Vehicle control method, vehicle control device, multi-power vehicle and storage medium

Abstract

The present application discloses a vehicle control method, a vehicle control device, a multi-power vehicle and a storage medium. The vehicle control method includes: when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, controlling the vehicle battery to power off; when it is determined that the engine state of the engine of the multi-power vehicle is in a shutdown state, determining the vehicle state of the multi-power vehicle; when it is determined that the vehicle state is in a driving state, controlling the engine to switch from a shutdown state to a start state; controlling the engine to supply power to the generator so that the generator supplies power to the low-voltage system of the multi-power vehicle. In the case of thermal runaway of the vehicle battery, the method controls the engine to provide electrical energy to the generator so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is conducive to reducing the safety risk of the multi-power vehicle.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and in particular, relates to a vehicle control method, a vehicle control device, a vehicle and a storage medium. Background Art

[0002] As the transformation of automobile electrification accelerates, traditional fuel vehicles are facing policy elimination pressure due to high carbon emissions, while pure electric vehicles (Battery Electric Vehicle, BEV) still have significant technical bottlenecks in terms of battery energy density, charging infrastructure coverage and low-temperature performance. In this context, multi-power vehicles (such as hybrid electric vehicles (HEV), range extended electric vehicles (REEV), etc.) have become a key transition technology solution to balance environmental regulations, user needs and industrial chain transformation.

[0003] For multi-powered vehicles, in the event of thermal runaway of the vehicle battery, the multi-powered vehicle will lose power at high voltage, and the water pump in the low-pressure system of the multi-powered vehicle will have no power supply. The water pump cannot transport circulating water to cool the vehicle battery, resulting in increased safety risks for the multi-powered vehicle. Summary of the invention

[0004] In view of this, embodiments of the present application provide a vehicle control method, a vehicle control device, a multi-power vehicle and a storage medium to overcome the above problems of the prior art.

[0005] In a first aspect, an embodiment of the present application provides a vehicle control method, including: When it is determined that a vehicle battery of the multi-power vehicle has thermal runaway, controlling the vehicle battery to be powered off; In the case where it is determined that the engine state of the engine of the multi-power vehicle is a shutdown state, determining the vehicle state of the multi-power vehicle; When it is determined that the vehicle is in a driving state, controlling the engine to switch from the stopped state to the started state; The engine is controlled to power the generator, so that the generator powers the low-voltage system of the multi-power vehicle.

[0006] The solution provided in the present application controls the engine to provide electrical energy to the generator in the event of thermal runaway of the vehicle battery, so that the generator provides electrical energy to the low-voltage system. The water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which helps to reduce the safety risks of multi-power vehicles.

[0007] Furthermore, when it is determined that the engine is in a stopped state and the multi-power vehicle is in a driving state, controlling the engine to start immediately can suppress the problem of vehicle function failure due to vehicle battery power loss during driving of the multi-power vehicle, which is beneficial to reducing the safety risk of the multi-power vehicle.

[0008] Wherein, in some optional embodiments, the vehicle control method further includes: When it is determined that the engine state is the start-up state, the engine is controlled to supply power to the generator.

[0009] The solution provided in this embodiment controls the engine to supply power to the generator when it is determined that the engine is in the starting state, thereby improving the success rate of controlling the engine.

[0010] Wherein, in some optional embodiments, the multi-power vehicle is a hybrid electric vehicle, and when it is determined that the vehicle state is a driving state, after controlling the engine to switch from the shutdown state to the startup state, the vehicle control method further includes: The engine is controlled to drive the wheels of the hybrid electric vehicle.

[0011] The solution provided in this embodiment controls the engine to drive the wheels when the hybrid electric vehicle is in driving state and the engine is started, which can suppress the problem of power loss due to thermal runaway during driving of the hybrid electric vehicle and is beneficial to improving the driving safety of the hybrid electric vehicle.

[0012] Wherein, in some optional embodiments, the vehicle control method further includes: When it is determined that the vehicle is in a parking state, controlling the engine to switch from the parking state to the starting state within a preset time period; The engine is controlled to supply power to the generator.

[0013] The solution provided in this embodiment controls the engine to start within a preset time period when it is determined that the engine is in a shutdown state and the multi-power vehicle is in a parked state. This can suppress the problem of vehicle function failure due to battery power loss in the multi-power vehicle, which is beneficial to reducing the safety risks of the multi-power vehicle.

[0014] Wherein, in some optional embodiments, the multi-power vehicle is a hybrid electric vehicle, and the vehicle control method further includes: In the case where it is determined that the engine state is the start state, determining a vehicle state of the hybrid electric vehicle; When it is determined that the vehicle state is the running state, the engine is controlled to drive the wheels of the hybrid electric vehicle to run.

[0015] The solution provided in this embodiment controls the engine to drive the wheels when the engine is in the starting state and the hybrid electric vehicle is in the driving state, which can suppress the problem of power loss due to thermal runaway during the driving of the hybrid electric vehicle and is beneficial to improving the driving safety of the hybrid electric vehicle.

[0016] Among them, in some optional embodiments, when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, before controlling the vehicle battery to power off, the vehicle control method further includes: collecting battery parameters of the vehicle battery; determining whether thermal runaway occurs in the vehicle battery according to the battery parameters; When it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, controlling the vehicle battery to power off includes: When it is determined according to the battery parameters that thermal runaway occurs in the vehicle battery, the vehicle battery is controlled to be powered off.

[0017] In the solution provided in this embodiment, when the vehicle battery has thermal runaway, the battery parameters become abnormal, and whether the vehicle battery has thermal runaway is determined based on the battery parameters of the vehicle battery, which is beneficial to improving the accuracy of determining whether the vehicle battery has thermal runaway.

[0018] Among them, in some optional embodiments, determining whether the vehicle battery has thermal runaway according to the battery parameters includes: When the battery parameter is greater than or equal to a parameter threshold, determining that thermal runaway occurs in the vehicle battery; When the battery parameter is less than the parameter threshold, it is determined that thermal runaway does not occur in the vehicle battery.

