Thermal management system, control method, electronic device, medium, and vehicle

Abstract

The present application belongs to the technical field of heat management, and discloses a heat management system, a control method, an electronic device, a medium and a vehicle. The heat management system comprises a heat supply circuit, a battery circuit and a heat pump circuit. The battery circuit is coupled to the heat supply circuit, and the heat pump circuit is coupled to the battery circuit. An internal condenser is arranged in the heat pump circuit. Heat in the heat supply circuit is transmitted to the internal condenser through the battery circuit. The control method of the heat management system is used for controlling the heat management system. The electronic device can execute the control method. The medium stores a program that can execute the control method. The vehicle comprises the heat management system. In the present application, the heat pump circuit is coupled to the heat supply circuit through the battery circuit. The heat pump circuit exchanges heat with the battery circuit. Heat in the heat supply circuit can be indirectly transmitted to the internal condenser in the heat pump circuit through the battery circuit. Therefore, when heating, the heat in the heat supply circuit can be fully utilized, so that the warm air core can be cancelled, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of thermal management technology, and more particularly to a thermal management system, control method, electronic device, medium, and vehicle. Background Technology

[0002] Compared to direct heat pumps, indirect heat pumps have additional components in the air conditioning unit, such as the heater core, heater water pump, heater water pipes, and WPTC. In order to meet the air conditioning heating requirements in low-temperature environments, the outlet water temperature of the WPTC needs to be controlled at a higher level. This results in more heat dissipation in the water circuit components in low-temperature environments. Consequently, in order to provide the same amount of heat to the air conditioning unit, the refrigerant circuit needs to provide higher refrigerant pressure and temperature, resulting in higher power consumption of the compressor.

[0003] WPTC itself has a large surface area. When placed in a heating circuit with high water temperature, it dissipates a lot of heat into the environment. Even when the heat pump's heating capacity meets the requirements and the WPTC does not need to work, there is still a significant heat dissipation on the WPTC surface due to the hot water passing through it.

[0004] When the WPTC heats the battery, it heats the water-water heat exchanger through the warm air circuit, and then transfers the heat to the battery through the battery circuit. The heat transport path is relatively long, resulting in more heat loss. In order to ensure that the WPTC provides a certain heating power to the battery, the power of the WPTC is often selected to be too large, which leads to waste of costs.

[0005] For a compressor to deliver a large heating power (e.g., 3-5kW) at low temperatures, the inlet water side of the chiller needs to provide a large power supply. Since the WPTC is placed on the high-temperature side, the path for heating the chiller is too long, resulting in a longer waiting time for the compressor to deliver a large power.

[0006] PHEVs have two water pumps in their engine and heating circuits: an electronic water pump for the engine and a water pump for the heating system, which leads to significant cost waste.

[0007] If a PHEV uses a direct heat pump, an internal cooling condenser generally needs to be added to the air conditioning unit. To facilitate the use of waste heat from the engine during startup, the heater core (heater coil) cannot be eliminated. This results in a three-core air conditioning unit, which increases the pressure drop during heating, leading to reduced airflow. To maintain the original airflow of two cores, the blower's airflow needs to be increased, placing higher demands on the blower's capacity and increasing noise. Summary of the Invention

[0008] The purpose of this invention is to provide a thermal management system, control method, electronic equipment, medium, and vehicle that can fully utilize the heat in the heating circuit during heating.

[0009] To achieve this objective, the present invention adopts the following technical solution:

[0010] Thermal management system, including:

[0011] Heating circuit;

[0012] The battery circuit is coupled to the heating circuit.

[0013] The heat pump circuit is coupled to the battery circuit. An internal condenser is installed in the heat pump circuit, and the heat in the heating circuit is transferred to the internal condenser through the battery circuit.

[0014] Preferably, the heating circuit includes an engine circuit coupled to the battery circuit.

[0015] Preferably, the engine circuit is coupled to the battery circuit via a second heat exchanger.

[0016] Preferably, the engine circuit is coupled to the battery circuit via a sixth valve body.

[0017] Preferably, the sixth valve body is provided with a first interface, a second interface, a third interface, and a fourth interface. The first and fourth interfaces are connected to the battery circuit, the second interface is connected to the fluid inlet of the engine circuit, and the third interface is connected to the fluid outlet of the engine.

[0018] Preferably, the engine circuit is equipped with a two-way valve, which is connected in series with the engine in the engine circuit.

[0019] Preferably, the heating circuit includes an electric drive circuit coupled to the battery circuit.

[0020] Preferably, the electric drive circuit is coupled to the battery circuit via a fourth valve body.

[0021] Preferably, the fourth valve body is provided with a first fourth valve port, a second fourth valve port, a third fourth valve port, and a fourth fourth valve port. The electric drive circuit is provided with an electric drive assembly and an electric drive heat sink connected in series. The first fourth valve port is connected to the fluid inlet of the electric drive assembly, the second fourth valve port is connected to the battery circuit, the third fourth valve port is connected to the fluid outlet of the electric drive heat sink, and the fourth fourth valve port is connected to the battery circuit, the fluid outlet of the electric drive assembly, and the fluid inlet of the electric drive heat sink.

[0022] Preferably, the fourth valve body has a fourth valve operating mode one, a fourth valve operating mode two, and a fourth valve operating mode three;

[0023] In the fourth valve operating mode, the first port of the fourth valve is connected to the second port of the fourth valve, and the third port of the fourth valve and the fourth port of the fourth valve are closed.

[0024] In the second working mode of the fourth valve, the first port of the fourth valve is connected to the third port of the fourth valve, while the second port of the fourth valve and the fourth port of the fourth valve are closed.

[0025] In the third working mode of the fourth valve, the first port of the fourth valve is connected to the fourth port of the fourth valve, while the second port and the third port of the fourth valve are closed.

[0026] Preferably, the electric drive circuit includes an electric drive assembly, an electric drive radiator, an intercooler, and a fifth valve body. The electric drive assembly and the electric drive radiator are connected in series, and the electric drive assembly and the intercooler are connected in parallel. The fifth valve body has a first port, a second port, and a third port. The first port is connected to the fluid inlet of the electric drive radiator, the second port is connected to the fluid outlet of the electric drive assembly, and the third port is connected to the fluid outlet of the intercooler.

[0027] Preferably, the heat pump circuit is coupled to the battery circuit through a first heat exchanger. The battery circuit includes a first battery sub-circuit and a second battery sub-circuit. The first battery sub-circuit is provided with a first heat exchanger, and the second battery sub-circuit is provided with a battery. The first battery sub-circuit is coupled to the second battery sub-circuit.

[0028] Preferably, the first battery sub-circuit is coupled to the second battery sub-circuit via a flow switching device.

[0029] Preferably, the flow switching device includes a first valve body, which is provided with a first valve first port, a first valve second port, a first valve third port and a first valve fourth port. The first valve first port is connected to the fluid inlet of the first heat exchanger, the first valve second port is connected to the fluid outlet of the battery, the first valve third port is connected to the fluid outlet of the first heat exchanger and the first valve fourth port is connected to the fluid inlet of the battery.

