Relay control method, system and equipment for battery state jump abnormity and medium

Abstract

The invention discloses a relay control method, system and device for battery state jump abnormity and a medium, and the method comprises the steps: obtaining the state of each relay in a battery charging and discharging loop, the current battery high-voltage state and the to-be-jumped target battery high-voltage state when the battery high-voltage state jump abnormity occurs; according to the states of the relays, the current battery high-voltage state and the to-be-jumped target battery high-voltage state, the working condition type of battery high-voltage state jump is determined, and according to the working condition type of battery high-voltage state jump, the relays are controlled to conduct state switching. And the high-voltage state of the battery is returned to a drivable state or an unpowered output state. According to the method, when the high-voltage state of the battery jumps abnormally, the withdrawn high-voltage state of the battery is flexibly judged based on different working condition types, meanwhile, the actual state of the relay is kept consistent with the high-voltage state of the battery, and the accuracy of information interaction with other functions or controllers is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of relay control, and in particular relates to a relay control method, system, device and medium for abnormal battery state jump. Background Art

[0002] The battery management system is an important slave controller in new energy vehicles. One of its very important functions is to control the relay based on the control instructions issued by the vehicle controller or the internal status of the battery.

[0003] The battery management system needs to calculate the high-voltage state while controlling the relay. The internal functional modules of the battery management system and the vehicle controller will perform corresponding operations based on the high-voltage state, such as charging interaction, driving loads, and discharging residual voltage. A prerequisite for these operations to proceed smoothly is that the actual state of the relay corresponds correctly to the high-voltage state of the battery. Otherwise, the actual opening and closing state of the relay may be inconsistent with the high-voltage state of the battery, resulting in operation failure.

[0004] The battery management system controls the relay step by step according to the prescribed steps. If all steps are completed normally, the high-voltage state of the battery can be switched to the corresponding state. However, there are thousands of usage scenarios for end users. There may be abnormalities in the closing or disconnection of the relay, or changes in the vehicle controller instructions during the operation of the relay. At this time, such abnormal scenarios need to be handled. For this kind of abnormal jump, a method currently commonly used in the market is to return to the no-power output state. The advantage is that it can better ensure that the actual state of the relay is consistent with the high-voltage state of the battery, but the disadvantage is that high voltage is applied in some working conditions where high voltage is not required, which not only affects the end-user experience, but also reduces the service life of the relay. Summary of the invention

[0005] The purpose of the present invention is to provide a relay control method, system, device and medium for abnormal battery state jumps, which solves the technical problem in the prior art that all relays fall back to the no-power output state when the battery high-voltage state jumps abnormally, resulting in high voltage being applied under certain working conditions where it is not necessary, by selecting to fall back to the no-power output state or the drivable state based on different preconditions when the battery high-voltage state jumps abnormally.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention provides a relay control method for abnormal battery state jump, which comprises:

[0008] When the battery high voltage state jumps abnormally, the state of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped are obtained;

[0009] Determine the operating condition category to which the battery high voltage state jump belongs according to the relay states, the current battery high voltage state and the target battery high voltage state to be jumped;

[0010] According to the working condition category to which the battery high voltage state jump belongs, each of the relays is controlled to switch the state, and the battery high voltage state is returned to a drivable state or a no-power output state.

[0011] In one embodiment of the present invention, when the battery high voltage state jumps abnormally, obtaining the state of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped includes:

[0012] Receive the control instruction of battery high voltage state jump from the vehicle controller;

[0013] According to the control instruction, each of the relays is controlled to switch states. When the relay cannot be closed or opened normally, the state of each relay, the current battery high voltage state and the target battery high voltage state to be jumped are obtained.

[0014] In one embodiment of the present invention, when the battery high voltage state jumps abnormally, obtaining the states of each relay, the current battery high voltage state, and the target battery high voltage state to be jumped includes:

[0015] Receive the control instruction of battery high voltage state jump from the vehicle controller;

[0016] The relays are controlled to switch states according to the control instructions. When the control instructions are changed during the operation of the relays, the states of the relays, the current battery high voltage state and the target battery high voltage state to be switched are obtained.

