Thermal management system control method and device, medium and vehicle

Abstract

The invention relates to a thermal management system control method and device, a medium and a vehicle. The heat management system control method comprises the steps that the heat exchange demand condition of target heat exchange objects is monitored, and the target heat exchange objects comprise at least one heat exchange object; when it is determined that the heat management system is in a target heat exchange working condition based on the heat exchange demand condition of the target heat exchange object, a heat exchange mode corresponding to the target heat exchange working condition is determined, the target heat exchange working condition shows that one or more heat exchange objects have heat exchange demands, and the heat exchange mode comprises cooling liquid heat exchange and / or air heat exchange; and on the basis of a control strategy in the heat exchange mode, a target controlled component is controlled to adjust target parameters, the target parameters are used for reflecting whether the heat exchange object reaches the required temperature or not, and the control strategy is used for making the heat exchange object reach the required temperature. According to the technical scheme, heat management system control can be efficiently achieved.

Description

Technical Field

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

[0002] In recent years, with the gradual popularization of new energy vehicles, the performance of new energy vehicles has also been significantly improved. The thermal management system of new energy vehicles is a system that manages the heat of new energy vehicles. The operation of the thermal management system also has a great impact on the range of new energy vehicles. In order to make the range of new energy vehicles longer and longer, the requirements for the thermal management system of new energy vehicles are also getting higher and higher.

[0003] At present, the cooling and heating requirements of the engine, battery and cabin can be met by controlling the controlled components such as water pumps, integrated valves, cooling fans and air intake grilles, thereby achieving thermal management of new energy vehicles. How to efficiently achieve thermal management system control has always been a technical issue studied in the industry. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a thermal management system control method, device, medium and vehicle to efficiently realize thermal management system control.

[0005] The present disclosure provides a thermal management system control method, comprising:

[0006] Monitoring heat exchange demand of a target heat exchange object, wherein the target heat exchange object includes at least one heat exchange object;

[0007] When it is determined that the thermal management system is in a target heat exchange condition based on the heat exchange demand of the target heat exchange object, a heat exchange mode corresponding to the target heat exchange condition is determined, wherein the target heat exchange condition indicates that one or more of the heat exchange objects have a heat exchange demand, and the heat exchange mode includes coolant heat exchange and / or air heat exchange;

[0008] Based on the control strategy under the heat exchange mode, the target controlled component is controlled to adjust the target parameter, wherein the target parameter is used to reflect whether the heat exchange object reaches the required temperature, and the control strategy is used to make the heat exchange object reach the required temperature.

[0009] In the present disclosure, in the case where a heat exchange mode corresponds to multiple control modes, based on the control strategy under the heat exchange mode, controlling the target controlled component to adjust the target parameter includes:

[0010] Determining a control mode corresponding to the heat exchange method;

[0011] Based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, wherein different control strategies correspond to different control modes.

[0012] In the present disclosure, the target heat exchange condition is that the engine has a heat exchange demand, and the heat exchange method is coolant heat exchange; based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, including:

[0013] In response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature;

[0014] In response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the difference between the water inlet temperature and the water outlet temperature of the engine and the target inlet and outlet temperature difference, the speed of the water pump is controlled to adjust the temperature difference between the water outlet and the water inlet of the engine, so as to adjust the difference between the water inlet temperature and the water outlet temperature of the engine to the target inlet and outlet temperature difference;

[0015] In response to the normal control mode, the speed of the water pump is controlled to the minimum speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine; if the integrated valve is fully open and the water outlet temperature of the engine is greater than the target water outlet temperature, then based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the speed of the water pump is controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature.

[0016] In the present disclosure, the target heat exchange condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is coolant heat exchange; based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, including:

[0017] In response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature;

[0018] In response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the difference between the water inlet temperature and the water outlet temperature of the engine and the target inlet and outlet temperature difference, the speed of the water pump is controlled to adjust the temperature difference between the water outlet and the water inlet of the engine, so as to adjust the difference between the water inlet temperature and the water outlet temperature of the engine to the target inlet and outlet temperature difference;

[0019] In response to the normal control mode, the speed of the water pump is controlled to a target speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine; if the integrated valve is fully open and the water outlet temperature of the engine is greater than the target water outlet temperature, the speed of the water pump is controlled to adjust the water outlet temperature of the engine based on the difference between the water outlet temperature of the engine and the target water outlet temperature; if the speed of the water pump is less than the target speed and the water outlet temperature of the engine is less than the target water outlet temperature, the speed of the water pump is controlled to a minimum speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature, wherein the target speed is the sum of the battery demand speed, the cabin demand speed, the temperature difference compensation speed between the water pump outlet and the radiator outlet, the integrated valve opening compensation speed, and the exhaust gas recirculation valve opening compensation speed.

[0020] In the present disclosure, the priorities of the enhanced heat dissipation control mode, the temperature difference control mode and the normal control mode decrease in sequence.

[0021] In the present disclosure, the target heat exchange condition is that the engine has a heat exchange demand, or the target heat exchange condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is air heat exchange; based on the control strategy corresponding to the control mode, controlling the target controlled component to adjust the target parameter includes:

[0022] In response to the enhanced heat dissipation control mode, based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan and the opening of the air intake grille are controlled to adjust the water inlet temperature of the engine, so as to adjust the water inlet temperature of the engine to the target water inlet temperature;

[0023] In response to the normal control mode, the speed of the cooling fan is controlled to the minimum speed or 0, and based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the opening of the air intake grille is controlled to adjust the water inlet temperature of the engine; if the air intake grille is fully open and the water inlet temperature of the engine is greater than the target water inlet temperature, then based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan is controlled to adjust the water inlet temperature of the engine, so as to adjust the water inlet temperature of the engine to the target water inlet temperature.

