Vehicle control method and apparatus, vehicle and storage medium

Abstract

The present application relates to the technical field of vehicles, in particular to a vehicle control method and apparatus, a vehicle and a storage medium. The method comprises: when it is determined on the basis of the current SOC of a storage battery, the current voltage of the storage battery, the tire pressures of two front tires, and the current oil temperature of an automatic transmission that a vehicle meets a preset charging condition, sending an engine start request to a preset mobile terminal; and if a determination instruction fed back on the basis of the engine start request is received, determining the operating speed of an engine and the power generation duty cycle of a generator on the basis of the current SOC of the storage battery and the current voltage of the storage battery, and, on the basis of the operating speed and the power generation duty cycle, starting the engine to charge the storage battery of the vehicle. Therefore, the present application solves the problems of momentary blackouts of multimedia screens and music stuttering occurring when drivers perform driving maneuvers such as forward gear and reverse gear switching and steering wheel turning after a start up due to under-charging of 12 V storage batteries caused by prolonged parking of vehicles in low-temperature environments, thereby improving the vehicle driving experience.

Description

Vehicle control method and device, vehicle, and storage medium

[0001] Cross-reference to Related Applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202410780389X, filed on June 17, 2024, the entire contents of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicles, in particular to a vehicle control method and device, a vehicle, and a storage medium. BACKGROUND

[0004] The 12V storage battery of a vehicle is likely to be discharged after long-time placement in a low-temperature environment, and due to thermal expansion and cold contraction, the tire pressure of the vehicle tires is reduced, the tire has a larger contact area with the ground, and the steering resistance of the vehicle is increased. At the same time, the low-temperature environment increases the damping effect of the grease inside the ball head of the upper and lower swing arms, balance bars, and cross tie rods of the vehicle suspension on the ball head, and the ball head movement is more likely to be limited, thus further increasing the steering resistance of the vehicle. In addition, the viscosity of the automatic transmission oil is large at low temperature, and the fluidity is not good, which also increases the working load of the electromagnetic valve in the transmission during gear shifting. In the state of 12V storage battery discharge of the vehicle, if the driver performs forward gear, reverse gear switching, and steering wheel rotation and other yard moving driving operations after starting the engine, the 12V storage battery is consumed by the starting engine, and the steering load and the working load of the electromagnetic valve of the transmission are large in the low-temperature environment. At the same time, the vehicle multimedia music is generally automatically turned on after the engine is started, and the power consumption of other electrical loads of the vehicle, so the electrical load of the vehicle is large at this time, and the problems of instantaneous black screen of the multimedia screen and music stuttering are likely to occur, which affects the vehicle driving experience. SUMMARY

[0005] The present application provides a vehicle control method and device, a vehicle, and a storage medium to solve the problem that the 12V storage battery is discharged due to long-time placement of the vehicle in a low-temperature environment, and the driver is likely to encounter the problems of instantaneous black screen of the multimedia screen and music stuttering when performing forward gear, reverse gear switching, and steering wheel rotation and other yard moving driving operations after starting the engine.

[0006] The first aspect of the present application provides a vehicle control method, comprising the following steps: obtaining a current SOC of a battery of a vehicle, a current voltage of the battery, two front tire pressures and a current automatic transmission oil temperature; determining that the vehicle meets a preset charging condition according to the current SOC of the battery, the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature; sending an engine start request to a preset mobile terminal when the vehicle meets the preset charging condition; determining a running speed of the engine and a power generation duty cycle of a generator based on the current SOC of the battery and the current voltage of the battery if a determination instruction fed back based on the engine start request is received; and starting the engine to charge the battery of the vehicle according to the running speed and the power generation duty cycle.

[0007] Optionally, after obtaining the current SOC of the battery of the vehicle, the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, the method further comprises: determining whether the current SOC of the battery is lower than a first preset power or whether the current voltage of the battery is lower than a first preset voltage; determining that the vehicle meets the preset charging condition if the current SOC of the battery is lower than the first preset power or the current voltage of the battery is lower than the first preset voltage; otherwise, if the current SOC of the battery is lower than a second preset power or the current voltage of the battery is lower than a second preset voltage, determining whether the current automatic transmission oil temperature is lower than a preset oil temperature or whether at least one front tire pressure is lower than a preset tire pressure; and determining that the vehicle meets the preset charging condition if the current automatic transmission oil temperature is lower than the preset oil temperature or the at least one front tire pressure is lower than the preset tire pressure, wherein the second preset voltage is higher than the first preset voltage, and the second preset power is higher than the first preset power.

[0008] Optionally, after the current SOC of the battery and the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature of the vehicle are acquired, the method further comprises: if the current SOC of the battery is not lower than the first preset electric quantity and the current voltage of the battery is not lower than the first preset voltage, determining whether the current SOC of the battery is lower than the second preset electric quantity or the current voltage of the battery is lower than the second preset voltage; if the current SOC of the battery is not lower than the second preset electric quantity and the current voltage of the battery is not lower than the second preset voltage, determining that the vehicle does not satisfy the preset charging condition, if the current SOC of the battery is lower than the second preset electric quantity or the current voltage of the battery is lower than the second preset voltage, determining whether the two front tire pressures are not lower than the preset tire pressure and the current automatic transmission oil temperature is not lower than the preset oil temperature; if the two front tire pressures are not lower than the preset tire pressure and the current automatic transmission oil temperature is not lower than the preset oil temperature, determining that the vehicle does not satisfy the preset charging condition.

[0009] Optionally, after the engine start request is sent to the preset mobile terminal, the method further comprises: determining whether a rejection instruction sent by the mobile terminal based on the engine start request is received or whether an acknowledgement instruction of the mobile terminal is not received within the preset time length; if the rejection instruction is received, sending the engine start request to the preset mobile terminal according to a preset period, if the acknowledgement instruction of the mobile terminal is not received within the preset time length, immediately sending the engine start request to the preset mobile terminal, and when the number of sending times is greater than or equal to a preset number of times, determining that the driver rejects to start the engine.

