Vehicle thermal management system, method, vehicle, program product, and storage medium

Abstract

A vehicle thermal management system, a method, a vehicle, a program product, and a storage medium. The vehicle thermal management system comprises: a refrigerant loop (1), having a heat pump device provided with a water-cooled condenser (11), a bypass auxiliary heating device, and an outdoor heat exchange device (3) disposed along piping, wherein the bypass auxiliary heating device and the outdoor heat exchange device (3) can be turned on alternatively or simultaneously to improve the heating efficiency of the heat pump device; an occupant compartment heating loop (2), provided with an air conditioning heater device (4), wherein the occupant compartment heating loop (2) is in communication with the water side of the water-cooled condenser (11); and a battery heating loop (5), wherein the battery heating loop (5) is connected to the occupant compartment heating loop (2) by means of a heat exchanger (52), and the battery heating loop (5) exchanges heat with the occupant compartment heating loop (2) by means of the heat exchanger (52), so as to heat a battery (7).

Description

Vehicle thermal management system, method, vehicle, program product and storage medium Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 2024108388733, filed on June 26, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of vehicles, and in particular to a vehicle thermal management system, method, vehicle, program product and storage medium. BACKGROUND

[0003] The key component of a new energy electric vehicle is a power battery. The performance and service life of the power battery largely determine the performance and service life of the whole vehicle, and the battery endurance is also an important indicator for evaluating the performance of the whole vehicle. The power battery must work in an appropriate temperature range to achieve the best performance. When the battery is charging, the temperature rises quickly and easily exceeds the optimal working temperature range, so the battery must be cooled by a refrigeration system.

[0004] In related technologies, the vehicle thermal management loop of an electric vehicle mostly sets up the thermal management of the driver's cabin and the thermal management of the fuel cell independently and manages them separately, and does not coordinate and unify the integrated thermal management, so that the overall thermal management energy consumption of the new energy electric vehicle is high, and part of the thermal energy cannot be reused. Therefore, a new solution is needed to solve the above problems. SUMMARY

[0005] In related technologies, the driver's cabin thermal management and fuel cell thermal management of the vehicle thermal management loop of an electric vehicle are independently set and have poor coordination, which leads to poor energy utilization and high overall thermal management energy consumption of the battery vehicle.

[0006] In a first aspect, the present disclosure provides a vehicle thermal management system, comprising: a refrigerant circuit, a heat pump device provided with a water-cooled condenser, a bypass heat auxiliary device and an outdoor heat exchange device are arranged on the pipeline of the refrigerant circuit, and the bypass heat auxiliary device and the outdoor heat exchange device can be opened alternatively or simultaneously to improve the heating efficiency of the heat pump device; a passenger compartment heating circuit in which circulating water is conveyed, the passenger compartment heating circuit is provided with an air conditioner heater device, and the passenger compartment heating circuit is in water-side communication with the water-cooled condenser; and a battery heating circuit, part of which is arranged in a battery, circulating water is conveyed in the battery heating circuit, and the battery heating circuit is connected with the passenger compartment heating circuit through a heat exchanger, and the battery heating circuit can exchange heat with the passenger compartment heating circuit through the heat exchanger to heat the battery.

[0007] In a second aspect, the present disclosure provides a vehicle comprising the vehicle thermal management system.

[0008] In a third aspect, the present disclosure provides a vehicle thermal management control method for the vehicle thermal management system, comprising:

[0009] collecting an outside temperature value, and controlling the vehicle thermal management system to perform a heating action according to the outside temperature value and a vehicle instruction.

[0010] In a fourth aspect, the present disclosure provides a computer program product comprising computer instructions stored in a computer readable storage medium and adapted to be read and executed by a processor to cause a computer device having the processor to perform the vehicle thermal management control method.

[0011] In a fifth aspect, the present disclosure provides a computer readable storage medium having stored thereon computer program instructions, which are loaded and executed by a processor to implement operations performed by the vehicle thermal management control method. BRIEF DESCRIPTION OF DRAWINGS

[0012] FIG. 1 is a schematic diagram of a vehicle thermal management system according to some embodiments of the present disclosure;

[0013] FIG. 2 is a schematic diagram of components used by the vehicle thermal management system in a first and third operating condition according to some embodiments of the present disclosure;

[0014] FIG. 3 is a schematic diagram of components used by the vehicle thermal management system in a second operating condition according to some embodiments of the present disclosure;

[0015] FIG. 4 is a schematic diagram of components used by the vehicle thermal management system in a fourth operating condition according to some embodiments of the present disclosure;

[0016] FIG. 5 is a schematic diagram of components used by the vehicle thermal management system in a fifth and sixth operating condition according to some embodiments of the present disclosure;

[0017] FIG. 6 is a schematic diagram of a vehicle according to some embodiments of the present disclosure;

[0018] FIG. 7 is a schematic flowchart of a vehicle thermal management control method for the vehicle thermal management system according to some embodiments of the present disclosure; and

[0019] FIG. 8 is a schematic flowchart of a computer readable storage medium according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0020] In order to enable personnel in the technical field to better understand the present disclosure, the technical solutions in the present disclosure will be clearly and completely described below in combination with the drawings in the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present disclosure.

[0021] In the related art, the driver cabin thermal management and fuel cell thermal management of the whole vehicle thermal management loop of the electric vehicle are independently set and have poor coordination, resulting in poor energy utilization and high overall thermal management energy consumption of the electric vehicle.

