Towing mode control method and apparatus, electronic device, and vehicle

Abstract

The present application provides a towing mode control method and apparatus, an electronic device, and a vehicle. The method comprises: in response to entering a towing mode, acquiring engine water temperature, the current state of charge of a power battery, and driving state data; in response to the current state of charge being lower than a target state of charge and the engine water temperature being less than or equal to a limit threshold, determining a driving torque on the basis of the driving state data, and controlling an engine to output the driving torque; determining a first power generation torque on the basis of the driving state data, and controlling the engine to output the first power generation torque; in response to the current state of charge being lower than the target state of charge and the engine water temperature being greater than the limit threshold, determining a driving torque on the basis of the driving state data, and controlling the engine to output the driving torque; and determining a second power generation torque on the basis of the driving state data, and controlling the engine to output the second power generation torque to only supply power to a vehicle-mounted electric device. The present application balances the state of charge of the power battery and the engine water temperature, and ensures the vehicle performance and user experience in a towing mode.

Description

Trailer mode control method and device, electronic equipment and vehicle

[0001] The present application claims priority to the application with the application number 202410808287.4, the title of "Trailer mode control method and device, electronic equipment and vehicle", which was filed with the China Patent Office on June 21, 2024, and the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicle control, in particular to a trailer mode control method, device, electronic equipment and vehicle. BACKGROUND

[0003] In the process of using a new energy vehicle, there is a working condition of towing and rescuing other vehicles. In this case, the trailer mode is entered.

[0004] However, when the new energy vehicle is in the trailer mode for a long time, the power battery will have the problem of rapid consumption of electric quantity, which will cause poor vehicle power. In addition, the engine will be in a high load working condition for a long time, which will cause the problem of rising engine water temperature, and will also affect the engine capacity, and even affect the power of the vehicle and the driving experience of the driver. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a trailer mode control method, device, electronic equipment and vehicle, so as to execute different control strategies after the vehicle enters the trailer mode, balance the state of charge of the power battery and the engine water temperature, and thus guarantee the vehicle performance and user experience in the trailer mode.

[0006] In order to achieve the above purpose, the present application provides a trailer mode control method, which comprises:

[0007] In response to entering the trailer mode, the engine water temperature, the current state of charge of the power battery and the driving state data are obtained;

[0008] In response to the current state of charge being less than the target state of charge and the engine water temperature being less than or equal to the limit threshold, the driving torque is determined according to the driving state data, the engine is controlled to output the driving torque to provide driving force for the vehicle, the first power generation torque is determined according to the driving state data, and the engine is controlled to output the first power generation torque to charge the power battery and provide electric energy for the on-board electrical equipment;

[0009] In response to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold, a driving torque is determined according to the driving state data, the engine is controlled to output the driving torque to provide driving force for the vehicle, a second power generation torque is determined according to the driving state data, and the engine is controlled to output the second power generation torque to provide electric energy for the on-board electrical equipment; wherein the target state of charge is the maximum state of charge triggering the engine to charge the power battery.

[0010] To achieve the above object, the present application provides a trailer mode control device, comprising a processor configured to execute the following program modules stored in a memory:

[0011] A data acquisition module configured to acquire the engine water temperature, the current state of charge of the power battery and the driving state data in response to entering the trailer mode;

[0012] A first control module configured to determine a driving torque according to the driving state data and control the engine to output the driving torque to provide driving force for the vehicle in response to the current state of charge being less than the target state of charge and the engine water temperature being less than or equal to the limit threshold; and determine a first power generation torque according to the driving state data and control the engine to output the first power generation torque to charge the power battery and provide electric energy for the on-board electrical equipment;

[0013] A second control module configured to determine a driving torque according to the driving state data and control the engine to output the driving torque to provide driving force for the vehicle in response to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold; and determine a second power generation torque according to the driving state data and control the engine to output the second power generation torque to provide electric energy for the on-board electrical equipment; wherein the target state of charge is the maximum state of charge triggering the engine to charge the power battery.

[0014] To achieve the above object, the present application further provides an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the trailer mode control method according to any one of the embodiments of the present application.

[0015] To achieve the above object, the present application further provides a vehicle comprising the electronic device according to any one of the embodiments of the present application.

[0016] As can be seen from the above, the trailer mode control provided in the application obtains the engine water temperature, the current state of charge of the power battery and the driving state data in response to entering the trailer mode, and considers that the engine water temperature can support the engine output torque to charge the power battery in response to the current state of charge being less than the target state of charge and the engine water temperature being less than or equal to the limit threshold, so the driving torque is determined according to the driving state data, the engine is controlled to output the driving torque to provide driving force for the vehicle, the first power generation torque is determined according to the driving state data, the engine is controlled to output the first power generation torque to charge the power battery and provide electric energy for the on-board electrical equipment, so that the engine charges the power battery while providing driving force and providing electric energy for the on-board electrical equipment in this case, the engine water temperature does not support the engine output torque to charge the power battery in response to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold, so the driving torque is determined according to the driving state data, the engine is controlled to output the driving torque to provide driving force for the vehicle, the second power generation torque is determined according to the driving state data, the engine is controlled to output the second power generation torque to provide electric energy for the on-board electrical equipment, and charging of the power battery is stopped, different control strategies are implemented after the vehicle enters the trailer mode, the state of charge of the power battery and the balance of the engine water temperature are considered, the problem that the engine water temperature is difficult to decrease due to the engine being in a high load working condition is avoided, and thus the vehicle performance and user experience in the trailer mode are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the application or the related art, the accompanying drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only embodiments of the application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort.

[0018] FIG. 1 is a flowchart of a trailer mode control method provided in an embodiment of the application;

[0019] FIG. 2 is a flowchart of another trailer mode control method provided in an embodiment of the application;

[0020] FIG. 3 is a structural schematic diagram of a trailer mode control device provided in an embodiment of the application;

[0021] FIG. 4 is a schematic diagram of an electronic device hardware structure provided in an embodiment of the application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the application more clear, the application will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0023] It should be noted that, unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of the present application belong. The terms "first", "second", and similar terms used in the embodiments of the present application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships can also change accordingly.

[0024] When the new energy vehicle is in the towed mode for a long time, the problem of rapid consumption of electric quantity and high engine water temperature may occur, which leads to poor vehicle power performance. The main reason is that the pure electric mode consumes a large amount of electric energy, causing the power battery to be in a low electric quantity state for a long time, and unable to provide power assistance to the vehicle. Moreover, the engine needs to charge the power battery and drive the vehicle to move when the power battery is in a low electric quantity state, and the engine is in a high load working condition for a long time, which causes the engine to operate in a high load state for a long time, resulting in the problem of high engine water temperature. High engine water temperature also affects the engine capacity, and further affects the power performance of the vehicle and the driving experience of the driver.