[0010] Optionally, when the engine is started to charge the battery of the vehicle according to the running speed and the power generation duty cycle, the method further comprises: determining a first target running speed of the engine based on the current SOC of the battery and the current voltage of the battery, and determining whether the engine enters a warm-up mode; if the engine enters the warm-up mode, taking the greater value between the first target running speed of the engine and a second target running speed of the engine in the warm-up mode as a third target running speed of the engine, otherwise, taking the first target running speed of the engine as the third target running speed of the engine; taking the third target running speed of the engine as a final target control speed of the engine, and controlling the engine to run.

[0011] Optionally, after starting the engine according to the running speed and the power generation duty cycle to charge the battery of the vehicle, the method further comprises: detecting a current SOC of the battery and a current voltage of the battery; and if the current SOC of the battery is higher than a third preset electric quantity and the current voltage of the battery is higher than a third preset voltage, controlling the engine to be turned off, wherein the third preset electric quantity is higher than the second preset electric quantity and the third preset voltage is higher than the second preset voltage.

[0012] The second aspect embodiment of the application provides a vehicle control device, comprising: an acquisition module configured to acquire a current SOC of a battery of a vehicle, a current voltage of the battery, two front tire pressures and a current automatic transmission oil temperature; a sending module configured to send an engine starting request to a preset mobile terminal when it is determined that the vehicle meets a preset charging condition according to the current SOC of the battery, the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature; and a control module configured to determine a running speed of the engine and a power generation duty cycle of a generator based on the current SOC of the battery and the current voltage of the battery if a determination instruction is received based on the engine starting request, and start the engine to charge the battery of the vehicle according to the running speed and the power generation duty cycle.

[0013] Optionally, after acquiring the current SOC of the battery of the vehicle, the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, the acquisition module is further configured to: determine whether the current SOC of the battery is lower than a first preset electric quantity or the current voltage of the battery is lower than a first preset voltage; if the current SOC of the battery is lower than the first preset electric quantity or the current voltage of the battery is lower than the first preset voltage, it is determined that the vehicle meets the preset charging condition, otherwise, if the current SOC of the battery is lower than a second preset electric quantity or the current voltage of the battery is lower than a second preset voltage, it is determined whether the current automatic transmission oil temperature is lower than a preset oil temperature or at least one front tire pressure is lower than a preset tire pressure; if the current automatic transmission oil temperature is lower than the preset oil temperature or at least one front tire pressure is lower than the preset tire pressure, it is determined that the vehicle meets the preset charging condition, wherein the second preset electric quantity is higher than the first preset electric quantity and the second preset voltage is higher than the first preset voltage.

[0014] Optionally, after obtaining the current SOC of the battery, the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, the obtaining module is further configured to: if the current SOC of the battery is not lower than the first preset electric quantity and the current voltage of the battery is not lower than the first preset voltage, determining whether the current SOC of the battery is lower than the second preset electric quantity or the current voltage of the battery is lower than the second preset voltage; if the current SOC of the battery is not lower than the second preset electric quantity and the current voltage of the battery is not lower than the second preset voltage, determining that the vehicle does not satisfy the preset charging condition, if the current SOC of the battery is lower than the second preset electric quantity or the current voltage of the battery is lower than the second preset voltage, determining whether the two front tire pressures are not lower than the preset tire pressure and the current automatic transmission oil temperature is not lower than the preset oil temperature; if the two front tire pressures are not lower than the preset tire pressure and the current automatic transmission oil temperature is not lower than the preset oil temperature, determining that the vehicle does not satisfy the preset charging condition.

[0015] Optionally, after sending the engine start request to the preset mobile terminal, the sending module is further configured to: determining whether a rejection instruction sent by the mobile terminal based on the engine start request is received or whether an acknowledgement instruction of the mobile terminal is not received within the preset time length; if the rejection instruction is received, sending the engine start request to the preset mobile terminal according to a preset period, if the acknowledgement instruction of the mobile terminal is not received within the preset time length, immediately sending the engine start request to the preset mobile terminal, and when the number of sending times is greater than or equal to a preset number of times, determining that the driver rejects to start the engine.

[0016] Optionally, when starting the engine to charge the battery of the vehicle according to the running speed and the power generation duty cycle, the control module is further configured to: determining a first target running speed of the engine based on the current SOC of the battery and the current voltage of the battery, and determining whether the engine enters a warm-up mode; if the engine enters the warm-up mode, taking the greater value between the first target running speed of the engine and a second target running speed of the engine in the warm-up mode as a third target running speed of the engine, otherwise, taking the first target running speed of the engine as the third target running speed of the engine; taking the third target running speed of the engine as a final target control speed of the engine, and controlling the engine to run.

[0017] Optionally, after starting the engine according to the running speed and the power generation duty cycle to charge the battery of the vehicle, the control module is further configured to: detect a current SOC of the battery and a current voltage of the battery; and control the engine to be turned off if the current SOC of the battery is higher than a third preset power and the current voltage of the battery is higher than a third preset voltage, wherein the third preset power is higher than the second preset power and the third preset voltage is higher than the second preset voltage.

[0018] A third aspect of the present application provides a vehicle, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the vehicle control method according to the above-mentioned embodiments.

[0019] A fourth aspect of the present application provides a computer readable storage medium, having a computer program stored thereon, and the program is executed by a processor to implement the vehicle control method according to the above-mentioned embodiments.

[0020] In the above-mentioned embodiments, when it is determined that the vehicle meets the preset charging condition according to the current SOC of the battery, the current voltage of the battery, the tire pressure of the two front wheels, and the current oil temperature of the automatic transmission, an engine starting request is sent to a preset mobile terminal, and if a determination instruction is received based on the engine starting request, the running speed of the engine and the power generation duty cycle of the generator are determined based on the current SOC of the battery and the current voltage of the battery, and the engine is started according to the running speed and the power generation duty cycle to charge the battery of the vehicle. Thus, the problem that the 12V battery is discharged due to long-time placement of the vehicle in a low-temperature environment, and the multimedia screen is momentarily black and the music is paused when the driver performs the shift switching of the forward gear and the reverse gear and the steering wheel rotation and other moving library driving operations after starting the engine is solved, and the driving experience of the vehicle is improved.

