Electric vehicle electronic lock control method, device, equipment and medium

Abstract

The application provides an electric vehicle electronic lock control method, device, equipment and medium. The method comprises the following steps: in a charging process, sending a locking signal to an electronic lock through a vehicle-mounted charger of a vehicle, controlling a motor of the electronic lock to rotate forward to lock according to the locking signal; if a first preset voltage level is detected at a ground end of the electronic lock, it is determined that the electronic lock is successfully locked; when the charging is completed, sending an unlocking signal to the electronic lock through the vehicle-mounted charger, controlling the motor of the electronic lock to rotate reversely to unlock according to the unlocking signal; and if a second preset voltage level is detected at the ground end of the electronic lock, it is determined that the electronic lock is successfully unlocked. The method can well control the timing of locking and unlocking of the electronic lock, and ensure the charging safety of the electric vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent vehicles, and in particular to an electric vehicle electronic lock control method, device, equipment and medium. BACKGROUND

[0002] With the development of new energy technology, more and more electric vehicles are popularized. In order to improve the efficiency and speed of alternating current charging, more and more high-power on-board chargers will appear on the market. For example, the mainstream charger product on the market at present is 6.6KW, and the 11KW charger product has entered the research and development stage and has a trend of becoming mainstream in the future. Therefore, the power supply equipment has to consider the charging safety.

[0003] The existing way to ensure charging safety is to set a clamping device on the charging port of the electric vehicle charger product to prevent it from falling off, so as to ensure that the charger product and the power supply equipment (such as a charging pile) are not easy to fall off and cause safety problems during charging. However, such a processing method is not convenient and intelligent, and sometimes the clamping device may not be stable enough, resulting in that the charging process is still not safe enough.

[0004] Therefore, the present application provides an electronic lock control method which can increase safety to control the charging process safely. SUMMARY

[0005] The present application provides an electric vehicle electronic lock control method, device, equipment and medium to solve the problem of the safety of the charging process of the electric vehicle in the prior art.

[0006] In a first aspect, the present application provides an electric vehicle electronic lock control method, comprising:

[0007] In the charging process, the vehicle's on-board charger sends a locking signal to the electronic lock, and controls the electronic lock motor to rotate forward to lock according to the locking signal;

[0008] If a first preset voltage is detected at the ground end of the electronic lock, it is confirmed that the electronic lock is successfully locked;

[0009] When the charging is completed, the on-board charger sends an unlocking signal to the electronic lock, and controls the electronic lock motor to rotate reversely to unlock according to the unlocking signal;

[0010] If a second preset voltage is detected at the ground end of the electronic lock, it is confirmed that the electronic lock is successfully unlocked.

[0011] In a possible implementation, the method of sending a locking signal to the electronic lock by the vehicle's on-board charger and controlling the electronic lock motor to rotate forward to lock according to the locking signal in the charging process comprises:

[0012] confirming that the vehicle is in the charging process by a charging signal received by the on-board charger, the charging signal being sent by a battery management system;

[0013] sending a locking signal to the electronic lock by the on-board charger of the vehicle during the charging process;

[0014] grounding the neutral point of the electronic lock and connecting the live wire to positive voltage according to the locking signal, and controlling the electronic lock motor to rotate in the positive direction to lock.

[0015] In a possible implementation, the sending of the unlocking signal to the electronic lock by the on-board charger when the charging is completed, and the controlling of the electronic lock motor to rotate in the reverse direction to unlock according to the unlocking signal, comprises:

[0016] confirming that the vehicle charging is completed by a stop charging signal received by the on-board charger, the stop charging signal being sent by the battery management system;

[0017] sending an unlocking signal to the electronic lock by the on-board charger of the vehicle when the charging is completed;

[0018] connecting the neutral point of the electronic lock to positive voltage and grounding the live wire according to the unlocking signal, and controlling the electronic lock motor to rotate in the reverse direction to unlock.

[0019] In a possible implementation, after the controlling of the electronic lock motor to rotate in the reverse direction to unlock, the method further comprises:

[0020] controlling the neutral point of the electronic lock to be disconnected by the on-board charger, and closing the electronic lock.

[0021] In a possible implementation, during the charging process, if the first preset level is detected at the ground wire end of the electronic lock, it is confirmed that the electronic lock is successfully locked, which comprises:

[0022] detecting whether the level at the ground wire end of the electronic lock is within a first preset level range;

[0023] if the level at the ground wire end of the electronic lock is not within the first preset level range, after a first preset time interval, it is detected again according to the remaining detection times whether the level at the ground wire end of the electronic lock is within the first preset level range;

[0024] if the level at the ground wire end of the electronic lock is detected within the first preset level range within the remaining detection times, it is confirmed that the electronic lock is successfully locked;

[0025] Correspondingly, when the charging is completed, if the second preset level is detected at the ground wire end of the electronic lock, it is confirmed that the electronic lock is successfully unlocked, which comprises:

[0026] detecting whether the level of the ground terminal of the electronic lock is within a second preset level range;

[0027] If the level of the ground terminal of the electronic lock is not within the second preset level range, after a second preset time interval, re-detecting whether the level of the ground terminal of the electronic lock is within the second preset level range according to a remaining detection number;

[0028] If the level of the ground terminal of the electronic lock is detected within the second preset level range within the remaining detection number, confirming that the electronic lock is successfully unlocked.

