Vehicle control method, device and vehicle

Abstract

The present application provides a vehicle control method, device and vehicle, which relates to the field of vehicle technology. The scheme includes: when the vehicle turns on the parking charging function, obtaining the current temperature of the target position; wherein the current temperature is used to indicate the temperature of the target position when the parking charging function is running; the target position is used to indicate the position in the low-temperature circuit of the vehicle; according to the current temperature of the target position, obtaining the target parameters of the engine; according to the target parameters, controlling the engine to perform the parking charging function. The scheme can reduce the damage to the components in the low-temperature circuit during the parking charging process, so as to improve the performance and safety of the whole vehicle.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more specifically, to a vehicle control method, device and vehicle in the field of vehicle technology. Background Art

[0002] Parking charging means that when a hybrid vehicle is parked, the engine is used to convert fuel into electrical energy to charge the battery in the vehicle.

[0003] At present, during the process of parking charging, due to the high load operation of the engine, a large amount of heat will be dissipated, which will cause the temperature of components in the low-temperature circuit to be too high, and even cause damage to these components, thereby reducing the performance and safety of the entire vehicle.

[0004] Therefore, during the process of parking charging, how to reduce the damage to the components in the low-temperature circuit to improve the performance and safety of the entire vehicle is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present application provides a vehicle control method, device and vehicle, which can reduce damage to components in a low-temperature circuit during parking charging to improve the performance and safety of the entire vehicle.

[0006] In a first aspect, a vehicle control method is provided, the method comprising: when a parking charging function is turned on in a vehicle, obtaining a current temperature of a target position; wherein the current temperature is used to represent the temperature of the target position when the parking charging function is running; the target position is used to represent the position in a low-temperature circuit in the vehicle; according to the current temperature of the target position, obtaining a target parameter of the engine; according to the target parameter, controlling the engine to perform the parking charging function.

[0007] An embodiment of the present application provides a vehicle control method, which obtains the current temperature of a target position when the parking charging function of the vehicle is turned on; since the current temperature is used to represent the temperature of the target position when the parking charging function is running, and the target position is used to represent the position in the low-temperature circuit of the vehicle; therefore, the target parameters of the engine can be obtained according to the current temperature of the target position; and according to the target parameters, the engine is controlled to perform the parking charging function, so that during the parking charging process, damage to components in the low-temperature circuit can be reduced to improve the performance and safety of the entire vehicle.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the method provided in the embodiment of the present application also includes: obtaining current parameters of the engine in the vehicle; obtaining target parameters of the engine based on the current temperature of the target position, including: obtaining the target parameters of the engine based on the current parameters and the current temperature.

[0009] In an embodiment of the present application, the target parameters of the engine are determined based on the current parameters and the current temperature. By optimizing the current parameters, damage to components in the low-temperature circuit can be reduced during parking charging, thereby improving the performance and safety of the entire vehicle.

[0010] In combination with the first aspect and the above-mentioned implementation methods, in certain implementation methods of the first aspect, target parameters of the engine are obtained based on current parameters and current temperature, including: determining a target restriction level corresponding to the current temperature based on the current temperature; wherein the target restriction level is used to indicate the restriction intensity on the current parameters at the current temperature; and obtaining the target parameters based on the target restriction level and the current parameters.

[0011] In an embodiment of the present application, a target restriction level corresponding to the current temperature is determined according to the current temperature; and a target parameter is obtained according to the target restriction level and the current parameter. In this way, by limiting the current parameter to obtain the target parameter, damage to components in the low-temperature circuit can be reduced during parking charging, thereby improving the performance and safety of the entire vehicle.

[0012] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the target parameters are obtained according to the target restriction level and the current parameters, including: if the target restriction level is the first restriction level, the target coefficient corresponding to the first restriction level is obtained; the target parameters are obtained according to the target coefficient and the current parameters; if the target restriction level is the second restriction level, the target parameters are obtained according to the charging gear corresponding to the current parameters; if the target restriction level is the third restriction level, the preset parameters are used as the target parameters; wherein the restriction strength of the first restriction level is less than the restriction strength of the second restriction level; the restriction strength of the second restriction level is less than the restriction strength of the third restriction level.

[0013] In the embodiments of the present application, different restriction levels can be used to restrict the current parameters in different ways to obtain the target parameters, thereby improving the accuracy of determining the target parameters, so as to reduce damage to components in the low-temperature circuit during parking charging, thereby improving the performance and safety of the entire vehicle.

[0014] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the target parameter is obtained according to the charging gear corresponding to the current parameter, including: if the charging gear corresponding to the current parameter is the first preset charging gear, the charging parameter corresponding to the target charging gear is determined as the target parameter; wherein the target charging gear is used to represent a charging gear that is a preset number of gears lower than the first preset charging gear; if the charging gear corresponding to the current parameter is the second preset charging gear, the preset parameter is determined as the target parameter; wherein the second preset charging gear is lower than the first preset charging gear.

[0015] In an embodiment of the present application, the target charging gear is obtained according to different conditions of the charging gear corresponding to the current parameters, and the target parameters can be quickly determined to reduce damage to components in the low-temperature circuit during parking charging, thereby improving the performance and safety of the entire vehicle.

[0016] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, if the target restriction level is the second restriction level; according to the target parameters, the engine is controlled to perform the parking charging function, including: according to the target parameters, the engine is controlled to perform the parking charging function for a time period greater than the preset time period.

[0017] In an embodiment of the present application, by switching from the current parameters to the target parameters and controlling the engine to perform the parking charging function according to the target parameters, the target components in the target position can adapt to the process of controlling the engine to perform the parking charging function with the target parameters; thereby improving the charging efficiency without affecting the user experience.

[0018] In combination with the first aspect and the above-mentioned implementation methods, in certain implementation methods of the first aspect, the method provided in the embodiment of the present application also includes: determining a target power value corresponding to the current charging gear according to the current charging gear corresponding to the current parameters; wherein the target power value is used to indicate the maximum power of the refrigeration equipment; and controlling the refrigeration equipment according to the target power value.

[0019] In an embodiment of the present application, a target power value may be corresponding to the current charging gear; and according to the target power value, the refrigeration equipment may be controlled, thereby reducing the occurrence of suction interruptions in the refrigeration equipment and improving the user experience.

[0020] In combination with the first aspect and the above-mentioned implementation methods, in certain implementation methods of the first aspect, the method provided in the embodiment of the present application also includes: when the engine performs the parking charging function, outputting the target charging gear corresponding to the target parameter.

[0021] In the embodiment of the present application, by outputting the target charging gear corresponding to the target parameter, the current charging status of the parking charge can be fed back to the user in a timely manner to improve the user's experience.