[0021] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0023] Fig. 1 is a flowchart of a vehicle control method according to an embodiment of the present application;

[0024] Fig. 2 is a flowchart of a vehicle remote starting controller determining to start the engine to charge the 12V battery according to an embodiment of the present application;

[0025] Fig. 3 is a flow chart of the interaction confirmation between the vehicle remote start control system and the driver when it is determined that the engine needs to be started to charge the 12V battery according to an embodiment of the present application;

[0026] Fig. 4 is a flow chart of a method for determining the final target control speed of the engine according to an embodiment of the present application;

[0027] Fig. 5 is a flow chart of a vehicle control method according to an embodiment of the present application;

[0028] Fig. 6 is a schematic diagram of a vehicle control device according to an embodiment of the present application;

[0029] Fig. 7 is a schematic diagram of a vehicle structure according to an embodiment of the present application.

[0030] Reference signs:

[0031] 10 - vehicle control device; 100 - acquisition module; 200 - sending module; 300 - control module. Embodiments of the present application

[0032] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0033] A vehicle control method, device, vehicle and storage medium according to embodiments of the present application are described below with reference to the accompanying drawings. In view of the problem that the 12V battery is discharged due to long-time placement of the vehicle in a low-temperature environment, and the driver is prone to multimedia screen instantaneous black screen and music stuttering when performing forward gear, reverse gear switching and steering wheel rotation and other yard moving driving operations after starting the engine, the present application provides a vehicle control method, in which when it is determined that the vehicle meets a preset charging condition according to the current SOC of the battery, the current voltage of the battery, the pressure of the two front tires and the current automatic transmission oil temperature, an engine start request is sent to a preset mobile terminal, and if a determination instruction is received based on the engine start request feedback, the operating speed of the engine and the power generation duty cycle of the generator are determined based on the current SOC of the battery and the current voltage of the battery, and the engine is started to charge the battery of the vehicle according to the operating speed and the power generation duty cycle. Thus, the problem that the 12V battery is discharged due to long-time placement of the vehicle in a low-temperature environment, and the driver is prone to multimedia screen instantaneous black screen and music stuttering when performing forward gear, reverse gear switching and steering wheel rotation and other yard moving driving operations after starting the engine is solved, and the driving experience of the vehicle is improved.

[0034] Specifically, FIG. 1 is a flowchart of a vehicle control method provided by an embodiment of the present application.

[0035] As shown in FIG. 1, the vehicle control method comprises the following steps:

[0036] In step S101, the current SOC of the battery of the vehicle and the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature are obtained.

[0037] Optionally, in some embodiments, after obtaining the current SOC of the battery of the vehicle and the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, it further comprises: judging whether the current SOC of the battery is lower than a first preset power or the current voltage of the battery is lower than a first preset voltage; if the current SOC of the battery is lower than the first preset power or the current voltage of the battery is lower than the first preset voltage, it is judged that the vehicle meets the preset charging condition, otherwise, if the current SOC of the battery is lower than a second preset power or the current voltage of the battery is lower than a second preset voltage, it is judged whether the current automatic transmission oil temperature is lower than a preset oil temperature or at least one front tire pressure is lower than a preset tire pressure; if the current automatic transmission oil temperature is lower than the preset oil temperature or at least one front tire pressure is lower than the preset tire pressure, it is determined that the vehicle meets the preset charging condition, wherein the second preset voltage is higher than the first preset voltage, and the second preset power is higher than the first preset power.

[0038] wherein the first preset power A SOC may be 65% for example, the first preset voltage A Vot may be 11.5V for example, the preset tire pressure A Pre may be 2bar for example, and the preset oil temperature A Tem may be -5℃ for example, the second preset power B SOC may be 85% for example, the second preset voltage B Vot may be 12.5V for example.

[0039] Specifically, as shown in FIG. 2, when the current SOC of the battery of the vehicle is lower than the first preset power A SOC or the current voltage of the battery is lower than the first preset voltage A Vot , it indicates that the power of the 12V battery is very low, and in this case, if the driver performs the shifting of the forward gear and the reverse gear and the turning of the steering wheel and other moving operation after starting the engine, the problem of instantaneous black screen of the multimedia screen and music lagging is easy to occur, which affects the driving experience of the vehicle, therefore, the vehicle remote starting controller determines that the engine needs to be started to charge the 12V battery.

[0040] The vehicle remote start controller is a controller in the vehicle for remotely controlling the engine start, which together with the vehicle remote start control application APP on the driver's mobile phone forms a vehicle remote start control system. The vehicle remote start controller and the vehicle remote start control application APP on the driver's mobile phone communicate and interact through wireless communication technology, which can be similar to mobile phone communication and signal transmission. The body control module (BCM) monitors the current SOC of the vehicle battery and the current voltage of the vehicle battery at all times, and sends them to the vehicle remote start controller and the engine control unit (ECU) through the controller area network (CAN) bus.

[0041] Further, in the case that the current SOC of the battery is not lower than the first preset power and the current voltage of the battery is not lower than the first preset voltage, when the current SOC of the battery is lower than the second preset power B SOC , or the current voltage of the battery is lower than the second preset voltage B Vot , if at least one front tire pressure is lower than the preset tire pressure A Pre , or the current automatic transmission oil temperature is lower than the preset oil temperature A Tem , the vehicle remote start controller determines that the engine needs to be started to charge the 12V battery, i.e., the vehicle meets the preset charging condition. The front tire pressure value is measured by a tire pressure monitoring sensor and sent to the BCM, which then sends it to the vehicle remote start controller through the CAN bus. If the front tire pressure is lower than the preset tire pressure A Pre , it indicates that the front tire pressure is low, and the steering resistance of the vehicle will be larger. The automatic transmission oil temperature is measured by an oil temperature sensor and sent to the transmission control unit (TCU), which then sends it to the vehicle remote start controller through the CAN bus. If the automatic transmission oil temperature is lower than the preset oil temperature A Tem , it indicates that the automatic transmission oil temperature is low, and it also indicates that the vehicle has been placed in a low temperature environment for a long time, and thus it can represent that the grease in the ball head of the suspension swing arm, balance bar and tie rod of the vehicle has a larger damping effect on the ball head. In this case, the working load of the transmission solenoid valve and the steering resistance of the vehicle are larger, and the vehicle remote start controller determines that the engine needs to be started to charge the 12V battery.

