Vehicle thermal management system, control method of vehicle thermal management system and electronic equipment

Abstract

The invention discloses a vehicle thermal management system, a control method of the vehicle thermal management system and electronic equipment. Control of the vehicle heat management system comprises a compressor, an external condenser, a battery cold plate, an evaporator, an internal condenser, a heat exchanger, a radiator and a motor. The compressor is controllably communicated with the external condenser, the battery cold plate, the evaporator, the internal condenser and a first heat exchange channel of the heat exchanger through a refrigerant channel; the oil refrigerant heat exchanger is controllably communicated with the compressor through a refrigerant channel, and the oil-water heat exchanger is controllably communicated with the second heat exchange channel of the heat exchanger and the radiator through a cooling liquid channel. According to the vehicle thermal management system, the battery is directly cooled and heated through the battery cold plate by using the refrigerant, the interior of the vehicle is cooled by using the evaporator, and the interior of the vehicle is heated by using the internal condenser. And meanwhile, the battery cold plate is connected with a motor waterway and an outdoor environment, motor electric control waste heat and environment waste heat are fully utilized, the system cost is lower, and the efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle thermal management system, a control method for the vehicle thermal management system, an electronic device, a storage medium, and a computer program product. Background Art

[0002] Existing non-heat pump system battery direct cooling models use refrigerant to directly cool the battery. When solving the cooling and heating needs of the vehicle interior and battery, the following modes are selected:

[0003] 1. In-vehicle cooling: direct cooling of evaporator refrigerant;

[0004] 2. In-car heating: ① The hot water generated when the engine is started is blown into the car through the heating core; ② Air-source electric auxiliary heating (Air Positive Temperature Coefficien, PTC) is used to heat the air and blow it into the car;

[0005] 3. Battery cooling: direct cooling of battery cooler with refrigerant;

[0006] 4. Battery heating: PTC heating film heats the battery.

[0007] Therefore, existing direct-cooling hybrid models only use refrigerant to directly cool the battery, but use PTC heating film to heat the battery.

[0008] Therefore, the vehicle thermal management system of the prior art battery direct cooling model has the following disadvantages:

[0009] 1. The battery requires a cooler and a PTC heating film, resulting in the use of two PTCs for interior heating and battery heating, which is costly;

[0010] 2. Only PTC heating is used. The interior heating, battery heating, and motor cooling are completely independent and uncoupled. The heat pump system cannot be used to absorb waste heat from the external environment and the motor. Therefore, the motor's electronically controlled waste heat cannot be used to heat the battery and the interior of the vehicle, resulting in low heating efficiency.

[0011] 3. The battery and radiator are not coupled. Battery cooling can only be achieved by turning on the compressor and using refrigerant. When the heat output is low, the radiator cannot be used for heat dissipation, resulting in low efficiency. Summary of the Invention

[0012] Based on this, it is necessary to provide a vehicle thermal management system, a control method for the vehicle thermal management system, an electronic device, a storage medium and a computer program product to address the technical problems of high cost and low efficiency of the vehicle thermal management system of the existing battery direct cooling vehicle model.

[0013] The present invention provides a vehicle thermal management system, comprising: a compressor, an external condenser, a battery cold plate, an evaporator, an internal condenser, a heat exchanger, a radiator, and a motor;

[0014] The compressor is controllably connected to the external condenser, the battery cold plate, the evaporator, the internal condenser, and the first heat exchange channel of the heat exchanger through a refrigerant channel, and the refrigerant channel is used for refrigerant circulation;

[0015] The oil cooler of the motor is connected to the oil refrigerant heat exchanger and the oil-water heat exchanger respectively. The oil refrigerant heat exchanger is controllably connected to the compressor through a refrigerant channel. The oil-water heat exchanger is controllably connected to the second heat exchange channel of the heat exchanger and the radiator through a coolant channel. The coolant channel is used for cooling water circulation.

[0016] Furthermore, the oil-water heat exchanger is controllably connected to the second heat exchange channel of the heat exchanger and the radiator in sequence.

[0017] Furthermore, the compressor is controllably connected to the external condenser and the oil refrigerant heat exchanger in sequence.

[0018] Furthermore, the compressor is controllably connected to the external condenser and the evaporator in sequence.

[0019] Furthermore, the compressor is controllably connected to the internal condenser and the heat exchanger in sequence.

[0020] Furthermore, the compressor is controllably connected to the external condenser and the battery cold plate in sequence.

[0021] Furthermore, the compressor is controllably connected to the battery cold plate and the first heat exchange channel of the heat exchanger in sequence.

[0022] The present invention provides a control method for a vehicle thermal management system as described above, comprising:

[0023] Get the working mode;

[0024] According to the working mode, the compressor is controlled to be connected with the external condenser, the battery cold plate, the evaporator, the internal condenser and / or the first heat exchange channel of the heat exchanger, or the oil refrigerant heat exchanger is controlled to be connected with the compressor, or the oil-water heat exchanger is controlled to be connected with the second heat exchange channel of the heat exchanger and the radiator.

[0025] Furthermore, according to the working mode, controlling the compressor to communicate with the external condenser, the battery cold plate, the evaporator, the internal condenser and / or the first heat exchange channel of the heat exchanger, or controlling the oil refrigerant heat exchanger to communicate with the compressor, or controlling the oil-water heat exchanger to communicate with the second heat exchange channel of the heat exchanger and the radiator includes:

[0026] When the working mode is a heat dissipation mode in which the motor uses a radiator, controlling the oil-water heat exchanger to be connected to the second heat exchange channel of the heat exchanger and the radiator in sequence;

[0027] When the working mode is the motor refrigerant cooling mode, controlling the compressor to be connected to the external condenser and the oil refrigerant heat exchanger in sequence;

[0028] When the working mode is the in-vehicle cooling only mode, controlling the compressor to be connected to the external condenser and the evaporator in sequence;

[0029] When the operating mode is the in-vehicle heating-only mode, the compressor is controlled to sequentially communicate with the internal condenser and the first heat exchange channel of the heat exchanger, and the oil-water heat exchanger is controlled to sequentially communicate with the second heat exchange channel of the heat exchanger and the radiator;

[0030] When the operating mode is the in-vehicle heating and dehumidification mode, the compressor is controlled to communicate with the external condenser and the evaporator in sequence, the compressor is controlled to communicate with the internal condenser and the first heat exchange channel of the heat exchanger in sequence, and the oil-water heat exchanger is controlled to communicate with the second heat exchange channel of the heat exchanger and the radiator in sequence;

[0031] When the operating mode is a battery cooling mode, controlling the compressor to sequentially connect to the external condenser and the battery cold plate;

[0032] When the operating mode is the battery heating mode, the compressor is controlled to be connected to the battery cold plate and the first heat exchange channel of the heat exchanger in sequence, and the oil-water heat exchanger is controlled to be connected to the second heat exchange channel of the heat exchanger and the radiator in sequence;

