Electric vehicle thermal management system fault processing method, device, medium and equipment

Abstract

Embodiments of the present application disclose a method, device, medium and equipment for processing faults of a thermal management system of an electric vehicle. The method comprises: determining a faulty electronic device in response to a fault processing request sent by the thermal management system, and determining fault information of the faulty electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices; determining a thermal management module to which the faulty electronic device belongs in the thermal management system, and taking the thermal management module as a target thermal management module; determining a target fault processing plan in candidate fault processing plans of the target thermal management module based on the fault information of the faulty electronic device, and processing the fault processing request based on the target fault processing plan. The technical scheme of the present application provides a systematic method for processing faults of the thermal management system of the electric vehicle, and can improve the reliability of the thermal management system of the electric vehicle and ensure driving safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computer application, and in particular, relates to an electric vehicle thermal management system fault processing method, device, medium and equipment. BACKGROUND

[0002] The thermal management system of an electric vehicle plays a huge role, not only needs to be responsible for the cooling of high-voltage components such as motors, batteries, DCDCs, and charging machines, and in order to make the battery still have excellent discharge capacity in cold weather, some models also need to be responsible for the heating of the battery.

[0003] Once the thermal management system fails, the electric vehicle will not be able to dissipate heat, and the related elements will have the risk of over-temperature, which seriously affects the vehicle performance and threatens the driving safety. In the case of failure of the thermal management system, taking effective fault processing methods can minimize personal and property losses. SUMMARY

[0004] The present application provides an electric vehicle thermal management system fault processing method, device, medium and equipment, which can improve the reliability of the electric vehicle thermal management system and ensure driving safety.

[0005] According to a first aspect of the present application, an electric vehicle thermal management system fault processing method is provided, the method comprising:

[0006] determining a fault electronic device in response to a fault processing request sent by a thermal management system, and determining fault information of the fault electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices;

[0007] determining a thermal management module to which the fault electronic device belongs in the thermal management system, and taking the thermal management module as a target thermal management module;

[0008] determining a target fault processing plan in candidate fault processing plans of the target thermal management module based on the fault information of the fault electronic device, and processing the fault processing request based on the target fault processing plan.

[0009] According to a second aspect of the present application, an electric vehicle thermal management system fault processing device is provided, the device comprising:

[0010] a fault information determination module configured to determine a fault electronic device in response to a fault processing request sent by a thermal management system, and determine fault information of the fault electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices;

[0011] a target thermal management module determination module, configured to determine a target thermal management module to which the faulty electronic device belongs in the thermal management system, and take the thermal management module as the target thermal management module;

[0012] a target fault handling plan determination module, configured to determine a target fault handling plan in candidate fault handling plans of the target thermal management module based on the fault information of the faulty electronic device, and handle the fault handling request based on the target fault handling plan.

[0013] According to a third aspect of the present application, the embodiments of the present application provide a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the electric vehicle thermal management system fault handling method according to the embodiments of the present application.

[0014] According to a fourth aspect of the present application, the embodiments of the present application provide an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable by the processor, and the processor implements the electric vehicle thermal management system fault handling method according to the embodiments of the present application when executing the computer program.

[0015] The technical scheme of the embodiments of the present application determines a faulty electronic device in response to a fault handling request sent by a thermal management system, and determines fault information of the faulty electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices; a target thermal management module to which the faulty electronic device belongs in the thermal management system is determined, and the thermal management module is taken as the target thermal management module; a target fault handling plan in candidate fault handling plans of the target thermal management module is determined based on the fault information of the faulty electronic device, and the fault handling request is handled based on the target fault handling plan. A systematic electric vehicle thermal management system fault handling method is provided, which can improve the reliability of the electric vehicle thermal management system, ensure driving safety, and improve user experience.