[0042] Therefore, if the current SOC of the battery is lower than the first preset power A SOC , or the current voltage of the battery is lower than the first preset voltage A Vot, it indicates that the 12V battery has a low power, and the vehicle remote starting controller determines that the engine needs to be started to charge the 12V battery, or, in the case that the current SOC of the battery is not lower than the first preset power A SOC and the current voltage of the battery is not lower than the first preset voltage A Vot , if the current SOC of the battery is lower than the second preset power B SOC or the current voltage of the battery is lower than the second preset voltage B Vot , and at least one front tire pressure is lower than the preset tire pressure A Pre or the current automatic transmission oil temperature is lower than the preset oil temperature A Tem , it indicates that the vehicle has a large steering load or transmission working load, and if the driver performs the forward gear, reverse gear switching and steering wheel rotation and other yard moving driving operations after starting the engine, the multimedia screen may be momentarily black and the music may be stuttered, which affects the driving experience of the vehicle, and the vehicle remote starting controller determines that the engine needs to be started to charge the 12V battery, that is, the vehicle meets the preset charging condition.

[0043] Further, in some embodiments, after obtaining the current SOC of the battery and the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, it further includes: if the current SOC of the battery is not lower than the first preset power and the current voltage of the battery is not lower than the first preset voltage, determining whether the current SOC of the battery is lower than the second preset power or the current voltage of the battery is lower than the second preset voltage; if the current SOC of the battery is not lower than the second preset power and the current voltage of the battery is not lower than the second preset voltage, determining that the vehicle does not meet the preset charging condition, and if the current SOC of the battery is lower than the second preset power or the current voltage of the battery is lower than the second preset voltage, determining whether the two front tire pressures are not lower than the preset tire pressure and the current automatic transmission oil temperature is not lower than the preset oil temperature; if the two front tire pressures are not lower than the preset tire pressure and the current automatic transmission oil temperature is not lower than the preset oil temperature, determining that the vehicle does not meet the preset charging condition.

[0044] It should be understood that when the current SOC of the battery of the vehicle is higher than the second preset power B SOC and the current voltage of the battery is higher than the second preset voltage B Vot , the vehicle remote starting controller determines that the engine does not need to be started to charge the 12V battery, which indicates that the 12V battery has a high power, and even if the driver performs the forward gear, reverse gear switching and steering wheel rotation and other yard moving driving operations after starting the engine in a low temperature environment, the multimedia screen is not likely to be momentarily black and the music is not likely to be stuttered, which does not affect the driving experience of the vehicle, and therefore, the battery does not need to be charged, that is, the vehicle does not meet the preset charging condition.

[0045] When the current SOC of the battery is not lower than the first preset electric quantity and the current voltage of the battery is not lower than the first preset voltage, if the current SOC of the battery is lower than the second preset electric quantity or the current voltage of the battery is lower than the second preset voltage, it indicates that the electric quantity of the 12V battery is neither very low nor very high, and is at a medium level. In this case, if the situation that the front tire pressure is lower than the preset tire pressure A Pre or the automatic transmission oil temperature is lower than the preset oil temperature A Tem does not occur, it indicates that the steering load of the vehicle and the working load of the transmission are not too large, and if the driver performs the forward gear, reverse gear switching and steering wheel rotation and other moving library driving operations after starting the engine, the problems of the multimedia screen instantaneous black screen and the music stuttering are not easy to occur, and the vehicle driving experience is not affected. The vehicle remote starting controller determines that the engine does not need to be started to charge the 12V battery, that is, the vehicle does not meet the preset charging condition.

[0046] It should be noted that the vehicle remote starting controller always monitors the current SOC of the battery and the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, so as to determine whether the engine needs to be started to charge the 12V battery. In addition, the second preset voltage B Vot in the above is higher than the first preset voltage A Vot , the second preset electric quantity B SOC is higher than the first preset electric quantity A SOC , and the values of the first preset electric quantity A SOC , the first preset voltage A Vot , the second preset electric quantity B SOC , the second preset voltage B Vot , the preset tire pressure A Pre and the preset oil temperature A Tem can be set according to the specific performance of the multimedia screen instantaneous black screen and the music stuttering problem of the vehicle, and the setting values in the embodiments of the application are only exemplary and are not limited.

[0047] In step S102, when it is determined that the vehicle meets the preset charging condition according to the current SOC of the battery and the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, the engine starting request is sent to the preset mobile terminal.

[0048] Optionally, in some embodiments, after sending the engine start request to the preset mobile terminal, the method further comprises: determining whether a rejection instruction sent by the mobile terminal based on the engine start request is received, or determining whether an acknowledgement instruction from the mobile terminal is not received within a preset time period; if the rejection instruction is received, sending the engine start request to the preset mobile terminal according to a preset period t2, if the acknowledgement instruction is not received within a preset time period t1, immediately sending the engine start request to the preset mobile terminal, and when the number of times of sending is greater than or equal to a preset number n, determining that the driver rejects to start the engine.

[0049] For example, the preset time period t1 and the preset period t2 can both be 30 minutes, and the preset number n can be 3. The number n should not be too large, so as to avoid causing annoyance and complaints of the driver.

[0050] Specifically, as shown in FIG. 3, if it is determined that the engine needs to be started to charge the 12V storage battery, the engine start request is sent to the vehicle remote start control application APP on the driver's mobile terminal through a wireless communication mode, a prompt information of starting the engine to charge the 12V storage battery is popped up in the vehicle remote start control application APP on the mobile terminal, and the driver is prompted to confirm by means of mobile phone vibration or prompt sound. In addition, when the vehicle remote start controller sends the engine start request to the vehicle remote start control application APP on the driver's mobile terminal for a preset time period t1, and still does not receive the signal of allowing to start the engine or rejecting to start the engine sent back by the vehicle remote start control application APP on the driver's mobile terminal, it indicates that the driver does not respond to the engine start request, and then the vehicle remote start controller sends the engine start request to the vehicle remote start control application APP on the driver's mobile terminal again.

