Thermal management system of vehicle and vehicle

Abstract

The invention provides a heat management system of a vehicle and the vehicle, and the system comprises a parking heating loop which comprises a first water pump, a plate heat exchanger and a parking heater; in the parking heating loop, the first end of a first water pump communicates with the second end of the first water pump through the parking heater and the high-temperature side of the plate heat exchanger. The system can heat a vehicle-mounted battery or an engine by adopting a parking heating loop when a vehicle is in a low-temperature state for a long time in a cold or even extremely cold area, so that normal starting of a battery pack and the engine is ensured, and the problem of poor battery endurance caused by high-voltage electric heating on the battery when the battery and the engine are started in a low-temperature environment is solved.

Description

Technical Field

[0001] The present application relates to the field of thermal management technology, and in particular to a thermal management system of a vehicle and a vehicle. Background Art

[0002] The current automotive industry is committed to researching ways to reduce vehicle energy consumption to adapt to the increasingly severe energy crisis, including the development of new energy vehicles and new heating technologies, but these are often costly.

[0003] When the vehicle is driven in winter, the battery's range reduction has always troubled the OEMs. The low-temperature insulation of the battery, the heating of the battery, the heating of the passenger compartment, and the low-temperature starting of the engine increase the vehicle's energy consumption. Therefore, it is necessary to improve the energy utilization of the battery and the passenger compartment heating so that the vehicle has a longer range with the same amount of electricity and fuel, making it more competitive. Especially for hybrid electric vehicles in cold and extremely cold areas, battery insulation, battery heating, passenger compartment heating needs and engine cold start are more valued. Low-temperature engine starting and battery insulation rely on high-voltage battery packs to be heated at high voltage multiple times to maintain the battery pack temperature to ensure that the engine can start normally. A large amount of electricity is consumed in severe cold weather. If the vehicle is in a low-temperature state for a long time, the vehicle will be powered off and cannot be used normally. Even if the vehicle is fully fueled, it still cannot be used normally. The vehicle can only be started after being plugged in for charging, causing user complaints, or relying on the plug-in power preservation strategy. Vehicle air conditioning heating in low-temperature environments is completed by engine coolant heating and air conditioning electric heater (PTC) heating. Additional electrical energy is consumed when heating the medium and converting electrical energy into heat energy. Additional electricity is required to ensure the comfort of the passenger compartment after the vehicle is refrigerated in severe cold seasons. Summary of the invention

[0004] The present application provides a vehicle thermal management system and a vehicle to solve the problem of poor battery life caused by the need to consume extra electric energy for heating when starting the battery and engine in a low-temperature environment.

[0005] In a first aspect, the present application provides a thermal management system for a vehicle, comprising: a parking heating circuit;

[0006] The parking heating circuit includes a first water pump, a plate heat exchanger and a parking heater; wherein the parking heater is connected to the fuel system of the vehicle and generates heat by burning fuel;

[0007] In the parking heating circuit, the first end of the first water pump is connected to the second end of the first water pump through the parking heater and the high temperature side of the plate heat exchanger;

[0008] The parking heating circuit is used to heat the battery, the electric motor, the engine and / or the passenger compartment of the vehicle.

[0009] In a possible implementation manner, the parking heating circuit further includes a second three-way pipe and a second three-way proportional valve;

[0010] In the parking heating circuit, a first end of the first water pump is communicated with a first end of the parking heater, a second end of the parking heater is communicated with a first end of the second three-way pipe, a second end of the second three-way pipe is communicated with a third end of the second three-way proportional valve, a first end of the second three-way proportional valve is connected to a first end of a high-temperature side of the plate heat exchanger, and a second end of the high-temperature side of the plate heat exchanger is communicated with a second end of the first water pump.

[0011] In a possible implementation manner, the parking heating circuit further includes a second three-way pipe, a first three-way pipe, a first three-way proportional valve and a second three-way proportional valve;

[0012] In the parking heating circuit, the first end of the first water pump is communicated with the third end of the first three-way proportional valve, the first end of the first three-way proportional valve is communicated with the first end of the high-temperature side of the plate heat exchanger, the second end of the high-temperature side of the plate heat exchanger is communicated with the first end of the first three-way pipe, the second end of the first three-way pipe is communicated with the first end of the parking heater, the second end of the parking heater is communicated with the second end of the first water pump, the second end of the first three-way proportional valve is communicated with the first end of the second three-way proportional valve, the third end of the second three-way proportional valve is communicated with the second end of the second three-way pipe, and the first end of the second three-way pipe is communicated with the third end of the first three-way pipe.

[0013] In a possible implementation, the system further includes a battery heating circuit;

[0014] The battery heating circuit includes a battery, a fourth water pump, the plate heat exchanger and a refrigerant heat exchanger;

[0015] In the battery heating circuit, the outlet of the fourth water pump is sequentially connected to the circulating fluid pipeline of the battery, the low temperature side of the plate heat exchanger, the water side of the refrigerant heat exchanger, and the inlet of the fourth water pump.

[0016] In a possible implementation, the system further includes a motor heating circuit;

[0017] The motor heating circuit includes a motor system, a fifth water pump, the plate heat exchanger and the refrigerant heat exchanger;

[0018] In the motor heating circuit, the outlet of the fifth water pump is connected to the inlet of the fifth water pump through the circulating liquid pipeline of the motor system, the low temperature side of the plate heat exchanger and the water side of the refrigerant heat exchanger in sequence.

[0019] In one possible embodiment, the system further includes a first passenger compartment heating circuit;

[0020] The first passenger compartment heating circuit includes a second water pump, a PTC heater, a heater core, the second three-way proportional valve, the first three-way proportional valve, the first water pump, the parking heater, the first three-way pipe and the second three-way pipe;

[0021] In the first passenger compartment heating circuit, the first end of the second water pump is communicated with the first end of the PTC heater, the second end of the PTC heater is communicated with the first end of the heater core, the second end of the heater core is communicated with the second end of the second three-way proportional valve, the first end of the second three-way proportional valve is communicated with the second end of the first three-way proportional valve, the third end of the first three-way proportional valve is communicated with the first end of the first water pump, the second end of the first water pump is communicated with the second end of the parking heater, the first end of the parking heater is communicated with the second end of the first three-way pipe, the third end of the first three-way pipe is communicated with the first end of the second three-way pipe, and the third end of the second three-way pipe is communicated with the second end of the second water pump.

[0022] In a possible implementation, the system further includes a first heating circuit;

[0023] The first heating circuit includes a second water pump, a PTC heater, a heater core, the second three-way proportional valve, the first three-way proportional valve, the first water pump, the parking heater, the first three-way pipe, the second three-way pipe, a third water pump and an engine;

[0024] In the first heating circuit, the first end of the second water pump is communicated with the first end of the PTC heater, the second end of the PTC heater is communicated with the first end of the heater core, the second end of the heater core is communicated with the second end of the second three-way proportional valve, the first end of the second three-way proportional valve is communicated with the second end of the first three-way proportional valve, the third end of the first three-way proportional valve is communicated with the first end of the first water pump, the second end of the first water pump is communicated with the second end of the parking heater, the first end of the parking heater is communicated with the second end of the first three-way pipe, the third end of the first three-way pipe is communicated with the first end of the second three-way pipe, the third end of the second three-way pipe is communicated with the first end of the third water pump, the second end of the third water pump is communicated with the first end of the circulating fluid pipeline of the engine, and the second end of the circulating fluid pipeline of the engine is communicated with the second end of the second water pump.

[0025] In one possible embodiment, the system further includes a second passenger compartment heating circuit;

[0026] In the second passenger compartment heating circuit, the third passenger compartment heating circuit includes a second water pump, a PTC heater, a heater core, the second three-way proportional valve, the first three-way proportional valve, a plate heat exchanger, a first three-way pipe, and a second three-way pipe;

[0027] In the second passenger compartment heating circuit, the first end of the second water pump is connected to the second end of the second three-way proportional valve through the PTC heater and the heater core in sequence, the first end of the second three-way proportional valve is connected to the second end of the first three-way proportional valve, the first end of the first three-way proportional valve is connected to the first end of the high-temperature side of the plate heat exchanger, the second end of the high-temperature side of the plate heat exchanger is connected to the first end of the first three-way pipe, the third end of the first three-way pipe is connected to the first end of the second three-way pipe, and the third end of the second three-way pipe is connected to the second end of the second water pump.

[0028] In one possible implementation, the system further includes a third passenger compartment heating circuit and an EGR waste heat recovery circuit;

[0029] The third passenger compartment heating circuit includes a third water pump, an engine, a second water pump, a PTC heater, a heater core, a second three-way proportional valve and a second three-way pipe;

[0030] In the third passenger compartment heating circuit, the first end of the third water pump is connected to the second end of the second three-way proportional valve through the circulating fluid pipeline of the engine, the second water pump, the PTC heater, and the heater core in sequence, the third end of the second three-way proportional valve is connected to the second end of the second three-way pipe, and the third end of the second three-way pipe is connected to the second end of the third water pump;

[0031] The EGR waste heat recovery loop includes a third water pump, an exhaust gas recirculation system and a turbocharger;

[0032] In the EGR waste heat recovery circuit, after the first end of the third water pump is connected to the engine, it is connected to the second end of the third water pump through the exhaust gas recirculation system and the turbocharger respectively.