[0016] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a flow chart of the electric vehicle thermal management system fault processing method according to embodiment one;

[0019] Figure 2 is a flow chart of the electric vehicle thermal management system fault processing method according to embodiment two;

[0020] Figure 3 is a structural schematic diagram of the electric vehicle thermal management system fault processing device according to embodiment three of the present application;

[0021] Figure 4 is a structural schematic diagram of an electronic device according to embodiment four of the present application. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", "target" and "candidate" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] Embodiment one

[0025] Figure 1 is a flow chart of the electric vehicle thermal management system fault processing method according to embodiment one. The present embodiment can be applied to the case where the thermal management system of an electric vehicle fails. The method can be executed by an electric vehicle thermal management system fault processing device, which can be realized in the form of hardware and / or software and can be integrated into an electronic device running the system.

[0026] As shown in Figure 1 , the method comprises:

[0027] S110, determining a faulty electronic device in response to the fault handling request sent by the thermal management system, and determining fault information of the faulty electronic device.

[0028] The thermal management system comprises at least two thermal management modules, and the thermal management modules comprise at least two electronic devices.

[0029] The thermal management system is a system for controlling and optimizing heat transfer from the perspective of system integration. It can automatically adjust the temperature according to the driving conditions and environmental conditions to ensure that the regulated object works in the optimal temperature range, thereby optimizing the environmental performance and energy saving effect of the whole vehicle, and improving the running safety and driving comfort of the vehicle, etc. The regulated objects corresponding to different thermal management modules may be different. For example, the regulated object corresponding to the battery thermal management module is the battery; and the regulated object corresponding to the motor management module is the motor.

[0030] The working state of the electronic device of each thermal management module in the thermal management system is obtainable, and the thermal management system generates a fault handling request when it detects that the working state of the electronic device is abnormal. The fault handling request is used to request the VCU (Vehicle Control Unit) to handle the fault existing in the thermal management system. The VCU is an electronic control unit arranged in the electric vehicle, and it is the core of the electric vehicle for realizing the whole vehicle control decision.

[0031] The VCU determines the faulty electronic device and the fault information of the faulty electronic device according to the fault handling request in response to the fault handling request sent by the thermal management system. The faulty electronic device refers to the electronic device that has occurred a fault.

[0032] In an optional embodiment, the thermal management system belongs to a pure electric vehicle or a hybrid electric vehicle.

[0033] As two main types of electric vehicles, the pure electric vehicle and the hybrid electric vehicle, the electric vehicle thermal management system fault handling method provided in the embodiments of the present application can be applied to the case where the thermal management system of the main type of electric vehicle fails, and can handle the fault existing in the thermal management system of the pure electric vehicle or the hybrid electric vehicle, thereby effectively expanding the application range of the electric vehicle thermal management system fault handling method.

[0034] It is worth noting that the electric vehicle thermal management system fault processing method provided by the embodiments of the present application is applicable to the case where the electronic device in the thermal management system fails. The mechanical components in the thermal management system are not the focus of the embodiments of the present application. It can be understood that the VCU can distinguish whether the fault in the thermal management system is a mechanical fault or an electronic fault. Optionally, the VCU can distinguish the mechanical fault and the electronic fault based on the fault reporting channel. Generally, the mechanical fault is reported by the controller, the sensor or the actuator. And the electronic fault is generally reported by the electronic device itself.

[0035] S120, determining a thermal management module to which the fault electronic device belongs in the thermal management system, and taking the thermal management module as a target thermal management module.

[0036] The thermal management system includes at least two thermal management modules, and different thermal management modules have different functions in the thermal management system. Each thermal management module includes at least two electronic devices, and different electronic devices have different functions in the thermal management module. The failure of different electronic devices in the same thermal management module has different effects on the thermal management system. Therefore, the failure of different electronic devices requires different fault processing schemes. Determining the thermal management module to which the fault electronic device belongs facilitates determining the function of the fault electronic device in the thermal management system, and is conducive to quickly determining the fault processing scheme.

[0037] In an optional embodiment, the thermal management module includes at least one of a battery thermal management module, a motor thermal management module and an air conditioner thermal management module; and the electronic device includes at least one of a vehicle controller, an air conditioner controller, a water pump, a water valve, a fan and a temperature sensor.