[0025] FIG. 1 is a flowchart of a towed mode control method provided by the embodiments of the present application, mainly suitable for responding to the vehicle starting the towed mode, combining the engine water temperature and the current state of charge to select a suitable control strategy to adjust the engine output torque. The method can be configured in an electronic device. As shown in FIG. 1, the method can specifically include the following steps:

[0026] S110, in response to entering the towed mode, obtaining the engine water temperature, the current state of charge of the power battery, and the driving state data.

[0027] The towed mode is a working mode started when the vehicle drags or pulls other vehicles. The engine water temperature is the temperature of the coolant of the engine, which can be obtained based on a water temperature measuring device. The power battery is a power source that provides power for the vehicle. The current state of charge is the percentage of the electric quantity of the power battery at the current time. The driving state data is data related to vehicle driving and data related to vehicle use state, for example: the consumption power of the vehicle-mounted electrical equipment, the accelerator pedal opening degree, etc.

[0028] Specifically, in response to entering the trailer mode, the engine water temperature can be obtained through a water temperature measuring device in the engine coolant, the current state of charge of the power battery can be obtained through a battery management system, and various types of driving state data can be obtained.

[0029] On the basis of the above examples, since in the trailer mode, the power battery is at a high state of charge, the motor can provide positive assistance without generating electricity, which can effectively improve the power of the vehicle. Therefore, a suitable target state of charge helps to complete the trailer working condition, and thus the target state of charge in the trailer mode can be corrected. Accordingly, the target state of charge can be corrected before the engine water temperature, the current state of charge of the power battery, and the driving state data are obtained. Specifically, the target state of charge can be corrected by:

[0030] Obtaining travel path parameters and vehicle motion parameters;

[0031] Determining a corrected state of charge according to the travel path parameters and the vehicle motion parameters;

[0032] Taking the sum of the corrected state of charge and the target state of charge as the target state of charge after the first correction operation.

[0033] The travel path parameters are various road conditions in the planned path of the vehicle traveling to the vehicle travel destination, such as total distance, ramp distance, etc. The vehicle motion parameters are parameters related to the motion performance of the vehicle, such as speed, acceleration, etc. The corrected state of charge is the state of charge increased according to the path planning and driving habits. The first correction operation is an operation of increasing the target state of charge according to the path planning and driving habits. The target state of charge is the maximum state of charge that triggers the engine to charge the power battery. It can be understood that, in response to the current state of charge of the power battery being less than the target state of charge, the power battery stops discharging and can be charged. In response to the current state of charge of the power battery being greater than or equal to the target state of charge, the power battery stops charging and can be discharged. It can be understood that the purpose of charging and discharging the power battery is to maintain the current state of charge around the target state of charge, which can maximize the service life and performance of the power battery. If the current state of charge is too low or too high, it will adversely affect the power battery. In response to the current state of charge being too low, it can cause deep discharge or over-discharge, and thus cause oxidation reaction and structural damage. In response to the current state of charge being too high, it can cause overcharging, temperature rise, etc. Optionally, the charging and discharging switching process is set to have a minimum charging and discharging switching time, etc., to avoid too frequent charging and discharging.

[0034] Specifically, in combination with the navigation map, the driving path parameters of various types can be obtained, and based on the analysis of the driving habits of the driver, the vehicle motion parameters of various types can be obtained. Different types of driving path parameters and different types of vehicle motion parameters can be pre-established to correspond to the state of charge respectively after being combined. Therefore, the driving path parameters and the vehicle motion parameters obtained at present can be matched by matching, and the state of charge obtained is the corrected state of charge. The driving path parameters, the vehicle motion parameters and the corrected state of charge can also be combined to construct a machine learning model, so that the input driving path parameters and vehicle motion parameters can obtain the corresponding corrected state of charge. After obtaining the corrected state of charge, the target state of charge in the non-trailer mode is improved by the corrected state of charge, that is, the corrected state of charge and the target state of charge are summed, and the sum of the sum operation is used as the target state of charge after the first correction operation.

[0035] For example, according to the user-set vehicle driving destination and map information, the driving path parameters can be determined, such as: the distance is more than 6km, the vehicle speed slope working condition is more than 2km, according to the user's driving, the vehicle motion parameters can be determined, such as: 30km / h vehicle speed, and then through matching, the corrected state of charge is determined to be 5%, the target state of charge 30% is corrected, and the target state of charge after the first correction operation is 35%.

[0036] Optionally, the driving path parameters and the vehicle motion parameters can be obtained in the following manner:

[0037] According to the user's operation of the navigation map, the vehicle driving destination is obtained;

[0038] According to the current vehicle position and the vehicle driving destination, the path planning is performed on the navigation map to obtain the navigation path, and the driving path parameters are determined according to the navigation path;

[0039] The driving habits of the user are analyzed to determine the vehicle motion parameters.

[0040] Among them, the navigation map is a map used for path planning by the user. The vehicle driving destination is the place that the user finally wants to reach. The navigation path is the path planned between the current vehicle position and the vehicle driving destination. The driving habits are the data generated during the historical driving of the user.

[0041] Specifically, the user can navigate by operating the navigation map, so the vehicle driving destination can be obtained on the navigation map operated by the user. Further, combined with the current vehicle position, the vehicle driving destination, and the road condition information in the navigation map, etc., the path planning is performed, the navigation path can be obtained, and the analysis of the path parameters of the navigation path is performed to obtain the driving path parameters. The data of the user's historical driving is obtained, and the driving habit is obtained by statistics, and the vehicle motion parameters of the user driving the vehicle are obtained. In response to the absence of the user's historical driving data, the mean value of the vehicle motion parameters corresponding to all users recorded by the vehicle can be used as the vehicle motion parameters corresponding to the user.

[0042] On the basis of the above examples, after taking the sum value of the corrected state of charge and the target state of charge as the target state of charge after the first correction operation, the pre-calibrated calibration state of charge can be matched according to the type of the power battery and the type of the motor, so as to more effectively correct the target state of charge. Specifically, it can be:

[0043] Determine the type of the power battery and the type of the motor, and determine the calibration state of charge according to the type of the power battery and the type of the motor;

[0044] Taking the maximum value of the calibration state of charge and the target state of charge after the first correction operation as the target state of charge after the second correction operation.