[0033] In one possible implementation, the system further includes a fourth passenger compartment heating circuit and an EGR waste heat recovery circuit;

[0034] The fourth passenger compartment heating circuit includes a third water pump, an engine, a second water pump, a PTC heater, a heater core, a second three-way proportional valve, a first three-way proportional valve, a plate heat exchanger, a first three-way pipe and a second three-way pipe;

[0035] In the fourth passenger compartment heating circuit, the first end of the third water pump is communicated with the second end of the second three-way proportional valve through the circulating fluid pipeline of the engine, the second water pump, the PTC heater, and the heater core in sequence, the first end of the second three-way proportional valve is communicated with the second end of the first three-way proportional valve, the first end of the first three-way proportional valve is communicated with the first end of the high-temperature side of the plate heat exchanger, the second end of the high-temperature side of the plate heat exchanger is communicated with the first end of the first three-way pipe, the third end of the first three-way pipe is communicated with the first end of the second three-way pipe, and the third end of the second three-way pipe is communicated with the second end of the third water pump;

[0036] The EGR waste heat recovery loop includes a third water pump, an exhaust gas recirculation system and a turbocharger;

[0037] In the EGR waste heat recovery circuit, after the first end of the third water pump is connected to the engine, it is connected to the second end of the third water pump through the exhaust gas recirculation system and the turbocharger respectively.

[0038] In one possible embodiment, the parking heating circuit is used to heat the passenger compartment;

[0039] The parking heating circuit also includes a second water pump, a PTC heater and a heater core;

[0040] In the parking heating circuit, the second end of the first water pump is connected to the first end of the first water pump in sequence through the parking heater, the second three-way pipe, the second water pump, the PTC heater, the heater core, the second three-way proportional valve and the high-temperature side of the plate heat exchanger.

[0041] In a possible implementation, the system further includes a second heating circuit;

[0042] The second heating circuit includes the first water pump, the parking heater, the plate heat exchanger, the second three-way pipe, a second three-way proportional valve, a third water pump, an engine, a second water pump, a PTC heater and a heater core;

[0043] In the second heating circuit, the second end of the first water pump is connected to the first end of the first water pump through the parking heater, the second three-way pipe, the third water pump, the circulating fluid pipeline of the engine, the second water pump, the PTC heater, the heater core, the second three-way proportional valve and the high-temperature side of the plate heat exchanger in sequence.

[0044] In a possible implementation, the system further includes an EGR waste heat recovery loop;

[0045] The EGR waste heat recovery loop includes a third water pump, an exhaust gas recirculation system and a turbocharger;

[0046] In the EGR waste heat recovery circuit, after the first end of the third water pump is connected to the engine, it is connected to the second end of the third water pump through the exhaust gas recirculation system and the turbocharger respectively.

[0047] In a second aspect, the present application provides a vehicle, comprising the vehicle thermal management system described in any one of the first aspects above.

[0048] The embodiment of the present application provides a thermal management system for a vehicle, the system includes a parking heating circuit, the parking heating circuit includes a first water pump, a plate heat exchanger and a parking heater; in the parking heating circuit, the first end of the first water pump is connected to the second end of the first water pump through the parking heater and the high temperature side of the plate heat exchanger. The system can use the parking heating circuit to heat the vehicle battery or engine when the vehicle is in a low temperature state for a long time in cold or even extremely cold areas, to ensure the normal start of the battery pack and the engine, and avoid the problem of poor battery life caused by frequent high-voltage electric heating of the battery and the engine when the battery and engine are started in a low temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0050] Figure 1 It is a schematic diagram of the structure of a thermal management system of a vehicle in parallel mode provided in an embodiment of the present application;

[0051] Figure 2 It is a schematic diagram of the structure of a thermal management system for a series-connected vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0053] In order to make the purpose, technical solutions and advantages of the present application clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0054] Figure 1 This is a schematic diagram of the structure of a vehicle thermal management system in parallel connection mode provided in an embodiment of the present application. Figure 1 As shown, the thermal management system of the vehicle includes: a parking heating circuit;

[0055] The parking heating circuit includes a first water pump 8, a plate heat exchanger 26 and a parking heater 9; wherein the parking heater 9 is connected to the fuel system of the vehicle and generates heat by burning fuel;

[0056] In the parking heating circuit, the first end of the first water pump 8 is connected to the second end of the first water pump 8 through the parking heater 9 and the high temperature side of the plate heat exchanger 26;

[0057] The parking heating circuit is used to heat the battery, the electric motor, the engine and / or the passenger compartment of the vehicle.

[0058] In this embodiment, the parking heating circuit further includes a first three-way proportional valve 48 and a first three-way pipe 52 .

[0059] Specifically, the parking heater 9 is a heating system independent of the vehicle engine, which uses the heat generated by burning fuel to heat the coolant or air, thereby providing the vehicle with warm air and preheating the engine. This system usually uses gasoline or diesel as fuel, ignites the fuel through the combustion chamber, and the heat generated is transferred to the coolant through the heat exchanger, and then the coolant circulates in the vehicle to warm the interior of the vehicle.

[0060] In the parking heating circuit, the first end of the first water pump 8 is connected to the port 3 of the first three-way proportional valve 48, the port 1 of the first three-way proportional valve 48 is connected to one end of the high temperature side of the plate heat exchanger 26, the second end of the high temperature side of the plate heat exchanger 26 is connected to one port of the first three-way pipe 52, the other port of the first three-way pipe 52 is connected to the second end of the parking heater 9, and the first end of the parking heater 9 is connected to the second end of the first water pump 8. When the parking heating circuit is working, the first water pump 8, the parking heater 9 and the plate heat exchanger 26 are all working, and the first port and the third port of the first three-way proportional valve 48 are connected.

[0061] It can be seen from the above embodiments that the vehicle thermal management system provided in this embodiment can use a parking heating circuit to heat the vehicle battery or engine when the vehicle is in a low temperature environment for a long time in cold or even extremely cold areas, thereby ensuring the normal starting of the battery pack and the engine and avoiding the problem of poor battery life caused by the need for high-voltage electric heating on the battery when starting the battery and the engine in a low temperature environment.

[0062] In one possible implementation, reference Figure 1, the parking heating circuit further includes a second three-way pipe 53, a first three-way pipe 52, a first three-way proportional valve 48 and a second three-way proportional valve 47;

[0063] In the parking heating circuit, the first end of the first water pump 8 is communicated with the third end of the first three-way proportional valve 48, the first end of the first three-way proportional valve 48 is communicated with the first end of the high-temperature side of the plate heat exchanger 26, the second end of the high-temperature side of the plate heat exchanger 26 is communicated with the first end of the first three-way pipe 52, the second end of the first three-way pipe 52 is communicated with the first end of the parking heater 9, the second end of the parking heater 9 is communicated with the second end of the first water pump 8, the second end of the first three-way proportional valve 48 is communicated with the first end of the second three-way proportional valve 47, the third end of the second three-way proportional valve 47 is communicated with the second end of the second three-way pipe 53, and the first end of the second three-way pipe 53 is communicated with the third end of the first three-way pipe 52.

[0064] In one possible implementation, Figure 1 As shown, the system further includes a battery heating circuit;

[0065] The battery heating circuit includes a battery 12, a fourth water pump 11, the plate heat exchanger 26 and a refrigerant heat exchanger 10;

[0066] In the battery heating circuit, the outlet of the fourth water pump 11 is connected to the circulating fluid pipeline of the battery 12 , the low temperature side of the plate heat exchanger 26 , the water side of the refrigerant heat exchanger 10 , and the inlet of the fourth water pump 11 in sequence.

[0067] In this embodiment, the battery heating circuit further includes a third three-way pipe 33 , a first three-way solenoid valve 32 and a fifth three-way pipe 29 .

[0068] Specifically, in the battery heating circuit, the outlet of the fourth water pump 11 is connected to one end of the third three-way pipe 33, the other end of the third three-way pipe 33 is connected to the port 3 of the first three-way solenoid valve 32 through the circulating liquid pipeline of the battery 12, the port 2 of the first three-way solenoid valve 32 is connected to one end of the low-pressure side of the plate heat exchanger 26, the other end of the low-pressure side of the plate heat exchanger 26 is connected to one end of the water side of the refrigerant heat exchanger chiller, the other end of the water side of the refrigerant heat exchanger 10 is connected to one end of the fifth three-way pipe 29, and the other end of the fifth three-way pipe 29 is connected to the inlet of the fourth water pump 11.

[0069] Specifically, the vehicle thermal management system provided in this embodiment can heat the battery 12 with the heat provided by the parking heater 9 in cold and extremely cold regions to ensure the normal operating temperature of the battery pack by controlling the parking heating circuit and the battery heating circuit. When the parking heating circuit is working, the fourth water pump 11, the plate heat exchanger 26 and the refrigerant heat exchanger 10 are working, the port 1 and the port 3 of the first three-way proportional valve 48 are connected, and the port 2 is closed. When the battery heating circuit is working, the port 2 and the port 3 of the first three-way solenoid valve 32 are connected, and the port 1 is closed.

[0070] In one possible implementation, Figure 1 As shown, the system also includes a motor heating circuit;

[0071] The motor heating circuit includes a motor system, a fifth water pump 5, the plate heat exchanger 26 and a refrigerant heat exchanger 10;

[0072] In the motor heating circuit, the outlet of the fifth water pump 5 is connected to the inlet of the fifth water pump 5 through the circulating liquid pipeline of the motor system, the low temperature side of the plate heat exchanger 26 and the water side of the refrigerant heat exchanger 10 in sequence.