[0022] In a second aspect, a vehicle control device is provided, the device comprising:

[0023] An acquisition module, used to acquire the current temperature of the target position when the parking charging function is turned on in the vehicle; wherein the current temperature is used to indicate the temperature of the target position when the parking charging function is running; and the target position is used to indicate the position in the low temperature circuit in the vehicle;

[0024] The acquisition module is also used to obtain the target parameters of the engine according to the current temperature of the target position;

[0025] The control module is used to control the engine to perform the parking charging function according to the target parameters.

[0026] In a possible implementation, the acquisition module is also used to acquire current parameters of an engine in the vehicle; and determine target parameters of the engine according to the current parameters and the current temperature.

[0027] In a possible implementation, the acquisition module is also used to determine a target restriction level corresponding to the current temperature based on the current temperature; wherein the target restriction level is used to indicate the restriction intensity of the current parameter at the current temperature; and the target parameter is obtained based on the target restriction level and the current parameter.

[0028] In a possible implementation, the acquisition module is specifically used to determine the target coefficient corresponding to the first restriction level if the target restriction level is the first restriction level; obtain the target parameter according to the target coefficient and the current parameter; if the target restriction level is the second restriction level, obtain the target parameter according to the charging gear corresponding to the current parameter; if the target restriction level is the third restriction level, use the preset parameter as the target parameter; wherein the restriction strength of the first restriction level is less than the restriction strength of the second restriction level; and the restriction strength of the second restriction level is less than the restriction strength of the third restriction level.

[0029] In one possible implementation, the acquisition module is specifically used to determine the charging parameter corresponding to the target charging gear as the target parameter if the charging gear corresponding to the current parameter is the first preset charging gear; wherein the target charging gear is used to indicate a charging gear that is a preset number of gears lower than the first preset charging gear; if the charging gear corresponding to the current parameter is the second preset charging gear, determine the preset parameter as the target parameter; wherein the second preset charging gear is lower than the first preset charging gear.

[0030] In a possible implementation, if the target restriction level is the second restriction level, the control module is specifically configured to control the engine to perform the parking charging function for a time period greater than a preset time period according to the target parameter.

[0031] In one possible implementation, the vehicle control device also includes: a determination module, used to determine a target power value corresponding to the current charging gear according to the current charging gear corresponding to the current parameters; wherein the target power value is used to indicate the maximum power of the refrigeration equipment; and the refrigeration equipment is controlled according to the target power value.

[0032] In a possible implementation, the vehicle control device further includes: an output module, configured to output a target charging gear corresponding to the target parameter when the engine performs the parking charging function.

[0033] In a third aspect, a vehicle is provided, comprising a memory and a processor. The memory is used to store executable program code, and the processor is used to call and run the executable program code from the memory, so that the vehicle executes the method in the first aspect or any possible implementation of the first aspect.

[0034] In a fourth aspect, a computer program product is provided, comprising: a computer program code, which, when executed on a computer, enables the computer to execute the method in the first aspect or any possible implementation of the first aspect.

[0035] In a fifth aspect, a computer-readable storage medium is provided, which stores a computer program code. When the computer program code runs on a computer, the computer executes the method in the above-mentioned first aspect or any possible implementation manner of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic flow chart of a vehicle control method provided in an embodiment of the present application;

[0037] Figure 2 is a scene schematic diagram of a central control display screen provided in an embodiment of the present application;

[0038] Figure 3 is a schematic flow chart of another vehicle control method provided in an embodiment of the present application;

[0039] Figure 4 is a structural schematic diagram of a vehicle control device provided in an embodiment of the present application;

[0040] Figure 5 It is a structural schematic diagram of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings to clearly and thoroughly describe the technical solutions in this application. In the description of the embodiments of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more than two.

[0042] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0043] Before introducing the embodiments of the present application, the relevant terms involved in the present application are first explained as follows:

[0044] (1) Parking charging: also known as on-site charging; refers to a function in which a hybrid electric vehicle converts fuel in the vehicle into electrical energy while it is stationary, thereby charging the vehicle's battery. This process does not require the vehicle to move, and only requires the engine to be running to achieve electrical energy replenishment.

[0045] (2) Low temperature circuit: refers to an important component of the thermal management system of hybrid electric vehicles. It usually refers to the coolant circulation circuit used to cool key components such as batteries, motors, and motor controllers. Since these components generate a lot of heat during operation, they need to be dissipated in time through the low temperature circuit to ensure the normal operation of the components and extend their service life.

[0046] (3) Air conditioning circuit: refers to a closed circuit in the air conditioning system, which is used to circulate the refrigerant to complete the cooling or heating process. It consists of main components such as the compressor, condenser, expansion valve (or throttling device) and evaporator, as well as auxiliary components such as copper pipes, connecting pipes, wires and control elements. These components work closely together to form a complete loop, and the cooling or heating effect of the air conditioning system is achieved through the evaporation and condensation of the refrigerant.

[0047] (4) P2 motor: It is an important motor structure in hybrid electric vehicles and is located between the engine and the gearbox. The P2 motor is arranged between the engine, clutch and gearbox. Through the separation and engagement of the clutch, it can adapt to different functional requirements such as driving, deceleration and braking energy recovery, parking charging, and starting the engine.

[0048] (5) P4 motor: The P4 motor is an important motor architecture in hybrid electric vehicles. It has no direct connection with the engine and is usually arranged on the rear axle drive axle or as a wheel-side motor to provide rear-drive power for hybrid vehicles.

[0049] At present, the introduction of the parking charging function has improved convenience; however, it will also increase the risk of excessive idling of the vehicle's components (for example, components in the low-temperature circuit).

[0050] For example, during the parking charging process of a hybrid electric vehicle, a large amount of heat will be dissipated due to the high load operation of the engine, which will cause the temperature of components in the low-temperature circuit to be too high, and may even damage these components, thereby reducing the performance and safety of the entire vehicle.

[0051] In the related technology, it is possible to update the components related to thermal management; however, due to the high cost, it is difficult to achieve for mass-produced vehicles.

[0052] Therefore, during the process of parking charging, how to reduce the damage to the components in the low-temperature circuit to improve the performance and safety of the entire vehicle is a technical problem that needs to be solved urgently.

[0053] In view of this, the embodiments of the present application provide a vehicle control method, device and vehicle, which obtain the current temperature of a target position in the vehicle when the parking charging function of the vehicle is turned on; obtain the target parameters of the engine based on the current temperature of the target position; and control the engine to perform the parking charging function based on the target parameters. In this way, during the parking charging process, the temperature of the target position in the low-temperature circuit can be prevented from being too high, causing damage to the target position, thereby improving the performance and safety of the entire vehicle.

[0054] In order to illustrate the technical solution described in this application, the following is a description through specific embodiments. Figure 1 to Figure 2 The vehicle control method provided in the embodiment of the present application is described in detail.

[0055] It should be understood that the embodiments of the present application do not particularly limit the execution subject of the vehicle control method, as long as the program that records the code of the vehicle control method of the embodiments of the present application can be run to communicate according to the vehicle control method of the embodiments of the present application. For example, the execution subject of the vehicle control method provided in the embodiments of the present application can be a vehicle, or a vehicle control device used in a vehicle, such as a chip.