[0030] As a preferred embodiment, the first valve body has a first valve operating mode one, a first valve operating mode two, and a first valve operating mode three;

[0031] In the first valve operating mode, the first port of the first valve is connected to the third port of the first valve, and the second port of the first valve is connected to the fourth port of the first valve.

[0032] In the second working mode of the first valve, the second port of the first valve is connected to the first port of the first valve and the fourth port of the first valve, and the third port of the first valve is connected to the first port of the first valve and the fourth port of the first valve.

[0033] In the third working mode of the first valve, the first port of the first valve is connected to the second port of the first valve, and the third port of the first valve is connected to the fourth port of the first valve.

[0034] Preferably, the flow switching device includes a second valve body, which is provided with a first port, a second port, and a third port. The second valve body is disposed in the first battery sub-circuit and connected to the second battery sub-circuit via a branch. The first port of the second valve is connected to the fluid outlet of the first heat exchanger, the second port of the second valve is connected to the fluid outlet of the battery via a branch, the third port of the second valve is connected to the fluid inlet of the first heat exchanger, and the fluid inlet of the first heat exchanger is connected to the fluid outlet of the battery via a branch.

[0035] Preferably, a first heater is provided in the battery circuit, and the first heater is connected in series with the first heat exchanger.

[0036] Preferably, a refrigerant pump is installed in the heat pump circuit, and the refrigerant pump is connected in series with the internal condenser.

[0037] Preferably, the heat pump circuit is equipped with a compressor and a one-way valve, with the compressor and internal condenser connected in series and the one-way valve and compressor connected in parallel.

[0038] Preferably, a third valve body is provided in the heat pump circuit. The third valve body is located downstream of the compressor and the one-way valve that are connected in parallel. The third valve body is provided with a first port, a second port and a third port. The first port is connected to the compressor, the second port is connected to the fluid inlet of the internal condenser and the third port is connected to the fluid outlet of the internal condenser.

[0039] A control method for a thermal management system, used to control the thermal management system, which includes a heating circuit, a battery circuit, and a heat pump circuit. The battery circuit is coupled to the heating circuit, and the heat pump circuit is coupled to the battery circuit. An internal condenser is provided in the heat pump circuit. Heat from the heating circuit is transferred to the internal condenser through the battery circuit. The control method for the thermal management system includes:

[0040] Responding to instructions in response to the target operating mode;

[0041] Control the heating circuit, battery circuit, and heat pump circuit to enable the thermal management system to operate in the target operating mode.

[0042] Preferably, the heating circuit includes an engine circuit, and the target operating mode includes at least one of a first hybrid heating mode, a second hybrid heating mode, a third hybrid no-heating mode, and a fourth hybrid no-heating mode.

[0043] In response to the command of the first hybrid heating mode, the engine circuit, battery circuit and heat pump circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and does not flow through the battery, but transfers heat to the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and flows through the internal condenser.

[0044] In response to the command of the second hybrid heating mode, the engine circuit, battery circuit and heat pump circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers heat to the battery and heat pump circuit. In the heat pump circuit, the fluid absorbs heat and then flows through the internal condenser.

[0045] In response to the command of the third hybrid no-heating mode, the operation of the engine circuit and the battery circuit is controlled. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and transfers some of the heat to the battery.

[0046] In response to the command of the fourth hybrid no-heating mode, the operation of the engine circuit and the battery circuit is controlled. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers all the heat to the battery.

[0047] As a preferred option, the first hybrid heating mode:

[0048] In the engine circuit, when the engine is running, the two-way valve opens proportionally.

[0049] In the battery circuit, the first port of the first valve is connected to the third port of the first valve, and the second port of the first valve is connected to the fourth port of the first valve.

[0050] In the heat pump circuit, the first port of the third valve is connected to the second port of the third valve, the refrigerant pump is working, and the compressor is not working.

[0051] As a preferred option, the second hybrid heating mode is:

[0052] In the engine circuit, when the engine is running, the two-way valve opens proportionally.

[0053] In the battery circuit, the third port of the first valve is connected to the first port of the first valve and the fourth port of the first valve, and the second port of the first valve is connected to the first port of the first valve and the fourth port of the first valve.

[0054] In the heat pump circuit, the first port of the third valve is connected to the second port of the third valve, the refrigerant pump is working, and the compressor is not working.

[0055] As a preferred option, the third hybrid mode without heating is:

[0056] In the engine circuit, when the engine is running, the two-way valve opens proportionally.

[0057] In the battery circuit, the third port of the first valve is connected to the first port of the first valve and the fourth port of the first valve, and the second port of the first valve is connected to the first port of the first valve and the fourth port of the first valve.

[0058] As a preferred option, in the fourth hybrid mode without heating:

[0059] In the engine circuit, when the engine is running, the two-way valve opens proportionally.

[0060] In the battery circuit, the third port of the first valve is connected to the fourth port of the first valve, and the second port of the first valve is connected to the first port of the first valve.

[0061] Preferably, the heating circuit includes an electric drive circuit, and the target operating mode includes at least one of a first pure electric heating mode and a second pure electric heating mode.

[0062] In response to the command of the first pure electric heating mode, the operation of the electric drive circuit, battery circuit and heat pump circuit is controlled. The electric drive circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and does not flow through the battery, but transfers heat to the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and flows through the internal condenser.

[0063] In response to the command of the second pure electric heating mode, the operation of the electric drive circuit, battery circuit and heat pump circuit is controlled. The electric drive circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers the heat to the battery and heat pump circuit. In the heat pump circuit, the fluid absorbs heat and then flows through the internal condenser.

[0064] As the preferred option, the first pure electric heating mode:

[0065] In the battery circuit, the first port of the first valve is connected to the third port of the first valve, and the second port of the first valve is connected to the fourth port of the first valve.

[0066] In the heat pump circuit, the first port of the third valve is connected to the second port of the third valve. The refrigerant pump does not work, but the compressor works.

[0067] In the electric drive circuit, the first port of the fourth valve is connected to the second port of the fourth valve, or the first port of the fourth valve is connected to the fourth port of the fourth valve.

[0068] As a preferred option, the second pure electric heating mode:

[0069] In the battery circuit, the third port of the first valve is connected to the first port of the first valve and the fourth port of the first valve, and the second port of the first valve is connected to the first port of the first valve and the fourth port of the first valve.

[0070] In the heat pump circuit, the first port of the third valve is connected to the second port of the third valve. The refrigerant pump does not work, but the compressor works.

[0071] In the electric drive circuit, the first port of the fourth valve is connected to the second port of the fourth valve, or the first port of the fourth valve is connected to the fourth port of the fourth valve.

[0072] Electronic devices, including:

[0073] At least one processor; and

[0074] A memory that is communicatively connected to at least one processor; wherein,

[0075] The memory stores a computer program that can be executed by at least one processor, which enables the at least one processor to perform the control method of the thermal management system described above.