[0038] The battery thermal management module is used for temperature regulation of the battery, specifically for heating or cooling the battery, and can ensure that the battery works in an optimal temperature range. The motor thermal management module is used for temperature regulation of the motor, specifically for cooling the motor, and can ensure that the motor works in an optimal temperature range. The air conditioner thermal management module is used for temperature regulation of the cab, specifically for controlling the air conditioner to heat or cool.

[0039] Optionally, the electronic devices included in different thermal management modules have an intersection, for example, the battery thermal management module, the motor thermal management module and the air conditioner thermal management module can all include the vehicle controller, the water pump, the water valve, the fan and the temperature sensor. The air conditioner thermal management module and the battery thermal management module can also include the air conditioner controller. The number of the same type of electronic devices included in different thermal management modules is not related, and is determined according to the actual business requirements, for example, the motor thermal management module can include one water pump and two water valves, and the air conditioner thermal management module can include one water pump and one water valve.

[0040] Optionally, in the case where the above thermal management module includes the same type of electronic device, different thermal management modules can share the electronic device. For example, the battery thermal management module, the motor thermal management module and the air conditioner thermal management module share the vehicle controller and the fan. The battery thermal management module and the air conditioner thermal management module can share one air conditioner controller, one temperature sensor and one water valve.

[0041] Of course, it can be understood that the thermal management module can not share the electronic device with other thermal management modules, but each thermal management module has its own electronic device. For example, the battery thermal management module, the motor thermal management module and the air conditioner thermal management module can each have a water pump. The above technical solution divides the thermal management modules in the thermal management system from the functional point of view, and determines the type of electronic devices included in the thermal management system, which facilitates the rapid positioning of the faulty electronic device in the thermal management system and provides data support for quickly determining the fault handling scheme.

[0042] S130, determining a target fault handling plan in the candidate fault handling plan of the target thermal management module based on the fault information of the faulty electronic device, and handling the fault handling request based on the target fault handling plan.

[0043] The fault handling plan is used to handle the fault existing in the thermal management system. The fault handling plan is determined in advance based on the connection relationship between the electronic devices in the thermal management module. The fault handling plan can cover all possible faults of the electronic devices in the thermal management system, and the handling scheme for dealing with the fault of the electronic device is recorded in the fault handling plan.

[0044] Optionally, the fault handling plan is stored in the VCU in the dimension of the thermal management module. The target fault thermal management module is the thermal management module to which the faulty electronic device belongs. After the VCU determines the target thermal management module, the candidate fault handling plan is selected from all the fault handling plans corresponding to the target thermal management module. The candidate fault handling plan refers to the fault handling plan related to the faulty electronic device in the target thermal management module.

[0045] The VCU determines a target fault handling plan among candidate fault handling plans based on fault information of the faulty electronic device.

[0046] The VCU executes a handling scheme recorded in the target fault handling plan to weaken the influence of the faulty electronic device on the thermal management system, and maximally mitigates personal and property losses caused by the failure of the electronic device in the thermal management system.

[0047] The technical scheme of the embodiment of the application determines a faulty electronic device in response to a fault handling request sent by a thermal management system, and determines fault information of the faulty electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices; a thermal management module to which the faulty electronic device belongs is determined in the thermal management system, and the thermal management module is taken as a target thermal management module; a target fault handling plan is determined among candidate fault handling plans of the target thermal management module based on the fault information of the faulty electronic device, and the fault handling request is handled based on the target fault handling plan. A systematic fault handling method of a thermal management system of an electric vehicle is provided, which can improve the reliability of the thermal management system of the electric vehicle, ensures driving safety, and improves user experience.

[0048] In an optional embodiment, after the fault handling request is handled based on the target fault handling plan, the method further comprises: generating fault prompt information for the thermal management system according to the fault handling request; and performing a thermal management system maintenance prompt based on the fault prompt information.

[0049] The fault prompt information is generated by the VCU based on the fault handling request, and is used to prompt the user to timely maintain the thermal management system. The thermal management system maintenance prompt is performed based on the fault prompt information, specifically, the VCU controls an on-board prompt device to show the fault prompt information of the thermal management system to the user in the form of voice or text. The on-board prompt device can be a central control display screen or a voice broadcast device.