[0056] Figure 1 It is a flow chart of a vehicle control method provided in an embodiment of the present application.

[0057] For example, the vehicle in the embodiment of the present application can be described by taking a hybrid electric vehicle that supports converting fuel into electrical energy to charge a battery through the vehicle's own engine.

[0058] S101. When the parking charging function of the vehicle is turned on, obtain the current temperature of the target location.

[0059] Among them, the target position is used to indicate the position in the low-temperature circuit of the vehicle; the current temperature is used to indicate the temperature of the target position when the parking charging function is running.

[0060] Exemplarily, the number of target locations may be one or more.

[0061] Exemplarily, the target position may be a position in the low temperature circuit related to a target component in the low temperature circuit. For example, the target component may include a DC / DC converter, a P2 motor, a P2 motor controller, a P4 motor, and a P4 motor controller. Accordingly, the target position may include: the inlet coolant of the DCDC converter, the water inlet of the P2 motor, the P2 motor controller, the P2 motor, the water inlet of the P4 motor, the P4 motor controller, the P4 motor, etc.

[0062] Exemplarily, only the target position and the target component are described here by way of example. The embodiments of the present application do not impose any specific limitations on the specific position of the target position in the actual scene and the specific component of the target component in the actual scene.

[0063] For example, when the vehicle is parked and the battery needs to be replenished, the user can start the parking charging function; or, when the vehicle is parked and the battery needs to be replenished, the vehicle can automatically start the parking charging function; the embodiments of the present application do not impose specific restrictions on this.

[0064] Exemplarily, the current temperature of the target position can be obtained by a temperature sensor installed at the target position. For example, a temperature sensor is installed on the surface of the P2 motor to obtain the temperature of the P2 motor body.

[0065] For example, the current temperature of the target location may refer to the temperature when the parking charging function of the vehicle is just turned on, or it may refer to the temperature at various times when the vehicle is in the parking charging state; the embodiment of the present application does not impose specific limitations on this.

[0066] It is understandable that in order to prevent the temperature of the components in the low-temperature circuit from being too high and thus causing damage to these components, the temperature of the position related to the target component in the low-temperature circuit can be detected, thereby facilitating the understanding of the temperature of the target component. Since the target position can be a position close to the target component (for example, the water inlet of the target component) or the position of the target component itself; in this way, the temperature of the target component in the low-temperature circuit can be understood directly or indirectly.

[0067] S102. Obtain target parameters of the engine according to the current temperature of the target position.

[0068] Exemplarily, the target parameter can be used to represent the charging parameter when charging the battery in the vehicle. Through the target parameter, the engine can be controlled to perform the parking charging function, thereby charging the battery in the vehicle.

[0069] Exemplarily, the target parameters may include: target charging power, target charging speed, etc.; for example, the target charging power may be 16 kilowatts (kW); the target charging speed may be 2500 revolutions per minute (r / min).

[0070] As an example, the restriction level for limiting the current parameters of the engine can be determined according to the current temperature of the target position; and according to the restriction level, the current parameters are adjusted to a certain extent to obtain the target parameters of the engine. For example, when the current parameter of the engine is x1; and when the current temperature of the target position 1 is temperature a1, the current temperature of the target position 2 is temperature a2, and the current temperature of the target position 3 is temperature a3, the restriction level corresponding to temperature b1, temperature b2, and temperature b3 is determined; and according to the restriction level, the current parameter x1 of the engine is restricted to obtain the target parameter x2 of the engine.

[0071] Optionally, the current parameter can be adjusted according to the current temperature of the target position to obtain the target parameter. For example, when the current parameter of the engine is x1, and the current temperature of the target position 1 is temperature b1, the current temperature of the target position 2 is temperature b2, and the current temperature of the target position 3 is temperature b3, the adjustment method can be determined (for example, increasing the current parameter or decreasing the current parameter); then, according to the adjustment method, the current parameter x1 of the engine is restricted to obtain the target parameter x2 of the engine. Among them, the target parameter x2 can be higher than the current parameter x1 or lower than the current parameter x1; it can be determined specifically according to the temperature change of the target position.

[0072] Optionally, the target parameter corresponding to the current temperature may be directly determined according to the current temperature of the target position. For example, when the current temperature of target position 1 is temperature b1, the current temperature of target position 2 is temperature b2, and the current temperature of target position 3 is temperature b3, the target parameter x2 corresponding to temperature b1, temperature b2, and temperature b3 may be determined.

[0073] For a detailed description of S102, please refer to the following embodiments, which will not be described in detail here.

[0074] S103. According to the target parameters, control the engine to perform the parking charging function.

[0075] It can be understood that since the target position is a position related to the target component in the low-temperature circuit, the target parameters of the engine are obtained according to the current temperature of the target position; and then the parking charging function is performed according to the target parameters, thereby avoiding the components in the low-temperature circuit from being too high.

[0076] An embodiment of the present application provides a vehicle control method, which obtains the current temperature of a target position when the parking charging function of the vehicle is turned on; since the current temperature is used to represent the temperature of the target position when the parking charging function is running, and the target position is used to represent the components in the low-temperature circuit of the vehicle; therefore, the target parameters of the engine can be obtained according to the current temperature of the target position; and according to the target parameters, the engine is controlled to perform the parking charging function, so that the damage to the components in the low-temperature circuit can be reduced during the parking charging process, so as to improve the performance and safety of the entire vehicle.

[0077] In a possible embodiment of the present application, the method provided in the present application further includes: acquiring current parameters of an engine in a vehicle; the above S102 includes: determining target parameters of the engine according to the current parameters and the current temperature.

[0078] Exemplarily, the current parameters of the engine can be used to represent charging parameters (eg, initial parameters) when charging the battery in the vehicle. The current parameters can be used to control the engine to perform the parking charging function, thereby charging the battery in the vehicle.

[0079] Exemplarily, the current parameters may include: current charging power, current charging speed, etc. For example, the current charging power may be 12 kilowatts (kW); the current charging speed may be 2000 revolutions per minute (r / min).

[0080] It is understandable that when the engine is controlled to perform the parking charging function according to the current parameters, the temperature of the target component in the low-temperature circuit may be too high; in this case, the current parameters should be adjusted.

[0081] Exemplarily, the current parameters of the engine may be parameters input by a user on the vehicle; the current parameters of the engine may also be parameters pre-configured for the vehicle; of course, the current parameters of the engine may also be parameters determined based on the temperature of the target position previously acquired.

[0082] Regarding how to determine the target parameters of the engine according to the current parameters and the current temperature, reference may be made to the following embodiments, which will not be described in detail here.

[0083] In an embodiment of the present application, the target parameters of the engine are determined based on the current parameters and the current temperature. By optimizing the current parameters, damage to components in the low-temperature circuit can be reduced during parking charging, thereby improving the performance and safety of the entire vehicle.