[0076] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method of the aforementioned thermal management system.

[0077] Vehicles, including the aforementioned thermal management system.

[0078] The beneficial effects of this invention are:

[0079] The heat pump circuit is coupled to the heating circuit through the battery circuit. The heat pump circuit can exchange heat with the battery circuit. The heat in the heating circuit can be indirectly transferred to the internal condenser in the heat pump circuit through the battery circuit. Thus, the heat in the heating circuit can be fully utilized during heating, which eliminates the need for components such as the heater core, heater pump, electric heater, and heater pipes, thereby reducing costs. Attached Figure Description

[0080] Figure 1 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention;

[0081] Figure 2 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the first hybrid heating mode;

[0082] Figure 3 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the second hybrid heating mode;

[0083] Figure 4 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the third hybrid no-heating mode;

[0084] Figure 5 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the fourth hybrid no-heating mode;

[0085] Figure 6 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the first pure electric heating mode;

[0086] Figure 7 This is a schematic diagram of the thermal management system described in Embodiment 1 of the present invention in the second pure electric heating mode;

[0087] Figure 8 A schematic diagram of the thermal management system described in Embodiment 2 of the present invention;

[0088] Figure 9 A schematic diagram of the thermal management system described in Embodiment 3 of the present invention.

[0089] In the picture:

[0090] 1. First heat exchanger;

[0091] 2. Internal evaporator;

[0092] 3. Internal condenser;

[0093] 4. Second heat exchanger;

[0094] 5. Two-way valve;

[0095] 6. Battery;

[0096] 7. First heater;

[0097] 8. Fluorine pump;

[0098] 9. Compressor;

[0099] 10. Check valve;

[0100] 11. Electric drive assembly;

[0101] 12. Electric drive radiator;

[0102] 13. Intercooler;

[0103] 14. Engine;

[0104] 15. Liquid storage tank;

[0105] 100. First valve body; 101. First valve first port; 102. First valve second port; 103. First valve third port; 104. First valve fourth port;

[0106] 200. Second valve body; 201. First port of second valve; 202. Second port of second valve; 203. Third port of second valve;

[0107] 300. Third valve body; 301. First port of the third valve; 302. Second port of the third valve; 303. Third port of the third valve;

[0108] 400. Fourth valve body; 401. First port of the fourth valve; 402. Second port of the fourth valve; 403. Third port of the fourth valve; 404. Fourth port of the fourth valve;

[0109] 500, Fifth valve body; 501, First port of the fifth valve; 502, Second port of the fifth valve; 503, Third port of the fifth valve;

[0110] 600, Sixth valve body; 601, First port of the sixth valve; 602, Second port of the sixth valve; 603, Third port of the sixth valve; 604, Fourth port of the sixth valve. Detailed Implementation

[0111] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0112] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0113] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0114] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0115] Example 1

[0116] like Figures 1-7As shown, this embodiment provides a thermal management system, including a heating circuit, a battery circuit, and a heat pump circuit. The battery circuit is coupled to the heating circuit, and the heat pump circuit is coupled to the battery circuit. An internal condenser 3 is provided in the heat pump circuit, and heat from the heating circuit is transferred to the internal condenser 3 through the battery circuit.

[0117] In this invention, the heat pump circuit is coupled to the heating circuit through the battery circuit. The heat pump circuit can exchange heat with the battery circuit. The heat in the heating circuit can be indirectly transferred to the internal condenser 3 in the heat pump circuit through the battery circuit. Thus, the heat in the heating circuit can be fully utilized during heating, which eliminates the need for components such as the heater core, heater pump, electric heater, and heater pipe, thereby reducing costs.

[0118] Specifically, the heating circuit includes an engine circuit coupled to a battery circuit. This configuration allows heat from the engine circuit to be indirectly transferred to the internal condenser 3 via the battery circuit, thus enabling full utilization of the heat from the engine circuit during heating.

[0119] In this invention, the air conditioner of the heat pump circuit includes an internal evaporator 2 and an internal condenser 3. The internal condenser 3 is connected in series with the first heat exchanger 1 and can exchange heat with the battery circuit through the first heat exchanger 1. The heat in the engine circuit can be indirectly transferred to the internal condenser 3 through the battery circuit. Thus, when heating, the heat in the engine circuit can be fully utilized, which eliminates the need for components such as the heater core, heater water pump, electric heater, and heater water pipe, reducing costs. In the cooling mode, the internal evaporator 2 and the internal condenser 3 are connected in series in the cooling circuit. An evaporative condenser (not shown in the figure) is also provided in the cooling circuit for heat dissipation.

[0120] In this embodiment, the air conditioner in the heat pump circuit is a two-core air conditioner, which includes only an internal evaporator 2 and an internal condenser 3, saving air conditioner box space, reducing air conditioner box pressure drop, and reducing air conditioner box noise.

[0121] Specifically, such as Figure 1 As shown, the battery circuit is coupled to the engine circuit via the second heat exchanger 4. When the engine is running, the high-temperature water in the engine circuit transfers heat to the internal condenser 3 of the heat pump circuit via the low-temperature water in the battery circuit. This allows for the use of less energy and the utilization of waste heat from the engine to heat the passenger compartment or the battery 6.

[0122] More specifically, the engine circuit is equipped with a two-way valve 5. The two-way valve 5 can be switched on and off and proportionally adjusted, thereby controlling and regulating the flow rate of fluid in the engine circuit.

[0123] In this embodiment, the first heat exchanger 1 is a battery thermal management cold plate, i.e., BMSchiller. An electronic shut-off valve is also provided in the heat pump circuit. The electronic shut-off valve is located upstream of the first heat exchanger 1. The second heat exchanger 4 is a water-to-water heat exchanger. One flow path is connected to the engine circuit, and the other flow path is connected to the battery circuit.

[0124] Specifically, the battery circuit includes a first battery sub-circuit and a second battery sub-circuit. The first battery sub-circuit is equipped with a first heat exchanger 1, and the second battery sub-circuit is equipped with a battery 6. The first battery sub-circuit is coupled to the second battery sub-circuit. This arrangement allows the coolant in the battery circuit to selectively flow through or not through the battery 6, avoiding excessive heat dissipation or overheating of the battery 6.

[0125] More specifically, the first battery sub-circuit is coupled to the second battery sub-circuit via a flow switching device. This arrangement allows the fluids in the first and second battery sub-circuit to exchange with each other, improving heat exchange efficiency.

[0126] More specifically, the flow switching device includes a first valve body 100. The first battery sub-circuit is coupled to the second battery sub-circuit through the first valve body 100. The first valve body 100 is a four-way valve, equipped with a first valve first port 101, a first valve second port 102, a first valve third port 103, and a first valve fourth port 104. The first valve first port 101 is connected to the fluid inlet of the first heat exchanger 1, the first valve second port 102 is connected to the fluid outlet of the battery 6, the first valve third port 103 is connected to the fluid outlet of the first heat exchanger 1, and the first valve fourth port 104 is connected to the fluid inlet of the battery 6. This arrangement allows for easy adjustment of the coolant flow path in the battery circuit.