[0045] The type of the power battery can include the brand, model, capacity, etc. of the power battery. The type of the motor can include the brand, model, maximum speed, rated power, etc. The calibration state of charge is the appropriate state of charge of different types of power batteries and different types of motors in the trailer mode through pre-vehicle test calibration. The second correction operation is a further correction operation of the target state of charge in combination with the calibration state of charge on the basis of the first correction operation.

[0046] Specifically, the type of the power battery and the type of the motor are determined, and the calibration state of charge corresponding to the configuration of the current vehicle is matched and determined from the calibration state of charge corresponding to the combination of different types of power batteries and different types of motors. Since the target state of charge needs to be improved, the maximum value of the calibration state of charge and the target state of charge after the first correction operation can be taken as the target state of charge after the second correction operation, so as to further improve the target state of charge in the trailer mode, which helps to complete the trailer working condition.

[0047] S120, in response to the current state of charge being less than the target state of charge and the engine water temperature being less than or equal to the limit threshold, determining the driving torque according to the driving state data, controlling the engine to output the driving torque to provide driving force for the vehicle; determining the first power generation torque according to the driving state data, and controlling the engine to output the first power generation torque to charge the power battery and provide power for the vehicle-mounted electrical equipment.

[0048] The target state of charge is the maximum state of charge at which the engine triggers to charge the power battery. The driving torque is a torque used to provide driving force for the vehicle, and the driving force is the driving power of the vehicle. The first power generation torque is a torque output to the motor for charging the power battery and for use by the vehicle-mounted electrical equipment.

[0049] Specifically, in response to the current state of charge being less than the target state of charge, it indicates that the power battery needs to be charged. In response to the engine water temperature being less than or equal to the limit threshold, it indicates that the engine has surplus capacity to withstand higher load, so that the engine uses the remaining capacity to charge the power battery while ensuring that the vehicle-mounted electrical equipment can be used. Therefore, the driving torque can be determined by the accelerator pedal opening degree in the driving state data, and the engine is controlled to output the driving torque to provide driving force for the vehicle. Further, by calculating the current state of charge, the target state of charge, the maximum torque of the engine and the power consumption of the vehicle-mounted electrical equipment in the driving state data, the remaining capacity of the engine can be obtained to output to the motor, and the first power generation torque can be obtained. Then, the engine is controlled to output the first power generation torque to charge the power battery through the motor, and to supply power to the vehicle-mounted electrical equipment.

[0050] S130, in response to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold, determining the driving torque according to the driving state data, controlling the engine to output the driving torque to provide driving force for the vehicle; determining the second power generation torque according to the driving state data, and controlling the engine to output the second power generation torque to provide power for the vehicle-mounted electrical equipment.

[0051] The second power generation torque is a torque output to the motor for use only by the vehicle-mounted electrical equipment.

[0052] Specifically, in response to the current state of charge being less than the target state of charge, it indicates that the power battery needs to be charged. However, in response to the engine water temperature being greater than the limit threshold, it indicates that the engine cannot bear higher load, and therefore, the charging of the power battery is stopped until the engine water temperature is reduced below the limit threshold. The driving torque can be determined by the accelerator pedal opening degree in the driving state data, and the engine is controlled to output the driving torque to provide driving force for the vehicle. Further, by calculating the power consumption of the on-board electrical equipment in the driving state data, the second power generation torque of the engine when the remaining capacity of the engine is output to the motor can be obtained, and then the engine is controlled to output the second power generation torque to supply power to the on-board electrical equipment through the motor, and at this time, the power battery is not charged.

[0053] On the basis of the above examples, since the trailer mode causes high load operation of the engine, in order to avoid the engine water temperature rising too fast, the engine cooling system can also be used to cool the engine with maximum capacity, and in response to exiting the trailer mode, the mode of controlling the engine cooling system according to the engine water temperature is restored, which can be specifically:

[0054] controlling the engine cooling system to cool the engine according to the maximum cooling duty cycle;

[0055] in response to exiting the trailer mode, determining the working duty cycle according to the engine water temperature, and controlling the engine cooling system to cool the engine according to the working duty cycle.

[0056] The engine cooling system is a cooling system that reduces the engine water temperature, such as a cooling fan. The maximum cooling duty cycle is the duty cycle corresponding to the maximum cooling effect that the engine cooling system can provide, such as 90%. For example, in response to the engine cooling system being a cooling fan, the maximum cooling duty cycle is determined, and therefore, the duty cycle of the cooling fan can be set to 90% to make the cooling fan work at the maximum speed. The working duty cycle is the duty cycle of the engine cooling system adjusted according to the engine water temperature. It can be understood that the higher the engine water temperature, the greater the working duty cycle.

[0057] Specifically, since the trailer mode has a higher demand on the working load of the engine, as long as the trailer mode is turned on, the engine cooling system can be started at the maximum capacity to slow down the rise of the engine water temperature. That is, the engine cooling system is controlled to cool the engine at the maximum cooling duty ratio. In response to exiting the trailer mode, the normal control strategy for the engine cooling system can be restored, specifically, the engine water temperature is obtained, the engine water temperature is converted into a working duty ratio through table lookup or calculation, and the engine cooling system is controlled to cool the engine at the working duty ratio, so that the engine cooling system can provide different cooling effects at different engine water temperatures to achieve adaptive adjustment.

[0058] On the basis of the above examples, in response to the current state of charge being greater than or equal to the target state of charge, it is indicated that the power battery does not need to continue to be charged, can also provide positive assistance for the travel of the vehicle in the case of a great required driving force, and can stop the engine from charging the power battery and use the power battery to provide electric energy to the vehicle-mounted electrical equipment. Therefore, in response to the current state of charge being greater than or equal to the target state of charge, the driving torque is determined according to the driving state data, the engine is controlled to output the driving torque to provide driving force for the vehicle, and the third power generation torque is determined according to the driving state data, and the power battery is controlled to provide electric energy to the vehicle-mounted electrical equipment.

[0059] Specifically, in response to the current state of charge being greater than or equal to the target state of charge, the power battery does not need to continue to be charged and can supply electric energy to the vehicle-mounted electrical equipment. The driving torque can be determined according to the accelerator pedal opening in the driving state data, and the engine is controlled to output the driving torque to provide driving force for the vehicle. At this time, the engine is controlled to stop providing torque to the motor, and since the power battery is in a high state of charge, the power battery can be used to provide electric energy to the vehicle-mounted electrical equipment. That is, the consumption power of the vehicle-mounted electrical equipment in the driving state data is calculated, and then the power battery is controlled to output electric energy to supply electric energy to the vehicle-mounted electrical equipment, at this time the power battery is in a discharging state.