[0084] In a possible embodiment of the present application, target parameters of the engine are determined according to current parameters and current temperature, including: determining a target limit level corresponding to the current temperature according to the current temperature; and obtaining target parameters according to the target limit level and current parameters.

[0085] The target limit level is used to indicate the limit intensity of the current parameter at the current temperature.

[0086] Exemplarily, different temperatures of the target location may correspond to different restriction levels. Different restriction levels have different restriction strengths for the current parameters. For example, the higher the current temperature of the target location, the higher the target restriction level corresponding to the current temperature, and the higher the restriction strength for the current parameter; the lower the current temperature of the target location, the lower the target restriction level corresponding to the current temperature, and the lower the restriction strength for the current parameter.

[0087] For an exemplary description of the restriction level, please refer to the following embodiments, which will not be described in detail here.

[0088] For example, as shown in Table 1, Table 1 is a table of correspondence between the current temperature of a target position and the restriction level provided in an embodiment of the present application. Among them, the target position may include: the inlet coolant of the DCDC converter, the water inlet of the P2 motor, the P2 motor controller, the P2 motor, the water inlet of the P4 motor, the P4 motor controller, and the P4 motor. Correspondingly, the current temperature of the target position may include: the temperature of the inlet coolant of the DCDC converter, the water inlet temperature of the P2 motor, the temperature of the P2 motor controller, the temperature of the P2 motor body (for example, the surface temperature or the internal temperature), the water inlet temperature of the P4 motor, the temperature of the P4 motor controller, and the temperature of the P4 motor body (for example, the surface temperature or the internal temperature). The restriction strength of restriction level 1 is less than the restriction strength of restriction level 2; the restriction strength of restriction level 2 is less than the restriction strength of restriction level 3. Of course, Table 1 below only provides an exemplary description of the correspondence between the current temperature of the target position and the restriction level, which can be determined by the actual scenario.

[0089] Table 1 Correspondence between the current temperature of the target location and the restriction level

[0090]

[0091] For example: when any one or more of the temperature at the DCDC inlet coolant, the P2 motor water inlet temperature, the P2 motor controller temperature, the P2 motor body temperature, the P4 motor water inlet temperature, the P4 motor controller temperature, and the P4 motor body temperature reaches the temperature range corresponding to limit level 1, and the temperature does not reach the temperature corresponding to limit level 2, the target limit level is limit level 1. For example, when the temperature at the DCDC inlet coolant is 63°C; the P2 motor water inlet temperature is 68°C; the P2 motor body temperature is 95°C; the P2 motor body temperature is 155°C; the P4 motor water inlet temperature is 80°C (outside the temperature range corresponding to limit level 1 and less than 85°C); and the P4 motor body temperature is 150°C, the target limit level is limit level 1.

[0092] For another example, when any one or more of the temperature at the DCDC inlet coolant, the P2 motor water inlet temperature, the P2 motor controller temperature, the P2 motor body temperature, the P4 motor water inlet temperature, the P4 motor controller temperature, and the P4 motor body temperature reaches the temperature range corresponding to the limit level 2, and the temperature does not reach the temperature corresponding to the limit level 3, the target limit level is limit level 2. For example, when the temperature at the DCDC inlet coolant is 65°C; the P2 motor water inlet temperature is 72°C; the P2 motor body temperature is 98°C; the P2 motor body temperature is 155°C (outside the temperature range corresponding to limit level 2 and within the limit range corresponding to limit level 1); the P4 motor water inlet temperature is 100°C; and the P4 motor body temperature is 160°C, the target limit level is limit level 2.

[0093] For another example, when any one or more of the temperature at the DCDC inlet coolant, the P2 motor water inlet temperature, the P2 motor controller temperature, the P2 motor body temperature, the P4 motor water inlet temperature, the P4 motor controller temperature, and the P4 motor body temperature reaches the temperature range corresponding to the limit level 3, the target limit level is limit level 3. For example, when the temperature at the DCDC inlet coolant is 75°C; the P2 motor water inlet temperature is 78°C; the P2 motor body temperature is 98°C (outside the temperature range corresponding to limit level 3 and within the limit range corresponding to limit level 2); the P2 motor body temperature is 155°C (outside the temperature range corresponding to limit level 2 and within the limit range corresponding to limit level 1); the P4 motor water inlet temperature is 120°C; and the P4 motor body temperature is 170°C, the target limit level is limit level 3.

[0094] For a detailed description of how to obtain the target parameters according to the target restriction level and the current parameters, reference may be made to the following embodiments, which will not be described in detail here.

[0095] In an embodiment of the present application, a target restriction level corresponding to the current temperature is determined according to the current temperature; and a target parameter is obtained according to the target restriction level and the current parameter. In this way, by limiting the current parameter to obtain the target parameter, damage to components in the low-temperature circuit can be reduced during parking charging, thereby improving the performance and safety of the entire vehicle.

[0096] In a possible embodiment of the present application, the target parameters are obtained according to the target restriction level and the current parameters, including the following three cases:

[0097] Case 1: If the target restriction level is the first restriction level, determine the target coefficient corresponding to the first restriction level; and obtain the target parameter according to the target coefficient and the current parameter.

[0098] For example, the target coefficient may be a coefficient pre-configured by the vehicle, or a coefficient set manually, and the present application embodiment does not impose any specific restrictions on this. For example, the target coefficient may be 0.9.

[0099] Exemplarily, when the current parameters include the current charging power and the current charging speed, the current charging power may be multiplied by the target coefficient to obtain the target charging power; and the current charging speed may be multiplied by the target coefficient to obtain the target charging speed.

[0100] Case 2: If the target restriction level is the second restriction level, the target parameters are obtained according to the charging gear corresponding to the current parameters.

[0101] Exemplarily, the charging gear (also referred to as the in-situ charging level) may include a plurality of charging gears; different charging gears correspond to different charging parameters.

[0102] For example, as shown in Table 2, Table 2 is a table of correspondence between a charging gear and a charging parameter provided in an embodiment of the present application. Among them, the charging parameters include charging power and charging speed. Of course, the following Table 2 only provides an exemplary description of the correspondence between the charging gear and the charging parameter, which can be determined by the actual scenario.

[0103] Table 2 Correspondence between charging gear and charging parameters

[0104]

[0105] For example: when the charging gear is the high charging gear, the charging power in the charging parameters is 16kW and the charging speed is 2500r / min; when the charging gear is the middle charging gear, the charging power in the charging parameters is 12kW and the charging speed is 2000r / min; when the charging gear is the low charging gear, the charging power in the charging parameters is 8kW and the charging speed is 1500r / min.

[0106] Case 3: If the target restriction level is the third restriction level, the preset parameters are used as the target parameters.

