New energy vehicle charging control method and vehicle

Abstract

The invention provides a new energy vehicle charging control method, and belongs to the field of new energy vehicle whole vehicle control, when a vehicle is in a charging state and a charging port is locked, a vehicle body domain controller monitors an unlocking signal, and if the unlocking signal is triggered when the distance between a remote control key and the vehicle body domain controller is smaller than a preset distance, the vehicle body domain controller is unlocked. If yes, the user may only return to the vehicle to take articles and does not want to stop charging, and at the moment, only the vehicle door is unlocked, the charging port is kept in a locked state, and the charging current is not reduced. On the contrary, if the unlocking signal is triggered by an unlocking key on the remote control key or an unlocking key arranged on the handle of the vehicle door, it is indicated that the user possibly needs to unlock the charging port and stop charging, at the moment, the charging port is unlocked, and the charging current is reduced. Therefore, whether the charging port needs to be unlocked and the charging current needs to be reduced is flexibly determined according to the actual operation of the user, the operation of the user is simplified, and the efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of whole vehicle control of new energy vehicles, and in particular to a charging control method and vehicle for new energy vehicles. Background Art

[0002] With the gradual improvement of supporting facilities such as charging piles and the increasing manifestation of the economic advantages of new energy vehicles, new energy vehicles have already had a high penetration rate.

[0003] After the charging gun is inserted into the charging port of a new energy vehicle, the lock / unlock status and the charging / uncharging status of the charging gun will generally be synchronized with the lock / unlock status of the entire vehicle. When the entire vehicle is locked, the charging gun is locked and cannot be directly unplugged. When the entire vehicle is unlocked, the charging gun is unlocked and the charging status is switched to the uncharging status.

[0004] Since some models are equipped with the function of automatically unlocking the vehicle when the remote control key approaches the vehicle, and automatically unlocking the vehicle when the remote control key is away from the vehicle, in actual use, the locked / unlocked status and charged / uncharged status of the charging gun may be inconsistent with the actual needs of the user. For example, charging is accidentally stopped when the user still wants to continue charging, and the user needs to operate again to continue charging, or the user cannot conveniently stop charging and unlock the charging gun when he wants to stop charging and drive the vehicle. Summary of the invention

[0005] In view of this, the present application provides a new energy vehicle charging control method, which can simplify user operations and improve efficiency. The method includes:

[0006] On the one hand, the present application provides a new energy vehicle charging control method, the method comprising:

[0007] When a charging gun is connected to a charging port of a vehicle and charging is performed with a first current, and the charging port and a door are both in a locked state, an unlocking signal is monitored using a body domain controller.

[0008] When the vehicle body domain controller monitors the unlock signal, the trigger type of the unlock signal is determined.

[0009] When the trigger type of the unlock signal is distance trigger, the body domain controller unlocks the door and controls the charging port to remain locked.

[0010] When the trigger type of the unlock signal is manual trigger, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to a second current, wherein the second current is less than the first current. The distance trigger means that the unlock signal is triggered when the distance between the remote control key and the body domain controller is less than a preset distance. The manual trigger means that the unlock signal is triggered when the first unlock button on the remote control key or the second unlock button set on the door handle is pressed.

[0011] Optionally, the method further comprises:

[0012] When the vehicle body domain controller monitors the unlocking signal, the charging time is obtained.

[0013] Determine whether the charging time is less than a first preset time.

[0014] When the charging time is less than the first preset time, the body domain controller unlocks the door and controls the charging port to remain locked.

[0015] When the charging time is greater than the first preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0016] Optionally, the method further comprises:

[0017] When the unlocking signal is monitored by the body domain controller, the current battery power percentage is obtained from the battery management system.

[0018] Determine whether the current battery power percentage is less than a preset percentage.

[0019] When the current battery power percentage is less than the preset percentage, the body domain controller unlocks the door and controls the charging port to remain locked.

[0020] When the current battery power percentage is not less than the preset percentage, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0021] Optionally, the method further comprises:

[0022] When the body domain controller continuously monitors two unlocking signals within the second preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0023] Optionally, the method further comprises:

[0024] After the charging port is unlocked, the body domain controller is used to monitor the locking signal.

[0025] When a third preset time has passed and no locking signal is monitored by the vehicle body domain controller, the charging port is locked.