[0073] In this embodiment, the motor heating circuit further includes a second three-way solenoid valve 31, a first three-way solenoid valve 32, a fourth three-way pipe 30 and a fifth three-way pipe 29. In addition, the motor system includes a FMCU, a motor 6, an OBC&DC / DC28 and a P4 three-in-one; the motor heating circuit further includes an oil cooler 7.

[0074] Specifically, in the motor heating circuit, the outlet of the fifth water pump 5 is connected to the oil cooler 7 through the circulating liquid pipeline of the motor system, the oil cooler 7 is connected to the port 2 of the second three-way solenoid valve 31, the port 3 of the second three-way solenoid valve 31 is connected to the port 1 of the first three-way solenoid valve 32, the port 2 of the first three-way solenoid valve 32 is connected to one end of the low-temperature side of the plate heat exchanger 26, the other end of the low-temperature side of the plate heat exchanger 26 is connected to one end of the water side of the refrigerant heat exchanger 10, the other end of the water side of the refrigerant heat exchanger 10 is connected to one end of the fifth three-way pipe 29, the third end of the fifth three-way pipe 29 is connected to one end of the fourth three-way pipe 30, and the other end of the fourth three-way pipe 30 is connected to the inlet of the fifth water pump 5.

[0075] In this embodiment, the vehicle thermal management system provided by this embodiment can heat the motor in cold and extremely cold regions by controlling the parking heating circuit and the motor heating circuit to ensure the normal operation of the motor. When the parking heating circuit is working, the first three-way proportional valve 48 is connected between port 1 and port 3, and port 2 is closed. When the motor heating circuit is working, the second three-way solenoid valve 31 is connected between port 2 and port 3, and port 1 is closed. The first three-way solenoid valve 32 is connected between port 2 and port 1, and port 3 is closed.

[0076] In one embodiment, the thermal management system of the vehicle also includes a motor liquid cooling circuit, in which one end of the circulating liquid pipeline of the motor system is connected to the other end of the circulating liquid pipeline of the motor system through the oil cooler 7, the second three-way solenoid valve 31, the low-temperature radiator 1, the overflow tank 4, the fourth three-way pipe 30, and the fifth water pump 5 in sequence.

[0077] In one possible implementation, Figure 1 As shown, the system further includes a first passenger compartment heating circuit;

[0078] The first passenger compartment heating circuit includes a second water pump 16, a PTC heater 15, a heater core 14, the second three-way proportional valve 47, the first three-way proportional valve 48, the first water pump 8, the parking heater 9, the first three-way pipe 52 and the second three-way pipe 53;

[0079] In the first passenger compartment heating circuit, the first end of the second water pump 16 is communicated with the first end of the PTC heater 15, the second end of the PTC heater 15 is communicated with the first end of the heater core 14, the second end of the heater core 14 is communicated with the second end of the second three-way proportional valve 47, the first end of the second three-way proportional valve 47 is communicated with the second end of the first three-way proportional valve 48, the third end of the first three-way proportional valve 48 is communicated with the first end of the first water pump 8, the second end of the first water pump 8 is communicated with the second end of the parking heater 9, the first end of the parking heater 9 is communicated with the second end of the first three-way pipe 52, the third end of the first three-way pipe 52 is communicated with the first end of the second three-way pipe 53, and the third end of the second three-way pipe 53 is communicated with the second end of the second water pump 16.

[0080] In the present embodiment, the first passenger compartment heating circuit further includes a sixth three-way pipe 60 , a third three-way solenoid valve 54 , a seventh three-way pipe 57 , an eighth three-way pipe 56 and a fourth three-way solenoid valve 55 .

[0081] In the first passenger compartment heating circuit, a first end of the second water pump 16 is connected to one end of a PTC (Positive Temperature Coefficient) heater, the other end of the PTC heater 15 is connected to one end of a sixth three-way pipe 60, the other end of the sixth three-way pipe 60 is connected to one end of a heater core 14, the other end of the heater core 14 is connected to port 2 of a second three-way proportional valve 47, port 1 of the second three-way proportional valve 47 is connected to port 2 of a first three-way proportional valve 48, port 3 of the first three-way proportional valve 48 is connected to a first water pump 8, the first water pump 8 is connected to a parking heater 9, the parking heater 9 is connected to port 1 of a third three-way solenoid valve 54 through a first three-way pipe 52 and a second three-way pipe 53, port 2 of the third three-way solenoid valve 54 is connected to port 2 of a fourth three-way solenoid valve 55 through a seventh three-way pipe 57 and an eighth three-way pipe 56, and port 3 of the fourth three-way solenoid valve 55 is connected to a second end of the second water pump 16.

[0082] In this embodiment, when the first passenger compartment heating circuit is working, the second water pump 16 and the parking heater 9 are working, the first water pump is not working, the second three-way proportional valve 47 has ports 1 and 2 connected, and port 3 is closed; the first three-way proportional valve 48 has ports 2 and 3 opened, and port 1 closed; the third three-way solenoid valve 54 has ports 1 and 2 connected, and port 3 is closed; the fourth three-way solenoid valve 55 has ports 2 and 3 connected, and port 1 is closed. The first passenger compartment heating circuit is working, and the parking heater 9 can be used to heat the passenger compartment.

[0083] In one possible implementation, Figure 1 As shown, the first heating circuit includes a second water pump 16, a PTC (Positive Temperature Coefficient) heater, a heater core 14, the second three-way proportional valve 47, the first three-way proportional valve 48, the first water pump 8, the parking heater 9, the first three-way pipe 52, the second three-way pipe 53, a third water pump 22 and an engine 21;

[0084] In the first heating circuit, a first end of the second water pump 16 is communicated with a first end of the PTC heater 15, a second end of the PTC heater 15 is communicated with a first end of the heater core 14, a second end of the heater core 14 is communicated with a second end of the second three-way proportional valve 47, a first end of the second three-way proportional valve 47 is communicated with a second end of the first three-way proportional valve 48, a third end of the first three-way proportional valve 48 is communicated with a first end of the first water pump 8, a second end of the first water pump 8 is communicated with a second end of the parking heater 9, a first end of the parking heater 9 is communicated with a second end of the first three-way pipe 52, a third end of the first three-way pipe 52 is communicated with a first end of the second three-way pipe 53, a third end of the second three-way pipe 53 is communicated with a first end of the third water pump 22, a second end of the third water pump 22 is communicated with a first end of a circulating fluid pipeline of the engine 21, and a second end of the circulating fluid pipeline of the engine 21 is communicated with a second end of the second water pump 16.

[0085] In this embodiment, the first heating circuit further includes a thermostat 20 , a sixth three-way pipe 60 , a third three-way solenoid valve 54 , a seventh three-way pipe 57 , an eighth three-way pipe 56 and a fourth three-way solenoid valve 55 .

[0086] Specifically, in the first heating circuit, a first end of the second water pump 16 is connected to one end of the PTC heater 15, and the other end of the PTC heater 15 is connected to the heater core 14 through the sixth three-way pipe 60. The heater core 14 is connected to the port 2 of the second three-way proportional valve 47, and the port 1 of the second three-way proportional valve 47 is connected to the port 2 of the first three-way proportional valve 48. The port 3 of the first three-way proportional valve 48 is connected to the first water pump 8, and the first water pump 8 is connected to the parking heater 9. The parking heater 9 is connected to the port 1 of the third three-way solenoid valve 54 through the first three-way pipe 52 and the second three-way pipe 53, and the port 3 of the third three-way solenoid valve 54 is connected to the third water pump 22. The third water pump 22 is connected to the engine 21, and the engine 21 is connected to the thermostat 20. The thermostat 20 is connected to the port 2 of the fourth three-way solenoid valve 55 through the seventh three-way pipe 57 and the eighth three-way pipe 56, and the port 3 of the fourth three-way solenoid valve 55 is connected to the second end of the second water pump 16.

[0087] When the first heating circuit is working, port 1 and port 2 of the second three-way proportional valve 47 are connected, and port 3 is closed; port 2 and port 3 of the first three-way proportional valve 48 are connected, and port 1 is closed; port 1 and port 3 of the third three-way solenoid valve 54 are connected, and port 2 is closed; port 2 and port 3 of the fourth three-way solenoid valve 55 are connected, and port 1 is closed.

[0088] When the first heating circuit is working, the second water pump 16, the PTC heater 15, the heater core 14, and the parking heater 9 are all working, and the first water pump 8, the third water pump, the engine 21, and the thermostat 20 are not working. The first heating circuit can heat the engine 21 and the passenger compartment through the parking heater 9 and the PTC heater 15. The PTC heater 15 can also be controlled not to work, so that the parking heater 9 heats the engine 21 and the passenger compartment alone.