[0060] Optionally, if the current state of charge is greater than or equal to the target state of charge, in response to the engine being unable to provide driving torque alone, the power battery can be used to provide assistance, therefore, the driving torque can be determined according to the driving state data in the following manner, and the engine is controlled to output the driving torque to provide driving force for the vehicle:

[0061] In response to the accelerator pedal opening in the driving state data being greater than a preset pedal opening, the driving torque is determined according to the accelerator pedal opening, and the engine and the power battery are controlled to output the driving torque to provide driving force for the vehicle.

[0062] The preset pedal opening degree is a preset opening degree of the accelerator pedal. In response to the opening degree of the accelerator pedal exceeding the preset pedal opening degree, the engine cannot meet the demand even if the maximum torque is increased. Therefore, the power battery is introduced to provide assistance.

[0063] Specifically, in response to the current state of charge being greater than or equal to the target state of charge, it is indicated that the power battery can be discharged. At this time, in response to the opening degree of the accelerator pedal in the driving state data being greater than the preset pedal opening degree, the driving torque is determined according to the opening degree of the accelerator pedal. However, the torque provided by the engine alone cannot reach the driving torque. At this time, the power battery can be used to provide power to the motor, so that the motor outputs torque to provide assistance. That is, the engine and the power battery provide part of the driving torque respectively, and the sum of the two reaches the driving torque. Therefore, the engine and the power battery jointly output the driving torque to provide driving force for the vehicle. The torque distribution between the engine and the power battery is not specifically limited in this embodiment.

[0064] It should be noted that after entering the trailer mode, the vehicle exits the pure electric mode.

[0065] The above-mentioned mode can provide driving force through the engine and provide assistance through the power battery when needed, so as to avoid the situation that the state of charge of the power battery decreases too quickly and the power performance of the vehicle cannot be guaranteed.

[0066] The trailer mode control method provided by the embodiment can obtain the engine water temperature, the current state of charge of the power battery and the driving state data in response to entering the trailer mode. If the current state of charge is less than the target state of charge and the engine water temperature is less than or equal to the limit threshold, it is considered that the engine water temperature can support the engine output torque to charge the power battery. Therefore, the driving torque is determined according to the driving state data, the engine output driving torque is controlled to provide driving force for the vehicle, the first power generation torque is determined according to the driving state data, the engine output first power generation torque is controlled to charge the power battery and provide electric energy for the vehicle-mounted electrical equipment. In this case, the engine charges the power battery while providing driving force and electric energy for the vehicle-mounted electrical equipment. If the current state of charge is less than the target state of charge and the engine water temperature is greater than the limit threshold, it is considered that the engine water temperature cannot support the engine output torque to charge the power battery. Therefore, the driving torque is determined according to the driving state data, the engine output driving torque is controlled to provide driving force for the vehicle, the second power generation torque is determined according to the driving state data, the engine output second power generation torque is controlled to provide electric energy for the vehicle-mounted electrical equipment, and the charging of the power battery is stopped. After the vehicle enters the trailer mode, different control strategies are executed to balance the state of charge of the power battery and the engine water temperature, thereby avoiding the problem that the engine water temperature is difficult to decrease due to the high load working condition of the engine, and the vehicle performance and user experience in the trailer mode are ensured.

[0067] FIG. 2 is a flowchart of another trailer mode control method provided by the embodiment of the application. On the basis of the above-mentioned embodiments, the determination methods of the first power generation torque and the second power generation torque are exemplarily described. The explanations of the same or corresponding terms as those in the above-mentioned embodiments are not repeated here. As shown in FIG. 2, the method can specifically include the following steps:

[0068] S210, in response to entering the trailer mode, the engine water temperature, the current state of charge of the power battery and the driving state data are obtained.

[0069] S220, in response to the current state of charge being less than the target state of charge, it is determined whether the engine water temperature is less than or equal to the limit threshold. If yes, S230 is executed; if no, S270 is executed.

[0070] S230, the driving torque is determined according to the driving state data, the engine output driving torque is controlled to provide driving force for the vehicle, and S240 is executed.

[0071] S240, the first torque corresponding to the vehicle-mounted electrical equipment and the second torque corresponding to the power battery are determined according to the driving state data, and S250 is executed.

[0072] The first torque is a torque provided for the vehicle-mounted electrical equipment. The second torque is a torque provided for the power battery.

[0073] Specifically, according to the data related to the vehicle-mounted electrical equipment in the driving state data, the torque required by the vehicle-mounted electrical equipment, that is, the first torque, is calculated. According to the data related to the state of charge of the power battery in the driving state data, the torque required for charging the power battery, that is, the second torque, can be calculated, for example, the greater the difference between the current nuclear charge number and the target nuclear charge number, the greater the second torque, and the like.

[0074] On the basis of the above example, the driving state data includes the consumption power of the vehicle-mounted electrical equipment, the accelerator pedal opening degree, and the maximum torque of the engine. The first torque corresponding to the vehicle-mounted electrical equipment and the second torque corresponding to the power battery can be determined according to the driving state data in the following manner:

[0075] According to the consumption power of the vehicle-mounted electrical equipment, the first torque corresponding to the vehicle-mounted electrical equipment is determined;

[0076] According to the current state of charge and the target state of charge, the third torque is determined;

[0077] According to the accelerator pedal opening degree, the maximum torque of the engine, and the first torque, the fourth torque is determined;

[0078] The minimum value of the third torque and the fourth torque is taken as the second torque corresponding to the power battery.

[0079] The consumption power is the power consumed by the auxiliary electrical equipment related to driving comfort and the basic electrical equipment related to vehicle driving currently enabled by the vehicle. The third torque is the torque required for charging the power battery determined in combination with the current state of charge and the target state of charge. The maximum torque of the engine is the maximum available torque that can be output by the engine after the engine is started, which can be the difference between the maximum torque that can be output by the engine after the engine is started and the reserved torque. The fourth torque is the torque that can be provided for charging the power battery in addition to the driving torque and the first torque by fully utilizing the output capability of the engine.