[0024] In the present disclosure, the target heat exchange condition is that at least one of the battery and the cabin has a heat exchange demand, and the heat exchange method is coolant heat exchange; based on the control strategy under the heat exchange method, the target controlled component is controlled to adjust the target parameter, including:

[0025] The opening of the integrated valve is controlled to fully open the branch of the warm air circuit, and the speed of the water pump is controlled to a target speed to adjust the coolant flow of the warm air circuit, wherein the target speed is the sum of the battery demand speed, the cabin demand speed and the temperature difference compensation speed between the water pump outlet and the radiator outlet.

[0026] The present disclosure provides a thermal management system control device, comprising:

[0027] A heat exchange demand monitoring module, used to monitor the heat exchange demand of a target heat exchange object, wherein the target heat exchange object includes at least one heat exchange object;

[0028] A heat exchange mode determination module, for determining a heat exchange mode corresponding to the target heat exchange condition when it is determined that the thermal management system is in a target heat exchange condition based on the heat exchange demand of the target heat exchange object, wherein the target heat exchange condition indicates that one or more of the heat exchange objects have a heat exchange demand, and the heat exchange mode includes coolant heat exchange and / or air heat exchange;

[0029] The component control module is used to control the target controlled component to adjust the target parameter based on the control strategy under the heat exchange mode, wherein the target parameter is used to reflect whether the heat exchange object reaches the required temperature, and the control strategy is used to make the heat exchange object reach the required temperature.

[0030] The present disclosure also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a program or instruction, wherein the program or instruction enables a computer to execute the steps of any of the above methods.

[0031] The present disclosure also provides a vehicle, comprising:

[0032] one or more processors;

[0033] A memory for storing one or more programs or instructions;

[0034] The processor is used to execute the steps of any of the above methods by calling the program or instruction stored in the memory.

[0035] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0036] The technical solution provided by the embodiment of the present disclosure sets a corresponding control strategy for the heat exchange method under the target heat exchange condition. In this way, when the thermal management system is in the target heat exchange condition, the control strategy under the heat exchange method corresponding to the target heat exchange condition is utilized to control the target controlled component to adjust the target parameters, so that the heat exchange object can reach the required temperature, and efficient heat exchange of the heat exchange object can be achieved, thereby efficiently realizing the thermal management system control. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 A flow chart of a thermal management system control method provided by an embodiment of the present disclosure;

[0040] Figure 2 A structural block diagram of a thermal management system control device provided in an embodiment of the present disclosure;

[0041] Figure 3 A schematic diagram of the structure of a vehicle provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0044] Figure 1This is a flow chart of a thermal management system control method provided by an embodiment of the present disclosure. This method is applicable to the case of thermal management of a whole vehicle. This method can be executed by a thermal management system control device, and the thermal management system control device can be implemented in software and / or hardware. Figure 1 As shown, the method comprises the following steps:

[0045] S110, monitoring the heat exchange demand of the target heat exchange object.

[0046] Among them, the target heat exchange object includes at least one heat exchange object. Exemplarily, the target heat exchange object includes at least one of an engine, a battery and a cabin. The heat exchange demand of the target heat exchange object refers to whether the target heat exchange object has a heat exchange demand. Specifically, the operating status of the engine and the temperature of the engine are obtained, and it can be determined whether the engine is working (running) according to the operating status of the engine. For example, when the operating status of the engine is 0x2:CRANK||0x3:RUN||0x4:STALL, it can be determined that the engine is working, and the working performance of the engine is affected by the temperature of the engine. Therefore, it can be judged whether the engine has a heat exchange (cooling) demand based on the operating status of the engine and the temperature of the engine. Exemplarily, when it is determined that the engine is working based on the operating status of the engine, and the temperature of the engine exceeds the optimal operating temperature range, it is determined that the engine has a heat exchange demand. In addition, when the air conditioning heating mode request is engine waste heat heating and water side heater heating is prohibited or water side heater heating and engine waste heat heating is allowed, or a water pump request is received when mixed air is supplied to the passenger compartment, or the air conditioning heating mode request is water side heater heating and engine waste heat heating is allowed, and it changes to non-water side heater heating and engine waste heat heating is allowed and the water side heater is working, there is a heat exchange (heating) demand in the driving cabin, otherwise there is no heat exchange (heating) demand in the driving cabin. When the battery heating mode request is engine waste heat heating and water side heater heating is prohibited or water side heater heating and engine waste heat heating is prohibited, or the battery heating mode request is water side heater heating and engine waste heat heating is prohibited, and it changes to water side heater heating and engine waste heat heating is prohibited and the water side heater is working, there is a heat exchange (heating) demand in the battery, otherwise there is no heat exchange (heating) demand in the battery.

[0047] S120. When it is determined that the thermal management system is in a target heat exchange operating condition based on the heat exchange demand of the target heat exchange object, a heat exchange mode corresponding to the target heat exchange operating condition is determined.

[0048] The target heat exchange condition indicates that one or more heat exchange objects have a heat exchange demand, and the heat exchange method includes coolant heat exchange and / or air heat exchange.

[0049] In the disclosed embodiment, the target heat exchange conditions can be divided into three types. The specific target heat exchange conditions include the conditions where only the engine has a heat exchange demand, where only at least one of the battery and the cabin has a heat exchange demand, and where at least one of the battery and the cabin and the engine have a heat exchange demand. In the disclosed embodiment, the target heat exchange conditions can be divided into the above three types. When the thermal management system is in any target heat exchange condition, the control strategy under the heat exchange mode corresponding to the target heat exchange condition can be used to control the target controlled component to adjust the target parameter. Therefore, by setting fewer heat exchange conditions, while meeting the heat exchange demand of the whole vehicle, the control of thermal management is simplified, thereby reducing the occurrence rate of software program errors and ensuring the working efficiency and safe operation of the vehicle. The target heat exchange condition can be determined according to the heat exchange demand of the target heat exchange object. After the target heat exchange condition is determined, the heat exchange mode suitable for the target heat exchange condition can be determined. For example, when the target heat exchange condition is a heat exchange condition where only the engine has a heat exchange demand, the heat exchange method can be coolant heat exchange, air heat exchange, or coolant heat exchange and air heat exchange, that is, two heat exchange methods are used at the same time; when the target heat exchange condition is a heat exchange condition where only at least one of the battery and the cabin has a heat exchange demand, the heat exchange method is coolant heat exchange; and when the target heat exchange condition is a heat exchange condition where at least one of the battery and the cabin and the engine have a heat exchange demand, the heat exchange method can be coolant heat exchange, air heat exchange, or coolant heat exchange and air heat exchange, that is, two heat exchange methods are used at the same time. The present application can set the heat exchange method under the target heat exchange condition, that is, after determining the target heat exchange condition, the heat exchange method can be obtained according to the setting.