[0029] In a possible implementation, if the level of the ground terminal of the electronic lock is not detected within the first preset level range within the remaining detection number, confirming that the electronic lock is faulty;

[0030] If the level of the ground terminal of the electronic lock is not detected within the second preset level range within the remaining detection number, confirming that the electronic lock is faulty.

[0031] In a possible implementation, if the vehicle-mounted charger receives an interrupt charging signal during the charging process, the method further comprises:

[0032] Based on the interrupt charging signal issued by the battery management system, the vehicle-mounted charger reduces the charging current to within a preset current within a preset time threshold, and sends an unlock signal to the electronic lock until it is confirmed that the electronic lock is successfully unlocked or it is confirmed that the electronic lock is faulty; wherein the battery management system is controlled by an instrument unlocking switch whether to issue the interrupt charging signal, and the instrument unlocking switch is controlled by a driver.

[0033] In a second aspect, the application provides an electronic lock control device for an electric vehicle, comprising:

[0034] A first processing module is configured to send a locking signal to an electronic lock through a vehicle-mounted charger of a vehicle during a charging process, and control a motor of the electronic lock to rotate forward to lock according to the locking signal.

[0035] A first determining module is configured to confirm that the electronic lock is successfully locked if a preset level is detected at a ground terminal of the electronic lock.

[0036] A second processing module is configured to send an unlock signal to the electronic lock through the vehicle-mounted charger when the charging is completed, and control the motor of the electronic lock to rotate reversely to unlock according to the unlock signal.

[0037] A second determining module is configured to confirm that the electronic lock is successfully unlocked if a preset level is detected at the ground terminal of the electronic lock.

[0038] In a third aspect, the present application provides an electric vehicle electronic lock control device, comprising at least one processor and a memory;

[0039] The memory stores computer execution instructions;

[0040] The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the electric vehicle electronic lock control method as described above.

[0041] In a fourth aspect, the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the electric vehicle electronic lock control method as described above.

[0042] The electric vehicle electronic lock control method, device, equipment and medium provided by the present application can send a locking signal to the electronic lock through the vehicle-mounted charger during the charging process, control the electronic lock motor to rotate forward to lock according to the locking signal, detect a first preset level at the ground end of the electronic lock to confirm that the electronic lock is successfully locked, send an unlocking signal to the electronic lock through the vehicle-mounted charger when the charging is completed, control the electronic lock motor to rotate reversely to unlock according to the unlocking signal, and detect a second preset level at the ground end of the electronic lock to confirm that the electronic lock is successfully unlocked.

[0043] In the above method, during the charging process, the indication of the locking signal of the vehicle-mounted charger indicates the electronic lock to lock, so that the charging port of the vehicle-mounted charger and the power supply port of the power supply device form a locking state, so that the charging process is not prone to falling off, and the charging safety is ensured; and after the charging is completed, the indication of the unlocking signal of the vehicle-mounted charger indicates the electronic lock to unlock, so that the operator can smoothly pull the charging port of the vehicle-mounted charger from the power supply port of the power supply device, and the entire charging process is smoothly completed. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0045] Figure 1 A system schematic diagram of the electric vehicle electronic lock control provided by the embodiment of the present application;

[0046] Figure 2 An electronic lock locking and unlocking control schematic diagram provided by the embodiment of the present application;

[0047] Figure 3 A flowchart of an electric vehicle electronic lock control method provided for an embodiment of the present application Figure 1 ;

[0048] Figure 4 A flowchart of an electric vehicle electronic lock control method provided for an embodiment of the present application Figure 2 ;

[0049] Figure 5 A flowchart of an electric vehicle electronic lock control method provided for an embodiment of the present application Figure 3 ;

[0050] Figure 6 A control device diagram of an electric vehicle electronic lock provided for an embodiment of the present application

[0051] Figure 7 A hardware schematic diagram of an electric vehicle electronic lock control device provided for an embodiment of the present application DETAILED DESCRIPTION

[0052] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0053] With the development of new energy technology, more and more electric vehicles are popularized. In order to improve the efficiency and speed of alternating current charging, more and more high-power on-board chargers will appear on the market. In the process of power-on and power-off of the modules in the electric vehicle, there is a sudden change of high voltage and large current. In the charging process, the related modules in the electric vehicle are also powered on and powered off. Therefore, during the high-power charging process, attention should be paid to charging safety. If the charging interface falls off during the charging process, it may cause more sudden changes in current and voltage, resulting in accidents and problems for the electric vehicle and the operator charging.