[0080] Specifically, the power of each current opened vehicle electrical equipment is acquired, the sum of these powers is taken as the consumed power, and the consumed power can be converted in combination with parameters such as the energy conversion efficiency of the motor to obtain the torque corresponding to the vehicle electrical equipment, which is the first torque. The target state of charge is subtracted from the current state of charge to obtain the to-be-charged state of charge, and according to the correspondence between the to-be-charged state of charge and the torque established in advance, the torque corresponding to the current to-be-charged state of charge, that is, the third torque, can be obtained. The accelerator pedal opening degree can be converted into the driving torque, and the fourth torque, that is, the torque that can be used when the remaining capacity of the engine is fully utilized to charge the power battery, can be obtained by subtracting the first torque and the driving torque from the maximum torque of the engine. In order to ensure the health degree of the power battery and the use effect of the engine, the minimum value of the third torque and the fourth torque is taken as the second torque corresponding to the power battery.

[0081] In response to the engine water temperature being less than or equal to the first threshold value, the sum of the first torque and the second torque is taken as the first generation torque; in response to the engine water temperature being greater than the first threshold value, the first generation torque is determined according to the first limit power corresponding to the auxiliary electrical equipment, the first torque, the preset limit ratio and the second torque, and S260 is executed.

[0082] The first threshold value is less than the limit threshold value, and the first threshold value is the engine water temperature for judging whether to reduce the first torque and the second torque. The first limit power is the highest power that the auxiliary electrical equipment is limited to use when the engine water temperature is less than or equal to the first threshold value. The vehicle electrical equipment includes basic electrical equipment related to vehicle driving and auxiliary electrical equipment related to driving comfort. The basic electrical equipment can be understood as equipment that must be used when the vehicle is driving, and the auxiliary electrical equipment can be understood as equipment that can be selected for use in order to improve the comfort and other performance of the vehicle, such as air conditioning. The preset limit ratio is a percentage preset for limiting charging of the power battery, and the preset limit ratio is less than 1.

[0083] Specifically, in response to the engine water temperature being less than or equal to the first threshold value, it is indicated that the engine can fully output torque, and therefore the sum of the first torque and the second torque can be taken as the first generation torque. In response to the engine water temperature being greater than the first threshold value, it is indicated that the engine water temperature is a little high, and the power used by the auxiliary electrical equipment and the torque required by the power battery need to be reduced to a certain extent, and therefore the first torque and the second torque are limited according to the first limit power and the preset limit ratio to obtain the first generation torque.

[0084] On the basis of the above examples, the first generation torque can be determined according to the first limit power corresponding to the auxiliary electrical equipment, the first torque, the preset limit ratio and the second torque in the following manner:

[0085] According to the first limited power corresponding to the auxiliary electric device, the first torque is reduced to obtain a reduced first torque;

[0086] According to the preset limit ratio, the second torque is reduced to obtain a reduced second torque;

[0087] The sum of the reduced first torque and the reduced second torque is taken as the first generation torque.

[0088] Specifically, in response to the engine water temperature being greater than the first threshold value, it is indicated that the engine water temperature is a little high, and the use power of the auxiliary electric device and the torque required by the power battery need to be reduced. Therefore, the use power of the auxiliary electric device is limited according to the first limited power, that is, the use power of the auxiliary electric device is limited to the first limited power at most. Accordingly, the reduced first torque can be recalculated. Moreover, the preset limit ratio is multiplied by the second torque to reduce the second torque to obtain the reduced second torque. Furthermore, the sum of the reduced first torque and the reduced second torque is taken as the first generation torque to reduce the engine load.

[0089] S260, controlling the engine to output the first generation torque to charge the power battery and provide electric energy for the vehicle electric device.

[0090] S270, determining the driving torque according to the driving state data, controlling the engine to output the driving torque to provide driving force for the vehicle, and performing S280.

[0091] S280, in response to the engine water temperature being less than or equal to the second threshold value, reducing the use power of the auxiliary electric device to the second limited power, and determining the second generation torque according to the sum of the use power of the basic electric device and the second limited power; in response to the engine water temperature being greater than the second threshold value, determining the second generation torque according to the use power of the basic electric device, and performing S290.

[0092] The second threshold value is greater than the limit threshold value, and the second threshold value is the engine water temperature used to distinguish whether to further reduce the use power of the auxiliary electric device or to stop using the auxiliary electric device to reduce the second generation torque. The driving state data includes the use power of the basic electric device related to the vehicle driving and the use power of the auxiliary electric device related to the driving comfort in the vehicle electric device. The vehicle electric device includes the basic electric device and the auxiliary electric device. The second limited power limits the maximum power used by the auxiliary electric device when the engine water temperature is less than or equal to the second threshold value and greater than the limit threshold value. It can be understood that the second limited power is less than the first limited power.

[0093] Specifically, in response to the engine water temperature being greater than the limit threshold and less than or equal to the second threshold, it indicates that the engine water temperature is higher, and the use power of the auxiliary electrical equipment needs to be re-limited on the basis of the above-mentioned use power limitation of the auxiliary electrical equipment to further reduce the use power of the auxiliary electrical equipment, and the charging of the power battery is stopped, therefore, the use power of the auxiliary electrical equipment is limited according to the second limited power, that is, the use power of the auxiliary electrical equipment is limited to the second limited power at most, accordingly, the sum of the use power of the basic electrical equipment and the second limited power can be taken as the limited consumption power, and the limited consumption power is converted to obtain the torque as the second generated torque, so as to further reduce the load of the engine and avoid the engine from generating a large amount of heat. In response to the engine water temperature being greater than the second threshold, it indicates that the engine water temperature is already very high, which will seriously affect the use of the vehicle, therefore, the load of the engine needs to be further reduced, in this case, the use of the auxiliary electrical equipment needs to be stopped, so that the auxiliary electrical equipment such as air conditioner will not discharge heat to the vicinity of the engine coolant due to use, and the load of the engine itself can be reduced, the self-heat generation is reduced, which is helpful to quickly reduce the engine water temperature. Therefore, only the basic electrical equipment is used, the use power of the basic electrical equipment is taken as the limited consumption power, and the limited consumption power is converted to obtain the torque as the second generated torque.

[0094] S290, control the engine to output the second generated torque to provide electric energy for the vehicle electrical equipment.

[0095] It can be understood that after the current state of charge is less than the target state of charge, the engine needs to maintain charging the power battery, maintain the consumption of the air conditioner and other equipment, and drive the large load working condition of the trailer, at this time, the charging of the power battery and the use function of the auxiliary electrical equipment need to be limited in different stages according to the engine water temperature, so as to reduce the load of the engine and maintain the performance of the vehicle as much as possible.