[0022] The present disclosure provides a vehicle thermal management system, as shown in FIG. 1, which can include a refrigerant circuit 1, a passenger cabin heating circuit 2, and a battery heating circuit 5. The refrigerant circuit 1 is provided with a heat pump device provided with a water-cooled condenser 11, a bypass heat auxiliary device, and an outdoor heat exchange device 3. The bypass heat auxiliary device and the outdoor heat exchange device 3 can be opened alternatively or simultaneously to improve the heating efficiency of the heat pump device. The passenger cabin heating circuit 2 is provided with circulating water, and is provided with an air conditioner heater device 4. The passenger cabin heating circuit 2 is in water communication with the water-cooled condenser 11. Part of the battery heating circuit 5 is arranged in the battery 7. The battery heating circuit 5 is provided with circulating water, and is connected to the passenger cabin heating circuit 2 through a heat exchanger 52. The battery heating circuit 5 can exchange heat with the passenger cabin heating circuit 2 through the heat exchanger 52 to heat the battery 7.

[0023] It should be noted that the lines between the devices in FIGS. 1-5 are pipe devices, in which the refrigerant circulates in the solid line pipe, and the circulating water for heat exchange circulates in the dashed line pipe.

[0024] It should be noted that the heat source of the vehicle thermal management system in the refrigerant circuit 1 in the present disclosure is provided with two heat auxiliary modes, i.e., the bypass heat auxiliary device and the outdoor heat exchange device 3. The two devices can be used simultaneously or individually to adapt to different working conditions.

[0025] In some embodiments, when the external temperature environment is in a micro-low temperature environment, the outdoor heat exchange device 3 can normally absorb heat in the air to heat the refrigerant flowing through the outdoor heat exchange device 3, so that the temperature of the refrigerant flowing to the water-cooled condenser 11 is increased and exchanges heat with the passenger cabin heating circuit 2, so as to realize the function of passenger cabin heating with less energy consumption. In the case that the temperature decreases to reduce the heat exchange efficiency of the outdoor heat exchange device 3, the bypass heat auxiliary device is needed to accelerate the heating efficiency of the refrigerant in the heat pump device.

[0026] In some embodiments, the refrigerant circuit 1 can include a compressor 12 and a gas-liquid separator 13.

[0027] In some embodiments, the output port of the compressor 12 is in communication with the input port of the water-cooled condenser 11 through a refrigerant pipeline; the output port of the gas-liquid separator 13 is in communication with the input port of the compressor 12 through a refrigerant pipeline, and the input port of the gas-liquid separator 13 is in communication with the output port of the water-cooled condenser 11.

[0028] It should be noted that the compressor 12 sucks in low-temperature and low-pressure refrigerant into the machine, rotates the rotor inside the compressor 12 driven by the motor, and discharges the high-temperature and high-pressure gas after compressing the refrigerant. During the pressurization process, the refrigerant releases heat, so that the high-temperature and high-pressure gas discharged by the compressor 12 has a higher temperature. Then, the high-temperature and high-pressure gas is sent into the gas side of the water-cooled condenser 11 for cooling, so that it is cooled and condensed into high-pressure liquid. The liquid high-pressure refrigerant is expanded by the expansion valve, becomes low-temperature and low-pressure refrigerant, and is sucked into the compressor 12, completing a complete refrigeration or heating cycle of the heat pump compressor. Therefore, an expansion valve is arranged on the pipeline connection between the water-cooled condenser 11 and the gas-liquid separator 13 in the refrigerant circuit 1. Further, the gas-liquid separator 13 can be used to prevent liquid refrigerant from impacting the compressor, and ensure the safe and normal operation of the compressor 12.

[0029] It should be noted that the outdoor heat exchange device 3 in the present disclosure absorbs external air heat, and has low energy consumption. However, it is affected by temperature, and has low working efficiency under extreme working conditions, and cannot meet the heat management demand. Therefore, it needs to cooperate with the bypass heat auxiliary device to complete the heat management of various working conditions.

[0030] In some embodiments, the pipeline of the refrigerant circuit 1 is provided with a switching valve at the pipeline branch, so as to switch the flow direction of the coolant, so that the heat source providing mode is switched between the two devices, or the two devices are opened at the same time.

[0031] In some embodiments, the bypass heat auxiliary device can include a first bypass heat auxiliary assembly. The first bypass heat auxiliary assembly includes a first bypass pipeline 61 and a first control valve 66.

[0032] In some embodiments, the input side of the first bypass pipeline 61 is in communication with the output port of the compressor 12, the output side of the first bypass pipeline 61 is provided with the first control valve 66, the first control valve 66 is in communication with the input port of the gas-liquid separator 13, and the first expansion valve 62 is arranged on the first bypass pipeline 61.

[0033] It can be understood that, as shown in FIG. 1, the working principle of bypassing the heat auxiliary device and the heat pump device in the above embodiment can include that the pipeline of the refrigerant circuit 1 provided with the compressor 12 and the gas-liquid separator 13 is arranged in parallel with the first bypass pipeline 61. That is, the high-temperature and high-pressure refrigerant out of the compressor 12 passes through the first bypass pipeline 61 to the first expansion valve 62 and then returns to the gas-liquid separator 13, and the other part enters the water-cooled condenser 11 to perform heat exchange.

