A condition that makes it possible to estimate that the user intends to resume external charging is set as the resumption condition. For example, a specific operation performed on the vehicle can be set as the resumption condition.In this way, by determining whether the resumption condition is met, it is possible to estimate whether the user intends to resume the external charging process. Since the external charging process is resumed when the connector is connected to the input and the resumption condition is met, the external charging process can be resumed based on the user's intention.

[0010] With the configuration described above, the resumption condition includes a condition that a vehicle door opening operation has been performed by the user on the vehicle, and / or a condition that a vehicle door closing operation has been performed by the user on the vehicle. "The user who performed the vehicle door opening operation and / or the vehicle door closing operation without disconnecting the connector from the entrance even after the predetermined time has elapsed since the external charging was stopped" means that the user, for example, takes out luggage in the vehicle, so it can be estimated that the user does not intend to stop the external charging (intends to resume the external charging). In such a case, the external charging can be resumed.

[0011] (2) In one embodiment, the control device does not resume the external charging process if the resumption condition is not met within the predetermined period of time.

[0012] With the above configuration, if the resumption condition is not met within the specified time period after the external charging is stopped, it is estimated that the user does not intend to resume the external charging, and the external charging will not resume even if the connector is connected to the input. By determining whether the resumption condition is met or not, the external charging can be stopped based on the user's intention. For example, in the case of a configuration in which the external charging is resumed when the connector is connected to the input after the specified time period has elapsed since the external charging was stopped, an operation to stop the external charging is necessary. However, the above configuration can eliminate the need to stop the external charging.

[0013] With the configuration described above, the resumption condition includes a condition that a vehicle door opening operation has been performed by the user on the vehicle, and / or a condition that a vehicle door closing operation has been performed by the user on the vehicle. "The user who performed the vehicle door opening operation and / or the vehicle door closing operation without disconnecting the connector from the entrance even after the predetermined time has elapsed since the external charging was stopped" means that the user, for example, takes out luggage in the vehicle, so it can be estimated that the user does not intend to stop the external charging (intends to resume the external charging). In such a case, the external charging can be resumed.

[0014] (3) In one embodiment, the vehicle further includes a door locking device that prevents opening and closing of a door of the vehicle. The resumption condition includes a condition that an operation for placing the door locking device in a door locking state has been performed.

[0015] With the configuration described above, the resumption condition includes the condition that the operation to place the door locking device in the door locking state has been performed. If the user has performed the operation to place the door locking device in the door locking state without disconnecting the terminal from the input even after the specified time has elapsed since the external charging operation was stopped, it can be estimated that the user intends to resume the external charging operation. In such a case, the external charging operation can be resumed.

[0016] (4) In one embodiment, the predetermined operation includes a door unlocking operation for releasing the door locking state of the door locking device.

[0017] With the configuration described above, the user can stop the external charging process by performing the door unlock operation.

[0018] (5) In one embodiment, the vehicle further comprises an antenna that transmits a signal to a smart key (30) of the vehicle, the smart key being within a predetermined range of the vehicle. The resumption condition includes a condition that the smart key has moved from within the predetermined range to outside the predetermined range. When the control device receives a response signal from the smart key to the signal transmitted by the antenna, the control device determines that the smart key is within the predetermined range, and when the control device does not receive the response signal from the smart key, the control device determines that the smart key is outside the predetermined range.

[0019] With the configuration described above, the resumption condition includes the condition that the smart key has moved from within the specified range to outside the specified range. If the smart key has moved from within the specified range to outside the specified range (i.e., the user has moved) without disconnecting the connector from the input, even after the specified time has elapsed since the external charging operation was stopped, it can be estimated that the user intends to resume the external charging operation. In such a case, the external charging operation can be resumed.

[0020] (6) In one embodiment, the smart key comprises a first release switch that places the locking device in the unlocked state. The predetermined operation comprises an operation of the first release switch.

[0021] With the configuration described above, the user can stop the external charging process by pressing the first release switch of the smart key.

[0022] (7) In one embodiment, the vehicle further comprises a second release switch that places the locking device in the unlocked state. The predetermined operation comprises an operation of the second release switch.

[0023] With the configuration described above, the user can stop the external charging process by pressing the second release switch in the vehicle.

[0024] The foregoing and other objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure when taken in conjunction with the accompanying drawings. Fig. 1 is an overall configuration diagram of a charging system of a vehicle according to an embodiment. Fig. 2 shows a structure of an entrance and a structure around the entrance. Fig. 3 is a cross-sectional view (No. 1) along III-III in Fig. 2. Fig. 4 is a cross-sectional view (No. 2) along III-III in Fig. 2. Fig. 5 shows an example circuit configuration of the charging system. Fig. 6 shows a correspondence relationship between states of switches SW1 and SW2, a potential of a pilot signal CPLT, and a state of a CCIS relay. Fig. 7 is a flowchart showing a procedure of a process executed by an ECU during AC charging. Fig. 8 is a flowchart showing a procedure of a process executed during a charging stop process.

[0025] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings, in which the same or corresponding portions are designated by the same reference numerals, and description thereof will not be repeated. <gesamtkonfiguration>

[0026] Fig. 1 is an overall configuration diagram of a charging system of a vehicle 1 according to the present embodiment. The charging system is a system for performing external charging to charge a battery 100 installed in a vehicle 1 using electric power supplied from a charging device outside the vehicle 1. In the present embodiment, a case will be described in which an AC charging operation for charging the battery 100 installed in the vehicle 1 is performed using an AC power supplied from a charging device 500 located at, for example, a home as the external charging operation. In the present embodiment, the case of the AC charging operation in which the AC power supplied from the charging device 500 located at a home or the like is used will be described as an example.However, alternating current supplied by, for example, a public charging facility (charging station) can also be used.

[0027] As it is in Fig. 1, the charging system comprises the vehicle 1, a charging cable 400 and the charging device 500.