[0054] In the charging process of the common on-board charger in the prior art, the locking mode between the charging interface of the on-board charger and the power supply interface of the power supply device is a clamping form. This indeed can fix the charging interface of the on-board charger to a certain extent, but there is still a risk of instability, and it is impossible to intelligently control the locking and unlocking at the most appropriate time.

[0055] Therefore, the present application proposes a way of intelligently controlling the locking and unlocking of the electronic lock to provide safety protection for the charging process of the electric vehicle.

[0056] The following will describe the implementation process of an electric vehicle electronic lock control method proposed in this application with reference to the accompanying drawings and specific embodiments.

[0057] Figure 1 This is a schematic diagram of a system for controlling an electric vehicle electronic lock provided in an embodiment of the present application. Figure 1 As shown, the system includes: an electronic lock 101 and a vehicle charger 102; wherein,

[0058] The electronic lock 101 is connected to the onboard charger 102. The onboard charger 102 is used to send a locking signal to the electronic lock 101 during the charging process. The electronic lock 101 is used to control the electronic lock motor to rotate forward and lock the electronic lock according to the locking signal sent by the onboard charger of the vehicle to the electronic lock during the charging process.

[0059] During the charging process, when a first preset voltage level is detected at the ground terminal of the electronic lock, the onboard charger 102 confirms that the electronic lock is locked successfully.

[0060] The on-board charger 102 is used to send an unlocking signal to the electronic lock 101 when charging is completed. The electronic lock 101 is used to control the electronic lock motor to reverse and unlock according to the unlocking signal sent by the on-board charger to the electronic lock when charging is completed;

[0061] When charging is completed and a first preset voltage level is detected at the ground terminal of the electronic lock, the onboard charger 102 confirms that the electronic lock is unlocked successfully.

[0062] The on-board charger 102 can be used to confirm whether the electric vehicle is to be charged. If so, it confirms that the electric vehicle is in the charging process and then sends a locking signal to complete the locking control; and after charging is completed, it confirms that the electric vehicle has completed charging and then sends an unlocking signal to complete the unlocking control; ensuring that the electric vehicle can be locked and unlocked in time during the charging process to ensure charging safety.

[0063] In addition to the above connections, the system also includes a battery management system 103 (Battery Management System, BMS), a meter unlock switch 104 and a power supply device 105 (On-Board Controller, OBC), which are used to further cooperate with the charging of the vehicle;

[0064] The battery management system 103 is connected to the onboard charger 102 via a Controller Area Network (CAN) and is used to send charging requirements to the onboard charger 102. For example, if 10A of electricity is required, a 10A charging instruction is sent to the onboard charger 102. After receiving the instruction, the onboard charger 102 confirms the charging process.

[0065] The meter unlock switch 104 is connected to the on-board charger 102 and the battery management system 103, respectively, and is used to control whether the on-board charger 102 and the battery management system 103 are charging. The meter unlock switch 104 can be controlled by an operator. Turning on the meter unlock switch 104 can instruct the on-board charger 102 and the battery management system 103 to start charging.

[0066] The power supply device 105 is connected to the first port set of the AC charging interface via a serial communication network (Local Interconnect Network, LIN), and is connected to the electronic lock 101 via the second port set of the AC charging interface; the electronic lock 101 is used to control the locking and unlocking status between the AC charging interface and the power supply device 105;

[0067] The battery management system 103 is connected to the third port set of the AC charging interface via a serial communication network, and is used to receive charging voltage and current.

[0068] The following will be combined Figure 1 、 Figure 2 、 Figure 3 The specific embodiments illustrate the implementation process of an electric vehicle electronic lock control method proposed in this application.

[0069] Figure 2 This is a schematic diagram of an electronic lock locking and unlocking control provided in an embodiment of the present application. Figure 2 As shown, the electronic lock includes: a motor M and a resistor R; wherein,

[0070] The motor M and the resistor R are connected in parallel, with a live wire (usually a red wire) leading out from one end of the motor M, and a neutral point (usually a black wire; if the neutral point is grounded, the wire leading out is called a zero wire; if the neutral point is not grounded, the wire leading out is called a neutral wire) and a ground wire (usually a yellow wire) leading out through a switch; the resistor R is a protective resistor, used to protect the motor M and prevent the motor M from overloading and overheating.

[0071] Figure 3 A schematic diagram of a process for controlling an electric vehicle electronic lock provided in an embodiment of the present application Figure 1 .like Figure 3 As shown, the method includes:

[0072] S301. During the charging process, a locking signal is sent to the electronic lock via the vehicle-mounted charger, and the electronic lock motor is controlled to rotate forward to lock according to the locking signal.