[0034] It is worth noting that the first expansion valve 62 arranged in parallel can accelerate the efficiency of the liquid high-pressure refrigerant into low-temperature and low-pressure refrigerant, thereby improving the working efficiency of the compressor 12 and the heating efficiency of the heat pump device.

[0035] In some embodiments, the bypass heat auxiliary device can further include a second bypass heat auxiliary assembly. The second bypass heat auxiliary assembly includes a second bypass pipeline 63 and an air conditioner evaporator 64.

[0036] In some embodiments, the input side of the second bypass pipeline 63 can be in communication with the output port of the water-cooled condenser 11. The output side of the second bypass pipeline 63 is in communication with the input port of the gas-liquid separator 13. The air conditioner evaporator 64 is arranged on the second bypass pipeline 63, and the air conditioner evaporator 64 corresponds to the position of the air conditioner heater device 4. The second expansion valve 65 is arranged on the second bypass pipeline 63, and the second expansion valve 65 is in communication with the input side of the air conditioner evaporator 64.

[0037] It is worth noting that the second expansion valve 65 can be used to expand and expand the high-pressure refrigerant output by the water-cooled condenser 11 into low-temperature and low-pressure refrigerant. The air conditioner evaporator 64 can utilize the characteristics that the liquid low-temperature refrigerant is easy to evaporate at low pressure to convert into steam and absorb heat for heating the air conditioner heater device 4.

[0038] In some embodiments, the bypass heat auxiliary device can further include a third bypass heat auxiliary assembly including a third bypass pipeline 8 and a third expansion valve 81.

[0039] In some embodiments, the input side of the third bypass pipeline 8 can be in communication with the output port of the water-cooled condenser 11 through the second bypass pipeline 63. The output side of the third bypass pipeline 8 partially passes through the battery heating circuit 5 and is in communication with the input port of the gas-liquid separator 13. The third expansion valve 81 is arranged on the third bypass pipeline 8.

[0040] It can be understood that the working principle of the third bypass heat auxiliary assembly is similar to that of the first bypass heat auxiliary assembly, and both utilize the expansion valve to accelerate the working efficiency of the heat pump. Further, the third bypass pipeline 8 passes through the battery heating circuit 5, which can absorb the waste heat generated after the battery heating circuit 5 works.

[0041] In some embodiments, at least one pipe control valve is arranged on each of the first bypass pipe 61, the second bypass pipe 63 and the third bypass pipe 8 to shut off or open the pipes.

[0042] In some embodiments, a first control valve 66 is arranged at the input of the gas-liquid separator 13 of the heat pump device, and the first control valve 66 is in communication with the first bypass pipe 61, the second bypass pipe 63, the third bypass pipe 8 and the input of the gas-liquid separator 13, so that the above pipes can be shut off through the first control valve 66, and the first bypass heat auxiliary assembly, the second bypass heat auxiliary assembly and the third bypass heat auxiliary assembly can be opened and closed.

[0043] In some embodiments, the battery heating circuit 5 can include a battery heating pipe 51 provided with a first water pump 54 and arranged in the battery 7, a heat exchanger 52 arranged on the battery heating pipe 51 and provided with two pipes, one of which is in communication with the battery heating pipe 51 and the other of which is in communication with the passenger cabin heating circuit 2, and a battery cooler 53 arranged on the battery heating pipe 51 and provided with a second bypass pipe 63.

[0044] It can be understood that the battery cooler 53 is partially provided with the second bypass pipe 63, and the second bypass pipe 63 can absorb the waste heat of the battery cooler 53 to heat the passenger cabin, thereby saving energy consumption.

[0045] In some embodiments, the outdoor heat exchange device 3 can include an outdoor heat exchanger 31 and a fourth expansion valve 32.

[0046] In some embodiments, the outdoor heat exchanger 31 is arranged on the pipe of the refrigerant circuit 1 and the output of the outdoor heat exchanger 31 is in communication with or shut off from the input of the gas-liquid separator 13, and the fourth expansion valve 32 is arranged on the input of the outdoor heat exchanger 31.

[0047] It is worth noting that the outdoor heat exchanger 31 can absorb heat in the air to heat the refrigerant flowing therethrough.

[0048] In some embodiments, the pipe of the refrigerant circuit 1 is in communication with the input of the compressor 12 from the output of the compressor 12, sequentially passes through the water-cooled condenser 11, the fourth expansion valve 32, the outdoor heat exchanger 31 and the gas-liquid separator 13, and then is in communication with the input of the compressor 12.

[0049] In some embodiments, the front air conditioning inner heater 41 and the rear air conditioning inner heater 42 of the air conditioning heater device 4 are arranged in series on the pipe of the passenger cabin heating circuit 2.

[0050] In some embodiments, the second bypass thermal auxiliary assembly can also include two sets of second bypass pipes 63 and air conditioning evaporators 64, and the two sets of air conditioning evaporators 64 correspond to the front air conditioning internal heater 41 and the rear air conditioning internal heater 42, respectively.

[0051] In some embodiments, a first multi-way water valve 21 and a water pump can be provided in the passenger cabin heating loop 2 pipe, the first multi-way water valve 21 is used to deliver the circulating water after passing through the front air conditioning internal heater 41 and the rear air conditioning internal heater 42 back to the water side of the water-cooled condenser 11 to continue heating the circulation, or to deliver the circulating water after passing through the front air conditioning internal heater 41 and the rear air conditioning internal heater 42 to the heat exchanger 52, so that the circulating water exchanges heat with the battery heating loop 5.