[0019] The solution provided in this embodiment determines whether thermal runaway occurs in the vehicle battery based on battery parameters and parameter thresholds, thereby improving the accuracy of determining whether thermal runaway occurs in the vehicle battery.

[0020] In a second aspect, an embodiment of the present application provides a vehicle control device, including: A first control module, configured to control the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway; a first determination module, configured to determine a vehicle state of the multi-power vehicle when it is determined that the engine state of the engine of the multi-power vehicle is a shutdown state; A second control module is used for controlling the engine to switch from the stop state to the start state when determining that the vehicle state is the driving state; The third control module is used to control the engine to supply power to the generator, so that the generator supplies power to the low-voltage system of the multi-power vehicle.

[0021] In a third aspect, an embodiment of the present application provides a multi-power vehicle, including: Memory; One or more processors coupled to the memory; One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, and the one or more applications are configured to execute the vehicle control method provided in the first aspect as described above.

[0022] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a program code is stored. The program code can be called by a processor to execute the vehicle control method provided in the first aspect above.

[0023] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when executed on a computer device, enables the computer device to execute the vehicle control method provided in the first aspect above.

[0024] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions 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 creative work.

[0026] Figure 1 A schematic diagram of a scenario of a multi-power vehicle provided in an embodiment of the present application is shown.

[0027] Figure 2 A flow chart of a vehicle control method provided in an embodiment of the present application is shown.

[0028] Figure 3 Another flow chart of the vehicle control method provided in an embodiment of the present application is shown.

[0029] Figure 4 Another flow chart of the vehicle control method provided in the embodiment of the present application is shown.

[0030] Figure 5Another flow chart of the vehicle control method provided in the embodiment of the present application is shown.

[0031] Figure 6 Another flow chart of the vehicle control method provided in the embodiment of the present application is shown.

[0032] Figure 7 Another flow chart of the vehicle control method provided in the embodiment of the present application is shown.

[0033] Figure 8 Another flow chart of the vehicle control method provided in the embodiment of the present application is shown.

[0034] Fig. 9 A scenario flow diagram of a vehicle control method provided in an embodiment of the present application is shown.

[0035] Fig.10 A structural block diagram of a vehicle control device provided in an embodiment of the present application is shown.

[0036] Fig.11 A functional block diagram of a multi-power vehicle provided in an embodiment of the present application is shown.

[0037] Fig.12 A computer-readable storage medium provided in an embodiment of the present application for storing or carrying program codes for implementing a vehicle control method provided in accordance with an embodiment of the present application is shown.

[0038] Fig.13 A computer program product provided in an embodiment of the present application and used for storing or carrying program codes for implementing the vehicle control method provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0039] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only 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.

[0040] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0041] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates other working conditions.

[0042] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0043] In addition, in the description of the present application, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0044] As the transformation of automobile electrification accelerates, traditional fuel vehicles are facing policy elimination pressure due to high carbon emissions, while pure electric vehicles (Battery Electric Vehicle, BEV) still have significant technical bottlenecks in terms of battery energy density, charging infrastructure coverage and low-temperature performance. In this context, multi-power vehicles (such as hybrid electric vehicles (HEV), range extended electric vehicles (REEV), etc.) have become a key transition technology solution to balance environmental regulations, user needs and industrial chain transformation.

[0045] For multi-powered vehicles, in the event of thermal runaway of the vehicle battery, the multi-powered vehicle will lose power at high voltage, and the water pump in the low-pressure system of the multi-powered vehicle will have no power supply. The water pump cannot transport circulating water to cool the vehicle battery, resulting in increased safety risks for the multi-powered vehicle.

[0046] In response to the above problems, the vehicle control method, vehicle control device, multi-power vehicle and storage medium provided in the embodiments of the present application control the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, and determine the vehicle state of the multi-power vehicle when it is determined that the engine state of the engine of the multi-power vehicle is in a shutdown state, and control the engine to switch from a shutdown state to a start state when it is determined that the vehicle state is a driving state, and control the engine to power the generator so that the generator powers the low-voltage system of the multi-power vehicle. This achieves that when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0047] Furthermore, when it is determined that the engine is in a stopped state and the multi-power vehicle is in a driving state, controlling the engine to start immediately can suppress the problem of vehicle function failure due to vehicle battery power loss during driving of the multi-power vehicle, which is beneficial to reducing the safety risk of the multi-power vehicle.

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0049] See also Figure 1 , which shows a schematic diagram of an application scenario of a multi-power vehicle 100 provided in an embodiment of the present application. The multi-power vehicle 100 may include an engine 101, a generator 102, a vehicle battery 103, a low-voltage system 104, a drive system 105 and a vehicle control unit (VCU) 106.

[0050] The multi-power vehicle 100 may be a hybrid electric vehicle or an extended-range electric vehicle.

[0051] The engine 101 is electrically connected to the generator 102. The engine 101 can be used to supply power to the generator 102 when the engine 101 is in a started state. The engine 101 can include but is not limited to any one of an external combustion engine, an internal combustion engine, a gas turbine and a jet engine.

[0052] The generator 102 is electrically connected to the vehicle battery 103 and the low-voltage system 104 . The generator 102 can be used to supply power to the vehicle battery 103 and the low-voltage system 104 . The generator 102 can include but is not limited to any one of a DC generator and an AC generator.

[0053] The vehicle battery 103 is electrically connected to the low-voltage system 104 and the driving system 105 . The vehicle battery 103 can be used to supply power to the low-voltage system 104 and the driving system 105 .

[0054] The vehicle battery 103 may include, but is not limited to, any one of a lithium battery, a lead-acid battery, a nickel-cadmium battery, a nickel-metal hydride battery, a zinc-silver battery, an iron-chromium flow battery, and an all-vanadium flow battery.