[0026] In another aspect, the present application provides a vehicle, wherein the vehicle is configured as follows:

[0027] When a charging gun is connected to a charging port of a vehicle and charging is performed with a first current, and the charging port and a door are both in a locked state, an unlocking signal is monitored using a body domain controller.

[0028] When the vehicle body domain controller monitors the unlock signal, the trigger type of the unlock signal is determined.

[0029] When the trigger type of the unlock signal is distance trigger, the body domain controller unlocks the door and controls the charging port to remain locked.

[0030] When the trigger type of the unlock signal is manual trigger, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to a second current, wherein the second current is less than the first current. The distance trigger means that the unlock signal is triggered when the distance between the remote control key and the body domain controller is less than a preset distance. The manual trigger means that the unlock signal is triggered when the first unlock button on the remote control key or the second unlock button set on the door handle is pressed.

[0031] Optionally, the vehicle is further configured to:

[0032] When the vehicle body domain controller monitors the unlocking signal, the charging time is obtained;

[0033] Determine whether the charging time is less than a first preset time.

[0034] When the charging time is less than the first preset time, the body domain controller unlocks the door and controls the charging port to remain locked.

[0035] When the charging time is greater than the first preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0036] Optionally, the vehicle is further configured to:

[0037] When the unlocking signal is monitored by the body domain controller, the current battery power percentage is obtained from the battery management system.

[0038] Determine whether the current battery power percentage is less than a preset percentage.

[0039] When the current battery power percentage is less than the preset percentage, the body domain controller unlocks the door and controls the charging port to remain locked.

[0040] When the current battery power percentage is not less than the preset percentage, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0041] Optionally, the vehicle is further configured to:

[0042] When the body domain controller continuously monitors two unlocking signals within the second preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0043] Optionally, the vehicle is further configured to:

[0044] After the charging port is unlocked, the body domain controller is used to monitor the locking signal.

[0045] When a third preset time has passed and no locking signal is monitored by the vehicle body domain controller, the charging port is locked.

[0046] Using the new energy vehicle charging control method provided by the present application, when the vehicle is in the charging state and the charging port and the door are locked, the unlocking signal is monitored by the body domain controller. If the unlocking signal is triggered when the distance between the remote control key and the body domain controller is less than the preset distance, it means that the user may just return to the vehicle to pick up items and does not want to stop charging. At this time, only the door is unlocked, the charging port is kept locked, and normal charging is maintained without reducing the charging current. On the contrary, if the unlocking signal is triggered by the first unlocking button on the remote control key or the second unlocking button set on the door handle, it means that the user may really need to unlock the charging port and stop charging. At this time, the door and the charging port are unlocked, and the charging current is reduced to ensure safety. In this way, it is flexibly determined whether it is necessary to unlock the charging port and reduce the charging current according to the actual operation of the user, avoiding the user from operating to unlock the charging port or reconnect the charging alone, simplifying the user's operation and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 A flow chart of a new energy vehicle charging control method provided in an embodiment of the present application;

[0049] Figure 2 Another flow chart of the new energy vehicle charging control method provided in the embodiment of the present application;

[0050] Figure 3 An architectural diagram of a vehicle provided in accordance with an embodiment of the present application. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] The present application embodiment provides a new energy vehicle charging control method, such as Figure 1 As shown, the method includes steps S101, S102, S103 and S104, wherein:

[0053] In step S101, when a charging gun is connected to a charging port of a vehicle and charging is performed with a first current, and the charging port and the vehicle door are both in a locked state, the vehicle body domain controller is used to monitor an unlocking signal.

[0054] In step S102, when the unlocking signal is monitored by the vehicle body domain controller, the triggering type of the unlocking signal is determined.

[0055] In step S103, when the trigger type of the unlocking signal is distance triggering, the body domain controller unlocks the door and controls the charging port to remain locked.

[0056] In step S104, when the trigger type of the unlocking signal is manual triggering, the vehicle body domain controller unlocks the door and the charging port, and the vehicle inverter reduces the charging current to the second current.

[0057] Among them, the second current is smaller than the first current, the distance trigger means that the unlocking signal is triggered when the distance between the remote control key and the vehicle body domain controller is smaller than a preset distance, and the manual trigger means that the unlocking signal is triggered when the first unlocking button on the remote control key or the second unlocking button set on the door handle is pressed.

[0058] In some optional embodiments, the method further comprises:

[0059] When the vehicle body domain controller monitors the unlocking signal, the charging time is obtained.

[0060] Determine whether the charging time is less than a first preset time.