[0052] In some embodiments, the battery heating pipe 51 can also be provided with a second multi-way water valve 55 and a first water pump 54, so that the cooling water in the battery heating pipe 51 and the passenger cabin heating loop 2 pipe forms a loop.

[0053] The present disclosure provides specific control methods for vehicle thermal management systems under various different working conditions, including six working conditions.

[0054] In the first working condition, when the outside temperature is above -10°C, the outdoor heat exchange device 3 and the heat pump device are used to provide heat to the passenger cabin. As shown in FIG. 2, in the refrigerant circuit: the compressor 12 outputs high-temperature and high-pressure refrigerant into the water-cooled condenser 11, the water-cooled condenser 11 releases the heat of the refrigerant, then passes through the fourth expansion valve 32 to be throttled, and then enters the outdoor heat exchanger 31, the outdoor heat exchanger 31 absorbs heat from the air, and then passes through the gas-liquid separator 13 to be separated and enters the compressor 12; the hot water after absorbing the heat on the refrigerant side of the water-cooled condenser 11 flows through the front air conditioning internal heater 41 and the rear air conditioning internal heater 42, and then passes through the first multi-way water valve 21 and returns to the water-cooled condenser 11 through the water pump; the cold air of the passenger cabin is heated after passing through the front and rear air conditioning box heaters, realizing the function of heating the passenger cabin.

[0055] In the second working condition, the outside temperature is between -30℃ and -10℃, and the heating scheme for the passenger cabin is as follows: a heat pump device with a bypass circuit is used to provide heat for the passenger cabin, as shown in FIG. 2. In the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the first bypass circuit 61 and returns to the gas-liquid separator 13 through the first expansion valve 62, and the other part enters the water-cooled condenser 11. After the heat of the refrigerant is released by the water-cooled condenser 11, the water passes through the three-way valve 91, then passes through the third bypass circuit 8 and the third expansion valve 81. After being adjusted by the third expansion valve 81, the water passes through the battery cooler 53, then separates in the gas-liquid separator 13 and enters the compressor. The hot water after absorbing the heat of the refrigerant side on the water side of the water-cooled condenser 11 passes through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42, then passes through the first multi-way water valve 21, and returns to the water-cooled condenser 11 through the water pump, thereby achieving the function of heating the passenger cabin.

[0056] In the third working condition, the outside temperature is between -30℃ and -10℃, and the heating scheme for the passenger cabin is as follows: a heat pump system with a bypass circuit is used to provide heat for the passenger cabin, as shown in FIG. 1. In the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the first bypass circuit 61 and returns to the gas-liquid separator 13, and the other part enters the water-cooled condenser 11. After the heat of the refrigerant is released by the water-cooled condenser 11, the water passes through the fourth expansion valve 32, then passes through the outdoor heat exchanger 31, then passes through the first control valve 66, then separates in the gas-liquid separator 13 and enters the compressor 12. The hot water after absorbing the heat of the refrigerant side on the water side of the water-cooled condenser 11 passes through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42, then passes through the first multi-way water valve 21, and returns to the water-cooled condenser 11 through the water pump, thereby achieving the function of heating the passenger cabin.

[0057] In the fourth working condition, the outside temperature is between -30℃ and 0℃, and the heating scheme for the battery is as follows: a heat pump system with a bypass circuit is used to provide heat for the battery, as shown in FIG. 4. In the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the bypass circuit and returns to the gas-liquid separator 13 through the first expansion valve 62, and the other part enters the water-cooled condenser 11. After the heat of the refrigerant is released by the water-cooled condenser 11, the water passes through the three-way valve 91, then passes through the second expansion valve 65, then passes through the air conditioner evaporator 64, and finally separates in the gas-liquid separator 13 and enters the compressor 12. The hot water after absorbing the heat of the refrigerant side on the water side of the water-cooled condenser 11 passes through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42 (the air conditioner fan is not turned on), then passes through the heat exchanger 52, then passes through the first multi-way water valve 21, and returns to the water-cooled condenser 11 through the water pump. In the battery circuit, the water pump sends the water in the battery circuit to the heat exchanger 52, the hot water on the air conditioner side of the heat exchanger 52 heats the water in the battery 7 circuit, then passes through the battery 7, then passes through the second multi-way water valve 55 to adjust the circuit, and then forms a circuit through the water pump.

[0058] In the fifth working condition, the outside temperature is -30°C to -0°C, and the battery heating scheme is to use a heat pump system with a bypass circuit to provide heat for the battery. As shown in FIG. 5, the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the bypass circuit, passes through the first expansion valve 62, enters the gas-liquid separator 13, and is separated into gas and liquid. Another path enters the water-cooled condenser 11, and the water-cooled condenser 11 releases heat to the outside. After the heat is released, the refrigerant passes through the fourth expansion valve 32, is adjusted, passes through the first control valve 66, and finally enters the compressor after being separated by the gas-liquid separator 13. The water side of the water-cooled condenser 11 absorbs heat from the refrigerant side, and the hot water flows through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42 (the air conditioner fan is not turned on), then passes through the heat exchanger 52, passes through the first multi-way water valve 21, and is returned to the water-cooled condenser 11 by the water pump. The battery circuit: the water pump sends water in the battery circuit to the heat exchanger 52, and the hot water on the air conditioner side of the heat exchanger 52 heats the water in the battery 7 circuit, which then passes through the battery 7, is adjusted by the second multi-way water valve 55, and forms a loop by the water pump.