[0055] As an example, the vehicle battery 103 may be a high voltage lithium battery.

[0056] The low-voltage system 104 may include at least any one of a low-voltage power supply, a circulating heat dissipation system, and an acoustic, optical and electrical system.

[0057] The low-voltage power supply is electrically connected to the generator 102, the vehicle battery 103, the circulating heat dissipation system and the acoustic, photoelectric system. The low-voltage power supply can be used to provide low-voltage power to the circulating heat dissipation system and the acoustic, photoelectric system when the generator 102 and / or the vehicle battery 103 are powered.

[0058] As an example, the supply voltage of the low-voltage power supply may include but is not limited to any one of 12 volts (V) and 48V.

[0059] The circulating heat dissipation system may include a water tank, cooling water and a water pump. The water tank may be used to store cooling water, and the water pump may be connected to the water tank through a pipeline.

[0060] The water storage tank may include but is not limited to any one of a stainless steel storage tank, a glass storage tank or a plastic storage tank.

[0061] The water pump can be used to circulate the cooling water stored in the water tank to the pipeline at the vehicle battery 103 under the control of the VCU 106, so as to circulate and dissipate the heat of the vehicle battery 103.

[0062] The water pump may include, but is not limited to, any one of an electric circulation pump, a pneumatic circulation pump, or a hydraulic circulation pump.

[0063] The audio-visual system may include at least one of an audio-visual system, a lighting system, and an onboard power supply system. The audio-visual system may be used to play audio and video, the lighting system may be used to provide lighting for the multi-power vehicle 100, and the onboard power supply system may be used to provide low-voltage charging for electrical appliances.

[0064] The driving system 105 may include a motor and wheels. The motor is connected to the wheels, and the motor may be used to drive the wheels to travel.

[0065] The VCU 106 can be communicatively connected to the engine 101, the generator 102, the vehicle battery 103, the low-voltage power supply, the water pump, the audio-visual system, the lighting system, the vehicle power supply system and the motor, and can exchange data with the engine 101, the generator 102, the vehicle battery 103, the low-voltage power supply, the water pump, the audio-visual system, the lighting system, the vehicle power supply system and the motor.

[0066] The VCU 106 can be used to control the engine 101, the generator 102, the vehicle battery 103, the low-voltage power supply, the water pump, the audio-visual system, the lighting system, the vehicle power supply system and the motor to operate.

[0067] In some embodiments, the multi-power vehicle 100 may be a hybrid electric vehicle, and the engine 101 may also be connected to wheels and used to drive the wheels.

[0068] In some embodiments, the multi-power vehicle 100 may further include a compressor refrigeration system 107 , which is electrically connected to the engine 101 and the vehicle battery 103 . The engine 101 and / or the vehicle battery 103 may be used to power the compressor refrigeration system 107 .

[0069] The VCU 106 may also be communicatively connected to the compressor refrigeration system 107 and used to control the compressor refrigeration system 107 to cool the multi-power vehicle 100 .

[0070] See also Figure 2 , which shows a flow chart of a vehicle control method provided by an embodiment of the present application. In a specific embodiment, the vehicle control method can be applied to Figure 1 The VCU 106 in the multi-power vehicle 100 shown in FIG. 1 is taken as an example below. Figure 2 The process shown is described in detail, and the vehicle control method may include the following steps 110 to 120.

[0071] Step 110: When it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, the vehicle battery is controlled to be powered off.

[0072] In an embodiment of the present application, the VCU may send a first control instruction to the vehicle battery when determining that a vehicle battery of the multi-power vehicle has thermal runaway. The vehicle battery receives and responds to the first control instruction and disconnects power supply to the multi-power vehicle.

[0073] Among them, thermal runaway of the vehicle battery indicates that the vehicle battery is in an abnormal working state and the battery parameters of the vehicle battery increase sharply.

[0074] The battery parameters may include but are not limited to any one of battery voltage, battery current, battery temperature, battery pressure, battery smoke concentration, and battery abnormality sampling frequency.

[0075] Step 120: Control the engine of the multi-power vehicle to supply power to the generator, so that the generator supplies power to the low-voltage system of the multi-power vehicle.

[0076] In an embodiment of the present application, the VCU can send a second control instruction to the engine of the multi-power vehicle. The engine receives and responds to the second control instruction to supply power to the generator. The generator responds to the power supply of the engine to supply power to the low-voltage system of the multi-power vehicle. The water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which helps to reduce the safety risks of the multi-power vehicle.

[0077] The solution provided in the present application controls the vehicle battery to be powered off when it is determined that the vehicle battery of a multi-power vehicle has thermal runaway, and controls the engine of the multi-power vehicle to power the generator so that the generator supplies power to the low-voltage system of the multi-power vehicle. In this way, when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator so that the generator supplies electrical energy to the low-voltage system. The water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0078] See also Figure 3 , which shows a flow chart of a vehicle control method provided by another embodiment of the present application. In a specific embodiment, the vehicle control method can be applied to Figure 1 The VCU 106 in the multi-power vehicle 100 shown in FIG. 1 is taken as an example below. Figure 3 The process shown is described in detail, and the vehicle control method may include the following steps 210 to 230.

[0079] Step 210: When it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, the vehicle battery is controlled to be powered off.

[0080] In this embodiment, step 210 may refer to the contents of the corresponding steps in the aforementioned embodiments, which will not be described in detail here.

[0081] Step 220: Determine the engine state of the engine.

[0082] In this embodiment, the VCU can obtain an engine signal of the engine, match the engine signal with a preset signal, obtain a signal matching degree, and determine the engine state of the engine according to the signal matching degree.

[0083] The engine signal may include but is not limited to any one of the engine voltage and the engine current, etc. The engine state may include but is not limited to the start state and the stop state, and the preset signal may be used to indicate that the engine is in the start state, and the preset signal may include but is not limited to any one of the preset voltage and the preset current, etc.