[0127] In this embodiment, the first valve body 100 has three operating modes: a first valve operating mode one, a first valve operating mode two, and a first valve operating mode three. In the first valve operating mode one, the opening degree of the first valve body 100 is 0%, the first valve first port 101 is connected to the first valve third port 103, and the first valve second port 102 is connected to the first valve fourth port 104. In the first valve operating mode two, the opening degree of the first valve body 100 is greater than 0% and less than 100%, the first valve second port 102 is connected to the first valve first port 101 and the first valve fourth port 104, and the first valve third port 103 is connected to the first valve first port 101 and the first valve fourth port 104. In the first valve operating mode three, the opening degree of the first valve body 100 is 100%, the first valve first port 101 is connected to the first valve second port 102, and the first valve third port 103 is connected to the first valve fourth port 104. This configuration allows for efficient adjustment of the coolant flow path in the battery circuit.

[0128] In other embodiments, the first battery sub-loop can also be coupled to the second battery sub-loop via a heat exchanger.

[0129] Specifically, a first heater 7 is provided in the battery circuit, and the first heater 7 is connected in series with the first heat exchanger 1. This arrangement allows the first heater 7 to promptly supplement the heating energy supplied to the internal condenser 3 and / or the battery 6 when the energy supply is insufficient or inefficient.

[0130] More specifically, a refrigerant pump 8 is installed in the heat pump circuit, and the refrigerant pump 8 is connected in series with the internal condenser 3. This configuration solves the problem of high energy consumption when using a heat pump circuit to absorb waste heat from the engine circuit.

[0131] More specifically, the heat pump circuit includes a compressor 9 and a one-way valve 10. The compressor 9 and the internal condenser 3 are connected in series, while the one-way valve 10 and the compressor 9 are connected in parallel. This configuration makes the refrigerant pump 8 safer and more efficient during operation.

[0132] In this embodiment, the first heater 7 is moved from the high-temperature water side to the low-temperature water side, that is, from the engine circuit to the battery circuit, which reduces the power demand and effectively shortens the path for heating the first heat exchanger 1. This shortens the waiting time of the compressor 9 in the heat pump circuit and reduces the energy consumption of the compressor 9. The first heater 7 is a thermistor, specifically a WPTC, which is located in the first battery sub-circuit and upstream of the first heat exchanger 1. The refrigerant pump 8 is a pump that works on the same principle as a water pump but transports liquid refrigerant. It can withstand high-pressure refrigerant and has much higher sealing requirements than a water pump. Typically, the flow rate is <5L / min, the power is <100W, the COP can reach 50, and the efficiency is extremely high. It is located upstream of the electronic shut-off valve upstream of the first heat exchanger 1. The compressor 9 and the one-way valve 10 connected in parallel are located downstream of the first heat exchanger 1.

[0133] Specifically, a third valve body 300 is provided in the heat pump circuit. The third valve body 300 is located downstream of the compressor 9 and the one-way valve 10, which are connected in parallel. The third valve body 300 is a three-way valve with a first port 301, a second port 302, and a third port 303. The first port 301 is connected to the compressor 9, the second port 302 is connected to the fluid inlet of the internal condenser 3, and the third port 303 is connected to the fluid outlet of the internal condenser 3. This arrangement allows the refrigerant to avoid flowing through the internal condenser 3 when only the internal evaporator 2 is working in high-temperature environments, thus ensuring the outlet air temperature. Conversely, when the ambient temperature is not too high during 5C charging, the third valve body 300 allows some refrigerant to flow through the internal condenser 3, enabling the internal condenser 3 to provide heat at a certain flow rate.

[0134] More specifically, a one-way valve is provided in the heat pump circuit. The one-way valve is located downstream of the internal condenser 3, and the internal condenser 3 is connected to the third port 303 of the third valve through the one-way valve. The above arrangement prevents the refrigerant flowing out of the third port 303 of the third valve from flowing back into the internal condenser 3.

[0135] In this embodiment, a liquid storage tank 15 is provided in the heat pump circuit. The liquid storage tank 15 is located downstream of the internal condenser 3. The fluid inlet of the internal evaporator 2, the fluid outlet of the internal condenser 3 and the fluid inlet of the first heat exchanger 1 are connected through the liquid storage tank 15. The fluorine pump 8 is located between the liquid storage tank 15 and the electronic shut-off valve.

[0136] Specifically, the heating circuit includes an electric drive circuit coupled to a battery circuit. This configuration allows heat in the electric drive circuit to be indirectly transferred to the internal condenser 3 in the heat pump circuit via the battery circuit, thereby fully utilizing the heat in the electric drive circuit during heating and enabling heat dissipation between the heat pump circuit and the battery circuit through the electric drive circuit.

[0137] More specifically, the electric drive circuit is coupled to the battery circuit via a fourth valve body 400. The electric drive circuit includes an electric drive assembly 11 and an electric drive radiator 12 connected in series. The fourth valve body 400 is a four-way valve with a first port 401, a second port 402, a third port 403, and a fourth port 404. The first port 401 is connected to the fluid inlet of the electric drive assembly 11, the second port 402 is connected to the fluid outlet of the first heat exchanger 1, the third port 403 is connected to the fluid outlet of the electric drive radiator 12, and the fourth port 404 is connected to the fluid inlet of the first heat exchanger 1, the fluid outlet of the electric drive assembly 11, and the fluid inlet of the electric drive radiator 12. This configuration allows the heat pump circuit to be selectively coupled to the battery circuit only via the first heat exchanger 1, to the electric drive circuit only via the first heat exchanger 1, or to both the battery circuit and the electric drive circuit simultaneously via the first heat exchanger 1.

[0138] In this embodiment, the fourth valve body 400 has three operating modes: fourth valve operating mode one, fourth valve operating mode two, and fourth valve operating mode three. Specifically, in fourth valve operating mode one, the first port 401 of the fourth valve is connected to the second port 402 of the fourth valve, while the third port 403 and the fourth port 404 of the fourth valve are closed. In fourth valve operating mode two, the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve, while the second port 402 and the fourth port 404 of the fourth valve are closed. In fourth valve operating mode three, the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve, while the second port 402 and the third port 403 of the fourth valve are closed. This configuration allows for efficient adjustment of the coolant flow path in the electric drive circuit.

[0139] Specifically, the electric drive circuit includes an intercooler 13 and a fifth valve body 500. The intercooler 13 and the electric drive assembly 11 are connected in parallel. The fifth valve body 500 is a three-way valve with a first port 501, a second port 502, and a third port 503. The first port 501 is connected to the fluid inlet of the electric drive radiator 12, the second port 502 is connected to the fluid outlet of the electric drive assembly 11, and the third port 503 is connected to the fluid outlet of the intercooler 13. This arrangement allows for the distribution of fluid in the electric drive circuit between the intercooler 13 and the electric drive assembly 11.