[0061] When the charging time is less than the first preset time, the body domain controller unlocks the door and controls the charging port to remain locked.

[0062] When the charging time is greater than the first preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0063] In some optional embodiments, the method further comprises:

[0064] When the unlocking signal is monitored by the body domain controller, the current battery power percentage is obtained from the battery management system.

[0065] Determine whether the current battery power percentage is less than a preset percentage.

[0066] When the current battery power percentage is less than the preset percentage, the body domain controller unlocks the door and controls the charging port to remain locked.

[0067] When the current battery power percentage is not less than the preset percentage, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0068] In some optional embodiments, the method further comprises:

[0069] When the body domain controller continuously monitors two unlocking signals within the second preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0070] In some optional embodiments, the method further comprises:

[0071] After the charging port is unlocked, the body domain controller is used to monitor the locking signal.

[0072] When a third preset time has passed and no locking signal is monitored by the vehicle body domain controller, the charging port is locked.

[0073] Using the new energy vehicle charging control method provided by the present application, when the vehicle is in the charging state and the charging port and the door are locked, the unlocking signal is monitored by the body domain controller. If the unlocking signal is triggered when the distance between the remote control key and the body domain controller is less than the preset distance, it means that the user may just return to the vehicle to pick up items and does not want to stop charging. At this time, only the door is unlocked, the charging port is kept locked, and normal charging is maintained without reducing the charging current. On the contrary, if the unlocking signal is triggered by the first unlocking button on the remote control key or the second unlocking button set on the door handle, it means that the user may really need to unlock the charging port and stop charging. At this time, the door and the charging port are unlocked, and the charging current is reduced to ensure safety. In this way, it is flexibly determined whether it is necessary to unlock the charging port and reduce the charging current according to the actual operation of the user, avoiding the user from operating to unlock the charging port or reconnect the charging alone, simplifying the user's operation and improving efficiency.

[0074] The present application embodiment provides a new energy vehicle charging control method, such as Figure 2 As shown, the method includes steps S201, S202, S203, S204, S205 and S206, wherein:

[0075] In step S201, when a charging gun is connected to a charging port of a vehicle and charging is performed with a first current, and both the charging port and the vehicle door are in a locked state, the vehicle body domain controller is used to monitor an unlocking signal.

[0076] In some optional embodiments, the charging port may refer to a slow charging port (receiving DC or AC power) or a fast charging port (receiving DC power). When the user inserts the charging gun into the charging port and uses NFC, Bluetooth or code scanning to control the charging pile to start charging, the charging port of the vehicle will establish an electrical connection with the charging gun, and the vehicle will be charged with the first current under the control of the on-board inverter.

[0077] In step S202, when the unlocking signal is monitored by the vehicle body domain controller, the triggering type of the unlocking signal is determined.

[0078] It is understandable that for a vehicle equipped with the function of automatically unlocking the vehicle when the remote control key approaches the vehicle and automatically unlocking the vehicle when it moves away from the vehicle, when the unlocking signal is monitored by the body domain controller, it indicates that the following three situations may have occurred:

[0079] Case 1: A user accidentally approaches the vehicle with the remote control key and enters the unlocking range, triggering the function of automatically unlocking the vehicle when the remote control key approaches the vehicle. However, the user does not actually want to unlock the vehicle, let alone unlock the charging port and stop charging (after stopping charging, the user needs to repeatedly use NFC, Bluetooth or scan code to control the charging pile to start charging again).

[0080] Case 2: The user approaches the vehicle with the remote control key and enters the unlocking range, triggering the function of automatic unlocking of the vehicle when the remote control key approaches the vehicle. However, the user actually just wants to return to the car to retrieve the forgotten items and does not want to unlock the charging port and stop charging (after stopping charging, the user needs to reuse NFC, Bluetooth or scanning the code to control the charging pile to start charging again).

[0081] Case 3: The user approaches the vehicle with the remote control key and enters the unlocking range, triggering the function of automatically unlocking the vehicle when the remote control key approaches the vehicle, and the user really wants to unlock the charging port and stop charging.

[0082] When the first two situations occur, unlocking the charging port and stopping charging will obviously result in the user having to repeatedly use NFC, Bluetooth or code scanning to control the charging pile to start charging again after stopping charging, which is very cumbersome. The triggering conditions for the first two situations are that the user approaches the vehicle with the remote control key and enters the unlocking range, triggering the function of the vehicle automatically unlocking when the remote control key approaches the vehicle. Therefore, when the unlocking signal is monitored by the body domain controller, it is necessary to further determine the triggering type of the unlocking signal and adopt the corresponding charging control strategy according to the triggering type of the unlocking signal to meet the actual needs of users as much as possible and simplify user operations.