[0084] When the signal matching degree is greater than or equal to the signal matching degree threshold, the engine state is determined to be the starting state; when the signal matching degree is less than the signal matching degree threshold, the engine state is determined to be the stopping state.

[0085] The signal matching degree may include but is not limited to any one of a voltage matching degree and a current matching degree, and the signal matching degree threshold may include but is not limited to any one of a voltage matching degree threshold and a current matching degree threshold, etc.

[0086] In some embodiments, the engine signal may be an engine voltage, the preset signal may be a preset voltage, the signal matching degree may be a voltage matching degree, and the signal matching degree threshold may be a voltage matching degree threshold.

[0087] The multi-power vehicle may further include a voltage sensor, which is communicatively connected to the VCU and exchanges data with the VCU. The voltage sensor may be used to collect voltage from the engine.

[0088] The VCU can send a first acquisition instruction to the voltage sensor, the voltage sensor receives and responds to the first acquisition instruction, acquires the engine voltage, and sends the acquired engine voltage to the VCU, the VCU receives the engine voltage returned by the voltage sensor, matches the engine voltage with the preset voltage, obtains the voltage matching degree, and determines the engine state of the engine based on the voltage matching degree.

[0089] When the voltage matching degree is greater than or equal to the voltage matching degree threshold, the engine state is determined to be the starting state; when the voltage matching degree is less than the voltage matching degree threshold, the engine state is determined to be the stopping state.

[0090] In some embodiments, the engine signal may be an engine voltage, the preset signal may be a preset current, the signal matching degree may be a current matching degree, and the signal matching degree threshold may be a current matching degree threshold.

[0091] The multi-power vehicle may further include a current sensor, which is communicatively connected to the VCU and exchanges data with the VCU. The current sensor may be used to collect current from the engine.

[0092] The VCU can send a second acquisition instruction to the current sensor, the current sensor receives and responds to the second acquisition instruction, collects the engine current, and sends the collected engine current to the VCU, the VCU receives the engine current returned by the current sensor, matches the engine current with the preset current, obtains the current matching degree, and determines the engine state of the engine based on the current matching degree.

[0093] When the current matching degree is greater than or equal to the current matching degree threshold, the engine state is determined to be the starting state; when the current matching degree is less than the current matching degree threshold, the engine state is determined to be the stopping state.

[0094] Step 230: When it is determined that the engine state is the start state, control the engine to supply power to the generator.

[0095] In this embodiment, the second control instruction may include a first sub-control instruction. When the VCU determines that the engine state is a start-up state, the VCU may send the first sub-control instruction to the engine. The engine receives and responds to the first sub-control instruction to power the generator. The generator responds to the power supply of the engine to power the low-voltage system of the multi-power vehicle, so that the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery. When it is determined that the engine is in a start-up state, the engine is controlled to power the generator, thereby improving the success rate of controlling the engine.

[0096] The solution provided in this embodiment controls the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, determines the engine state of the engine, and controls the engine to supply power to the generator when it is determined that the engine state is in the starting state. This achieves that when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator, so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0097] Furthermore, when it is determined that the engine is in the starting state, the engine is controlled to supply power to the generator, thereby improving the success rate of controlling the engine.

[0098] See also Figure 4 , which shows a flow chart of a vehicle control method provided by another embodiment of the present application. In a specific embodiment, the vehicle control method can be applied to Figure 1 The VCU 106 in the multi-power vehicle 100 shown in FIG. 1 is taken as an example below. Figure 4 The process shown is described in detail, and the vehicle control method may include the following steps 310 to 350.

[0099] Step 310: When it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, the vehicle battery is controlled to be powered off.

[0100] Step 320: Determine the engine state of the engine.

[0101] In this embodiment, step 310 and step 320 may refer to the contents of the corresponding steps in the aforementioned embodiment, which will not be described in detail here.

[0102] Step 330: When it is determined that the engine state is the shutdown state, determine the vehicle state of the multi-power vehicle.

[0103] In this embodiment, the multi-power vehicle may further include a speedometer, which is communicatively connected to the VCU and exchanges data with the VCU. The speedometer may be used to collect the speed of the multi-power vehicle.

[0104] When the VCU determines that the engine status is a shutdown status, it can send a third collection instruction to the speedometer. The speedometer receives and responds to the third collection instruction, collects the speed of the multi-power vehicle, and sends the collected vehicle speed to the VCU. The VCU receives the vehicle speed returned by the speedometer and determines the vehicle status of the multi-power vehicle based on the vehicle speed.

[0105] The vehicle status may include but is not limited to any one of a driving status and a parking status.

[0106] When the vehicle speed is greater than 0, the vehicle state of the multi-power vehicle is determined to be a driving state; when the vehicle speed is equal to 0, the vehicle state of the multi-power vehicle is determined to be a parking state.

[0107] Step 340: When it is determined that the vehicle is in a driving state, control the engine to switch from a stopped state to a started state.

[0108] In this embodiment, when the VCU determines that the vehicle state is in the driving state, it can send a third control instruction to the engine. The engine receives and responds to the third control instruction and switches from the shutdown state to the start state. When it is determined that the engine is in the shutdown state and the multi-power vehicle is in the driving state, the engine is controlled to start immediately. This can suppress the problem of vehicle function failure due to vehicle battery power loss during driving of the multi-power vehicle, which is beneficial to reducing the safety risk of the multi-power vehicle.

[0109] Step 350: Control the engine to power the generator.

[0110] In this embodiment, the second control instruction may include a second sub-control instruction. The VCU may send the second sub-control instruction to the engine. The engine receives and responds to the second sub-control instruction to power the generator. The generator responds to the power supply of the engine to power the low-voltage system of the multi-power vehicle.