[0096] For example, according to the engine water temperature, three situations of limiting the use of the engine and one situation of normally maintaining the charging of the power battery and the consumption of the on-board electrical equipment can be obtained when the engine water temperature is less than a first threshold value. For example, in response to the engine water temperature being greater than 112 degrees (the first threshold value) and less than or equal to 114 degrees (a limiting threshold value), a first level of limitation is performed: limiting the auxiliary electrical equipment such as the air conditioner to 2 KW (a first limited power), and charging the power battery to a certain extent (reducing the second torque according to a preset limiting proportion), so that the first generated torque can be limited to the sum of the first reduced torque and the second reduced torque after the first level of limitation. In response to the engine water temperature being greater than 114 degrees and less than or equal to 116 degrees (a second threshold value), a second level of limitation is performed: limiting the auxiliary electrical equipment such as the air conditioner to 1 KW (a second limited power), limiting the second generated torque to the torque consumed by the on-board electrical equipment after the second level of limitation, at this time, the power battery is not charged and discharged. In response to the engine water temperature being greater than 116 degrees, a third level of limitation is performed: prohibiting the use of the auxiliary electrical equipment such as the air conditioner to reduce heat generation while reducing the load, limiting the second generated torque to the torque consumed by the on-board electrical equipment after the second level of limitation, i.e., the torque consumed by the basic electrical equipment, to maintain the basic performance of the vehicle.

[0097] The trailer mode control method provided by the embodiment responds to the current state of charge being less than the target state of charge and the engine water temperature being less than or equal to the limit threshold, determines the first torque corresponding to the on-board electrical equipment and the second torque corresponding to the power battery according to the driving state data, and further responds to the engine water temperature being less than or equal to the first threshold, takes the sum of the first torque and the second torque as the first power generation torque, uses the engine to output the first power generation torque to supply power to the on-board electrical equipment and charge the power battery, and responds to the engine water temperature being greater than the first threshold, which indicates that the first power generation torque needs to be limited, so the first torque is reduced according to the first limit power corresponding to the auxiliary electrical equipment to obtain the reduced first torque, the second torque is reduced according to the preset limit ratio to obtain the reduced second torque, and the sum of the reduced first torque and the reduced second torque is taken as the first power generation torque to reduce the first power generation torque to supply power to the on-board electrical equipment and charge the power battery, which can effectively reduce the engine load. The trailer mode control method responds to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold, stops charging the power battery, and responds to the engine water temperature being less than or equal to the second threshold, reduces the use power of the auxiliary electrical equipment to the second limit power, determines the second power generation torque according to the sum of the use power of the basic electrical equipment and the second limit power to further reduce the second power generation torque and reduce the engine load, and responds to the engine water temperature being greater than the second threshold, determines the second power generation torque according to the use power of the basic electrical equipment to maintain the basic performance of the vehicle and avoid the engine from generating a large amount of heat and the auxiliary electrical equipment from generating heat, which realizes different control strategies for balancing the state of charge of the power battery and the engine water temperature, uses different control strategies under different conditions of the engine water temperature, reduces the engine load in layers, and guarantees the vehicle performance and user experience in the trailer mode.

[0098] It should be noted that the method of the embodiment of the present application can be executed by a single device, such as a computer or a server. The method of the embodiment can also be applied to a distributed scenario, and completed by multiple devices cooperating with each other. In this distributed scenario, one of the multiple devices can only execute one or more steps in the method of the embodiment of the present application, and the multiple devices can interact with each other to complete the method.

[0099] It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than the order described above and still achieve desirable results. Additionally, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order, to achieve the desired results. In certain implementations, multitasking and parallel processing can be advantageous.

[0100] Based on the same technical concept, the application also provides a trailer mode control device corresponding to the method of any of the above embodiments. Fig. 3 is a structural schematic diagram of a trailer mode control device provided by an embodiment of the application. Referring to Fig. 3, the trailer mode control device comprises a processor configured to execute the following program modules stored in a memory: a data acquisition module 310, a first control module 320, and a second control module 330.

[0101] The data acquisition module 310 is configured to acquire the engine water temperature, the current state of charge of the power battery, and the driving state data in response to entering the trailer mode. The first control module 320 is configured to determine the driving torque according to the driving state data and control the engine to output the driving torque to provide driving force for the vehicle in response to the current state of charge being less than a target state of charge and the engine water temperature being less than or equal to a limit threshold. The first control module 320 is configured to determine the first power generation torque according to the driving state data and control the engine to output the first power generation torque to charge the power battery and provide electric energy for the vehicle-mounted electrical equipment. The second control module 330 is configured to determine the driving torque according to the driving state data and control the engine to output the driving torque to provide driving force for the vehicle in response to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold. The second control module 330 is configured to determine the second power generation torque according to the driving state data and control the engine to output the second power generation torque to provide electric energy for the vehicle-mounted electrical equipment. The target state of charge is the maximum state of charge at which the engine charges the power battery.

[0102] On the basis of the above examples, the first control module 320 is further configured to determine the first torque corresponding to the vehicle-mounted electrical equipment and the second torque corresponding to the power battery according to the driving state data. The first control module 320 is configured to take the sum of the first torque and the second torque as the first power generation torque in response to the engine water temperature being less than or equal to a first threshold. The first control module 320 is configured to determine the first power generation torque according to the first limit power corresponding to the auxiliary electrical equipment, the first torque, a preset limit proportion, and the second torque in response to the engine water temperature being greater than the first threshold. The first threshold is less than the limit threshold. The vehicle-mounted electrical equipment includes the basic electrical equipment related to vehicle driving and the auxiliary electrical equipment related to driving comfort.

[0103] On the basis of the above examples, the first control module 320 is further configured to reduce the first torque to obtain a reduced first torque according to the first limit power corresponding to the auxiliary electrical equipment. The first control module 320 is configured to reduce the second torque to obtain a reduced second torque according to the preset limit proportion. The first control module 320 is configured to take the sum of the reduced first torque and the reduced second torque as the first power generation torque.

[0104] On the basis of the above examples, optionally, the driving state data includes a consumption power of the vehicle-mounted electrical equipment, an accelerator pedal opening degree, and an engine maximum torque; the first control module 320 is further configured to: determine a first torque corresponding to the vehicle-mounted electrical equipment according to the consumption power of the vehicle-mounted electrical equipment; determine a third torque according to the current state of charge and the target state of charge; determine a fourth torque according to the accelerator pedal opening degree, the engine maximum torque, and the first torque; and take the minimum value of the third torque and the fourth torque as a second torque corresponding to the power battery.