[0017] In one embodiment of the present invention, the battery high voltage state includes a no-power output state, a drivable state, an AC chargeable state, a DC chargeable state, and a DC charge preheating state.

[0018] In one embodiment of the present invention, the determining of the operating condition category to which the battery high voltage state jump belongs according to the relay states, the current battery high voltage state and the target battery high voltage state to be jumped includes:

[0019] When the relay states, the current battery high voltage state, and the target battery high voltage state to be jumped meet any of the following conditions, it belongs to the first working condition, otherwise it belongs to the second working condition:

[0020] The current battery high voltage state is a DC charging state or a drivable state, and the target battery high voltage state to be jumped to is a DC charging preheating state and the main relay is not actuated; or

[0021] The current battery high voltage state is a DC chargeable state, and the target battery high voltage state to be jumped to is a drivable state; or

[0022] The current battery high voltage state is a drivable state, and the target battery high voltage state to be jumped to is a DC chargeable state.

[0023] In one embodiment of the present invention, a main relay, a pre-charge relay and a fast-charge relay are provided in the battery charge and discharge circuit;

[0024] The controlling of each relay to switch the state according to the working condition category to which the battery high voltage state jumps, and returning the battery high voltage state to a drivable state or a no-power output state comprises:

[0025] When the battery high-voltage state jumps to the first operating condition, the main relay is controlled to close, the pre-charge relay and the fast-charge relay are controlled to disconnect, and the battery high-voltage state is returned to a drivable state.

[0026] In one embodiment of the present invention, a main relay, a pre-charge relay and a fast-charge relay are provided in the battery charge and discharge circuit;

[0027] The controlling of each relay to switch the state according to the working condition category to which the battery high voltage state jumps, and returning the battery high voltage state to a drivable state or a no-power output state comprises:

[0028] When the battery high-voltage state jumps to the second operating condition, the main relay, the pre-charging relay and the fast-charging relay are all controlled to be disconnected, and the battery high-voltage state is returned to a no-power output state.

[0029] Based on the same inventive concept, another embodiment of the present invention further provides a relay control system for abnormal battery state jump, the system comprising:

[0030] An acquisition module is used to acquire the status of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped when the battery high voltage state jumps abnormally;

[0031] A determination module, used to determine the operating condition category to which the battery high voltage state jump belongs according to the states of each of the relays, the current battery high voltage state and the target battery high voltage state to be jumped;

[0032] The control module is used to control the state switching of each relay according to the working condition category to which the battery high voltage state jumps, and to return the battery high voltage state to a drivable state or a no-power output state.

[0033] Based on the same inventive concept, another embodiment of the present invention further provides an electronic device, the electronic device comprising:

[0034] one or more processors;

[0035] A storage device is used to store one or more programs. When the one or more programs are executed by the one or more processors, the electronic device implements any of the above-mentioned relay control methods for abnormal battery status jumps.

[0036] Based on the same inventive concept, another embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor of a computer, the computer executes any of the above-mentioned relay control methods for abnormal battery status jumps.

[0037] As described above, the present invention provides a relay control method for abnormal battery high-voltage state jumps, which has the following beneficial effects: when the battery high-voltage state jumps abnormally, it will not revert to a no-power output state, but flexibly judge the battery high-voltage state to revert to based on different working conditions, thereby improving the user experience and increasing the life of the relay. At the same time, after the abnormal battery high-voltage state jump is handled, the actual state of the relay remains consistent with the battery high-voltage state, thereby ensuring the accuracy of information interaction with other functions or controllers. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0039] Figure 1 A flowchart of a relay control method for abnormal battery state jump provided by an exemplary embodiment of the present application.

[0040] Figure 2 A schematic diagram of a power battery high voltage architecture provided by an exemplary embodiment of the present application.

[0041] Figure 3 A schematic diagram of relay instructions for switching between battery high voltage states provided by an exemplary embodiment of the present application.

[0042] Figure 4A schematic diagram of mutual jumps between battery high voltage states and abnormal processing provided by an exemplary embodiment of the present application.

[0043] Figure 5 A flowchart of the processing logic when a relay operates abnormally is provided by an exemplary embodiment of the present application.