[0111] The solution provided in this embodiment controls the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, determines the engine state of the engine, determines the vehicle state of the multi-power vehicle when it is determined that the engine state is a shutdown state, controls the engine to switch from a shutdown state to a startup state when it is determined that the vehicle state is a driving state, and controls the engine to supply power to the generator. This achieves that when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator, so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0112] Furthermore, when it is determined that the engine is in a stopped state and the multi-power vehicle is in a driving state, controlling the engine to start immediately can suppress the problem of vehicle function failure due to vehicle battery power loss during driving of the multi-power vehicle, which is beneficial to reducing the safety risk of the multi-power vehicle.

[0113] See also Figure 5 , which shows a flow chart of a vehicle control method provided by another embodiment of the present application. In a specific embodiment, the vehicle control method can be applied to Figure 1 The VCU 106 in the hybrid electric vehicle shown in FIG. 1 is taken as an example below. Figure 5 The process shown is described in detail, and the vehicle control method may include the following steps 410 to 460.

[0114] Step 410: When it is determined that the vehicle battery of the hybrid electric vehicle has thermal runaway, the vehicle battery is controlled to be powered off.

[0115] Step 420: Determine the engine state of the engine.

[0116] Step 430: When it is determined that the engine state is the shutdown state, determine the vehicle state of the hybrid electric vehicle.

[0117] Step 440: When it is determined that the vehicle is in a driving state, control the engine to switch from a stopped state to a started state.

[0118] Step 450: Control the engine to power the generator.

[0119] In this embodiment, step 410, step 420, step 430, step 440 and step 450 may refer to the contents of the corresponding steps in the aforementioned embodiments, which will not be repeated here.

[0120] Step 460: Control the engine to drive the wheels of the hybrid electric vehicle.

[0121] In this embodiment, the VCU can send a fourth control instruction to the engine, and the engine receives and responds to the fourth control instruction to drive the wheels of the hybrid electric vehicle. When the hybrid electric vehicle is in a driving state and the engine is started, the engine is controlled to drive the wheels to drive, which can suppress the problem of power loss due to thermal runaway during driving of the hybrid electric vehicle, and is beneficial to improving the driving safety of the hybrid electric vehicle.

[0122] The solution provided in this embodiment controls the vehicle battery to be powered off when it is determined that the vehicle battery of the hybrid electric vehicle has thermal runaway, determines the engine state of the engine, determines the vehicle state of the hybrid electric vehicle when it is determined that the engine state is a shutdown state, controls the engine to switch from a shutdown state to a start state when it is determined that the vehicle state is a driving state, and controls the engine to supply power to the generator. This achieves that when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator, so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0123] Furthermore, when the hybrid electric vehicle is in driving state and the engine is started, controlling the engine to drive the wheels can suppress the problem of power loss due to thermal runaway during driving of the hybrid electric vehicle, which is beneficial to improving the driving safety of the hybrid electric vehicle.

[0124] See also Figure 6 , which shows a flow chart of a vehicle control method provided by another embodiment of the present application. In a specific embodiment, the vehicle control method can be applied to Figure 1 The VCU 106 in the multi-power vehicle 100 shown in FIG. 1 is taken as an example below. Figure 6 The process shown is described in detail, and the vehicle control method may include the following steps 510 to 550.

[0125] Step 510: When it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, the vehicle battery is controlled to be powered off.

[0126] Step 520: Determine the engine state of the engine.

[0127] Step 530: When it is determined that the engine state is the shutdown state, determine the vehicle state of the multi-power vehicle.

[0128] In this embodiment, step 510, step 520 and step 530 may refer to the contents of the corresponding steps in the aforementioned embodiment, which will not be described again here.

[0129] Step 540: When it is determined that the vehicle is in a parked state, control the engine to switch from a stopped state to a started state within a preset time period.

[0130] In this embodiment, when the VCU determines that the vehicle state is a parking state, it can send a fifth control instruction to the engine within a preset time period. The engine receives and responds to the fifth control instruction and switches from a shutdown state to a startup state. When it is determined that the engine is in a shutdown state and the multi-power vehicle is in a parking state, the engine is controlled to start within a preset time period, which can suppress the problem of vehicle function failure due to battery power loss in the multi-power vehicle, and is conducive to reducing the safety risk of the multi-power vehicle.

[0131] The preset duration may include but is not limited to a duration preset by a user, or a duration automatically generated by a main control device according to multiple thermal runaway control processes.

[0132] Step 550: Control the engine to power the generator.

[0133] In this embodiment, the second control instruction may include a third sub-control instruction. The VCU may send the third sub-control instruction to the engine. The engine receives and responds to the third sub-control instruction to power the generator. The generator responds to the power supply of the engine to power the low-voltage system of the multi-power vehicle.

[0134] The solution provided in this embodiment controls the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, determines the engine state of the engine, and when it is determined that the engine state is a shutdown state, determines the vehicle state of the multi-power vehicle, and when it is determined that the vehicle state is a parking state, controls the engine to switch from a shutdown state to a start state within a preset time period, and controls the engine to supply power to the generator. In the event that the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator, so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0135] Furthermore, when it is determined that the engine is in a shutdown state and the multi-power vehicle is in a parked state, controlling the engine to start within a preset time period can suppress the problem of vehicle function failure due to vehicle battery power loss in the multi-power vehicle, which is beneficial to reducing the safety risks of the multi-power vehicle.

[0136] See also Figure 7 , which shows a flow chart of a vehicle control method provided by another embodiment of the present application. In a specific embodiment, the vehicle control method can be applied to Figure 1 The VCU 106 in the hybrid electric vehicle shown in FIG. 1 is taken as an example below. Figure 7 The process shown is described in detail, and the vehicle control method may include the following steps 610 to 650.

[0137] Step 610: When it is determined that the vehicle battery of the hybrid electric vehicle has thermal runaway, the vehicle battery is controlled to be powered off.

[0138] Step 620: Determine the engine state of the engine.

[0139] Step 630: When it is determined that the engine state is the start state, control the engine to supply power to the generator.

[0140] Step 640: Determine the vehicle state of the hybrid electric vehicle.