[0028] The charging device 500 includes an AC power supply 510 and an electrical outlet 520. The electrical outlet 520 is, for example, an AC electrical outlet for general use in a household.

[0029] During the AC charging process, the charging device 500 and the vehicle 1 are connected by the charging cable 400. The charging cable 400 includes an AC line 440, a charging connector 410 located at one end of the AC line 440, a plug 420 located at the other end of the AC line 440, and a charging circuit interruption device (hereinafter also referred to as "CCID") 430 located in the AC line 440. The charging connector 410 is connectable to an input 220 of the vehicle 1. The plug 420 is connectable to the electrical output 520 of the charging device 500. The CCID 430 is a circuit for switching between supplying and interrupting electrical power from the charging device 500 to the vehicle 1.

[0030] The vehicle 1 is an electric vehicle that travels by operating a drive motor (not shown) using electric power stored in the battery 100. The vehicle 1 can be any vehicle as long as it performs the external charging of the battery 100, and the vehicle 1 can be, for example, a fuel cell vehicle or a plug-in hybrid vehicle.

[0031] The vehicle 1 includes the battery 100, an antenna 150, entrance doors 170 (a left door 171 and a right door 172), and an electronic control unit (ECU) 300. Further, the vehicle 1 includes a charging lid 2, a charger 200, and the input 220 as a configuration for performing the AC charging process.

[0032] The battery 100 is installed in the vehicle 1 as a driving power source (i.e., a power source) for the vehicle 1. The battery 100 includes a plurality of stacked cells. Each cell is, for example, a secondary cell such as a nickel-metal hydride cell or a lithium-ion cell. Each cell may be a cell with a liquid electrolyte between a positive electrode and a negative electrode, or a cell with a solid electrolyte (solid-state cell). The battery 100 may be any battery as long as it is a rechargeable DC power supply. Furthermore, a large-capacity capacitor may be used.

[0033] The antenna 150 communicates with a smart key (an electronic key) 30 of the vehicle 1, which is carried by a user. When the smart key 30 is within a communication range CR in which communication via the antenna 150 is possible, the ECU 300 can communicate with the smart key 30 via the antenna 150. In contrast, when the smart key 30 is not within the communication range CR, that is, when the smart key 30 is outside the communication range CR, the ECU 300 cannot communicate with the smart key 30. The communication range CR according to the present embodiment may be an area other than the interior of the vehicle 1. "The communication range CR" according to the present embodiment corresponds to an example of the "prescribed range" according to the present disclosure.

[0034] The entrance doors 170 (the left door 171 and the right door 172) are opened and closed by manual operation of a user, essentially when the user gets into or out of the vehicle 1, or when the user loads or unloads luggage into the vehicle 1. Each entrance door 170 is equipped with an opening and closing detection sensor 180 and a door locking device 190. In particular, the left door 171 includes an opening and closing detection sensor 181 and a door locking device 191. The right door 172 includes an opening and closing detection sensor 182 and a door locking device 192.

[0035] The opening and closing detection sensor 180 (opening and closing detection sensors 181 and 182) detects whether the entrance door is open or closed and outputs a detection result to the ECU 300. The opening and closing detection sensor 180 is, for example, an interior light switch or the like. If the vehicle 1 has a trunk, the opening and closing detection sensor 180 is also arranged on a trunk lid.

[0036] The door locking device 190 (the door locking devices 191 and 192) switches the entrance door 170 between a door locking state and a door unlocking state in accordance with a control signal from the ECU 300. The door locking state is a state in which the entrance door 170 is fixed in a closed state, so that the user cannot open the entrance door 170. The door unlocking state is a state in which the door locking state is released or canceled, so that the user can open the entrance door 170.

[0037] The charging connector 410 of the charging cable 400 is connectable to the input 220. The input 220 is normally covered by the charging lid 2. When the charging lid 2 is open, the user can connect the charging connector 410 to the input 220. During AC charging, the charging connector 410 is connected to the input 220.

[0038] The charger 200 converts the alternating current received at the input 220 into direct current that can be charged into the battery 100 and outputs the direct current to the battery 100. The charger 200 is controlled by the ECU 300.

[0039] A locking device 50 is arranged near the entrance 220. The locking device 50 switches between a locking state in which the charging connector 410 (the charging cable 400) connected to the entrance 220 cannot be removed from the entrance 220, and an unlocking state in which the charging connector 410 connected to the entrance 220 can be removed from the entrance 220. When the charging connector 410 is connected to the entrance 220, the locking device 50 is switched from the unlocking state to the locking state in accordance with a control signal output from the ECU 300.

[0040] Fig. 2 shows a structure of the input 220 and a structure around the input 220. The Fig. 3 and Fig. 4 are cross-sectional views along III-III in Fig. 2, when the charging connector 410 is connected to the input 220. The connection between the charging connector 410 and the input 220 and a structure of the locking device 50 are described below with reference to Fig. 2 to 4 described.

[0041] The charging connector 410 of the charging cable 400 comprises a connecting element 411. The connecting element 411 is rotatably mounted about an axis 412. One end of the connecting element 411 comprises a projection portion that engages with a projection 221 of the input 220, and the other end of the connecting element 411 comprises a push button 415. The connecting element 411 is elastically biased by a spring 414 with respect to a main body of the charging connector 410 (see the Fig. 3 and Fig. 4).

[0042] When the charging connector 410 is inserted into the inlet 220, the projection portion of the connecting member 411 is engaged with the projection 221 of the inlet 220 (see a state of the connecting member 411 and the projection 221 in Fig. 3). Therefore, the charging connector 410 is not separated from the input 220.

[0043] The locking device 50 is arranged above (near) the entrance 220. As described above, the locking device 50 switches between the locking state in which the charging connector 410 connected to the entrance 220 cannot be removed from the entrance 220, and the unlocking state in which the charging connector 410 connected to the entrance 220 can be removed from the entrance 220.

