Hybrid vehicle control method, controller, medium, and vehicle

Abstract

A hybrid vehicle control method, a controller, a medium, and a vehicle. The hybrid vehicle control method comprises: in response to a power battery of the vehicle being in a thermal runaway state, controlling a generator to supply power to a cooling system, such that the cooling system cools the power battery.

Description

Hybrid vehicle control method, controller, medium and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 23, 2024, with application number 202410097861.X and application name “A hybrid vehicle control method, controller, medium and vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to, but is not limited to, the field of vehicle technology, and in particular to a hybrid vehicle control method, controller, medium, and vehicle. Background Art

[0003] During the use of power batteries, single cells may experience thermal runaway. If effective measures are not taken at this time, adjacent cells will also experience thermal runaway one after another due to the high temperature and smoke of the runaway cells, causing the thermal runaway to spread and ultimately lead to serious safety accidents.

[0004] Therefore, how to cool down the thermal runaway battery cells before a fire occurs, thereby suppressing the serious hazards of thermal runaway at the source, has become an urgent problem to be solved by those skilled in the art. Technical Solutions

[0005] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0006] In a first aspect, the present application discloses a hybrid vehicle control method, comprising:

[0007] In response to a power battery thermal runaway state occurring in the hybrid vehicle, the generator is controlled to supply power to the cooling system so that the cooling system cools the power battery.

[0008] In one embodiment, controlling the generator to power the cooling system includes:

[0009] Controlling the power coupling between the engine and the generator so that the engine drives the generator to generate electricity; and / or controlling the vehicle to perform kinetic energy recovery to power the cooling system. In one embodiment, before controlling the generator to power the cooling system, the method further includes:

[0010] In response to the engine being in an unstarted state, starting the engine using the power system;

[0011] The power supply system includes an on-board power supply and an off-board power supply. In one embodiment, the on-board power supply includes a battery, a power battery, and a solar panel, and the off-board power supply includes a wired charging power supply and a wireless charging power supply.

[0012] In one embodiment, the hybrid vehicle control method further includes:

[0013] In response to receiving a power-off instruction from the user, executing the power-off instruction is delayed and / or an operation prompt for forced power-off is displayed to the user.

[0014] In one embodiment, before controlling the generator to power the cooling system, the control method further includes:

[0015] Control the high voltage power cut-off of the power battery.

[0016] In one embodiment, the hybrid vehicle control method further includes:

[0017] Warning information is displayed through speakers, instrument panel or central control screen to alert users.

[0018] A second aspect of the present application discloses a controller, comprising:

[0019] A processor, a memory, and instructions stored in the memory and executable on the processor, wherein when the instructions are executed by the processor, any one of the methods of the first aspect of the present application is implemented.

[0020] The third aspect of the present application discloses a computer storage medium, which stores computer instructions. When the computer instructions are called, they are used to execute some or all steps in any hybrid vehicle control method disclosed in the first aspect of the present application.

[0021] A fourth aspect of the present application discloses a vehicle, comprising the controller of the third aspect, and / or the computer-readable storage medium of the fourth aspect.

[0022] Compared with the prior art, this application has the following beneficial effects:

[0023] After a thermal runaway failure occurs in the battery, the engine is controlled to drive the generator to generate electricity, thereby ensuring the normal operation of the compressor and battery cooling system, and cooling and lowering the temperature of the thermal runaway battery. This is used to solve the heat spread problem of hybrid vehicles after thermal runaway occurs, reduce the harmfulness of thermal runaway accidents, and improve the safety performance of the entire vehicle.

[0024] It will be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 is a schematic diagram of a high-voltage system of a conventional new energy vehicle in normal operation and after a thermal runaway failure, as disclosed in an embodiment of the present application;

[0027] FIG2 is a schematic diagram of energy flow in a hybrid vehicle control method disclosed in an embodiment of the present application;

[0028] FIG3 is a flow chart of a hybrid vehicle control method disclosed in an embodiment of the present application;

[0029] FIG4 is a flow chart of another hybrid vehicle control method disclosed in an embodiment of the present application;

[0030] FIG5 is a schematic diagram of the structure of a controller disclosed in an embodiment of the present application.

[0031] Implementation Methods of the Application

[0032] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] To address the issue of how to cool a hybrid vehicle when it experiences thermal runaway, the present application provides a hybrid vehicle control method, controller, medium, and vehicle.