[0050] S130. Based on the control strategy under the heat exchange mode, control the target controlled component to adjust the target parameter.

[0051] Among them, the target parameter is used to reflect whether the heat exchange object reaches the required temperature, and the control strategy is used to make the heat exchange object reach the required temperature.

[0052] In the thermal management system control system, the water pump, integrated valve, cooling fan and air intake grille can be controlled to meet the cooling and heating requirements of the engine, battery and cabin. Accordingly, the target controlled component may include at least one of the water pump, integrated valve, cooling fan and air intake grille. Exemplarily, when the heat exchange mode is coolant heat exchange, the target controlled component may include a water pump and / or an integrated valve; when the heat exchange mode is air heat exchange, the target controlled component may include a cooling fan and / or an air intake grille. The above-mentioned target controlled component can be specifically determined by the control strategy set under the heat exchange mode. The target parameter may include the engine water outlet temperature (i.e., the engine outlet water temperature, which can be adjusted by the water pump and / or the integrated valve), the temperature difference between the engine water outlet and the water inlet (i.e., the difference between the engine outlet water temperature and the engine inlet water temperature, which can be adjusted by the water pump) or the engine water inlet temperature (i.e., the engine inlet water temperature, which can be adjusted by the cooling fan and / or the air intake grille). In addition, the integrated valve involved in the embodiment of the present disclosure is at least an integrated valve of the engine water valve and the warm air circuit water valve.

[0053] Based on the above technical solution, the target heat exchange condition, the degree of heat exchange demand and the power consumption of the thermal management system control system can be comprehensively considered, and one or more control modes can be set correspondingly under the heat exchange method corresponding to the target heat exchange condition. When the control modes under the same heat exchange method corresponding to the same target heat exchange condition are different, the control strategy is also different.

[0054] Accordingly, in the embodiment of the present disclosure, when a heat exchange method corresponds to multiple control modes, based on the control strategy under the heat exchange method, the target controlled component is controlled to adjust the target parameter, including: determining the control mode corresponding to the heat exchange method; based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, wherein different control modes under a heat exchange method correspond to different control strategies. In this way, when the degree of heat exchange demand is targeted, the effect of rapid heat exchange of the target heat exchange object is achieved, and when the power consumption of the thermal management system system is controlled, the effect of energy saving is achieved.

[0055] Specifically, in some embodiments, the target heat exchange condition is that the engine has a heat exchange demand, and the heat exchange method is coolant heat exchange; based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameters, including: in response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine to adjust the water outlet temperature of the engine to the target water outlet temperature; in response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the water inlet temperature and the water outlet temperature of the engine The difference between the engine water outlet temperature and the target inlet temperature difference is used to control the speed of the water pump to adjust the temperature difference between the engine water outlet and the water inlet, so as to adjust the difference between the engine water inlet temperature and the water outlet temperature to the target inlet temperature difference; in response to the ordinary control mode, the speed of the water pump is controlled to the minimum speed, and based on the difference between the engine water outlet temperature and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the engine water outlet temperature; if the integrated valve is fully opened and the engine water outlet temperature is greater than the target water outlet temperature, the speed of the water pump is controlled to adjust the engine water outlet temperature based on the difference between the engine water outlet temperature and the target water outlet temperature, so as to adjust the engine water outlet temperature to the target water outlet temperature. Among them, the priority of the enhanced heat dissipation control mode, the temperature difference control mode and the ordinary control mode is reduced in sequence.

[0056] In the above embodiment, only the engine has a heat exchange demand (generally speaking, the engine has a cooling demand). At this time, the engine can be subjected to coolant heat exchange. According to the above target heat exchange conditions and heat exchange methods, three control modes can be set, namely, enhanced heat dissipation control mode, temperature difference control mode and ordinary control mode, and the degree of heat exchange demand in the three control modes decreases in sequence. When the enhanced heat dissipation control mode is triggered, it means that the engine is in urgent need of heat exchange. At this time, the opening of the integrated valve and the speed of the water pump are closed-loop controlled at the same time to jointly adjust the water outlet temperature of the engine so that the water outlet temperature of the engine quickly reaches the target water outlet temperature (i.e., the required temperature of the engine outlet). When the temperature difference control mode is triggered, it means that the temperature difference between the water outlet and the water inlet of the engine exceeds the maximum temperature difference for stable combustion of the engine. At this time, the opening of the integrated valve is first controlled in a closed loop (limiting the maximum value of the coolant flow through the engine) to mainly adjust the water outlet temperature of the engine. Under the condition that the water outlet temperature of the engine meets the heat exchange requirements of the engine, the speed of the water pump is then controlled in a closed loop to adjust the temperature difference between the water outlet and the water inlet of the engine to reduce the temperature difference between the water outlet and the water inlet of the engine to the temperature difference range for stable combustion of the engine. In addition, when the normal control mode is triggered, the energy-saving control of the thermal management system control system is mainly used, so the speed of the water pump should be reduced as much as possible to reduce power consumption. At this time, the speed of the water pump can be first controlled in an open loop to the minimum speed (the minimum speed when the water pump can provide coolant flow, that is, the minimum working speed), and then the opening of the integrated valve can be controlled in a closed loop to adjust the water outlet temperature of the engine; if the integrated valve is fully open but the water outlet temperature of the engine is still too high, the speed of the water pump can be controlled in a closed loop to further reduce the water outlet temperature of the engine so that the water outlet temperature reaches the target water outlet temperature; if only the opening of the integrated valve can be controlled in a closed loop to make the water outlet temperature of the engine reach the target water outlet temperature, the water pump can maintain the minimum speed. In this way, while meeting the heat exchange requirements of the engine, the speed of the water pump can be reduced to the greatest extent, thereby achieving energy saving effects. In addition, by setting the priority, the setting of the triggering conditions of each control mode can be made more relaxed. When multiple control modes are triggered at the same time, executing the control strategy corresponding to the control mode with the highest priority according to the priority can ensure the stable operation of the heat exchange object to the greatest extent.