[0044] The locking device 50 comprises a latch or locking pin 52 which is vertically displaceable and an electromagnetic actuator 51 which displaces the locking pin 52.

[0045] In the locking state, the locking pin 52 is pushed downward and fixed at a position in contact with an upper surface of the connecting member 411 (see the Fig. 3). Thus, even if the push button 415 is pressed, rotation of the connecting member 411 is prevented by the locking pin 52, which prevents the protruding portion of the connecting member 411 from lifting and detaching from the protrusion 221 of the input 220. That is, even if the user presses the push button 415, the user cannot remove the charging connector 410 from the input 220.

[0046] In the unlocking state, the locking pin 52 is pushed upward and fixed at a position that does not prevent rotation of the connecting element 411 (see the Fig. 4). This prevents rotation of the connecting element 411 by the locking pin 52, so that when the push button 415 is pressed, the connecting element 411 rotates about the axis 412, and the protruding portion located at the end opposite the push button 415 lifts up. This moves the protruding portion of the connecting element 411 away from the protrusion 221 of the input 220, allowing the charging connector 410 to be removed from the input 220. That is, when the user presses the push button 415, the user can remove the charging connector 410 from the input 220.

[0047] As it is in Fig. As shown in Figure 1, the ECU 300 includes a memory 311, a timer 312, and an input / output buffer (not shown). The ECU 300 receives signals from sensors and the like, outputs control signals to the respective devices, and controls the respective devices. Control can be implemented not only by software but also by dedicated hardware (electrical circuitry).

[0048] The ECU 300 calculates a state of charge (SOC) of the battery 100. Various known methods such as a method by integration over current waveform (coulomb counting) or a method in which an open circuit voltage (OCV) is estimated can be used as a method for calculating the SOC.

[0049] The ECU 300 performs a process for determining whether or not the smart key 30 of the vehicle 1 is within the communication range CR (hereinafter also referred to as a "verification process") based on information received at the antenna 150. Specifically, the ECU 300 outputs a request signal to the antenna 150 at the predetermined timing, for example. If the smart key 30 is within the communication range CR, the smart key 30 can receive the request signal from the vehicle 1. When the smart key 30 receives the request signal, the smart key 30 returns a response signal that can identify its own previously stored ID code.

[0050] If the ECU 300 does not receive the response signal from the smart key 30 within a defined time period after the ECU 300 sends the request signal, the ECU 300 determines "unsuccessful verification" (the smart key is not within the communication range CR). In contrast, if the ECU 300 receives the response signal from the smart key 30 within the defined time period after the ECU 300 sends the request signal, the ECU 300 performs a verification between the ID code identified by the response signal and an ID code provisionally stored in the memory 311. If these ID codes match, the ECU 300 determines "successful verification" (the smart key 30 of the vehicle 1 is within the communication range CR).If these ID codes do not match, the ECU 300 determines "unsuccessful verification" (the smart key 30 of the vehicle 1 is not within the communication range CR).

[0051] The smart key 30 includes a door lock button 31 and a door unlock button 32. When the user presses the door lock button 31, a door lock request signal is transmitted to the vehicle 1 via the antenna 150. When the user presses the door unlock button 32, a door unlock request signal is transmitted to the vehicle 1 via the antenna 150.

[0052] When the ECU 300 receives the door lock request signal, it controls the door lock device 190 (191 and 192) to place all the entrance doors 170 (the left door 171 and the right door 172) in the door lock state. When the ECU 300 receives the door unlock request signal, the ECU 300 controls the door lock device 190 to place all the entrance doors 170 in the door unlock state. The range within which the door lock request signal or the door unlock request signal from the smart key 30 can be transmitted may be larger than the communication range CR described above. That is, the user can operate the smart key 30 at a location farther away from the vehicle 1 than the above-described communication range CR, and switch between the door locking state and the door unlocking state of the entrance doors 170.

[0053] When the ECU 300 detects that the charging connector 410 is connected to the input 220, the ECU 300 places the locking device 50 in the locking state. Unlocking (shifting from the locking state to the unlocking state) is performed by operating the door unlock button 32 of the smart key 30. That is, the door unlock button 32 of the smart key 30 and the unlocking (shifting to the unlocking state) of the locking device 50 cooperate. When the door unlock button 32 is operated, the ECU 300 places all the entrance doors 170 in the door unlocking state and the locking device 50 in the unlocking state. <Wechselstrom ladevorgang>

[0054] The ECU 300 also controls the AC charging process. When the locking device 50 is in the locked state, the ECU 300 allows the AC charging process to be executed.

[0055] Fig. Figure 5 shows an example circuit configuration of the charging system. Fig. 5, the charging connector 410 of the charging cable 400 is connected to the input 220.

[0056] The ECU 300 of the vehicle 1 receives a connection signal PISW having a potential that changes in accordance with a connection state between the input 220 and the charging connector 410. Based on the potential of the connection signal PISW, the ECU 300 determines whether the charging connector 410 is connected to the input 220 or not.

[0057] When the charging cable 400 is connected to the charging device 500 and the input 220, the ECU 300 receives a pilot signal CPLT from the CCID 430 of the charging cable 400 via a signal line L1. The pilot signal CPLT is a signal for notifying the rated current of the charging cable 400 from a CPLT control circuit 470 to the ECU 300. Furthermore, the pilot signal CPLT has a potential controlled by the ECU 300 of the vehicle 1 and is used as a signal for remotely controlling a CCIS relay 450 of the ECU 300.

[0058] The CCID 430 in the charging cable 400 includes the CCIS relay 450, a CCID control unit 460, the CPLT control circuit 470, an electromagnetic coil 471, an electrical leakage detector 480, a voltage sensor 481, and a current sensor 482.