[0089] In one possible implementation, Figure 1 As shown, the system further includes a second passenger compartment heating circuit;

[0090] The second passenger compartment heating circuit includes a second water pump 16, a PTC heater 15, a heater core 14, the second three-way proportional valve 47, the first three-way proportional valve 48, a plate heat exchanger 26, a first three-way pipe 52 and a second three-way pipe 53;

[0091] In the second passenger compartment heating circuit, the first end of the second water pump 16 is connected to the second end of the second three-way proportional valve 47 through the PTC heater 15 and the heater core 14 in sequence, the first end of the second three-way proportional valve 47 is connected to the second end of the first three-way proportional valve 48, the first end of the first three-way proportional valve 48 is connected to the first end of the high-temperature side of the plate heat exchanger 26, the second end of the high-temperature side of the plate heat exchanger 26 is connected to the first end of the first three-way pipe 52, the third end of the first three-way pipe 52 is connected to the first end of the second three-way pipe 53, and the third end of the second three-way pipe 53 is connected to the second end of the second water pump 16.

[0092] In this embodiment, the second passenger compartment heating circuit also includes a sixth three-way pipe 60, a second three-way proportional valve 47, a first three-way proportional valve 48, a first three-way pipe 52, a second three-way pipe 53, a third three-way solenoid valve 54, a seventh three-way pipe 57, an eighth three-way pipe 56 and a fourth three-way solenoid valve 55.

[0093] Specifically, in the second passenger compartment heating circuit, the first end of the second water pump 16 is connected to the PTC heater 15, the PTC heater 15 is connected to the heater core 14 through the sixth three-way pipe 60, the heater core 14 is connected to port 2 of the second three-way proportional valve 47, port 1 of the second three-way proportional valve 47 is connected to port 2 of the first three-way proportional valve 48, port 1 of the first three-way proportional valve 48 is connected to one end of the high-temperature side of the plate heat exchanger 26, the other end of the high-temperature side of the plate heat exchanger 26 is connected to port 1 of the third three-way solenoid valve 54 through the first three-way pipe 52 and the second three-way pipe 53, port 2 of the third three-way solenoid valve 54 is connected to port 2 of the fourth three-way solenoid valve 55 through the seventh three-way pipe 57 and the eighth three-way pipe 56, and port 3 of the fourth three-way solenoid valve 55 is connected to the second end of the second water pump 16.

[0094] In this embodiment, in the second passenger compartment heating circuit, the second water pump 16, the PTC heater 15, the heater core 14 and the plate heat exchanger 26 are all in operation. Figure 1 When the parking heating circuit, the motor heating circuit, the battery heating circuit and the second passenger compartment heating circuit are operated simultaneously, the parking heater 9 and the PTC heater 15 can uniformly heat the battery 12, the motor and the passenger compartment.

[0095] In this embodiment, the parking heating circuit, the motor heating circuit, the battery heating circuit and the first heating circuit can work simultaneously, so that the parking heater 9 or (parking heater 9 + PTC heater 15) uniformly heats the battery 12, the motor, the engine 21 and the passenger compartment.

[0096] In one possible implementation, Figure 1 As shown, the system further includes a third passenger compartment heating circuit and an EGR waste heat recovery circuit;

[0097] The third passenger compartment heating circuit includes a third water pump 22, an engine 21, a second water pump 16, a PTC heater 15, a heater core 14, a second three-way proportional valve 47 and a second three-way pipe 53;

[0098] In the third passenger compartment heating circuit, the first end of the third water pump 22 is connected to the second end of the second three-way proportional valve 47 through the circulating fluid pipeline of the engine 21, the second water pump 16, the PTC heater 15, and the heater core 14 in sequence, the third end of the second three-way proportional valve 47 is connected to the second end of the second three-way pipe 53, and the third end of the second three-way pipe 53 is connected to the second end of the third water pump 22;

[0099] The EGR waste heat recovery loop includes a third water pump 22, an engine 21, an exhaust gas recirculation system 24 and a turbocharger 23;

[0100] In the EGR waste heat recovery circuit, after the first end of the third water pump 22 is connected to the engine 21, it is connected to the second end of the third water pump 22 through the exhaust gas recirculation system 34 and the turbocharger 23 respectively.

[0101] Specifically, the third passenger compartment heating circuit further includes a seventh three-way pipe 57 , an eighth three-way pipe 56 , a fourth three-way solenoid valve 55 , a sixth three-way pipe 60 and a third three-way solenoid valve 54 .

[0102] In the third passenger compartment heating circuit, the first end of the third water pump 22 is connected to the circulating fluid pipeline of the engine 21, the circulating fluid pipeline of the engine 21 is connected to the thermostat 20, the thermostat 20 is connected to the port 2 of the fourth three-way solenoid valve 55 through the seventh three-way pipe 57 and the eighth three-way pipe 56, the port 3 of the fourth three-way solenoid valve 55 is connected to the second water pump 16, the second water pump 16 is connected to the PTC heater 15, the PTC heater 15 is connected to the heater core 14 through the sixth three-way pipe 60, the heater core 14 is connected to the port 2 of the second three-way proportional valve 47, the port 3 of the second three-way proportional valve 47 is connected to the port 1 of the third three-way solenoid valve 54 through the second three-way pipe 53, and the port 3 of the third three-way solenoid valve 54 is connected to the second end of the third water pump 22.

[0103] When the third passenger compartment heating circuit is working, ports 1 and 3 of the third three-way solenoid valve 54 are connected, and port 2 is closed; ports 2 and 3 of the fourth three-way solenoid valve 55 are connected, and port 1 is closed; ports 2 and 3 of the second three-way proportional valve 47 are connected, and port 1 is closed.

[0104] When the third passenger compartment heating circuit is working, the third water pump 22, the engine 21, the thermostat 20, the heater core 14, the second water pump 16 and the PTC heater 15 are all working, so that the engine heat and the PTC heater 15 heat the passenger compartment. The second water pump 16 and the PTC heater 15 may also not work, so that the engine heat alone heats the passenger compartment.

[0105] In this embodiment, the parking heating circuit, the motor heating circuit, the battery heating circuit, the third passenger compartment heating circuit and the EGR waste heat recovery circuit can operate simultaneously, so that the parking heater 9 heats the battery 12 and / or the motor; the engine heat, the turbocharger EGR waste heat, and the PTC heater 15 heat the passenger compartment.

[0106] In one possible implementation, Figure 1 As shown, the system further includes a fourth passenger compartment heating circuit and an EGR waste heat recovery circuit;

[0107] The fourth passenger compartment heating circuit includes a third water pump 22, an engine 21, a second water pump 16, a PTC heater 15, a heater core 14, a second three-way proportional valve 47, a first three-way proportional valve 48, a plate heat exchanger 26, a first three-way pipe 52 and a second three-way pipe 53;

[0108] In the fourth passenger compartment heating circuit, the first end of the third water pump 22 is communicated with the second end of the second three-way proportional valve 47 through the circulating fluid pipeline of the engine 21, the second water pump 16, the PTC heater 15, and the heater core 14 in sequence, the first end of the second three-way proportional valve 47 is communicated with the second end of the first three-way proportional valve 48, the first end of the first three-way proportional valve 48 is communicated with the first end of the high-temperature side of the plate heat exchanger 26, the second end of the high-temperature side of the plate heat exchanger 26 is communicated with the first end of the first three-way pipe 52, the third end of the first three-way pipe 52 is communicated with the first end of the second three-way pipe 53, and the third end of the second three-way pipe 53 is communicated with the second end of the third water pump 22;

[0109] The EGR (Exhaust Gas Return) waste heat recovery circuit includes a third water pump 22, an exhaust gas recirculation system EGR24 and a turbocharger 23;

[0110] In the EGR waste heat recovery loop, after the first end of the third water pump 22 is connected to the engine 21, it is connected to the second end of the third water pump 22 through the exhaust gas recirculation system 24 and the turbocharger 23 respectively.

[0111] In the present embodiment, the fourth passenger compartment heating circuit further includes a seventh three-way pipe 57 , an eighth three-way pipe 56 , a fourth three-way solenoid valve 55 , a sixth three-way pipe 60 and a third three-way solenoid valve 54 .

[0112] In the fourth passenger compartment heating circuit, the first end of the third water pump 22 is communicated with the circulating fluid pipeline of the engine 21, the circulating fluid pipeline of the engine 21 is communicated with the thermostat 20, the thermostat 20 is communicated with the port 2 of the fourth three-way solenoid valve 55 through the seventh three-way pipe 57 and the eighth three-way pipe 56, the port 3 of the fourth three-way solenoid valve 55 is communicated with the second water pump 16, the second water pump 16 is communicated with the PTC heater 15, and the PTC heater 15 is connected to the heater core 14 through the sixth three-way pipe 60. The heater core 14 is connected to port 2 of the second three-way proportional valve 47, port 1 of the second three-way proportional valve 47 is connected to port 2 of the first three-way proportional valve 48, port 1 of the first three-way proportional valve 48 is connected to one end of the high-temperature side of the plate heat exchanger 26, and the other end of the high-temperature side of the plate heat exchanger 26 is connected to port 1 of the third three-way solenoid valve 54 through the first three-way pipe 52 and the second three-way pipe 53, and port 3 of the third three-way solenoid valve 54 is connected to the second end of the third water pump 22.

[0113] In this embodiment, when the fourth passenger compartment heating circuit is working, ports 2 and 3 of the fourth three-way solenoid valve 55 are connected, and port 1 is closed; ports 1 and 2 of the second three-way proportional valve 47 are opened, and port 3 is closed; ports 1 and 2 of the first three-way proportional valve 48 are connected, and port 3 is closed; ports 1 and 3 of the third three-way solenoid valve 54 are connected, and port 2 is closed.

