Thermal management system and method, vehicle and electronic equipment

Abstract

The invention relates to a heat management system and method, a vehicle and electronic equipment, relates to the technical field of heat management, and at least solves the technical problem that in the related technology, when a new energy vehicle achieves a heating mode based on an air conditioning system, the heat management effect on energy consumption of the vehicle is poor. The heat management system comprises a power battery heat exchange loop, a motor heat absorption loop and a controller, the power battery heat exchange loop is used for absorbing first heat generated during operation of the power battery; the motor heat absorption loop is used for absorbing second heat generated during operation of the motor; the controller is used for providing the first heat to the passenger compartment under the condition that the passenger compartment has a heating demand and the power battery has a refrigeration demand; the controller is further used for providing the second heat for the passenger compartment under the condition that the passenger compartment has the heating requirement, and / or providing the second heat for the power battery under the condition that the power battery has the heating requirement. The method and the device are used for performing thermal management on the energy consumption of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal management, in particular to a thermal management system, method, vehicle and electronic device. BACKGROUND

[0002] With the gradual popularization of new energy vehicles, the number of new energy vehicles on the market is increasing, but the endurance mileage of new energy vehicles is a major pain point. Especially in the winter low temperature environment, on the one hand, the activity of the power battery decreases, resulting in a decrease in endurance mileage, and on the other hand, the opening of the passenger compartment for heating air conditioning consumes a large amount of electric energy, resulting in a decrease in endurance mileage. The mainstream method of thermal management of new energy vehicles at present is to use a high-efficiency heat pump air conditioning system to heat the passenger compartment.

[0003] In related technologies, the refrigerant flows through the compressor, the water-cooled condenser, the liquid tank, the electronic expansion valve, the heat exchanger, the water pump, the water heater and the radiator and other components in turn to realize the air conditioning heating mode in the thermal management mode. This method uses refrigerant as a temperature regulating medium, adjusts the temperature (form) of the condenser through the water-cooled condenser, the electronic expansion valve, the heat exchanger, the water pump, the water heater and the radiator and other components, and achieves the air conditioning heating mode. Although it can realize the air conditioning heating mode, a large amount of electric energy is consumed to achieve the air conditioning heating effect.

[0004] In another related technology, the working mode of the vehicle air conditioning system is identified, and based on the working mode, the mode dead zone and the valve control scheme are determined. Then, the valve control scheme is adjusted based on the mode dead zone to obtain a thermal management control scheme, so as to control the vehicle air conditioning system to work. This method controls the working state of the vehicle air conditioning system by controlling the working state of different components (in-vehicle condenser, out-vehicle condenser, in-vehicle evaporator, cooling temperature controller, etc.) through different valves. Although this method can efficiently control the working state of the vehicle air conditioning system through multiple valves to achieve the effect of saving electric energy, a large amount of electric energy is still consumed to achieve the air conditioning heating effect. Therefore, the current new energy vehicle has poor thermal management effect on the energy consumption of the vehicle when realizing the heating mode based on the air conditioning system. SUMMARY

[0005] The present application provides a thermal management system, method, vehicle and electronic device, and the purpose of the present application is to at least solve the technical problem that the new energy vehicle has poor thermal management effect on the energy consumption of the vehicle when realizing the heating mode based on the air conditioning system in related technologies.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] According to a first aspect provided by the present application, a thermal management system is provided, which includes: a power battery heat exchange circuit, a motor heat absorption circuit and a controller; the power battery heat exchange circuit is used to absorb a first heat generated when the power battery is running; the motor heat absorption circuit is used to absorb a second heat generated when the motor is running; the controller is used to provide the first heat to the passenger compartment when there is a heating demand in the passenger compartment and a cooling demand in the power battery; the controller is also used to provide the second heat to the passenger compartment when there is a heating demand in the passenger compartment, and / or, provide the second heat to the power battery when there is a heating demand in the power battery.

[0008] According to the above technical means, during vehicle thermal management, the present application can absorb first heat generated by the power battery during operation through the power battery heat exchange circuit, and second heat generated by the motor during operation through the motor heat absorption circuit. Furthermore, when the passenger compartment requires heating and the power battery requires cooling, the power battery heat exchange circuit can absorb heat from the power battery to cool the battery and provide the absorbed heat to the passenger compartment to heat it. Furthermore, when the passenger compartment requires heating, the motor heat absorption circuit can absorb heat from the motor to cool the motor and provide the absorbed heat to the passenger compartment to heat it. Alternatively, when the power battery requires heating, the heat absorbed from the motor can be provided to the power battery to heat it. In this way, when the passenger compartment, power battery, and motor require temperature adjustment, the heat generated by the power battery and / or motor during operation can be effectively utilized, thereby avoiding excessive energy consumption, improving the effectiveness of vehicle thermal management, and enhancing energy utilization.

[0009] In a possible embodiment, the above-mentioned thermal management system also includes: a refrigerant circulation loop, a passenger compartment heating loop and a power battery heating loop; the refrigerant circulation loop includes a compressor, a high-pressure liquid cooler, a liquid storage dryer, an electronic expansion valve and a low-pressure liquid cooler connected through a pipeline; the compressor is used to compress the refrigerant in the pipeline; the liquid storage dryer is used to store the refrigerant; the electronic expansion valve is used to adjust the flow rate of the refrigerant; the low-pressure liquid cooler is used to transfer the first heat from the power battery heat exchange loop and the second heat from the motor heat absorption loop to the high-pressure liquid cooler; the high-pressure liquid cooler is used to transfer the first heat and / or the second heat to the passenger compartment heating loop; the high-pressure liquid cooler is also used to transfer the second heat to the power battery heating loop.

[0010] According to the above technical means, the present application can form a refrigerant circulation loop by connecting a compressor, a high-pressure liquid cooler, a liquid storage dryer, an electronic expansion valve and a low-pressure liquid cooler. In this way, through the interaction of the various components included in the refrigerant circulation loop, the heat in the power battery heat exchange loop and / or the motor heat absorption loop can be transferred to the passenger compartment to heat the passenger compartment. When the power battery has a heating demand, the heat in the motor heat absorption loop can also be transferred to the power battery heating loop to heat the power battery. Based on this, the heat in other loops can be transferred to each other through the refrigerant circulation loop, so that when some devices generate heat and other devices need heating, the heat can be reasonably utilized to avoid heat waste and unnecessary consumption of electrical energy.

[0011] In one possible embodiment, the power battery heat exchange circuit includes a parallel plate heat exchanger, a first water pump and a power battery heat pipe connected by a pipeline; the power battery heat pipe is used to absorb the first heat and transfer the first heat to the parallel plate heat exchanger through the coolant in the pipeline; the parallel plate heat exchanger is used to exchange the first heat to the low-pressure liquid cooler, so that the first heat is transferred to the passenger compartment through the refrigerant circulation circuit and the passenger compartment heating circuit; the first water pump is used to drive the flow of coolant in the pipeline.

[0012] According to the above technical means, the present application can form a power battery heat exchange circuit by connecting a parallel plate heat exchanger, a first water pump and a power battery heat pipe. In this way, the first heat in the power battery absorbed by the power battery heat pipe can be exchanged to the low-pressure liquid cooler through the parallel plate heat exchanger, and then the first heat is transferred to the passenger compartment through the refrigerant circulation circuit and the passenger compartment heating circuit to heat the passenger compartment. Based on this, the heat in the power battery can be exchanged to other circuits through the parallel plate heat exchanger, and the heat generated by the power battery can be reasonably utilized, thereby avoiding heat waste and unnecessary consumption of electrical energy.

[0013] In one possible embodiment, the motor heat absorption circuit includes: a second water pump, a low-pressure liquid cooler, a multi-way reversing valve and a motor heat pipe; the second water pump and the low-pressure liquid cooler are connected through a pipeline; the low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; the second port of the multi-way reversing valve is connected to the motor heat pipe through a pipeline; the motor heat pipe is connected to the third port of the multi-way reversing valve through a pipeline; the fourth port of the multi-way reversing valve is connected to the second water pump through a pipeline; the motor heat pipe is used to absorb the second heat and transfer the second heat to the low-pressure liquid cooler through the coolant in the pipeline; the second water pump is used to drive the flow of coolant in the pipeline; the controller is also used to control the conduction of the first port and the second port, and the conduction of the third port and the fourth port, so that the motor heat absorption circuit is conductive.

[0014] According to the above technical means, the present application can form a motor heat absorption circuit by connecting a second water pump, a low-pressure liquid cooler, a multi-way reversing valve and a motor heat pipe. In this way, the second heat in the motor absorbed by the motor heat pipe can be exchanged to the low-pressure liquid cooler, and then the second heat can be transferred to other devices through the refrigerant circulation loop including the low-pressure liquid cooler to heat the passenger compartment and / or the power battery. Based on this, by exchanging the heat in the motor to other circuits, the heat generated by the motor can be reasonably utilized, thereby avoiding heat waste and unnecessary consumption of electrical energy.

[0015] In one possible embodiment, the passenger compartment heating circuit includes: a third water pump, a high-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a hot water core; the third water pump is connected to the high-pressure liquid cooler through a pipeline; the high-pressure liquid cooler is connected to the fifth port of the multi-way reversing valve through a pipeline; the sixth port of the multi-way reversing valve is connected to the first valve port of the six-way proportional valve through a pipeline; the second valve port of the six-way proportional valve is connected to the hot water core through a pipeline; the hot water core is connected to the seventh port of the multi-way reversing valve through a pipeline; the eighth port of the multi-way reversing valve is connected to the third water pump through a pipeline; the third water pump is used to drive the flow of coolant in the pipeline; the high-pressure liquid cooler is used to transfer the first heat and / or the second heat to the hot water core; the hot water core is used to exchange the first heat and / or the second heat to the passenger compartment; the controller is also used to control the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the second valve port to be connected when there is a heating demand in the passenger compartment, so as to make the passenger compartment heating circuit conductive.