[0073] When charging an electric vehicle, you need to lock the charging port (which can be connected to the charging port of the vehicle charger) to the Figure 1The electronic lock is locked by the power supply interface of the power supply device, and after being locked, the charging interface and the power supply interface are tightly buckled and are not easy to fall off. The locking and unlocking processes of the electronic lock can be controlled by the vehicle-mounted charger. When the vehicle needs to be charged, the vehicle-mounted charger sends a locking signal to the electronic lock, and the locking signal controls the motor in the electronic lock to rotate in a certain direction. The direction is regarded as a forward direction. When the motor of the electronic lock rotates in the forward direction, the corresponding lock buckle of the charging interface is locked on the power supply interface.

[0074] S302, if a first preset level is detected at the ground end of the electronic lock, it is determined that the electronic lock is successfully locked.

[0075] Although the vehicle-mounted charger sends a locking signal to control the electronic lock to the locked state, the electronic lock may not be locked due to some reasons, and therefore it is further needed to confirm whether the locking process is successfully completed. The ground end of the electronic lock is detected by a switch. If the detected level meets the first preset level, it is indicated that the electronic lock normally completes the forward rotation of the motor according to the locking signal, and the vehicle-mounted charger can confirm that the electronic lock is successfully locked.

[0076] S303, when the charging is completed, the vehicle-mounted charger sends an unlocking signal to the electronic lock, and the motor of the electronic lock is controlled to reverse according to the unlocking signal.

[0077] After the electric vehicle is charged, the charging interface corresponding to the vehicle-mounted charger needs to be pulled out of the power supply interface of the power supply device. Before being pulled out, the charging interface needs to be unlocked, and then the subsequent operator can pull out the charging interface. When it is determined that the charging interface needs to be unlocked, the vehicle-mounted charger sends an unlocking signal to the electronic lock. The unlocking signal controls the motor in the electronic lock to rotate in the reverse direction of the forward direction, and the lock buckle of the charging interface locked on the power supply interface is loosened, and the unlocking is completed.

[0078] S304, if a second preset level is detected at the ground end of the electronic lock, it is determined that the electronic lock is successfully unlocked.

[0079] Although the vehicle-mounted charger sends an unlocking signal to control the electronic lock to the unlocked state, the electronic lock may not be unlocked due to some reasons, and therefore it is further needed to confirm whether the unlocking process is successfully completed. The ground end of the electronic lock is detected by a switch. If the detected level meets the first preset level, it is indicated that the electronic lock normally completes the reverse rotation of the motor according to the unlocking signal, and the vehicle-mounted charger can confirm that the electronic lock is successfully unlocked.

[0080] In the embodiment of the application, during the charging process, the electronic lock is instructed to be locked through the indication of the vehicle-mounted charger locking signal, so that the locking state is formed between the charging port of the vehicle-mounted charger and the power supply port of the power supply device, so that the charging process is not prone to falling off, and the charging safety is ensured; and after the charging is completed, the electronic lock can be unlocked through the indication of the vehicle-mounted charger unlocking signal, so that the operator can smoothly pull the charging port of the vehicle-mounted charger from the power supply port of the power supply device, and the entire charging process is smoothly completed.

[0081] The application will be described below in combination with Figure 1 , Figure 2 , Figure 4 and specific embodiments.

[0082] Figure 4 The application provides a flowchart of an electric vehicle electronic lock control method Figure 2 . As shown in Figure 4 , the method comprises:

[0083] S401, confirming that the vehicle is in the charging process through the charging signal received by the vehicle-mounted charger, wherein the charging signal is sent by the battery management system.

[0084] The charging indication received by the vehicle-mounted charger can come from the battery management system and the instrument unlocking switch. The charging demand of the electric vehicle during charging is managed by the battery management system, that is, the battery management system can send a charging signal to the vehicle-mounted charger, and the charging signal informs the vehicle-mounted charger that the electric vehicle needs to be charged and how much electricity needs to be charged.

[0085] S402, sending a locking signal to the electronic lock through the vehicle-mounted charger of the vehicle during the charging process.

[0086] After the vehicle-mounted charger receives the charging signal, it is confirmed that the charging process is started, and the electronic lock should be locked at this time, and a locking signal is sent to the electronic lock.

[0087] S403, according to the locking signal, grounding the neutral point end of the electronic lock and connecting the live wire end to the positive voltage, and controlling the electronic lock motor to rotate positively to lock.

[0088] The locking signal can direct the power supply of the electronic lock, connect the live wire end of the electronic lock to 12V positive voltage, and connect the neutral point end of the electronic lock to ground. At this time, the current flows from the neutral point end to the live wire end through the motor of the electronic lock, and the motor rotates positively under the influence of the current, so that the electronic lock is controlled to be locked.

[0089] S404, confirming that the vehicle charging is completed by the stop charging signal received by the on-board charger, the stop charging signal being sent by the battery management system.