[0059] In the sixth working condition, the outside temperature is -30°C to -0°C, and the scheme for simultaneously heating the passenger compartment and the battery is to use a heat pump system with a bypass circuit to provide heat for the battery and the passenger compartment. As shown in FIG. 5, the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the bypass circuit, enters the gas-liquid separator 13, and is separated into gas and liquid. Another path enters the water-cooled condenser 11, and the water-cooled condenser 11 releases heat to the outside. After the heat is released, the refrigerant passes through the fourth expansion valve 32, is adjusted, passes through the first control valve 66, and finally enters the compressor after being separated by the gas-liquid separator 13. The water side of the water-cooled condenser 11 absorbs heat from the refrigerant side, and the hot water flows through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42 to heat the passenger compartment, then passes through the heat exchanger 52, passes through the first multi-way water valve 21, and is returned to the water-cooled condenser 11 by the water pump. The battery circuit: the water pump sends water in the battery circuit to the heat exchanger 52, and the hot water on the air conditioner side of the heat exchanger 52 heats the water in the battery 7 circuit, which then passes through the battery 7, is adjusted by the second multi-way water valve 55, and forms a loop by the water pump.

[0060] In a second aspect, the present disclosure provides a vehicle 600, comprising: the vehicle thermal management system 100.

[0061] In some embodiments, the vehicle thermal management system 100 described above comprises: a refrigerant circuit 1, a passenger compartment heating circuit 2, and a battery heating circuit 5.

[0062] In some embodiments, the refrigerant circuit 1 is provided with a heat pump device provided with a water-cooled condenser 11, a bypass heat auxiliary device, and an outdoor heat exchange device 3. The bypass heat auxiliary device and the outdoor heat exchange device 3 can be opened alternatively or simultaneously to improve the heating efficiency of the heat pump device. The passenger cabin heating circuit 2 is provided with circulating water, and is provided with an air conditioner heater device 4. The passenger cabin heating circuit 2 is in water communication with the water-cooled condenser 11. The partial battery heating circuit 5 is arranged in the battery 7, and is provided with circulating water. The partial battery heating circuit 5 is connected to the passenger cabin heating circuit 2 through a heat exchanger 52, and the partial battery heating circuit 5 can exchange heat with the passenger cabin heating circuit 2 through the heat exchanger 52 to heat the battery 7.

[0063] It is worth noting that the heat source of the heat management system in the refrigerant circuit 1 in the present disclosure is provided with two heat auxiliary modes, i.e., a bypass heat auxiliary device and an outdoor heat exchange device 3. The two devices can be used simultaneously or individually to adapt to different working conditions.

[0064] In some embodiments, when the external temperature environment is in a micro-low temperature environment, the outdoor heat exchange device 3 can normally absorb heat in the air to heat the refrigerant flowing through the outdoor heat exchange device 3, so that the temperature of the refrigerant flowing to the water-cooled condenser 11 is increased and exchanges heat with the passenger cabin heating circuit 2, so as to realize the function of passenger cabin heating with less energy consumption. When the temperature is reduced, the heat exchange efficiency of the outdoor heat exchange device 3 is reduced, and the bypass heat auxiliary device is needed to accelerate the heating working efficiency of the heat pump device.

[0065] In some embodiments, the refrigerant circuit 1 comprises a compressor 12 and a gas-liquid separator 13.

[0066] In some embodiments, the output port of the compressor 12 is in communication with the input port of the water-cooled condenser 11 through a refrigerant pipeline. The output port of the gas-liquid separator 13 is in communication with the input port of the compressor 12 through a refrigerant pipeline, and the input port of the gas-liquid separator 13 is in communication with the output port of the water-cooled condenser 11.

[0067] It should be noted that the compressor 12 sucks in low-temperature and low-pressure refrigerant into the machine, rotates the rotor inside the compressor 12 through the motor, and discharges the refrigerant compressed into high-temperature and high-pressure gas. During the pressurization process, the refrigerant releases heat, so that the high-temperature and high-pressure gas discharged by the compressor 12 has a higher temperature. Then, the high-temperature and high-pressure gas is sent into the gas side of the water-cooled condenser 11 for cooling, so that it is cooled and condensed into high-pressure liquid. The liquid high-pressure refrigerant is expanded through the expansion valve, becomes low-temperature and low-pressure refrigerant, and is sucked into the compressor 12 again to complete a complete refrigeration or heating cycle of the heat pump compressor. Therefore, an expansion valve is arranged on the pipeline connected between the water-cooled condenser 11 and the gas-liquid separator 13 in the refrigerant circuit 1. The gas-liquid separator 13 is used to prevent liquid refrigerant from impacting the compressor and ensure the safe and normal operation of the compressor 12.

[0068] It should be noted that the outdoor heat exchange device 3 in the present disclosure absorbs external air heat and has low energy consumption. However, it is affected by temperature and has low working efficiency under extreme working conditions, which cannot meet the heat management demand. Therefore, it needs to be matched with the bypass heat auxiliary device to complete the heat management under various working conditions.

[0069] In some embodiments, the pipeline of the refrigerant circuit 1 is provided with a switching valve at each pipeline branch to switch the flow direction of the coolant, so that the heat source providing mode is switched between the two devices or both devices are opened at the same time.

[0070] In some embodiments, the bypass heat auxiliary device includes a first bypass heat auxiliary assembly, and the first bypass heat auxiliary assembly includes a first bypass pipeline 61 and a first control valve 66.