[0140] In this embodiment, the intercooler 13 is a water-cooled intercooler, i.e., WCAC, which can effectively improve cooling efficiency.

[0141] Understandably, temperature and pressure detection components are also installed in the engine circuit, battery circuit, heat pump circuit, and electric drive circuit as needed to better control and detect the operation of the engine circuit, battery circuit, heat pump circuit, and electric drive circuit. Electronic expansion valves and electronic shut-off valves can also be installed in the heat pump circuit as needed. A water pump is installed in the engine circuit, and water pumps are installed in the first battery sub-circuit and the second battery sub-circuit, respectively. A water pump is installed in the electric drive circuit to drive the internal fluid circulation.

[0142] This embodiment also provides a control method for a thermal management system, used to control the aforementioned thermal management system. The control method for the thermal management system includes:

[0143] Responding to instructions in response to the target operating mode;

[0144] Control the heating circuit, battery circuit, and heat pump circuit to ensure that the thermal management system operates in the target working mode.

[0145] Specifically, the heating circuit includes an engine circuit and an electric drive circuit, and the target operating mode includes at least one of the following: a first hybrid heating mode, a second hybrid heating mode, a third hybrid no-heating mode, a fourth hybrid no-heating mode, a first pure electric heating mode, and a second pure electric heating mode.

[0146] The six modes mentioned above are explained below:

[0147] In response to the command of the first hybrid heating mode, the engine circuit, battery circuit and heat pump circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and does not flow through the battery 6, but transfers heat to the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and flows through the internal condenser 3.

[0148] The first hybrid heating mode specifically combines passenger cabin heating with a battery-free mode, such as... Figure 2As shown, the system controls the operation of the engine circuit, battery circuit, heat pump circuit, and electric drive circuit, with the electric drive circuit operating independently. In the engine circuit, an engine 14 is installed. When engine 14 is operating and the water temperature is sufficient, the two-way valve 5 opens proportionally as needed based on the set temperature for the passenger compartment heating. The fluid flow path is "engine 14 - second heat exchanger 4 - water pump". In the battery circuit, the first port 101 of the first valve is connected to the third port 103 of the first valve, and the second port 102 of the first valve is connected to the fourth port 104 of the first valve. Fluid flowing in from the third port 103 of the first valve flows out through the first port 101 of the first valve, ultimately not flowing through the battery 6, but returning entirely to the first heat exchanger 1. The fluid circulates in the battery circuit, with the fluid flow path being "water pump - first heat exchanger 1". In the heat pump circuit, the refrigerant pump 8 is working, the compressor 9 is not working, and the fluid does not flow through the internal evaporator 2. The first port 301 of the third valve is connected to the second port 302 of the third valve, and the fluid flow path is "first heat exchanger 1 - one-way valve 10 - internal condenser 3 - liquid tank 15 - refrigerant pump 8 - electronic shut-off valve". In the electric drive circuit, the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve or the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve. Overall, the waste heat of the engine 14 is transferred to the heat pump circuit through the battery circuit, and finally heats the passenger compartment through the internal condenser 3.

[0149] In response to the command of the second hybrid heating mode, the engine circuit, battery circuit and heat pump circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers the heat to the battery 6 and the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and then flows through the internal condenser 3.

[0150] The second hybrid heating mode specifically combines passenger cabin heating with battery heating, and is a range-extended hybrid mode. Figure 3As shown, the system controls the operation of the engine circuit, battery circuit, heat pump circuit, and electric drive circuit, with the electric drive circuit operating independently. In the engine circuit, engine 14 is running and the water temperature is sufficient. Based on heating demand, the two-way valve 5 opens proportionally as needed, with the fluid flow path being "engine 14 - second heat exchanger 4 - water pump". In the battery circuit, the first heater 7 is not operating. The third port 103 of the first valve is connected to the first port 101 and the fourth port 104 of the first valve, and the second port 102 of the first valve is connected to the first port 101 and the fourth port 104 of the first valve. Part of the fluid flowing in from the third port 103 of the first valve flows out through the first port 101 of the first valve and returns to the first heat exchanger 1; the other part flows out through the fourth port 104 of the first valve and flows to the battery 6. The fluid flowing from the second port 102 of the first valve... The incoming fluid flows out through the first port 101 of the first valve and then to the first heat exchanger 1, and another part flows out through the fourth port 104 of the first valve and then back to the battery 6. In the heat pump circuit, the refrigerant pump 8 is working and the compressor 9 is not working. The fluid does not flow through the internal evaporator 2. The first port 301 of the third valve is connected to the second port 302 of the third valve. The fluid flow path is "first heat exchanger 1-one-way valve 10-internal condenser 3-storage tank 15-refrigerant pump 8-electronic shut-off valve". In the electric drive circuit, the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve or the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve. Overall, the waste heat of the engine 14 is transferred to the heat pump circuit through the battery circuit, and the intermediate part of the heat is transferred to the battery 6. Finally, the heat is supplied to the passenger compartment through the internal condenser 3.

[0151] In response to the command of the third hybrid no-heating mode, the engine circuit and battery circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and transfers some of the heat to the battery 6.

[0152] The third hybrid mode without heating specifically refers to a mode where the passenger cabin has no heating requirement plus battery heating. Figure 4As shown, the system controls the operation of the engine circuit, battery circuit, and electric drive circuit, with the electric drive circuit operating independently. In the engine circuit, engine 14 is running and the water temperature is sufficient. Based on the heating requirements of battery 6, the two-way valve 5 opens proportionally as needed, with the fluid flow path being "engine 14 - second heat exchanger 4 - water pump". In the battery circuit, the first heater 7 is not operating. The third port 103 of the first valve is connected to the first port 101 and the fourth port 104 of the first valve, and the second port 102 of the first valve is also connected to the first port 101 and the fourth port 104 of the first valve. A portion of the fluid flowing into the third port 103 of the first valve... After flowing out through the first port 101 of the first valve, it flows back to the first heat exchanger 1. Another part flows out through the fourth port 104 of the first valve and then to the battery 6. The fluid flowing in from the second port 102 of the first valve, part of it flows out through the first port 101 of the first valve and then to the first heat exchanger 1, and the other part flows out through the fourth port 104 of the first valve and then back to the battery 6. In the electric drive circuit, the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve or the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve. Overall, the waste heat of the engine 14 is transferred to the battery circuit, and the heat in the battery circuit is partially transferred to the battery 6.

[0153] In response to the command of the fourth hybrid no-heating mode, the engine circuit and battery circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers all the heat to the battery 6.