[0033] When the operating mode is in-vehicle cooling and battery cooling mode, controlling the compressor to sequentially communicate with the external condenser and the evaporator, and controlling the compressor to sequentially communicate with the external condenser and the battery cold plate;

[0034] When the operating mode is vehicle interior cooling and battery heating mode, the compressor is controlled to sequentially communicate with the external condenser and evaporator, the compressor is controlled to sequentially communicate with the battery cold plate and the first heat exchange channel of the heat exchanger, and the oil-water heat exchanger is controlled to sequentially communicate with the second heat exchange channel of the heat exchanger and the radiator;

[0035] When the operating mode is vehicle interior heating and battery cooling mode, the compressor is controlled to sequentially communicate with the internal condenser and the first heat exchange channel of the heat exchanger, the compressor is controlled to sequentially communicate with the external condenser and the battery cold plate, and the oil-water heat exchanger is controlled to sequentially communicate with the second heat exchange channel of the heat exchanger and the radiator;

[0036] When the working mode is in-vehicle heating and battery heating mode, the compressor is connected to the internal condenser and the first heat exchange channel of the heat exchanger in sequence, and the compressor is controlled to be connected to the battery cold plate and the first heat exchange channel of the heat exchanger in sequence, and the oil-water heat exchanger is controlled to be connected to the second heat exchange channel of the heat exchanger and the radiator in sequence.

[0037] The present invention provides an electronic device, comprising:

[0038] at least one processor; and,

[0039] a memory communicatively connected to at least one of the processors; wherein,

[0040] The memory stores instructions that can be executed by the at least one processor. The instructions are executed by the at least one processor to enable the at least one processor to perform the control method of the vehicle thermal management system as described above.

[0041] The present invention provides a storage medium storing computer instructions. When a computer executes the computer instructions, the storage medium is used to execute all steps of the control method of the vehicle thermal management system as described above.

[0042] The present invention provides a computer program product, comprising a computer program / instruction, which implements the control method of the vehicle thermal management system as described above when the computer program / instruction is executed by a processor.

[0043] The vehicle thermal management system of this invention uses a battery cold plate to directly cool and heat the battery using a refrigerant, while the evaporator cools the vehicle interior and the internal condenser heats it. Furthermore, the battery cold plate is connected to the motor water circuit and the outdoor environment, fully utilizing waste heat from the motor's electronic control unit and the surrounding environment. Furthermore, the motor's rotor heat generation eliminates the need for PTC, resulting in lower system costs and higher efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a system principle diagram of a vehicle thermal management system according to an embodiment of the present invention;

[0045] Figure 2 This is a schematic diagram of the connection between the motor, the oil refrigerant heat exchanger, and the oil-water heat exchanger according to one embodiment of the present invention;

[0046] Figure 3 This is a diagram showing the connection relationship between a compressor and vehicle components according to an embodiment of the present invention;

[0047] Figure 4 This is a flowchart of a control method for a vehicle thermal management system as described above according to an embodiment of the present invention;

[0048] Figure 5 The figure is a schematic diagram of the hardware structure of an electronic device of the present invention.

[0049] Marking Description

[0050] 1. Compressor; 2. External condenser; 3. Battery cold plate; 4. Evaporator; 5. Internal condenser; 6. Heat exchanger; 7. Radiator; 8. Motor; 80. Oil cooler; 91. Oil-water heat exchanger; 92. Oil-refrigerant heat exchanger; 10. Three-way valve; 11. Kettle; 12. Water pump; 13. Electronic control module; 14. Radiator fan assembly; 15. Air heater; 16. Air conditioning blower. DETAILED DESCRIPTION

[0051] The following further describes specific embodiments of the present invention with reference to the accompanying drawings. Like components are denoted by like reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0052] like Figure 1 The figure shows a system schematic diagram of a vehicle thermal management system according to an embodiment of the present invention, comprising: a compressor 1, an external condenser 2, a battery cold plate 3, an evaporator 4, an internal condenser 5, a heat exchanger 6, a radiator 7, and a motor 8 (which may include a reducer);

[0053] The compressor 1 is controllably connected to the external condenser 2, the battery cold plate 3, the evaporator 4, the internal condenser 5, and the first heat exchange channel of the heat exchanger 6 through a refrigerant channel, and the refrigerant channel is used for refrigerant circulation;

[0054] The oil cooler 80 of the motor 8 is connected to the oil refrigerant heat exchanger 92 and the oil-water heat exchanger 91 respectively. The oil refrigerant heat exchanger 92 is controllably connected to the compressor 1 through a refrigerant channel. The oil-water heat exchanger 91 is controllably connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 through a coolant channel. The coolant channel is used for cooling water circulation.

[0055] Specifically, the compressor 1 is controllably connected to the external condenser 2, the battery cold plate 3, the evaporator 4, the internal condenser 5, and the first heat exchange channel of the heat exchanger 6 through the refrigerant channel for the circulation of the refrigerant. The battery is cooled and heated by the refrigerant entering the battery cold plate 3. The heat exchanger 6 includes a first heat exchange channel and a second heat exchange channel, and the first heat exchange channel and the second heat exchange channel exchange heat inside the heat exchanger 6. Among them, the refrigerant is compressed into a high-temperature and high-pressure gas in the compressor 1 and then enters the condenser. The condenser dissipates the heat of the refrigerant by exchanging heat with the outside air, so that the refrigerant is cooled and condensed into a liquid (the principles of the external condenser 2 and the internal condenser 5 are the same). The refrigerant evaporates from liquid to gas in the evaporator 4, absorbing heat from the air flowing through, thereby reducing the temperature of the air.

[0056] The refrigerant channel is provided with multiple electronic expansion valves, stop valves, check valves and other valves. By controlling the opening or closing of each valve, the compressor 1 is connected or disconnected with the external condenser 2, the battery cold plate 3, the evaporator 4, the internal condenser 5 and the first heat exchange channel of the heat exchanger 6, thereby achieving controllable connection.

[0057] On the other hand, the oil cooler of the motor 8 is controllably connected to the compressor through a refrigerant channel, and the oil cooler 80 is controllably connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 through a coolant channel, and the coolant channel is used for cooling water circulation.

[0058] Specifically, the cooling oil inside the motor 8 enters the oil cooler 80 of the motor 8 through the oil pump. The oil cooler 80 dissipates the waste heat of the motor 8 and dissipates the heat through the coolant channel and the refrigerant channel respectively and / or heats other components of the vehicle through the waste heat of the motor.

[0059] The oil cooler 80 of the motor 8 is connected to the oil refrigerant heat exchanger 92 and the oil-water heat exchanger 91 respectively. The oil refrigerant heat exchanger 92 is controllably connected to the compressor 1 through a refrigerant channel, and the oil-water heat exchanger 91 is controllably connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 through a coolant channel.

[0060] like Figure 2 As shown, the oil cooler 80 of the motor 8 is connected to the oil refrigerant heat exchanger 92 and the oil-water heat exchanger 91 respectively.

