Vehicle thermal management accessory control method, device, controller and storage medium

Abstract

The present invention discloses a vehicle thermal management accessory control method, device, controller, and storage medium for improving the heat dissipation of vehicle components. The method comprises: determining whether a target vehicle component requires an active air intake grille; determining the fault state of the active air intake grille; and, if the target vehicle component requires an active air intake grille and the active air intake grille is faulty, controlling the coordinated operation of the thermal management accessory corresponding to the target vehicle component.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle thermal control, and in particular to a vehicle thermal management accessory control method, device, controller and storage medium. Background Art

[0002] In order to make the vehicle look beautiful and show the sense of technology of the car, and to attract more consumers, active air intake grilles are being used more and more widely in vehicles. The main function of the active air intake grilles is to adjust the air intake volume by opening and closing the actuator (gate blades) to ventilate and dissipate heat for the vehicle.

[0003] The inventors discovered that the prior art provides a control scheme for an active grille that controls the gear ratio of a continuously variable transmission when a grille malfunction is detected. This scheme only considers whether the active grille is faulty and passively reduces the transmission gear ratio when the active grille fails, failing to effectively dissipate heat from vehicle components. Summary of the Invention

[0004] The present invention provides a vehicle thermal management accessory control method, device, controller and storage medium to solve the technical problem of the prior art that vehicle components cannot be effectively cooled.

[0005] In a first aspect, a vehicle thermal management accessory control method is provided, comprising:

[0006] Determine whether the target vehicle component requires active air intake grille operation;

[0007] determining a fault state of the active air intake grille;

[0008] When the target vehicle component requires an active air intake grille to operate and the active air intake grille fails, the thermal management accessories corresponding to the target vehicle component are controlled to operate in a coordinated manner.

[0009] Furthermore, the controlling of the coordinated operation of the thermal management accessories corresponding to the target vehicle components includes:

[0010] Determining the type of the target vehicle component;

[0011] When the target vehicle component is a power battery, the power battery temperature control system is controlled to enter a rapid cooling state, the air conditioning system is controlled to cool the power battery, and a request is sent to the actuator of the active air intake grille that is not faulty to fully open the grille.

[0012] Furthermore, after determining the type of the target vehicle component, the method further includes:

[0013] When the target vehicle components are any one or more of the engine, drive motor, charger, air conditioner, and DC converter, the vehicle cooling fan and electric water pump are controlled to run at full speed, and the actuator of the active air intake grille that is not faulty is requested to fully open the grille.

[0014] Furthermore, when the active air intake grille fails, the method further includes:

[0015] Obtaining a current power source temperature of the vehicle;

[0016] The vehicle torque is limited according to the power source temperature.

[0017] Furthermore, limiting the vehicle torque according to the power source temperature includes:

[0018] When the vehicle has both the engine and the drive motor as power sources, if the temperature of the drive motor is higher than the corresponding preset temperature threshold, only the engine is used for driving; if the temperature of the engine is higher than the corresponding preset temperature threshold, only the drive motor is used for driving; if the temperatures of both the engine and the drive motor are higher than the corresponding preset temperature threshold, the power of the entire vehicle is controlled to be limited to the power required to maintain limp home for a certain period of time.

[0019] Furthermore, limiting the vehicle torque according to the power source temperature further includes:

[0020] When the vehicle has only one power source, the engine or the drive motor, if the temperature of the engine or the drive motor is higher than the corresponding preset temperature threshold, the power of the entire vehicle is controlled to be limited to the power required to maintain limp home for a certain period of time.

[0021] In a second aspect, a vehicle thermal management accessory control device is provided, comprising:

[0022] The first judgment module is used to judge whether the target vehicle component needs the active air intake grille to work;

[0023] A second judgment module is used to judge the fault state of the active air intake grille;

[0024] The control module is used to control the coordinated operation of the thermal management accessories corresponding to the vehicle component when the vehicle target component requires the active air intake grille to work and the active air intake grille fails.

[0025] Furthermore, the control module is specifically configured to:

[0026] Determining the type of the target vehicle component;

[0027] When the target vehicle component is a power battery, the power battery temperature control system is controlled to enter a rapid cooling state, the air conditioning system is controlled to cool the power battery, and all actuators of the active air intake grille are requested to fully open the active air intake grille.

[0028] In a third aspect, a controller is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned vehicle thermal management accessory control method when executing the computer program.

[0029] In a fourth aspect, a readable storage medium is provided, wherein the readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned vehicle thermal management accessory control method are implemented.