[0090] After the electric vehicle completes charging, the battery management system will sense that the charging amount reaches the charging amount demand it sent, at this time, the battery management system will send a stop charging signal to the on-board charger, informing the on-board charger to stop charging and to be unlocked.

[0091] S405, sending an unlock signal to the electronic lock through the on-board charger of the vehicle when the charging is completed.

[0092] After the on-board charger receives the stop charging signal, it confirms that it is going to end charging, reduces its voltage and current, and sends an unlock signal to the electronic lock, allowing the electronic lock to be unlocked.

[0093] S406, according to the unlock signal, connecting the neutral point of the electronic lock to a positive voltage and the live wire to ground, and controlling the electronic lock motor to reverse and unlock.

[0094] The unlock signal can also direct the electronic lock to be powered on. Unlike the lock signal, the unlock signal connects the neutral point to a positive voltage of 12V and the live wire to ground, which is the opposite control of the lock signal. At this time, the current flows from the live wire to the neutral point through the motor of the electronic lock, and the motor changes its rotation direction under the influence of the current and rotates in the opposite direction, controlling the electronic lock to be unlocked.

[0095] After unlocking, the electronic lock can be turned off.

[0096] In an example, after the control of the electronic lock motor to reverse and unlock, the method further comprises:

[0097] Disconnecting the neutral point of the electronic lock through the on-board charger to turn off the electronic lock.

[0098] The on-board charger sends a power-off signal to the electronic lock to control the neutral point of the electronic lock to be disconnected, allowing the electronic lock to end the power-on process and complete the shutdown process.

[0099] In the embodiments of the present application, the rotation direction of the motor is controlled by controlling who connects the positive voltage and who connects the ground to the live wire and neutral point of the electronic lock, so as to control the motor to rotate in the forward or reverse direction, respectively, to complete the locking action when confirming charging or to complete the unlocking action when confirming that the charging is completed, thereby ensuring the safety of the entire charging process.

[0100] The implementation process of detecting whether the locking / unlocking is successful in the electric vehicle electronic lock control method proposed in the present application will be described below in conjunction with Figure 1 , Figure 2 , Figure 5 and specific embodiments.

[0101] Figure 5 A flowchart of an electric vehicle electronic lock control method provided by an embodiment of the present application Figure 3 As shown in Figure 5 , the method comprises:

[0102] S501, detecting whether the ground end of the electronic lock is within a first preset voltage range during charging.

[0103] Although the on-board charger can control the locking and unlocking of the electronic lock, the electronic lock may not respond in time, and if the electronic lock fails, etc., the locking and unlocking process cannot be completed. The specific way to detect whether the electronic lock completes the corresponding locking / unlocking action is to detect the voltage level of the ground end of the electronic lock.

[0104] During charging, the locking control is performed, and the voltage level of the ground end of the electronic lock is detected to determine whether it is within a first preset voltage range. If so, it is determined that the electronic lock is successfully locked. The detection of whether the voltage level is within the first preset voltage range can be detection of whether the ground end has a low voltage.

[0105] S502, if the voltage level of the ground end of the electronic lock is not within the first preset voltage range, after a first preset time interval, the voltage level of the ground end of the electronic lock is re-detected according to the remaining detection times.

[0106] If the voltage level of the ground end of the electronic lock is not within the first preset voltage range (e.g., the ground end does not have a low voltage), after a preset time interval, the voltage level of the ground end is re-detected according to the remaining detection times, for example, after 100 milliseconds, the ground end is detected 3 times in succession to determine whether the ground end has a low voltage.

[0107] S503, if the voltage level of the ground end of the electronic lock is within the first preset voltage range within the remaining detection times, it is determined that the electronic lock is successfully locked.

[0108] If the voltage level of the ground end of the electronic lock is within the first preset voltage range within the remaining detection times, it is determined that the locking power supply is successful, for example, if the ground end has a low voltage within the remaining 3 detection times, it is determined that the electronic lock is successfully locked.

[0109] Conversely, it is determined that a failure has occurred.

[0110] For example, if the voltage level of the ground end of the electronic lock is not within the first preset voltage range within the remaining detection times, it is determined that the electronic lock has failed.

[0111] If the level of the ground terminal of the electronic lock is not detected within the remaining detection times to be within the first preset level range, it means that the locking power supply fails, and the electronic lock has failed, which is reported to the on-board charger, and the on-board charger transmits it to the battery management system through the CAN bus, so that the battery management system makes further decisions.

[0112] S504, when the charging is completed, detecting whether the level of the ground terminal of the electronic lock is within the second preset level range.

[0113] When the charging is completed, unlocking control is needed, and the level of the ground terminal of the electronic lock is detected to be within the first preset level range. If yes, it is confirmed that the electronic lock is successfully unlocked; wherein detecting whether the level is within the first preset level range can be detecting whether the ground terminal has a low level.