[0059] The CCIS relay 450 is arranged in a power supply path to the vehicle 1 and is controlled by the CPLT control circuit 470. When the CCIS relay 450 is in an open state, the power supply path is interrupted, so that no electric power can be supplied to the vehicle 1 from the charging device 500. When the CCIS relay 450 is in a closed state, electric power can be supplied to the vehicle 1 from the charging device 500 through the charging cable 400.

[0060] The CCID control unit 460 includes a CPU, a memory, input and output ports, and the like (each not shown). The CCID control unit 460 outputs signals to and receives signals from various sensors and the CPLT control circuit 470, and controls the operation of the CPLT control circuit 470.

[0061] The CPLT control circuit 470 outputs the pilot signal CPLT through the charging connector 410 and the input 220 to the ECU 300. The pilot signal CPLT has a potential controlled by the ECU 300 of the vehicle 1 and is used as a signal for remotely controlling the CCIS relay 450 from the ECU 300. The CPLT control circuit 470 controls the CCIS relay 450 based on the potential of the pilot signal CPLT. The pilot signal CPLT is also used as a signal for notifying the rated current of the charging cable 400 from the CPLT control circuit 470 to the ECU 300.

[0062] In particular, the CPLT control circuit 470 includes an oscillator 472, a resistor R20, and a voltage sensor 473.

[0063] When the potential of the pilot signal CPLT detected by the voltage sensor 473 is a defined potential V1 (e.g., 12 V), the oscillator 472 outputs the non-oscillating pilot signal CPLT. When the potential of the pilot signal CPLT drops to a potential V2 (e.g., 9 V), which is lower than the above-described defined potential V1, the oscillator 472 is controlled by the CCID control unit 460 and outputs the pilot signal CPLT, which oscillates at a defined frequency (e.g., 1 kHz) and with a defined duty cycle.

[0064] The duty cycle of the pilot signal CPLT is set in accordance with the rated current of the charging cable 400. The ECU 300 of the vehicle 1 can detect the rated current of the charging cable 400 based on the duty cycle of the pilot signal CPLT received from the CPLT control circuit 470 via the signal line L1.

[0065] When the potential of the pilot signal CPLT drops to V3 (e.g., 6 V), which is even lower than V2, the CPLT control circuit 470 supplies a current to the electromagnetic coil 471. When the current is supplied to the electromagnetic coil 471 from the CPLT control circuit 470, the electromagnetic coil 471 generates an electromagnetic force, and the CCIS relay 450 enters the closed state. As a result, a supply voltage (voltage from the charging device 500) is applied to the input 220 of the vehicle 1 through the charging cable 400.

[0066] The electrical leakage detector 480 is arranged at a midpoint of the AC line 440 of the charging cable 400 in the CCIS 430 to detect the presence or absence of an electrical leak. Specifically, the electrical leakage detector 480 detects an equilibrium state of currents flowing in opposite directions through two power lines constituting the AC line 440 and detects the occurrence of an electrical leak when the equilibrium state no longer exists. When the electrical leakage is detected by the electrical leakage detector 480, the power supply to the electromagnetic coil 471 is stopped, and the CCIS relay 450 enters the open state.

[0067] When the plug 420 of the charging cable 400 is inserted into the electrical outlet 520, the voltage sensor 481 detects a supply voltage applied by the charging device 500 and provides a notification of the detected value to the CCID control unit 460. The current sensor 482 detects a charging current flowing through the AC line 440 and provides a notification of the detected value to the CCID control unit 460.

[0068] Resistors R6 and R7 and a switch SW20 are arranged in the charging connector 410. Resistors R6 and R7 and the switch SW20, together with a power supply node 350 and a pull-up resistor R10 arranged in the ECU 300 of the vehicle 1, and a resistor R5 arranged in the input 220, form a circuit that detects the connection state between the charging connector 410 and the input 220.

[0069] Resistors R6 and R7 are connected in series between a ground line L2 and a connection signal line L3. Switch SW20 is connected in parallel with resistor R7. Switch SW20 is implemented, for example, by a limit switch, and one contact point thereof is closed when charging connector 410 is connected to input 220. Furthermore, switch SW20 and push button 415 disposed in charging connector 410 cooperate. Push button 415 is operated by the user when the user removes charging connector 410 from input 220. When push button 415 is not pressed, switch SW20 is in a closed state. When push button 415 is pressed, switch SW20 transitions to an open state.

[0070] With the circuit configuration described above, in a state where the charging connector 410 is not connected to the input 220, a signal having a potential Vx determined by a voltage of the power supply node 350, the pull-up resistor R10, and the resistor R5 is generated in the connection signal line L3 as a connection signal PISW.

[0071] In a state where the charging connector 410 is connected to the input 220 (the push button 415 is not pressed), a signal with a potential Vy determined by the voltage of the power supply node 350, the pull-up resistor R10, and the resistors R5 and R6 is generated in the connection signal line L3 as the connection signal PISW. When the push button 415 is pressed in a state where the charging connector 410 is inserted into the input 220, a signal with a potential Vz determined by the voltage of the power supply node 350, the pull-up resistor R10, and the resistors R5 to R7 is generated in the connection signal line L3 as the connection signal PISW. Therefore, the ECU 300 can detect the connection state between the charging connector 410 and the input 220 by detecting the potential of the connection signal PISW.

[0072] In the vehicle 1, the ECU 300 further includes the CPU 310, a resistance circuit 320, and input buffers 330 and 340 in addition to the above-described power supply node 350 and pull-up resistor R10.