[0050] The above technical scheme generates the fault prompt information after the VCU handles the fault handling request based on the target fault handling plan, and performs the thermal management system maintenance prompt based on the fault prompt information, which can maximally protect the motor and the battery from overheating and improve the service life thereof.

[0051] Embodiment Two

[0052] Figure 2is a flowchart of the electric vehicle thermal management system fault handling method provided in Embodiment Two. This embodiment is further optimized on the basis of the above-mentioned embodiment, and specifically, the operation of "determining a target fault handling plan in the candidate fault handling plans of the target thermal management module based on the fault information of the faulty electronic device" is refined.

[0053] As shown in Figure 2 , the method comprises:

[0054] S210, determining a faulty electronic device in response to a fault handling request sent by a thermal management system, and determining fault information of the faulty electronic device.

[0055] Wherein, the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices.

[0056] S220, determining a thermal management module to which the faulty electronic device belongs in the thermal management system, and taking the thermal management module as a target thermal management module.

[0057] S230, determining a preliminary fault handling plan in the candidate fault handling plans according to a fault type in the fault information of the faulty electronic device, and determining a plan level of the preliminary fault handling plan.

[0058] As described above, the candidate fault handling plan refers to a fault handling plan related to the faulty electronic device in the target thermal management module.

[0059] Continue to take the above example for illustration, in the case of the faulty electronic device being a water valve, the fault type of the water valve includes abnormal closing or abnormal opening. The fault handling plans corresponding to different fault types of the faulty electronic device are different.

[0060] Wherein, the preliminary fault handling plan refers to a candidate fault handling plan corresponding to the fault type.

[0061] According to the fault type in the fault information of the faulty electronic device, a preliminary fault handling plan corresponding to the fault type is selected from the candidate fault handling plans. Screening the candidate fault handling plans based on the fault type can effectively reduce the screening range of the target fault handling plan and improve the determination efficiency of the target fault handling plan.

[0062] The plan level is used to measure the influence of executing the fault handling plan on the thermal management system. Generally speaking, the greater the influence of executing the fault handling plan on the thermal management system, the higher the plan level.

[0063] Continuing the above example, in the case of a water valve shared by the air conditioner thermal management module and the battery thermal management module, in order to avoid the water temperature of the battery water circuit exceeding 45℃, the fault handling plan can be: disable the air conditioner heating function to ensure that the water temperature of the air conditioner water circuit does not rise, and avoid the water temperature of the battery water circuit rising to cause the battery to overheat and damage the battery life. Executing the above fault handling plan will cause the air conditioner heating function of the thermal management system to fail. Accordingly, the plan level of the fault handling plan is determined.

[0064] Each candidate fault handling plan has a corresponding plan level. The preliminary fault handling plan is generated in the candidate fault handling plan. The preliminary fault handling plan also has a corresponding plan level. Based on the plan level, the preliminary fault handling plan can be further screened.

[0065] S240, based on the plan level and the fault level, determining a target fault handling plan in the preliminary fault handling plan, and handling the fault handling request based on the target fault handling plan.

[0066] Among them, the fault level is determined according to the influence degree of the fault electronic device on the thermal management system; the plan level is used to measure the influence of executing the fault handling plan on the thermal management system. Optionally, the fault level and the plan level are rated by the same standard.

[0067] Based on the plan level and the fault level, a target fault handling plan is determined in the preliminary fault handling plan. Specifically, taking the fault level as the reference level, selecting the preliminary fault handling plan with a lower plan level than the fault level, and further, based on the plan level, sorting the selected preliminary fault handling plan, and further selecting the one with the lowest plan level as the target fault handling plan, thereby reducing the influence degree on the thermal management system and minimizing personal and property losses.

[0068] Illustratively, in the case of a water valve shared by the air conditioner thermal management module and the battery thermal management module, and the fault type of the fault electronic device is the closing abnormality, the air conditioner heating function can be disabled as the target fault handling plan. The fault level of the fault electronic device is higher than the plan level of the target fault handling plan.