[0141] In this embodiment, step 610, step 620, step 630 and step 640 may refer to the contents of the corresponding steps in the aforementioned embodiment, which will not be repeated here.

[0142] Step 650: When it is determined that the vehicle state is the driving state, control the engine to drive the wheels of the hybrid electric vehicle to drive.

[0143] In this embodiment, when the VCU determines that the vehicle state is a driving state, it can send a sixth control instruction to the engine. The engine receives and responds to the sixth control instruction to drive the wheels of the hybrid electric vehicle. When the engine is in a started state and the hybrid electric vehicle is in a driving state, the engine is controlled to drive the wheels to drive. This can suppress the problem of power loss due to thermal runaway of the hybrid electric vehicle during driving, which is beneficial to improving the driving safety of the hybrid electric vehicle.

[0144] The solution provided in this embodiment controls the vehicle battery to be powered off when it is determined that the vehicle battery of the hybrid electric vehicle has thermal runaway, determines the engine state of the engine, controls the engine to supply power to the generator when it is determined that the engine state is in the starting state, determines the vehicle state of the hybrid electric vehicle, and controls the engine to drive the wheels of the hybrid electric vehicle when it is determined that the vehicle state is in the driving state. This achieves that when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator, so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0145] Furthermore, when the engine is in the starting state and the hybrid electric vehicle is in the driving state, controlling the engine to drive the wheels can suppress the problem of power loss due to thermal runaway during driving of the hybrid electric vehicle, which is beneficial to improving the driving safety of the hybrid electric vehicle.

[0146] See also Figure 8, which shows a flow chart of a vehicle control method provided by another embodiment of the present application. In a specific embodiment, the vehicle control method can be applied to Figure 1 The VCU 106 in the multi-power vehicle 100 shown in FIG. 1 is taken as an example below. Figure 8 The process shown is described in detail, and the vehicle control method may include the following steps 710 to 740.

[0147] Step 710: Collect battery parameters of the vehicle battery.

[0148] In this embodiment, the multi-power vehicle may further include a battery management system (BMS), which is communicatively connected to the VCU, exchanges data with the VCU, and is used to collect parameters of the vehicle battery.

[0149] The VCU may send a fourth acquisition instruction to the BMS. The BMS receives and responds to the fourth acquisition instruction, collects parameters of the vehicle battery, and sends the collected battery parameters to the VCU. The VCU receives the battery parameters returned by the BMS.

[0150] Step 720: Determine whether the vehicle battery has thermal runaway according to the battery parameters.

[0151] In this embodiment, the VCU can determine whether the vehicle battery has thermal runaway based on the battery parameters. When the vehicle battery has thermal runaway, the battery parameters are abnormal. Determining whether the vehicle battery has thermal runaway based on the battery parameters of the vehicle battery is conducive to improving the accuracy of judging whether the vehicle battery has thermal runaway.

[0152] When the battery parameter is greater than or equal to the parameter threshold, it is determined that the vehicle battery has thermal runaway; when the battery parameter is less than the parameter threshold, it is determined that the vehicle has not thermal runaway. Judging whether the vehicle battery has thermal runaway based on the battery parameter and the parameter threshold improves the accuracy of judging whether the vehicle battery has thermal runaway.

[0153] Among them, the parameter threshold can be used to characterize the maximum battery parameter of the vehicle battery in a non-thermal runaway state. The parameter threshold may include but is not limited to any one of a voltage threshold, a current threshold, a temperature threshold, an air pressure threshold, a smoke concentration threshold, and an abnormal sampling frequency threshold.

[0154] Step 730: When it is determined based on the battery parameters that the vehicle battery has thermal runaway, the vehicle battery is controlled to be powered off.

[0155] Step 740: Control the engine of the multi-power vehicle to supply power to the generator.

[0156] In this embodiment, step 730 and step 740 may refer to the contents of the corresponding steps in the aforementioned embodiment, which will not be repeated here.

[0157] In one application scenario, the multi-power vehicle is a hybrid electric vehicle, and the hybrid electric vehicle may include a BMS, such as Fig. 9 As shown, the vehicle control method may include steps 801 to 810.

[0158] Step 801: Receive battery parameters reported by the BMS.

[0159] Step 802: Determine whether the vehicle battery has thermal runaway according to the battery parameters.

[0160] When it is determined according to the battery parameters that the vehicle battery has thermal runaway, executing step 803; When it is determined based on the battery parameters that the vehicle battery has not experienced thermal runaway, step 810 is executed.

[0161] Step 803: Determine the vehicle state of the hybrid electric vehicle.

[0162] When it is determined that the vehicle state of the hybrid electric vehicle is the driving state, executing step 804; When it is determined that the vehicle state of the hybrid electric vehicle is the parking state, step 807 is executed.

[0163] Step 804: Determine the engine state of the engine.

[0164] When it is determined that the engine state is the start state, execute step 805; When it is determined that the engine state is the shutdown state, step 806 is executed.

[0165] Step 805: Control the engine to supply power to the generator, and control the engine to drive the wheels of the hybrid electric vehicle.

[0166] It should be noted that when the VCU determines that the engine state is in the starting state, it can control the engine to power the generator so that the generator powers the low-voltage system of the hybrid electric vehicle, and / or control the engine to drive the wheels of the hybrid electric vehicle, and / or control the engine to power the compressor refrigeration system, which is not limited here.

[0167] Step 806: Control the engine to switch from the shutdown state to the startup state, control the engine to supply power to the generator, and control the engine to drive the wheels of the hybrid electric vehicle.

[0168] Step 807: Determine the engine status of the engine.

[0169] If it is determined that the engine state is the start state, execute step 808; When it is determined that the engine state is the shutdown state, step 809 is executed.

[0170] Step 808: Control the engine to supply power to the generator.

[0171] Step 809: Control the engine to switch from the shutdown state to the startup state within a preset time period, and control the engine to supply power to the generator.