[0073] The resistance circuit 320 is a circuit for controlling the potential of the pilot signal CPLT transmitted through the signal line L1. The resistance circuit 320 includes pull-down resistors R1 and R2 and switches SW1 and SW2. The pull-down resistor R1 and the switch SW1 are connected in series between the signal line L1, through which the pilot signal CPLT is transmitted, and a vehicle ground 360. The pull-down resistor R2 and the switch SW2 are also connected in series between the signal line L1 and the vehicle ground 360. The switches SW1 and SW2 are controlled in accordance with the control signals S1 and S2 from the CPU 310 to assume an electrically conductive (on) state or an electrically non-conductive (off) state, respectively.

[0074] Input buffer 330 is a circuit for coupling the pilot signal CPLT to the CPU 310 via signal line L1. Input buffer 340 is a circuit for coupling the link signal PISW to the CPU 310 via link signal line L3.

[0075] The CPU 310 receives the pilot signal CPLT from the input buffer 330. Furthermore, the CPU 310 receives the connection signal PISW from the input buffer 340. The CPU 310 detects the potential of the connection signal PISW and detects the connection state between the input 220 and the charging connector 410 based on the potential of the connection signal PISW. Furthermore, the CPU 310 detects the rated current of the charging cable 400 by detecting the oscillation state and the duty cycle of the pilot signal CPLT.

[0076] Furthermore, when the charging connector 410 is connected to the input 220, the CPU 310 controls the potential of the pilot signal CPLT by controlling the switches SW1 and SW2 in the resistance circuit 320, and requests supply and interruption of the electric current to the charging device 500. In particular, the CPU 310 controls the potential of the pilot signal CPLT to thereby remotely control the CCIS relay 450 in the charging cable 400.

[0077] When the contact point of the CCIS relay 450 in the charging cable 400 is closed as a result of remote control by the CPU 310, the AC power from the charger 500 is supplied to the charger 200, and the preparation for the AC charging process is completed. The CPU 310 controls the charger 200 to convert the AC power from the charger 500 into DC power that can be charged into the battery 100 and supplies the DC power to the battery 100. In this way, the AC charging process of the battery 100 is performed.

[0078] Fig. 6 shows a correspondence relationship between the states of the switches SW1 and SW2, the potential of the pilot signal CPLT and the state of the CCIS relay 450. In Fig. 6, the horizontal axis represents time and the vertical axis represents the potential of the pilot signal CPLT, the states of the switches SW1 and SW2 and the state of the CCIS relay 450.

[0079] Before time t1, the charging cable 400 is not connected to the vehicle 1 and the charging device 500. In this state, the switches SW1 and SW2 and the CCIS relay 450 are each closed, and the potential of the pilot signal CPLT is 0 V.

[0080] When the plug 420 of the charging cable 400 is connected to the electrical output 520 of the charging device 500 at time t1, the CPLT control circuit 470 generates the pilot signal CPLT in accordance with the electrical current from the charging device 500. At time t1, the charging connector 410 of the charging cable 400 is not connected to the input 220. The potential of the pilot signal CPLT is V1 (e.g., 12 V), and the pilot signal CPLT is in a non-oscillating state.

[0081] When the charging connector 410 is connected to the input 220 at time t2, the potential of the connection signal PISW supplied to the CPU 310 changes. In response to the change in the potential of the connection signal PISW, the CPU 310 turns on the switch SW2. As a result, the potential of the pilot signal CPLT drops to V2 (e.g., 9 V) through the pull-down resistor R2.

[0082] When the CCID control unit 460 detects that the potential of the pilot signal CPLT has dropped to V2, the CCID control unit 460 gives an oscillation instruction to the oscillator 472 and oscillates the pilot signal CPLT at time t3.

[0083] When the CPU 310 detects that the pilot signal CPLT has oscillated, the CPU 310 detects the rated current of the charging cable 400 based on the duty cycle of the pilot signal CPLT. Then, at time t4, the CPU 310 opens switch SW1 in addition to switch SW2. As a result, the potential of the pilot signal CPLT drops further to V3 (e.g., 6 V) through the pull-down resistor R1.

[0084] When the potential of the pilot signal CPLT drops to V3 at time t5, the contact point of the CCIS relay 450 is closed by the CPLT control circuit 470. As a result, the electric current is transmitted from the charging device 500 through the charging cable 400 to the vehicle 1. Subsequently, the charging device 200 (see the Fig. 1) controlled by the CPU 310 to start the AC charging process of the battery 100. <Stopp und Wiederaufnahme des Wechselstromladevorgangs>

[0085] As described above, the ECU 300 according to the present embodiment allows the AC charging operation when the locking device 50 is in the locked state. During the AC charging operation, when the locking device 50 is placed in the unlocked state, the ECU 300 stops the AC charging operation. This prevents exposure of the charging connector 410 in a state where electric power is being supplied and exposure of the input 220 in a state where the battery 100 and the input 220 are in an electrically conductive state.

[0086] "When the locking device 50 is placed in the unlocked state during the AC charging process" refers to the case where the door unlock button 32 of the smart key 30 is operated during the AC charging process. The operation of the door unlock button 32 of the smart key 30 corresponds to an example of the "predetermined operation" according to the present disclosure. That is, when the predetermined operation is performed during the AC charging process, the ECU 300 stops the AC charging process.

[0087] When the door unlock button 32 of the smart key 30 is operated during the AC charging process, the ECU 300 places the entrance doors 170 in the door unlock state. Further, in conjunction with the operation of the door unlock button 32, the ECU 300 changes the locking device 50 from the locking state to the unlock state and controls the potential of the pilot signal CPLT (e.g., controls the potential of the pilot signal CPLT to V2) to stop the AC charging process. If the AC charging process is performed while the entrance doors 170 are in the door unlock state, the ECU 300 continues the door unlock state, places the locking device 50 in the unlock state in response to the operation of the door unlock button 32, and stops the AC charging process.“During AC charging” refers to a case where a preset charging period has not yet elapsed since the start of AC charging, a case where the SOC of the battery 100 has not yet reached a set predetermined SOC (e.g., 100%), or the like.