[0016] According to the above technical means, the present application can form a passenger compartment heating circuit by connecting a third water pump, a high-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a hot water core. In this way, the first heat generated by the power battery and / or the second heat generated by the motor can be transferred to the hot water core through the high-pressure liquid cooler, so that the first heat and / or the second heat generated by the motor can be exchanged to the passenger compartment through the hot water core to heat the passenger compartment. Based on this, the first heat generated by the power battery and / or the second heat generated by the motor can be exchanged to the passenger compartment through the high-pressure liquid cooler and the hot water core to heat the passenger compartment, and the heat generated by the motor can be reasonably utilized to avoid heat waste and unnecessary consumption of electrical energy.

[0017] In one possible embodiment, the power battery heating circuit includes a third water pump, a high-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a parallel plate heat exchanger connected by a pipeline; the third water pump is connected to the high-pressure liquid cooler through a pipeline; the high-pressure liquid cooler is connected to the fifth port of the multi-way reversing valve through a pipeline; the sixth port of the multi-way reversing valve is connected to the first valve port of the six-way proportional valve through a pipeline; the third valve port of the six-way proportional valve is connected to the parallel plate heat exchanger through a pipeline; the parallel plate heat exchanger is connected to the seventh port of the multi-way reversing valve through a pipeline; the eighth port of the multi-way reversing valve is connected to the third water pump through a pipeline; the high-pressure liquid cooler is specifically used to transfer the second heat to the parallel plate heat exchanger; the parallel plate heat exchanger is also used to transfer the second heat to the power battery heat exchange circuit to provide heat to the power battery; the controller is also used to control the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the third valve port to be connected when the power battery has a heating demand, so as to make the power battery heating circuit conductive.

[0018] According to the above technical means, the present application can form a power battery heating circuit by connecting a third water pump, a high-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a parallel plate heat exchanger. In this way, the second heat generated by the motor can be transferred to the parallel plate heat exchanger through the high-pressure liquid cooler, and the second heat can be exchanged to the power battery heat exchange circuit through the parallel plate heat exchanger to heat the power battery. Based on this, the second heat generated by the motor can be exchanged to the power battery through the high-pressure liquid cooler and the parallel plate heat exchanger to heat the power battery, and the heat generated by the motor can be reasonably utilized to avoid heat waste and unnecessary consumption of electrical energy.

[0019] In one possible embodiment, the thermal management system also includes: a passenger compartment refrigeration circuit; the passenger compartment refrigeration circuit includes: a second water pump, a low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a cold water core; the second water pump is connected to the low-pressure liquid cooler through a pipeline; the low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; the ninth port of the multi-way reversing valve is connected to the fourth valve port of the six-way proportional valve through a pipeline; the fifth valve port of the six-way proportional valve is connected to the cold water core through a pipeline; the cold water core is connected to the second water pump through a pipeline; the second water pump is used to drive the flow of coolant in the pipeline; the low-pressure liquid cooler is also used to reduce the heat of the cold water core through a refrigerant circulation loop; the cold water core is used to reduce the heat of the passenger compartment; the controller is also used to control the first port and the ninth port to be connected, and the fourth valve port and the fifth valve port to be connected when there is a cooling demand in the passenger compartment, so as to make the passenger compartment refrigeration circuit conductive.

[0020] Based on the above technical means, the present application can construct a passenger compartment refrigeration circuit by connecting a second water pump, a low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve, and a cold water core. This allows the refrigerant circulation circuit to reduce the heat of the cold water core, thereby reducing the heat in the passenger compartment through the cold water core, thereby cooling the passenger compartment. Furthermore, the refrigerant circulation circuit can also lower the temperature of the coolant in the passenger compartment refrigeration circuit, thereby cooling the passenger compartment.

[0021] In one possible embodiment, the thermal management system also includes: a power battery refrigeration circuit; the power battery refrigeration circuit includes: a second water pump, a low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a parallel plate heat exchanger; the second water pump is connected to the low-pressure liquid cooler through a pipeline; the low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; the ninth port of the multi-way reversing valve is connected to the fourth valve port of the six-way proportional valve through a pipeline; the sixth valve port of the six-way proportional valve is connected to the parallel plate heat exchanger through a pipeline; the parallel plate heat exchanger is connected to the second water pump through a pipeline; the second water pump is used to drive the coolant flow in the pipeline; the low-pressure liquid cooler is also used to reduce the heat of the parallel plate heat exchanger through a refrigerant circulation loop; the parallel plate heat exchanger is also used to reduce the temperature of the coolant in the power battery heat exchange circuit to cool the power battery; the controller is also used to control the first port and the ninth port to be connected, and the fourth valve port and the sixth valve port to be connected when the power battery has a cooling demand, so as to make the power battery refrigeration circuit conductive.

[0022] Based on the above technical means, the present application can form a power battery refrigeration circuit by connecting a second water pump, a low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve, and a parallel plate heat exchanger. In this way, the temperature of the coolant in the power battery refrigeration circuit can be lowered through the refrigerant circulation circuit, and the temperature of the coolant in the power battery heat exchange circuit can be lowered through the parallel plate heat exchanger to cool the power battery. Based on this, the power battery can be cooled through the mutual heat exchange between the refrigerant circulation circuit, the power battery refrigeration circuit, and the power battery heat exchange circuit.

[0023] In one possible embodiment, the motor heat absorption circuit further includes: a radiator; the tenth port of the multi-way reversing valve is connected to the radiator via a pipe; the radiator is connected to the motor heat pipe via a pipe; the radiator is used to dissipate heat in the motor heat absorption circuit into the air; the controller is further used to control the first port and the tenth port to be connected, and the third port and the fourth port to be connected, so that the motor heat absorption circuit is turned on when there is no heating demand for the passenger compartment and the power battery.

[0024] According to the above technical means, the heat dissipation effect of the motor can be improved, and the motor overheating abnormality can be avoided.

[0025] According to the second aspect, the heat management method is applied to the controller in the heat management system, and the heat management system further includes a power battery heat exchange circuit and a motor heat absorption circuit. The power battery heat exchange circuit is used to absorb the first heat generated when the power battery operates. The motor heat absorption circuit is used to absorb the second heat generated when the motor operates. The heat management method includes: in the case that the passenger compartment has a heating demand and the power battery has a cooling demand, providing the first heat to the passenger compartment; in the case that the passenger compartment has a heating demand, providing the second heat to the passenger compartment, and / or in the case that the power battery has a heating demand, providing the second heat to the power battery.

[0026] In a possible implementation, the heat management system further includes a refrigerant circulation circuit, a passenger compartment heating circuit, and a power battery heating circuit. The refrigerant circulation circuit includes a compressor, a high-pressure liquid cooler, a liquid storage dryer, an electronic expansion valve, and a low-pressure liquid cooler, which are connected by pipelines. The compressor is used to compress the refrigerant in the pipeline. The liquid storage dryer is used to store the refrigerant. The electronic expansion valve is used to adjust the flow of the refrigerant. The low-pressure liquid cooler is used to transfer the first heat from the power battery heat exchange circuit and the second heat from the motor heat absorption circuit to the high-pressure liquid cooler. The high-pressure liquid cooler is used to transfer the first heat and / or the second heat to the passenger compartment heating circuit. The high-pressure liquid cooler is also used to transfer the second heat to the power battery heating circuit.

[0027] In a possible implementation, the power battery heat exchange circuit includes a parallel plate heat exchanger, a first water pump, and a power battery heat pipe, which are connected by pipelines. The power battery heat pipe is used to absorb the first heat and transfer the first heat to the parallel plate heat exchanger through the cooling liquid in the pipeline. The parallel plate heat exchanger is used to exchange the first heat with the low-pressure liquid cooler, so that the first heat is transferred to the passenger compartment through the refrigerant circulation circuit and the passenger compartment heating circuit. The first water pump is used to drive the cooling liquid in the pipeline to flow.

[0028] In one possible embodiment, the motor heat absorption circuit includes: a second water pump, a low-pressure liquid cooler, a multi-way reversing valve and a motor heat pipe; the second water pump and the low-pressure liquid cooler are connected through a pipeline; the low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; the second port of the multi-way reversing valve is connected to the motor heat pipe through a pipeline; the motor heat pipe is connected to the third port of the multi-way reversing valve through a pipeline; the fourth port of the multi-way reversing valve is connected to the second water pump through a pipeline; the motor heat pipe is used to absorb the second heat and transfer the second heat to the low-pressure liquid cooler through the coolant in the pipeline; the second water pump is used to drive the flow of coolant in the pipeline; the thermal management method also includes: controlling the first port and the second port to be conductive, and the third port and the fourth port to be conductive, so that the motor heat absorption circuit is conductive.

[0029] In one possible embodiment, the passenger compartment heating circuit includes: a third water pump, a high-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a hot water core; the third water pump is connected to the high-pressure liquid cooler through a pipeline; the high-pressure liquid cooler is connected to the fifth port of the multi-way reversing valve through a pipeline; the sixth port of the multi-way reversing valve is connected to the first valve port of the six-way proportional valve through a pipeline; the second valve port of the six-way proportional valve is connected to the hot water core through a pipeline; the hot water core is connected to the seventh port of the multi-way reversing valve through a pipeline; the eighth port of the multi-way reversing valve is connected to the third water pump through a pipeline; the third water pump is used to drive the flow of coolant in the pipeline; the high-pressure liquid cooler is used to transfer the first heat and / or the second heat to the hot water core; the hot water core is used to exchange the first heat and / or the second heat to the passenger compartment; the thermal management method also includes: when there is a heating demand in the passenger compartment, controlling the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the second valve port to be connected, so that the passenger compartment heating circuit is turned on.