[0114] When the fourth passenger compartment heating circuit is working, the third water pump 22, the engine 21, the thermostat 20, the second water pump 16, the PTC heater 15, the heater core 14 and the plate heat exchanger 26 are all working. When the battery heating circuit, the motor heating circuit, the parking heating circuit, the fourth passenger compartment heating circuit and the EGR waste heat recovery circuit are working at the same time, the parking heater 9, the engine heat, the turbocharger EGR waste heat and the PTC are used to heat the battery 12, the motor, the engine 21 and the passenger compartment at a uniform temperature.

[0115] In a possible implementation, the battery heating circuit, the motor heating circuit, the fourth passenger compartment heating circuit and the EGR waste heat recovery circuit are in operation, and the parking heater 9 circuit is inoperable.

[0116] In this embodiment, the thermal management system can control the battery heating circuit, the motor heating circuit, the fourth passenger compartment heating circuit and the EGR waste heat recovery circuit to operate simultaneously so that the engine heat and the turbocharger EGR waste heat heat the motor and / or the battery 12.

[0117] In one possible implementation, Figure 1 As shown, the system further comprises a first heat pump heat absorption circuit;

[0118] The first heat pump heat absorption circuit includes an electric compressor 19, a water-cooled condenser 18, an outdoor heat exchanger 2 and a gas-liquid separator 17;

[0119] In the first heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the electric compressor 19 through the water-cooled condenser 18 , the outdoor heat exchanger 2 , and the gas-liquid separator 17 in sequence.

[0120] In this embodiment, the first heat pump heat absorption circuit further includes a ninth three-way pipe 39, a first electronic expansion valve 38, a thirteenth three-way pipe 49, a stop valve 35 and an eleventh three-way pipe 44. In the first heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to one end of the water-cooled condenser 18, and the other end of the water-cooled condenser 18 is connected to the outdoor heat exchanger 2 through the ninth three-way pipe 39 and the first electronic expansion valve 38, and the outdoor heat exchanger 2 is connected to the gas-liquid separator 17 through the thirteenth three-way pipe 49, the stop valve 35 and the eleventh three-way pipe 44, and the gas-liquid separator 17 is connected to the inlet of the electric compressor 19.

[0121] In one possible implementation, Figure 1 As shown, the system further includes a fifth passenger compartment heating circuit;

[0122] The fifth passenger compartment heating circuit includes a second water pump 16, a PTC heater 15, the water-cooled condenser 18 and a heater core 14;

[0123] In the fifth passenger compartment heating circuit, the first end of the second water pump 16 is sequentially connected to the PTC heater 15 , the heater core 14 , the water-cooled condenser 18 , and the second end of the second water pump 16 .

[0124] In this embodiment, the fifth passenger compartment heating circuit also includes a sixth three-way pipe 60 , a second three-way proportional valve 47 , a second three-way pipe 53 , a third three-way solenoid valve 54 , a seventh three-way pipe 57 , an eighth three-way pipe 56 and a fourth three-way solenoid valve 55 .

[0125] Specifically, in the fifth passenger compartment heating circuit, the first end of the second water pump 16 is connected to the PTC heater 15, the PTC heater 15 is connected to the heater core 14 through the sixth three-way pipe 60, the heater core 14 is connected to the second three-way pipe 53 through ports 2 and 3 of the second three-way proportional valve 47, the second three-way pipe 53 is connected to port 1 of the third three-way solenoid valve 54, port 2 of the third three-way solenoid valve 54 is connected to the water-cooled condenser 18 through the seventh three-way pipe 57 and the eighth three-way pipe 56, the water-cooled condenser 18 is connected to port 1 of the fourth three-way solenoid valve 55, and port 3 of the fourth three-way solenoid valve 55 is connected to the second end of the second water pump 16.

[0126] In this embodiment, when the fifth passenger compartment heating circuit is working, ports 2 and 3 of the second three-way proportional valve 47 are connected, and port 1 is closed; ports 1 and 2 of the third three-way solenoid valve 54 are connected, and port 3 is closed; ports 1 and 3 of the fourth three-way solenoid valve 55 are connected, and port 2 is closed.

[0127] In this embodiment, the first heat pump heat absorption circuit and the fifth passenger compartment heating circuit can be controlled to operate simultaneously, so that the heat pump absorbs the ambient temperature to heat the passenger compartment.

[0128] In one possible implementation, Figure 1 As shown, the system further includes a second heat pump heat absorption circuit;

[0129] The second heat pump heat absorption circuit includes an electric compressor 19, a water-cooled condenser 18, a refrigerant heat exchanger 10 and a gas-liquid separator 17;

[0130] In the second heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the electric compressor 19 through the water-cooled condenser 18, the refrigerant heat exchanger 10, and the gas-liquid separator 17 in sequence.

[0131] In this embodiment, the second heat pump heat absorption circuit further includes a stop valve 41, a twelfth three-way pipe 40, a second electronic expansion valve 34, a fifth three-way solenoid valve 36, a thirteenth three-way pipe 42 and an eleventh three-way pipe 44. In the second heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to one end of the water-cooled condenser 18, the other end of the water-cooled condenser 18 is connected to the refrigerant side of the refrigerant heat exchanger 10 through the stop valve 41, the twelfth three-way pipe 40 and the second electronic expansion valve 34, the refrigerant side of the refrigerant heat exchanger 10 is connected to the port 1 of the fifth three-way solenoid valve 36, the port 3 of the fifth three-way solenoid valve 36 is connected to one end of the gas-liquid separator 17 through the thirteenth three-way pipe 42 and the eleventh three-way pipe 44, and the other end of the gas-liquid separator 17 is connected to the inlet of the electric compressor 19.

[0132] In this embodiment, the second heat pump heat absorption circuit, the motor heating circuit and the fifth passenger compartment heating circuit are controlled to operate simultaneously, so that the heat pump absorbs the waste heat of the motor to heat the passenger compartment.

[0133] In one possible implementation, Figure 1 As shown, the system further includes a third heat pump heat absorption circuit;

[0134] The third heat pump heat absorption circuit includes an electric compressor 19, a water-cooled condenser 18, a refrigerant heat exchanger 10, an outdoor heat exchanger 2, and a gas-liquid separator 17;

[0135] In the third heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the electric compressor 19 through the water-cooled condenser 18, the refrigerant side of the refrigerant heat exchanger 10, the outdoor heat exchanger 2, and the gas-liquid separator 17 in sequence.

[0136] In this embodiment, the third heat pump heat absorption circuit also includes a stop valve 41, a twelfth three-way pipe 40, a second electronic expansion valve 34, a third three-way solenoid valve 54, a ninth three-way pipe 39, a first electronic expansion valve 38, a thirteenth three-way pipe 49, a stop valve 35 and an eleventh three-way pipe 44.

[0137] In the third heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the water-cooled condenser 18, and the outlet of the water-cooled condenser 18 is connected to the refrigerant side of the refrigerant heat exchanger 10 through the stop valve 41, the twelfth three-way pipe 40, and the second electronic expansion valve 34. The refrigerant side of the refrigerant heat exchanger 10 is connected to the outdoor heat exchanger 2 through the fifth three-way solenoid valve 36, the ninth three-way pipe 39, and the first electronic expansion valve 38. The outdoor heat exchanger 2 is connected to the gas-liquid separator 17 through the thirteenth pipe 49, the stop valve 35 and the eleventh three-way pipe 44, and the gas-liquid separator 17 is connected to the inlet of the electric compressor 19.

[0138] In this embodiment, the third heat pump heat absorption circuit is controlled to operate simultaneously with (the battery heating circuit and / or the motor heating circuit) so that the heat pump heats the battery 12 and / or the motor.

[0139] In this embodiment, the third heat pump heat absorption circuit, the battery heating circuit, the motor heating circuit, the parking heating circuit, the fifth passenger compartment heating circuit and the EGR waste heat recovery circuit are controlled to operate simultaneously, so that the heat pump, the parking heater 9, the engine heat, the turbocharger EGR waste heat and the PTC heat the battery 12, the motor, the engine 21 and the passenger compartment simultaneously.

[0140] It can be seen from the above embodiments that this embodiment designs the thermal management integrated architecture through the comprehensive design of the thermal management integrated architecture, combined with the use scenarios of various components and systems; when the vehicle is in a low temperature environment for a long time in cold or even extremely cold areas, the parking heater 9 can be used to heat the high-voltage battery pack to ensure the operating temperature of the battery pack and the low-temperature cold start of the engine 21, to ensure that the battery pack is at the optimal operating temperature when discharging and the engine 21 is started, thereby reducing energy consumption; when the vehicle is in a low temperature environment for a long time in cold or even extremely cold areas, a heat pump and water heating PTC can be used, the engine heat, the EGR waste heat energy, and the parking heater 9 can simultaneously provide heat to the battery 12, the motor, and the engine 21. The engine 21 and the passenger compartment are heated, so that the vehicle can be heated with maximum efficiency to meet the needs of rapid vehicle use and heating in extremely cold areas; when starting the vehicle or driving in winter, when the vehicle battery 12 and the passenger compartment need to be heated at the same time, the parking heater 9 can be used alone to heat the battery 12, and the engine heat and EGR waste heat, PTC and other energies can be used to heat the passenger compartment. The heat pump, parking heater 9, engine heat, EGR waste heat, and PTC can also be used to heat the passenger compartment at the same time, and waste heat is used for heating to save energy, so that it can save energy while maintaining the optimal operating temperature during driving, greatly reducing the energy consumption of air conditioning heating and battery 12 heating systems, thereby improving the endurance of the entire vehicle.