[0030] In a solution provided by the above-mentioned vehicle thermal management accessory control method, device, controller and storage medium, the demand status of the vehicle components for the active air intake grille and the fault status of the active air intake grille are taken into consideration at the same time. When the target vehicle component requires the active air intake grille to work and its active air intake grille fails, the heat dissipation capacity can be effectively improved through the coordinated control of the corresponding thermal management accessories, thereby effectively reducing the overheating of various components and improving the vehicle's power and charging functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 This is a schematic diagram of an application environment of the vehicle thermal management accessory control method of the present invention;

[0033] Figure 2 It is a flow chart of a vehicle thermal management accessory control method of the present invention;

[0034] Figure 3 yes Figure 2 A schematic diagram of an implementation method of step 30;

[0035] Figure 4 It is a structural schematic diagram of the vehicle thermal management accessory control device of the present invention;

[0036] Figure 5 It is a structural diagram of the controller in the present invention. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] The vehicle thermal management accessory control method provided by the embodiment of the present invention can be applied in the following situations: Figure 1 In the application environment, which includes a controller, vehicle parts, and vehicle thermal management accessories, wherein the vehicle parts include power batteries, engines (and / or drive motors), chargers, air conditioners, direct current converters (DC-DC converters), etc., and vehicle thermal management accessories refer to related components / systems / devices for dissipating heat from vehicle parts. For example, the above-mentioned vehicle thermal management accessories include a power battery temperature control system, an air conditioning system, a vehicle cooling fan, an electric water pump, and an active air intake grille. The vehicle thermal management accessory control method provided by the present invention is applied to a controller, which may refer to a vehicle controller, which is not specifically limited. The controller can control the thermal management accessories corresponding to the vehicle parts to coordinate heat dissipation by obtaining relevant status parameters of the vehicle parts and active air intake grille fault diagnosis signals.

[0039] It should be noted that Figure 1 The above application environment is only for illustrative purposes and does not limit the present invention.

[0040] like Figure 2 As shown, an embodiment of the present invention provides a flow chart of an embodiment of a vehicle thermal management accessory control method, including the following steps:

[0041] S10: Determine whether the target vehicle component requires an active air intake grille to operate.

[0042] The target vehicle component refers to any component in the vehicle. For example, the target vehicle component may be a power battery, an engine, a drive motor, an air conditioner, a charger, or a DC converter, etc., and the present invention does not limit this.

[0043] During vehicle startup or operation, the controller determines in real time whether a target vehicle component requires active grille operation. The controller determines whether active grille operation is required for different vehicle components in different ways, as described below.

[0044] For the power battery, the controller can determine whether the power battery needs to be cooled by the front radiator based on the system status of the power battery temperature control system. If it is determined that the power battery needs to be cooled by the front radiator, it will determine that the power battery needs to operate the active air intake grille, that is, the active air intake grille needs to be opened for ventilation. Conversely, if it is determined that the power battery does not need to be cooled by the front radiator, it will determine that the power battery does not need to operate the active air intake grille. It should be noted that the power battery temperature control system is a system used to control the temperature of the power battery, including dissipating heat from the power battery. When the power battery temperature control system needs to dissipate heat from the power battery, its own system status will change accordingly. The controller can then use the system status of the power battery temperature control system to determine in real time whether the power battery needs to operate the active air intake grille.

[0045] For the engine, the controller can determine in real time whether the engine requires active grille operation based on the active grille opening request and request validity signal, engine coolant temperature, and temperature validity signal fed back by the engine. It should be noted that when the engine temperature exceeds a certain level, the engine will request active grille operation from the in-vehicle controller. Specifically, it will feedback the active grille opening request and request validity signal, engine coolant temperature, and temperature validity signal, enabling the in-vehicle controller to control active grille operation. If the controller determines that it has received the active grille opening request and request validity signal, engine coolant temperature, and temperature validity signal fed back by the engine, it determines that the engine requires active grille operation; otherwise, it determines that the engine does not require active grille operation. It should be noted that the above method for determining whether the engine requires active grille operation is merely illustrative; in actual applications, other methods may be used, and are not limited here. For example, if the engine receives the active grille opening request and request validity signal fed back by the engine, it can directly determine that the engine requires active grille operation. The engine coolant temperature and effective temperature signal are information used as a reference for the active air intake grille opening.