[0030] In one possible embodiment, the power battery heating circuit includes a third water pump, a high-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a parallel plate heat exchanger connected by a pipeline; the third water pump is connected to the high-pressure liquid cooler through a pipeline; the high-pressure liquid cooler is connected to the fifth port of the multi-way reversing valve through a pipeline; the sixth port of the multi-way reversing valve is connected to the first valve port of the six-way proportional valve through a pipeline; the third valve port of the six-way proportional valve is connected to the parallel plate heat exchanger through a pipeline; the parallel plate heat exchanger is connected to the seventh port of the multi-way reversing valve through a pipeline; the eighth port of the multi-way reversing valve is connected to the third water pump through a pipeline; the high-pressure liquid cooler is specifically used to transfer the second heat to the parallel plate heat exchanger; the parallel plate heat exchanger is also used to transfer the second heat to the power battery heat exchange circuit to provide heat to the power battery; the thermal management method also includes: when the power battery has a heating demand, controlling the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the third valve port to be connected, so that the power battery heating circuit is conductive.

[0031] In one possible embodiment, the thermal management system also includes: a passenger compartment refrigeration circuit; the passenger compartment refrigeration circuit includes: a second water pump, a low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a cold water core; the second water pump is connected to the low-pressure liquid cooler through a pipeline; the low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; the ninth port of the multi-way reversing valve is connected to the fourth valve port of the six-way proportional valve through a pipeline; the fifth valve port of the six-way proportional valve is connected to the cold water core through a pipeline; the cold water core is connected to the second water pump through a pipeline; the second water pump is used to drive the flow of coolant in the pipeline; the low-pressure liquid cooler is also used to reduce the heat of the cold water core through a refrigerant circulation loop; the cold water core is used to reduce the heat of the passenger compartment; the thermal management method also includes: when there is a cooling demand in the passenger compartment, controlling the first port and the ninth port to be connected, and the fourth valve port and the fifth valve port to be connected, so that the passenger compartment refrigeration circuit is connected.

[0032] In one possible embodiment, the thermal management system also includes: a power battery cooling circuit; the power battery cooling circuit includes: a second water pump, a low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a parallel plate heat exchanger; the second water pump is connected to the low-pressure liquid cooler through a pipeline; the low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; the ninth port of the multi-way reversing valve is connected to the fourth valve port of the six-way proportional valve through a pipeline; the sixth valve port of the six-way proportional valve is connected to the parallel plate heat exchanger through a pipeline; the parallel plate heat exchanger is connected to the second water pump through a pipeline; the second water pump is used to drive the coolant flow in the pipeline; the low-pressure liquid cooler is also used to reduce the heat of the parallel plate heat exchanger through a refrigerant circulation loop; the parallel plate heat exchanger is also used to reduce the temperature of the coolant in the power battery heat exchange circuit to cool the power battery; the thermal management method also includes: when the power battery has a cooling demand, controlling the first port and the ninth port to be connected, and the fourth valve port and the sixth valve port to be connected, so that the power battery cooling circuit is connected.

[0033] In one possible embodiment, the motor heat absorption circuit further includes: a radiator; the tenth port of the multi-way reversing valve is connected to the radiator via a pipe; the radiator is connected to the motor heat pipe via a pipe; the radiator is used to dissipate heat in the motor heat absorption circuit into the air; the thermal management method further includes: when there is no heating demand for the passenger compartment and the power battery, controlling the first port and the tenth port to be connected, and the third port and the fourth port to be connected, so that the motor heat absorption circuit is conductive.

[0034] According to the third aspect provided by the present application, an electronic device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute instructions to implement the method of the above-mentioned second aspect and any possible implementation method thereof.

[0035] According to the fourth aspect provided by the present application, a computer-readable storage medium is provided. When the computer execution instructions stored in the computer-readable storage medium are executed by the processor of an electronic device, the electronic device executes the method of the above-mentioned second aspect and any possible implementation method thereof.

[0036] According to the fifth aspect provided by the present application, a computer program product is provided, which includes computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the method of the above-mentioned second aspect and any possible implementation method thereof.

[0037] According to a sixth aspect provided by the present application, a vehicle is provided, the vehicle including a thermal management system as described in the first aspect and any possible embodiment thereof.

[0038] It should be noted that the technical effects brought about by any implementation method in the second to sixth aspects can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0039] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0041] Figure 1 A schematic diagram of a thermal management system according to an exemplary embodiment is shown. Figure 1 ;

[0042] Figure 2 A schematic diagram of a thermal management system according to an exemplary embodiment is shown. Figure 2 ;

[0043] Figure 3 1 is a structural schematic diagram of a multi-way reversing valve according to an exemplary embodiment;

[0044] Figure 4 1 is a structural schematic diagram of a six-way proportional valve according to an exemplary embodiment;

[0045] Figure 5 A schematic diagram of a thermal management system according to an exemplary embodiment is shown. Figure 3 ;

[0046] Figure 6 is a flow chart showing a thermal management method according to an exemplary embodiment;

[0047] Figure 7 is a condition determination schematic diagram according to an example embodiment;

[0048] Figure 8 is a refrigeration and dehumidification upper limit temperature schematic diagram according to an example embodiment;

[0049] Figure 9 is a block diagram of a thermal management device according to an example embodiment;

[0050] Figure 10 is a block diagram of an electronic device according to an example embodiment. DETAILED DESCRIPTION

[0051] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings.

[0052] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0053] The heat pump air conditioning system used on vehicles mainly uses R134a refrigerant (i.e. refrigerant) as the mainstream, and some use R290 refrigerant. However, due to the physical properties of R134a refrigerant, there are disadvantages such as narrow operating boundary and low low-temperature energy efficiency ratio (low temperature down to about -10℃, the coefficient of performance (COP) is only about 1.4 when running stably). The main reason is that the external heat exchanger has low heat absorption efficiency at low temperature, and the motor generates certain heat during vehicle operation. The motor heat is mainly dissipated through the low-temperature radiator, or enters the battery through the water valve to heat and keep warm.

[0054] R290 refrigerant, as a potential vehicle refrigerant, has the advantages of wide temperature range (low temperature as low as -25℃) and high energy efficiency ratio. However, it is necessary to reduce the refrigerant filling amount by means of secondary heat exchange, and the secondary heat exchange circuit makes the water system complex. It is necessary to redesign and develop the system architecture, involving system-level and component-level design and development and verification work.

[0055] The thermal management method provided by the embodiments of the present application can be applied to a thermal management system. For example, Figure 1 As shown, the thermal management system includes: a power battery heat exchange circuit 11 , a motor heat absorption circuit 12 (also called a heat absorption circuit) and a controller 13 .

[0056] The power battery heat exchange circuit 11 is used to absorb the first heat generated when the power battery is running; the motor heat absorption circuit 12 is used to absorb the second heat generated when the motor is running.

[0057] The controller 13 is configured to provide the first heat to the passenger compartment when the passenger compartment has a heating demand and the power battery has a cooling demand.

[0058] The controller 13 is further configured to provide the second heat to the passenger compartment when there is a need for heating the passenger compartment, and / or to provide the second heat to the power battery when there is a need for heating the power battery.

[0059] In an embodiment of the present application, during vehicle thermal management, the power battery heat exchange circuit can absorb first heat generated during power battery operation, and the motor heat absorption circuit can absorb second heat generated during motor operation. Furthermore, when the passenger compartment requires heating and the power battery requires cooling, the power battery heat exchange circuit can absorb heat from the power battery to cool the battery and provide the absorbed heat to the passenger compartment to heat the cabin. Furthermore, when the passenger compartment requires heating, the motor heat absorption circuit can absorb heat from the motor to cool the motor and provide the absorbed heat to the passenger compartment to heat the cabin. Alternatively, when the power battery requires heating, the heat absorbed from the motor can be provided to the power battery to heat the battery. In this way, when the passenger compartment, power battery, and motor require temperature adjustment, the heat generated by the power battery and / or motor can be effectively utilized, thereby avoiding excessive energy consumption, improving the effectiveness of vehicle thermal management, and enhancing energy utilization.

[0060] In one possible implementation, Figure 2 As shown, the thermal management system includes: radiator 201, motor heat pipe 202, third water pump 203, high-pressure liquid cooler 204, compressor 205, low-pressure liquid cooler 206, second water pump 207, cold water core 208, hot water core 209, parallel plate heat exchanger 210, first water pump 211, power battery heat pipe 212, six-way proportional valve 213, electronic expansion valve 214, liquid storage dryer 215, heater 216, and multi-way reversing valve 217. The motor heat pipe 202 is arranged in the motor, and the heater 216 can be a water-heated positive temperature coefficient (PTC) heater.

[0061] In one possible implementation, the thermal management system further includes a refrigerant circulation circuit, a passenger compartment heating circuit, and a power battery heating circuit. The refrigerant circulation circuit includes a compressor 205, a high-pressure liquid cooler 204, a liquid receiver dryer 215, an electronic expansion valve 214, and a low-pressure liquid cooler 206, all connected by pipes.