[0141] In one possible implementation, Figure 2 FIG. 4 shows a schematic diagram of the series structure of the thermal management architecture of the vehicle provided in this embodiment; Figure 2 As shown, the parking heating circuit further includes a second three-way pipe 53 and a second three-way proportional valve 47;

[0142] In the parking heating circuit, the first end of the first water pump 8 is connected to the first end of the parking heater 9, the second end of the parking heater 9 is connected to the first end of the second three-way pipe 53, the second end of the second three-way pipe 53 is connected to the third end of the second three-way proportional valve 47, the first end of the second three-way proportional valve 47 is connected to the first end of the high temperature side of the plate heat exchanger 26, and the second end of the high temperature side of the plate heat exchanger 26 is connected to the second end of the first water pump 8.

[0143] In this embodiment, the battery heating circuits in the series and parallel thermal management systems are the same, and the motor heating circuits are also the same. By controlling the series-connected parking heating circuit and the battery heating circuit to work simultaneously, the parking heater 9 can heat the battery 12. By controlling the series-connected parking heating circuit and the motor heating circuit to work simultaneously, the parking heater 9 can heat the motor.

[0144] In one possible embodiment, the parking heating circuit is used to heat the passenger compartment;

[0145] The parking heating circuit also includes a second water pump 16, a PTC heater 15 and a heater core 14;

[0146] In the parking heating circuit, the second end of the first water pump 8 is connected to the first end of the first water pump 8 through the parking heater 9, the second three-way pipe 53, the second water pump 16, the PTC heater 15, the heater core 14, the second three-way proportional valve 47 and the high temperature side of the plate heat exchanger 26 in sequence.

[0147] Specifically, the parking heating circuit includes a second three-way pipe 53 and a third three-way solenoid valve 54, a seventh three-way pipe 57, an eighth three-way pipe 56, a fourth three-way solenoid valve 55, a sixth three-way pipe 60 and a second three-way proportional valve 47;

[0148] When the parking heating circuit heats the passenger compartment, the second end of the first water pump 8 is connected to the second end of the parking heater 9, the first end of the parking heater 9 is connected to the second port 2 of the fourth three-way solenoid valve 55 through the second three-way pipe 53, the first port and the second port 2 of the third three-way solenoid valve 54, the seventh three-way pipe 57, and the eighth three-way pipe 56 in sequence, the third port 3 of the fourth three-way solenoid valve 55 is connected to the second end of the second water pump 16, the first end of the second water pump 16 is connected to the first end of the PTC heater 15, the second end of the PTC heater 15 is connected to the heater core 14 through the sixth three-way pipe 60, the heater core 14 is connected to the port 2 of the second three-way proportional valve 47, the first port 1 of the second three-way proportional valve 47 is connected to one end of the high temperature side of the plate heat exchanger 26, and the other end of the high temperature side of the plate heat exchanger 26 is connected to the first end of the first water pump 8.

[0149] Among them, port 3 of the fifth three-way solenoid valve 36 is also connected to the second three-way pipe 53; when the parking heating circuit is working, port 2 and port 1 of the first three-way proportional valve 48 are connected, and port 3 is closed; port 1 and port 2 of the third three-way solenoid valve 54 are connected, and port 3 is closed; port 2 and port 3 of the fourth three-way solenoid valve 55 are connected, and port 1 is closed. The above circuits are connected in series through the parking heater 9, the first water pump 8, and the plate heat exchanger 26, and the parking heater 9 can heat the passenger compartment by starting one circuit.

[0150] In one possible implementation, Figure 2 As shown, the system further includes a second heating circuit;

[0151] The second heating circuit includes the first water pump 8, the parking heater 9, the plate heat exchanger 26, the second three-way pipe 53, the second three-way proportional valve 47, the third water pump 22, the engine 21, the second water pump 16, the PTC heater 15 and the heater core 14;

[0152] In the second heating circuit, the second end of the first water pump 8 is connected to the first end of the first water pump 8 through the parking heater 9, the second three-way pipe 53, the third water pump 22, the circulating fluid pipeline of the engine 21, the second water pump 16, the PTC heater 15, the heater core 14, the second three-way proportional valve 47 and the high temperature side of the plate heat exchanger 26 in sequence.

[0153] In this embodiment, the second heating circuit further includes a thermostat 20, a third three-way solenoid valve 54, a seventh three-way pipe 57, an eighth three-way pipe 56, a fourth three-way solenoid valve 55 and a sixth three-way pipe 60;

[0154] In the second heating circuit, the second end of the first water pump 8 is communicated with the second end of the parking heater 9, the first end of the parking heater 9 is communicated with the port 1 of the third three-way solenoid valve 54 through the second three-way pipe 53, the port 3 of the three-way solenoid valve is communicated with the second end of the third water pump 22, the first end of the third water pump 22 is communicated with the thermostat 20 through the circulating fluid pipeline of the engine 21, the thermostat 20 is communicated with the port 2 of the fourth three-way solenoid valve 55 through the seventh three-way pipe 57 and the eighth three-way pipe 56, the port 3 of the fourth three-way solenoid valve 55 is communicated with the second end of the second water pump 16, the first end of the second water pump 16 is communicated with the first end of the PTC heater 15, the second end of the PTC heater 15 is communicated with the heater core 14 through the sixth three-way pipe 60, the heater core 14 is communicated with the port 2 of the second three-way proportional valve 47, the port 1 of the second three-way proportional valve 47 is communicated with one end of the high temperature side of the plate heat exchanger 26, and the other end of the high temperature side of the plate heat exchanger 26 is communicated with the first end of the first water pump 8.

[0155] In one possible implementation, Figure 2 As shown, in the second heating circuit, the first water pump 8, the parking heater 9, the second water pump 16, the PTC heater 15, the heater core 14 and the plate heat exchanger 26 are working, and the third water pump 22 is not working.

[0156] In this embodiment, when the second heating circuit is working, the first water pump 8, the parking heater 9, the heater core 14, and the plate heat exchanger 26 can work at the same time, and the third water pump 22, the engine 21, the thermostat 20, the second water pump 16, and the PTC heater 15 can not work, so that the parking heater 9 heats the engine 21 and the passenger compartment. In addition, the first water pump 8, the parking heater 9, the second water pump 16, the PTC heater 15, the plate heat exchanger 26, and the heater core 14 work at the same time, and the third water pump 22, the engine 21, and the thermostat 20 do not work, so that the parking heater 9 and the PTC heater 15 jointly heat the engine 21 and the passenger compartment.

[0157] In this embodiment, the second heating circuit can also work simultaneously with the battery heating circuit and the motor heating circuit, so that the parking heater 9 or the parking heater 9 and the PTC evenly heat the battery 12, the motor, the engine 21 and the passenger compartment.

[0158] In one possible implementation, Figure 2 As shown, the system further comprises a third heating circuit:

[0159] The third heating circuit includes the first water pump 8, the parking heater 9, the second three-way pipe 53, the second three-way proportional valve 47, the plate heat exchanger 26, the third water pump 22, the engine 21, the thermostat 20, the second water pump 16, the PTC heater 15 and the heater core 14;

[0160] In the third heating circuit, the second end of the first water pump 8 is connected to the first end of the first water pump 8 through the parking heater 9, the second three-way pipe 53, the third water pump 22, the circulating fluid pipeline of the engine 21, the thermostat 20, the second water pump 16, the PTC heater 15, the heater core 14, the second three-way proportional valve 47 and the high temperature side of the plate heat exchanger 26 in sequence;

[0161] In the third heating circuit, the third water pump 22, the engine 21, the thermostat 20, the second water pump 16, the PTC heater 15, the heater core 14, the plate heat exchanger 26, the first water pump 8 and the parking heater 9 are all working to achieve engine heat, turbocharger EGR waste heat, and PTC uniform temperature heating of the engine 21 and the passenger compartment.

[0162] In one possible implementation, Figure 2 As shown, the system also includes an EGR waste heat recovery circuit;

[0163] The EGR waste heat recovery loop includes a third water pump 22, an engine 21, an exhaust gas recirculation system 24 and a turbocharger 23;

[0164] In the EGR waste heat recovery loop, after the first end of the third water pump 22 is connected to the engine 21, it is connected to the second end of the third water pump 22 through the exhaust gas recirculation system 24 and the turbocharger 23 respectively.

[0165] In this embodiment, the third water pump 22, the engine 21, the thermostat 20, the parking heater 9, the first water pump 8, the second water pump 16, the PTC heater 15, the heater core 14 and the plate heat exchanger 26 in the third heating circuit are all controlled to work, and the EGR waste heat recovery circuit, the battery heating circuit and the motor heating circuit are controlled to work at the same time, so that the parking heater 9, the engine heat, the turbocharger EGR waste heat, and the PTC heat the battery 12, the motor, the engine 21, and the passenger compartment. The third water pump 22, the engine 21, the thermostat 20, the parking heater 9, the first water pump 8 and the plate heat exchanger 26 in the third heating circuit are all controlled to work, and the EGR waste heat recovery circuit, the battery heating circuit and the motor heating circuit are controlled to work at the same time. So that the engine heat and the turbocharger EGR waste heat heat the motor / battery 12 or the motor and the battery 12.