[0061] Specifically, the oil inlet and outlet of oil refrigerant heat exchanger 92 are connected to oil cooler 80. The refrigerant inlet and outlet of oil refrigerant heat exchanger 92 are controllably connected to compressor 1 via a refrigerant passage. A valve in the refrigerant passage controls the connection between oil refrigerant heat exchanger 92 and compressor 1. Cooling oil for motor 8 enters oil refrigerant heat exchanger 92 through the oil inlet and flows out through the oil outlet, returning to motor 8. Refrigerant in the refrigerant passage enters the refrigerant inlet of oil refrigerant heat exchanger 92 and flows out through the refrigerant outlet. As the refrigerant passes through oil refrigerant heat exchanger 92, the liquid refrigerant vaporizes and absorbs heat. As the oil in motor 8 passes through oil cooler 80 and enters oil refrigerant heat exchanger 92, heat is removed by the refrigerant, lowering the oil temperature. Heat exchange between the oil and refrigerant is then completed within oil refrigerant heat exchanger 92. Consequently, oil refrigerant heat exchanger 92 transfers waste heat from motor 8 to the refrigerant through heat exchange.

[0062] The oil inlet and outlet of the oil-water heat exchanger 91 are connected to the oil cooler 80 of the motor 8. The coolant inlet and outlet of the oil-water heat exchanger 91 are controllably connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 via a coolant channel. The coolant channel is equipped with a valve, such as a three-way valve, which is controlled by opening and closing the valve to achieve controllable communication between the oil-water heat exchanger 91, the second heat exchange channel of the heat exchanger 6, and the radiator 7. Oil from the motor 8 enters the oil-water heat exchanger 91 through the oil inlet and exits through the oil outlet, returning to the motor 8. Water in the coolant channel enters the water inlet of the oil-water heat exchanger 91 and exits through the water outlet. The oil and water exchange heat within the oil-water heat exchanger 91. Through heat exchange, the oil-water heat exchanger 91 transfers waste heat from the motor 8 to the cooling water. Heat is then dissipated through the coolant channel to the radiator 7. The heat is then transferred to the refrigerant channel through the heat exchanger 6 to heat other components.

[0063] The vehicle thermal management system of this invention uses a battery cold plate to directly cool and heat the battery using a refrigerant, while the evaporator cools the vehicle interior and the internal condenser heats it. Furthermore, the battery cold plate is connected to the motor water circuit and the outdoor environment, fully utilizing waste heat from the motor's electronic control unit and the surrounding environment. Furthermore, the motor's rotor heat generation eliminates the need for PTC, resulting in lower system costs and higher efficiency.

[0064] like Figure 1 FIG2 shows a vehicle thermal management system according to another embodiment of the present invention, comprising: a compressor 1, an external condenser 2, a battery cold plate 3, an evaporator 4, an internal condenser 5, a heat exchanger 6, a radiator 7, and a motor 8;

[0065] The compressor 1 is controllably connected to the external condenser 2, the battery cold plate 3, the evaporator 4, the internal condenser 5, and the first heat exchange channel of the heat exchanger 6 through a refrigerant channel, and the refrigerant channel is used for refrigerant circulation;

[0066] The oil cooler 80 of the motor 8 is connected to an oil refrigerant heat exchanger 92 and an oil-water heat exchanger 91 respectively. The oil refrigerant heat exchanger 92 is controllably connected to the compressor 1 via a refrigerant channel. The oil-water heat exchanger 91 is controllably connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 via a coolant channel. The coolant channel is used for cooling water circulation.

[0067] The oil-water heat exchanger 91 is controllably connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 in sequence;

[0068] The compressor 1 is controllably connected to the external condenser 2 and the oil refrigerant heat exchanger 92 in sequence;

[0069] The compressor 1 is controllably connected to the external condenser 2 and the evaporator 4 in sequence;

[0070] The compressor 1 is controllably connected to the internal condenser 5 and the heat exchanger 6 in sequence;

[0071] The compressor 1 is controllably connected to the external condenser 2 and the battery cold plate 3 in sequence;

[0072] The compressor 1 is controllably connected to the battery cold plate 3 and the first heat exchange channel of the heat exchanger 6 in sequence.

[0073] Specifically, the thermal management system of this embodiment includes a coolant channel and a refrigerant channel.

[0074] The coolant channel is a channel through which coolant circulates. Coolant, such as cooling water, circulates within the coolant channel. Specifically, during heating, the water in the coolant channel circulates, connecting the oil cooler 80 to the second heat exchange channel of the heat exchanger 6 and the radiator 7.

[0075] In some embodiments, it further includes a kettle 11, a water pump 12, an electronic control module 13 and a three-way valve 10. Figure 1 For simplicity, only the oil cooler 80 is shown. However, in reality, Figure 2As shown, the oil-water heat exchanger 91 exchanges heat with the oil cooler 80 and transfers heat through the coolant channel. The oil-water heat exchanger 91, connected to the oil cooler 80, is sequentially connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7. The oil-water heat exchanger 91 is sequentially connected to the heat exchanger 6, the three-way valve 10, the radiator 7, the kettle 11, the water pump 12, the electronic control module 13, and the oil-water heat exchanger 91 to form a coolant circuit. The coolant (cooling water) flows in the following direction: oil-water heat exchanger 91 -> heat exchanger 6 -> three-way valve 10 -> radiator 7 -> kettle 11 -> water pump 12 -> electronic control module 13 -> oil-water heat exchanger 91. The first end of the three-way valve 10 is connected to the second heat exchange channel of the heat exchanger 6, the second end is connected to the liquid inlet of the radiator 7, and the third end is connected to the liquid outlet of the radiator 7. The three-way valve 10 is in communication with the controller. When the controller connects the first and second ends of the three-way valve 10, the oil-water heat exchanger 91, heat exchanger 6, three-way valve 10, radiator 7, kettle 11, water pump 12, electronic control module 13, and oil-water heat exchanger 91 are connected to form a loop. Heat is dissipated through radiator 7, while the motor's waste heat is exchanged through heat exchanger 6. When the controller connects the first and third ends of the three-way valve 10, radiator 7 is disconnected, and the motor's waste heat is exchanged only through heat exchanger 6.

[0076] The radiator 7 is preferably a low-temperature radiator.

[0077] In some embodiments, the heat exchanger 6 is preferably a plate heat exchanger (chiller).

[0078] On the other hand, the refrigerant channel is controlled by multiple valves, including but not limited to: heat pump heating stop valve SOV1, external condenser front stop valve SOV2, internal condenser stop valve SOV3, battery cooling stop valve SOV4, battery heating stop valve S0V5, internal condenser outlet stop valve SOV6, evaporator inlet electronic expansion valve EXV1, battery cold plate inlet first electronic expansion valve EXV2, heat exchanger inlet electronic expansion valve EXV3, battery heating inlet electronic expansion valve EXV4, battery cooling outlet electronic expansion valve EXV5, battery cold plate inlet second electronic expansion valve EXV6, oil refrigerant heat exchanger inlet electronic expansion valve EXV7, cold plate cooling check valve CV1, evaporator rear check valve CV2, cold plate heating check valve CV3, motor cooling check valve CV4.