[0083] In step S203, when the trigger type of the unlocking signal is distance triggering, the vehicle body domain controller unlocks the vehicle door and controls the charging port to remain locked.

[0084] Distance trigger means that the unlocking signal is triggered when the distance between the remote control key and the vehicle body domain controller is less than the preset distance.

[0085] It is understandable that when the trigger type of the unlock signal is distance trigger, it indicates that the user is approaching the vehicle with the remote control key and has entered the unlocking range, triggering the function of automatically unlocking the vehicle when the remote control key is close to the vehicle. At this time, if the user's needs correspond to the above-mentioned situations 1 and 2, that is, when the user does not want to stop charging, the charging port should not be unlocked, and the first current should continue to be maintained for charging. Therefore, when it is determined that the trigger type of the unlock signal is distance trigger, the body domain controller only unlocks the door and controls the charging port to remain locked. At the same time, the on-board inverter continues to maintain the charging current as the first current, that is, normal charging continues.

[0086] If the user's needs correspond to the above situation 3, that is, the user wants to stop charging and unlock the charging port so that he can unplug the charging gun and drive the vehicle away. In this case, step S203 cannot meet the user's needs. However, the user can also stop charging and unlock the charging port conveniently and quickly by only one additional manual operation. The manual operation can be pressing the first unlock button on the remote control key, or pressing the second unlock button set on the door handle. For further implementation, see step S204:

[0087] In step S204, when the trigger type of the unlocking signal is manual triggering, the vehicle body domain controller unlocks the vehicle door and the charging port, and the vehicle inverter reduces the charging current to the second current.

[0088] It can be understood that manual triggering means that the unlocking signal is triggered when a first unlocking button on the remote control key or a second unlocking button provided on the door handle is pressed.

[0089] The on-board inverter reduces the charging current to a second current, which is less than the first current, thereby ensuring safety when plugging and unplugging the charging gun. The second current can be 16A.

[0090] It is understandable that after the user approaches the vehicle with the remote control key and enters the unlocking range, triggering the function of automatic unlocking of the vehicle when the remote control key approaches the vehicle, although step S203 cannot unlock the charging port and stop charging, the user is required to use an extra manual operation and further use step S204 to unlock the charging port and stop charging. However, compared with the operation of the user using NFC, Bluetooth or scanning a code to control the charging pile to start charging again after charging is erroneously stopped, the extra manual operation (i.e., pressing the first unlocking button on the remote control key, or pressing the second unlocking button set on the door handle) is obviously simpler and less time-consuming, thereby improving user efficiency.

[0091] It is understandable that if the user accidentally touches the first unlock button on the remote control key, or accidentally touches the second unlock button set on the car door handle, the charging port will be unlocked and charging will stop, but the user does not actually want to unlock the charging port and stop charging. At this time, a method is needed to automatically re-lock the charging port and resume charging to simplify user operations.

[0092] Therefore, after the charging port is unlocked in step S204, the method further includes steps S205 and S206:

[0093] In step S205, the vehicle body domain controller is used to monitor the locking signal.

[0094] The locking signal can be triggered when the distance between the remote control key and the vehicle body domain controller is greater than a preset distance, or it can be triggered by using the first lock button on the remote control key or the second lock button set on the door handle (the second lock button and the second unlock button set on the door handle can be the same button, and its function switches alternately between locking and unlocking according to the operation pressed by the user).

[0095] In step S206, when the third preset time has passed and no locking signal is monitored by the vehicle body domain controller, the charging port is locked.

[0096] It is understandable that when the user unlocks the charging port due to accidental touch, if the locking signal is still not monitored after the third preset time, it means that the user does not know that his operation caused the charging port to be unlocked, and after a period of time, no corresponding operation is performed to re-lock it. At this time, the charging port can be directly locked to prevent others from unplugging the charging gun.

[0097] In some optional embodiments, after locking the charging port using step S206, if the charging gun and the charging port are still not monitored to be disconnected after a third preset time, and the charging current is still not monitored to be restored to the first current after the third preset time, the vehicle-mounted inverter controls the charging current to be restored to the first current.

[0098] The third preset time may be 10 minutes.