[0035] In order to better understand the technical problems to be solved by the present application, please refer to Figure 1, which is a schematic diagram of the existing battery thermal runaway processing method. As shown in Figure 1, after the battery of an electric vehicle has thermal runaway, if the battery continues to be used, the degree of thermal runaway may be further aggravated. Therefore, the existing technology will directly disconnect the vehicle high voltage after thermal runaway to ensure that the battery cannot continue to be used and avoid further heating of the battery. This processing method is a relatively conservative approach. By cutting off the high voltage electricity, the thermal runaway of the battery is prevented from worsening due to electrical abuse after thermal runaway. In electric vehicles, hybrid vehicles have dual power sources of engine and power battery, which proposes a new solution to the problem of battery thermal runaway, that is, after the battery thermal runaway, the engine can theoretically still provide power for other electrical systems of the vehicle.

[0036] Therefore, this application proposes a hybrid vehicle control method that uses the engine to maintain cooling system operation after a battery thermal runaway, providing cooling for the runaway power battery and thereby reducing the temperature of the thermally runaway battery cells. This method can significantly reduce the battery temperature after thermal runaway, reduce the risk of thermal runaway spreading, and reduce the amount of gas generated during thermal runaway. This reduces the risk of battery pack overheating, fire, and explosion, significantly reducing the hazards of thermal runaway in hybrid vehicles and improving vehicle safety.

[0037] Please refer to Figure 2, which is a schematic diagram of energy flow in a hybrid vehicle control method of the present application. As shown in the figure, the hybrid vehicle is divided into four systems: a power system for providing electricity, an engine that uses the engine to provide power, a power generation system that receives energy from the power system or fuel system to generate electricity, and a cooling system that uses electricity to cool the battery. In general, the energy flow paths of a hybrid vehicle include the following:

[0038] The power system provides electricity to the cooling system, and the cooling system cools the power system;

[0039] The power supply system provides electricity to the power generation system, the power generation system supplies power to the cooling system, and the cooling system cools the power supply system;

[0040] The fuel system charges the power system, the power system provides electricity to the power generation system, the power generation system supplies power to the cooling system, and the cooling system cools the power system;

[0041] The fuel system converts power into electricity through the power generation system, the power generation system supplies power to the cooling system, and the cooling system cools the power system. The above is the possible energy flow mode of a hybrid vehicle under normal battery temperature. The energy flow path of a hybrid vehicle control method in this application is as follows:

[0042] Optionally, when a hybrid vehicle experiences thermal runaway, the power battery is powered off and the engine is not running. The energy flow path is: the power system starts the fuel system, the fuel system provides energy to the power generation system, the power generation system supplies power to the cooling system, and the cooling system cools the power system.

[0043] Optionally, when a hybrid vehicle experiences thermal runaway, the power battery is powered off while the engine is running. The energy flow path is as follows: the engine directly provides energy to the power generation system, the power generation system supplies power to the cooling system, and the cooling system then cools the power system.

[0044] Specifically, the power supply system includes on-board energy and non-on-board energy, the cooling system includes an air cooling system, a liquid cooling system and a solid cooling system, the fuel system includes an engine, and the power generation system includes a motor and a high-voltage bus.

[0045] It can be seen that this application utilizes the characteristics of hybrid vehicles with multiple power sources. In the case of battery thermal runaway and high-voltage power outage, the engine is used to provide energy to the vehicle cooling system. While the battery is naturally cooled without power supply, it can also be cooled by the cooling system of the entire vehicle, cooling down faster, avoiding battery thermal runaway from extreme conditions, and effectively protecting vehicle safety.

[0046] Please refer to FIG3 , which is a flow chart of a hybrid vehicle control method of the present application, including:

[0047] S101, in response to a power battery thermal runaway state occurring in the vehicle, controlling a generator to supply power to a cooling system so that the cooling system cools the power battery;

[0048] Specifically, in step S101, the hybrid vehicle may include any type of hybrid vehicle with the engine and motor connected in series, parallel, series-parallel, or power split. The vehicle controller uses existing onboard temperature sensors and other sensing devices to determine the real-time temperature of the power battery. The sensing device can respond to the current power battery temperature in real time and transmit the temperature sensing information to the vehicle controller. When the vehicle controller receives a notification indicating that the power battery temperature exceeds a pre-set first threshold, it determines that the power battery is approaching thermal runaway. The vehicle controller then controls the generator to power the cooling system, enabling the cooling system to cool the power battery.