[0107] Exemplarily, the preset parameters may be coefficients pre-configured by the vehicle or coefficients set manually, and the present application embodiment does not impose specific restrictions on this. For example, the preset parameters include preset charging power and preset charging speed; the preset charging power and preset charging speed may be 0; of course, when the preset charging power and preset charging speed may be 0, it may be indicated that the vehicle turns off the parking charging function.

[0108] Among them, the restriction strength of the first restriction level is less than that of the second restriction level; and the restriction strength of the second restriction level is less than that of the third restriction level.

[0109] For example, referring to Table 1 above, the first restriction level may be restriction level 1; the second restriction level may be restriction level 2; and the third restriction level may be restriction level 3. Accordingly, when the target restriction level is the first restriction level, the current temperature 1 is less than the current temperature 2 when the target restriction level is the second restriction level; and when the target restriction level is the second restriction level, the current temperature 2 is less than the current temperature 3 when the target restriction level is the third restriction level.

[0110] For situation 1: For example, when the current temperature at the target location is relatively low, but the current parameters need to be restricted, the target restriction level is the first restriction level; the first restriction level can be a slight reduction in the current parameters (multiplied by the target coefficient), so that the user is unaware of the changes in the current parameters.

[0111] For example: the temperature of the coolant at the DCDC inlet is 63°C; the water inlet temperature of the P2 motor is 68°C; the temperature of the P2 motor body is 95°C; the temperature of the P2 motor body is 155°C; the water inlet temperature of the P4 motor is 80°C (outside the temperature range corresponding to restriction level 1 and less than 85°C); when the temperature of the P4 motor body is 150°C, the target restriction level is determined to be restriction level 1; the current charging power in the current parameters is 12kW, the charging speed is 2000r / min, and the target coefficient is 0.9; the current charging power (12kW) is multiplied by the target coefficient (0.9) to obtain the target parameters, that is, the target charging power is 10.8kW and the target charging speed is 1800r / min.

[0112] For situation 2: For example, when the current temperature at the target location is relatively moderate and the current parameters need to be restricted, the target restriction level is the second restriction level; the second restriction level can be processing the charging gear corresponding to the current parameters (for example, reducing it from a high charging gear to a medium charging gear or a low charging gear); for a specific description, please refer to the following embodiments, which will not be repeated here.

[0113] For situation 3: For example, when the current temperature at the target position is relatively high and the current parameters need to be restricted, the target restriction level is the third restriction level; the third restriction level can be to directly use the preset parameters as the target parameters; for example, the temperature at the DCDC inlet coolant is 65°C; the P2 motor water inlet temperature is 72°C; the P2 motor body temperature is 98°C; the P2 motor body temperature is 155°C (outside the temperature range corresponding to restriction level 2 and within the restriction range corresponding to restriction level 1); the P4 motor water inlet temperature is 100°C; when the P4 motor body temperature is 160°C, the target restriction level is restriction level 2; the current charging power in the current parameters is 16kW and the charging speed is 2500r / min; the target charging power and target charging speed in the target parameters can be set to 0 according to the preset parameters; in other words, the vehicle's parking charging function can be turned off.

[0114] In the embodiments of the present application, different restriction levels can be used to restrict the current parameters in different ways to obtain the target parameters, thereby improving the accuracy of determining the target parameters, so as to reduce damage to components in the low-temperature circuit during parking charging, thereby improving the performance and safety of the entire vehicle.

[0115] In a possible embodiment of the present application, the target parameter is obtained according to the charging gear corresponding to the current parameter, including the following two methods:

[0116] Method 1: If the charging gear corresponding to the current parameter is the first preset charging gear, the charging parameter corresponding to the target charging gear is determined as the target parameter.

[0117] The target charging gear is used to indicate a charging gear that is lower than the first preset charging gear by a preset number of gears.

[0118] For example, the preset number of gears may be a number pre-configured by the vehicle or a number manually set, and the present application embodiment does not impose any specific restrictions on this. For example, the preset number of gears may be 1 gear or 2 gears.

[0119] For example, referring to Table 2 above, when the number of preset gears is 1, the first preset charging gear can be a high charging gear or a middle charging gear. At this time, when the charging gear corresponding to the current parameter is a high charging gear, the target charging gear is a middle charging gear; when the charging gear corresponding to the current parameter is a middle charging gear, the target charging gear is a low charging gear.

[0120] For another example, referring to the above Table 2, when the number of preset gears is 2, the first preset charging gear may be a high charging gear. At this time, when the charging gear corresponding to the current parameter is a high charging gear, the target charging gear is a low charging gear.

[0121] Method 2: If the charging gear corresponding to the current parameter is the second preset charging gear, the preset parameter is determined as the target parameter.

[0122] The second preset charging gear is lower than the first preset charging gear.

[0123] For example, referring to Table 2 above, when the number of preset gears is 1, the second preset charging gear may be a low charging gear. At this time, when the charging gear corresponding to the current parameter is a low charging gear, the charging parameter corresponding to the target charging gear may be a preset parameter.

[0124] For another example, referring to Table 2 above, when the number of preset gears is 2, the second preset charging gear may be a middle charging gear or a low charging gear. At this time, when the charging gear corresponding to the current parameter is a middle charging gear, the charging parameter corresponding to the target charging gear may be a preset parameter. When the charging gear corresponding to the current parameter is a low charging gear, the charging parameter corresponding to the target charging gear may be a preset parameter.

[0125] In an embodiment of the present application, the target charging gear is obtained according to different conditions of the charging gear corresponding to the current parameters, and the target parameters can be quickly determined to reduce damage to components in the low-temperature circuit during parking charging, thereby improving the performance and safety of the entire vehicle.

[0126] In a possible embodiment of the present application, if the target restriction level is the second restriction level; according to the target parameters, controlling the engine to perform the parking charging function includes: according to the target parameters, controlling the engine to perform the parking charging function for a duration greater than a preset duration.

[0127] For example, the preset duration may be a duration preconfigured by the vehicle, or may be a duration manually set, and the present application embodiment does not impose any specific limitation on this. For example, the preset duration may be 20 minutes.

[0128] For example, when the vehicle uses the charging gear corresponding to the current parameters as the high charging gear, and controls the engine to perform the parking charging function; it detects that the target restriction level is the second restriction level, and determines that the charging gear corresponding to the target parameters is the middle charging gear; then, according to the middle charging gear, the engine is controlled to perform the parking charging function for more than 20 minutes.

[0129] In an embodiment of the present application, by switching from the current parameters to the target parameters and controlling the engine to perform the parking charging function according to the target parameters, the target components in the target position can adapt to the process of controlling the engine to perform the parking charging function with the target parameters; thereby improving the charging efficiency without affecting the user experience.

[0130] In a possible embodiment of the present application, the method provided in the present application also includes: determining a target power value corresponding to the current charging gear according to the current charging gear corresponding to the current parameters; and controlling the refrigeration equipment according to the target power value.

[0131] The target power value is used to indicate the maximum power of the refrigeration equipment.