[0099] It is understandable that when the user stops charging due to an accidental touch, if the charging gun and the charging port are still not monitored to be disconnected after the third preset time, it means that the user is unaware that his operation caused the charging to stop, and after a period of time, no corresponding operation is performed to resume charging. At this time, based on step S206, the vehicle-mounted inverter can control the charging current to return to the first current, that is, resume normal charging.

[0100] It is understandable that whether the user specifically wants to stop charging is generally related to the charging time and the current battery power percentage. If the charging time is very short, or the current battery power percentage is very low, if an unlocking signal is monitored at this time, it generally indicates that the user just touched it by mistake, or just wants to return to the vehicle to get something, and does not want to stop charging.

[0101] Therefore, in some optional embodiments, the method further comprises:

[0102] When the vehicle body domain controller monitors the unlocking signal, the charging time is obtained.

[0103] Determine whether the charging time is less than a first preset time.

[0104] When the charging time is less than the first preset time, the body domain controller unlocks the door and controls the charging port to remain locked.

[0105] It is understandable that when the charging time is less than the first preset time, the body domain controller unlocks the door, controls the charging port to remain locked, and the on-board inverter simultaneously maintains the charging current at the first current.

[0106] When the charging time is greater than the first preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0107] The first preset time may be 5 minutes.

[0108] In some optional embodiments, the method further comprises:

[0109] When the unlocking signal is monitored by the body domain controller, the current battery power percentage is obtained from the battery management system.

[0110] Determine whether the current battery power percentage is less than a preset percentage.

[0111] When the current battery power percentage is less than the preset percentage, the body domain controller unlocks the door and controls the charging port to remain locked.

[0112] It is understandable that when the current battery power percentage is less than the preset percentage, the body domain controller unlocks the door, controls the charging port to remain locked, and the on-board inverter simultaneously maintains the charging current at the first current.

[0113] When the current battery power percentage is not less than the preset percentage, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0114] The preset percentage may be 10%.

[0115] In some optional embodiments, the method further comprises:

[0116] When the body domain controller continuously monitors two unlocking signals within the second preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

[0117] It is understandable that if the user triggers the unlock signal twice in a short period of time, it means that the unlock signal is not generated by the user's accidental touch. Or the user approaches the vehicle with the remote control key and enters the unlocking range, triggering the function of automatic unlocking of the vehicle when the remote control key approaches the vehicle, and hopes to unlock the charging port and stop charging, and unplug the charging gun. However, due to step S203, the user finds that he cannot unplug the charging gun at this time, so he can leave the unlocking range and enter the unlocking range again. At this time, the condition of triggering the unlock signal twice in a short period of time can be met. In this case, the triggering mode of the unlocking signal can be ignored, and the door and the charging port can be unlocked directly. The on-board inverter reduces the charging current to the second current, so that the user can successfully unplug the charging gun after leaving the unlocking range and entering the unlocking range again.

[0118] In some optional embodiments, if the vehicle inverter receives a locking signal and the vehicle inverter is in a charging, discharging, heating, etc. state, the charging port is locked.

[0119] In some optional embodiments, if the charging port is a slow charging port, the charging port can also be connected to a discharge gun to achieve external discharge. When the discharge gun is connected to the charging port, if the release switch set on the discharge gun is pressed, the charging port is unlocked.

[0120] If the charging port is unlocked and locked three times within the fourth preset time, the electronic lock of the charging port reports an error state and no longer unlocks or locks the charging port within a power-on cycle.

[0121] The charging port may have terminals such as CC, CP, L, N, PE, etc., which undertake the signal transmission and current output between the charging pile and the vehicle inverter, and at the same time execute the control requirements of the vehicle inverter, as well as the locking or unlocking of the electronic lock of the charging port.

[0122] The vehicle also includes a low-voltage wiring harness, which is used to connect the charging port, on-board inverter, body domain controller, etc. to form a low-voltage circuit to ensure the transmission of each signal and power.