[0079] In some embodiments, the thermal management system further includes: a radiator fan assembly (MOTOR FAN) 14 , an air heater (APTC) 15 (also known as a high-pressure air PTC), and an air conditioning blower (BLOWER) 16 .

[0080] In some embodiments, the thermal management system further includes a plurality of sensors, such as Figure 1As shown, it specifically includes: radiator inlet temperature sensor T1, motor outlet water temperature sensor T2, battery cold plate inlet refrigerant temperature first sensor T3, battery cold plate outlet refrigerant temperature first sensor T4, compressor inlet refrigerant pressure sensor P1, external condenser outlet pressure and temperature sensor PT1, internal condenser outlet pressure and temperature sensor PT2, compressor outlet refrigerant exhaust temperature sensor T5, battery cold plate inlet refrigerant temperature second sensor T6, battery cold plate outlet refrigerant temperature second sensor T7.

[0081] In some embodiments, the heat exchanger 6 is preferably a plate heat exchanger.

[0082] like Figure 3 As shown, the refrigerant outlet of compressor 1 is controllably connected to external condenser 2, internal condenser 5, and the battery cold plate 3 during battery heating, serving as a high-pressure heat release terminal. External condenser 2 is controllably connected to evaporator 4, heat exchanger 6, battery cold plate 3 for battery cooling, and oil refrigerant heat exchanger 92 for motor cooling. Internal condenser 5 is controllably connected to heat exchanger 6 and external condenser 2, while battery cold plate 3 is controllably connected to heat exchanger 6 during battery heating.

[0083] The evaporator 4 , the heat exchanger 6 , the battery cold plate 3 during battery cooling, the oil refrigerant heat exchanger 92 , and the external condenser 2 are respectively connected to the refrigerant inlet end of the compressor 1 as low-pressure heat absorption ends.

[0084] The external condenser 2 exchanges heat with the air outside the vehicle, and the internal condenser 5 exchanges heat with the air inside the vehicle.

[0085] Specifically, if Figure 1 and Figure 2 As shown, the oil refrigerant heat exchanger 92 exchanges heat with the oil cooler 80 and transfers heat through the refrigerant channel. Therefore, the oil cooler 80 is connected to the oil refrigerant heat exchanger 92, and the oil refrigerant heat exchanger 92 is connected to the compressor 1 and the external condenser 2 in turn.

[0086] Specifically including multiple refrigerant connection circuits:

[0087] First refrigerant connection circuit: the outlet of compressor 1 is connected in sequence to the external condenser pre-stop valve SOV2, external condenser 2, oil refrigerant heat exchanger inlet electronic expansion valve EXV7, oil refrigerant heat exchanger 92, motor cooling check valve CV4, and the inlet of compressor 1 to form a circuit;

[0088] Second refrigerant connection circuit: the outlet of compressor 1 is connected to the external condenser front stop valve SOV2, external condenser 2, evaporator inlet electronic expansion valve EXV1, evaporator 4, evaporator rear check valve CV2, and the inlet of compressor 1 in sequence to form a circuit;

[0089] Third refrigerant connection loop: The outlet of compressor 1 is connected in sequence to the internal condenser stop valve SOV3, internal condenser 5, internal condenser outlet stop valve SOV6, heat exchanger inlet electronic expansion valve EXV3, heat exchanger 6, heat pump heating stop valve SOV1, and the inlet of compressor 1 to form a loop;

[0090] Fourth refrigerant connection circuit: The outlet of compressor 1 is connected in sequence to the external condenser front stop valve SOV2, external condenser 2, cold plate cooling check valve CV1, battery cooling stop valve SOV4, battery cold plate inlet first electronic expansion valve EXV2 and battery cold plate inlet second electronic expansion valve EXV6, battery cold plate 3, battery cooling outlet electronic expansion valve EXV5, and the inlet of compressor 1 to form a loop;

[0091] The fifth refrigerant flow direction is: the outlet of compressor 1 is connected in sequence to the battery heating inlet electronic expansion valve EXV4, the battery cold plate 3, the first electronic expansion valve EXV2 of the battery cold plate inlet and the second electronic expansion valve EXV6 of the battery cold plate inlet, the battery heating stop valve S0V5, the cold plate heating check valve CV3, the heat exchanger inlet electronic expansion valve EXV3, the heat exchanger 6, the heat pump heating stop valve SOV1, and the inlet of compressor 1 to form a loop.

[0092] The refrigerant channel is the channel through which the refrigerant flows. Figure 1 In the vehicle thermal management system shown, the flow directions of the refrigerant in the refrigerant channel include:

[0093] The first refrigerant flow direction is: compressor 1->external condenser front stop valve SOV2->external condenser 2->oil refrigerant heat exchanger inlet electronic expansion valve EXV7->oil refrigerant heat exchanger 92->motor cooling check valve CV4->compressor 1;

[0094] The second refrigerant flow direction is: compressor 1->external condenser front stop valve SOV2->external condenser 2->evaporator inlet electronic expansion valve EXV1->evaporator 4->evaporator rear check valve CV2->compressor 1;

[0095] The third refrigerant flow direction is: compressor 1 -> internal condenser stop valve SOV3 -> internal condenser 5 -> internal condenser outlet stop valve SOV6 -> heat exchanger inlet electronic expansion valve EXV3 -> heat exchanger 6 -> heat pump heating stop valve SOV1 -> compressor 1;

[0096] The fourth refrigerant flow direction is: compressor 1 -> external condenser front stop valve SOV2 -> external condenser 2 -> cold plate cooling check valve CV1 -> battery cooling stop valve S0V4 -> battery cold plate inlet first electronic expansion valve EXV2 and battery cold plate inlet second electronic expansion valve EXV6 -> battery cold plate 3 -> battery cooling outlet electronic expansion valve EXV5 -> compressor 1;

[0097] The fifth refrigerant flows in the following direction: compressor 1 -> battery heating inlet electronic expansion valve EXV4 -> battery cold plate 3 -> battery cold plate inlet first electronic expansion valve EXV2 and battery cold plate inlet second electronic expansion valve EXV6 -> battery heating stop valve S0V5 -> cold plate heating check valve CV3 -> heat exchanger inlet electronic expansion valve EXV3 -> heat exchanger 6 -> heat pump heating stop valve SOV1 -> compressor 1.

[0098] The thermal management system can operate in multiple operating modes. In different operating modes, different refrigerant channels and / or coolant channels are used to achieve multiple operating modes.