[0057] Specifically, the closed-loop control adopts a proportional-integral control method, and the open-loop control adopts a table lookup method. In the enhanced heat dissipation control mode, the opening of the integrated valve is controlled in a closed loop to adjust the water outlet temperature of the engine, including: based on the difference between the engine water outlet temperature and the target water outlet temperature, the opening of the integrated valve is controlled in a proportional-integral manner so that the engine water outlet temperature is equal to the target water outlet temperature. The speed of the water pump is controlled in a closed loop to adjust the water outlet temperature of the engine, including: based on the difference between the engine water outlet temperature and the target water outlet temperature and the difference between the calibration temperature, the speed of the water pump is controlled in a proportional-integral manner, and the calibration temperature is used to reduce the final speed of the water pump when the water pump and the integrated valve jointly control the engine water outlet temperature, so as to achieve energy saving effect. In the temperature difference control mode, the opening of the integrated valve is controlled in a closed loop to adjust the water outlet temperature of the engine, including: based on the difference between the engine water outlet temperature and the target water outlet temperature, the opening of the integrated valve is controlled in a proportional-integral manner. The speed of the water pump is controlled in a closed loop to adjust the temperature difference between the water outlet and the water inlet of the engine, including: based on the difference between the engine water inlet temperature and the water outlet temperature and the target inlet and outlet temperature difference, the speed of the water pump is proportionally and integrally controlled so that the difference between the engine water inlet temperature and the water outlet temperature is equal to the target inlet and outlet temperature difference. In the normal control mode, the opening of the integrated valve is controlled in a closed loop to adjust the water outlet temperature of the engine, including: based on the difference between the engine water outlet temperature and the target water outlet temperature, the opening of the integrated valve is proportionally and integrally controlled. The speed of the water pump is controlled in a closed loop to adjust the water outlet temperature of the engine, including: based on the difference between the engine water outlet temperature and the target water outlet temperature, the speed of the water pump is proportionally and integrally controlled. The speed of the water pump is controlled in an open loop to the minimum speed, including: based on the relationship table between the coolant flow rate and the water pump speed, the minimum speed is obtained by looking up the table, and the speed of the water pump is controlled to the minimum speed.

[0058] Exemplarily, the running state of the engine and the temperature of the engine are obtained, and whether the engine is working (running) can be determined according to the running state of the engine. For example, when the running state of the engine is 0x2:CRANK||0x3:RUN||0x4:STALL, it can be determined that the engine is working, and the working performance of the engine is affected by the temperature of the engine. Therefore, it can be judged whether the engine has a heat exchange demand based on the running state of the engine and the temperature of the engine. For example, when it is determined that the engine is working based on the running state of the engine, and the temperature of the engine exceeds the optimal operating temperature range, it is determined that the engine has a heat exchange demand. In the case of a heat exchange demand for the engine, if the engine inlet and outlet temperature difference control mode is enabled, the temperature difference control mode is triggered; if the engine enhanced heat dissipation control mode is enabled, and the engine inlet and outlet temperature difference control mode is not enabled, the enhanced heat dissipation control mode is triggered; if the open-loop control request of the integrated valve (the integrated valve of the engine and the warm air circuit, such as a six-way valve) under the heat exchange demand of the engine is true, and the engine inlet and outlet temperature difference control mode is not enabled, the normal control mode is triggered. Among them, if the engine is working, and the engine temperature is greater than the engine target temperature, and the difference between the engine water outlet temperature and the engine water inlet temperature is greater than or equal to the temperature stability threshold, then the engine inlet and outlet temperature difference control mode is enabled, wherein the temperature stability threshold is the critical value between stable combustion and unstable combustion of the engine, and when the difference between the engine water outlet temperature and the engine water inlet temperature is less than the temperature stability threshold, the engine is stably burning; if the engine water outlet temperature is greater than the target water outlet temperature and the engine water outlet temperature change rate is greater than the temperature change rate threshold, or the engine water outlet temperature change rate is greater than 0 and the difference between the engine water outlet temperature and the target water outlet temperature is greater than the high temperature threshold, then the engine inlet and outlet temperature difference control mode is not enabled, wherein the temperature change rate threshold is used to characterize that the temperature rises too fast, and the high temperature threshold is used to characterize that the temperature is too high. If both of the above two conditions are met, the engine inlet and outlet temperature difference control mode is not enabled, that is, the priority of the engine inlet and outlet temperature difference control mode not being enabled is higher than the priority of the engine inlet and outlet temperature difference control mode being enabled. If the engine water outlet temperature is greater than the target water outlet temperature and the engine water outlet temperature change rate is greater than the temperature change rate threshold, or the engine water outlet temperature change rate is greater than 0 and the difference between the engine water outlet temperature and the target water outlet temperature is greater than the high temperature threshold, then the engine enhanced heat dissipation control mode is enabled; if the engine inlet and outlet temperature difference control mode is enabled, or the integrated valve open-loop control request under the condition that only the engine has a heat exchange demand is true, or the integrated valve open-loop control request under the condition that at least one of the battery and the cabin and the engine have a heat exchange demand at the same time is true, then the engine enhanced heat dissipation control mode is not enabled.