[0044] Figure 6 A block diagram of a relay control system with abnormal battery status jump provided by another exemplary embodiment of the present application.

[0045] Figure 7 A schematic structural diagram of an electronic device provided for another exemplary embodiment of the present application. DETAILED DESCRIPTION

[0046] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0047] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0048] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0049] The vehicle controller and the battery management system exchange information through the vehicle communication bus. The vehicle controller reasonably allocates the energy of the power battery according to the driver's driving intention and the actual needs of the vehicle. It calculates the power and energy required by the vehicle by receiving the status information provided by the battery management system, and then sends corresponding control instructions to the battery management system to ensure that the battery is charged and discharged in a suitable state.

[0050] The battery management system controls the relays based on the control instructions issued by the vehicle controller or the internal state of the battery. According to different working scenarios, the battery high voltage state can be divided into no power output state, drivable state, AC charging state, DC charging state and DC charging preheating state. The relays include main relays, pre-charge relays and fast charge relays. The main relays include main positive relays and main negative relays. The fast charge relays include fast charge positive relays and fast charge negative relays. The positions of the relays in the power battery high voltage architecture are as follows: Figure 1 As shown, the corresponding relationship between the battery high voltage state and the relay state is shown in Table 1.

[0051] Table 1

[0052]

[0053] It should be noted that in Table 1, the corresponding relay states when the battery high voltage state is in the drivable state and the AC charging state are the same. At this time, the battery management system switches the corresponding battery high voltage state through the charging gun state, the charging instructions of the vehicle controller, and the instructions related to the charger and AC charging.

[0054] In order to solve the problem in the prior art that when the battery high-voltage state jumps abnormally, all the relays return to the no-power output state, thereby causing high voltage to be applied in some working conditions where high voltage is not necessary, the present invention provides a relay control method for abnormal battery state jumps. When the battery high-voltage state jumps abnormally, the battery management system flexibly determines the battery high-voltage state to be applied based on different working conditions, and when the abnormal battery high-voltage state jump is handled, the actual state of the relay is consistent with the battery high-voltage state. Please refer to Figure 2 As shown, the relay control method for abnormal battery state jump includes the following steps:

[0055] S100: When the battery high voltage state jumps abnormally, obtaining the state of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped;

[0056] S200: Determine the operating condition category to which the battery high voltage state jump belongs according to the relay states, the current battery high voltage state and the target battery high voltage state to be jumped;

[0057] S300: Controlling each of the relays to switch states according to the operating condition category to which the battery high voltage state jumps, and returning the battery high voltage state to a drivable state or a no-power output state.

[0058] The steps of the relay control method for abnormal battery status jump are discussed in detail below.

[0059] First, step S100 is executed, that is, when the battery high voltage state jumps abnormally, the state of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped are obtained.

[0060] In an exemplary embodiment of the present application, step S100 further includes the following steps:

[0061] S101: receiving a control instruction for switching to a battery high voltage state issued by a vehicle controller;

[0062] S102: Controlling each of the relays to switch states according to the control instruction, and when the relay cannot be closed or opened normally, obtaining the state of each of the relays, the current battery high voltage state, and the target battery high voltage state to be jumped.

[0063] It should be noted that the abnormal battery high voltage state jump includes an abnormality in the relay closing or opening process and a change in the vehicle controller instruction during the relay operation. Therefore, in another embodiment of the present invention, step S102 may also be to control each of the relays to switch states according to the control instruction, and when the control instruction changes during the relay operation, obtain the state of each relay, the current battery high voltage state and the target battery high voltage state to be jumped.

[0064] Specifically, the battery management system issues corresponding relay instructions based on the actual high-voltage state and the calculated target state to control each relay to perform the corresponding relay action. For example, if the current battery high-voltage state is a DC rechargeable state, and the battery management system receives a high-voltage control instruction from the vehicle controller requesting the battery to be recharged, then the current battery high-voltage state needs to complete the jump from the DC rechargeable state to the no-power output state, and the battery management system controls the relay to switch states according to the control instruction. Please refer to Figure 3 As shown, Figure 3 It is the relay instruction when the battery high voltage state jumps between each other. When the battery high voltage state jumps from the DC chargeable state to the no-power output state, it is necessary to execute the bDCdown instruction first, that is, disconnect the fast charge negative relay first and then disconnect the fast charge positive relay, and then execute the bDRVdown instruction, that is, disconnect the main positive relay first and then disconnect the main negative relay. The relay action sequence represented by the relay action instruction is shown in Table 2.