[0114] S505, if the level of the ground terminal of the electronic lock is not within the second preset level range, after a second preset time interval, the level of the ground terminal of the electronic lock is re-detected according to the remaining detection times whether it is within the second preset level range.

[0115] The principle of detecting the level of the ground terminal of the electronic lock during the unlocking process is the same as that of detecting the level during the locking process, which will not be repeated here.

[0116] S506, if the level of the ground terminal of the electronic lock is detected within the remaining detection times to be within the second preset level range, it is confirmed that the electronic lock is successfully unlocked.

[0117] If the level of the ground terminal of the electronic lock is detected within the remaining detection times to be within the second preset level range, it means that the unlocking power supply is successful, for example, if the ground terminal has a low level within the remaining 3 detection times, it is confirmed that the electronic lock is successfully unlocked.

[0118] On the contrary, it is confirmed that a failure has occurred:

[0119] For example, if the level of the ground terminal of the electronic lock is not detected within the remaining detection times to be within the second preset level range, it is confirmed that the electronic lock has failed.

[0120] If the level of the ground terminal of the electronic lock is not detected within the remaining detection times to be within the second preset level range, it means that the unlocking power supply fails, and the electronic lock has failed, which is reported to the on-board charger, and the on-board charger transmits it to the battery management system through the CAN bus, so that the battery management system makes further decisions.

[0121] In addition to successfully completing the charging process, the charging process may also be interrupted:

[0122] For example, if the on-board charger receives an interrupt charging signal during the charging process, the method further comprises:

[0123] Based on the interrupt charging signal issued by the battery management system, the on-board charger reduces the charging current within a preset time threshold and sends an unlock signal to the electronic lock within a preset current, until it is confirmed that the electronic lock is unlocked or the electronic lock is confirmed to be faulty; wherein the battery management system is controlled by the instrument unlocking switch whether to issue the interrupt charging signal, and the instrument unlocking switch is controlled by the driver.

[0124] The interruption can be caused by human factors. If the charging personnel temporarily needs to end the charging due to other matters, the instrument unlocking switch can be controlled to interrupt the charging of the electric vehicle and complete the unlocking of the electronic lock.

[0125] When the battery management system needs to interrupt the charging according to the indication of the instrument unlocking switch, it will send an interrupt charging signal to the on-board charger. The interrupt charging signal is similar to the stop charging signal, both of which control the stop of charging and the unlocking.

[0126] After receiving the interrupt charging signal, the on-board charger will reduce the charging current within a preset time threshold and within a preset current to interrupt the charging; for example, within 100 milliseconds, the current is reduced to within 1A.

[0127] After interrupting the charging, the on-board charger sends an unlock signal to the electronic lock to unlock the electronic lock, and the subsequent unlocking can be successful. Then the battery management system, the on-board charger and the electronic lock enter a dormant state, or the electronic lock is confirmed to be faulty and the reporting is completed.

[0128] In the embodiment of the application, the ground level of the electronic lock is detected to detect whether the electronic lock is faulty and timely complete the reporting, so that corresponding measures can be taken and work is facilitated.

[0129] Figure 6 A kind of electric vehicle electronic lock control device provided in the embodiment of the application, as shown in Figure Figure 6 The device includes a first processing module 601, a first determination module 602, a second processing module 603 and a second determination module 604.

[0130] The first processing module 601 is configured to send a locking signal to the electronic lock through the on-board charger of the vehicle during the charging process, and control the electronic lock motor to rotate in a forward direction to lock according to the locking signal.

[0131] The first processing module 601 is further configured to confirm that the vehicle is in the charging process by a charging signal received by the on-board charger, and the charging signal is issued by the battery management system.

[0132] During the charging process, the on-board charger of the vehicle sends a locking signal to the electronic lock.

[0133] According to the locking signal, the neutral point of the electronic lock is grounded and the live wire is connected to a positive voltage, so as to control the electronic lock motor to rotate in a positive direction to lock.

[0134] The first determination module 602 is configured to determine that the electronic lock is successfully locked if a preset level is detected at the ground terminal of the electronic lock.

[0135] The first determination module 602 is further configured to detect whether the level of the ground terminal of the electronic lock is within a first preset level range.

[0136] If the level of the ground terminal of the electronic lock is not within the first preset level range, after a first preset time interval, it is detected again according to a remaining detection number whether the level of the ground terminal of the electronic lock is within the first preset level range.

[0137] If the level of the ground terminal of the electronic lock is detected within the first preset level range within the remaining detection number, it is determined that the electronic lock is successfully locked.

[0138] The second processing module 603 is configured to send an unlocking signal to the electronic lock through the vehicle-mounted charger when the charging is completed, and control the electronic lock motor to rotate in a reverse direction to unlock according to the unlocking signal.

[0139] The second processing module 603 is further configured to determine that the vehicle charging is completed through a stop charging signal received by the vehicle-mounted charger, and the stop charging signal is sent by a battery management system.