[0049] Optionally, the cooling system may include at least one of an air cooling system, a liquid cooling system, and a solid cooling system, and the specific types and structures of the air cooling system and the liquid cooling system are not limited. In this application, air cooling refers to all systems that use gas for heat exchange for cooling, and the density and size of the gas do not constitute a limitation on this application; liquid cooling refers to all systems that use liquid for heat exchange for cooling, and the density and type of the liquid do not constitute a limitation on this application; a solid cooling system refers to a cooling system that exchanges heat with the power battery in a solid manner, and the type and density of the solid do not constitute a limitation on this application. As long as it can cool and dissipate heat from the power battery, it can be classified as a cooling system in this application.

[0050] Optionally, the first threshold can be set according to adaptability based on different vehicles, different application conditions and different environments. In this application, the first threshold is only used as an objective judgment reference, and the numerical range of the first threshold cannot constitute a limitation on this application.

[0051] Specifically, based on the vehicle's existing temperature sensing equipment, a first and second threshold for the power battery temperature are pre-set, with the second threshold temperature being lower than the first threshold. A power battery temperature below the second threshold is considered normal, a power battery temperature above the second threshold but lower than the first threshold is considered a fault, and a power battery temperature above the first threshold is considered a thermal runaway state. In normal mode, the vehicle operates normally without any other operations. In a faulty mode, the power battery temperature is high, but still some distance from thermal runaway. In this case, the cooling system power is increased, and the user is prompted to stop and inspect. If the battery temperature is under control after taking measures, the fault mode is exited. In a thermal runaway mode, the battery pack may catch fire, and the user is immediately prompted to stop nearby. The vehicle then checks to see if the engine is running. If so, the engine is used as a power source to supply energy to the cooling system. If not, the engine is started through the power system to supply energy to the cooling system.

[0052] Optionally, in the event of a power battery thermal runaway, the engine will remove restrictions on NVH and energy consumption, running at high speed to ensure the compressor can continue to operate at rated power, thereby improving the cooling capacity of the battery cooling system. With the battery cooling system operating, the temperature of the thermally runaway battery continues to drop. When the battery temperature remains below a second threshold for a period of time, the cooling exit condition is met, and the engine and battery cooling system are shut down.

[0053] For example, cooling exit conditions include but are not limited to the removal of the thermal runaway abnormality signal, the cooling being on for an agreed period of time, the battery temperature dropping below the target temperature, the user implementing forced power-off measures due to a fault condition, etc.

[0054] Optionally, in the power battery thermal runaway state, the hybrid vehicle control method further includes: when receiving a power-off instruction from the user, delaying execution of the power-off instruction and / or displaying a forced power-off operation prompt to the user.

[0055] Specifically, when the power battery is in thermal runaway, the engine serves as the power source for the vehicle, allowing the cooling system to cool the battery. If the user powers down the vehicle at this point, cooling will not continue. If the engine has not yet started, powering down at this point will seriously impact vehicle safety. If the generator is running, the user can be informed that a normal power down is possible. Therefore, the user is informed that the power down instruction will be delayed. If the user chooses not to power down, cooling will continue. If the user still wishes to power down, a forced power down prompt will be displayed, along with a reminder of the potential consequences of forcing the power down at this point.

[0056] It can be seen that this application judges the condition of the power battery based on the current temperature of the power battery, and sets different response control methods based on different temperatures. When the power battery is in a thermal runaway state, the engine is used to power the entire vehicle, so that the cooling system keeps operating and ensures vehicle safety.

[0057] S102, before controlling the generator to supply power to the cooling system, the method further includes:

[0058] Controlling the high voltage power cutoff of the power battery.

[0059] Specifically, when the power battery is in thermal runaway state, the power battery is disconnected from the power supply to the entire vehicle to prevent the power battery temperature from further increasing. At the same time, the power battery is cooled in conjunction with the vehicle's cooling system. In this way, the power battery can be cooled by the cooling system even when it is not working, so that the temperature can be reduced to the maximum extent.

[0060] Optionally, in the battery thermal runaway mode, the vehicle controller will send a warning message through the speaker, instrument panel and / or central control screen, head-up display, etc. to prompt the user to stop the car and move away.

[0061] Furthermore, in addition to sending warning messages, the system can also use physical contact methods such as vibration of the steering wheel and seat to remind users that they are in an emergency and need to leave the vehicle immediately. When the power battery temperature stabilizes, a text message will be sent to the mobile terminal to remind the user that the current vehicle battery temperature has stabilized, but the user is still advised to contact the 4S dealer for further treatment.

[0062] It can be seen that this application disconnects the energy supply of the power battery, allowing the power battery to switch from a powered state to a stopped state, thereby preventing the temperature from rising further. At the same time, the engine is used as a power source to provide energy for the entire vehicle, so that the cooling system can work even without power supply from the power battery, thereby achieving control over thermal runaway of the power battery and improving the safety of the entire vehicle.