[0046] For the in-vehicle air conditioner, the controller can determine in real time whether the air conditioner requires active grille operation based on the active grille opening request and request validity signal, the air conditioner compressor power, and the power validity signal. It should be noted that under certain air conditioner operating conditions, the air conditioner may require active grille operation. The air conditioner will request this from the controller. Specifically, it will provide the active grille opening request and request validity signal, the air conditioner compressor power, and the power validity signal, enabling the in-vehicle controller to control active grille operation. If the controller receives the active grille opening request and request validity signal, and the air conditioner compressor power and power validity signal, it determines that the engine requires active grille operation. Otherwise, it determines that the air conditioner does not require active grille operation. It should be noted that the above method for determining whether the air conditioner requires active grille operation is merely illustrative. In practice, other methods are possible and are not limited here. For example, if the air conditioner receives the active grille opening request and request validity signal, it can directly determine that the air conditioner requires active grille operation. The air conditioning compressor power and power effective signal are information used as a reference for the active air intake grille opening.

[0047] For the drive motor, charger, DC converter, etc., it can be determined whether they need the active air intake grille to work according to their corresponding status signals. Specifically, the controller will determine whether the drive motor needs the active air intake grille to work based on the drive motor temperature and its effective signal, the drive coolant temperature and its effective signal; the controller will determine whether the charger needs the active air intake grille to work based on the charger temperature and its effective signal; the controller will determine whether the DC converter needs the active air intake grille to work based on the DC converter temperature and its effective signal. The details will not be described in detail here.

[0048] S20: Determine the fault status of the active air intake grille.

[0049] The present invention also determines the fault status of the active air intake grille. It is understood that an active air intake grille is generally equipped with multiple actuators, typically dual actuators. The controller can determine the fault status of the active air intake grille by evaluating the actuator fault diagnosis signal fed back by the active air intake grille. For example, taking an active air intake grille with dual actuators (including actuator 1 and actuator 2) as an example, the relationship between the active air intake grille fault type and whether or not to respond to controller commands can be shown in Table 1 below:

[0050]

[0051]

[0052] Table 1

[0053] As shown in Table 1, the active air intake grille can experience various fault types, including actuator overvoltage, overtemperature, and Lin communication failure. If a particular actuator in the active air intake grille experiences a fault type listed in Table 1, it will be unable to respond to controller commands. For example, if actuator 1 experiences a Lin communication failure, actuator 1 will be unable to respond to controller commands. In this embodiment of the present invention, the fault status of the active air intake grille is determined in real time. If any of the active air intake grille actuators experiences one of these fault types, the active air intake grille is deemed faulty.

[0054] S30: When the target vehicle component requires an active air intake grille to operate and the active air intake grille fails, controlling the thermal management accessories corresponding to the target vehicle component to operate in a coordinated manner.

[0055] In the present invention, when a target vehicle component requires active grille operation and the active grille fails, the controller controls the coordinated operation of the thermal management accessories corresponding to the vehicle component. For example, when it is determined that a power battery requires active grille operation and the active grille fails, the controller controls the coordinated operation of the thermal management accessories corresponding to the power battery.

[0056] It can be seen that in an embodiment of the present invention, a vehicle thermal management accessory control method is provided. When a target component of a vehicle requires an active air intake grille to work and its active air intake grille fails, the heat dissipation capacity can be effectively improved through coordinated control of the corresponding thermal management accessories, and the overheating of each component can be effectively reduced, thereby further reducing the impact on the vehicle's power and charging functions.

[0057] It is worth mentioning that, in the embodiment of the present invention, corresponding thermal management accessories are provided for different vehicle components. For different target vehicle components, the heat dissipation effect is improved by coordinating and controlling the corresponding thermal management accessories of the target vehicle components.

[0058] Specifically, in one embodiment, Figure 3 As shown, step S30, i.e. controlling the coordinated operation of the thermal management accessories corresponding to the target vehicle components, specifically includes the following steps:

[0059] S31: Determine the type of the target vehicle component;

[0060] S32: When the target vehicle component is a power battery, the power battery temperature control system is controlled to enter a rapid cooling state, the air conditioning system is controlled to cool the power battery, and a request is sent to the actuator of the active air intake grille that is not faulty to fully open the grille.