[0062] In one possible implementation, the compressor 205 is used to compress the refrigerant in the pipeline; the liquid storage dryer 215 is used to store the refrigerant; the electronic expansion valve 214 is used to adjust the flow of the refrigerant; the low-pressure liquid cooler 206 is used to transfer the first heat from the power battery heat exchange circuit and the second heat from the motor heat absorption circuit to the high-pressure liquid cooler 204; the high-pressure liquid cooler 204 is used to transfer the first heat and / or the second heat to the passenger compartment heating circuit; the high-pressure liquid cooler 204 is also used to transfer the second heat to the power battery heating circuit.

[0063] In one possible implementation, the thermal management system is compatible with both R134-a and R290 refrigerants, and supports heating and switching between multiple heat sources: air, water (motor stall and waste heat, battery waste heat). Furthermore, it can implement multiple heating and dehumidification modes, enabling full-scale heat pump operation, and dual cooling / heating to distribute cooling and heating according to demand load.

[0064] In one possible implementation, the refrigerant circulation loop in the thermal management system is compatible with R134-a refrigerant and R290 refrigerant. By adopting the refrigerant secondary heat exchange system architecture, the refrigerant circulation loop can be made compatible with the two refrigerants. The performance of the heat exchanger of other coolant circuits can be adjusted to adapt to the two refrigerants (for example, R134a is adapted to high-performance and high-cost heat exchangers, and R290 is adapted to standard performance heat exchangers).

[0065] In one possible implementation, the thermal management system can realize heating from multiple heat sources: air source, water source (motor stall and waste heat, battery waste heat). Among them, the air source can be used when the ambient temperature is higher than -18°C and there is a heating demand for either the passenger compartment or the power battery. The water source can be used when the motor has waste heat (the motor has a cooling demand and the outlet water temperature is greater than the ambient temperature) and there is a heating demand for either the passenger compartment or the power battery. When the motor has no waste heat (the motor has no cooling demand and the outlet water temperature is not greater than the ambient temperature) and the motor stall heating conditions are met, the water source can be used when there is a heating demand for either the passenger compartment or the power battery. In addition, the water source can also be used when the power battery has waste heat, that is, the power battery has a heat dissipation demand, and the passenger compartment has a heating demand.

[0066] In the embodiment of the present application, the air source can be understood as performing heat exchange with the air through the radiator 201, and the water source can be understood as performing heat exchange with the motor and / or the power battery.

[0067] In one possible implementation, the present application can realize a variety of heating and dehumidification modes, and the heat pump system can work under all working conditions (high energy efficiency ratio). When the ambient temperature is -5°C or below, the intake air cycle can be an external cycle (proportional to the internal cycle) to introduce the ambient low temperature (corresponding to the low water content under saturated air) air for dehumidification and perform heat pump heating; when the ambient temperature is between -5°C and 20°C, and the target temperature (the required temperature of the passenger compartment or the power battery) is greater than the ambient temperature, the intake air cycle can cool the intake air (high water content) through the refrigeration core to precipitate moisture and dehumidify, while the heating core works to heat the air and adjust the temperature damper to the target temperature to achieve heating, achieving the effect of heat pump heating and dehumidification. When the ambient temperature is greater than 20°C, and the target temperature is greater than the ambient temperature, the intake air cycle can be an internal cycle, which dehumidifies by lowering the temperature of the refrigeration core and precipitating moisture, while the heating core heats the air to the target temperature to achieve heating, achieving the effect of heat pump cooling and dehumidification.

[0068] In one possible implementation, when the passenger compartment and the power battery simultaneously have the same demand (cooling or heating), the cooling / heating capacity can be proportionally distributed and adjusted based on the load requirements of the passenger compartment and the power battery. Based on the heating load requirements of the passenger compartment and the power battery, the corresponding system operating conditions (compressor 205 speed, electronic valve opening, water pump flow) can be requested to produce the corresponding heat, and the proportional water valve opening can be adjusted to achieve heat distribution based on demand. Alternatively, based on the heating load requirements of the passenger compartment and the power battery, the corresponding system operating conditions (compressor 205 speed, electronic valve opening, water pump flow) can be requested to produce the corresponding heat, and the proportional water valve opening can be adjusted to achieve heat distribution based on demand.

[0069] In the embodiment of the present application, in the refrigerant circulation loop, the compression process is as follows: the compressor 205 draws in the low-temperature, low-pressure gaseous refrigerant after heat exchange from the low-pressure liquid cooler 206, and the compressor 205 performs work on the gaseous refrigerant (consuming electrical energy) to compress it into a high-temperature, high-pressure gaseous refrigerant. By converting the input electrical energy into the internal energy of the refrigerant (mainly manifested as an increase in temperature and pressure), the temperature and pressure of the refrigerant are increased, allowing it to release heat to the high-pressure liquid cooler 204 during the subsequent condensation process.

[0070] The condensing process is that the high-temperature and high-pressure gaseous refrigerant leaves the compressor 205 and enters the high-pressure liquid cooler 204. In the high-pressure liquid cooler 204, the high-temperature and high-pressure gaseous refrigerant releases heat to the relatively low-temperature liquid side of the high-pressure liquid cooler 204, and the refrigerant side is gradually cooled and condensed into medium-temperature and high-pressure liquid refrigerant. The refrigerant releases the heat absorbed in the low-pressure liquid cooler 206 and part of the energy obtained in the compression process (mainly latent heat). The heat carried by the refrigerant is discharged to the cooling liquid side for heat dissipation to the outside air or for system heating requirements, and the refrigerant completes the phase change from gas to liquid.

[0071] The throttling / expansion process is that the medium-temperature and high-pressure liquid refrigerant leaves the high-pressure liquid cooler 204 and flows through the electronic expansion valve 214. The electronic expansion valve 214 produces a throttling effect on the refrigerant (the pressure of the fluid drops sharply when passing through a small hole or narrow channel), and the pressure of the refrigerant drops sharply to become a low-temperature and low-pressure gas-liquid two-phase mixture. The isenthalpic pressure reduction causes part of the liquid refrigerant to evaporate instantaneously to absorb its own heat, causing the temperature of the remaining refrigerant to drop significantly.

[0072] The evaporation process is that the low-temperature and low-pressure gas-liquid two-phase refrigerant after throttling enters the low-pressure liquid cooler 206. In the low-pressure liquid cooler 206, the low-temperature liquid refrigerant absorbs the heat of the cooling liquid side and boils and evaporates to completely change into low-temperature and low-pressure gaseous refrigerant to complete the phase change from liquid to gas. The heat is taken away from the cooling liquid side to achieve temperature reduction, and the low-temperature refrigerant will be used to take away the heat source heat of the system refrigeration or waste heat recovery.

[0073] In the embodiment of the present application, the present application can form a refrigerant circulation loop through the connection of the compressor 205, the high-pressure liquid cooler 204, the liquid storage dryer 215, the electronic expansion valve 214 and the low-pressure liquid cooler 206. In this way, through the interaction of the devices included in the refrigerant circulation loop, the heat in the power battery heat exchange loop and / or the motor heat absorption loop can be transferred to the passenger compartment to heat the passenger compartment. When the power battery has heating requirements, the heat in the motor heat absorption loop can be transferred to the power battery heating loop to heat the power battery. Based on this, through the refrigerant circulation loop, the heat in other loops can be transferred to each other, so that when some devices generate heat and other devices need heating, the heat can be reasonably utilized, and unnecessary consumption of electric energy can be avoided.

[0074] In one possible implementation, the power battery heat exchange circuit includes a parallel plate heat exchanger 210, a first water pump 211 and a power battery heat pipe 212 connected by a pipeline; the power battery heat pipe 212 is used to absorb the first heat and transfer the first heat to the parallel plate heat exchanger 210 through the coolant in the pipeline; the parallel plate heat exchanger 210 is used to exchange the first heat to the low-pressure liquid cooler 206, so that the first heat is transferred to the passenger compartment through the refrigerant circulation circuit and the passenger compartment heating circuit; the first water pump 211 is used to drive the flow of coolant in the pipeline.

[0075] In an embodiment of the present application, the present application can form a power battery heat exchange circuit by connecting a parallel plate heat exchanger 210, a first water pump 211, and a power battery heat pipe 212. In this way, the first heat in the power battery absorbed by the power battery heat pipe 212 can be exchanged to the low-pressure liquid cooler 206 through the parallel plate heat exchanger 210, and then the first heat is transferred to the passenger compartment through the refrigerant circulation circuit and the passenger compartment heating circuit to heat the passenger compartment. Based on this, the heat in the power battery can be exchanged to other circuits through the parallel plate heat exchanger 210, and the heat generated by the power battery can be reasonably utilized, thereby avoiding heat waste and unnecessary consumption of electrical energy.

[0076] In one possible implementation, the motor heat absorption circuit includes: a second water pump 207, a low-pressure liquid cooler 206, a multi-way reversing valve 217 and a motor heat pipe 202; the second water pump 207 and the low-pressure liquid cooler 206 are connected through a pipeline; the low-pressure liquid cooler 206 is connected to the first port of the multi-way reversing valve 217 through a pipeline; the second port of the multi-way reversing valve 217 is connected to the motor heat pipe 202 through a pipeline; the motor heat pipe 202 is connected to the third port of the multi-way reversing valve 217 through a pipeline; the fourth port of the multi-way reversing valve 217 is connected to the second water pump 207 through a pipeline; the motor heat pipe 202 is used to absorb the second heat and transfer the second heat to the low-pressure liquid cooler 206 through the coolant in the pipeline; the second water pump 207 is used to drive the flow of coolant in the pipeline.