[0166] In this embodiment, one end of the circulating fluid pipeline of the engine is connected to the heater core through the three-way pipe 58 and the three-way pipe 60, and the end of the circulating fluid pipeline of the engine is also connected to one end of the high-temperature radiator 3 through the thermostat, and the other end of the high-temperature radiator 3 is connected to the other end of the circulating fluid pipeline of the engine through the third water pump. Among them, the three-way pipe 58 is also connected to one end of the overflow tank 25 through the three-way pipe 59, and the other end of the overflow tank 25 is connected to the third water pump. The three-way pipe 59 is also connected to the high-temperature radiator 3 through the one-way valve 45.

[0167] In one possible implementation, Figure 2 As shown, the system further comprises a first heat pump heat absorption circuit;

[0168] The first heat pump heat absorption circuit includes an electric compressor 19, a water-cooled condenser 18, an outdoor heat exchanger 2 and a gas-liquid separator 17;

[0169] In the first heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the electric compressor 19 through the water-cooled condenser 18 , the outdoor heat exchanger 2 , and the gas-liquid separator 17 in sequence.

[0170] In this embodiment, the first heat pump heat absorption circuit further includes a ninth three-way pipe 39, a first electronic expansion valve 38, a thirteenth three-way pipe 49, a stop valve 35 and an eleventh three-way pipe 44. In the first heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to one end of the water-cooled condenser 18, and the other end of the water-cooled condenser 18 is connected to the outdoor heat exchanger 2 through the ninth three-way pipe 39 and the first electronic expansion valve 38, and the outdoor heat exchanger 2 is connected to the gas-liquid separator 17 through the thirteenth three-way pipe 49, the stop valve 35 and the eleventh three-way pipe 44, and the gas-liquid separator 17 is connected to the inlet of the electric compressor 19.

[0171] In one possible implementation, Figure 2As shown, the system further includes a fifth passenger compartment heating circuit;

[0172] The fifth passenger compartment heating circuit includes a second water pump 16, a PTC heater 15, the water-cooled condenser 18 and a heater core 14;

[0173] In the fifth passenger compartment heating circuit, the first end of the second water pump 16 is sequentially connected to the PTC heater 15 , the heater core 14 , the water-cooled condenser 18 , and the second end of the second water pump 16 .

[0174] In this embodiment, the fifth passenger compartment heating circuit also includes a sixth three-way pipe 60 , a second three-way proportional valve 47 , a second three-way pipe 53 , a third three-way solenoid valve 54 , a seventh three-way pipe 57 , an eighth three-way pipe 56 and a fourth three-way solenoid valve 55 .

[0175] Specifically, in the fifth passenger compartment heating circuit, the first end of the second water pump 16 is connected to the PTC heater 15, the PTC heater 15 is connected to the heater core 14 through the sixth three-way pipe 60, the heater core 14 is connected to the second three-way pipe 53 through ports 2 and 3 of the second three-way proportional valve 47, the second three-way pipe 53 is connected to port 1 of the third three-way solenoid valve 54, port 2 of the third three-way solenoid valve 54 is connected to the water-cooled condenser 18 through the seventh three-way pipe 57 and the eighth three-way pipe 56, the water-cooled condenser 18 is connected to port 1 of the fourth three-way solenoid valve 55, and port 3 of the fourth three-way solenoid valve 55 is connected to the second end of the second water pump 16.

[0176] In this embodiment, when the fifth passenger compartment heating circuit is working, ports 2 and 3 of the second three-way proportional valve 47 are connected, and port 1 is closed; ports 1 and 2 of the third three-way solenoid valve 54 are connected, and port 3 is closed; ports 1 and 3 of the fourth three-way solenoid valve 55 are connected, and port 2 is closed.

[0177] In this embodiment, the first heat pump heat absorption circuit and the fifth passenger compartment heating circuit can be controlled to operate simultaneously, so that the heat pump absorbs the ambient temperature to heat the passenger compartment.

[0178] In one possible implementation, Figure 2 As shown, the system further includes a second heat pump heat absorption circuit;

[0179] The second heat pump heat absorption circuit includes an electric compressor 19, a water-cooled condenser 18, a refrigerant heat exchanger 10 and a gas-liquid separator 17;

[0180] In the second heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the electric compressor 19 through the water-cooled condenser 18, the refrigerant heat exchanger 10, and the gas-liquid separator 17 in sequence.

[0181] In this embodiment, the second heat pump heat absorption circuit further includes a stop valve 41, a twelfth three-way pipe 40, a second electronic expansion valve 34, a fifth three-way solenoid valve 36, a thirteenth three-way pipe 42 and an eleventh three-way pipe 44. In the second heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to one end of the water-cooled condenser 18, the other end of the water-cooled condenser 18 is connected to the refrigerant side of the refrigerant heat exchanger 10 through the stop valve 41, the twelfth three-way pipe 40 and the second electronic expansion valve 34, the refrigerant side of the refrigerant heat exchanger 10 is connected to the port 1 of the fifth three-way solenoid valve 36, the port 3 of the fifth three-way solenoid valve 36 is connected to one end of the gas-liquid separator 17 through the thirteenth three-way pipe 42 and the eleventh three-way pipe 44, and the other end of the gas-liquid separator 17 is connected to the inlet of the electric compressor 19.

[0182] In this embodiment, the second heat pump heat absorption circuit, the motor heating circuit and the fifth passenger compartment heating circuit are controlled to operate simultaneously, so that the heat pump absorbs the waste heat of the motor to heat the passenger compartment.

[0183] In one possible implementation, Figure 2 As shown, the system further includes a third heat pump heat absorption circuit;

[0184] The third heat pump heat absorption circuit includes an electric compressor 19, a water-cooled condenser 18, a refrigerant heat exchanger 10, an outdoor heat exchanger 2, and a gas-liquid separator 17;

[0185] In the third heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the electric compressor 19 through the water-cooled condenser 18, the refrigerant side of the refrigerant heat exchanger 10, the outdoor heat exchanger 2, and the gas-liquid separator 17 in sequence.

[0186] In this embodiment, the third heat pump heat absorption circuit also includes a stop valve 41, a twelfth three-way pipe 40, a second electronic expansion valve 34, a third three-way solenoid valve 54, a ninth three-way pipe 39, a first electronic expansion valve 38, a thirteenth three-way pipe 49, a stop valve 35 and an eleventh three-way pipe 44.

[0187] In the third heat pump heat absorption circuit, the outlet of the electric compressor 19 is connected to the inlet of the water-cooled condenser 18, and the outlet of the water-cooled condenser 18 is connected to the refrigerant side of the refrigerant heat exchanger 10 through the stop valve 41, the twelfth three-way pipe 40, and the second electronic expansion valve 34. The refrigerant side of the refrigerant heat exchanger 10 is connected to the outdoor heat exchanger 2 through the fifth three-way solenoid valve 36, the ninth three-way pipe 39, and the first electronic expansion valve 38. The outdoor heat exchanger 2 is connected to the gas-liquid separator 17 through the thirteenth pipe 49, the stop valve 35 and the eleventh three-way pipe 44, and the gas-liquid separator 17 is connected to the inlet of the electric compressor 19.

[0188] In this embodiment, the third heat pump heat absorption circuit, the motor heating circuit, the battery heating circuit, the third heating circuit and the EGR waste heat recovery are controlled to operate simultaneously, so that the heat pump, the parking heater 9, the engine heat, the turbocharger EGR waste heat and the PTC heater 15 heat the battery 12, the motor, the engine 21 and the passenger compartment simultaneously.

[0189] In this embodiment, the third heat pump heat absorption circuit and the battery heating circuit are controlled to operate simultaneously, so that the heat pump heats the battery 12 .

[0190] In this embodiment, the third heat pump heat absorption circuit and the motor heating circuit are controlled to operate simultaneously, so that the heat pump heats the motor.

[0191] It can be seen from the above embodiments that when the vehicle is in a low temperature environment for a long time in cold or even extremely cold areas, the parking heater 9 can be used to heat the high-voltage battery pack to ensure the operating temperature of the battery pack and the low-temperature cold start of the engine 21. No additional electric energy consumption such as PTC is required for heating, ensuring that the engine 21 is at the optimal operating temperature when starting, thereby reducing energy consumption.

[0192] In addition, when the vehicle is in a low temperature environment or driving for a long time in cold or even extremely cold areas, a heat pump, parking heater 9, water heating PTC, engine heat, EGR waste heat and turbocharger waste heat can be used to heat the battery 12, motor, engine 21 and passenger compartment at the same time, so that the vehicle can be heated with maximum efficiency, meeting the needs of rapid vehicle use and heating in extremely cold areas, using waste heat to heat and save energy, so that it can save energy while maintaining the optimal operating temperature during driving, greatly reducing the energy consumption of air conditioning heating and battery 12 heating systems, thereby improving the endurance of the entire vehicle.

[0193] In a second aspect, the present application provides a vehicle, comprising the vehicle thermal management system described in any one of the first aspects above.

[0194] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A thermal management system for a vehicle, characterized in that: Including parking heating circuit; The parking heating circuit includes a first water pump, a plate heat exchanger and a parking heater; wherein the parking heater is connected to the fuel system of the vehicle and generates heat by burning fuel; In the parking heating circuit, the first end of the first water pump is connected to the second end of the first water pump through the parking heater and the high temperature side of the plate heat exchanger; The parking heating circuit is used to heat the battery, the electric motor, the engine and / or the passenger compartment of the vehicle.