[0123] Using the new energy vehicle charging control method provided by the present application, when the vehicle is in the charging state and the charging port and the door are locked, the unlocking signal is monitored by the body domain controller. If the unlocking signal is triggered when the distance between the remote control key and the body domain controller is less than the preset distance, it means that the user may just return to the vehicle to pick up items and does not want to stop charging. At this time, only the door is unlocked, the charging port is kept locked, and normal charging is maintained without reducing the charging current. On the contrary, if the unlocking signal is triggered by the first unlocking button on the remote control key or the second unlocking button set on the door handle, it means that the user may really need to unlock the charging port and stop charging. At this time, the door and the charging port are unlocked, and the charging current is reduced to ensure safety. In this way, it is flexibly determined whether it is necessary to unlock the charging port and reduce the charging current according to the actual operation of the user, avoiding the user from operating to unlock the charging port or reconnect the charging alone, simplifying the user's operation and improving efficiency.

[0124] The present application also provides a vehicle, such as Figure 3 As shown, the vehicle includes a body domain controller 301 and a vehicle inverter 302 connected by a CAN bus, and the vehicle is configured as follows:

[0125] When a charging gun is connected to the charging port of the vehicle and charging is performed with a first current, and the charging port and the vehicle door are both in a locked state, the vehicle body domain controller 301 is used to monitor the unlocking signal.

[0126] When the vehicle body domain controller 301 monitors the unlock signal, the trigger type of the unlock signal is determined.

[0127] When the trigger type of the unlocking signal is distance triggering, the body domain controller 301 unlocks the vehicle door and controls the charging port to remain locked.

[0128] When the trigger type of the unlock signal is manual trigger, the body domain controller 301 unlocks the door and the charging port, and the vehicle inverter 302 reduces the charging current to a second current, wherein the second current is less than the first current. The distance trigger means that the unlock signal is triggered when the distance between the remote control key and the body domain controller 301 is less than a preset distance. The manual trigger means that the unlock signal is triggered when the first unlock button on the remote control key or the second unlock button set on the door handle is pressed.

[0129] Optionally, the vehicle is further configured to:

[0130] When the vehicle body domain controller 301 monitors the unlocking signal, the charging time is acquired.

[0131] Determine whether the charging time is less than a first preset time.

[0132] When the charging time is less than the first preset time, the body domain controller 301 unlocks the vehicle door and controls the charging port to remain locked.

[0133] When the charging time is greater than the first preset time, the vehicle body domain controller 301 unlocks the vehicle door and the charging port, and the vehicle inverter 302 reduces the charging current to the second current.

[0134] Optionally, the vehicle is further configured to:

[0135] When the vehicle body domain controller 301 monitors the unlocking signal, the current battery power percentage is obtained from the battery management system.

[0136] Determine whether the current battery power percentage is less than a preset percentage.

[0137] When the current battery power percentage is less than a preset percentage, the body domain controller 301 unlocks the vehicle door and controls the charging port to remain locked.

[0138] When the current battery power percentage is not less than the preset percentage, the vehicle body domain controller 301 unlocks the vehicle door and the charging port, and the vehicle inverter 302 reduces the charging current to the second current.

[0139] Optionally, the vehicle is further configured to:

[0140] When the vehicle body domain controller 301 continuously monitors two unlocking signals within the second preset time, the vehicle body domain controller 301 unlocks the vehicle door and the charging port, and the vehicle inverter 302 reduces the charging current to the second current.

[0141] Optionally, the vehicle is further configured to:

[0142] After the charging port is unlocked, the body domain controller 301 is used to monitor the locking signal.

[0143] When the third preset time has passed and no locking signal is monitored by the vehicle body domain controller 301 , the charging port is locked.

[0144] When the vehicle provided by the present application is in a charging state and the charging port and the door are locked, the unlocking signal is monitored by the body domain controller 301. If the unlocking signal is triggered when the distance between the remote control key and the body domain controller 301 is less than the preset distance, it means that the user may just return to the vehicle to pick up items and does not want to stop charging. At this time, only the door is unlocked, the charging port is kept locked, normal charging is maintained, and the charging current is not reduced. On the contrary, if the unlocking signal is triggered by the first unlocking button on the remote control key or the second unlocking button set on the door handle, it means that the user may indeed need to unlock the charging port and stop charging. At this time, the door and the charging port are unlocked, and the charging current is reduced to ensure safety. In this way, it is flexibly determined whether the charging port needs to be unlocked and the charging current needs to be reduced according to the actual operation of the user, avoiding the user from operating to unlock the charging port or reconnect the charging alone, simplifying the user's operation and improving efficiency.