[0132] Exemplarily, the refrigeration device may be an air conditioner in a vehicle, for lowering the temperature in the vehicle cabin.

[0133] It should be understood that when a hybrid electric vehicle performs the parking charging function, a large amount of heat will be generated due to the operation of the engine and power generation system. If the condenser in the air conditioning circuit cannot achieve an effective cooling effect at this time, the working pressure of the compressor will increase. When the working pressure of the compressor exceeds its bearing capacity, there will be a risk of the refrigeration equipment being cut off, that is, the compressor cannot work normally, resulting in the loss of the refrigeration effect of the refrigeration equipment; thereby reducing the user experience and causing user complaints.

[0134] It should also be understood that the maximum power of the refrigeration equipment in the vehicle can be limited when the parking charging function is activated, rather than when the engine and power generation system generate a lot of heat. This can prevent in advance the problem of increased compressor pressure and reduced cooling effect of the refrigeration equipment due to excessive temperature in the air-conditioning circuit.

[0135] Exemplarily, the target power value of the refrigeration equipment may be related to the current charging gear. For example, as shown in Table 3, Table 3 is a corresponding relationship table between a charging gear and a target power value provided in an embodiment of the present application. For the specific description of each charging gear in Table 3, please refer to the above and Table 3.

[0136] Of course, the following Table 3 only provides an exemplary description of the corresponding relationship between the charging gear and the target power value, which can be determined by the actual scenario.

[0137] Table 3 Correspondence between charging gear and target power value

[0138]

[0139] For example: when the current charging gear is high charging gear, the target power value is 4kW; when the current charging gear is medium charging gear, the target power value is 5kW; based on 5kW, the refrigeration equipment is controlled to operate. When the current charging gear is low charging gear, the target power value is 6kW; based on 6kW, the refrigeration equipment is controlled to operate.

[0140] As a possible implementation manner, the method provided in the present application also includes: determining a first power value corresponding to the target charging gear according to the target charging gear corresponding to the target parameter; and controlling the refrigeration equipment according to the first power value.

[0141] The first power value is used to indicate the maximum power of the refrigeration equipment.

[0142] For example: when the current charging gear is the high charging gear, the target power value is 4kW; when the target charging gear is determined to be the middle charging gear, the first power value is determined to be 5kw; then, the refrigeration equipment is controlled to operate according to 5kW.

[0143] In the embodiments of the present application, a target power value may be corresponding to the current charging gear; and according to the target power value, the operation of the refrigeration equipment may be controlled, thereby reducing the occurrence of suction interruptions in the refrigeration equipment and improving the user experience.

[0144] In a possible embodiment of the present application, the method provided in the present application further includes: when the engine performs the parking charging function, outputting a target charging gear corresponding to the target parameter.

[0145] As an example, when the engine performs the parking charging function, the target charging gear corresponding to the target parameter can be displayed through a display device in the vehicle (for example, a meter or a central control display screen). Figure 2 As shown, when the engine is controlled to perform the parking charging function at the charging middle gear, the charging gear can be displayed on the central control display screen 210, for example, the display content is: the parking charging function is now being performed at the charging middle gear; charging power: 12kW; charging speed: 2000r / min. In this way, the current parking charging status can be provided to the user in a timely manner.

[0146] As another example, when the engine performs the parking charging function, the user can be prompted with a voice device in the vehicle to indicate the target charging gear corresponding to the current target parameter. For example, the voice output can be "the current charging gear of the parking charging function is the high charging gear."

[0147] In the embodiment of the present application, by outputting the target charging gear corresponding to the target parameter, the current charging status of the parking charge can be fed back to the user in a timely manner to improve the user's experience.

[0148] Figure 3 It is a schematic flow chart of another vehicle control method provided in an embodiment of the present application.

[0149] For example, Figure 3 The vehicle control method shown can be executed by the vehicle, and can also be executed by a vehicle control device in the vehicle, such as a chip.

[0150] like Figure 3 As shown, the vehicle control method includes S301 to S315, and S301 to S315 are described in detail below.

[0151] S301. When the parking charging function is turned on, obtain current parameters.

[0152] Exemplarily, the current parameters of the engine can be used to represent charging parameters (eg, initial parameters) when charging the battery in the vehicle. The current parameters can be used to control the engine to perform the parking charging function, thereby charging the battery in the vehicle.

[0153] Exemplarily, the current parameters may include: current charging power, current charging speed, etc. For example, the current charging power may be 12 kilowatts (kW); the current charging speed may be 2000 revolutions per minute (r / min).

[0154] For example, when the vehicle is parked and the battery needs to be replenished, the user can start the parking charging function; or, when the vehicle is parked and the battery needs to be replenished, the vehicle can automatically start the parking charging function; the embodiments of the present application do not impose specific restrictions on this.

[0155] S302. Obtain a current charging gear corresponding to the current parameters according to the current parameters.

[0156] Exemplarily, the charging gear (also referred to as the in-situ charging level) may include a plurality of charging gears; different charging gears correspond to different charging parameters.

[0157] For a detailed description of the corresponding relationship between the charging gear and the charging parameters, please refer to Table 2 and related descriptions above, which will not be repeated here.

[0158] S303. Control the engine to perform the parking charging function according to the current parameters.

[0159] S304. Determine a maximum power value corresponding to the current charging gear according to the current charging gear.

[0160] It should be understood that when a hybrid electric vehicle performs the parking charging function, a large amount of heat will be generated due to the operation of the engine and power generation system. If the condenser in the air conditioning circuit cannot achieve an effective cooling effect at this time, the working pressure of the compressor will increase. When the working pressure of the compressor exceeds its bearing capacity, there will be a risk of air conditioning suction interruption, that is, the compressor cannot work normally, resulting in the loss of the air conditioning cooling effect; thereby reducing the user experience and causing user complaints.

[0161] It should also be understood that the maximum power of the air conditioner in the vehicle can be limited when the parking charging function is activated, rather than when the engine and power generation system generate a lot of heat. This can prevent in advance the problem of increased compressor pressure and poor cooling effect of the air conditioner caused by excessive temperature in the air conditioning circuit.

[0162] For example, the maximum power value corresponding to the current charging gear can refer to Table 3 and related expressions above; the maximum power value can refer to the target power value above, which will not be repeated here.

[0163] S305. Control the operation of the air conditioner according to the maximum power value corresponding to the current charging gear.

[0164] It is understandable that the maximum power value can be matched according to the current charging gear; and the operation of the air conditioner can be controlled according to the maximum power value, thereby reducing the situation of air conditioning interruption and improving the user experience.

[0165] S306. Obtain the current temperature of the target location.

[0166] Exemplarily, the target position is used to indicate a position in a low-temperature circuit in a vehicle; and the current temperature is used to indicate a temperature of the target position when the parking charging function is running.

[0167] Exemplarily, the number of target locations may be one or more.