[0061] It should be noted that the power battery temperature control system is a vehicle-mounted cooling device. Rapid cooling is one of the system's operating states. In this rapid cooling state, the system triggers appropriate temperature control operations, rapidly cooling the power battery. This effectively ensures effective heat dissipation in the event that the power battery requires an active air intake grille and the active air intake grille malfunctions, mitigating the risk of power battery failure or operational inefficiency. In addition to controlling the power battery temperature control system to enter the rapid cooling state, the system also controls the vehicle's air conditioning system to cool the power battery. Specifically, the controller controls the relevant three-way valves and three-way proportional valves within the vehicle to switch the temperature control circuit to utilize the air conditioning system's rapid cooling circuit, thereby cooling the power battery through the air conditioning system and further ensuring effective heat dissipation from the power battery. Furthermore, in this embodiment of the present invention, a request is made to fully open the active air intake grille actuators that are not experiencing any malfunctions. It can be understood that when it is determined that the active air intake grille has a fault, it may be that one of the actuators has a fault, while the other actuator has not failed. In this case, the actuator that has not failed can still respond to the controller instructions. Therefore, in order to further ensure the heat dissipation effect, the actuator that has not failed will be requested to fully open the grille, so that the grille of the actuator that has not failed will be opened to maintain ventilation, further improving the heat dissipation effect.

[0062] S32: When the target vehicle components are any one or more of an engine, a drive motor, a charger, an air conditioner, and a DC converter, the vehicle cooling fan and the electric water pump are controlled to run at full speed, and a request is sent to the actuator of the active air intake grille that has not failed to fully open the grille.

[0063] In some embodiments, when the target vehicle components are any one or more of an engine, a drive motor, a charger, an air conditioner or a DC converter, the vehicle cooling fan and the electric water pump are controlled to run at full speed to ensure the heat dissipation effect of the target vehicle components, such as the engine, the drive motor, the charger, the air conditioner or the DC converter.

[0064] It should be noted that the vehicle cooling fan and electric water pump are built-in cooling devices of the vehicle, and full-speed operation is one of the working states of the vehicle cooling fan and electric water pump. When running at full speed, the vehicle cooling fan and electric water pump have a strong heat dissipation capacity. In addition, in addition to controlling the vehicle cooling fan and electric water pump to operate at full speed, the active air intake grille will also be proactively requested to fully open the grille from the actuator that has not failed. As mentioned above, when it is determined that the active air intake grille has failed, it may be that one of the actuators has failed, while the other actuator has not failed. In this case, the actuator that has not failed can still respond to the controller instruction. Therefore, in order to further ensure the heat dissipation effect, the active air intake grille is also requested to fully open the grille from the actuator that has not failed, so that the grille of the actuator that has not failed is opened to maintain ventilation, further improving the heat dissipation effect.

[0065] It can be seen that in the above embodiment, corresponding thermal management accessories are set for different vehicle components, and the corresponding thermal management accessories of the vehicle target components are coordinated and controlled for different vehicle target components, thereby specifically improving the heat dissipation effect of each vehicle component.

[0066] It should be noted that, in order to further improve the heat dissipation effect, reduce the vehicle failure rate, and improve product quality, the vehicle thermal management accessory control method provided by the present invention, when the active air intake grille fails, further includes the following steps:

[0067] S40: Acquire the current power source temperature of the vehicle.

[0068] It should be understood that different vehicles may have different power sources depending on their propulsion system. Vehicle power sources typically include the following: The first type includes only the engine as a power source; the second type includes only the drive motor as a power source; and the third type includes both the engine and the drive motor as a power source. In this embodiment of the present invention, when the active air intake grille malfunctions, the vehicle's current power source temperature is also obtained in real time.

[0069] S50: Limiting the vehicle torque according to the power source temperature.

[0070] In this embodiment of the present invention, the vehicle's current power source temperature is combined in real time to limit the vehicle's torque in real time, thereby reducing the heat generated by the relevant power source. The power source temperature can be read by a temperature sensor, which is not described in detail in this embodiment.

[0071] It is understood that, as mentioned above, there are many ways to set the power source of a vehicle. Therefore, there are different solutions for limiting the vehicle torque according to the power source temperature. Specifically, limiting the vehicle torque according to the power source temperature refers to:

[0072] When both the engine and the drive motor are present, if the temperature of the drive motor is higher than the corresponding preset temperature threshold, only the engine is used for driving; if the temperature of the engine is higher than the corresponding preset temperature threshold, only the drive motor is used for driving. It can be seen that in the embodiment of the present invention, when both the engine and the drive motor are present, corresponding preset temperature values ​​are set for both the engine and the drive motor, wherein the preset temperature threshold corresponding to the engine or the drive motor can be calibrated based on actual test results and is not limited here. When the active air intake grille fails and the temperature of a power source is too high, the power source with the high temperature is abandoned, thereby reducing the heat generated by the power source with the high temperature and improving the heat dissipation effect.