[0059] In some embodiments, the target heat exchange operating condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is coolant heat exchange; based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, including: in response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature; in response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the difference between the water inlet temperature and the water outlet temperature of the engine and the target inlet and outlet temperature difference, the speed of the water pump is controlled to adjust the temperature difference between the water outlet and the water inlet of the engine, so as to adjust the difference between the water inlet temperature and the water outlet temperature of the engine to the target inlet and outlet temperature difference; in response to the normal Control mode, control the speed of the water pump to the target speed, and control the opening of the integrated valve to adjust the water outlet temperature of the engine based on the difference between the water outlet temperature of the engine and the target water outlet temperature; if the integrated valve is fully open and the water outlet temperature of the engine is greater than the target water outlet temperature, then control the speed of the water pump to adjust the water outlet temperature of the engine based on the difference between the water outlet temperature of the engine and the target water outlet temperature; if the speed of the water pump is less than the target speed and the water outlet temperature of the engine is less than the target water outlet temperature, control the speed of the water pump to the minimum speed, and control the opening of the integrated valve to adjust the water outlet temperature of the engine based on the difference between the water outlet temperature of the engine and the target water outlet temperature, so as to adjust the water outlet temperature of the engine to the target water outlet temperature, wherein the target speed is the sum of the battery demand speed, the cabin demand speed, the temperature difference compensation speed between the water pump outlet and the radiator outlet, the integrated valve opening compensation speed, and the exhaust gas recirculation valve opening compensation speed. Among them, the priority of the enhanced heat dissipation control mode, the temperature difference control mode and the ordinary control mode decreases in sequence.

[0060] Specifically, the closed-loop control adopts a proportional-integral control method, and the open-loop control adopts a table lookup method. Among them, the closed-loop control method for the integrated valve and the water pump in the three control modes is the same as the aforementioned embodiment, and will not be repeated here. The difference is that in this embodiment, the speed of the water pump is controlled to the target speed, including: according to the relationship table of the outlet temperature of the water side heater and the required speed of the battery, the battery required speed is obtained by looking up the table; according to the relationship table of the outlet temperature of the water side heater and the required speed of the cabin, the required speed of the cabin is obtained by looking up the table; according to the relationship table of the temperature difference between the outlet of the water pump and the outlet of the radiator and the compensation speed, the temperature difference compensation speed between the outlet of the water pump and the outlet of the radiator is obtained by looking up the table; according to the relationship table of the opening of each valve and the compensation speed, the integrated valve opening compensation speed and the exhaust gas recirculation valve opening compensation speed are obtained by looking up the table; thereby the target speed is obtained by the sum of the table values; the speed of the water pump is controlled to the target speed.

[0061] In the above embodiment, at least one of the battery and the cabin and the engine all have heat exchange requirements (for example, the battery has heating requirements, the cabin has heating requirements, and the engine has cooling requirements). At this time, coolant heat exchange can be performed on at least one of the battery and the cabin and the engine. Different from the control strategy of only performing coolant heat exchange on the engine, when the normal control mode is triggered, in order to ensure the minimum flow requirement of each branch, the speed of the water pump is first open-loop controlled to be the sum of the battery demand speed, the cabin demand speed, the temperature difference compensation speed between the water pump outlet and the radiator outlet, the integrated valve opening compensation speed and the exhaust gas recirculation valve opening compensation speed, that is, the target speed, and the opening of the integrated valve is closed-loop controlled to adjust the engine's water outlet temperature; if the integrated valve is fully open but the engine outlet temperature is still too high, the speed of the water pump is closed-loop controlled to further reduce the engine outlet temperature so that the outlet temperature reaches the target outlet temperature. In addition, when the water outlet temperature of the engine is lower than the target water outlet temperature, if the speed of the water pump is lower than the target speed, the speed of the water pump is firstly open-loop controlled to the minimum speed, and then the opening of the integrated valve is closed-loop controlled to adjust the water outlet temperature of the engine. In this way, the speed of the water pump can be reduced to the maximum extent while meeting the heat exchange requirements of at least one of the battery and the cabin and the engine, thereby achieving energy saving effect.

[0062] In some embodiments, the target heat exchange condition is that the engine has a heat exchange demand, or the target heat exchange condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is air heat exchange; based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, including: in response to the enhanced heat dissipation control mode, based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan and the opening of the air intake grille are controlled to adjust the water inlet temperature of the engine to the target water inlet temperature; in response to the normal control mode, the speed of the cooling fan is controlled to the minimum speed or 0, and based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the opening of the air intake grille is controlled to adjust the water inlet temperature of the engine; if the air intake grille is fully open and the water inlet temperature of the engine is greater than the target water inlet temperature, then based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan is controlled to adjust the water inlet temperature of the engine to the target water inlet temperature. Among them, the priority of the enhanced heat dissipation control mode is higher than the priority of the normal control mode.

[0063] In the above embodiments, only the engine has a heat exchange demand, or at least one of the battery and the cabin and the engine all have a heat exchange demand. In this case, air heat exchange can be performed on the target heat exchange object. Since the battery and the cabin do not need to use air heat exchange, when the target heat exchange object includes at least one of the battery and the cabin and the engine, air heat exchange is actually performed on the engine, so that the corresponding control strategy is the same as the control strategy when the target heat exchange object is the engine. Specifically, when the enhanced heat dissipation control mode is triggered, the speed of the cooling fan and the opening of the air intake grille are closed-loop controlled at the same time, and the water inlet temperature of the engine is jointly adjusted so that the water inlet temperature of the engine quickly reaches the target water inlet temperature (i.e., the required temperature of the engine water inlet). When the normal control mode is triggered, the energy-saving control of the thermal management system control system is mainly used, so the speed of the cooling fan should be reduced as much as possible to reduce power consumption. At this time, the speed of the cooling fan can be first controlled in an open loop to the minimum speed (the minimum speed when the cooling fan can provide air volume, that is, the minimum working speed) or 0, and then the opening of the air intake grille can be controlled in a closed loop to adjust the water inlet temperature of the engine; if the air intake grille is fully open but the water inlet temperature of the engine is still too high, the speed of the cooling fan can be controlled in a closed loop to further reduce the water inlet temperature of the engine so that the water inlet temperature reaches the target water inlet temperature; if only the opening of the air intake grille can make the water inlet temperature of the engine reach the target water inlet temperature, the cooling fan can maintain the minimum speed or 0. In this way, while meeting the heat exchange requirements of the target heat exchange object, the speed of the cooling fan can be reduced to the greatest extent, thereby achieving energy saving.