[0088] Several cases are assumed as the case where the user operates the door unlock button 32 of the smart key 30 during the AC charging process. For example, a case (1) where the user operates the door unlock button 32 to take out luggage from the vehicle 1, a case (2) where the user inadvertently operates the door unlock button 32, a case (3) where the user operates the door unlock button 32 with the intention of ending the AC charging process, or the like are assumed.

[0089] When the AC charging operation is stopped in cases (1) and (2) described above, in some cases the user may not have realized that the AC charging operation has been stopped. For example, the user may press the door unlock button 32 to take out the luggage in the vehicle 1, and after taking out the luggage, press the door lock button 31 and exit the vehicle 1. In this case, the AC charging operation is stopped by pressing the door unlock button 32. Nevertheless, if the user realizes that the AC charging operation is continuing (i.e., the user did not intend to stop the AC charging), a charging opportunity is lost.Therefore, it is desirable to resume the AC charging process when, for example, the charging connector 410 is still connected to the input 220 after a predetermined period of time has elapsed since the AC charging process was stopped.

[0090] In contrast, when the AC charging is stopped in case (3) described above, the user may want to stop the AC charging. However, disconnecting the connector from the input within the specified time may not be possible for some reasons. If the AC charging is resumed when the charging connector 410 is still connected to the input 220 after the specified time has elapsed since the AC charging was stopped, to satisfy cases (1) and (2) described above, the AC charging may be resumed in some cases even though the user does not intend to continue the AC charging.

[0091] Therefore, in the vehicle 1 according to the present embodiment, when the AC charging operation is stopped during the AC charging operation, the timer 312 is started to start the timing. Until a predetermined period of time has elapsed since the timing start, it is monitored whether a resumption condition is satisfied or not. A state that makes it possible to estimate that the user intends to resume the AC charging operation is set as the resumption condition. By determining whether the resumption condition is satisfied or not, in addition to determining whether the charging connector 410 is connected to the input 220 after the predetermined period of time has elapsed, it is possible to estimate whether the user intends to resume the AC charging operation or not.If the resumption condition is met within the predetermined time period and the charging connector 410 is connected to the input 220 after the predetermined time period has elapsed, it is estimated that the user intends to resume AC charging, and the AC charging process is resumed. If the resumption condition is not met within the predetermined time period, it is estimated that the user does not intend to resume AC charging, and the AC charging process is not resumed even if the charging connector 410 is connected to the input 220 after the predetermined time period has elapsed.If the charging connector 410 is not connected to the input 220 after the predetermined time period has elapsed, the AC charging process will not resume even if the resumption condition is met within the predetermined time period.

[0092] In particular, if at least one of the following conditions (A) to (E) is met, it can be determined that the resumption condition is met: (A) a condition that one of the entrance doors 170 has been opened; (B) a condition that one of the entrance doors 170 has been closed; (C) a condition that one of the entrance doors 170 has been opened and closed; (D) a condition that the door lock button 31 has been pressed; and (E) a condition that the outcome of the verification process has changed from successful verification to unsuccessful verification.

[0093] If the resumption condition is met, it can be estimated that the user intends to continue the AC charging operation. For example, in (A) to (C) described above, "the user who has performed the operation to open one of the entrance doors 170 of the vehicle 1 and / or the operation to close one of the entrance doors 170 of the vehicle 1 without disconnecting the charging connector 410 from the entrance 220 even after the predetermined time has elapsed since the AC charging operation was stopped" means that the user, for example, takes out the luggage in the vehicle 1, so it can be estimated that the user intends to stop the AC charging operation (intends to resume the AC charging operation).In the above-described (D), "the user who has operated the door lock button 31 to lock the entrance doors 170 of the vehicle 1 (bringing the door locking device 190 into the locking state) without disconnecting the charging connector 410 from the entrance 220" means that the user is not using the vehicle 1, so it can be estimated that the user intends to resume AC charging. In the above-described (E), since the user carrying the smart key 30 leaves the vehicle 1 without disconnecting the charging connector 410 from the entrance 220, it can be estimated that the user intends to resume AC charging.

[0094] The predetermined time period may only be set to be equal to or longer than a time period during which the charging connector 410 can be removed from the input 220, and may be set as appropriate.

[0095] By determining whether or not the resumption condition is satisfied within the predetermined time period, in addition to determining whether or not the charging connector 410 is connected to the input 220 after the predetermined time period has elapsed since the AC charging operation was stopped, the AC charging operation can be resumed based on the user's intention. <Von der ECU ausgeführter Prozess>

[0096] Fig. Fig. 7 is a flowchart showing a procedure of a process executed by the ECU 300. The process of Fig. The flowchart shown in Figure 7 is started when the charging connector 410 is connected to the input 220 and the AC charging process is started. Each step (hereinafter abbreviated as "S") in the Fig. 7 and the one described below Fig. The flowcharts shown in Figure 8 are described as being implemented by software processing by the ECU 300. However, some or all of the steps may be implemented by hardware (electrical circuitry) formed in the ECU 300.

[0097] When the AC charging operation is started, the ECU 300 determines whether the predetermined operation has been performed (S 10). In the present embodiment, the predetermined operation refers to the operation performed on the door unlock button 32 of the smart key 30.

[0098] If the predetermined operation has not been performed (NO in S10), the ECU 300 continues the AC charging process (S20). Then, the ECU 300 determines whether the SOC of the battery 100 has reached the predetermined SOC (S30). In S30, instead of or in addition to determining whether the SOC of the battery 100 has reached the predetermined SOC, it may be determined whether the preset charging time has elapsed since the start of the AC charging process.

[0099] If the SOC of the battery 100 has reached the predetermined SOC (YES in S30), the ECU 300 ends the process. In contrast, if the SOC of the battery 100 has not reached the predetermined SOC (NO in S30), the ECU 300 returns the process to S10.