[0077] In a possible implementation, the controller is further configured to control the first port and the second port to be conductive, and the third port and the fourth port to be conductive, so that the heat absorption circuit of the motor is conductive.

[0078] In the embodiment of the present application, the multi-way reversing valve 217 includes ten ports, such as Figure 3 As shown, starting from the right side of the multi-way reversing valve 217 and extending counterclockwise, they are: the fifth port 2175, the sixth port 2176, the first port 2171, the ninth port 2179, the second port 2172, the tenth port 2170, the third port 2173, the fourth port 2174, the seventh port 2177 and the eighth port 2178.

[0079] In an embodiment of the present application, the present application can form a motor heat absorption circuit by connecting the second water pump 207, the low-pressure liquid cooler 206, the multi-way reversing valve 217 and the motor heat pipe 202. In this way, the second heat in the motor absorbed by the motor heat pipe 202 can be exchanged to the low-pressure liquid cooler 206, and then the second heat can be transferred to other devices through the refrigerant circulation loop including the low-pressure liquid cooler 206 to heat the passenger compartment and / or the power battery. Based on this, by exchanging the heat in the motor to other circuits, the heat generated by the motor can be reasonably utilized, thereby avoiding heat waste and unnecessary consumption of electrical energy.

[0080] In one possible implementation, the passenger compartment heating circuit includes: a third water pump 203, a high-pressure liquid cooler 204, a multi-way reversing valve 217, a six-way proportional valve 213 and a hot water core 209; the third water pump 203 is connected to the high-pressure liquid cooler 204 through a pipeline; the high-pressure liquid cooler 204 is connected to the fifth port of the multi-way reversing valve 217 through a pipeline; the sixth port of the multi-way reversing valve 217 is connected to the first valve port of the six-way proportional valve 213 through a pipeline; the second valve port of the six-way proportional valve 213 is connected to the hot water core 209 through a pipeline; the hot water core 209 is connected to the seventh port of the multi-way reversing valve 217 through a pipeline; the eighth port of the multi-way reversing valve 217 is connected to the third water pump 203 through a pipeline.

[0081] In one possible implementation, the third water pump 203 is used to drive the flow of coolant in the pipeline; the high-pressure liquid cooler 204 is used to transfer the first heat and / or the second heat to the hot water core 209; and the hot water core 209 is used to exchange the first heat and / or the second heat to the passenger compartment.

[0082] In one possible implementation, the controller is also used to control the fifth and sixth ports to be connected, the seventh and eighth ports to be connected, and the first valve port to be connected to the second valve port when there is a demand for heating in the passenger compartment, so as to connect the passenger compartment heating circuit.

[0083] In the embodiment of the present application, the six-way proportional valve 213 includes six valve ports, such as Figure 4 As shown, starting from the right side of the six-way proportional valve 213 and extending counterclockwise, there are: the second valve port 2132 , the third valve port 2133 , the first valve port 2131 , the fourth valve port 2134 , the fifth valve port 2135 and the sixth valve port 2136 .

[0084] In an embodiment of the present application, the present application can form a passenger compartment heating circuit by connecting the third water pump 203, the high-pressure liquid cooler 204, the multi-way reversing valve 217, the six-way proportional valve 213 and the hot water core 209. In this way, the first heat generated by the power battery and / or the second heat generated by the motor can be transferred to the hot water core 209 through the high-pressure liquid cooler 204, so that the first heat and / or the second heat generated by the motor can be exchanged to the passenger compartment through the hot water core 209 to heat the passenger compartment. Based on this, the first heat generated by the power battery and / or the second heat generated by the motor can be exchanged to the passenger compartment through the high-pressure liquid cooler 204 and the hot water core 209 to heat the passenger compartment, while the heat generated by the motor can be reasonably utilized to avoid heat waste and unnecessary consumption of electrical energy.

[0085] In one possible implementation, the power battery heating circuit includes a third water pump 203, a high-pressure liquid cooler 204, a multi-way reversing valve 217, a six-way proportional valve 213 and a parallel plate heat exchanger 210 connected by a pipeline; the third water pump 203 is connected to the high-pressure liquid cooler 204 through a pipeline; the high-pressure liquid cooler 204 is connected to the fifth port of the multi-way reversing valve 217 through a pipeline; the sixth port of the multi-way reversing valve 217 is connected to the first valve port of the six-way proportional valve 213 through a pipeline; the third valve port of the six-way proportional valve 213 is connected to the parallel plate heat exchanger 210 through a pipeline; the parallel plate heat exchanger 210 is connected to the seventh port of the multi-way reversing valve 217 through a pipeline; the eighth port of the multi-way reversing valve 217 is connected to the third water pump 203 through a pipeline.

[0086] In one possible implementation, the high-pressure liquid cooler 204 is specifically used to transfer the second heat to the parallel plate heat exchanger 210 ; the parallel plate heat exchanger 210 is further used to transfer the second heat to the power battery heat exchange circuit to provide heat to the power battery.

[0087] In one possible implementation, the controller is also used to control the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the third valve port to be connected when the power battery has a heating demand, so as to open the power battery heating circuit.

[0088] In the embodiment of the present application, when the passenger compartment and power battery are heated by a water-source heat pump, the refrigerant circulates in the following order in the refrigerant circulation loop: sequentially flowing through the compressor 205, the high-pressure liquid cooler 204, the liquid receiver dryer 215, the electronic expansion valve 214, and the low-pressure liquid cooler 206, and finally flowing back from the low-pressure liquid cooler 206 to the compressor 205. In the passenger compartment heating circuit, the coolant circulates in the following order: sequentially flowing through the third water pump 203, the high-pressure liquid cooler 204, the heater 216, the multi-way reversing valve 217, the six-way proportional valve 213, the hot water core 209, the multi-way reversing valve 217, and finally flowing back from the multi-way reversing valve 217 to the third water pump 203. In the power battery heating circuit, the coolant circulates through the third water pump 203, high-pressure liquid cooler 204, heater 216, multi-way reversing valve 217, six-way proportional valve 213, parallel plate heat exchanger 210, and multi-way reversing valve 217, ultimately returning to the third water pump 203 from the multi-way reversing valve 217. In the motor heat absorption circuit, the coolant circulates through the second water pump 207, low-pressure liquid cooler 206, multi-way reversing valve 217, motor heat pipe 202, and multi-way reversing valve 217, ultimately returning to the second water pump 207 from the multi-way reversing valve 217.

[0089] In an embodiment of the present application, the present application can form a power battery heating circuit by connecting the third water pump 203, the high-pressure liquid cooler 204, the multi-way reversing valve 217, the six-way proportional valve 213 and the parallel plate heat exchanger 210. In this way, the second heat generated by the motor can be transferred to the parallel plate heat exchanger 210 through the high-pressure liquid cooler 204, so that the second heat can be exchanged to the power battery heat exchange circuit through the parallel plate heat exchanger 210 to heat the power battery. Based on this, the second heat generated by the motor can be exchanged to the power battery through the high-pressure liquid cooler 204 and the parallel plate heat exchanger 210 to heat the power battery, and the heat generated by the motor can be reasonably utilized to avoid heat waste and unnecessary consumption of electrical energy.

[0090] In one possible implementation, the thermal management system also includes: a passenger compartment refrigeration circuit; the passenger compartment refrigeration circuit includes: a second water pump 207, a low-pressure liquid cooler 206, a multi-way reversing valve 217, a six-way proportional valve 213 and a cold water core 208; the second water pump 207 is connected to the low-pressure liquid cooler 206 through a pipeline; the low-pressure liquid cooler 206 is connected to the first port of the multi-way reversing valve 217 through a pipeline; the ninth port of the multi-way reversing valve 217 is connected to the fourth valve port of the six-way proportional valve 213 through a pipeline; the fifth valve port of the six-way proportional valve 213 is connected to the cold water core 208 through a pipeline; the cold water core 208 is connected to the second water pump 207 through a pipeline.

[0091] In one possible implementation, the second water pump 207 is used to drive the coolant flow in the pipeline; the low-pressure liquid cooler 206 is also used to reduce the heat of the cold water core 208 through a refrigerant circulation loop; the cold water core 208 is used to reduce the heat in the passenger compartment.

[0092] In one possible implementation, the controller is further configured to control the first port and the ninth port to be connected, and the fourth valve port and the fifth valve port to be connected, so that the passenger compartment refrigeration circuit is turned on when there is a demand for cooling in the passenger compartment.

[0093] In the embodiment of the present application, when cooling the passenger compartment, the refrigerant circulates in the following order in the refrigerant circulation loop: sequentially flowing through the compressor 205, the high-pressure liquid cooler 204, the liquid receiver dryer 215, the electronic expansion valve 214, and the low-pressure liquid cooler 206, and finally flowing back from the low-pressure liquid cooler 206 to the compressor 205. In the passenger compartment refrigeration circuit, the coolant circulates in the following order: sequentially flowing through the second water pump 207, the low-pressure liquid cooler 206, the multi-way reversing valve 217, the six-way proportional valve 213, and the cold water core 208, and finally flowing back from the cold water core 208 to the second water pump 207. In the heat dissipation circuit, the coolant circulates in the following order: it flows through the third water pump 203, the high-pressure liquid cooler 204, the heater 216, the multi-way reversing valve 217, the radiator 201, the motor heat pipe 202, the multi-way reversing valve 217, and finally flows back to the third water pump 203 from the multi-way reversing valve 217.

[0094] In one possible implementation, the passenger compartment refrigeration circuit may also be used to implement a passenger compartment dehumidification function.