[0051] If the driver rejects to start the engine after receiving the mobile phone vibration or prompt sound of the vehicle remote start control application APP on the mobile terminal, and sends the rejection signal back to the vehicle remote start controller from the vehicle remote start control application APP on the mobile terminal, it indicates that the driver may reject to start the engine at this time due to his own consideration, and then the vehicle remote start controller sends the engine start request to the vehicle remote start control application APP on the driver's mobile terminal again after a preset period t2.

[0052] If the driver still refuses to start the engine and sends the refusal signal back to the vehicle remote start controller through the vehicle remote start control application APP on the mobile phone, the vehicle remote start controller will no longer send the engine start request to the vehicle remote start control application APP on the mobile phone of the driver, and the vehicle remote start controller will determine that the driver refuses to start the engine, wherein the initial value of i is 0.

[0053] If the driver allows the engine to start after receiving the mobile phone vibration or prompt sound of the vehicle remote start control application APP on the mobile phone, and sends the permission signal back to the vehicle remote start controller through the vehicle remote start control application APP on the mobile phone, it means that the driver allows the engine to start at this time.

[0054] It can be understood that if the vehicle remote start controller determines that the engine does not need to be started to charge the 12V battery, the engine start request will not be sent to the vehicle remote start control application APP on the mobile phone of the driver, and there is no need to interact with the driver to confirm the start of the engine.

[0055] In step S103, if the determination instruction based on the engine start request feedback is received, the running speed of the engine and the power generation duty cycle of the generator are determined based on the current SOC of the battery and the current voltage of the battery, and the engine is started to charge the battery of the vehicle according to the running speed and the power generation duty cycle.

[0056] Specifically, if it is determined that the engine needs to be started to charge the 12V battery, when the vehicle remote start controller receives the permission signal to start the engine sent back by the vehicle remote start control application APP on the mobile phone of the driver, the engine is controlled to start and charge the 12V battery by interacting with the ECU. If the result of the interactive confirmation between the vehicle remote start control system and the driver is to refuse to start the engine, the vehicle remote start controller will not control the engine to start and charge the 12V battery by interacting with the ECU.

[0057] Further, the running speed of the engine and the power generation duty cycle of the generator are determined based on the current SOC of the battery and the current voltage of the battery, and it is determined whether to control the engine to stop, specifically: after the vehicle remote start controller controls the engine to start and charge the 12V battery by interacting with the ECU, the ECU controls the engine running speed n EThe engine operating speed n in Table 1 and the power generation duty cycle PWM of the generator as shown in Table 2.

[0058] Table 1 Engine operating speed n E

[0059] 12V battery SOC / % 12V battery voltage / V 60 70 80 90 11 12 13 14 11.5 21 22 23 24 12 31 32 33 34 12.5 41 42 43 44 13 51 52 53 54

[0060] Table 2 Power generation duty cycle PWM of the generator

[0061] 12V battery SOC / % 12V battery voltage / V 60 70 80 90 11 12 13 14 11.5 21 22 23 24 12 31 32 33 34 12.5 41 42 43 44 13 51 52 53 54

[0062] wherein the engine operating speed n in Table 1 E and the power generation duty cycle PWM of the generator in Table 2 can be calibrated and set according to the charging effect of the real vehicle 12V battery. Generally speaking, the engine operating speed n Eij (i=1, 2, ……, 5; j=1, 2, ……, 4) and the power generation duty cycle PWM of the generator ij (i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, and the power generation duty cycle PWM of the generator Eij (i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, and the power generation duty cycle PWM of the generator ij (i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, and the power generation duty cycle PWM of the generator Eij (i=1, 2, ……, 5; j=1, 2, ……, 4) can be correspondingly reduced, and the power generation duty cycle PWM of the generator ij (i=1, 2, ……, 5; j=1, 2, ……, 4) can be correspondingly reduced, and the power generation duty cycle PWM of the generator Eij(i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, the power generation duty cycle PWM of the generator ij (i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, the power generation duty cycle PWM of the generator Eij (i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, the power generation duty cycle PWM of the generator ij (i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, the power generation duty cycle PWM of the generator ij (i=1, 2, ……, 5; j=1, 2, ……, 4) should be higher, the power generation duty cycle PWM of the generator

[0063] Optionally, in some embodiments, when starting the engine to charge the battery of the vehicle according to the operating speed and the power generation duty cycle, it comprises: determining the first target operating speed of the engine based on the current SOC of the battery and the current voltage of the battery, and determining whether the engine enters the warm-up mode; if the engine enters the warm-up mode, taking the larger value of the first target operating speed of the engine and the second target operating speed of the engine in the warm-up mode as the third target operating speed of the engine, otherwise, taking the first target operating speed of the engine as the third target operating speed of the engine; taking the third target operating speed of the engine as the final target control speed of the engine operation, and controlling the engine operation.

[0064] The embodiment of the present application considers that the engine will generally enter the warm-up mode after the vehicle is placed for a long time, therefore, under this working condition, the ECU calculates the first target operating speed n E of the engine according to the current SOC of the battery and the current voltage of the battery of the vehicle, and then compares it with the second target operating speed n EWT of the engine in the warm-up mode to take the maximum value as the final target control speed n F of the engine operation, that is, the third target operating speed, as shown in FIG. 4, wherein the second target operating speed n EWT of the engine in the warm-up mode is a target control speed value of the engine pre-labeled in the ECU, which is used to control the engine operation in the warm-up mode, so as to realize the rapid warm-up of the engine and the rapid light-off of the three-way catalyst, thereby facilitating the fuel consumption and emission of the vehicle.

[0065] Optionally, in some embodiments, after starting the engine according to the running speed and the power generation duty cycle to charge the battery of the vehicle, the method comprises: detecting the current SOC of the battery and the current voltage of the battery; if the current SOC of the battery is not lower than a third preset electric quantity, and the current voltage of the battery is not lower than a third preset voltage, then controlling the engine to be turned off, wherein the third preset electric quantity is higher than the second preset electric quantity, and the third preset voltage is higher than the second preset voltage.