[0063] Please refer to FIG4 , which is a flowchart further refining the hybrid vehicle control method proposed in S101 , including:

[0064] S201 controlling the generator to supply power to the cooling system includes:

[0065] The engine and the generator are controlled to be power-coupled so that the engine drives the generator to generate electricity, and / or the vehicle is controlled to perform kinetic energy recovery to supply power to the cooling system.

[0066] Specifically, in step S201, when the vehicle is in a thermal runaway state, the vehicle controller controls the power coupling between the engine and the generator, with the engine providing power to drive the generator to generate electricity and provide energy for the cooling system, and / or the wheels drive the generator to perform energy feedback, so that the generator generates electricity and the energy obtained is used to power the cooling system, further improving energy utilization.

[0067] Before controlling the generator to supply power to the cooling system in S202, the method further includes:

[0068] When the engine is in an unstarted state, starting the engine using the power supply system;

[0069] The power supply system includes an on-board power supply and an off-board power supply.

[0070] Specifically, when the vehicle is in a thermal runaway state, before the vehicle high voltage power is cut off, it is first detected whether the engine is in the starting state. If not, the power supply system is used to start the engine, and the engine is used as a power source to power the entire vehicle, and / or the vehicle is controlled to perform kinetic energy recovery to power the cooling system. Although the duration of kinetic energy recovery is short, the vehicle kinetic energy recovery can be connected to the power supply under thermal runaway by correspondingly setting an energy storage device and a boost device on the vehicle, thereby improving the safety redundancy of the entire vehicle.

[0071] Optionally, the power supply system includes an on-board power supply and an off-board power supply.

[0072] Specifically, the on-board power supply includes a storage battery, a power battery, a solar panel and an energy feedback power supply, and the off-board power supply includes a wired charging power supply and a wireless charging power supply. The wired charging power supply includes DC charging and AC charging, and the wireless charging power supply includes dynamic wireless charging and static wireless charging.

[0073] For example, when a vehicle experiences thermal runaway, the power system is the battery. At this time, the high voltage of the power battery is cut off, and the battery reverse-boosts to power the engine, starting the engine. The engine then restarts the cooling system to cool the power battery.

[0074] For example, when a vehicle is in a thermal runaway state, the power system is the power battery. It takes a certain amount of time for the power battery high-voltage power to be cut off from receiving the command to disconnection. Before disconnection, the power battery supplies power to the engine to start the engine. Alternatively, an emergency backup power supply is set inside the battery pack. Under normal working conditions, other batteries are used to supply energy first, and the emergency backup power supply does not work or works less. After thermal runaway, the emergency backup power supply supplies power to the engine to start the engine, and the engine is restarted and the cooling system cools the power battery.

[0075] For example, when a vehicle experiences thermal runaway, the power supply system is a solar panel. In a vehicle that uses energy converted from the solar panel as part or all of its power supply, when the battery thermally runs away, the engine can also be started by the energy of the solar panel, and the engine restarts the cooling system to cool the power battery.

[0076] For example, when the vehicle is in a thermal runaway state, the power system provides power for energy feedback, the energy provided by braking feedback supplies power to the engine, and the engine restarts the cooling system to cool the power battery.

[0077] For example, when a vehicle is in a thermal runaway state and is in the process of charging, it can use non-vehicle energy to start the engine. For example, in limited charging mode, the energy of the charging pile is used to start the engine, and charging is temporarily stopped. In wireless charging mode, electromagnetic induction energy is used to start the engine under wireless charging, and charging is temporarily stopped. The engine is then used to drive the cooling system to cool the power battery.

[0078] It is understandable that the above embodiments may be implemented in combination with each other or individually, and any solution that is simply combined without creative effort still falls within the scope of this application.

[0079] It can be seen that the present application utilizes on-board energy and / or non-on-board energy to power the engine in an emergency situation of thermal runaway, drive the generator to start, and the generator powers the refrigeration system, and the refrigeration system cools the battery. In this way, even when the power battery cannot supply power, other energy sources can still be used to start the engine, thereby increasing safety redundancy for the vehicle and improving the safety of the entire vehicle.

[0080] The present application also provides a controller 300, as shown in FIG5 , comprising: a processor 310, a memory 320, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the controller implements the hybrid vehicle control method of the aforementioned embodiment.

[0081] Preferably, the memory and the processor are both inside the controller, but the memory may also be located outside the controller, and the location of the memory is not limited.