[0154] The fourth hybrid mode without heating specifically refers to a mode where the passenger compartment has no heating requirement plus battery heating. Figure 5 As shown, the system controls the operation of the engine circuit, battery circuit, and electric drive circuit, with the electric drive circuit operating independently. In the engine circuit, engine 14 is running and the water temperature is sufficient. Based on the heating requirements of battery 6, two-way valve 5 opens proportionally as needed. The fluid flow path is "engine 14 - second heat exchanger 4 - water pump". In the battery circuit, the first heater 7 is not operating. The third port 103 of the first valve is connected to the fourth port 104 of the first valve, and the second port 102 of the first valve is connected to the first port 101 of the first valve. All fluid flowing in from the third port 103 of the first valve passes through... The fluid flowing out from the fourth port 104 of the first valve, after passing through the battery 6, flows out through the first port 101 of the first valve and finally returns to the first heat exchanger 1. The fluid flow path is "first heat exchanger 1-battery 6". All the fluid flows through the battery 6. In the electric drive circuit, the first port 401 of the fourth valve is connected to the third port 403 of the fourth valve or the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve. Overall, the waste heat of the engine 14 is transferred to the battery circuit, and all the heat in the battery circuit is transferred to the battery 6.

[0155] In response to the command of the first pure electric heating mode, the operation of the electric drive circuit, battery circuit and heat pump circuit is controlled. The electric drive circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and does not flow through the battery 6, but transfers heat to the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and flows through the internal condenser 3.

[0156] The first pure electric heating mode specifically refers to the passenger cabin heating mode, such as... Figure 6 As shown, the system controls the operation of the battery circuit, heat pump circuit, and electric drive circuit. The electric drive circuit is coupled to the battery circuit. In the battery circuit, the first heater 7 is not working. The first port 101 of the first valve is connected to the third port 103 of the first valve, and the second port 102 of the first valve is connected to the fourth port 104 of the first valve. The fluid flowing in from the third port 103 of the first valve flows out through the first port 101 of the first valve and does not flow through the battery 6. Instead, it returns to the first heat exchanger 1 and circulates in the first battery sub-circuit. In the heat pump circuit, the refrigerant pump 8 is not working, the compressor 9 is working, and the fluid does not flow through the internal evaporator 2. The first port 301 of the third valve is connected to the second port 302 of the third valve, operating in the manner of a traditional heat pump. The first heat exchanger 1... The electronic shut-off valve at the front cuts off the flow, and the low-pressure, low-temperature liquid refrigerant or two-phase refrigerant enters the first heat exchanger 1. It absorbs heat and evaporates in the first heat exchanger 1 to become a low-pressure, low-temperature gas. It is then compressed by the compressor 9 into a high-pressure, high-temperature gas, and then condensed by the internal condenser 3 into a high-pressure, high-temperature liquid. This cycle repeats, and the fluid flow path is "first heat exchanger 1 - compressor 9 - internal condenser 3 - liquid tank 15 - electronic shut-off valve". In the electric drive circuit, the first port 401 of the fourth valve is connected to the second port 402 of the fourth valve or the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve. Overall, the heat generated by the operation of the electric drive assembly 11 is transferred to the heat pump circuit through the battery circuit, and finally heats the crew compartment through the internal condenser 3.

[0157] In response to the command of the second pure electric heating mode, the operation of the electric drive circuit, battery circuit and heat pump circuit is controlled. The electric drive circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers the heat to the battery 6 and the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and then flows through the internal condenser 3.

[0158] The second pure electric heating mode specifically refers to the passenger cabin heating mode, such as... Figure 7As shown, the system controls the operation of the battery circuit, heat pump circuit, and electric drive circuit, with the electric drive circuit coupled to the battery circuit. In the battery circuit, the first heater 7 is not operating. The third port 103 of the first valve is connected to the first port 101 and the fourth port 104 of the first valve, and the second port 102 of the first valve is also connected to the first port 101 and the fourth port 104 of the first valve. Part of the fluid flowing into the third port 103 of the first valve flows out through the first port 101 of the first valve and returns to the first heat exchanger 1, while the other part flows out through the fourth port 104 of the first valve and flows to the battery 6. Similarly, part of the fluid flowing into the second port 102 of the first valve flows out through the first port 101 of the first valve and flows to the first heat exchanger 1, while the other part flows out through the fourth port 104 of the first valve and returns to the battery 6. In the heat pump circuit, the refrigerant pump 8 is not operating, the compressor 9 is operating, and the fluid does not flow through the internal evaporator. 2. The first port 301 of the third valve is connected to the second port 302 of the third valve. It works in the traditional way of heat pump. The electronic shut-off valve before the first heat exchanger 1 cuts off the flow. The first heat exchanger 1 is filled with low-pressure, low-temperature liquid refrigerant or two-phase refrigerant. It absorbs heat and evaporates from the first heat exchanger 1 to become a low-pressure, low-temperature gas. It is then compressed by the compressor 9 into a high-pressure, high-temperature gas. Then it is condensed by the internal condenser 3 into a high-pressure, high-temperature liquid. This cycle repeats. The fluid flow path is "first heat exchanger 1 - compressor 9 - internal condenser 3 - liquid tank 15 - electronic shut-off valve". In the electric drive circuit, the first port 401 of the fourth valve is connected to the second port 402 of the fourth valve or the first port 401 of the fourth valve is connected to the fourth port 404 of the fourth valve. Overall, the heat generated by the operation of the battery 6 and the electric drive assembly 11 is transferred to the heat pump circuit through the battery circuit and finally heats the crew compartment through the internal condenser 3.

[0159] In this embodiment, the target operating modes include a first hybrid heating mode, a second hybrid heating mode, a third hybrid no-heating mode, a fourth hybrid no-heating mode, a first pure electric heating mode, and a second pure electric heating mode. The thermal management system can operate in one mode as needed.

[0160] This embodiment also provides an electronic device, including:

[0161] At least one processor; and

[0162] A memory that is communicatively connected to at least one processor; wherein,

[0163] The memory stores a computer program that can be executed by at least one processor, which enables the at least one processor to perform the control method of the thermal management system described above.

[0164] This embodiment also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method of the thermal management system described above.

[0165] This embodiment also provides a vehicle including the thermal management system described above.

[0166] Example 2

[0167] This embodiment provides a thermal management system, control method, electronic device, medium, and vehicle. Components identical or corresponding to those in Embodiment 1 are referred to using the same or corresponding reference numerals as in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 are described below.

[0168] like Figure 8 As shown, the difference between the thermal management system in this embodiment and the thermal management system in embodiment one is that the flow switching device includes a second valve body 200, and the first valve body 100 is replaced by the second valve body 200.

[0169] Specifically, the first battery sub-circuit is coupled to the second battery sub-circuit through the second valve body 200. The second valve body 200 is a three-way valve, equipped with a second valve first interface 201, a second valve second interface 202, and a second valve third interface 203. The second valve body 200 is disposed in the first battery sub-circuit and connected to the second battery sub-circuit through a branch. The second valve first interface 201 is connected to the fluid outlet of the first heat exchanger 1, the second valve second interface 202 is connected to the fluid outlet of the battery 6 through a branch, the second valve third interface 203 is connected to the fluid inlet of the first heat exchanger 1, and the fluid inlet of the first heat exchanger 1 is connected to the fluid outlet of the battery 6 through a branch.