[0140] When the charging is completed, an unlocking signal is sent to the electronic lock through the vehicle-mounted charger of the vehicle.

[0141] According to the unlocking signal, the neutral point of the electronic lock is connected to a positive voltage and the live wire is grounded, so as to control the electronic lock motor to rotate in a reverse direction to unlock.

[0142] The second determination module 604 is configured to determine that the electronic lock is successfully unlocked if a preset level is detected at the ground terminal of the electronic lock.

[0143] The second determination module 604 is further configured to detect whether the level of the ground terminal of the electronic lock is within a second preset level range.

[0144] If the level of the ground terminal of the electronic lock is not within the second preset level range, after a second preset time interval, it is detected again according to a remaining detection number whether the level of the ground terminal of the electronic lock is within the second preset level range.

[0145] If the level of the ground terminal of the electronic lock is detected within the second preset level range within the remaining detection number, it is determined that the electronic lock is successfully unlocked.

[0146] The application also provides an electric vehicle electronic lock control device, comprising at least one processor and a memory.

[0147] The memory stores computer execution instructions.

[0148] The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the electric vehicle electronic lock control method.

[0149] Figure 7 A hardware schematic diagram of the electric vehicle electronic lock control device provided by the embodiment of the application is shown in the figure. Figure 7 As shown in the figure, the electric vehicle electronic lock control device 70 provided by the embodiment of the application comprises at least one processor 701 and a memory 702. The device 70 further comprises a communication component 703. The processor 701, the memory 702 and the communication component 703 are connected through a bus 704.

[0150] In the specific implementation process, the at least one processor 701 executes the computer execution instructions stored in the memory 702, so that the at least one processor 701 executes the electric vehicle electronic lock control method as described above.

[0151] The specific implementation process of the processor 701 can refer to the method embodiments described above, which has similar implementation principles and technical effects, and will not be described here again.

[0152] In the above-mentioned Figure 7 In the embodiment shown in the figure, it should be understood that the processor can be a central processing unit (English: Central Processing Unit, for short: CPU), and can also be other general-purpose processors, digital signal processors (English: Digital Signal Processor, for short: DSP), application specific integrated circuits (English: Application Specific Integrated Circuit, for short: ASIC) and the like. The general-purpose processor can be a microprocessor, or the processor can also be any conventional processor, etc. The steps of the method disclosed in the application can be directly embodied as the execution of the hardware processor, or executed by the combination of hardware and software modules in the processor.

[0153] The memory can contain a random access memory (Random Access Memory, for short: RAM), and can also include a non-volatile memory (Non-volatile Memory, for short: NVM), for example, at least one disk memory.

[0154] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application does not limit to only one bus or one type of bus.

[0155] The present application also provides a computer readable storage medium, wherein computer executable instructions are stored in the computer readable storage medium, and when the processor executes the computer executable instructions, the electric vehicle electronic lock control method is realized.

[0156] The computer readable storage medium described above can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special purpose computer.

[0157] An exemplary readable storage medium is coupled to the processor, so that the processor can read information from the readable storage medium, and can write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in the device.

[0158] The division of the units is only a logical functional division, and in actual implementation, there can be another division mode. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0159] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0160] In addition, each functional unit in various embodiments of the application can be integrated into one processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0161] If the functions are realized in the form of software functional units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the application or the part of the technical solutions that essentially contribute to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in various embodiments of the application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0162] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware. The aforementioned program can be stored in a computer readable storage medium. The program executes the steps of the above-mentioned method embodiments when executed; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, and various media that can store program codes.

[0163] Finally, it should be noted that those skilled in the art, after considering the specification and practicing the application disclosed herein, will easily think of other embodiments of the application. The application is intended to cover any variations, uses or adaptations of the application that follow the general principles of the application and include common knowledge or conventional technical means in the art that are not disclosed in the application, and is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the application is only limited by the appended claims.

Claims

1. A method for controlling an electric vehicle electronic lock, characterized in that: include: During the charging process, the vehicle's onboard charger sends a locking signal to the electronic lock, and the electronic lock motor is controlled to rotate forward to lock according to the locking signal; If a first preset level is detected at the ground terminal of the electronic lock, it is confirmed that the electronic lock is locked successfully; When charging is completed, the vehicle-mounted charger sends an unlocking signal to the electronic lock, and controls the electronic lock motor to reverse and unlock according to the unlocking signal; If a second preset level is detected at the ground terminal of the electronic lock, it is confirmed that the electronic lock is unlocked successfully; During the charging process, if a first preset level is detected at the ground terminal of the electronic lock, confirming that the electronic lock is locked successfully includes: The on-board charger detects whether the ground terminal of the electronic lock is within a first preset level range; If the level of the ground terminal of the electronic lock is not within the first preset level range, then after a first preset time interval, re-detect whether the level of the ground terminal of the electronic lock is within the first preset level range according to the remaining number of detections; If the level of the ground terminal of the electronic lock is detected to be within the first preset level range within the remaining detection times, it is confirmed that the electronic lock is locked successfully; Correspondingly, when charging is completed, if a second preset level is detected at the ground terminal of the electronic lock, confirming that the electronic lock is unlocked successfully includes: The on-board charger detects whether the voltage level of the ground terminal of the electronic lock is within a second preset voltage range; If the level of the ground terminal of the electronic lock is not within the second preset level range, re-detecting whether the level of the ground terminal of the electronic lock is within the second preset level range according to the remaining number of detections after a second preset time interval; If the electrical level of the ground terminal of the electronic lock is detected to be within the second preset electrical level range within the remaining number of detection times, it is confirmed that the electronic lock is unlocked successfully.