[0071] In some embodiments, the input side of the first bypass pipeline 61 is in communication with the output port of the compressor 12, the output side of the first bypass pipeline 61 is provided with the first control valve 66, the first control valve 66 is in communication with the input port of the gas-liquid separator 13, and the first expansion valve 62 is arranged on the first bypass pipeline 61.

[0072] It can be understood that, as shown in FIG. 1, the working principle of the bypass heat auxiliary device and the heat pump device in the above-mentioned embodiments can include that the pipeline of the refrigerant circuit 1 provided with the compressor 12 and the gas-liquid separator 13 is arranged in parallel with the first bypass pipeline 61. That is, the high-temperature and high-pressure refrigerant discharged from the compressor 12 passes through the first bypass pipeline 61, passes through the first expansion valve 62, enters the gas-liquid separator 13 for gas-liquid separation, and enters the water-cooled condenser 11 to perform heat exchange.

[0073] It should be noted that the first expansion valve 62 arranged in parallel can accelerate the efficiency of the liquid high-pressure refrigerant into low-temperature and low-pressure refrigerant, thereby improving the working efficiency of the compressor 12 and the heating efficiency of the heat pump device.

[0074] In some embodiments, the bypass heat-assisted device further comprises a second bypass heat-assisted component. The second bypass heat-assisted component comprises a second bypass pipeline 63 and an air-conditioning evaporator 64.

[0075] In some embodiments, the input side of the second bypass pipeline 63 is in communication with the output of the water-cooled condenser 11, and the output side of the second bypass pipeline 63 is in communication with the input of the gas-liquid separator 13. The air-conditioning evaporator 64 is arranged on the second bypass pipeline 63 and corresponds to the position of the air-conditioning heater device 4. The second expansion valve 65 is arranged on the second bypass pipeline 63 and is in communication with the input side of the air-conditioning evaporator 64.

[0076] It is worth noting that the second expansion valve 65 can be used to expand the high-pressure refrigerant output by the water-cooled condenser 11 into low-temperature and low-pressure refrigerant. The air-conditioning evaporator 64 can use the characteristic that liquid low-temperature refrigerant is easy to evaporate at low pressure to convert into vapor and absorb heat for heating the air-conditioning heater device 4.

[0077] In some embodiments, the bypass heat-assisted device further comprises a third bypass heat-assisted component comprising a third bypass pipeline 8 and a third expansion valve 81.

[0078] In some embodiments, the input side of the third bypass pipeline 8 is in communication with the output of the water-cooled condenser 11 through the second bypass pipeline 63, and the output side of the third bypass pipeline 8 partially passes through the battery heating loop 5 and is in communication with the input of the gas-liquid separator 13. The third expansion valve 81 is arranged on the third bypass pipeline 8.

[0079] It can be understood that the third bypass heat-assisted component works in a similar manner to the first bypass heat-assisted component, both of which use expansion valves to speed up the working efficiency of the heat pump.

[0080] In some embodiments, the third bypass pipeline 8 passes through the battery heating loop 5 and can absorb the waste heat generated after the battery heating loop 5 works.

[0081] In some embodiments, at least one pipeline control valve is arranged on each of the first bypass pipeline 61, the second bypass pipeline 63, and the third bypass pipeline 8 to shut off or conduct the pipeline.

[0082] In some embodiments, a first control valve 66 is arranged at the input of the gas-liquid separator 13 of the heat pump device, and the first control valve 66 is in communication with the first bypass pipeline 61, the second bypass pipeline 63, the third bypass pipeline 8, and the input of the gas-liquid separator 13. Therefore, the above-mentioned pipelines can be shut off through the first control valve 66, and the opening and closing of the above-mentioned first bypass heat-assisted component, second bypass heat-assisted component, and third bypass heat-assisted component can be realized.

[0083] In some embodiments, the battery heating loop 5 comprises a battery heating pipe 51, a first water pump 54 arranged on the battery heating pipe 51, the battery heating pipe 51 penetrating the battery 7, a heat exchanger 52 arranged on the battery heating pipe 51, the heat exchanger 52 comprising two pipes, one of which is in communication with the battery heating pipe 51, and the other of which is in communication with the passenger cabin heating loop 2, and a battery cooler 53 arranged on the battery heating pipe 51, and a second bypass pipe 63 penetrating the battery cooler 53.

[0084] It can be understood that the battery cooler 53 is partially penetrated by the second bypass pipe 63, and the second bypass pipe 63 can absorb the working waste heat of the battery cooler 53 to heat the passenger cabin, thereby saving energy consumption.

[0085] In some embodiments, the outdoor heat exchange device 3 comprises an outdoor heat exchanger 31 and a fourth expansion valve 32.

[0086] In some embodiments, the outdoor heat exchanger 31 is arranged on the pipe of the refrigerant circuit 1, and the output port of the outdoor heat exchanger 31 is in communication with or cut off from the input port of the gas-liquid separator 13. The fourth expansion valve 32 is arranged on the input port of the outdoor heat exchanger 31.

[0087] It is worth noting that the outdoor heat exchanger 31 can absorb heat in the air to heat the refrigerant flowing therethrough.

[0088] In some embodiments, the pipe of the refrigerant circuit 1 sequentially passes through the water-cooled condenser 11, the fourth expansion valve 32, the outdoor heat exchanger 31, and the gas-liquid separator 13 from the output port of the compressor 12, and is in communication with the input port of the compressor 12.