[0095] In an embodiment of the present application, a passenger compartment refrigeration circuit can be formed by connecting a second water pump 207, a low-pressure liquid cooler 206, a multi-way reversing valve 217, a six-way proportional valve 213, and a cold water core 208. This allows the refrigerant circulation circuit to reduce the heat of the cold water core 208, thereby reducing the heat in the passenger compartment through the cold water core 208 and cooling the passenger compartment. Furthermore, the refrigerant circulation circuit can also reduce the temperature of the coolant in the passenger compartment refrigeration circuit, thereby cooling the passenger compartment.

[0096] In one possible implementation, the thermal management system also includes: a power battery refrigeration circuit; the power battery refrigeration circuit includes: a second water pump 207, a low-pressure liquid cooler 206, a multi-way reversing valve 217, a six-way proportional valve 213 and a parallel plate heat exchanger 210; the second water pump 207 is connected to the low-pressure liquid cooler 206 through a pipeline; the low-pressure liquid cooler 206 is connected to the first port of the multi-way reversing valve 217 through a pipeline; the ninth port of the multi-way reversing valve 217 is connected to the fourth valve port of the six-way proportional valve 213 through a pipeline; the sixth valve port of the six-way proportional valve 213 is connected to the parallel plate heat exchanger 210 through a pipeline; the parallel plate heat exchanger 210 is connected to the second water pump 207 through a pipeline.

[0097] In one possible implementation, the second water pump 207 is used to drive the flow of coolant in the pipeline; the low-pressure liquid cooler 206 is also used to reduce the heat of the parallel plate heat exchanger 210 through the refrigerant circulation loop; the parallel plate heat exchanger 210 is also used to reduce the temperature of the coolant in the power battery heat exchange loop to cool the power battery.

[0098] In a possible implementation, the controller is further configured to control the first port and the ninth port to be connected, and the fourth valve port and the sixth valve port to be connected, so as to connect the power battery cooling circuit when the power battery has a cooling demand.

[0099] In the embodiment of the present application, when cooling the power battery, the refrigerant in the refrigerant circulation loop circulates in the following order: sequentially through the compressor 205, the high-pressure liquid cooler 204, the liquid receiver dryer 215, the electronic expansion valve 214, and the low-pressure liquid cooler 206, and finally flows back from the low-pressure liquid cooler 206 to the compressor 205. In the power battery cooling circuit, the coolant circulates in the following order: sequentially through the second water pump 207, the low-pressure liquid cooler 206, the multi-way reversing valve 217, the six-way proportional valve 213, and the parallel plate heat exchanger 210, and finally flows from the parallel plate heat exchanger 210 back to the second water pump 207. In the heat dissipation circuit, the coolant circulates in the following order: it flows through the third water pump 203, the high-pressure liquid cooler 204, the heater 216, the multi-way reversing valve 217, the radiator 201, the motor heat pipe 202, the multi-way reversing valve 217, and finally flows back to the third water pump 203 from the multi-way reversing valve 217.

[0100] In an embodiment of the present application, the present application can form a power battery refrigeration circuit by connecting the second water pump 207, the low-pressure liquid cooler 206, the multi-way reversing valve 217, the six-way proportional valve 213, and the parallel plate heat exchanger 210. In this way, the temperature of the coolant in the power battery refrigeration circuit can be reduced by the refrigerant circulation circuit, and the temperature of the coolant in the power battery heat exchange circuit can be reduced by the parallel plate heat exchanger 210 to cool the power battery. Based on this, the power battery can be cooled by the mutual heat exchange between the refrigerant circulation circuit, the power battery refrigeration circuit, and the power battery heat exchange circuit.

[0101] In one possible implementation, the motor heat absorption circuit also includes: a radiator 201; the tenth port of the multi-way reversing valve 217 is connected to the radiator 201 through a pipeline; the radiator 201 is connected to the motor heat pipe 202 through a pipeline; the radiator 201 is used to dissipate the heat in the motor heat absorption circuit into the air.

[0102] In one possible implementation, the controller is further configured to control the first port and the tenth port to be conductive, and the third port and the fourth port to be conductive, so that the motor heat absorption circuit is conductive when there is no heating demand for the passenger compartment and the power battery.

[0103] In the embodiment of the present application, when the passenger compartment and power battery are heated using an air-source heat pump, the circulation order of the refrigerant in the refrigerant circulation loop, the circulation order of the coolant in the passenger compartment heating loop, and the circulation order of the coolant in the power battery heating loop are the same as when the passenger compartment and power battery are heated using a water-source heat pump. In the motor heat absorption loop, the coolant circulates in the following order: through the second water pump 207, the low-pressure liquid cooler 206, the multi-way reversing valve 217, the radiator 201, the motor heat pipe 202, the multi-way reversing valve 217, and finally back to the second water pump 207 from the multi-way reversing valve 217.

[0104] In the embodiment of the present application, a radiator 201 can be connected to the motor heat absorption circuit. When the passenger compartment and power battery do not need to be heated, the heat in the motor heat absorption circuit can be dissipated into the air through the radiator 201. This can improve the heat dissipation effect of the motor and prevent motor overheating and abnormalities.

[0105] In an embodiment of the present application, multiple operating modes can be achieved by controlling the circulation of coolant. The multiple operating modes may specifically include: passenger compartment cooling mode, power battery cooling mode, passenger compartment and power battery cooling mode, passenger compartment and power battery heating mode (water source heat pump), passenger compartment and power battery heating mode (air source heat pump), passenger compartment heating mode (air source heat pump), power battery heating mode (air source heat pump), passenger compartment heating and dehumidification and power battery heating mode (air source heat pump), passenger compartment heating and dehumidification and power battery cooling mode, passenger compartment heating and power battery cooling mode (battery waste heat utilization, high calorific value), passenger compartment heating and power battery cooling or heat exchanger deicing mode (battery waste heat utilization, low calorific value).

[0106] Among them, the passenger compartment cooling mode requires the mutual heat exchange between the refrigerant circulation circuit, the passenger compartment cooling circuit and the heat dissipation circuit (including the radiator 201); the power battery cooling mode requires the mutual heat exchange between the refrigerant circulation circuit, the power battery cooling circuit and the heat dissipation circuit (including the radiator 201); the passenger compartment and power battery cooling mode requires the mutual heat exchange between the refrigerant circulation circuit, the passenger compartment cooling circuit, the power battery cooling circuit and the heat dissipation circuit (including the radiator 201); the passenger compartment and power battery heating mode (water source heat pump) requires the refrigerant circulation circuit The mutual heat exchange between the passenger compartment heating circuit, the passenger compartment heating circuit, the power battery heating circuit and the motor heat absorption circuit (excluding the radiator 201) is realized; the passenger compartment and power battery heating mode (air source heat pump) requires the mutual heat exchange between the refrigerant circulation circuit, the passenger compartment heating circuit and the motor heat absorption circuit (including the radiator 201); the passenger compartment heating mode (air source heat pump) requires the mutual heat exchange between the refrigerant circulation circuit, the passenger compartment heating circuit and the motor heat absorption circuit (including the radiator 201); the power battery heating mode (air source heat pump) requires the refrigerant circulation circuit , the mutual heat exchange between the power battery heating circuit and the motor heat absorption circuit (including the radiator 201) is realized; the passenger compartment heating and dehumidification and power battery heating mode (air source heat pump) requires a refrigerant circulation circuit, a passenger compartment heating circuit, a passenger compartment cooling circuit (for passenger compartment dehumidification), a power battery heating circuit and the motor heat absorption circuit (including the radiator 201) are realized; the passenger compartment heating and dehumidification and power battery cooling mode, requires a refrigerant circulation circuit, a passenger compartment heating circuit, a passenger compartment cooling circuit (for passenger compartment dehumidification), a power battery cooling circuit The mutual heat exchange between the passenger compartment heating circuit, the power battery cooling circuit and the heat dissipation circuit (including the radiator 201) is realized; the passenger compartment heating and power battery cooling mode (battery waste heat utilization, high calorific value) requires the mutual heat exchange between the refrigerant circulation circuit, the passenger compartment heating circuit, the power battery cooling circuit and the heat dissipation circuit (excluding the radiator 201); the passenger compartment heating and power battery cooling or heat exchanger de-icing mode (battery waste heat utilization, low calorific value) requires the mutual heat exchange between the refrigerant circulation circuit, the passenger compartment heating circuit, the power battery cooling circuit and the heat dissipation circuit (including the radiator 201).

[0107] In the embodiment of the present application, the refrigerant circulation loop is compatible with R134-a refrigerant and R290 refrigerant, and adopts a refrigerant secondary heat exchange system architecture, such as Figure 5As shown, the thermal management system comprises: a radiator 201, a motor heat pipe 202, a third water pump 203, a high-pressure liquid cooler 204, a compressor 205, a low-pressure liquid cooler 206, a second water pump 207, a cold water core 208, a hot water core 209, a parallel plate heat exchanger 210, a first water pump 211, a power battery heat pipe 212, a first three-way proportional valve 501, a second three-way proportional valve 502, an electronic expansion valve 214, a liquid storage dryer 215, a heater 216, a three-way reversing valve 503, a first four-way reversing valve 504, a second four-way reversing valve 505, and a third three-way proportional valve 506.

[0108] In a possible implementation, a multi-way reversing valve in Figure 2 may be obtained by integrating the three-way reversing valve 503, the first four-way reversing valve 504, the second four-way reversing valve 505, and the third three-way proportional valve 506. And a six-way proportional valve in Figure 2 may be obtained by integrating the first three-way proportional valve 501 and the second three-way proportional valve 502.