[0066] wherein the third preset electric quantity C SOC may be 90%, and the third preset voltage C Vot may be 13.5V. SOC and the third preset voltage C Vot may be set according to the charging performance, the discharging loss, and the specific performance of the problem of instantaneous black screen of the multimedia screen and the problem of music lag of the real vehicle 12V battery, and the setting values in the embodiments of the application are only exemplary and are not limited, wherein the third preset electric quantity C SOC is higher than the second preset electric quantity B SOC , and the third preset voltage C Vot is higher than the second preset voltage B Vot .

[0067] It should be understood that when the vehicle remote starting controller monitors that the current SOC of the battery is not lower than the third preset electric quantity C SOC and the current voltage of the battery is not lower than the third preset voltage C Vot , the vehicle remote starting controller determines that the electric quantity of the 12V battery is relatively high, and it is not necessary to charge it again, and therefore, the engine is controlled to be turned off by interacting with the ECU to save the fuel consumption of the vehicle. Wherein the third preset electric quantity C SOC is higher than the second preset electric quantity B SOC , and the third preset voltage C Vot is higher than the second preset voltage B Vot , so as to avoid that when the vehicle front tire pressure is lower than the preset tire pressure A Pre or the current automatic transmission oil temperature is lower than the preset oil temperature A Tem , the vehicle remote starting controller controls the vehicle to start and charge the battery until the current SOC of the battery is higher than the third preset electric quantity C SOC and the current voltage is higher than the third preset voltage C Vot , and then controls the engine to be stopped for a period of time, and due to the consumption of the electric quantity of the battery again, the vehicle starts again to charge the 12V battery and stops again, that is, the frequent start and stop of the engine for charging the 12V battery of the vehicle is avoided, the service life of the vehicle starter is guaranteed, and the intelligent control of the vehicle is realized.

[0068] To make the person skilled in the art further understand the vehicle control method of the embodiments of the present application, the following will be described in detail in combination with specific embodiments, as shown in Figure 5.

[0069] In S501, it is determined whether the engine needs to be started to charge the 12V battery according to the current SOC of the battery and the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature of the vehicle;

[0070] In S502, if it is determined that the engine needs to be started to charge the 12V battery, the vehicle remote start control system interacts with the driver for confirmation;

[0071] In S503, if the result of the interaction between the vehicle remote start control system and the driver is to allow the engine to be started, the vehicle starts the engine;

[0072] In S504, the engine speed and the generator power generation duty cycle are controlled according to the current SOC of the battery and the current voltage of the battery, and it is determined whether the engine is controlled to be turned off.

[0073] According to the vehicle control method proposed in the embodiments of the present application, when it is determined that the vehicle meets the preset charging condition according to the current SOC of the battery, the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, the engine start request is sent to the preset mobile terminal; if the determination instruction fed back based on the engine start request is received, the engine speed and the generator power generation duty cycle are determined based on the current SOC of the battery and the current voltage of the battery, and the engine is started to charge the battery of the vehicle according to the engine speed and the generator power generation duty cycle. Thus, the problem that the 12V battery is discharged due to long-term placement of the vehicle in a low-temperature environment, and the multimedia screen momentarily blackens and the music stalls when the driver performs the shift switching and steering wheel rotation of the vehicle in the forward gear and the reverse gear after starting the engine is solved, and the driving experience of the vehicle is improved.

[0074] Next, the vehicle control device according to the embodiments of the present application is described with reference to the accompanying drawings.

[0075] Figure 6 is a block schematic diagram of the vehicle control device of the embodiments of the present application.

[0076] As shown in Figure 6, the vehicle control device 10 includes an acquisition module 100, a sending module 200 and a control module 300.

[0077] The SOC of the battery of the vehicle and the current voltage of the battery, the pressure of two front tires and the current oil temperature of the automatic transmission are acquired; when it is determined that the vehicle meets the preset charging condition according to the current SOC of the battery, the current voltage of the battery, the pressure of two front tires and the current oil temperature of the automatic transmission, the engine start request is sent to the preset mobile terminal; if the determination instruction based on the engine start request feedback is received, the running speed of the engine and the power generation duty cycle of the generator are determined based on the current SOC of the battery and the current voltage of the battery, and the engine is started according to the running speed and the power generation duty cycle to charge the battery of the vehicle.

[0078] Optionally, in some embodiments, after the current SOC of the battery of the vehicle and the current voltage of the battery, the pressure of two front tires and the current oil temperature of the automatic transmission are acquired, the SOC acquisition module 100 is further configured to: determine whether the current SOC of the battery is lower than the first preset power or the current voltage of the battery is lower than the first preset voltage; if the current SOC of the battery is lower than the first preset power or the current voltage of the battery is lower than the first preset voltage, it is determined that the vehicle meets the preset charging condition, otherwise, if the current SOC of the battery is lower than the second preset power or the current voltage of the battery is lower than the second preset voltage, it is determined whether the current oil temperature of the automatic transmission is lower than the preset oil temperature or whether the pressure of at least one front tire is lower than the preset tire pressure; if the current oil temperature of the automatic transmission is lower than the preset oil temperature or the pressure of at least one front tire is lower than the preset tire pressure, it is determined that the vehicle meets the preset charging condition, wherein the second preset voltage is higher than the first preset voltage, and the second preset power is higher than the first preset power.

[0079] Optionally, in some embodiments, after the current SOC of the battery of the vehicle and the current voltage of the battery, the pressure of two front tires and the current oil temperature of the automatic transmission are acquired, the SOC acquisition module 100 is further configured to: if the current SOC of the battery is not lower than the first preset power and the current voltage of the battery is not lower than the first preset voltage, it is determined whether the current SOC of the battery is lower than the second preset power or the current voltage of the battery is lower than the second preset voltage; if the current SOC of the battery is not lower than the second preset power and the current voltage of the battery is not lower than the second preset voltage, it is determined that the vehicle does not meet the preset charging condition, if the current SOC of the battery is lower than the second preset power or the current voltage of the battery is lower than the second preset voltage, it is determined whether the pressure of two front tires is not lower than the preset tire pressure and the current oil temperature of the automatic transmission is not lower than the preset oil temperature; if the pressure of two front tires is not lower than the preset tire pressure and the current oil temperature of the automatic transmission is not lower than the preset oil temperature, it is determined that the vehicle does not meet the preset charging condition.