[0099] Select the following modes when there is a need for cooling or heating the vehicle interior, battery, or battery:

[0100] 1. In-vehicle cooling: direct cooling of evaporator refrigerant;

[0101] 2. In-car heating: The indoor condenser is directly heated by refrigerant, which can be either an air source heat pump or a water source heat pump;

[0102] 3. Battery cooling: direct cooling of battery cold plate refrigerant;

[0103] 4. Battery heating: direct heating of battery cold plate refrigerant;

[0104] 5. Motor low-load cooling: coolant cooling (motor → motor oil → coolant → radiator);

[0105] 6. Motor high-load cooling: refrigerant cooling (motor → motor oil → refrigerant → compressor);

[0106] This embodiment proposes a novel vehicle thermal management system using a refrigerant to directly cool and heat the battery. This system reduces PTC and enables full-temperature, all-mode thermal management. Compared to existing technologies, this system eliminates some water heat exchangers, water valves, and water pumps, resulting in fewer parts and lower costs. It also fully utilizes ambient heat and waste heat from the motor and electronic control, resulting in high efficiency.

[0107] This embodiment uses refrigerant direct cooling and heating for the battery, thereby improving the cooling and heating speed of the battery. At the same time, a direct heat pump is used to achieve higher heating efficiency and faster temperature rise in the vehicle. In addition, this embodiment uses a water source heat pump, and the motor waste heat and motor stall heating provide heat for the system, eliminating water PTC and air PTC, which is more cost-effective. The motor is cooled by both coolant liquid and refrigerant direct cooling. Liquid cooling saves energy when the motor is heated and under low load, while direct cooling is more efficient under high load, ensuring stable motor performance output. Finally, the battery heating and cooling and the vehicle heating and cooling are all connected in parallel. The cold plate cooling check valve CV1 and the cold plate heating check valve CV3 are used as one-way valves, and the battery cooling stop valve SOV4 and the battery heating stop valve SOV5 are used in combination to prevent refrigerant backflow, so that cooling and heating in all scenarios can be achieved.

[0108] like Figure 4 FIG. 1 is a flowchart of a control method for a vehicle thermal management system as described above according to an embodiment of the present invention, comprising:

[0109] Step S401, obtaining the working mode;

[0110] Step S402, according to the working mode, controls the compressor 1 to be connected to the external condenser 2, the battery cold plate 3, the evaporator 4, the internal condenser 5 and / or the first heat exchange channel of the heat exchanger 6, or controls the oil refrigerant heat exchanger 92 to be connected to the compressor 1, or controls the oil-water heat exchanger 91 to be connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7.

[0111] Specifically, the present invention can be applied to electronic devices with processing capabilities, such as a controller of a vehicle, such as an electronic control unit (ECU) of a vehicle.

[0112] First, execute step S401 to obtain the working mode.

[0113] Specifically, the corresponding working mode is determined according to the cooling and heating requirements of the vehicle interior, the battery, and the battery.

[0114] Among them, the working modes include but are not limited to: motor radiator heat dissipation mode, motor refrigerant cooling mode, in-vehicle cooling mode only, in-vehicle heating mode only, in-vehicle heating and dehumidification mode, battery cooling mode only, battery heating mode only, in-vehicle cooling and battery cooling mode, in-vehicle cooling and battery heating mode, in-vehicle heating and battery cooling mode, in-vehicle heating and battery heating mode.

[0115] Then, step S402 is executed to control the compressor 1 to be connected to the external condenser 2, the battery cold plate 3, the evaporator 4, the internal condenser 5 and / or the first heat exchange channel of the heat exchanger 6, or to control the oil cooler 80 to be connected to the compressor 1, or to control the oil cooler 80 to be connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7, according to the working mode.

[0116] In one embodiment, according to the working mode, controlling the compressor 1 to communicate with the external condenser 2, the battery cold plate 3, the evaporator 4, the internal condenser 5 and / or the first heat exchange channel of the heat exchanger 6, or controlling the oil refrigerant heat exchanger 92 to communicate with the compressor 1, or controlling the oil-water heat exchanger 91 to communicate with the second heat exchange channel of the heat exchanger 6 and the radiator 7 includes:

[0117] When the working mode is the motor heat dissipation mode using the radiator, the oil-water heat exchanger 91 is controlled to be connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 in sequence;

[0118] When the working mode is the motor refrigerant cooling mode, the compressor 1 is controlled to be connected to the external condenser 2 and the oil refrigerant heat exchanger 92 in sequence;

[0119] When the working mode is the in-vehicle cooling only mode, the compressor 1 is controlled to be connected to the external condenser 2 and the evaporator 4 in sequence;

[0120] When the working mode is the in-vehicle heating only mode, the compressor 1 is controlled to sequentially communicate with the internal condenser 5 and the first heat exchange channel of the heat exchanger 6, and the oil-water heat exchanger 91 is controlled to sequentially communicate with the second heat exchange channel of the heat exchanger 6 and the radiator 7;

[0121] When the working mode is the in-vehicle heating and dehumidification mode, the compressor 1 is controlled to communicate with the external condenser 2 and the evaporator 4 in sequence, the compressor 1 is controlled to communicate with the internal condenser 5 and the first heat exchange channel of the heat exchanger 6 in sequence, and the oil-water heat exchanger 91 is controlled to communicate with the second heat exchange channel of the heat exchanger 6 and the radiator 7 in sequence;

[0122] When the working mode is the battery cooling mode, the compressor 1 is controlled to be connected to the external condenser 2 and the battery cold plate 3 in sequence;

[0123] When the operating mode is the battery single heating mode, the compressor 1 is controlled to be connected to the battery cold plate 3 and the first heat exchange channel of the heat exchanger 6 in sequence, and the oil-water heat exchanger 91 is controlled to be connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 in sequence;

[0124] When the working mode is in-vehicle cooling and battery cooling mode, the compressor 1 is controlled to be connected to the external condenser 2 and the evaporator 4 in sequence, and the compressor 1 is controlled to be connected to the external condenser 2 and the battery cold plate 3 in sequence;

[0125] When the operating mode is vehicle interior cooling and battery heating mode, the compressor 1 is controlled to communicate with the external condenser 2 and the evaporator 4 in sequence, the compressor 1 is controlled to communicate with the battery cold plate 3 and the first heat exchange channel of the heat exchanger 6 in sequence, and the oil-water heat exchanger 91 is controlled to communicate with the second heat exchange channel of the heat exchanger 6 and the radiator 7 in sequence;

[0126] When the operating mode is vehicle interior heating and battery cooling mode, the compressor 1 is controlled to sequentially communicate with the internal condenser 5 and the first heat exchange channel of the heat exchanger 6, the compressor 1 is controlled to sequentially communicate with the external condenser 2 and the battery cold plate 3, and the oil-water heat exchanger 91 is controlled to sequentially communicate with the second heat exchange channel of the heat exchanger 6 and the radiator 7;

[0127] When the working mode is in-vehicle heating and battery heating mode, the compressor 1 is controlled to be connected to the battery cold plate 3 and the first heat exchange channel of the heat exchanger 6 in sequence, and the oil-water heat exchanger 91 is controlled to be connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 in sequence.

[0128] As an example, Table 1 shows the coolant flow direction of the coolant channel and the refrigerant flow direction of the refrigerant channel under different working modes.