[0089] In some embodiments, the passenger cabin heating loop 2 is provided with the front air conditioning internal heater 41 and the rear air conditioning internal heater 42 of the air conditioning heater device 4 in series.

[0090] In some embodiments, the second bypass heat auxiliary assembly also comprises two sets of second bypass pipes 63 and air conditioning evaporators 64, and the two sets of air conditioning evaporators 64 correspond to the front air conditioning internal heater 41 and the rear air conditioning internal heater 42, respectively.

[0091] In some embodiments, the passenger cabin heating loop 2 is provided with a first multi-way water valve 21 and a water pump, the first multi-way water valve 21 is used to deliver the circulating water after passing through the front air conditioning internal heater 41 and the rear air conditioning internal heater 42 back to the water side of the water-cooled condenser 11 to continue heating the circulation, or deliver the circulating water after passing through the front air conditioning internal heater 41 and the rear air conditioning internal heater 42 to the heat exchanger 52 to exchange heat with the battery heating loop 5.

[0092] In some embodiments, the battery heating circuit 51 is also provided with a second multi-way water valve 55 and a first water pump 54, so that the battery heating circuit 51 and the cooling water in the passenger cabin heating loop 2 form a loop.

[0093] In a third aspect, the present disclosure provides a vehicle thermal management control method for the vehicle thermal management system described above, comprising: S610, collecting an external temperature value, and controlling the vehicle thermal management system to perform a heating action according to the external temperature parameter and a vehicle instruction.

[0094] In some embodiments, when the external temperature value is above -10°C, and the vehicle issues a passenger cabin heating instruction, the outdoor heat exchange device 3 and the heat pump device are turned on to heat the refrigerant in the refrigerant circuit 1, while the circulating water in the passenger cabin heating loop 2 is kept circulating to warm up the air conditioner heater device 4.

[0095] In some embodiments, when the external temperature value is in the range of -30°C to -10°C, and the vehicle issues a passenger cabin heating instruction, the bypass heat auxiliary device and the heat pump device are turned on to heat the refrigerant in the refrigerant circuit 1, while the circulating water in the passenger cabin heating loop 2 is kept circulating to warm up the air conditioner heater device 4.

[0096] In some embodiments, when the external temperature value is in the range of -30°C to 0°C, and the vehicle issues a passenger cabin and battery 7 heating instruction, the bypass heat auxiliary device and the heat pump device are turned on to heat the refrigerant in the refrigerant circuit 1, while the circulating water in the passenger cabin heating loop 2 and the battery heating circuit 5 is kept circulating to raise the temperature of the air conditioner heater device 4 and the battery 7.

[0097] In some embodiments, the present disclosure provides a specific implementation in combination with the above vehicle thermal management control method for various temperature conditions and instructions, which comprises:

[0098] In the first working condition, when the external temperature is above -10°C, the outdoor heat exchange device 3 and the heat pump device are used to provide heat to the passenger cabin. As shown in FIG. 2, in the refrigerant circuit: the compressor 12 outputs high-temperature and high-pressure refrigerant into the water-cooled condenser 11, the water-cooled condenser 11 releases heat to the outside, then passes through the fourth expansion valve 32 to be throttled into the outdoor heat exchanger 31, the outdoor heat exchanger 31 absorbs heat from the air, then passes through the gas-liquid separator 13 to enter the compressor; the hot water on the water side of the water-cooled condenser 11 after absorbing the heat on the refrigerant side flows through the front air conditioner inner heater 41 and the rear air conditioner inner heater 42, then passes through the first multi-way water valve 21 and returns to the water-cooled condenser 11 through the water pump; the cold air of the passenger cabin is heated after passing through the front and rear air conditioner inner heaters, realizing the function of passenger cabin heating.

[0099] In the second working condition, the outside temperature is between -30℃ and -10℃, and the heating scheme for the passenger cabin is as follows: a heat pump device with a bypass circuit is used to provide heat for the passenger cabin, as shown in FIG. 2. In the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the first bypass circuit 61 and returns to the gas-liquid separator 13 through the first expansion valve 62, and the other part enters the water-cooled condenser 11. After the heat of the refrigerant is released by the water-cooled condenser 11, the hot water passes through the three-way valve 91, then passes through the third bypass circuit 8 and the third expansion valve 81. After being adjusted by the third expansion valve 81, the hot water passes through the battery cooler 53, then separates in the gas-liquid separator 13 and enters the compressor. The hot water on the water side of the water-cooled condenser 11 absorbs the heat on the refrigerant side, then flows through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42, then passes through the first multi-way water valve 21, and returns to the water-cooled condenser 11 through the water pump, thereby achieving the function of heating the passenger cabin.

[0100] In the third working condition, the outside temperature is between -30℃ and -10℃, and the heating scheme for the passenger cabin is as follows: a heat pump system with a bypass circuit is used to provide heat for the passenger cabin, as shown in FIG. 1. In the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the first bypass circuit 61 and returns to the gas-liquid separator 13, and the other part enters the water-cooled condenser 11. After the heat of the refrigerant is released by the water-cooled condenser 11, the hot water passes through the fourth expansion valve 32, then passes through the outdoor heat exchanger 31, then passes through the first control valve 66, then separates in the gas-liquid separator 13 and enters the compressor 12. The hot water on the water side of the water-cooled condenser 11 absorbs the heat on the refrigerant side, then flows through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42, then passes through the first multi-way water valve 21, and returns to the water-cooled condenser 11 through the water pump, thereby achieving the function of heating the passenger cabin.