[0065] Table 2

[0066] Relay control instructions Relay action sequence ikB Close main negative → Close pre-charge → Close main positive → Disconnect pre-charge bDRVup (close main positive only) Closed main positive bDRVdown Disconnect the main positive → disconnect the main negative bDRVdown (only disconnect the main positive) Disconnect the main positive BCD Close fast charge positive → Close fast charge negative bD C Disconnect fast charge negative → disconnect fast charge positive bDCdown (disconnect main load) Disconnect fast charge negative → disconnect fast charge positive → disconnect main negative

[0067] When an abnormality occurs during the closing or disconnection of the relay and the vehicle controller instructions change during the operation of the relay, the battery management system obtains the status of each relay, the current battery high-voltage status and the target battery high-voltage status to be jumped. It should be noted that in this embodiment, the battery management system can obtain the actual status of each relay by receiving signal feedback from the relay diagnosis results.

[0068] Next, step S200 is executed, that is, according to the states of the relays, the current battery high voltage state and the target battery high voltage state to be jumped, the operating condition category to which the battery high voltage state jump belongs is determined.

[0069] In an exemplary embodiment of the present application, if the current battery high-voltage state is a DC chargeable state or a drivable state, the target battery high-voltage state to be jumped to is a DC charging preheating state and the main relay is not actuated, or the current battery high-voltage state is a DC chargeable state, and the target battery high-voltage state to be jumped to is a drivable state, or the current battery high-voltage state is a drivable state, and the target battery high-voltage state to be jumped to is a DC chargeable state, then the battery state jump belongs to the first operating condition, and all other situations belong to the second operating condition.

[0070] For details, please refer to Figure 4 As shown, if the current battery high voltage state jump belongs to the first working condition, the battery management system will return the battery high voltage state to the drivable state; if the battery high voltage state jump belongs to the second working condition, the battery management system will return the battery high voltage state to the no power output state. Figure 3 As shown, when the relay cannot be closed or disconnected normally during the battery high-voltage state jump process and the vehicle controller instruction changes, so that the battery high-voltage state needs to be returned, for example, during the jump from the DC rechargeable state to the DC charging preheating state, the bDRVdown instruction is executed, please refer to Table 2, the corresponding relay action is to disconnect the main positive relay, if the vehicle controller instruction changes in the current detection stage before disconnecting the main positive relay, and the main relay has not acted at this time, the battery high-voltage state returns to the drivable state, if it is judged that the main relay cannot be disconnected in the stage of disconnecting the main positive relay, the battery high-voltage state returns to the no-power output state.

[0071] Finally, step S300 is executed, that is, each of the relays is controlled to switch states according to the operating condition category to which the battery high voltage state jumps, and the battery high voltage state is returned to a drivable state or a no-power output state.

[0072] Specifically, when an abnormality occurs during the closing or disconnection of the relay and the vehicle controller instruction changes during the relay operation, if the current battery high-voltage state jump belongs to the first working condition, it is necessary to return to the drivable state, the battery management system controls the main relay to close, the pre-charge relay and the fast-charge relay to disconnect, and the battery high-voltage state is returned to the drivable state. Since the original main relay state of the battery high-voltage state jump under the first working condition is that the main positive relay and the main negative relay are both closed, and the pre-charge relay is disconnected, when an abnormality occurs during the jump, the relay only needs to execute the disconnection fast-charge relay instruction, and then the battery high-voltage state is returned to the drivable state, so that the battery high-voltage state can be consistent with the actual state of the relay. In addition, the battery high-voltage state jump abnormalities all belong to the second working condition and need to be returned to the no-power output state. The battery management system controls the relay to execute all disconnection instructions, that is, control the main relay, the pre-charge relay and the fast-charge relay to disconnect, and return the battery high-voltage state to the no-power output state, so that the battery high-voltage state can also be consistent with the actual state of the relay.