[0172] Step 810: End.

[0173] The solution provided in this embodiment collects battery parameters of the vehicle battery, determines whether the vehicle battery has thermal runaway based on the battery parameters, and controls the vehicle battery to be powered off when it is determined that the vehicle battery has thermal runaway based on the battery parameters, and controls the engine of the multi-power vehicle to supply power to the generator. This achieves the situation where the vehicle battery has thermal runaway, controls the engine to provide electrical energy to the generator, so that the generator provides electrical energy to the low-voltage system, and enables the water pump in the low-pressure system to transport circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0174] Furthermore, in the event that thermal runaway occurs in the vehicle battery, the battery parameters become abnormal, and determining whether thermal runaway occurs in the vehicle battery based on the battery parameters of the vehicle battery is beneficial to improving the accuracy of determining whether thermal runaway occurs in the vehicle battery.

[0175] See also Fig.10 , which shows a vehicle control device 900 provided by an embodiment of the present application. In a specific embodiment, the vehicle control device 900 can be applied to Figure 1 The VCU 106 in the multi-power vehicle 100 shown in FIG. 1 is taken as an example below. Fig.10 The vehicle control device 900 shown is described in detail. The vehicle control device 900 may include a first control module 910 , a first determination module 920 , a second control module 930 and a third control module 940 .

[0176] The first control module 910 can be used to control the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway; the first determination module 920 can be used to determine the vehicle state of the multi-power vehicle when it is determined that the engine state of the engine of the multi-power vehicle is in a shutdown state; the second control module 930 can be used to control the engine to switch from a shutdown state to a start state when it is determined that the vehicle state is a driving state; the third control module 940 can be used to control the engine to power the generator so that the generator powers the low-voltage system of the multi-power vehicle.

[0177] In some embodiments, the vehicle control device 900 may further include a fourth control module.

[0178] The fourth control module may be configured to control the engine to supply power to the generator when it is determined that the engine is in the start state.

[0179] In some implementations, the multi-power vehicle may be a hybrid electric vehicle, and the vehicle control device 900 may further include a fifth control module.

[0180] The fifth control module can be used to control the engine to drive the wheels of the hybrid electric vehicle to drive after the second control module controls the engine to switch from the shutdown state to the startup state when the vehicle state is determined to be the driving state.

[0181] In some embodiments, the vehicle control device 900 may further include a sixth control module and a seventh control module.

[0182] The sixth control module can be used to control the engine to switch from a stopped state to a started state within a preset time period when it is determined that the vehicle is in a parked state; the seventh control module can be used to control the engine to supply power to the generator.

[0183] In some embodiments, the multi-power vehicle may be a hybrid electric vehicle, and the vehicle control device 900 may further include a second determination module and an eighth control module.

[0184] The second determination module can be used to determine the vehicle state of the hybrid electric vehicle when the engine state is determined to be the starting state; the eighth control module can be used to control the engine to drive the wheels of the hybrid electric vehicle when the vehicle state is determined to be the driving state.

[0185] In some implementations, the vehicle control device 900 may further include a collection module and a third determination module.

[0186] The acquisition module can be used for the first control module 910 to collect battery parameters of the vehicle battery before controlling the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway; the third determination module can be used to determine whether the vehicle battery has thermal runaway based on the battery parameters.

[0187] In some embodiments, the first control module 910 may include a second control unit.

[0188] The second control unit may be configured to control the vehicle battery to be powered off when it is determined based on battery parameters that thermal runaway occurs in the vehicle battery.

[0189] In some implementations, the third determining module may include a first determining unit and a second determining unit.

[0190] The first determination unit may be used to determine that thermal runaway has occurred in the vehicle battery when the battery parameter is greater than or equal to a parameter threshold; the second determination unit may be used to determine that thermal runaway has not occurred in the vehicle battery when the battery parameter is less than the parameter threshold.

[0191] The solution provided in this embodiment controls the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, determines the vehicle state of the multi-power vehicle when it is determined that the engine state of the engine of the multi-power vehicle is in the shutdown state, controls the engine to switch from the shutdown state to the start state when it is determined that the vehicle state is in the driving state, and controls the engine to supply power to the generator so that the generator supplies power to the low-voltage system of the multi-power vehicle. This achieves that when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0192] Furthermore, when it is determined that the engine is in a stopped state and the multi-power vehicle is in a driving state, controlling the engine to start immediately can suppress the problem of vehicle function failure due to vehicle battery power loss during driving of the multi-power vehicle, which is beneficial to reducing the safety risk of the multi-power vehicle.

[0193] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. Any processing method described in the method embodiment can be implemented by the corresponding processing module in the device embodiment, and will not be repeated one by one in the device embodiment.

[0194] In addition, each functional module in each embodiment of the present application can be integrated into a processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software functional modules.

[0195] See also Fig.11, which shows a functional block diagram of a multi-power vehicle 1000 provided by an embodiment of the present application, and the multi-power vehicle 1000 may include one or more of the following components: a memory 1010, a processor 1020, and one or more applications, wherein the one or more applications may be stored in the memory 1010 and configured to be executed by the one or more processors 1020, and the one or more applications are configured to execute the method described in the aforementioned method embodiment.

[0196] The memory 1010 may include a random access memory (RAM) or a read-only memory (ROM). The memory 1010 may be used to store instructions, programs, codes, code sets or instruction sets. The memory 1010 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as determining the occurrence of thermal runaway, controlling power-off, controlling power supply, determining the engine state, determining the start state, determining the stop state, determining the vehicle state, determining the driving state, controlling the switching state, controlling driving, and collecting battery parameters, etc.), instructions for implementing the following various method embodiments, etc. The data storage area may also store data created by the multi-power vehicle 1000 during use (such as a multi-power vehicle, a vehicle battery, thermal runaway, an engine, a generator, a low-voltage system, an engine state, a start state, a stop state, a vehicle state, a driving state, a hybrid electric vehicle, a wheel, a parking state, a preset duration, and battery parameters), etc.