[0069] The VCU handles the fault handling request based on the target fault handling plan. Illustratively, the VCU sends a heating prohibition request to the air conditioner controller through the vehicle controller, and the air conditioner controller does not respond to the cab heating request after receiving the heating prohibition request until the water valve fault is eliminated, and the air conditioner heating function is restored.

[0070] The technical scheme of the application filters candidate fault handling plans according to the fault type of the faulty electronic device, to obtain a preliminary selected fault handling plan. The selection range of the target fault handling plan is narrowed, and the determination efficiency of the target fault handling plan is improved. The application also determines the plan level of the preliminary selected fault handling plan, and determines the target fault handling plan in the preliminary selected fault handling plan based on the fault level and the plan level, so as to minimize the personal and property losses caused by the fault of the thermal management system and improve the stability of the thermal management system.

[0071] In an optional embodiment, the fault information of the faulty electronic device is determined by: determining the fault type of the faulty electronic device based on the fault handling request; determining the fault influence of the faulty electronic device based on the association between the fault type and the fault influence, wherein the association is determined according to the connection relationship between the electronic devices in the thermal management module; and determining the fault level of the faulty electronic device based on the fault influence.

[0072] The fault type is used to determine which fault occurs in the electronic device. For example, the faulty electronic device can be a water valve, and the fault type of the water valve can be abnormal closing or abnormal opening. The fault influence is different for different fault types. The fault influence refers to the influence of the faulty electronic device on the thermal management system.

[0073] The association between the fault type and the fault influence is determined according to the connection relationship between the electronic devices in the thermal management module. It can be understood that after the thermal management system is built, the thermal management module in the thermal management system is determined, and the connection relationship between the electronic devices in the thermal management module is also determined. The connection relationship determines the functional role of the electronic device in the thermal management module. Based on the connection relationship between the electronic devices in the thermal management module, the fault influence of each electronic device can be determined when the electronic device is known.

[0074] The fault level is determined according to the influence degree of the faulty electronic device on the thermal management system. Generally, the greater the influence degree of the electronic device on the thermal management system, the higher the fault level of the electronic device.

[0075] For example, a water valve shared by an air conditioner thermal management module and a battery thermal management module is taken as an example for illustration. The water valve is used to control the on-off between the air conditioner water path and the battery water path. Specifically, controlling the water valve can make the battery water path and the air conditioner water path conductive, heat the battery through the air conditioner PTC, and meet the battery heating demand; and controlling the water valve can cut off the battery water path and the air conditioner water path, prevent the water in the air conditioner water path from entering the battery water path, and meet the temperature regulation demand of the cab. The PTC is a kind of semiconductor heating ceramic. When the external temperature decreases, the resistance value of the PTC decreases, and the heat generation amount increases accordingly.

[0076] The reason for cutting off the battery water path and the air conditioner water path through the water valve in the process of adjusting the temperature of the cab is that the battery water temperature needs to be kept below 45°C, and the air conditioner water temperature can reach 90°C at the highest. If the air conditioner water path and the battery water path are connected, it is likely to cause the battery water temperature to exceed 45°C, and once the battery water temperature exceeds 45°C, the battery will overheat, which will cause the battery to be damaged.

[0077] Therefore, it can be determined that the failure type of the water valve is an opening abnormality, and the corresponding failure influence is battery heating failure; the failure type of the water valve is a closing abnormality, and the corresponding failure influence is battery over-heating. It can be known that the battery heating is to make the battery still have excellent discharge capacity in cold weather. That is, battery heating failure will not damage the battery and will not affect the service life of the battery. Battery over-heating will damage the battery and affect the service life of the battery and even cause a fire to affect personal and property safety. Compared with the water valve opening abnormality, the failure level of the water valve closing abnormality is higher.