2. The thermal management system of a vehicle according to claim 1, characterized in that: The parking heating circuit also includes a second three-way pipe and a second three-way proportional valve; In the parking heating circuit, a first end of the first water pump is communicated with a first end of the parking heater, a second end of the parking heater is communicated with a first end of the second three-way pipe, a second end of the second three-way pipe is communicated with a third end of the second three-way proportional valve, a first end of the second three-way proportional valve is connected to a first end of a high-temperature side of the plate heat exchanger, and a second end of the high-temperature side of the plate heat exchanger is communicated with a second end of the first water pump.

3. The thermal management system for a vehicle according to claim 1, characterized in that: The parking heating circuit also includes a second three-way pipe, a first three-way pipe, a first three-way proportional valve and a second three-way proportional valve; In the parking heating circuit, the first end of the first water pump is communicated with the third end of the first three-way proportional valve, the first end of the first three-way proportional valve is communicated with the first end of the high-temperature side of the plate heat exchanger, the second end of the high-temperature side of the plate heat exchanger is communicated with the first end of the first three-way pipe, the second end of the first three-way pipe is communicated with the first end of the parking heater, the second end of the parking heater is communicated with the second end of the first water pump, the second end of the first three-way proportional valve is communicated with the first end of the second three-way proportional valve, the third end of the second three-way proportional valve is communicated with the second end of the second three-way pipe, and the first end of the second three-way pipe is communicated with the third end of the first three-way pipe.

4. The thermal management system for a vehicle according to claim 2 or 3, characterized in that: The system also includes a battery heating circuit; The battery heating circuit includes a battery, a fourth water pump, the plate heat exchanger and a refrigerant heat exchanger; In the battery heating circuit, the outlet of the fourth water pump is sequentially connected to the circulating fluid pipeline of the battery, the low temperature side of the plate heat exchanger, the water side of the refrigerant heat exchanger, and the inlet of the fourth water pump.

5. The thermal management system for a vehicle according to claim 2 or 3, characterized in that: The system also includes a motor heating circuit; The motor heating circuit includes a motor system, a fifth water pump, the plate heat exchanger and a refrigerant heat exchanger; In the motor heating circuit, the outlet of the fifth water pump is connected to the inlet of the fifth water pump through the circulating liquid pipeline of the motor system, the low temperature side of the plate heat exchanger and the water side of the refrigerant heat exchanger in sequence.

6. The thermal management system for a vehicle according to claim 3, characterized in that: The system also includes a first passenger compartment heating circuit; The first passenger compartment heating circuit includes a second water pump, a PTC heater, a heater core, the second three-way proportional valve, the first three-way proportional valve, the first water pump, the parking heater, the first three-way pipe and the second three-way pipe; In the first passenger compartment heating circuit, the first end of the second water pump is communicated with the first end of the PTC heater, the second end of the PTC heater is communicated with the first end of the heater core, the second end of the heater core is communicated with the second end of the second three-way proportional valve, the first end of the second three-way proportional valve is communicated with the second end of the first three-way proportional valve, the third end of the first three-way proportional valve is communicated with the first end of the first water pump, the second end of the first water pump is communicated with the second end of the parking heater, the first end of the parking heater is communicated with the second end of the first three-way pipe, the third end of the first three-way pipe is communicated with the first end of the second three-way pipe, and the third end of the second three-way pipe is communicated with the second end of the second water pump.

7. The thermal management system for a vehicle according to claim 3, characterized in that: The system also includes a first heating circuit; The first heating circuit includes a second water pump, a PTC heater, a heater core, the second three-way proportional valve, the first three-way proportional valve, the first water pump, the parking heater, the first three-way pipe, the second three-way pipe, a third water pump and an engine; In the first heating circuit, the first end of the second water pump is communicated with the first end of the PTC heater, the second end of the PTC heater is communicated with the first end of the heater core, the second end of the heater core is communicated with the second end of the second three-way proportional valve, the first end of the second three-way proportional valve is communicated with the second end of the first three-way proportional valve, the third end of the first three-way proportional valve is communicated with the first end of the first water pump, the second end of the first water pump is communicated with the second end of the parking heater, the first end of the parking heater is communicated with the second end of the first three-way pipe, the third end of the first three-way pipe is communicated with the first end of the second three-way pipe, the third end of the second three-way pipe is communicated with the first end of the third water pump, the second end of the third water pump is communicated with the first end of the circulating fluid pipeline of the engine, and the second end of the circulating fluid pipeline of the engine is communicated with the second end of the second water pump.

8. The thermal management system for a vehicle according to claim 3, characterized in that: The system also includes a second passenger compartment heating circuit; The second passenger compartment heating circuit includes a second water pump, a PTC heater, a heater core, the second three-way proportional valve, the first three-way proportional valve, a plate heat exchanger, a first three-way pipe and a second three-way pipe; In the second passenger compartment heating circuit, the first end of the second water pump is connected to the second end of the second three-way proportional valve through the PTC heater and the heater core in sequence, the first end of the second three-way proportional valve is connected to the second end of the first three-way proportional valve, the first end of the first three-way proportional valve is connected to the first end of the high-temperature side of the plate heat exchanger, the second end of the high-temperature side of the plate heat exchanger is connected to the first end of the first three-way pipe, the third end of the first three-way pipe is connected to the first end of the second three-way pipe, and the third end of the second three-way pipe is connected to the second end of the second water pump.

9. The thermal management system for a vehicle according to claim 2 or 3, characterized in that: The system also includes a third passenger compartment heating circuit and an EGR waste heat recovery circuit; The third passenger compartment heating circuit includes a third water pump, an engine, a second water pump, a PTC heater, a heater core, a second three-way proportional valve and a second three-way pipe; In the third passenger compartment heating circuit, the first end of the third water pump is connected to the second end of the second three-way proportional valve through the circulating fluid pipeline of the engine, the second water pump, the PTC heater, and the heater core in sequence, the third end of the second three-way proportional valve is connected to the second end of the second three-way pipe, and the third end of the second three-way pipe is connected to the second end of the third water pump; The EGR waste heat recovery loop includes a third water pump, an exhaust gas recirculation system and a turbocharger; In the EGR waste heat recovery circuit, after the first end of the third water pump is connected to the engine, it is connected to the second end of the third water pump through the exhaust gas recirculation system and the turbocharger respectively.

10. The thermal management system for a vehicle according to claim 3, characterized in that: The system also includes a fourth passenger compartment heating circuit and an EGR waste heat recovery circuit; The fourth passenger compartment heating circuit includes a third water pump, an engine, a second water pump, a PTC heater, a heater core, a second three-way proportional valve, a first three-way proportional valve, a plate heat exchanger, a first three-way pipe and a second three-way pipe; In the fourth passenger compartment heating circuit, the first end of the third water pump is communicated with the second end of the second three-way proportional valve through the circulating fluid pipeline of the engine, the second water pump, the PTC heater, and the heater core in sequence, the first end of the second three-way proportional valve is communicated with the second end of the first three-way proportional valve, the first end of the first three-way proportional valve is communicated with the first end of the high-temperature side of the plate heat exchanger, the second end of the high-temperature side of the plate heat exchanger is communicated with the first end of the first three-way pipe, the third end of the first three-way pipe is communicated with the first end of the second three-way pipe, and the third end of the second three-way pipe is communicated with the second end of the third water pump; The EGR waste heat recovery loop includes a third water pump, an exhaust gas recirculation system and a turbocharger; In the EGR waste heat recovery circuit, after the first end of the third water pump is connected to the engine, it is connected to the second end of the third water pump through the exhaust gas recirculation system and the turbocharger respectively.

11. The thermal management system for a vehicle according to claim 2, characterized in that: The parking heating circuit is used to heat the passenger compartment; The parking heating circuit also includes a second water pump, a PTC heater and a heater core; In the parking heating circuit, the second end of the first water pump is connected to the first end of the first water pump in sequence through the parking heater, the second three-way pipe, the second water pump, the PTC heater, the heater core, the second three-way proportional valve and the high-temperature side of the plate heat exchanger.

12. The thermal management system for a vehicle according to claim 2, characterized in that: The system also includes a second heating circuit; The second heating circuit includes the first water pump, the parking heater, the plate heat exchanger, the second three-way pipe, a second three-way proportional valve, a third water pump, an engine, a second water pump, a PTC heater and a heater core; In the second heating circuit, the second end of the first water pump is connected to the first end of the first water pump through the parking heater, the second three-way pipe, the third water pump, the circulating fluid pipeline of the engine, the second water pump, the PTC heater, the heater core, the second three-way proportional valve and the high-temperature side of the plate heat exchanger in sequence.

13. The thermal management system for a vehicle according to claim 12, characterized in that: The system also includes an EGR waste heat recovery loop; The EGR waste heat recovery loop includes a third water pump, an exhaust gas recirculation system and a turbocharger; In the EGR waste heat recovery circuit, after the first end of the third water pump is connected to the engine, it is connected to the second end of the third water pump through the exhaust gas recirculation system and the turbocharger respectively.

14. A vehicle, characterized in that: A thermal management system for a vehicle comprising any one of claims 1 to 13.

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