[0073] Based on the same inventive concept, please refer to Figure 6 As shown, another embodiment of the present invention further provides a relay control system 11 with abnormal battery state jump, comprising:

[0074] The acquisition module 111 is used to acquire the state of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped when the battery high voltage state jumps abnormally;

[0075] A determination module 112, for determining the operating condition category to which the battery high voltage state jump belongs according to the relay states, the current battery high voltage state and the target battery high voltage state to be jumped;

[0076] The control module 113 is used to control the state switching of each relay according to the working condition category to which the battery high voltage state jumps, and returns the battery high voltage state to a drivable state or a no-power output state.

[0077] It should be noted that the relay control system 11 for abnormal battery state jump includes the relay control method for abnormal battery state jump described in any of the above embodiments. Since the relay control system 11 for abnormal battery state jump provided in this embodiment belongs to the same inventive concept as the relay control method for abnormal battery state jump provided in any of the above embodiments, it has at least the same beneficial effects as the relay control method for abnormal battery state jump, and will not be described one by one here.

[0078] Based on the same inventive concept, please refer to Figure 7As shown, another embodiment of the present invention further provides an electronic device 1, which may include a memory 12, a processor 13 and a bus, and may also include a computer program stored in the memory 12 and executable on the processor 13, such as a relay control program for abnormal battery status jumps.

[0079] Among them, the memory 12 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, mobile hard disk, multimedia card, card-type memory (for example: SD or DX memory, etc.), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 12 can be an internal storage unit of the electronic device 1, such as a mobile hard disk of the electronic device 1. In other embodiments, the memory 12 can also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the electronic device 1. Further, the memory 12 can also include both an internal storage unit of the electronic device 1 and an external storage device. The memory 12 can not only be used to store application software and various types of data installed in the electronic device 1, such as the code for relay control of abnormal battery state jump, etc., but also can be used to temporarily store data that has been output or is to be output.

[0080] In some embodiments, the processor 13 may be composed of an integrated circuit, for example, a single packaged integrated circuit, or a plurality of packaged integrated circuits with the same or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and combinations of various control chips. The processor 13 is the control core (Control Unit) of the electronic device 1, and uses various interfaces and lines to connect the various components of the entire electronic device 1, and executes or executes the programs or modules stored in the memory 12 (such as the relay control program for abnormal battery state jump, etc.), and calls the data stored in the memory 12 to execute various functions of the electronic device 1 and process data.

[0081] The processor 13 executes the operating system and various installed applications of the electronic device 1. The processor 13 executes the applications to implement the steps in the above-mentioned relay control method for abnormal battery state jump.

[0082] Exemplarily, the computer program may be divided into one or more modules, which are stored in the memory 12 and executed by the processor 13 to complete the present application. The one or more modules may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program in the electronic device 1. For example, the computer program may be divided into an acquisition module 111, a determination module 112, and a control module 113.

[0083] The above-mentioned integrated unit implemented in the form of a software function module can be stored in a computer-readable storage medium, and the computer-readable storage medium can be non-volatile or volatile. The above-mentioned software function module is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a computer device, or a network device, etc.) or a processor to perform part of the functions of the relay control method for abnormal battery state jump described in each embodiment of the present application.

[0084] In summary, please refer to Figure 5 As shown, the present invention provides a relay control method for abnormal battery state jump, including when the battery high-voltage state jumps abnormally, obtaining the state of each relay in the battery charging and discharging circuit, the current battery high-voltage state and the target battery high-voltage state to be jumped, determining the working condition category to which the battery high-voltage state jumps according to the states of each relay, the current battery high-voltage state and the target battery high-voltage state to be jumped, controlling each relay to switch states according to the working condition category to which the battery high-voltage state jumps, and returning the battery high-voltage state to a drivable state or a state without power output. The relay control method for abnormal battery state jump does not return to a state without power output when the battery high-voltage state jumps abnormally, but flexibly determines the battery high-voltage state to be returned based on different working condition categories, thereby improving the user experience and increasing the life of the relay. At the same time, after the abnormal battery high-voltage state jump is handled, the actual state of the relay is consistent with the battery high-voltage state, thereby ensuring the accuracy of information interaction with other functions or controllers.