[0129]

[0130] Among them, for Figure 1 In the thermal management system shown, when the working mode is the motor using a radiator heat dissipation mode, the controller controls the first end of the three-way valve 10 to be connected to the second end, and the oil-water heat exchanger 91 connected to the oil cooler 80 is connected to the second heat exchange channel of the heat exchanger 6 and the radiator 7 in sequence.

[0131] When the controller connects the first and second ends of three-way valve 10, the coolant flows through oil-water heat exchanger 91, heat exchanger 6, three-way valve 10, radiator 7, kettle 11, water pump 12, electronic control module 13, and oil-water heat exchanger 91. Motor waste heat enters the coolant channel through oil-water heat exchanger 91 and is dissipated by radiator 7. Simultaneously, the motor waste heat is exchanged with heat exchanger 6.

[0132] In motor refrigerant cooling mode, the external condenser pre-shutoff valve SOV2, the oil refrigerant heat exchanger inlet electronic expansion valve EXV7, and the motor cooling check valve CV4 are open. The primary refrigerant flows in the following direction: compressor 1 -> external condenser pre-shutoff valve SOV2 -> external condenser 2 -> oil refrigerant heat exchanger inlet electronic expansion valve EXV7 -> oil refrigerant heat exchanger 92 -> motor cooling check valve CV4 -> compressor 1. Compressor 1 is sequentially connected to external condenser 2 and oil refrigerant heat exchanger 92. Oil refrigerant heat exchanger 92 exchanges heat with oil cooler 80. Motor waste heat is transferred through oil refrigerant heat exchanger 92 to the refrigerant channel and then to external condenser 2 for dissipation.

[0133] In interior cooling mode, the external condenser's front stop valve SOV2, the evaporator's inlet electronic expansion valve EXV1, and the evaporator's rear check valve CV2 are open. The secondary refrigerant flows from compressor 1 to external condenser's front stop valve SOV2, external condenser 2, evaporator's inlet electronic expansion valve EXV1, evaporator 4, and evaporator's rear check valve CV2. Compressor 1 is sequentially connected to external condenser 2 and evaporator 4. Evaporator 4 absorbs heat to cool the interior of the vehicle, and this heat is then transferred through the refrigerant channel to external condenser 2 for dissipation.

[0134] In vehicle heating-only mode, the interior condenser shutoff valve SOV3, the interior condenser outlet shutoff valve SOV6, the heat exchanger inlet electronic expansion valve EXV3, and the heat pump heating shutoff valve SOV1 are open. The third refrigerant flows in the following direction: compressor 1 -> interior condenser shutoff valve SOV3 -> interior condenser 5 -> interior condenser outlet shutoff valve SOV6 -> heat exchanger inlet electronic expansion valve EXV3 -> heat exchanger 6 -> heat pump heating shutoff valve SOV1 -> compressor 1. Compressor 1 is sequentially connected to the interior condenser 5 and the first heat exchange channel of heat exchanger 6. Simultaneously, the controller connects the first and second ends of three-way valve 10, connecting the oil-water heat exchanger 91 connected to the oil cooler 80 to the second heat exchange channel of heat exchanger 6 and radiator 7. Heat exchanger 6 transfers waste heat from the motor to the interior condenser 5, where it is released to heat the vehicle interior.

[0135] In the vehicle heating and dehumidification mode, the external condenser front stop valve SOV2, the evaporator inlet electronic expansion valve EXV1, and the evaporator rear check valve CV2 are opened, and the compressor 1 is connected to the external condenser 2 and the evaporator 4 in sequence, and dehumidification is carried out through the second refrigerant flow direction.

[0136] Simultaneously, the internal condenser shutoff valve SOV3, the internal condenser outlet shutoff valve SOV6, the heat exchanger inlet electronic expansion valve EXV3, and the heat pump heating shutoff valve SOV1 are opened, connecting the compressor 1 sequentially with the internal condenser 5 and the first heat exchange channel of the heat exchanger 6. Simultaneously, the controller connects the first and second ends of the three-way valve 10, connecting the oil-water heat exchanger 91 connected to the oil cooler 80 sequentially with the second heat exchange channel of the heat exchanger 6 and the radiator 7. Through the flow direction of the third refrigerant, the heat exchanger 6 transfers the motor's waste heat to the internal condenser 5, releasing it into the vehicle interior.

[0137] Specifically, when the humidity in the car is high, dehumidification is required. The method is to let the air pass through the evaporator 4 with a lower temperature. The gaseous water in the air turns into liquid water when it cools and is then discharged. Dehumidification and heating means that the air is first dehumidified by the evaporator and then heated by the internal condenser. Finally, the air blown out by the air conditioner is dry hot air.

[0138] In battery cooling mode, the external condenser shutoff valve SOV2, cold plate cooling check valve CV1, battery cooling shutoff valve SOV4, battery cold plate inlet first electronic expansion valve EXV2, battery cold plate inlet second electronic expansion valve EXV6, and battery cooling outlet electronic expansion valve EXV5 are open. The fourth refrigerant flows from compressor 1 to external condenser shutoff valve SOV2, external condenser 2, cold plate cooling check valve CV1, battery cooling shutoff valve SOV4, battery cold plate inlet first electronic expansion valve EXV2 and battery cold plate inlet second electronic expansion valve EXV6, battery cold plate 3, battery cooling outlet electronic expansion valve EXV5, and compressor 1. Compressor 1 is sequentially connected to external condenser 2 and battery cold plate 3. Battery cold plate 3 transfers battery heat to external condenser 2 via the refrigerant channel for dissipation.

[0139] In battery heating mode, the battery heating inlet electronic expansion valve EXV4, the first battery cold plate inlet electronic expansion valve EXV2, the second battery cold plate inlet electronic expansion valve EXV6, the battery heating shutoff valve SOV5, the cold plate heating check valve CV3, the heat exchanger inlet electronic expansion valve EXV3, and the heat pump heating shutoff valve SOV1 are open. The fifth refrigerant flows from compressor 1 to battery heating inlet electronic expansion valve EXV4, the battery cold plate 3, the first battery cold plate inlet electronic expansion valve EXV2 and the second battery cold plate inlet electronic expansion valve EXV6, the battery heating shutoff valve S0V5, the cold plate heating check valve CV3, the heat exchanger inlet electronic expansion valve EXV3, the heat exchanger 6, the heat pump heating shutoff valve SOV1, and compressor 1. Compressor 1 is connected to the first heat exchange channel of the battery cold plate 3 and the heat exchanger 6 in sequence. At the same time, the controller connects the first and second ends of three-way valve 10. Oil-water heat exchanger 91, connected to oil cooler 80, connects sequentially to the second heat exchange channel of heat exchanger 6 and radiator 7. Heat exchanger 6 transfers waste heat from the motor via the refrigerant channel to battery cold plate 3, heating the batteries.