[0105] On the basis of the above examples, optionally, the driving state data includes a use power of a basic electrical equipment related to vehicle driving and a use power of an auxiliary electrical equipment related to driving comfort in the vehicle-mounted electrical equipment; the vehicle-mounted electrical equipment includes the basic electrical equipment and the auxiliary electrical equipment; the second control module 330 is further configured to: in response to the engine water temperature being less than or equal to a second threshold value, reduce the use power of the auxiliary electrical equipment to a second limit power, and determine the second generation torque according to a sum of the use power of the basic electrical equipment and the second limit power; and in response to the engine water temperature being greater than the second threshold value, determine the second generation torque according to the use power of the basic electrical equipment; wherein the second threshold value is greater than the limit threshold value.

[0106] On the basis of the above examples, optionally, before the engine water temperature, the current state of charge of the power battery, and the driving state data are acquired, the method further includes: a first correction module configured to: acquire a driving path parameter and a vehicle motion parameter; and determine a corrected state of charge according to the driving path parameter and the vehicle motion parameter; and take a sum of the corrected state of charge and the target state of charge as the target state of charge after the first correction operation.

[0107] On the basis of the above examples, optionally, the first correction module is further configured to: acquire a vehicle driving destination according to a navigation map of a user operation; perform path planning on the navigation map to obtain a navigation path according to a current vehicle position and the vehicle driving destination, and determine the driving path parameter according to the navigation path; and analyze a driving habit of the user to determine the vehicle motion parameter.

[0108] On the basis of the above examples, optionally, after the sum of the corrected state of charge and the target state of charge is taken as the target state of charge after the first correction operation, the method further includes: a second correction module configured to: determine a type of the power battery and a type of the motor, and determine a calibrated state of charge according to the type of the power battery and the type of the motor; and take a maximum value of the calibrated state of charge and the target state of charge after the first correction operation as the target state of charge after the second correction operation.

[0109] On the basis of the above examples, optionally, the device further comprises a cooling module configured to control the engine cooling system to cool the engine at the maximum cooling duty ratio; in response to exiting the trailer mode, determining a working duty ratio according to the engine water temperature, and controlling the engine cooling system to cool the engine at the working duty ratio.

[0110] On the basis of the above examples, optionally, the device further comprises a third control module configured to, in response to the current state of charge being greater than or equal to the target state of charge, determine a driving torque according to the driving state data, control the engine to output the driving torque to provide driving force for the vehicle, and determine a third power generation torque according to the driving state data, control the power battery to provide electric energy for the vehicle-mounted electric equipment.

[0111] On the basis of the above examples, optionally, the third control module is further configured to, in response to the accelerator pedal opening in the driving state data being greater than a preset pedal opening, determine the driving torque according to the accelerator pedal opening, and control the engine and the power battery to output the driving torque to provide driving force for the vehicle.

[0112] On the basis of the above examples, optionally, after entering the trailer mode, the device further comprises a pure electric mode exit module configured to control the vehicle to exit the pure electric mode.

[0113] For the convenience of description, the above device is described in various modules according to functions. Of course, in the implementation of the present application, the functions of the modules can be implemented in one or more software and / or hardware.

[0114] The device of the above embodiments is used to implement the corresponding trailer mode control method in any of the preceding embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described here again.

[0115] Based on the same technical concept, corresponding to any of the above method embodiments, the present application further provides an electronic device, 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 trailer mode control method of any of the above embodiments.

[0116] FIG. 4 shows a more specific hardware structure of an electronic device according to the present embodiment. The device can include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 for communication within the device.

[0117] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits, etc., for executing relevant programs to implement the technical solutions provided by the embodiments of the present specification.

[0118] The memory 1020 can be implemented by a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, etc. The memory 1020 can store an operating system and other application programs, and when the technical solutions provided by the embodiments of the present specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and called and executed by the processor 1010.

[0119] The input / output interface 1030 is configured to connect input / output modules to realize information input and output. The input / output modules can be configured as components in the device (not shown in the figure) or externally connected to the device to provide corresponding functions. The input devices can include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output devices can include a display, a speaker, a vibrator, an indicator light, etc.

[0120] The communication interface 1040 is configured to connect a communication module (not shown in the figure) to realize the communication interaction between the device and other devices. The communication module can realize communication by wired means such as USB (Universal Serial Bus), network cable, etc., or by wireless means such as mobile network, WIFI (Wireless Fidelity), Bluetooth, etc.

[0121] The bus 1050 includes a path for transmitting information between various components (such as the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040) of the device.

[0122] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040, and the bus 1050, in the specific implementation process, the device can also include other components necessary for normal operation. In addition, those skilled in the art can understand that the above device can also only include the components necessary to implement the solutions of the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0123] The electronic device of the above embodiment is used to implement the corresponding trailer mode control method in any of the preceding embodiments, and has the beneficial effects of the corresponding method embodiments, which are not repeated here.

[0124] Based on the same technical concept, corresponding to the method of any of the above embodiments, the application also provides a vehicle comprising the electronic device according to any of the above embodiments.

[0125] Based on the same technical concept, corresponding to the method of any of the above embodiments, the application also provides a computer-readable storage medium storing computer instructions for causing a computer to execute the trailer mode control method according to any of the above embodiments.

[0126] The computer-readable medium of the embodiment includes permanent and non-permanent, removable and non-removable media, which can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible by a computing device.

[0127] The storage medium of the above embodiment stores computer instructions for causing a computer to execute the trailer mode control method according to any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which are not repeated here.

[0128] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the application (including claims) is limited to these examples; under the idea of the application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the embodiments of the application as described above. In order to be brief, they are not provided in detail.

[0129] Additionally, to simplify the description and discussion, and so as not to obscure the embodiments of the application being presented, the well-known functions or constructions of integrated circuit (IC) chips and other components can or can not be shown in the figures and will be omitted as not to unnecessarily obscure the embodiments of the application being presented. Moreover, the devices can be shown in block diagram form in order to avoid obscuring the embodiments of the application, and this also acknowledges the fact that the details in regard to the implementation of the block diagram devices are highly dependent on the platform within which the embodiments of the application are to be implemented (i.e., these details should be well within the purview of one of ordinary skill in the art). Where specific details are set forth in order to describe an illustrative embodiment of the application, it will be apparent to one of ordinary skill in the art that the embodiments of the application can be practiced without, or with variation of, these specific details. Thus, the description is to be considered as illustrative only and not restrictive in nature.

[0130] While the application has been described in connection with specific embodiments thereof, it will be understood that many modifications, substitutions and changes will be apparent to those of ordinary skill in the art. For example, other memory architectures (e.g., dynamic RAM (DRAM)) can use the embodiments discussed.