[0145] In the present application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0146] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0147] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

[0148] The above description is only for the purpose of facilitating those skilled in the art to understand the technical solution of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A new energy vehicle charging control method, characterized in that: The method comprises: When a charging port of the vehicle is connected to a charging gun and charged with a first current, and the charging port and the door are both in a locked state, monitoring an unlocking signal using a body domain controller; When the unlock signal is monitored by the vehicle body domain controller, determining a trigger type of the unlock signal; When the trigger type of the unlock signal is distance trigger, the body domain controller unlocks the door and controls the charging port to remain in a locked state; When the trigger type of the unlock signal is manual trigger, the body domain controller unlocks the vehicle door and the charging port, and the on-board inverter reduces the charging current to a second current, wherein the second current is less than the first current. Distance triggering means that the unlock signal is triggered when the distance between the remote control key and the body domain controller is less than a preset distance. Manual triggering means that the unlock signal is triggered when the first unlock button on the remote control key or the second unlock button set on the handle of the vehicle door is pressed.

2. The new energy vehicle charging control method according to claim 1, characterized in that: The method further comprises: When the unlocking signal is monitored by the vehicle body domain controller, a charging time is acquired; Determining whether the charging time is less than a first preset time; When the charging time is less than the first preset time, the body domain controller unlocks the door and controls the charging port to remain in a locked state; When the charging time is greater than the first preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

3. The new energy vehicle charging control method according to claim 1, characterized in that: The method further comprises: When the unlocking signal is monitored by the vehicle body domain controller, the current battery power percentage is obtained from the battery management system; Determine whether the current battery power percentage is less than a preset percentage; When the current battery power percentage is less than the preset percentage, the body domain controller unlocks the vehicle door and controls the charging port to remain locked; When the current battery power percentage is not less than the preset percentage, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

4. The new energy vehicle charging control method according to claim 1, characterized in that: The method further comprises: When the vehicle body domain controller continuously monitors two unlocking signals within a second preset time, the vehicle body domain controller unlocks the vehicle door and the charging port, and the vehicle-mounted inverter reduces the charging current to the second current.

5. The new energy vehicle charging control method according to claim 1, characterized in that: The method further comprises: After the charging port is unlocked, monitoring a locking signal using the vehicle body domain controller; When a third preset time has passed and the locking signal is not monitored by the vehicle body domain controller, the charging port is locked.

6. A vehicle, characterized in that: The vehicle is configured as follows: When a charging port of the vehicle is connected to a charging gun and charged with a first current, and the charging port and the door are both in a locked state, monitoring an unlocking signal using a body domain controller; When the unlock signal is monitored by the vehicle body domain controller, determining a trigger type of the unlock signal; When the trigger type of the unlock signal is distance trigger, the body domain controller unlocks the door and controls the charging port to remain in a locked state; When the trigger type of the unlock signal is manual trigger, the body domain controller unlocks the vehicle door and the charging port, and the on-board inverter reduces the charging current to a second current, wherein the second current is less than the first current. Distance triggering means that the unlock signal is triggered when the distance between the remote control key and the body domain controller is less than a preset distance. Manual triggering means that the unlock signal is triggered when the first unlock button on the remote control key or the second unlock button set on the handle of the vehicle door is pressed.

7. The vehicle according to claim 6, characterized in that The vehicle is also configured to: When the unlocking signal is monitored by the vehicle body domain controller, a charging time is acquired; Determining whether the charging time is less than a first preset time; When the charging time is less than the first preset time, the body domain controller unlocks the door and controls the charging port to remain in a locked state; When the charging time is greater than the first preset time, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

8. The vehicle according to claim 6, characterized in that The vehicle is also configured to: When the unlocking signal is monitored by the vehicle body domain controller, the current battery power percentage is obtained from the battery management system; Determine whether the current battery power percentage is less than a preset percentage; When the current battery power percentage is less than the preset percentage, the body domain controller unlocks the vehicle door and controls the charging port to remain locked; When the current battery power percentage is not less than the preset percentage, the body domain controller unlocks the door and the charging port, and the on-board inverter reduces the charging current to the second current.

9. The vehicle according to claim 6, characterized in that The vehicle is also configured to: When the vehicle body domain controller continuously monitors two unlocking signals within a second preset time, the vehicle body domain controller unlocks the vehicle door and the charging port, and the vehicle-mounted inverter reduces the charging current to the second current.

10. The vehicle according to claim 6, characterized in that The vehicle is also configured to: After the charging port is unlocked, monitoring a locking signal using the vehicle body domain controller; When a third preset time has passed and the locking signal is not monitored by the vehicle body domain controller, the charging port is locked.

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