[0078] In an optional embodiment, the candidate failure handling plan of the thermal management module is constructed by: determining the coupling relationship between each thermal management module in the thermal management system; determining the connection relationship of the electronic devices in the thermal management module, and the function of each electronic device in the thermal management module; based on the coupling relationship, the connection relationship and the function, constructing a candidate failure handling plan for each electronic device; based on the candidate failure handling plan of the electronic device, constructing the candidate failure handling plan of the thermal management module.

[0079] Among them, each thermal management module in the thermal management system is not completely independent of each other, and there is a coupling between the functions of the thermal management modules in the thermal management system, which is specifically manifested as that different thermal management modules share electronic devices. For example, the battery thermal management module and the air conditioner thermal management module share the vehicle controller, the water valve, the fan, the temperature sensor and the air conditioner controller. Determining the coupling relationship between each thermal management module in the thermal management system is actually to determine the influence relationship between the thermal management modules, and to determine the influence of the failure of a certain thermal management module on other thermal management modules in the thermal management system.

[0080] As a basic unit of the thermal management module, the failure of the electronic device will directly affect the thermal management module, and different electronic devices have different functions and different degrees of influence on the thermal management module. Based on the coupling relationship, the connection relationship and the function, a candidate failure handling plan is constructed for each electronic device.

[0081] The candidate fault handling plan of the electronic device is stored in the dimension of the thermal management module, and the candidate fault handling plan is associated to the thermal management module to which the electronic device belongs.

[0082] The technical solution provides a construction method of a fault handling plan, candidate fault handling plans are constructed for electronic devices in a thermal management system based on coupling relations, connection relations and function relations, all possible faults of the electronic devices in the thermal management system are covered, and technical support is provided for improving the stability of the thermal management system.

[0083] Embodiment Three

[0084] Figure 3 Fig. 3 is a structural schematic of an electric vehicle thermal management system fault handling device provided by an embodiment of the present application. The embodiment can be applied to a situation where the thermal management system of an electric vehicle fails. The device can be realized by software and / or hardware, and can be integrated into an electronic device such as a smart terminal.

[0085] As shown in Fig. 3, the device can include a fault information determination module 310, a target thermal management module determination module 320 and a target fault handling plan determination module 330. Figure 3

[0086] The fault information determination module 310 is configured to determine a fault electronic device in response to a fault handling request sent by a thermal management system, and determine fault information of the fault electronic device. The thermal management system includes at least two thermal management modules, and the thermal management module includes at least two electronic devices.

[0087] The target thermal management module determination module 320 is configured to determine a thermal management module to which the fault electronic device belongs in the thermal management system, and take the thermal management module as a target thermal management module.

[0088] The target fault handling plan determination module 330 is configured to determine a target fault handling plan in a candidate fault handling plan of the target thermal management module based on the fault information of the fault electronic device, and handle the fault handling request based on the target fault handling plan.

[0089] ​The technical scheme of the embodiment of the application determines a fault electronic device in response to a fault processing request sent by a thermal management system, and determines fault information of the fault electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices; a thermal management module to which the fault electronic device belongs is determined in the thermal management system, and the thermal management module is taken as a target thermal management module; a target fault processing plan is determined in a candidate fault processing plan of the target thermal management module based on the fault information of the fault electronic device, and the target fault processing plan is used to process the fault processing request. A systematic fault processing method for a thermal management system of an electric vehicle is provided, which can improve the reliability of the thermal management system of the electric vehicle, ensure driving safety, and improve user experience.

[0090] Optionally, the thermal management module comprises at least one of a battery thermal management module, a motor thermal management module and an air conditioner thermal management module; and the electronic device comprises at least one of a vehicle controller, an air conditioner controller, a water pump, a water valve, a fan and a temperature sensor.

[0091] Optionally, the fault information determination module 310 comprises: a fault type determination sub-module configured to determine a fault type of the fault electronic device based on the fault processing request; a fault influence determination sub-module configured to determine a fault influence of the fault electronic device based on an association relationship between the fault type and the fault influence, wherein the association relationship is determined according to a connection relationship between the electronic devices in the thermal management module; and a fault level determination sub-module configured to determine a fault level of the fault electronic device based on the fault influence.