[0064] Specifically, the closed-loop control adopts a proportional-integral control method, and the open-loop control adopts a table lookup method. In the enhanced heat dissipation control mode, the speed of the cooling fan is controlled in a closed loop to adjust the water inlet temperature of the engine, including: based on the difference between the engine water inlet temperature and the target water inlet temperature and the difference between the calibrated temperature, the speed of the cooling fan is controlled in a proportional-integral manner. The calibrated temperature is used to reduce the final speed of the cooling fan when the cooling fan and the air intake grille jointly control the engine water inlet temperature, so as to achieve energy saving. In the normal control mode, the speed of the cooling fan is controlled in a closed loop to adjust the water inlet temperature of the engine, including: based on the difference between the engine water inlet temperature and the target water inlet temperature, the speed of the cooling fan is controlled in a proportional-integral manner. In the above two control modes, the opening of the air intake grille is controlled in a closed loop to adjust the water inlet temperature of the engine, including: based on the difference between the engine water inlet temperature and the target water inlet temperature, the opening of the air intake grille is controlled in a proportional-integral manner.

[0065] The above-mentioned embodiments use closed-loop control to control the target heat exchange object. The characteristic of closed-loop control is that it can make the output of the system meet the expected requirements. Therefore, it can achieve precise control of the target controlled components, make the target parameters more stable, reduce the calibration work during open-loop control, and reduce the calibration cost.

[0066] In some embodiments, the target heat exchange condition is that at least one of the battery and the cabin has a heat exchange demand, and the heat exchange method is coolant heat exchange; based on the control strategy under the heat exchange method, the target controlled component is controlled to adjust the target parameter, including: controlling the opening of the integrated valve to fully open the branch of the warm air circuit, and controlling the speed of the water pump to the target speed to adjust the coolant flow of the warm air circuit, wherein the target speed is the sum of the battery demand speed, the cabin demand speed, and the temperature difference compensation speed between the water pump outlet and the radiator outlet. In this embodiment, when at least one of the battery and the cabin has a heat exchange demand, it is not necessary to perform air heat exchange on the battery and the cabin, so only the coolant heat exchange method is used to perform heat exchange on at least one of the battery and the cabin. At this time, the engine does not have a heat exchange demand, so it is only necessary to control the opening of the integrated valve to fully open the branch of the warm air circuit, and the speed of the water pump meets the battery demand speed, the cabin demand speed, and the temperature difference compensation speed between the water pump outlet and the radiator outlet. In this way, the heating demand of the battery and / or the heating demand of the cabin can be met.

[0067] In summary, the thermal management system control method provided in the embodiment of the present disclosure sets a corresponding control strategy for the heat exchange method under the target heat exchange condition. In this way, when the thermal management system is in the target heat exchange condition, the control strategy under the heat exchange method corresponding to the target heat exchange condition is utilized to control the target controlled component to adjust the target parameters, so that the heat exchange object can reach the required temperature and efficient heat exchange of the heat exchange object can be achieved, thereby efficiently realizing the thermal management system control.

[0068] Corresponding to the thermal management system control method provided by the embodiment of the present disclosure, the embodiment of the present disclosure also provides a thermal management system control device. Figure 2 A structural block diagram of a thermal management system control device provided in an embodiment of the present disclosure, such as Figure 2 As shown, the thermal management system control device includes:

[0069] A heat exchange demand monitoring module 21 is used to monitor the heat exchange demand of a target heat exchange object, where the target heat exchange object includes at least one heat exchange object;

[0070] A heat exchange mode determination module 22 is used to determine the heat exchange mode corresponding to the target heat exchange condition when the thermal management system is determined to be in the target heat exchange condition based on the heat exchange demand of the target heat exchange object, wherein the target heat exchange condition indicates that one or more heat exchange objects have a heat exchange demand, and the heat exchange mode includes coolant heat exchange and / or air heat exchange;

[0071] The component control module 23 is used to control the target controlled component to adjust the target parameter based on the control strategy under the heat exchange mode, wherein the target parameter is used to reflect whether the heat exchange object reaches the required temperature, and the control strategy is used to make the heat exchange object reach the required temperature.

[0072] In some embodiments, when one heat exchange mode corresponds to multiple control modes, the component control module 23 is used to:

[0073] Determine the control mode corresponding to the heat exchange method;

[0074] Based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, wherein different control strategies correspond to different control modes.

[0075] In some embodiments, the target heat exchange condition is that the engine has a heat exchange demand, and the heat exchange method is coolant heat exchange; the component control module 23 is specifically used for:

[0076] In response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature;

[0077] In response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the difference between the water inlet temperature and the water outlet temperature of the engine and the target inlet and outlet temperature difference, the speed of the water pump is controlled to adjust the temperature difference between the water outlet and the water inlet of the engine, so as to adjust the difference between the water inlet temperature and the water outlet temperature of the engine to the target inlet and outlet temperature difference;

[0078] In response to the normal control mode, the speed of the water pump is controlled to the minimum speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine; if the integrated valve is fully open and the water outlet temperature of the engine is greater than the target water outlet temperature, then based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the speed of the water pump is controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature.