[0109] For ease of understanding, the thermal management method provided by the present application is specifically introduced below in combination with the accompanying drawings. The thermal management method is applied to a controller in a thermal management system, such as Figure 6 As shown, the thermal management method comprises S601-S602:

[0110] S601, in the case that the passenger compartment has a heating demand and the power battery has a cooling demand, providing the first heat to the passenger compartment.

[0111] S602, in the case that the passenger compartment has a heating demand, providing the second heat to the passenger compartment, and / or in the case that the power battery has a heating demand, providing the second heat to the power battery.

[0112] In some embodiments, the present application can realize multiple heat source heating and switching, wherein the air source heat Wh and the water source heat can include motor stall heat and waste heat Wj and power battery waste heat Wd, so as to determine the total heat W as W=Wh+Wd+Wj. According to the comparison between the total heating demand Qz and the air source heat Wh, the water source heat (motor stall heat and waste heat Wj and power battery waste heat Wd), the energy form corresponding to the case where the energy efficiency ratio is large is selected to determine the current working mode.

[0113] Specifically, the total heating demand can be determined based on the passenger compartment heat demand Qc and the power battery heat demand Qb (i.e., Qz = Qc + Qb). The passenger compartment heat demand Qc can be specifically calculated as follows: Qc = Rw*[(Tn-Tm)*qa*K+(Tw-Tm)*qa*(1-K)], where Rw is a calculation coefficient, Tn is the average passenger compartment temperature, Tw is the outside temperature, Tm is the target temperature (the required passenger compartment temperature, such as the air conditioning setpoint), qa is the passenger compartment recirculation air volume, and K is the internal and external air mixing ratio. The power battery heat demand Qb can be specifically calculated as follows: Qb = Rd*(Tt-Ta)*qb, where Rd is the power battery heating calculation coefficient including specific heat capacity, Tt is the target power battery temperature (i.e., the temperature to which the power battery is to be adjusted), Ta is the actual coolant temperature, and qb is the coolant circulation flow rate.

[0114] In the embodiment of the present application, the air source heat Wh can be obtained according to the refrigerant configuration, a two-dimensional calibration table related to the ambient temperature and the energy efficiency ratio of the heat pump system.

[0115] Table 1

[0116]

[0117] In the embodiment of the present application, when the power battery heat demand Qb is less than or equal to 0, it means that the power battery can provide heat, and the power battery waste heat Wd=Qb. Otherwise, when the power battery heat demand Qb is greater than 0, it means that the power battery has a heating demand, the power battery cannot provide heat, and the power battery waste heat Wd=0.

[0118] In one possible implementation, motor stall and waste heat Wj = Rj*(Tt-Ta)*qj; where Rj is a calculation coefficient, Tt is the target temperature of the power battery (also called the allowable operating temperature), Ta is the actual temperature of the coolant, and qj is the coolant circulation flow rate.

[0119] In one possible implementation, Figure 7 As shown in Table 2, multiple conditions can be combined to realize the judgment of multiple modes, thereby realizing the full-condition heat pump working mode.

[0120] Table 2

[0121]

[0122] In one possible implementation, when the passenger compartment needs dehumidification, heating dehumidification and cooling dehumidification can be achieved by controlling the cold water core, hot water core, internal and external air mixing dampers, and hot and cold mixing dampers without switching the refrigerant circuit.

[0123] In one possible implementation, Figure 8 The figure shows the upper limit temperature of refrigeration and dehumidification. When the ambient temperature is -5℃ or below, the air intake cycle is an external cycle (proportional to the internal cycle) to introduce low-temperature ambient air (corresponding to low water content under saturated air) for dehumidification, realizing the heat pump heating mode.

[0124] In one possible implementation, when the ambient temperature is between -5°C and 20°C, and the required temperature (i.e., target temperature) is greater than the ambient temperature, the intake air cycle is to cool the intake air (high water content) through the refrigeration core (i.e., cold water core) to precipitate moisture and dehumidify the air, while the heating core (i.e., hot water core) works to heat the air and adjust the temperature damper to the target temperature to achieve heating, thereby realizing the heat pump heating and dehumidification mode.

[0125] In one possible implementation, when the ambient temperature is greater than 20°C and the target temperature is greater than the ambient temperature, the intake air cycle is an internal cycle, which dehumidifies by lowering the temperature of the refrigeration core and precipitating moisture. At the same time, the heating core works to heat the air to the target temperature to achieve heating, thereby realizing the heat pump refrigeration and dehumidification mode.

[0126] In one possible implementation, the present application can also implement a dual cooling / dual heating mode, where the dual cooling / heating capacity can be allocated based on demand load. In dual cooling mode, the target temperature of the cold water core is the higher of the target passenger compartment air outlet temperature and the target battery temperature. The cooling proportional distribution valve in the six-way water valve is primarily based on the passenger compartment cooling circuit, dynamically adjusting the opening of the water valve corresponding to the power battery cooling circuit to achieve flow regulation and thus regulate the temperature of the power battery cooling circuit.

[0127] Among them, the corresponding relationship between the water valve opening ratio corresponding to the power battery cooling circuit and the temperature difference (the difference between the actual temperature of the cold water core and the target temperature of the cold water core) is shown in Table 3. Among them, "only the passenger compartment" means that the water valve corresponding to the power battery cooling circuit is closed, and all the coolant flows into the passenger compartment cooling circuit. "only the power battery" means that the water valve corresponding to the passenger compartment cooling circuit is closed, and all the coolant flows into the power battery cooling circuit.

[0128] Table 3

[0129]

[0130]

[0131] In one possible implementation, when in dual heating mode, the target temperature of the hot water core is the larger of the target air outlet temperature of the passenger compartment and the target water temperature of the power battery. The heating proportional distribution valve in the six-way water valve is mainly based on the passenger compartment heating circuit, and dynamically adjusts the water valve opening corresponding to the power battery heating circuit to achieve flow regulation to achieve the purpose of adjusting the temperature of the power battery heating circuit.

[0132] Among them, the corresponding relationship between the water valve opening ratio corresponding to the power battery heating circuit and the temperature difference (the difference between the actual temperature of the coolant and the target temperature) is shown in Table 4. Among them, "Only the passenger compartment" means that the water valve corresponding to the power battery heating circuit is closed, and all the coolant flows into the passenger compartment heating circuit. "Only the power battery" means that the water valve corresponding to the passenger compartment heating circuit is closed, and all the coolant flows into the power battery heating circuit.

[0133] Table 4

[0134]

[0135] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of method. In order to realize the above functions, the thermal management device or electronic device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0136] The embodiments of the present application can, according to the above method, exemplarily divide the functional modules of the thermal management device or electronic device. For example, the thermal management device or electronic device can include various functional modules corresponding to the various functional divisions, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation.

[0137] Reference Figure 9 The thermal management device 900 includes: a control module 901; the control module 901 is used to provide a first heat to the passenger compartment when the passenger compartment has a heating demand and the power battery has a cooling demand; the control module 901 is also used to provide a second heat to the passenger compartment when the passenger compartment has a heating demand, and / or, provide the second heat to the power battery when the power battery has a heating demand.

[0138] In a possible implementation, the control module 901 is further configured to control the first port and the second port to be conductive, and the third port and the fourth port to be conductive, so that the motor heat absorption circuit is conductive.

[0139] In a possible embodiment, the control module 901 is also used to control the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the second valve port to be connected when there is a demand for heating in the passenger compartment, so as to connect the passenger compartment heating circuit.

[0140] In a possible implementation, the control module 901 is further configured to control the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the third valve port to be connected when the power battery has a heating demand, so as to enable the power battery heating circuit to be turned on.

[0141] In a possible implementation, the control module 901 is further configured to control the first port and the ninth port to be connected, and the fourth valve port and the fifth valve port to be connected, so as to connect the passenger compartment refrigeration circuit when there is a demand for cooling in the passenger compartment.

[0142] In a possible implementation, the control module 901 is further configured to control the first port and the ninth port to be connected, and the fourth valve port and the sixth valve port to be connected, so as to connect the power battery cooling circuit when the power battery has a cooling demand.

[0143] In a possible implementation, the control module 901 is further configured to control the first port and the tenth port to be conductive, and the third port and the fourth port to be conductive, so that the motor heat absorption circuit is conductive when there is no heating demand for the passenger compartment and the power battery.

[0144] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0145] like Figure 10 As shown, the electronic device 1000 includes but is not limited to: a processor 1001 and a memory 1002 .

[0146] The memory 1002 is used to store executable instructions of the processor 1001. It is understandable that the processor 1001 is configured to execute instructions to implement the thermal management method in the above embodiment.

[0147] It should be noted that those skilled in the art can understand that Figure 10 The electronic device structure shown in the figure does not limit the electronic device, and the electronic device may include Figure 10 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0148] The processor 1001 is the control center of the electronic device. It uses various interfaces and lines to connect the various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 1002 and calling data stored in the memory 1002, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 1001 may include one or more processing units. Optionally, the processor 1001 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly handles wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 1001.

[0149] Memory 1002 can be used to store software programs and various data. Memory 1002 may primarily include a program storage area and a data storage area. The program storage area may store an operating system, application programs required by at least one functional module, and the like. Furthermore, memory 1002 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state memory device.

[0150] In an exemplary embodiment, a computer-readable storage medium including instructions is further provided, such as a memory 1002 including instructions. The above instructions can be executed by the processor 1001 of the electronic device 1000 to implement the thermal management method in the above embodiment.