[0100] When the predetermined operation has been performed in S10 (YES in S10), the ECU 300 executes a charge stop process (S40).

[0101] Fig. 8 is a flowchart showing a procedure of a process executed during the charging stop process. When the charging stop process is started, the ECU 300 sets the locking device 50 to the unlock state and controls the potential of the pilot signal CPLT, thereby stopping the AC charging process (S401). Specifically, the ECU 300 controls the potential of the pilot signal CPLT to, for example, V2. This causes the CCIS relay 450 to enter the open state, and the AC charging process is stopped.

[0102] When the AC charging process is stopped in S401, the ECU 300 starts the timer 312 to start the timing (S403). Then, until the predetermined time period has elapsed since the timing start, the ECU 300 monitors whether the resumption condition is met (S405). Specifically, the ECU 300 monitors whether at least one of the above-described (A) to (E) is met. If the resumption condition is met, the ECU 300 sets a flag indicating, for example, that the resumption condition has been met.

[0103] Until the specified time period has elapsed since the timing start (NO in S407), the ECU 300 continues monitoring whether the resumption condition is met. If the specified time period has elapsed since the timing start (YES in S407), the ECU 300 terminates the charge stop process.

[0104] As it is in Fig. As shown in Figure 7, when the ECU 300 has completed the charging stop process, it determines whether the resumption condition has been met during the predetermined period of time (S50). Specifically, the ECU 300 determines whether the resumption condition has been met during the predetermined period of time based on whether the flag indicating that the resumption condition has been met is set.

[0105] If the resumption condition has been satisfied during the predetermined period of time (YES in S50), the ECU 300 determines whether or not the charging connector 410 is connected to the input 220 (S60).

[0106] If the charging connector 410 is connected to the input 220 (YES in S60), the ECU 300 sets the locking device 50 to the locking state (S70). That is, if the resumption condition is met during the predetermined period and the charging connector 410 is connected to the input 220 after the predetermined period has elapsed, the ECU 300 sets the locking device 50 to the locking state.

[0107] Then, the ECU 300 resumes the AC charging process (S80). Specifically, the ECU 300 controls the potential of the pilot signal CPLT to resume the AC charging process. Specifically, the ECU 300 controls the potential of the pilot signal CPLT to V3. This causes the CCIS relay 450 to enter the closed state, and the AC charging process is performed again.

[0108] In contrast, the ECU 300 terminates the process if the resumption condition has not been met within the predetermined period of time (NO in S50). That is, if the resumption condition has not been met within the predetermined period of time, the ECU 300 does not resume the AC charging process. In this case, the process ends, with the locking device 50 remaining in the unlocked state.

[0109] If the charging connector 410 is not connected to the input 220 in S60 (NO in S60), the ECU 300 terminates the process. That is, if the charging connector 410 is not connected to the input 220 even if the resumption condition is met during the predetermined time period, the ECU 300 does not resume the AC charging process.

[0110] As described above, in the vehicle 1 according to the present embodiment, when the predetermined operation is performed during the AC charging operation, the locking device 50 is placed in the unlocked state and the AC charging operation is stopped. If the resumption condition is satisfied during the predetermined period after the AC charging operation is stopped and the charging connector 410 has been connected to the input 220 after the predetermined period has elapsed, the locking device 50 is placed in the locked state and the AC charging operation is resumed. By determining whether the resumption condition is satisfied during the predetermined period, in addition to determining whether the charging connector 410 is connected to the input 220, it can be estimated whether the user intends to resume the AC charging operation.This allows the AC charging process to resume based on the user's intention.

[0111] If the resumption condition is not met within the predetermined time period after the AC charging operation is stopped, it is estimated that the user does not intend to resume the AC charging operation, and the AC charging operation is not resumed even if the charging connector 410 is connected to the input 220. This allows the AC charging operation to be terminated based on the user's intention. [First modification]

[0112] The vehicle 1 may include a timer charging function. The timer charging function refers to a function for starting the power supply to the battery 100 when the start time set by the user is reached. When the timer charging function is used, the user sets the start time and connects the charging connector 410 to the input 220. When the start time is reached, the ECU 300 starts supplying power to the battery 100.

[0113] When the timer charging function is used, a period from the user setting the start time and connecting the charging connector 410 to the input 220 until the AC charging process is completed (when the predetermined SOC is reached and / or the charging time is reached) is defined as a period from the start of the AC charging process to the end of the AC charging process. That is, a period from connecting the charging connector 410 to the input 220 until the vehicle 1 (the battery 100) is supplied with power from the charging device 500 is also included in "during the AC charging process."

[0114] When the timer charging function is used, if the predetermined operation is performed during a period from connecting the charging connector 410 to the input 220 until the start time is reached, the ECU 300 places the locking device 50 in the unlock state and stops the timer charging (stops the AC charging operation). If the resumption condition is met during the predetermined period after the timer charging is stopped, and if the charging connector 410 is connected to the input 220 after the predetermined period has elapsed, the ECU 300 places the locking device 50 in the locking state and resumes the timer charging. This allows the timer charging to be resumed based on the user's intention. After the start time is reached and the power supply to the battery 100 is started, a process similar to that of the embodiment is executed. [Second modification]

[0115] In a second modification, another example of the predetermined operation is described. In the embodiment, the case where the predetermined operation is the operation performed on the door unlock button 32 of the smart key 30 is described. If the smart key 30 includes an unlock button for placing the locking device 50 in the unlocked state, the predetermined operation may be an operation performed on the unlock button.

[0116] As it is in Fig. As shown in Figure 1, the smart key 30 includes a first unlock button 33 for placing the locking device 50 in the unlocked state. By operating the first unlock button 33, the user can place the locking device 50 in the unlocked state. The first unlock button 33 corresponds to an example of the "first release switch" according to the present disclosure.