[0168] It is understandable that in order to prevent the temperature of the components in the low-temperature circuit from being too high and thus causing damage to these components, the temperature of the position related to the target component in the low-temperature circuit can be detected, thereby facilitating the understanding of the temperature of the target component. Since the target position can be a position close to the target component (for example, the water inlet of the target component) or the position of the target component itself; in this way, the temperature of the target component in the low-temperature circuit can be understood directly or indirectly.

[0169] S307. Determine a target limit level corresponding to the current temperature according to the current temperature.

[0170] Exemplarily, the corresponding relationship between the current temperature of the target location and the restriction level can be referred to Table 1 and related expressions above; no further details will be given here.

[0171] Exemplarily, the target limit level is used to indicate the limit intensity of the current parameter at the current temperature.

[0172] Exemplarily, different temperatures of the target location may correspond to different restriction levels. Different restriction levels have different restriction strengths for the current parameters. For example, the higher the current temperature of the target location, the higher the target restriction level corresponding to the current temperature, and the higher the restriction strength for the current parameter; the lower the current temperature of the target location, the lower the target restriction level corresponding to the current temperature, and the lower the restriction strength for the current parameter.

[0173] S308. Determine whether the target restriction level is restriction level 1; if so, execute S309; ​​if not, execute S310.

[0174] For the description of restriction level 1, please refer to the above text and will not be repeated here.

[0175] S309. Multiply the current parameter by the target coefficient to obtain the target parameter.

[0176] Exemplarily, the target parameter can be used to represent the charging parameter when charging the battery in the vehicle. Through the target parameter, the engine can be controlled to perform the parking charging function, thereby charging the battery in the vehicle.

[0177] Exemplarily, the target parameters may include: target charging power, target charging speed, etc.; for example, the target charging power may be 16 kilowatts (kW); the target charging speed may be 2500 revolutions per minute (r / min).

[0178] S310. Determine whether the target restriction level is restriction level 2; if so, execute S311; if not, execute S312.

[0179] S311. Determine whether the current gear is the lowest gear; if so, execute S312; if not, execute S313.

[0180] For example, the corresponding relationship between the charging gear and the charging parameters can be referred to Table 2 and related expressions above; they will not be repeated here.

[0181] S312. Turn off the parking charging function.

[0182] As an example, when the current gear is the lowest gear and the target restriction level is restriction level 2, the parking charging function is turned off.

[0183] As another example, when the target restriction level is restriction level 3, the parking charge function is turned off.

[0184] For the description of restriction level 3, please refer to the above text and will not be repeated here.

[0185] S313. Lower the current charging gear by one gear to obtain the target parameter corresponding to the target charging gear.

[0186] S314. Execute the parking charging function according to the target parameters.

[0187] S315. Display the target charging gear on the central control display screen.

[0188] For detailed description of S301 to S315, please refer to Figure 1 to Figure 2 The relevant descriptions will not be repeated here.

[0189] In a possible embodiment of the present application, when the vehicle turns on the parking charging function, the parking charging function can be executed according to the current parameters; since the current temperature of the target position can be monitored in real time; the current temperature is used to represent the temperature of the target position when the parking charging function is running, and the target position is used to represent the position in the low-temperature circuit of the vehicle; therefore, the restriction level corresponding to the current parameter can be determined according to the current temperature of the target position; then, according to the restriction level corresponding to the current parameter, the current parameter is restricted to obtain the target parameter; and according to the target parameter, the engine is controlled to execute the parking charging function, so that during the parking charging process, damage to components in the low-temperature circuit can be reduced to improve the performance and safety of the entire vehicle; in addition, according to the maximum power value corresponding to the current charging gear; and according to the maximum power value, the air conditioner operation is controlled, which can reduce the air conditioner from being cut off and improve the user experience; based on this, this scheme can reduce damage to components in the low-temperature circuit during the parking charging process to improve the performance and safety of the entire vehicle.

[0190] Combination of the above Figures 1 to 3 The vehicle control method provided by the embodiment of the present application is described in detail; Figure 4 and Figure 5 The device embodiments of the present application are described in detail. It should be understood that the device in the embodiments of the present application can execute the various methods of the aforementioned embodiments of the present application, that is, the specific working processes of the following various products can refer to the corresponding processes in the aforementioned method embodiments.

[0191] Combine the following Figure 4 The control device of the vehicle provided in the embodiment of the present application is described in detail.

[0192] like Figure 4 As shown, Figure 4It is a structural schematic diagram of a vehicle control device provided in an embodiment of the present application.

[0193] For example, Figure 4 As shown, the device comprises:

[0194] The acquisition module 410 is used to acquire the current temperature of the target position when the parking charging function is turned on in the vehicle; wherein the current temperature is used to indicate the temperature of the target position when the parking charging function is running; and the target position is used to indicate the position in the low temperature circuit in the vehicle;

[0195] The acquisition module 410 is also used to obtain the target parameters of the engine according to the current temperature of the target position;

[0196] The control module 420 [1] is used to control the engine to perform the parking charging function according to the target parameters.

[0197] In a possible implementation, the acquisition module 410 is further used to acquire current parameters of the engine in the vehicle; and determine target parameters of the engine according to the current parameters and the current temperature.

[0198] In a possible implementation, the acquisition module 410 is also used to determine a target restriction level corresponding to the current temperature based on the current temperature; wherein the target restriction level is used to indicate the restriction intensity of the current parameter at the current temperature; and the target parameter is obtained based on the target restriction level and the current parameter.

[0199] In one possible implementation, the acquisition module 410 is specifically used to determine the target coefficient corresponding to the first restriction level if the target restriction level is the first restriction level; obtain the target parameter according to the target coefficient and the current parameter; if the target restriction level is the second restriction level, obtain the target parameter according to the charging gear corresponding to the current parameter; if the target restriction level is the third restriction level, use the preset parameter as the target parameter; wherein the restriction strength of the first restriction level is less than the restriction strength of the second restriction level; and the restriction strength of the second restriction level is less than the restriction strength of the third restriction level.

[0200] In one possible implementation, the acquisition module 410 is specifically used to determine the charging parameter corresponding to the target charging gear as the target parameter if the charging gear corresponding to the current parameter is the first preset charging gear; wherein the target charging gear is used to represent a charging gear that is a preset number of gears lower than the first preset charging gear; if the charging gear corresponding to the current parameter is the second preset charging gear, determine the preset parameter as the target parameter; wherein the second preset charging gear is lower than the first preset charging gear.

[0201] In a possible implementation, if the target restriction level is the second restriction level, the control module 420 is specifically configured to control the engine to perform the parking charging function for a time period greater than a preset time period according to the target parameter.

[0202] In one possible implementation, the vehicle control device also includes: a determination module, used to determine a target power value corresponding to the current charging gear according to the current charging gear corresponding to the current parameters; wherein the target power value is used to indicate the maximum power of the refrigeration equipment; and the refrigeration equipment is controlled according to the target power value.