[0140] In the vehicle interior cooling and battery cooling mode, the external condenser front stop valve SOV2, the evaporator inlet electronic expansion valve EXV1, and the evaporator rear check valve CV2 are opened, and the compressor 1 is connected with the external condenser 2 and the evaporator 4 in sequence. The evaporator 4 absorbs heat through the second refrigerant flow direction to cool the vehicle interior, and the heat is transferred to the external condenser 2 through the refrigerant channel for dissipation.

[0141] At the same time, the external condenser front stop valve SOV2, the cold plate cooling check valve CV1, the battery cooling stop valve SOV4, the battery cold plate inlet first electronic expansion valve EXV2, the battery cold plate inlet second electronic expansion valve EXV6, and the battery cooling outlet electronic expansion valve EXV5 are opened, and the compressor 1 is connected with the external condenser 2 and the battery cold plate 3 in sequence. Through the fourth refrigerant flow direction, the battery cold plate 3 transfers the battery heat through the refrigerant channel to the external condenser 2 for heat dissipation.

[0142] In the vehicle interior cooling and battery heating mode, the external condenser front stop valve SOV2, the evaporator inlet electronic expansion valve EXV1, and the evaporator rear check valve CV2 are opened, and the compressor 1 is connected with the external condenser 2 and the evaporator 4 in sequence. The evaporator 4 absorbs heat through the second refrigerant flow direction to cool the vehicle interior, and the heat is transferred to the external condenser 2 through the refrigerant channel for dissipation.

[0143] Simultaneously, the electronic expansion valve EXV4 at the battery heating inlet, the first electronic expansion valve EXV2 at the battery cold plate inlet, the second electronic expansion valve EXV6 at the battery cold plate inlet, the battery heating shutoff valve SOV5, the cold plate heating check valve CV3, the electronic expansion valve EXV3 at the heat exchanger inlet, and the heat pump heating shutoff valve SOV1 are opened, connecting compressor 1 sequentially with the battery cold plate 3 and the first heat exchange channel of heat exchanger 6. Simultaneously, the controller connects the first and second ends of three-way valve 10, connecting oil-water heat exchanger 91 connected to oil cooler 80 sequentially with the second heat exchange channel of heat exchanger 6 and radiator 7. Through the fifth refrigerant flow direction, heat exchanger 6 transfers motor waste heat through the refrigerant channel to battery cold plate 3, heating the batteries.

[0144] In vehicle heating and battery cooling mode, the interior condenser shutoff valve SOV3, the interior condenser outlet shutoff valve SOV6, the heat exchanger inlet electronic expansion valve EXV3, and the heat pump heating shutoff valve SOV1 are open, connecting compressor 1 to the interior condenser 5 and the first heat exchange channel of heat exchanger 6. Simultaneously, the controller connects the first and second ends of three-way valve 10, connecting oil-water heat exchanger 91, connected to oil cooler 80, to the second heat exchange channel of heat exchanger 6 and radiator 7. Through the flow direction of the third refrigerant, heat exchanger 6 transfers waste heat from the motor to the interior condenser 5, where it is released to heat the vehicle interior.

[0145] At the same time, the external condenser front stop valve SOV2, the cold plate cooling check valve CV1, the battery cooling stop valve SOV4, the battery cold plate inlet first electronic expansion valve EXV2, the battery cold plate inlet second electronic expansion valve EXV6, and the battery cooling outlet electronic expansion valve EXV5 are opened, and the compressor 1 is connected with the external condenser 2 and the battery cold plate 3 in sequence. Through the fourth refrigerant flow direction, the battery cold plate 3 transfers the battery heat through the refrigerant channel to the external condenser 2 for heat dissipation.

[0146] In both vehicle interior heating and battery heating modes, the interior condenser shutoff valve SOV3, the interior condenser outlet shutoff valve SOV6, the heat exchanger inlet electronic expansion valve EXV3, and the heat pump heating shutoff valve SOV1 are open, connecting the compressor 1 to the interior condenser 5 and the first heat exchange channel of the heat exchanger 6. Simultaneously, the controller connects the first and second ends of the three-way valve 10, connecting the oil-water heat exchanger 91 connected to the oil cooler 80 to the second heat exchange channel of the heat exchanger 6 and the radiator 7. Heat exchanger 6 transfers waste heat from the motor to the interior condenser 5, where it dissipates to heat the vehicle interior. Through the flow direction of the third refrigerant, heat exchanger 6 transfers waste heat from the motor to the interior condenser 5, where it dissipates to heat the vehicle interior.

[0147] The electronic expansion valve EXV4 at the battery heating inlet, the first electronic expansion valve EXV2 at the battery cold plate inlet, the second electronic expansion valve EXV6 at the battery cold plate inlet, the battery heating stop valve SOV5, the cold plate heating check valve CV3, the electronic expansion valve EXV3 at the heat exchanger inlet, and the heat pump heating stop valve SOV1 are opened. The compressor 1 is connected to the battery cold plate 3 and the first heat exchange channel of the heat exchanger 6 in sequence. Through the fifth refrigerant flow direction, the heat exchanger 6 transfers the waste heat of the motor to the battery cold plate 3 through the refrigerant channel to heat the battery.

[0148] The present invention determines the corresponding working mode according to the cooling and heating requirements of the vehicle interior, the battery and the battery, and then controls the channel of the valve in the coolant channel or the refrigerant channel through the controller to realize the corresponding working mode to meet the vehicle cooling and heating needs in all scenarios.

[0149] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0150] like Figure 5 FIG. 1 is a schematic diagram of the hardware structure of an electronic device of the present invention, comprising:

[0151] at least one processor 501; and,

[0152] A memory 502 in communication with at least one of the processors 501; wherein,

[0153] The memory 502 stores instructions that can be executed by at least one processor. The instructions are executed by at least one processor to enable the at least one processor to perform the control method of the vehicle thermal management system as described above.

[0154] Figure 5 A processor 501 is taken as an example.

[0155] The electronic device may further include an input device 503 and a display device 504 .

[0156] The processor 501, the memory 502, the input device 503 and the display device 504 may be connected via a bus or other means, with the bus connection being used as an example in the figure.

[0157] The memory 502 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as program instructions / modules corresponding to the control method of the vehicle thermal management system in the embodiment of the present application, for example, Figure 4The processor 501 executes the non-volatile software programs, instructions and modules stored in the memory 502 to perform various functional applications and data processing, that is, to implement the control method of the vehicle thermal management system in the above embodiment.

[0158] Memory 502 may include a program storage area and a data storage area. The program storage area may store an operating system and application programs required for at least one function; the data storage area may store data generated based on the use of the vehicle thermal management system control method. Furthermore, memory 502 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some embodiments, memory 502 may optionally include memory remote from processor 501. Such remote memory may be connected to the device executing the vehicle thermal management system control method via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0159] The input device 503 can receive user clicks and generate signal inputs related to user settings and function control of the vehicle thermal management system control method. The display device 504 can include a display device such as a display screen.

[0160] The one or more modules are stored in the memory 502 and, when executed by the one or more processors 601 , execute the vehicle thermal management system control method in any of the above method embodiments.