[0073] When both the engine and the drive motor are used as power sources, if the temperatures of both exceed the corresponding preset temperature thresholds, the vehicle's power is limited to the power required to maintain limp home mode for a specified period of time, reducing overall power source heat generation and improving heat dissipation. When only one of the engine or drive motor is used as power source, if the temperature of either source exceeds the corresponding preset temperature threshold, the vehicle's power is directly limited to the power required to maintain limp home mode for a specified period of time. In some solutions, an active grille fault indication is also displayed on the instrument panel to facilitate prompt driver intervention.

[0074] The power required for limp home can be achieved by coordinating and controlling the driving torque of the engine and the drive motor, and the duration for maintaining the power required for limp home can also be determined based on actual vehicle tests, without specific limitation.

[0075] In summary, the present invention can effectively reduce the occurrence of over-temperature failures of various vehicle components by coordinating the control of the thermal management accessories of the entire vehicle when the vehicle components require the active air intake grille to work and its actuator fails, thereby reducing the impact of heat dissipation problems on the power and charging functions of the entire vehicle, improving the product quality of the entire vehicle, and having a good application scenario.

[0076] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0077] In one embodiment, a vehicle thermal management accessory control device is provided, which corresponds one-to-one to the vehicle thermal management accessory control method in the above embodiment. Figure 4 As shown, the vehicle thermal management accessory control device includes a first judgment module 101, a second judgment module 102 and a control module 103. The functional modules are described in detail as follows:

[0078] The first judgment module is used to judge whether the target vehicle component needs the active air intake grille to work;

[0079] A second judgment module is used to judge the fault state of the active air intake grille;

[0080] The control module is used to control the coordinated operation of the thermal management accessories corresponding to the vehicle component when the vehicle target component requires the active air intake grille to work and the active air intake grille fails.

[0081] In one embodiment, the control module is specifically configured to:

[0082] Determining the type of the target vehicle component;

[0083] When the target vehicle component is a power battery, the power battery temperature control system is controlled to enter a rapid cooling state, the air conditioning system is controlled to cool the power battery, and all actuators of the active air intake grille are requested to fully open the active air intake grille.

[0084] In one embodiment, the control module is further configured to:

[0085] When the target vehicle components are any one or more of the engine, drive motor, charger, air conditioner, and DC converter, the vehicle cooling fan and electric water pump are controlled to run at full speed, and the actuator of the active air intake grille that is not faulty is requested to fully open the grille.

[0086] In one embodiment, the vehicle thermal management accessory control device further includes an acquisition module;

[0087] The acquisition module is configured to acquire the current power source temperature of the vehicle when a fault occurs in the active air intake grille;

[0088] The control module is further configured to limit the vehicle torque according to the power source temperature.

[0089] In one embodiment, the control module is configured to:

[0090] When both the engine and the drive motor are power sources, if the temperature of the drive motor is higher than the corresponding preset temperature threshold, only the engine is used for driving; if the temperature of the engine is higher than the corresponding preset temperature threshold, only the drive motor is used for driving; if the temperatures of both the engine and the drive motor are higher than the corresponding preset temperature threshold, the power of the entire vehicle is controlled to be limited to the power required to maintain limp homeostasis for a certain period of time.

[0091] When there is only one power source, the engine or the drive motor, if the temperature of the engine or the drive motor is higher than the corresponding preset temperature threshold, the power of the entire vehicle is controlled to be limited to the power required to maintain limp home for a certain period of time.

[0092] It can be seen that in an embodiment of the present invention, a vehicle thermal management accessory control device is provided. When a target component of a vehicle requires an active air intake grille to work and its active air intake grille fails, the heat dissipation capacity can be effectively improved through coordinated control of the corresponding thermal management accessories, effectively reducing the overheating of various components, and further reducing the impact on the vehicle's power and charging functions.

[0093] The specific definitions of the vehicle thermal management accessory control device can be found in the definitions of the vehicle thermal management accessory control method described above and will not be further elaborated here. Each module within the aforementioned vehicle thermal management accessory control device may be implemented in whole or in part via software, hardware, or a combination thereof. Each of these modules may be embedded in or independent of a processor within a computer device in hardware form, or stored in a computer device memory in software form, allowing the processor to call and execute the corresponding operations of each module.