[0203] In a possible implementation, the vehicle control device further includes: an output module, configured to output a target charging gear corresponding to the target parameter when the engine performs the parking charging function.

[0204] It should be noted that, when the vehicle control device provided in the above embodiment executes the vehicle control method, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0205] In addition, the vehicle control device and the vehicle control method embodiment provided in the above embodiments belong to the same concept. Therefore, for details not disclosed in the device embodiment of this specification, please refer to the embodiment of the vehicle control method mentioned above in this specification, and no further details will be given here.

[0206] Figure 5 It is a structural schematic diagram of a vehicle provided in an embodiment of the present application.

[0207] For example, Figure 5 As shown, the vehicle 500 includes: a memory 501 and a processor 502, wherein the memory 501 stores an executable program code 5011, and the processor 502 is used to call and execute the executable program code 5011 to perform a vehicle control method.

[0208] In addition, an embodiment of the present application also protects a device, which may include a memory and a processor, wherein the memory stores an executable program code, and the processor is used to call and execute the executable program code to execute a vehicle control method provided by an embodiment of the present application.

[0209] In this embodiment, the functional modules of the device can be divided according to the above method example. For example, each functional module can be corresponded, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0210] In the case of dividing each functional module according to each function, the device may further include an acquisition module and a control module, etc. It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0211] It should be understood that the device provided in this embodiment is used to execute the above-mentioned vehicle control method, and thus can achieve the same effect as the above-mentioned implementation method.

[0212] In the case of an integrated unit, the device may include a processing module and a storage module. When the device is applied to a vehicle, the processing module may be used to control and manage the vehicle's actions; for example, the processing module may be used to obtain the current temperature of the target position when the vehicle turns on the parking charging function; the current temperature is used to indicate the temperature of the target position when the parking charging function is running; the target position is used to indicate the position in the low-temperature circuit of the vehicle; according to the current temperature of the target position, the target parameters of the engine are obtained; according to the target parameters, the engine is controlled to perform the parking charging function. The storage module may be used to support the vehicle to execute related program codes, etc.

[0213] The processing module may be a processor or a controller, which may implement or execute various exemplary logic blocks, modules and circuits shown in combination with the contents disclosed in this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module may be a memory.

[0214] In addition, the device provided in the embodiments of the present application may specifically be a chip, component or module, and the chip may include a connected processor and memory; wherein the memory is used to store instructions, and when the processor calls and executes the instructions, the chip can execute a vehicle control method provided in the above embodiments.

[0215] This embodiment also provides a computer-readable storage medium, in which a computer program code is stored. When the computer program code is run on a computer, the computer executes the above-mentioned related method steps to implement a vehicle control method provided by the above-mentioned embodiment.

[0216] This embodiment also provides a computer program product. When the computer program product is run on a computer, the computer is caused to execute the above-mentioned related steps to implement a vehicle control method provided by the above-mentioned embodiment.

[0217] Among them, the device, computer-readable storage medium, computer program product or chip provided in this embodiment is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be repeated here.

[0218] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0219] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0220] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vehicle control method, characterized in that: The method comprises: When the parking charging function is turned on in the vehicle, the current temperature of the target position and the current parameters of the engine in the vehicle are obtained; wherein the current temperature is used to indicate the temperature of the target position when the parking charging function is running; and the target position is used to indicate the position in the low-temperature circuit in the vehicle; According to the current temperature, determining a target restriction level corresponding to the current temperature; wherein the target restriction level is used to indicate the restriction intensity of the current parameter at the current temperature; the target restriction level includes a first restriction level, a second restriction level and a third restriction level; the restriction intensity of the first restriction level is less than the restriction intensity of the second restriction level; the restriction intensity of the second restriction level is less than the restriction intensity of the third restriction level; If the target restriction level is the second restriction level, obtaining the target parameter according to the charging gear corresponding to the current parameter; According to the target parameter, controlling the engine to perform the parking charging function; Wherein, obtaining the target parameter according to the charging gear corresponding to the current parameter includes: If the charging gear corresponding to the current parameter is the first preset charging gear, the charging parameter corresponding to the target charging gear is determined as the target parameter; wherein the target charging gear is used to represent a charging gear that is lower than the first preset charging gear by a preset number of gears; If the charging gear corresponding to the current parameter is a second preset charging gear, the preset parameter is determined as the target parameter; wherein the second preset charging gear is lower than the first preset charging gear.

2. The method according to claim 1, characterized in that The method further comprises: If the target restriction level is the first restriction level, determining a target coefficient corresponding to the first restriction level; and obtaining the target parameter according to the target coefficient and the current parameter; If the target restriction level is the third restriction level, the preset parameter is used as the target parameter.

3. The method according to claim 1, characterized in that If the target restriction level is the second restriction level, controlling the engine to perform the parking charging function according to the target parameter includes: According to the target parameter, the engine is controlled to perform the parking charging function for a time period greater than a preset time period.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: According to the current charging gear corresponding to the current parameter, determine the target power value corresponding to the current charging gear; wherein the target power value is used to indicate the maximum power of the refrigeration equipment; The refrigeration equipment is controlled according to the target power value.

5. The method according to any one of claims 1 to 3, characterized in that The method further comprises: When the engine performs the parking charging function, a target charging gear corresponding to the target parameter is output.

6. A vehicle control device, characterized in that: The device comprises: an acquisition module, for acquiring a current temperature of a target position and current parameters of an engine in the vehicle when the parking charging function is turned on in the vehicle; wherein the current temperature is used to represent the temperature of the target position when the parking charging function is running; and the target position is used to represent a position in a low-temperature circuit in the vehicle; The acquisition module is further used to determine a target restriction level corresponding to the current temperature according to the current temperature; wherein the target restriction level is used to indicate the restriction intensity of the current parameter at the current temperature; the target restriction level includes a first restriction level, a second restriction level and a third restriction level; the restriction intensity of the first restriction level is less than the restriction intensity of the second restriction level; the restriction intensity of the second restriction level is less than the restriction intensity of the third restriction level; The acquisition module is further configured to obtain the target parameter according to the charging gear corresponding to the current parameter if the target restriction level is the second restriction level; a control module, configured to control the engine to perform the parking charging function according to the target parameter; The acquisition module specifically includes: If the charging gear corresponding to the current parameter is the first preset charging gear, the charging parameter corresponding to the target charging gear is determined as the target parameter; wherein the target charging gear is used to represent a charging gear that is lower than the first preset charging gear by a preset number of gears; If the charging gear corresponding to the current parameter is a second preset charging gear, the preset parameter is determined as the target parameter; wherein the second preset charging gear is lower than the first preset charging gear.

7. A vehicle, characterized in that: The vehicle comprises: A memory for storing executable program codes; A processor, configured to call and run the executable program code from the memory so that the vehicle executes the method according to any one of claims 1 to 5.

Images