[0085] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A relay control method for abnormal battery state jump, characterized in that: include: When the battery high voltage state jumps abnormally, the state of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped are obtained; Determine the operating condition category to which the battery high voltage state jump belongs according to the relay states, the current battery high voltage state and the target battery high voltage state to be jumped; According to the working condition category to which the battery high voltage state jump belongs, each of the relays is controlled to switch the state, and the battery high voltage state is returned to a drivable state or a no-power output state.

2. The relay control method for abnormal battery state jump according to claim 1, characterized in that: When the battery high voltage state jumps abnormally, obtaining the state of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped includes: Receive the control instruction of battery high voltage state jump from the vehicle controller; According to the control instruction, each of the relays is controlled to switch states. When the relay cannot be closed or opened normally, the state of each relay, the current battery high voltage state and the target battery high voltage state to be jumped are obtained.

3. The relay control method for abnormal battery state jump according to claim 1, characterized in that: When the battery high voltage state jumps abnormally, obtaining the states of each relay, the current battery high voltage state, and the target battery high voltage state to be jumped includes: Receive the control instruction of battery high voltage state jump from the vehicle controller; The relays are controlled to switch states according to the control instructions. When the control instructions are changed during the operation of the relays, the states of the relays, the current battery high voltage state and the target battery high voltage state to be switched are obtained.

4. The relay control method for abnormal battery state jump according to claim 1, characterized in that: The battery high voltage state includes a no-power output state, a drivable state, an AC chargeable state, a DC chargeable state, and a DC charge preheating state.

5. The relay control method for abnormal battery state jump according to claim 4, characterized in that: Determining the operating condition category to which the battery high voltage state jumps according to the relay states, the current battery high voltage state and the target battery high voltage state to be jumped includes: When the relay states, the current battery high voltage state, and the target battery high voltage state to be jumped meet any of the following conditions, it belongs to the first working condition, otherwise it belongs to the second working condition: The current battery high voltage state is a DC charging state or a drivable state, and the target battery high voltage state to be jumped to is a DC charging preheating state and the main relay is not actuated; or The current battery high voltage state is a DC chargeable state, and the target battery high voltage state to be jumped to is a drivable state; or The current battery high voltage state is a drivable state, and the target battery high voltage state to be jumped to is a DC chargeable state.

6. The relay control method for abnormal battery state jump according to claim 5, characterized in that: The battery charging and discharging circuit is provided with a main relay, a pre-charging relay and a fast charging relay; The controlling of each relay to switch the state according to the working condition category to which the battery high voltage state jumps, and returning the battery high voltage state to a drivable state or a no-power output state comprises: When the battery high-voltage state jumps to the first operating condition, the main relay is controlled to close, the pre-charge relay and the fast-charge relay are controlled to disconnect, and the battery high-voltage state is returned to a drivable state.

7. The relay control method for abnormal battery state jump according to claim 5, characterized in that: The battery charging and discharging circuit is provided with a main relay, a pre-charging relay and a fast charging relay; The controlling of each relay to switch the state according to the working condition category to which the battery high voltage state jumps, and returning the battery high voltage state to a drivable state or a no-power output state comprises: When the battery high-voltage state jumps to the second operating condition, the main relay, the pre-charging relay and the fast-charging relay are all controlled to be disconnected, and the battery high-voltage state is returned to a no-power output state.

8. A relay control system with abnormal battery state jump, characterized in that: The system comprises: An acquisition module is used to acquire the status of each relay in the battery charging and discharging circuit, the current battery high voltage state and the target battery high voltage state to be jumped when the battery high voltage state jumps abnormally; A determination module, used to determine the operating condition category to which the battery high voltage state jump belongs according to the states of each of the relays, the current battery high voltage state and the target battery high voltage state to be jumped; The control module is used to control the state switching of each relay according to the working condition category to which the battery high voltage state jumps, and to return the battery high voltage state to a drivable state or a no-power output state.

9. An electronic device, characterized in that: The electronic device comprises: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the electronic device to implement the relay control method for abnormal battery status jump as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor of a computer, the computer is caused to execute the relay control method for abnormal battery state jump as claimed in any one of claims 1 to 7.

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