[0082] According to an embodiment of the present application, a computer-readable storage medium is further provided, on which program instructions are stored. When the program instructions are executed by a computer or a processor, they are used to execute the corresponding steps of the hybrid vehicle control method of the embodiment of the present application.

[0083] The computer-readable storage medium may include, for example, a storage component of a tablet computer, a hard disk of a personal computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disk read-only memory (CD-ROM), a USB memory, or any combination thereof. The computer-readable storage medium may be any combination of one or more computer-readable storage media, for example, one computer-readable storage medium containing a computer-readable program code for randomly generating a sequence of action instructions, and another computer-readable storage medium containing a computer-readable program code for controlling crystal growth.

[0084] The present application also provides a vehicle, comprising the controller as described above, and / or the computer-readable storage medium as described above.

[0085] Understandably, the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of the hardware in the processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.

[0086] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0087] Finally, it should be noted that the hybrid vehicle control method and the controller, storage medium, and vehicle including the method disclosed in the embodiments of the present application are only preferred embodiments of the present application and are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, it will be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A hybrid vehicle control method, wherein, The method includes: In response to the power battery of the vehicle being in a thermal runaway state, controlling the generator to supply power to the cooling system so that the cooling system cools down the power battery.

2. The method according to claim 1, wherein The controlling the generator to supply power to the cooling system includes: Controlling the engine to be power-coupled with the generator so that the engine drives the generator to generate electricity; and / or, controlling the vehicle to perform kinetic energy recovery to supply power to the cooling system.

3. The method according to claim 1 or 2, wherein Before the controlling the generator to supply power to the cooling system, the method further includes: In response to the engine being in an unstarted state, starting the engine by using a power supply system, where the power supply system includes an on-vehicle power supply and an off-vehicle power supply.

4. The method according to claim 3, wherein The on-vehicle power supply includes a storage battery, a power battery, and a solar panel, and the off-vehicle power supply includes a wired charging power supply and a wireless charging power supply.

5. According to the method according to any one of claims 1 to 4, wherein, The method further includes: In response to receiving a power-off instruction from the user, delaying the execution of the power-off instruction and / or presenting an operation prompt for forced power-off to the user.

6. The method according to any one of claims 1 to 5, wherein, Before the controlling the generator to supply power to the cooling system, the method further includes: Controlling the high-voltage power-off of the power battery.

7. The method according to claim 6, wherein, The method further includes: Displaying a warning message through a speaker, an instrument panel, or a central control screen to warn the user.

8. A controller, wherein, It includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the following method is implemented: In response to the power battery of the vehicle being in a thermal runaway state, controlling the generator to supply power to the cooling system so that the cooling system cools down the power battery.

9. The controller according to claim 8, when the program or instruction is executed by the processor, the following method is further implemented: Controlling the engine to be power-coupled with the generator so that the engine drives the generator to generate electricity; and / or, controlling the vehicle to perform kinetic energy recovery to supply power to the cooling system.

10. The controller according to claim 8 or 9, when the program or instruction is executed by the processor, the following method is further implemented: In response to the engine being in an unstarted state, start the engine using the power supply system, where The power supply system includes an on-vehicle power supply and an off-vehicle power supply.

11. The controller according to any one of claims 8 to 10, when the program or instruction is executed by the processor, the following method is further implemented: In response to receiving a power-off instruction from the user, delaying the execution of the power-off instruction and / or presenting an operation prompt for forced power-off to the user.

12. The controller according to any one of claims 8 to 11, when the program or instruction is executed by the processor, the following method is further implemented: Controlling the high-voltage power-off of the power battery.

13. The controller according to claim 12, when the program or instruction is executed by the processor, the following method is further implemented: Displaying a warning message through a speaker, an instrument panel, or a central control screen to warn the user.

14. A computer-readable storage medium for use in the method according to any one of claims 1-7, wherein, Computer instructions are stored in the computer-readable storage medium. When the computer instructions run, the method according to any one of claims 1 to 7 is implemented.

15. A vehicle, wherein, It includes a controller, and the controller includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the following method is implemented: In response to the occurrence of a thermal runaway state of the power battery in the vehicle, control the generator to supply power to the cooling system so that the cooling system cools down the power battery.

16. A vehicle, which includes a computer-readable storage medium, and computer instructions are stored in the computer-readable storage medium. When the computer instructions run, the method described below is implemented; In response to the occurrence of a thermal runaway state of the power battery in the vehicle, control the generator to supply power to the cooling system so that the cooling system cools down the power battery.

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