[0117] When the ECU 300 detects via the antenna 150 that the unlock button 33 has been pressed, the ECU 300 sets the locking device 50 to the unlocked state and stops the AC charging process. The user can stop the AC charging process by pressing the first unlock button 33 of the smart key 30. [Third Modification]

[0118] In a third modification, yet another example of the predetermined operation is described. When the vehicle 1 is equipped with an unlock button for placing the locking device 50 in the unlocked state, the predetermined operation may be an operation performed on the unlock button.

[0119] As it is in Fig. 2, a second release button 230 for placing the locking device 50 in the unlocked state is provided near the entrance 220. By operating the second release button 230, the user can place the locking device 50 in the unlocked state. The second release button 230 corresponds to an example of the "second release switch" according to the present disclosure.

[0120] When the ECU 300 detects that the second unlock button 230 has been pressed, the ECU 300 sets the locking device 50 to the unlocked state and stops the AC charging process. By pressing the second unlock button 230, which is located near the input 220, the user can stop the AC charging process. [Fourth Modification]

[0121] In a fourth modification, yet another example of the predetermined operation is described. The vehicle 1 may be configured to switch between the door locking state and the door unlocking state of the entrance door 170 based on an operation performed on a doorknob of the entrance door 170 when successful verification is determined in the verification process. In this case, the predetermined operation may be the operation performed on the doorknob of the entrance door 170 when successful verification is determined in the verification process. Examples of the operation performed on the doorknob include an operation in which the user touches the doorknob, an operation in which the user presses a button (not shown) arranged next to the doorknob, or the like.

[0122] When successful verification is determined in the verification process and the user touches, for example, the doorknob of the entrance door 170, the ECU 300 controls the door locking device 190 to switch the entrance door 170 from the door locking state to the door unlocking state or from the door unlocking state to the door locking state.

[0123] As described above, when the entrance door 170 is switched from the door lock state to the door unlock state during the AC charging process, the ECU 300 switches the locking device 50 from the lock state to the unlock state and stops the AC charging process. The user can stop the AC charging process by using the smart key 30 and touching the door knob of the vehicle 1 during the AC charging process.

[0124] As the resumption condition, a condition can be applied that, as a result of touching the doorknob, if successful verification was determined in the verification process, the entrance door 170 has been switched from the door unlock state to the door lock state. That is, by touching the doorknob and switching the entrance door 170 from the door unlock state to the door lock state within a predetermined period of time after stopping the AC charging process, the user can resume the AC charging process if the charging connector 410 is connected to the input 220. [Fifth Modification]

[0125] In the embodiment, the case where the external charging process is the AC charging process is described. However, the external charging process is not limited to the AC charging process, but may be the DC charging process for charging the battery 100 installed in the vehicle 1 using an electric power supplied from a DC power supply outside the vehicle 1. The present disclosure is applicable to the DC charging process, similar to the AC charging process.

[0126] While the embodiment of the present disclosure is described above, it should be understood that the embodiment disclosed herein is to be considered in all respects only as exemplary and not restrictive. The scope of the present disclosure is defined by the claims and is intended to include all modifications within the scope and meaning equivalent to the claims.< / gesamtkonfiguration>

Claims

[1] Vehicle (1) designed to perform an external charging process using an electric current supplied from a power supply (500) outside the vehicle (1) via a charging cable (400) in order to charge an energy storage device (100) installed in the vehicle (1), the vehicle (1) comprising: an input (220) which can be connected to a connector (410) which is arranged in the charging cable (400); a locking device (50) designed to switch between a locked state and an unlocked state, wherein the connecting piece (410) connected to the input (220) is not removable from the input (220) in the locked state, and wherein the connecting piece (410) connected to the input (220) is removable from the input (220) in the unlocked state; and a control device (300) designed to allow external charging when the locking device (50) is in the locked state, wherein The control unit (300), when it detects that the connecting piece (410) is connected to the input (220), sets the locking device (50) into the locked state, the control unit (300) sets the locking device (50) to the unlocked state and stops the external charging process when a predetermined actuation is performed during the external charging process, and The control unit (300) puts the locking device (50) into the locked state and resumes the external charging process if, within a predetermined time period after the external charging process has stopped, a predetermined resumption condition is met and the connecting piece (410) is connected to the input (220), characterized by , that: The resumption condition includes at least one condition that a door (170) of the vehicle (1) has been opened and a condition that the door of the vehicle (1) has been closed. [2] Vehicle (1) according to claim 1, wherein the control unit (300) does not resume the external charging process if the resumption condition is not met within the specified time period. [3] Vehicle (1) according to claim 1 or 2, further comprising a door locking device (190) which prevents the opening and closing of a door of the vehicle (1), wherein the resumption condition includes a condition that an actuation to put the door locking device (190) into a door locking state has been performed. [4] Vehicle (1) according to claim 3, wherein the specified actuation comprises a door release actuation for releasing the door locking state of the door locking device (190). [5] Vehicle (1) according to any one of claims 1 to 4, further comprising an antenna (150) which transmits a signal to a smart key (30) of the vehicle (1), wherein the smart key (30) is located within a predetermined area of ​​the vehicle (1), wherein the resumption condition includes a condition that the smart key (30) has moved from inside the specified area to outside the specified area, and If the control device (300) receives a response signal from the smart key (30) to the signal transmitted by the antenna, the control device (300) determines that the smart key (30) is within the specified range, and if the control device (300) does not receive the response signal from the smart key (30), the control device (300) determines that the smart key (30) is outside the specified range. [6] Vehicle (1) according to claim 5, wherein the smart key (30) includes a first release switch (33) which sets the locking device (50) into the unlocked state, and The specified actuation includes actuation of the first release switch (33). [7] Vehicle (1) according to any one of claims 1 to 6, further comprising a second release switch (230) which puts the locking device (50) into the unlocked state, wherein the predetermined actuation comprises actuation of the second release switch (230).

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