[0080] Optionally, in some embodiments, after sending the engine start request to the preset mobile terminal, the sending module 200 is further configured to: determine whether a rejection instruction sent by the mobile terminal based on the engine start request is received, or whether an acknowledgement instruction of the mobile terminal is not received within a preset time length; if the rejection instruction is received, send the engine start request to the preset mobile terminal according to a preset period; if the acknowledgement instruction of the mobile terminal is not received within the preset time length, immediately send the engine start request to the preset mobile terminal, and when the number of sending times is greater than or equal to a preset number of times, determine that the driver rejects to start the engine.

[0081] Optionally, in some embodiments, when the engine is started according to the running speed and the power generation duty cycle to charge the battery of the vehicle, the control module 300 is further configured to: determine a first target running speed of the engine based on the current SOC of the battery and the current voltage of the battery, and determine whether the engine enters a warm-up mode; if the engine enters the warm-up mode, take the larger value between the first target running speed of the engine and a second target running speed of the engine in the warm-up mode as a third target running speed of the engine, otherwise, take the first target running speed of the engine as the third target running speed of the engine; and control the engine to run with the third target running speed of the engine as a final target control speed of the engine.

[0082] Optionally, in some embodiments, after the engine is started according to the running speed and the power generation duty cycle to charge the battery of the vehicle, the control module 300 is further configured to: detect the current SOC of the battery and the current voltage of the battery; if the current SOC of the battery is not lower than a third preset electric quantity and the current voltage of the battery is not lower than a third preset voltage, control the engine to be turned off, wherein the third preset electric quantity is higher than the second preset electric quantity, and the third preset voltage is higher than the second preset voltage.

[0083] It should be noted that the foregoing explanation and description of the vehicle control method embodiment also applies to the vehicle control device of this embodiment, which will not be described here again.

[0084] According to the vehicle control device provided in the embodiments of the present application, when it is determined that the vehicle meets the preset charging condition according to the current SOC of the battery, the current voltage of the battery, the two front tire pressures and the current automatic transmission oil temperature, the engine start request is sent to the preset mobile terminal; if a determination instruction fed back based on the engine start request is received, the running speed of the engine and the power generation duty cycle of the generator are determined based on the current SOC of the battery and the current voltage of the battery, and the engine is started according to the running speed and the power generation duty cycle to charge the battery of the vehicle. Thus, the problem that the 12V battery is discharged due to long-time placement of the vehicle in a low-temperature environment, and the multimedia screen is easily blacked out and the music is easily paused when the driver performs the shift switching between the forward gear and the reverse gear and the steering wheel rotation and other moving library driving operations after starting the engine is solved, and the driving experience of the vehicle is improved.

[0085] Fig. 7 is a structural schematic diagram of a vehicle provided by an embodiment of the present application. The vehicle can include:

[0086] The memory 701, the processor 702 and the computer program stored in the memory 701 and executable on the processor 702.

[0087] The processor 702 implements the vehicle control method provided in the above embodiments when executing the program.

[0088] Further, the vehicle further includes:

[0089] The communication interface 703 is used for communication between the memory 701 and the processor 702.

[0090] The memory 701 is used for storing the computer program executable on the processor 702.

[0091] The memory 701 can include a high-speed RAM memory, and can also include a non-volatile memory, for example, at least one disk memory.

[0092] If the memory 701, the processor 702 and the communication interface 703 are independently implemented, the communication interface 703, the memory 701 and the processor 702 can be connected to each other through a bus and complete communication between each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, only one thick line is used in Fig. 7, but it does not mean that there is only one or one type of bus.

[0093] Optionally, in a specific implementation, if the memory 701, the processor 702 and the communication interface 703 are integrated on a chip, the memory 701, the processor 702 and the communication interface 703 can complete communication between each other through an internal interface.

[0094] The processor 702 can be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or a plurality of integrated circuits configured to implement one or more embodiments of the application.

[0095] The embodiments of the application further provide a computer readable storage medium, which has stored thereon a computer program, and the computer program is executed by a processor to implement the vehicle control method as above.

[0096] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or N embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction and combination.

[0097] In addition, the terms "first", "second" are only used for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "N" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0098] Any process or method descriptions in flow charts or otherwise described herein can be understood as representing code modules, segments, or portions of code that include one or more executable instructions for implementing the specified logic functions or processes, and the preferred embodiments of the application also include the possibility that the described processes can be implemented using hardware that is specifically configured or programmed to perform the described functions, and that the described processes can be implemented using a combination of hardware and software. The scope of the preferred embodiments of the application encompasses the possibility of using, and the process for implementing software that can be expressed as an object or executable code or script using languages including C, C++, Java, Visual Basic, Python, HTML, Adobe Flash, and the like.

[0099] The logic and / or steps represented in the flowcharts and / or described herein, for example, can be considered as a sequence of executable instructions stored in a computer readable medium, which can be executed by an instruction execution system, apparatus or device, such as a computer-based system, processor, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For purposes of this specification, a "computer readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The computer readable medium can be a computer readable storage medium or a computer readable signal medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, and a portable compact disc read-only memory (CD-ROM). In this context, a computer readable storage medium can also be any tangible apparatus that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device.

[0100] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the above embodiments, the N steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As such, if implemented in hardware, and in another embodiment, any of the following technologies, known in the art, or their combinations can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), and the like.

[0101] Those skilled in the art can understand that all or part of the steps carried out by the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium. When the programs are executed, one or a combination of the steps of the method embodiments is included.

[0102] In addition, each of the functional units in the various embodiments of the present application can be integrated in one processing module, or each of the units can be physically present separately, or two or more units can be integrated in one module. The integrated module can be realized in the form of hardware or in the form of a software functional module. When the integrated module is realized in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0103] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A vehicle control method, characterized in that, Includes the following steps: Obtain the vehicle's current battery SOC and current battery voltage, the pressure of both front tires, and the current automatic transmission fluid temperature; When the vehicle meets the preset charging conditions based on the current SOC of the battery, the current voltage of the battery, the pressure of the two front tires, and the current automatic transmission oil temperature, an engine start request is sent to a preset mobile terminal. If a confirmation command based on the engine start request feedback is received, the engine operating speed and generator duty cycle are determined based on the current SOC and current voltage of the battery, and the engine is started to charge the vehicle's battery according to the operating speed and the generator duty cycle.