2. The method according to claim 1, characterized in that During the charging process, a locking signal is sent to the electronic lock through the vehicle's onboard charger, and the electronic lock motor is controlled to rotate forward to lock according to the locking signal, including: Confirming that the vehicle is in the charging process through a charging signal received by the on-board charger, wherein the charging signal is sent by a battery management system; During the charging process, the vehicle's onboard charger sends a locking signal to the electronic lock; According to the locking signal, the neutral point terminal of the electronic lock is grounded and the live wire terminal is connected to a positive voltage, so as to control the electronic lock motor to rotate forward and lock.

3. The method according to claim 1, characterized in that When charging is completed, the vehicle-mounted charger sends an unlock signal to the electronic lock, and controls the electronic lock motor to reverse and unlock according to the unlock signal, including: Confirming that charging of the vehicle is complete by receiving a stop charging signal from the on-board charger, wherein the stop charging signal is issued by a battery management system; When charging is completed, the vehicle's onboard charger sends an unlocking signal to the electronic lock; According to the unlocking signal, the neutral point of the electronic lock is connected to a positive voltage and the live wire is grounded, and the electronic lock motor is controlled to reverse and unlock.

4. The method according to claim 3, characterized in that After controlling the electronic lock motor to reverse and unlock, the method further includes: The neutral point of the electronic lock is disconnected by controlling the on-board charger to close the electronic lock.

5. The method according to claim 1, wherein If the level of the ground terminal of the electronic lock is not detected within the first preset level range within the remaining number of detection times, it is determined that the electronic lock is faulty; If the electrical level of the ground terminal of the electronic lock is not detected within the second preset electrical level range within the remaining number of detections, it is determined that the electronic lock is faulty.

6. The method according to claim 1, characterized in that If the onboard charger receives a charging interruption signal during the charging process, the method further includes: Based on the charging interruption signal sent by the battery management system, the on-board charger reduces the charging current to within a preset current within a preset time threshold and sends an unlocking signal to the electronic lock until it is confirmed that the electronic lock is unlocked or the electronic lock is faulty; wherein, the battery management system is controlled by the instrument unlocking switch to determine whether to send the charging interruption signal, and the instrument unlocking switch is controlled by the driver.

7. An electric vehicle electronic lock control device, characterized in that: include: A first processing module is configured to send a locking signal to the electronic lock via the vehicle's onboard charger during charging, and control the electronic lock motor to rotate forward to lock the lock according to the locking signal; a first determination module, configured to confirm that the electronic lock is locked successfully if a first preset level is detected at the ground terminal of the electronic lock; A second processing module is configured to send an unlocking signal to the electronic lock via the onboard charger when charging is completed, and control the electronic lock motor to reverse and unlock according to the unlocking signal; a second determination module, configured to confirm that the electronic lock is unlocked successfully if a second preset level is detected at the ground terminal of the electronic lock; During the charging process, the first determination module is specifically configured to detect whether the ground terminal of the electronic lock is within a first preset level range by the on-board charger; If the level of the ground terminal of the electronic lock is not within the first preset level range, then after a first preset time interval, re-detect whether the level of the ground terminal of the electronic lock is within the first preset level range according to the remaining number of detections; If the level of the ground terminal of the electronic lock is detected to be within the first preset level range within the remaining detection times, it is confirmed that the electronic lock is locked successfully; Correspondingly, when charging is completed, the second determination module is specifically configured to detect whether the level of the ground terminal of the electronic lock is within a second preset level range by the on-board charger; If the level of the ground terminal of the electronic lock is not within the second preset level range, re-detecting whether the level of the ground terminal of the electronic lock is within the second preset level range according to the remaining number of detections after a second preset time interval; If the electrical level of the ground terminal of the electronic lock is detected to be within the second preset electrical level range within the remaining number of detection times, it is confirmed that the electronic lock is unlocked successfully.

8. An electric vehicle electronic lock control device, characterized in that: include: at least one processor and memory; The memory stores computer-executable instructions; The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the electric vehicle electronic lock control method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the electric vehicle electronic lock control method according to any one of claims 1 to 6 are implemented.

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