[0094] In one embodiment, a controller is provided, which may be a vehicle controller, and its internal structure diagram may be as follows: Figure 5 As shown. The controller includes a processor, a memory and a network interface connected via a system bus. The processor of the controller is used to provide computing and control capabilities. The memory of the controller includes a storage medium and an internal memory. The storage medium storage includes a volatile or non-volatile storage medium, and the storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the storage medium. The network interface of the controller is used to communicate with an external system or component, such as a power battery temperature control system, through a network connection. When the computer program is executed by the processor, a vehicle thermal management accessory control method is implemented.

[0095] In one embodiment, a controller is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented:

[0096] Determine whether the target vehicle component requires active air intake grille operation;

[0097] determining a fault state of the active air intake grille;

[0098] When the target vehicle component requires an active air intake grille to operate and the active air intake grille fails, the thermal management accessories corresponding to the target vehicle component are controlled to operate in a coordinated manner.

[0099] In one embodiment, a readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0100] Determine whether the target vehicle component requires active air intake grille operation;

[0101] determining a fault state of the active air intake grille;

[0102] When the target vehicle component requires an active air intake grille to operate and the active air intake grille fails, the thermal management accessories corresponding to the target vehicle component are controlled to operate in a coordinated manner.

[0103] It can be seen that in an embodiment of the present invention, a controller and a readable storage medium are provided. When a target component of a vehicle requires an active air intake grille to work and its active air intake grille fails, the heat dissipation capacity can be effectively improved through coordinated control of the corresponding thermal management accessories, and the overheating of each component can be effectively reduced, thereby further reducing the impact on the vehicle's power and charging functions.

[0104] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0105] Those skilled in the art will clearly understand that for the sake of convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0106] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A vehicle thermal management accessory control method, characterized in that: include: Determining whether a target vehicle component requires an active air intake grille to operate; determining a fault state of the active air intake grille; When the target vehicle component requires the active air intake grille to work and the active air intake grille fails, controlling the thermal management accessories corresponding to the target vehicle component to work in a coordinated manner; The controlling the coordinated operation of the thermal management accessories corresponding to the target vehicle component includes: determining the type of the target vehicle component; When the target vehicle component is a power battery, the power battery temperature control system is controlled to enter a rapid cooling state, the air conditioning system is controlled to cool the power battery, and a request is sent to the actuator of the active air intake grille that is not faulty to fully open the grille.

2. The vehicle thermal management accessory control method according to claim 1, wherein: After determining the type of the target vehicle component, the method further includes: when the target vehicle component is any one or more of an engine, a drive motor, a charger, an air conditioner, and a DC converter, controlling the vehicle cooling fan and the electric water pump to operate at full speed, and requesting the actuator of the active air intake grille that is not faulty to fully open the grille.

3. The vehicle thermal management accessory control method according to any one of claims 1 to 2, characterized in that: When the active air intake grille fails, the method further includes: obtaining a current power source temperature of the vehicle; and limiting the vehicle torque according to the power source temperature.

4. The vehicle thermal management accessory control method according to claim 3, wherein: The method of limiting the vehicle torque according to the power source temperature includes: when the vehicle has both an engine and a drive motor as power sources, if the temperature of the drive motor is higher than the corresponding preset temperature threshold, only the engine is used for driving; if the temperature of the engine is higher than the corresponding preset temperature threshold, only the drive motor is used for driving; if the temperatures of both the engine and the drive motor are higher than the corresponding preset temperature threshold, controlling the vehicle power to be limited to the power required to maintain limp home for a certain period of time.

5. The vehicle thermal management accessory control method according to claim 4, wherein: The method of limiting the vehicle torque according to the power source temperature also includes: when the vehicle only has one of the engine or drive motor as the power source, if the temperature of the engine or drive motor is higher than the corresponding preset temperature threshold, controlling the vehicle power to be limited to the power required to maintain limp home for a certain period of time.

6. A vehicle thermal management accessory control device, characterized in that: include: The first judgment module is used to judge whether the target vehicle component needs the active air intake grille to work; A second judgment module is used to judge the fault state of the active air intake grille; a control module configured to control the coordinated operation of thermal management accessories corresponding to the vehicle component when the target vehicle component requires the active air intake grille to operate and the active air intake grille fails; In addition, the control module is specifically used to: determine the type of the vehicle target component; when the vehicle target component is a power battery, control the power battery temperature control system to enter a rapid cooling state, control the air-conditioning system to cool the power battery, and request all actuators of the active air intake grille to fully open the active air intake grille.

7. A controller comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the vehicle thermal management accessory control method according to any one of claims 1 to 5 are implemented.

8. A readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the vehicle thermal management accessory control method according to any one of claims 1 to 5 are implemented.

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