2. The method according to claim 1, characterized in that, After obtaining the vehicle's current state of charge (SOC) and current battery voltage, the pressure of the two front tires, and the current automatic transmission fluid temperature, the method further includes: Determine whether the current SOC of the battery is lower than a first preset charge level, or whether the current voltage of the battery is lower than a first preset voltage. If the current SOC of the battery is lower than the first preset charge level, or the current voltage of the battery is lower than the first preset voltage, then it is determined that the vehicle meets the preset charging conditions; otherwise, if the current SOC of the battery is lower than the second preset charge level or the current voltage of the battery is lower than the second preset voltage, then it is determined whether the current automatic transmission oil temperature is lower than the preset oil temperature, or whether at least one front tire pressure is lower than the preset tire pressure. If the current automatic transmission oil temperature is lower than the preset oil temperature, or the pressure of at least one front tire is lower than the preset tire pressure, then the vehicle is determined to meet the preset charging conditions, wherein the second preset voltage is higher than the first preset voltage, and the second preset charge is higher than the first preset charge.

3. The method according to claim 2, characterized in that, After obtaining the vehicle's current state of charge (SOC) and current battery voltage, the pressure of the two front tires, and the current automatic transmission fluid temperature, the method further includes: If the current SOC of the battery is not lower than the first preset charge and the current voltage of the battery is not lower than the first preset voltage, then determine whether the current SOC of the battery is lower than the second preset charge or whether the current voltage of the battery is lower than the second preset voltage. If the current SOC of the battery is not lower than the second preset charge and the current voltage of the battery is not lower than the second preset voltage, then it is determined that the vehicle does not meet the preset charging conditions. If the current SOC of the battery is lower than the second preset charge or the current voltage of the battery is lower than the second preset voltage, then it is determined whether the pressure of both front tires is not lower than the preset tire pressure and whether the current automatic transmission oil temperature is not lower than the preset oil temperature. If the pressure of both front tires is not lower than the preset tire pressure, and the current automatic transmission oil temperature is not lower than the preset oil temperature, then the vehicle is determined not to meet the preset charging conditions.

4. The method according to claim 1, characterized in that, After sending the engine start request to the preset mobile terminal, the process includes: Determine whether a rejection instruction sent by the mobile terminal based on the engine start request has been received, or determine whether a confirmation instruction from the mobile terminal has not been received within the preset time period; If the rejection instruction is received, the engine start request is sent to the preset mobile terminal according to a preset cycle. If the confirmation instruction is not received within the preset time period, the engine start request is immediately sent to the preset mobile terminal. If the number of times the request is sent is greater than or equal to a preset number, it is determined that the driver refuses to start the engine.

5. The method according to claim 1, characterized in that, When starting the engine to charge the vehicle's battery according to the operating speed and the power generation duty cycle, the following are included: The first target operating speed of the engine is determined based on the current SOC and current voltage of the battery, and it is determined whether the engine has entered the warm-up mode. If the engine enters the warm-up mode, the larger of the first target operating speed of the engine and the second target operating speed in the warm-up mode is taken as the third target operating speed of the engine; otherwise, the first target operating speed of the engine is taken as the third target operating speed of the engine. The engine's third target operating speed is used as the final target control speed for engine operation to control engine operation.

6. The method according to claim 3, characterized in that, After starting the engine to charge the vehicle's battery according to the operating speed and the power generation duty cycle, the process includes: Detect the current SOC and current voltage of the battery; If the current SOC of the battery is higher than the third preset charge level and the current voltage of the battery is higher than the third preset voltage, then the engine is controlled to shut off, wherein the third preset charge level is higher than the second preset charge level and the third preset voltage is higher than the second preset voltage.

7. A vehicle control device, characterized in that, include: The acquisition module is used to acquire the vehicle's current SOC and current battery voltage, the pressure of the two front tires, and the current automatic transmission fluid temperature; The sending module is used to send an engine start request to a preset mobile terminal when the vehicle meets the preset charging conditions based on the current SOC of the battery, the current voltage of the battery, the pressure of the two front tires and the current automatic transmission oil temperature. The control module is configured to, upon receiving a determination instruction based on the feedback of the engine start request, determine the operating speed of the engine and the power generation duty cycle of the generator based on the current SOC and current voltage of the battery, and start the engine to charge the vehicle's battery according to the operating speed and the power generation duty cycle.

8. The apparatus according to claim 7, characterized in that, After acquiring the current SOC and current voltage of the vehicle's battery, the pressure of the two front tires, and the current automatic transmission fluid temperature, the acquisition module is further configured to: Determine whether the current SOC of the battery is lower than a first preset charge level, or whether the current voltage of the battery is lower than a first preset voltage. If the current SOC of the battery is lower than the first preset charge level, or the current voltage of the battery is lower than the first preset voltage, then it is determined that the vehicle meets the preset charging conditions; otherwise, if the current SOC of the battery is lower than the second preset charge level or the current voltage of the battery is lower than the second preset voltage, then it is determined whether the current automatic transmission oil temperature is lower than the preset oil temperature, or whether at least one front tire pressure is lower than the preset tire pressure. If the current automatic transmission oil temperature is lower than the preset oil temperature, or at least one front tire pressure is lower than the preset tire pressure, then the vehicle is determined to meet the preset charging conditions, wherein the second preset voltage is higher than the first preset voltage, and the second preset charge is higher than the first preset charge.

9. A vehicle, characterized in that, Including memory and processor; The processor reads executable program code stored in the memory to run a program corresponding to the executable program code, so as to implement the vehicle control method as described in any one of claims 1-6.

10. A computer-readable storage medium storing a computer program, characterized in that, When the program is executed by the processor, it implements the vehicle control method as described in any one of claims 1-6.

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