[0197] The processor 1020 may include one or more processing cores. The processor 1020 uses various interfaces and lines to connect various parts of the entire multi-power vehicle 1000, and executes various functions and processes data of the multi-power vehicle 1000 by running or executing instructions, programs, code sets or instruction sets stored in the memory 1010, and calling data stored in the memory 1010. Optionally, the processor 1020 can be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), and programmable logic array (PLA). The processor 1020 can integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing display content; and the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 1020, but may be implemented separately through a communication chip.

[0198] Please refer to Fig.12 , which shows a structural block diagram of a computer-readable storage medium provided in an embodiment of the present application. The computer-readable storage medium 1100 stores a program code 1110, and the program code 1110 can be called by a processor to execute the method described in the above method embodiment.

[0199] The computer-readable storage medium 1100 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk, or a ROM. Optionally, the computer-readable storage medium 1100 includes a non-transitory computer-readable storage medium. The computer-readable storage medium 1100 has storage space for program codes 1110 for executing any method steps in the above method. These program codes may be read from or written to one or more computer program products. The program code 1110 may be compressed, for example, in a suitable form.

[0200] Please refer to Fig.13, which shows a structural block diagram of a computer program product 1300 provided in an embodiment of the present application. The computer program product 1300 includes a computer program / instruction 1310, and the computer program / instruction 1310 is stored in a computer-readable storage medium of a computer device. When the computer program product 1300 is run on a computer device, a processor of the computer device reads the computer program / instruction 1310 from the computer-readable storage medium, and the processor executes the computer program / instruction 1310, so that the computer device performs the method described in the above method embodiment.

[0201] The solution provided in this embodiment controls the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, determines the vehicle state of the multi-power vehicle when it is determined that the engine state of the engine of the multi-power vehicle is in the shutdown state, controls the engine to switch from the shutdown state to the start state when it is determined that the vehicle state is in the driving state, and controls the engine to supply power to the generator so that the generator supplies power to the low-voltage system of the multi-power vehicle. This achieves that when the vehicle battery has thermal runaway, the engine is controlled to provide electrical energy to the generator so that the generator provides electrical energy to the low-voltage system, and the water pump in the low-pressure system can deliver circulating water to cool the vehicle battery, which is beneficial to reducing the safety risks of multi-power vehicles.

[0202] Furthermore, when it is determined that the engine is in a stopped state and the multi-power vehicle is in a driving state, controlling the engine to start immediately can suppress the problem of vehicle function failure due to vehicle battery power loss during driving of the multi-power vehicle, which is beneficial to reducing the safety risk of the multi-power vehicle.

[0203] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle control method, characterized in that: include: When it is determined that a vehicle battery of the multi-power vehicle has thermal runaway, controlling the vehicle battery to be powered off; In the case where it is determined that the engine state of the engine of the multi-power vehicle is a shutdown state, determining the vehicle state of the multi-power vehicle; When it is determined that the vehicle is in a driving state, controlling the engine to switch from the stopped state to the started state; The engine is controlled to power the generator, so that the generator powers the low-voltage system of the multi-power vehicle.

2. The vehicle control method according to claim 1, characterized in that: Also includes: When it is determined that the engine state is the start-up state, the engine is controlled to supply power to the generator.

3. The vehicle control method according to claim 1, characterized in that: The multi-power vehicle is a hybrid electric vehicle. When the vehicle is determined to be in a driving state, after the engine is controlled to switch from the shutdown state to the startup state, the vehicle control method further includes: The engine is controlled to drive the wheels of the hybrid electric vehicle.

4. The vehicle control method according to claim 1, characterized in that: Also includes: When it is determined that the vehicle is in a parking state, controlling the engine to switch from the parking state to the starting state within a preset time period; The engine is controlled to supply power to the generator.

5. The vehicle control method according to claim 1, characterized in that: The multi-power vehicle is a hybrid electric vehicle, and the vehicle control method further includes: In the case where it is determined that the engine state is the start state, determining a vehicle state of the hybrid electric vehicle; When it is determined that the vehicle state is the running state, the engine is controlled to drive the wheels of the hybrid electric vehicle to run.

6. The vehicle control method according to any one of claims 1 to 5, characterized in that: In the case where it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, before controlling the vehicle battery to be powered off, the vehicle control method further includes: collecting battery parameters of the vehicle battery; determining whether thermal runaway occurs in the vehicle battery according to the battery parameters; When it is determined that the vehicle battery of the multi-power vehicle has thermal runaway, controlling the vehicle battery to power off includes: When it is determined according to the battery parameters that thermal runaway occurs in the vehicle battery, the vehicle battery is controlled to be powered off.

7. The vehicle control method according to claim 6, characterized in that: The determining, according to the battery parameters, whether thermal runaway occurs in the vehicle battery comprises: When the battery parameter is greater than or equal to a parameter threshold, determining that thermal runaway occurs in the vehicle battery; When the battery parameter is less than the parameter threshold, it is determined that thermal runaway does not occur in the vehicle battery.

8. A vehicle control device, characterized in that: include: A first control module, configured to control the vehicle battery to be powered off when it is determined that the vehicle battery of the multi-power vehicle has thermal runaway; a first determination module, configured to determine a vehicle state of the multi-power vehicle when it is determined that the engine state of the engine of the multi-power vehicle is a shutdown state; A second control module is used for controlling the engine to switch from the stop state to the start state when determining that the vehicle state is the driving state; The third control module is used to control the engine to supply power to the generator, so that the generator supplies power to the low-voltage system of the multi-power vehicle.

9. A multi-power vehicle, characterized in that: include: Memory; One or more processors coupled to the memory; One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, and the one or more applications are configured to execute the vehicle control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores program codes, which can be called by a processor to execute the vehicle control method according to any one of claims 1 to 7.

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