[0079] In some embodiments, the target heat exchange condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is coolant heat exchange; the component control module 23 is specifically used for:

[0080] In response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature;

[0081] In response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the difference between the water inlet temperature and the water outlet temperature of the engine and the target inlet and outlet temperature difference, the speed of the water pump is controlled to adjust the temperature difference between the water outlet and the water inlet of the engine, so as to adjust the difference between the water inlet temperature and the water outlet temperature of the engine to the target inlet and outlet temperature difference;

[0082] In response to the normal control mode, the speed of the water pump is controlled to the target speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine; if the integrated valve is fully open and the water outlet temperature of the engine is greater than the target water outlet temperature, the speed of the water pump is controlled to adjust the water outlet temperature of the engine based on the difference between the water outlet temperature of the engine and the target water outlet temperature; if the speed of the water pump is less than the target speed and the water outlet temperature of the engine is less than the target water outlet temperature, the speed of the water pump is controlled to the minimum speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature, wherein the target speed is the sum of the battery demand speed, the cabin demand speed, the temperature difference compensation speed between the water pump outlet and the radiator outlet, the integrated valve opening compensation speed and the exhaust gas recirculation valve opening compensation speed.

[0083] In some embodiments, the priorities of the enhanced heat dissipation control mode, the temperature difference control mode, and the normal control mode decrease in sequence.

[0084] In some embodiments, the target heat exchange condition is that the engine has a heat exchange demand, or the target heat exchange condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is air heat exchange; the component control module 23 is specifically used for:

[0085] In response to the enhanced heat dissipation control mode, based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan and the opening of the air intake grille are controlled to adjust the water inlet temperature of the engine, so as to adjust the water inlet temperature of the engine to the target water inlet temperature;

[0086] In response to the normal control mode, the speed of the cooling fan is controlled to the minimum speed or 0, and based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the opening of the air intake grille is controlled to adjust the water inlet temperature of the engine; if the air intake grille is fully open and the water inlet temperature of the engine is greater than the target water inlet temperature, then based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan is controlled to adjust the water inlet temperature of the engine, so as to adjust the water inlet temperature of the engine to the target water inlet temperature.

[0087] In some embodiments, the priority of the enhanced heat dissipation control mode is higher than the priority of the normal control mode.

[0088] In some embodiments, the target heat exchange condition is that at least one of the battery and the cabin has a heat exchange demand, and the heat exchange method is coolant heat exchange; the component control module 23 is specifically used for:

[0089] The opening of the integrated valve is controlled to fully open the branch of the warm air circuit, and the speed of the water pump is controlled to the target speed to adjust the coolant flow of the warm air circuit, wherein the target speed is the sum of the battery demand speed, the cabin demand speed and the temperature difference compensation speed between the water pump outlet and the radiator outlet.

[0090] The thermal management system control device disclosed in the above embodiments can execute the thermal management system control method disclosed in the above embodiments, and has the same or corresponding beneficial effects, which will not be described again here to avoid repetition.

[0091] The embodiment of the present disclosure also provides a computer-readable storage medium, which stores a program or instruction, and the program or instruction enables a computer to execute the steps of any of the above methods.

[0092] Exemplarily, the program or instruction enables a computer to execute a thermal management system control method, the method comprising:

[0093] Monitoring heat exchange demand of a target heat exchange object, where the target heat exchange object includes at least one heat exchange object;

[0094] When it is determined that the thermal management system is in a target heat exchange condition based on the heat exchange demand of the target heat exchange object, a heat exchange mode corresponding to the target heat exchange condition is determined, wherein the target heat exchange condition indicates that one or more heat exchange objects have a heat exchange demand, and the heat exchange mode includes coolant heat exchange and / or air heat exchange;

[0095] Based on the control strategy under the heat exchange mode, the target controlled component is controlled to adjust the target parameter, wherein the target parameter is used to reflect whether the heat exchange object reaches the required temperature, and the control strategy is used to make the heat exchange object reach the required temperature.

[0096] Optionally, when executed by a computer processor, the computer executable instructions can also be used to execute the technical solution of any of the above-mentioned thermal management system control methods provided in the embodiments of the present disclosure to achieve corresponding beneficial effects.

[0097] Through the above description of the implementation methods, the technicians in the relevant field can clearly understand that the embodiments of the present disclosure can be implemented with the help of software and necessary general hardware, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the embodiments of the present disclosure is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the present disclosure.

[0098] The embodiment of the present disclosure also provides a vehicle, comprising: one or more processors; a memory for storing one or more programs or instructions; the processor calls the programs or instructions stored in the memory to execute the steps of any of the above methods to achieve corresponding beneficial effects.

[0099] Figure 3 Schematic diagram of the hardware structure of a vehicle provided in an embodiment of the present disclosure. Figure 3 As shown, the vehicle includes one or more processors 301 and memory 302 .

[0100] The processor 301 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the vehicle to perform desired functions.

[0101] The memory 302 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 301 may run the program instructions to implement the thermal management system control method of the embodiment of the present disclosure described above, and / or other desired functions. Various contents such as input signals, signal components, noise components, etc. may also be stored in the computer-readable storage medium.

[0102] In one example, the vehicle may further include: an input device 303 and an output device 304 , and these components are interconnected via a bus system and / or other forms of connection mechanisms (not shown).

[0103] In addition, the input device 303 may also include, for example, a keyboard, a mouse, and the like.

[0104] The output device 304 can output various information to the outside, including the determined distance information, direction information, etc. The output device 304 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, and the like.

[0105] Of course, to simplify, Figure 3 Only some of the components in the vehicle related to the present disclosure are shown, and components such as buses, input / output interfaces, etc. are omitted. In addition, the vehicle may further include any other appropriate components according to specific application scenarios.

[0106] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0107] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermal management system control method, It is characterized in that include: Monitoring heat exchange demand of a target heat exchange object, wherein the target heat exchange object includes at least one heat exchange object; When it is determined that the thermal management system is in a target heat exchange condition based on the heat exchange demand of the target heat exchange object, a heat exchange mode corresponding to the target heat exchange condition is determined, wherein the target heat exchange condition indicates that one or more of the heat exchange objects have a heat exchange demand, and the heat exchange mode includes coolant heat exchange and / or air heat exchange; Based on the control strategy under the heat exchange mode, the target controlled component is controlled to adjust the target parameter, wherein the target parameter is used to reflect whether the heat exchange object reaches the required temperature, and the control strategy is used to make the heat exchange object reach the required temperature.