[0170] In this embodiment, by replacing the first valve body 100 with the second valve body 200, the cost of the system is effectively reduced.

[0171] Example 3

[0172] This embodiment provides a thermal management system, control method, electronic device, medium, and vehicle. Components identical or corresponding to those in Embodiment 1 are referred to using the same or corresponding reference numerals as in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 are described below.

[0173] like Figure 9 As shown, the difference between the thermal management system in this embodiment and the thermal management system in Embodiment 1 is that the second heat exchanger 4 is replaced with the sixth valve body 600, so that the battery circuit is coupled to the engine circuit through the sixth valve body 600. Replacing the second heat exchanger 4 with the sixth valve body 600 reduces the system cost and makes the heat transfer between the engine circuit and the battery circuit more efficient.

[0174] Specifically, the engine circuit includes an engine 14, and the sixth valve body 600 is a four-way valve with a first port 601, a second port 602, a third port 603, and a fourth port 604. The first port 601 is connected to the fluid outlet of the first heat exchanger 1, the fourth port 604 is connected to the fluid inlet of the first heat exchanger 1, the second port 602 is connected to the fluid inlet of the engine 14, and the third port 603 is connected to the fluid outlet of the engine 14. This configuration allows for more reliable regulation of the fluid flow paths in the engine circuit and the battery circuit.

[0175] More specifically, the sixth valve body 600 is located in the first battery sub-circuit, upstream of the first heat exchanger 1.

[0176] It is understood that the above embodiments can be selectively combined as needed, provided that the combination of these technical features does not contradict each other. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. These embodiments not explicitly written should also be considered to be within the scope of this specification.

[0177] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A thermal management system, characterized in that, include: Heating circuit; The battery circuit is coupled to the heating circuit. The heat pump circuit is coupled to the battery circuit. An internal condenser (3) is provided in the heat pump circuit. The heat in the heating circuit is transferred to the internal condenser (3) through the battery circuit.

2. The thermal management system according to claim 1, characterized in that, The heating circuit includes an engine circuit, which is coupled to the battery circuit.

3. The thermal management system according to claim 1 or 2, characterized in that, The engine circuit is coupled to the battery circuit via the second heat exchanger (4).

4. The thermal management system according to claim 1 or 2, characterized in that, The engine circuit is coupled to the battery circuit via the sixth valve body (600).

5. The thermal management system according to any one of claims 1-4, characterized in that, The sixth valve body (600) is provided with a sixth valve first interface (601), a sixth valve second interface (602), a sixth valve third interface (603) and a sixth valve fourth interface (604). The sixth valve first interface (601) and the sixth valve fourth interface (604) are respectively connected to the battery circuit. The sixth valve second interface (602) is connected to the fluid inlet of the engine (14) on the engine circuit. The sixth valve third interface (603) is connected to the fluid outlet of the engine (14).

6. The thermal management system according to any one of claims 1-5, characterized in that, The engine circuit is equipped with a two-way valve (5), which is connected in series with the engine (14) in the engine circuit.

7. The thermal management system according to any one of claims 1-6, characterized in that, The heating circuit includes an electric drive circuit, which is coupled to the battery circuit.

8. The thermal management system according to any one of claims 1-7, characterized in that, The electric drive circuit is coupled to the battery circuit through the fourth valve body (400).

9. The thermal management system according to any one of claims 1-8, characterized in that, The fourth valve body (400) is provided with a fourth valve first port (401), a fourth valve second port (402), a fourth valve third port (403) and a fourth valve fourth port (404). The electric drive circuit is provided with an electric drive assembly (11) and an electric drive heat sink (12) connected in series. The fourth valve first port (401) is connected to the fluid inlet of the electric drive assembly (11), the fourth valve second port (402) is connected to the battery circuit, the fourth valve third port (403) is connected to the fluid outlet of the electric drive heat sink (12), and the fourth valve fourth port (404) is connected to the battery circuit, the fluid outlet of the electric drive assembly (11) and the fluid inlet of the electric drive heat sink (12).

10. The thermal management system according to any one of claims 1-9, characterized in that, The fourth valve body (400) has four working modes: fourth valve mode one, fourth valve mode two, and fourth valve mode three. In the fourth valve operating mode, the first port (401) of the fourth valve is connected to the second port (402) of the fourth valve, and the third port (403) and the fourth port (404) of the fourth valve are closed. In the second working mode of the fourth valve, the first port (401) of the fourth valve is connected to the third port (403) of the fourth valve, and the second port (402) and the fourth port (404) of the fourth valve are closed. In the third working mode of the fourth valve, the first port (401) of the fourth valve is connected to the fourth port (404) of the fourth valve, while the second port (402) and the third port (403) of the fourth valve are closed.

11. The thermal management system according to any one of claims 1-10, characterized in that, The electric drive circuit is provided with an electric drive assembly (11), an electric drive radiator (12), an intercooler (13) and a fifth valve body (500). The electric drive assembly (11) and the electric drive radiator (12) are connected in series and the electric drive assembly (11) and the intercooler (13) are connected in parallel. The fifth valve body (500) is provided with a fifth valve first port (501), a fifth valve second port (502) and a fifth valve third port (503). The fifth valve first port (501) is connected to the fluid inlet of the electric drive radiator (12), the fifth valve second port (502) is connected to the fluid outlet of the electric drive assembly (11), and the fifth valve third port (503) is connected to the fluid outlet of the intercooler (13).

12. The thermal management system according to any one of claims 1-11, characterized in that, The heat pump circuit is coupled to the battery circuit through the first heat exchanger (1). The battery circuit includes a first battery sub-circuit and a second battery sub-circuit. The first battery sub-circuit is equipped with the first heat exchanger (1), and the second battery sub-circuit is equipped with a battery (6). The first battery sub-circuit is coupled to the second battery sub-circuit.

13. The thermal management system according to any one of claims 1-12, characterized in that, The first battery sub-circuit is coupled to the second battery sub-circuit via a flow switching device.

14. The thermal management system according to any one of claims 1-13, characterized in that, The flow switching device includes a first valve body (100), which is provided with a first valve first port (101), a first valve second port (102), a first valve third port (103) and a first valve fourth port (104). The first valve first port (101) is connected to the fluid inlet of the first heat exchanger (1), the first valve second port (102) is connected to the fluid outlet of the battery (6), the first valve third port (103) is connected to the fluid outlet of the first heat exchanger (1), and the first valve fourth port (104) is connected to the fluid inlet of the battery (6).

15. The thermal management system according to any one of claims 1-14, characterized in that, The first valve body (100) has a first valve working mode one, a first valve working mode two and a first valve working mode three; In the first valve working mode, the first valve first port (101) is connected to the first valve third port (103), and the first valve second port (102) is connected to the first valve fourth port (104); In the second working mode of the first valve, the second port (102) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve, and the third port (103) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve. In the third working mode of the first valve, the first port (101) of the first valve is connected to the second port (102) of the first valve, and the third port (103) of the first valve is connected to the fourth port (104) of the first valve.