[0161] The present invention determines the corresponding working mode according to the cooling and heating requirements of the vehicle interior, the battery and the battery, and then controls the channel of the valve in the coolant channel or the refrigerant channel through the controller to realize the corresponding working mode to meet the vehicle cooling and heating needs in all scenarios.

[0162] An embodiment of the present invention provides a storage medium storing computer instructions. When a computer executes the computer instructions, the storage medium is used to execute all steps of the control method of the vehicle thermal management system as described above.

[0163] In the context of the present disclosure, a storage medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. The storage medium may be a machine-readable signal medium or a machine-readable storage medium. Alternatively, the storage medium may be a non-transitory computer-readable storage medium, for example, a non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device.

[0164] An embodiment of the present invention provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the control method of the vehicle thermal management system as described above.

[0165] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A vehicle thermal management system, characterized in that: include: Compressor (1), external condenser (2), battery cold plate (3), evaporator (4), internal condenser (5), heat exchanger (6), radiator (7) and motor (8); The compressor (1) is controllably connected to the external condenser (2), the battery cold plate (3), the evaporator (4), the internal condenser (5), and the first heat exchange channel of the heat exchanger (6) through a refrigerant channel, and the refrigerant channel is used for refrigerant circulation; The oil cooler (80) of the motor (8) is connected to the oil refrigerant heat exchanger (92) and the oil-water heat exchanger (91) respectively. The oil refrigerant heat exchanger (92) is controllably connected to the compressor (1) through a refrigerant channel. The oil-water heat exchanger (91) is controllably connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7) through a coolant channel. The coolant channel is used for cooling water circulation.

2. The vehicle thermal management system according to claim 1, characterized in that: The oil-water heat exchanger (91) is controllably connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7) in sequence.

3. The vehicle thermal management system according to claim 1, characterized in that: The compressor (1) is controllably connected to the external condenser (2) and the oil refrigerant heat exchanger (92) in sequence.

4. The vehicle thermal management system according to claim 1, characterized in that: The compressor (1) is controllably connected to the external condenser (2) and the evaporator (4) in sequence.

5. The vehicle thermal management system according to claim 1, characterized in that: The compressor (1) is in controllable communication with the internal condenser (5) and the heat exchanger (6) in sequence.

6. The vehicle thermal management system according to claim 1, characterized in that: The compressor (1) is controllably connected to the external condenser (2) and the battery cold plate (3) in sequence.

7. The vehicle thermal management system according to claim 1, characterized in that: The compressor (1) is controllably connected to the battery cold plate (3) and the first heat exchange channel of the heat exchanger (6) in sequence.

8. A control method for a vehicle thermal management system according to any one of claims 1 to 7, characterized in that: include: Get the working mode; According to the working mode, the compressor (1) is controlled to be connected to the external condenser (2), the battery cold plate (3), the evaporator (4), the internal condenser (5) and / or the first heat exchange channel of the heat exchanger (6), or the oil refrigerant heat exchanger (92) is controlled to be connected to the compressor (1), or the oil-water heat exchanger (91) is controlled to be connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7).

9. The control method of a vehicle thermal management system according to claim 8, characterized in that: According to the working mode, the compressor (1) is controlled to communicate with the external condenser (2), the battery cold plate (3), the evaporator (4), the internal condenser (5) and / or the first heat exchange channel of the heat exchanger (6), or the oil refrigerant heat exchanger (92) is controlled to communicate with the compressor (1), or the oil-water heat exchanger (91) is controlled to communicate with the second heat exchange channel of the heat exchanger (6) and the radiator (7), including: When the working mode is a motor heat dissipation mode using a radiator, the oil-water heat exchanger (91) is controlled to sequentially communicate with the second heat exchange channel of the heat exchanger (6) and the radiator (7); When the working mode is the motor refrigerant cooling mode, the compressor (1) is controlled to be connected to the external condenser (2) and the oil refrigerant heat exchanger (92) in sequence; When the working mode is the in-vehicle cooling only mode, the compressor (1) is controlled to be connected to the external condenser (2) and the evaporator (4) in sequence; When the working mode is the in-vehicle heating-only mode, the compressor (1) is controlled to sequentially communicate with the internal condenser (5) and the first heat exchange channel of the heat exchanger (6), and the oil-water heat exchanger (91) is controlled to sequentially communicate with the second heat exchange channel of the heat exchanger (6) and the radiator (7); When the working mode is the in-vehicle heating and dehumidification mode, the compressor (1) is controlled to be connected to the external condenser (2) and the evaporator (4) in sequence, the compressor (1) is controlled to be connected to the internal condenser (5) and the first heat exchange channel of the heat exchanger (6) in sequence, and the oil-water heat exchanger (91) is controlled to be connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7) in sequence; When the operating mode is a battery-only cooling mode, the compressor (1) is controlled to sequentially communicate with the external condenser (2) and the battery cold plate (3); When the working mode is a battery single heating mode, the compressor (1) is controlled to be connected to the battery cold plate (3) and the first heat exchange channel of the heat exchanger (6) in sequence, and the oil-water heat exchanger (91) is controlled to be connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7) in sequence; When the working mode is in-vehicle cooling and battery cooling mode, the compressor (1) is controlled to be connected to the external condenser (2) and the evaporator (4) in sequence, and the compressor (1) is controlled to be connected to the external condenser (2) and the battery cold plate (3) in sequence; When the working mode is vehicle interior cooling and battery heating mode, the compressor (1) is controlled to be connected to the external condenser (2) and the evaporator (4) in sequence, the compressor (1) is controlled to be connected to the battery cold plate (3) and the first heat exchange channel of the heat exchanger (6) in sequence, and the oil-water heat exchanger (91) is controlled to be connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7) in sequence; When the working mode is the vehicle interior heating and battery cooling mode, the compressor (1) is controlled to be connected to the internal condenser (5) and the first heat exchange channel of the heat exchanger (6) in sequence, the compressor (1) is controlled to be connected to the external condenser (2) and the battery cold plate (3) in sequence, and the oil-water heat exchanger (91) is controlled to be connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7) in sequence; When the working mode is in-vehicle heating and battery heating mode, the compressor (1) is sequentially connected to the internal condenser (5) and the first heat exchange channel of the heat exchanger (6), and the compressor (1) is controlled to be sequentially connected to the battery cold plate (3) and the first heat exchange channel of the heat exchanger (6), and the oil-water heat exchanger (91) is controlled to be sequentially connected to the second heat exchange channel of the heat exchanger (6) and the radiator (7).

10. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to at least one of the processors; wherein, The memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor to enable at least one processor to execute the control method of the vehicle thermal management system according to any one of claims 8 to 9.

11. A storage medium, characterized in that: The storage medium stores computer instructions, and when a computer executes the computer instructions, it is used to execute all steps of the control method of the vehicle thermal management system according to any one of claims 8 to 9.

12. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the control method of the vehicle thermal management system according to any one of claims 8 to 9 is implemented.

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