2. The method according to claim 1, It is characterized in that In the case where one of the heat exchange modes corresponds to multiple control modes, controlling the target controlled component to adjust the target parameter based on the control strategy under the heat exchange mode includes: Determining a control mode corresponding to the heat exchange method; Based on the control strategy corresponding to the control mode, the target controlled component is controlled to adjust the target parameter, wherein different control strategies correspond to different control modes.

3. The method according to claim 2, It is characterized in that The target heat exchange condition is that the engine has a heat exchange demand, and the heat exchange method is coolant heat exchange; based on the control strategy corresponding to the control mode, controlling the target controlled component to adjust the target parameter includes: In response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature; In response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the difference between the water inlet temperature and the water outlet temperature of the engine and the target inlet and outlet temperature difference, the speed of the water pump is controlled to adjust the temperature difference between the water outlet and the water inlet of the engine, so as to adjust the difference between the water inlet temperature and the water outlet temperature of the engine to the target inlet and outlet temperature difference; In response to the normal control mode, the speed of the water pump is controlled to the minimum speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine; if the integrated valve is fully open and the water outlet temperature of the engine is greater than the target water outlet temperature, then based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the speed of the water pump is controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature.

4. The method according to claim 2, It is characterized in that The target heat exchange operating condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is coolant heat exchange; Based on the control strategy corresponding to the control mode, controlling the target controlled component to adjust the target parameter includes: In response to the enhanced heat dissipation control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve and the speed of the water pump are controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature; In response to the temperature difference control mode, based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, and based on the difference between the water inlet temperature and the water outlet temperature of the engine and the target inlet and outlet temperature difference, the speed of the water pump is controlled to adjust the temperature difference between the water outlet and the water inlet of the engine, so as to adjust the difference between the water inlet temperature and the water outlet temperature of the engine to the target inlet and outlet temperature difference; In response to the normal control mode, the speed of the water pump is controlled to a target speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine; if the integrated valve is fully open and the water outlet temperature of the engine is greater than the target water outlet temperature, the speed of the water pump is controlled to adjust the water outlet temperature of the engine based on the difference between the water outlet temperature of the engine and the target water outlet temperature; if the speed of the water pump is less than the target speed and the water outlet temperature of the engine is less than the target water outlet temperature, the speed of the water pump is controlled to a minimum speed, and based on the difference between the water outlet temperature of the engine and the target water outlet temperature, the opening of the integrated valve is controlled to adjust the water outlet temperature of the engine, so as to adjust the water outlet temperature of the engine to the target water outlet temperature, wherein the target speed is the sum of the battery demand speed, the cabin demand speed, the temperature difference compensation speed between the water pump outlet and the radiator outlet, the integrated valve opening compensation speed, and the exhaust gas recirculation valve opening compensation speed.

5. The method according to claim 3 or 4, It is characterized in that The priorities of the enhanced heat dissipation control mode, the temperature difference control mode and the normal control mode decrease in sequence.

6. The method according to claim 2, It is characterized in that The target heat exchange operating condition is that the engine has a heat exchange demand, or the target heat exchange operating condition is that at least one of the battery and the cabin and the engine have a heat exchange demand, and the heat exchange method is air heat exchange; Based on the control strategy corresponding to the control mode, controlling the target controlled component to adjust the target parameter includes: In response to the enhanced heat dissipation control mode, based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan and the opening of the air intake grille are controlled to adjust the water inlet temperature of the engine, so as to adjust the water inlet temperature of the engine to the target water inlet temperature; In response to the normal control mode, the speed of the cooling fan is controlled to the minimum speed or 0, and based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the opening of the air intake grille is controlled to adjust the water inlet temperature of the engine; if the air intake grille is fully open and the water inlet temperature of the engine is greater than the target water inlet temperature, then based on the difference between the water inlet temperature of the engine and the target water inlet temperature, the speed of the cooling fan is controlled to adjust the water inlet temperature of the engine, so as to adjust the water inlet temperature of the engine to the target water inlet temperature.

7. The method according to claim 1, It is characterized in that The target heat exchange operating condition is that at least one of the battery and the cabin has a heat exchange demand, and the heat exchange method is coolant heat exchange; Based on the control strategy under the heat exchange mode, controlling the target controlled component to adjust the target parameter includes: The opening of the integrated valve is controlled to fully open the branch of the warm air circuit, and the speed of the water pump is controlled to a target speed to adjust the coolant flow of the warm air circuit, wherein the target speed is the sum of the battery demand speed, the cabin demand speed and the temperature difference compensation speed between the water pump outlet and the radiator outlet.

8. A thermal management system control device, It is characterized in that include: A heat exchange demand monitoring module, used to monitor the heat exchange demand of a target heat exchange object, wherein the target heat exchange object includes at least one heat exchange object; A heat exchange mode determination module, for determining a heat exchange mode corresponding to the target heat exchange condition when it is determined that the thermal management system is in a target heat exchange condition based on the heat exchange demand of the target heat exchange object, wherein the target heat exchange condition indicates that one or more of the heat exchange objects have a heat exchange demand, and the heat exchange mode includes coolant heat exchange and / or air heat exchange; The component control module is used to control the target controlled component to adjust the target parameter based on the control strategy under the heat exchange mode, wherein the target parameter is used to reflect whether the heat exchange object reaches the required temperature, and the control strategy is used to make the heat exchange object reach the required temperature.

9. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores a program or instruction, and the program or instruction enables a computer to execute the steps of the method according to any one of claims 1 to 7.

10. A vehicle, It is characterized in that include: one or more processors; A memory for storing one or more programs or instructions; The processor is used to execute the steps of the method according to any one of claims 1 to 7 by calling the program or instruction stored in the memory.

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