16. The thermal management system according to any one of claims 1-13, characterized in that, The flow switching device includes a second valve body (200), which is provided with a second valve first port (201), a second valve second port (202) and a second valve third port (203). The second valve body (200) is located in the first battery sub-circuit and is connected to the second battery sub-circuit through a branch. The second valve first port (201) is connected to the fluid outlet of the first heat exchanger (1). The second valve second port (202) is connected to the fluid outlet of the battery (6) through a branch. The second valve third port (203) is connected to the fluid inlet of the first heat exchanger (1). The fluid inlet of the first heat exchanger (1) is connected to the fluid outlet of the battery (6) through a branch.

17. The thermal management system according to any one of claims 1-16, characterized in that, A first heater (7) is provided in the battery circuit, and the first heater (7) is connected in series with the first heat exchanger (1).

18. The thermal management system according to any one of claims 1-17, characterized in that, A refrigerant pump (8) is installed in the heat pump circuit, and the refrigerant pump (8) is connected in series with the internal condenser (3).

19. The thermal management system according to any one of claims 1-18, characterized in that, The heat pump circuit is equipped with a compressor (9) and a check valve (10). The compressor (9) and the internal condenser (3) are connected in series, and the check valve (10) and the compressor (9) are connected in parallel.

20. The thermal management system according to any one of claims 1-19, characterized in that, A third valve body (300) is provided in the heat pump circuit. The third valve body (300) is located downstream of the compressor (9) and the check valve (10) which are connected in parallel. The third valve body (300) is provided with a first port (301), a second port (302) and a third port (303). The first port (301) is connected to the compressor (9), the second port (302) is connected to the fluid inlet of the internal condenser (3), and the third port (303) is connected to the fluid outlet of the internal condenser (3).

21. A control method for a thermal management system, characterized in that, The thermal management system is used to control a heating system, which includes a heating circuit, a battery circuit, and a heat pump circuit. The battery circuit is coupled to the heating circuit, and the heat pump circuit is coupled to the battery circuit. An internal condenser (3) is provided in the heat pump circuit. Heat in the heating circuit is transferred to the internal condenser (3) through the battery circuit. The control method of the thermal management system includes: Responding to instructions in response to the target operating mode; Control the heating circuit, battery circuit, and heat pump circuit to enable the thermal management system to operate in the target operating mode.

22. The control method for the thermal management system according to claim 21, characterized in that, The heating circuit includes an engine circuit, and the target operating mode includes at least one of the following: a first hybrid heating mode, a second hybrid heating mode, a third hybrid no-heating mode, and a fourth hybrid no-heating mode. In response to the command of the first hybrid heating mode, the engine circuit, battery circuit and heat pump circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and does not flow through the battery (6), but transfers heat to the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and flows through the internal condenser (3). In response to the command of the second hybrid heating mode, the engine circuit, battery circuit and heat pump circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers heat to the battery (6) and the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and then flows through the internal condenser (3). In response to the command of the third hybrid no-heating mode, the engine circuit and battery circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and transfers some of the heat to the battery (6). In response to the command of the fourth hybrid no-heating mode, the engine circuit and the battery circuit are controlled to operate. The engine circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers all the heat to the battery (6).

23. The control method for the thermal management system according to claim 21 or 22, characterized in that, In the first hybrid heating mode: In the engine circuit, the engine (14) is working, and the two-way valve (5) is opened proportionally; In the battery circuit, the first valve first port (101) is connected to the first valve third port (103), and the first valve second port (102) is connected to the first valve fourth port (104); In the heat pump circuit, the first port (301) of the third valve is connected to the second port (302) of the third valve, the refrigerant pump (8) is working, and the compressor (9) is not working.

24. The control method for the thermal management system according to any one of claims 21-23, characterized in that, Second hybrid heating mode: In the engine circuit, the engine (14) is working, and the two-way valve (5) is opened proportionally; In the battery circuit, the third port (103) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve, and the second port (102) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve. In the heat pump circuit, the first port (301) of the third valve is connected to the second port (302) of the third valve, the refrigerant pump (8) is working, and the compressor (9) is not working.

25. The control method for the thermal management system according to any one of claims 21-24, characterized in that, The third hybrid mode without heating: In the engine circuit, the engine (14) is working, and the two-way valve (5) is opened proportionally; In the battery circuit, the third port (103) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve, and the second port (102) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve.

26. The control method for the thermal management system according to any one of claims 21-25, characterized in that, Fourth hybrid mode without heating: In the engine circuit, the engine (14) is working, and the two-way valve (5) is opened proportionally; In the battery circuit, the third port (103) of the first valve is connected to the fourth port (104) of the first valve, and the second port (102) of the first valve is connected to the first port (101) of the first valve.

27. The control method for the thermal management system according to any one of claims 21-26, characterized in that, The heating circuit includes an electric drive circuit, and the target operating mode includes at least one of a first pure electric heating mode and a second pure electric heating mode. In response to the command of the first pure electric heating mode, the operation of the electric drive circuit, the battery circuit and the heat pump circuit are controlled. The electric drive circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and does not flow through the battery (6), but transfers heat to the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and flows through the internal condenser (3). In response to the command of the second pure electric heating mode, the operation of the electric drive circuit, the battery circuit and the heat pump circuit are controlled. The electric drive circuit transfers heat to the battery circuit. In the battery circuit, the fluid absorbs heat and then transfers the heat to the battery (6) and the heat pump circuit. In the heat pump circuit, the fluid absorbs heat and then flows through the internal condenser (3).

28. The control method for the thermal management system according to any one of claims 21-27, characterized in that, In the first pure electric heating mode: In the battery circuit, the first valve first port (101) is connected to the first valve third port (103), and the first valve second port (102) is connected to the first valve fourth port (104); In the heat pump circuit, the first port (301) of the third valve is connected to the second port (302) of the third valve. The refrigerant pump (8) is not working, and the compressor (9) is working. In the electric drive circuit, the first port (401) of the fourth valve is connected to the second port (402) of the fourth valve or the first port (401) of the fourth valve is connected to the fourth port (404).

29. The control method for the thermal management system according to any one of claims 21-28, characterized in that, Second pure electric heating mode: In the battery circuit, the third port (103) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve, and the second port (102) of the first valve is connected to the first port (101) of the first valve and the fourth port (104) of the first valve. In the heat pump circuit, the first port (301) of the third valve is connected to the second port (302) of the third valve. The refrigerant pump (8) is not working, and the compressor (9) is working. In the electric drive circuit, the first port (401) of the fourth valve is connected to the second port (402) of the fourth valve or the first port (401) of the fourth valve is connected to the fourth port (404).

30. An electronic device, characterized in that, include: At least one processor; as well as A memory that is communicatively connected to at least one processor; wherein, The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to perform the control method of the thermal management system according to any one of claims 21-29.

31. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method of the thermal management system according to any one of claims 21-29.

32. A vehicle, characterized in that, Includes the thermal management system described in any one of claims 1-20.

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