[0092] Optionally, the target fault processing plan determination module 330 comprises: a preliminary selected fault processing plan determination sub-module configured to determine a preliminary selected fault processing plan in the candidate fault processing plan according to the fault type in the fault information of the fault electronic device, and determine a plan level of the preliminary selected fault processing plan; and a target fault processing plan determination sub-module configured to determine a target fault processing plan in the preliminary selected fault processing plan based on the plan level and the fault level.

[0093] Optionally, the apparatus further comprises: a fault prompt information generation module configured to generate fault prompt information for the thermal management system according to the fault processing request after processing the fault processing request based on the target fault processing plan; and a system maintenance prompting module configured to perform thermal management system maintenance prompting based on the fault prompt information.

[0094] Optionally, the candidate fault handling plan of the thermal management module is constructed by determining the coupling relationship between the thermal management modules in the thermal management system, determining the connection relationship of the electronic devices in the thermal management module and the function of each electronic device in the thermal management module, constructing the candidate fault handling plan for each electronic device based on the coupling relationship, the connection relationship and the function, and constructing the candidate fault handling plan of the thermal management module based on the candidate fault handling plan of the electronic device.

[0095] Optionally, the thermal management system belongs to a pure electric vehicle or a hybrid electric vehicle.

[0096] In the technical solution of the present disclosure, the collection, storage, use, processing, transmission, provision and disclosure of the target road map and the user point selection operation are in line with relevant laws and regulations and do not violate public order and good customs.

[0097] Embodiment Four

[0098] Figure 4 is a structural schematic diagram of an electronic device provided by Embodiment Four of the present application, Figure 4 A structural schematic diagram of an electronic device 410 that can be used to implement the embodiments is shown. The electronic device 410 includes at least one processor 411, and a memory, such as a read-only memory (ROM) 512, a random access memory (RAM) 513, etc., which is communicatively connected to the at least one processor 411. The memory stores a computer program that can be executed by the at least one processor. The processor 411 can execute various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 412 or loaded from the storage unit 418 into the random access memory (RAM) 413. In the RAM 413, various programs and data required for the operation of the electronic device 410 can also be stored. The processor 411, the ROM 412 and the RAM 413 are connected to each other through a bus 414. An input / output (I / O) interface 415 is also connected to the bus 414.

[0099] A plurality of components in the electronic device 410 are connected to the I / O interface 415, including an input unit 416, such as a keyboard, a mouse, etc., an output unit 417, such as various types of displays, a loudspeaker, etc., a storage unit 418, such as a magnetic disk, an optical disk, etc., and a communication unit 419, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 419 allows the electronic device 410 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0100] The processor 411 can be various general-purpose and / or special-purpose processing components having processing and computing capabilities. Some examples of the processor 411 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, and the like. The processor 411 performs various methods and processes described above, such as the electric vehicle thermal management system fault handling method.

[0101] In some embodiments, the electric vehicle thermal management system fault handling method can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 418. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 410 via the ROM 412 and / or the communication unit 419. When the computer program is loaded onto the RAM 413 and executed by the processor 411, one or more steps of the electric vehicle thermal management system fault handling method described above can be performed. Alternatively, in other embodiments, the processor 411 can be configured to perform the electric vehicle thermal management system fault handling method by any other appropriate means, such as by means of firmware.

[0102] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a complex programmable logic device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0103] Computer programs used to implement the methods of the application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed, implements the functions / acts specified in the flowcharts and / or block diagrams. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, and partially on a machine or a remote machine or a server.

[0104] In the context of this application, a computer readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer readable storage medium can be a machine readable signal medium. More specific examples of a machine readable storage medium will include one or more lines of a program of instructions in a transitory signal form, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0105] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0106] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), blockchain networks, and the Internet.

[0107] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0108] It should be understood that the various forms of flow shown above can be reordered, added to, or have steps deleted. For example, the steps described in this application can be performed in parallel, in series, or in a different order, as long as the desired results of the technical solutions of this application can be achieved, and this application does not limit herein.