[0131] It is intended to cover all alternatives, modifications and variations of this application falling within the scope of the appended claims. Accordingly, all such changes are intended to be included within the scope of the application as set forth in the claims.

Claims

1. A method of controlling a trailer mode, characterized by, The method comprises: in response to entering the trailer mode, acquiring an engine water temperature, a current state of charge of a power battery, and driving state data; in response to the current state of charge being less than a target state of charge and the engine water temperature being less than or equal to a limit threshold, determining a driving torque according to the driving state data, and controlling the engine to output the driving torque to provide driving force for the vehicle; determining a first power generation torque according to the driving state data, and controlling the engine to output the first power generation torque to charge the power battery and provide power for on-board electrical equipment; in response to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold, determining a driving torque according to the driving state data, and controlling the engine to output the driving torque to provide driving force for the vehicle; determining a second power generation torque according to the driving state data, and controlling the engine to output the second power generation torque to provide power for on-board electrical equipment; wherein the target state of charge is a maximum state of charge at which the engine triggers to charge the power battery.

2. The method of claim 1, wherein, The method further comprises: determining a first torque corresponding to the on-board electrical equipment and a second torque corresponding to the power battery according to the driving state data; in response to the engine water temperature being less than or equal to a first threshold, determining the first power generation torque as a sum of the first torque and the second torque; in response to the engine water temperature being greater than the first threshold, determining the first power generation torque according to a first limit power corresponding to auxiliary electrical equipment, the first torque, a preset limit ratio, and the second torque; wherein the first threshold is less than the limit threshold, and the on-board electrical equipment comprises basic electrical equipment related to vehicle driving and auxiliary electrical equipment related to driving comfort.

3. The method of claim 2, wherein, The method further comprises: reducing the first torque according to the first limit power corresponding to auxiliary electrical equipment to obtain a reduced first torque; reducing the second torque according to the preset limit ratio to obtain a reduced second torque; determining the first power generation torque as a sum of the reduced first torque and the reduced second torque.

4. The method of claim 2, wherein, The driving state data comprises a consumption power of the on-board electrical equipment, an accelerator pedal opening degree, and an engine maximum torque. The method further comprises: determining the first torque corresponding to the on-board electrical equipment according to the consumption power of the on-board electrical equipment; determining a third torque according to the current state of charge and the target state of charge; determining a fourth torque according to the accelerator pedal opening degree, the engine maximum torque, and the first torque; determining the second torque corresponding to the power battery as a minimum value of the third torque and the fourth torque.

5. The method of claim 1, wherein, The driving state data includes a use power of a basic electrical equipment related to vehicle driving and a use power of an auxiliary electrical equipment related to driving comfort in the vehicle electrical equipment; The vehicle electrical equipment includes the basic electrical equipment and the auxiliary electrical equipment; The second generation torque is determined according to the driving state data, including: In response to the engine water temperature being less than or equal to a second threshold value, the use power of the auxiliary electrical equipment is reduced to a second limit power, and the second generation torque is determined according to a sum of the use power of the basic electrical equipment and the second limit power; In response to the engine water temperature being greater than the second threshold value, the second generation torque is determined according to the use power of the basic electrical equipment; The second threshold value is greater than the limit threshold value.

6. The method of claim 1, wherein, Before the engine water temperature, the current state of charge of the power battery and the driving state data are acquired, further comprising: Acquiring a driving path parameter and a vehicle motion parameter; The corrected state of charge is determined according to the driving path parameter and the vehicle motion parameter; The sum of the corrected state of charge and the target state of charge is taken as the target state of charge after the first correction operation.

7. The method of claim 6, wherein, The driving path parameter and the vehicle motion parameter are acquired, including: The driving destination of the vehicle is acquired according to a navigation map operated by a user; The navigation path is obtained by path planning on the navigation map according to the current vehicle position and the driving destination of the vehicle, and the driving path parameter is determined according to the navigation path; The driving habit of the user is analyzed to determine the vehicle motion parameter.

8. The method of claim 6, wherein, After the sum of the corrected state of charge and the target state of charge is taken as the target state of charge after the first correction operation, further comprising: The type of the power battery and the type of the motor are determined, and the calibration state of charge is determined according to the type of the power battery and the type of the motor; The maximum value of the calibration state of charge and the target state of charge after the first correction operation is taken as the target state of charge after the second correction operation.

9. The method of claim 1, wherein, Further comprising: The engine cooling system is controlled to cool the engine according to the maximum cooling duty cycle; In response to exiting the trailer mode, the working duty cycle is determined according to the engine water temperature, and the engine cooling system is controlled to cool the engine according to the working duty cycle.

10. The method of claim 1, wherein, Further comprising: In response to the current state of charge being greater than or equal to the target state of charge, the driving torque is determined according to the driving state data, the engine is controlled to output the driving torque to provide driving force for the vehicle; The third generation torque is determined according to the driving state data, and the power battery is controlled to provide electrical energy for the vehicle electrical equipment.

11. The method of claim 10, wherein, The driving torque is determined according to the driving state data, and the engine is controlled to output the driving torque to provide driving force for the vehicle, including: In response to the accelerator pedal opening in the driving state data being greater than a preset pedal opening, the driving torque is determined according to the accelerator pedal opening, and the engine and the power battery are controlled to output the driving torque to provide driving force for the vehicle.

12. The method of claim 1, wherein, After the trailer mode is entered, further comprising: The vehicle is controlled to exit the pure electric mode.

13. A trailer mode control device characterized by comprising: Including: A processor, the processor being configured to execute the following program modules stored in the memory: A data acquisition module configured to acquire engine water temperature, current state of charge of the power battery and driving state data in response to entering the towed mode; A first control module configured to determine a driving torque according to the driving state data and control the engine to output the driving torque to provide driving force for the vehicle in response to the current state of charge being less than a target state of charge and the engine water temperature being less than or equal to a limit threshold; determine a first power generation torque according to the driving state data and control the engine to output the first power generation torque to charge the power battery and provide electric energy for the on-board electrical equipment; A second control module configured to determine a driving torque according to the driving state data and control the engine to output the driving torque to provide driving force for the vehicle in response to the current state of charge being less than the target state of charge and the engine water temperature being greater than the limit threshold; determine a second power generation torque according to the driving state data and control the engine to output the second power generation torque to provide electric energy for the on-board electrical equipment; wherein the target state of charge is a maximum state of charge triggering the engine to charge the power battery.

14. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor implements the towed mode control method according to any one of claims 1 to 12 when executing the program.

15. A vehicle characterized by comprising: The vehicle comprises the electronic device according to claim 14.

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