[0151] In actual implementation, Figure 9 The functions of the control module 901 in Figure 10 The processor 1001 in the embodiment calls the computer program stored in the memory 1002. The specific execution process can be referred to the description of the thermal management method in the above embodiment, which will not be repeated here.

[0152] Optionally, the computer-readable storage medium may be a non-temporary computer-readable storage medium, for example, the non-temporary computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, etc.

[0153] In an exemplary embodiment, the present application also provides a computer program product including one or more instructions, which can be executed by the processor 1001 of the electronic device 1000 to implement the thermal management method in the above embodiment.

[0154] It should be noted that the instructions in the above computer-readable storage medium or one or more instructions in the computer program product are executed by the processor of the electronic device to implement each process of the above thermal management method embodiment, and the same technical effects as the above thermal management method can be achieved. To avoid repetition, it will not be described here.

[0155] Through the description of the above embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above division of functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete the full classification or part of the functions described above.

[0156] In several embodiments provided in the present application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0157] The units described as separate components can or can not be physically separated, and the components shown as units can be one physical unit or multiple physical units, that is, can be located in one place or can be distributed to multiple different places. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment scheme.

[0158] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The above integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0159] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the full classification part or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute the full classification part or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks or optical disks.

[0160] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A thermal management system, characterized in that: The thermal management system includes: a power battery heat exchange circuit, a motor heat absorption circuit and a controller; The power battery heat exchange circuit is used to absorb the first heat generated by the power battery during operation; The motor heat absorption circuit is used to absorb the second heat generated when the motor is running; The controller is configured to provide the first heat to the passenger compartment when the passenger compartment has a heating demand and the power battery has a cooling demand; The controller is further configured to provide the second heat to the passenger compartment when the passenger compartment has a heating demand, and / or provide the second heat to the power battery when the power battery has a heating demand.

2. The thermal management system according to claim 1, characterized in that The thermal management system further includes: a refrigerant circulation circuit, a passenger compartment heating circuit, and a power battery heating circuit; The refrigerant circulation loop includes a compressor, a high-pressure liquid cooler, a liquid storage dryer, an electronic expansion valve and a low-pressure liquid cooler connected by pipelines; The compressor is used to compress the refrigerant in the pipeline; The liquid storage dryer is used to store the refrigerant; The electronic expansion valve is used to adjust the flow rate of the refrigerant; The low-pressure liquid cooler is used to transfer the first heat from the power battery heat exchange circuit and the second heat from the motor heat absorption circuit to the high-pressure liquid cooler; The high-pressure liquid cooler is used to transfer the first heat and / or the second heat to the passenger compartment heating circuit; The high-pressure liquid cooler is further configured to transfer the second heat to the power battery heating circuit.

3. The thermal management system according to claim 2, characterized in that: The power battery heat exchange circuit includes a parallel plate heat exchanger, a first water pump and a power battery heat pipe connected by a pipeline; The power battery heat pipe is used to absorb the first heat and transfer the first heat to the parallel plate heat exchanger through the coolant in the pipe; The parallel plate heat exchanger is used to exchange the first heat with the low-pressure liquid cooler, so that the first heat is transferred to the passenger compartment through the refrigerant circulation circuit and the passenger compartment heating circuit; The first water pump is used to drive the coolant in the pipeline to flow.

4. The thermal management system according to claim 2, characterized in that: The motor heat absorption circuit includes: a second water pump, the low-pressure liquid cooler, a multi-way reversing valve and a motor heat pipe; The second water pump and the low-pressure liquid cooler are connected through a pipeline; The low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; The second port of the multi-way reversing valve is connected to the motor heat pipe through a pipeline; The motor heat pipe is connected to the third port of the multi-way reversing valve through a pipeline; The fourth port of the multi-way reversing valve is connected to the second water pump through a pipeline; The motor heat pipe is used to absorb the second heat and transfer the second heat to the low-pressure liquid cooler through the coolant in the pipe; The second water pump is used to drive the coolant in the pipeline to flow; The controller is further configured to control the first port and the second port to be conductive, and the third port and the fourth port to be conductive, so that the motor heat absorption circuit is conductive.

5. The thermal management system according to claim 3, characterized in that: The passenger compartment heating circuit includes: a third water pump, the high-pressure liquid cooler, the multi-way reversing valve, a six-way proportional valve and a hot water core; The third water pump is connected to the high-pressure liquid cooler through a pipeline; The high-pressure liquid cooler is connected to the fifth port of the multi-way reversing valve through a pipeline; The sixth port of the multi-way reversing valve is connected to the first valve port of the six-way proportional valve through a pipeline; The second valve port of the six-way proportional valve is connected to the hot water core through a pipeline; The hot water core is connected to the seventh port of the multi-way reversing valve through a pipeline; The eighth port of the multi-way reversing valve is connected to the third water pump through a pipeline; The third water pump is used to drive the coolant in the pipeline to flow; The high-pressure liquid cooler is used to transfer the first heat and / or the second heat to the hot water core; The hot water core is used to exchange the first heat and / or the second heat to the passenger compartment; The controller is also used to control the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the second valve port to be connected when there is a heating demand in the passenger compartment, so as to make the passenger compartment heating circuit conductive.

6. The thermal management system according to claim 3, characterized in that: The power battery heating circuit includes a third water pump, the high-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and the parallel plate heat exchanger connected by a pipeline; The third water pump is connected to the high-pressure liquid cooler through a pipeline; The high-pressure liquid cooler is connected to the fifth port of the multi-way reversing valve through a pipeline; The sixth port of the multi-way reversing valve is connected to the first valve port of the six-way proportional valve through a pipeline; The third valve port of the six-way proportional valve is connected to the parallel plate heat exchanger through a pipeline; The parallel plate heat exchanger is connected to the seventh port of the multi-way reversing valve through a pipeline; The eighth port of the multi-way reversing valve is connected to the third water pump through a pipeline; The high-pressure liquid cooler is specifically used to transfer the second heat to the parallel plate heat exchanger; The parallel plate heat exchanger is further used to transfer the second heat to the power battery heat exchange circuit to provide heat to the power battery; The controller is further configured to control the fifth port and the sixth port to be connected, the seventh port and the eighth port to be connected, and the first valve port and the third valve port to be connected when the power battery has a heating demand, so as to connect the power battery heating circuit.

7. The thermal management system according to claim 2, wherein: The thermal management system further includes: a passenger compartment refrigeration circuit; The passenger compartment refrigeration circuit includes: a second water pump, the low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a cold water core; The second water pump is connected to the low-pressure liquid cooler through a pipeline; The low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; The ninth port of the multi-way reversing valve is connected to the fourth valve port of the six-way proportional valve through a pipeline; The fifth valve port of the six-way proportional valve is connected to the cold water core through a pipeline; The cold water core is connected to the second water pump through a pipeline; The second water pump is used to drive the coolant in the pipeline to flow; The low-pressure liquid cooler is also used to reduce the heat of the cold water core through the refrigerant circulation loop; The cold water core is used to reduce the heat of the passenger compartment; The controller is further configured to control the first port and the ninth port to be connected, and the fourth valve port and the fifth valve port to be connected when there is a demand for cooling in the passenger compartment, so as to connect the passenger compartment refrigeration circuit.

8. The thermal management system according to claim 2, wherein: The thermal management system further includes: a power battery refrigeration circuit; The power battery refrigeration circuit includes: a second water pump, the low-pressure liquid cooler, a multi-way reversing valve, a six-way proportional valve and a parallel plate heat exchanger; The second water pump is connected to the low-pressure liquid cooler through a pipeline; The low-pressure liquid cooler is connected to the first port of the multi-way reversing valve through a pipeline; The ninth port of the multi-way reversing valve is connected to the fourth valve port of the six-way proportional valve through a pipeline; The sixth valve port of the six-way proportional valve is connected to the parallel plate heat exchanger through a pipeline; The parallel plate heat exchanger is connected to the second water pump through a pipeline; The second water pump is used to drive the coolant in the pipeline to flow; The low-pressure liquid cooler is also used to reduce the heat of the parallel plate heat exchanger through the refrigerant circulation loop; The parallel plate heat exchanger is also used to reduce the temperature of the coolant in the power battery heat exchange circuit to cool the power battery; The controller is further configured to control the first port and the ninth port to be connected, and the fourth valve port and the sixth valve port to be connected, so as to connect the power battery refrigeration circuit when the power battery has a cooling demand.

9. The thermal management system according to claim 4, characterized in that: The motor heat absorption circuit further includes: a radiator; The tenth port of the multi-way reversing valve is connected to the radiator through a pipeline; The radiator is connected to the motor heat pipe through a pipeline; The radiator is used to dissipate the heat in the motor heat absorption circuit into the air; The controller is further configured to control the first port and the tenth port to be conductive, and the third port and the fourth port to be conductive, so that the motor heat absorption circuit is conductive when there is no heating demand for the passenger compartment and the power battery.

10. A thermal management method, characterized in that: The thermal management method is applied to a controller in a thermal management system, wherein the thermal management system further comprises: a power battery heat exchange circuit and a motor heat absorption circuit, wherein the power battery heat exchange circuit is used to absorb a first heat generated when the power battery is running, and the motor heat absorption circuit is used to absorb a second heat generated when the motor is running. The thermal management method comprises: When the passenger compartment has a heating demand and the power battery has a cooling demand, providing the first heat to the passenger compartment; When the passenger compartment has a heating demand, the second heat is provided to the passenger compartment, and / or when the power battery has a heating demand, the second heat is provided to the power battery.

11. A vehicle, characterized in that: The vehicle comprises a thermal management system according to any one of claims 1-9.

12. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the thermal management method according to claim 10.

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