[0109] The above detailed description does not constitute a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A fault handling method for an electric vehicle thermal management system, characterized in that, The method comprises: determining a fault electronic device in response to a fault handling request sent by a thermal management system, and determining fault information of the fault electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices; determining a thermal management module to which the fault electronic device belongs in the thermal management system, and taking the thermal management module as a target thermal management module; determining a target fault handling plan in candidate fault handling plans of the target thermal management module based on the fault information of the fault electronic device, and handling the fault handling request based on the target fault handling plan; wherein the determining of the target fault handling plan in the candidate fault handling plans of the target thermal management module based on the fault information of the fault electronic device comprises: determining a preliminary fault handling plan in the candidate fault handling plans according to a fault type in the fault information of the fault electronic device, and determining a plan level of the preliminary fault handling plan; determining the target fault handling plan in the preliminary fault handling plan based on the plan level and a fault level in the fault information; wherein the determining of the target fault handling plan in the preliminary fault handling plan based on the plan level and the fault level comprises: taking the fault level as a reference level, and selecting a preliminary fault handling plan with a plan level lower than the fault level; sorting the selected preliminary fault handling plans based on the plan level, and selecting the one with the lowest plan level as the target fault handling plan.

2. The method of claim 1, wherein, The thermal management module comprises at least one of a battery thermal management module, a motor thermal management module and an air conditioner thermal management module; and the electronic device comprises at least one of a vehicle controller, an air conditioner controller, a water pump, a water valve, a fan and a temperature sensor.

3. The method of claim 1, wherein, The determining of the fault information of the fault electronic device comprises: determining a fault type of the fault electronic device based on the fault handling request; determining a fault influence of the fault electronic device based on an association relationship between the fault type and the fault influence; wherein the association relationship is determined according to a connection relationship between electronic devices in the thermal management module; determining a fault level of the fault electronic device based on the fault influence.

4. The method of claim 1, wherein, After handling the fault handling request based on the target fault handling plan, the method further comprises: generating fault prompt information for the thermal management system according to the fault handling request; performing a thermal management system maintenance prompt based on the fault prompt information.

5. The method of claim 1, wherein, The candidate fault handling plans of the thermal management module are constructed in the following manner: determining a coupling relationship between each thermal management module in the thermal management system; determining a connection relationship between electronic devices in the thermal management module, and a function of each electronic device in the thermal management module; constructing candidate fault handling plans for each electronic device based on the coupling relationship, the connection relationship and the function; constructing the candidate fault handling plans of the thermal management module based on the candidate fault handling plans of the electronic devices.

6. The method of claim 1, wherein, The thermal management system belongs to a pure electric vehicle or a hybrid electric vehicle.

7. An electric vehicle thermal management system fault handling apparatus, characterized by, The device comprises: A fault information determination module is configured to determine a fault electronic device in response to a fault handling request sent by a thermal management system, and determine fault information of the fault electronic device; wherein the thermal management system comprises at least two thermal management modules; the thermal management module comprises at least two electronic devices; A target thermal management module determination module is configured to determine a thermal management module to which the fault electronic device belongs in the thermal management system, and take the thermal management module as a target thermal management module; A target fault handling plan determination module is configured to determine a target fault handling plan in candidate fault handling plans of the target thermal management module based on the fault information of the fault electronic device, and handle the fault handling request based on the target fault handling plan; The target fault handling plan determination module comprises: a preliminary fault handling plan determination submodule configured to determine a preliminary fault handling plan in the candidate fault handling plans according to a fault type in the fault information of the fault electronic device, and determine a plan level of the preliminary fault handling plan; and a target fault handling plan determination submodule configured to determine a target fault handling plan in the preliminary fault handling plan based on the plan level and a fault level in the fault information. The target fault handling plan determination submodule is configured to determine a target fault handling plan in the preliminary fault handling plan based on the plan level and a fault level in the fault information.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the electric vehicle thermal management system fault handling method of any one of claims 1-6.

9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the computer program to implement the electric vehicle thermal management system fault handling method of any one of claims 1-6.

Images