[0101] In the fourth working condition, the outside temperature is between -30℃ and 0℃, and the heating scheme for the battery is as follows: a heat pump system with a bypass circuit is used to provide heat for the battery. As shown in FIG. 4, in the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the bypass circuit and returns to the gas-liquid separator 13 through the first expansion valve 62, and the other part enters the water-cooled condenser 11. After the heat of the refrigerant is released by the water-cooled condenser 11, the hot water passes through the three-way valve 91, then passes through the second expansion valve 65, then passes through the air conditioner evaporator 64, and finally separates in the gas-liquid separator 13 and enters the compressor 12. The hot water on the water side of the water-cooled condenser 11 absorbs the heat on the refrigerant side, then flows through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42 (the air conditioner fan is not turned on), then passes through the heat exchanger 52, then passes through the first multi-way water valve 21, and returns to the water-cooled condenser 11 through the water pump. In the battery circuit, the water pump sends the water in the battery circuit to the heat exchanger 52, the hot water on the air conditioner side of the heat exchanger 52 heats the water in the battery 7 circuit, then passes through the battery 7, then passes through the second multi-way water valve 55 to adjust the circuit, and then returns to the circuit through the water pump.

[0102] In the fifth working condition, the battery heating scheme uses a heat pump system with a bypass circuit to provide heat for the battery when the outside temperature is -30℃ to -0℃. As shown in FIG. 5, the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the bypass circuit, passes through the first expansion valve 62, enters the gas-liquid separator 13, and is separated into gas and liquid. The other path enters the water-cooled condenser 11. The water-cooled condenser 11 releases the heat of the refrigerant and then passes through the fourth expansion valve 32. After being adjusted by the fourth expansion valve 32, the refrigerant passes through the first control valve 66. Finally, the refrigerant is separated by the gas-liquid separator 13 and then enters the compressor. The hot water on the water side of the water-cooled condenser 11 absorbs the heat on the refrigerant side, flows through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42 (the air conditioner fan is not turned on), and then passes through the heat exchanger 52. After passing through the first multi-way water valve 21, the water is pumped back to the water-cooled condenser 11. The battery circuit: the water pump sends the water in the battery circuit to the heat exchanger 52. The hot water on the air conditioner side of the heat exchanger 52 heats the water in the battery 7 circuit, and then the water passes through the battery 7, is adjusted by the second multi-way water valve 55, and then forms a circuit by the water pump.

[0103] In the sixth working condition, the battery and the passenger compartment are heated simultaneously when the outside temperature is -30℃ to -0℃. The heat pump system with a bypass circuit is used to provide heat for the battery and the passenger compartment. As shown in FIG. 5, the refrigerant circuit: the high-temperature and high-pressure refrigerant output by the compressor 12 passes through the bypass circuit, passes through the first expansion valve 62, enters the gas-liquid separator 13, and is separated into gas and liquid. The other path enters the water-cooled condenser 11. The water-cooled condenser 11 releases the heat of the refrigerant and then passes through the fourth expansion valve 32. After being adjusted by the fourth expansion valve 32, the refrigerant passes through the first control valve 66. Finally, the refrigerant is separated by the gas-liquid separator 13 and then enters the compressor. The hot water on the water side of the water-cooled condenser 11 absorbs the heat on the refrigerant side, flows through the front air conditioner internal heater 41 and the rear air conditioner internal heater 42 to heat the passenger compartment, and then passes through the heat exchanger 52. After passing through the first multi-way water valve 21, the water is pumped back to the water-cooled condenser 11. The battery circuit: the water pump sends the water in the battery circuit to the heat exchanger 52. The hot water on the air conditioner side of the heat exchanger 52 heats the water in the battery 7 circuit, and then the water passes through the battery 7, is adjusted by the second multi-way water valve 55, and then forms a circuit by the water pump.

[0104] In summary, the heat management system of the present disclosure can meet the heating requirements of the passenger compartment and the battery by using different working modes under different environmental temperatures, can cancel the PTC, can reduce energy consumption and cost, and can improve the cruising range.

[0105] In a fourth aspect, the present disclosure provides a computer program product, which comprises computer instructions stored in a computer readable storage medium and adapted to be read and executed by a processor to enable a computer device having the processor to perform the vehicle heat management control method described above.

[0106] In a fifth aspect, the present disclosure provides a computer-readable storage medium 800 having stored thereon computer program instructions 810, which are loaded and executed by a processor to implement operations performed by the vehicle thermal management control method as described above.

[0107] In the description of the present disclosure, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. Unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0108] It should be noted that in the present disclosure, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0109] The above description is only a specific embodiment of the present disclosure, which enables those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present disclosure.

Claims

1. A vehicle thermal management system, comprising: The refrigerant circuit (1) is equipped with a heat pump device with a water-cooled condenser (11), a bypass heat auxiliary device and an outdoor heat exchange device (3) on its pipeline. The bypass heat auxiliary device and the outdoor heat exchange device (3) can be turned on one or simultaneously to improve the heating efficiency of the heat pump device. The crew cabin heating circuit (2) contains circulating water and is equipped with an air conditioning heater (4). The crew cabin heating circuit (2) is connected to the water-cooled condenser (11) on the water side. A battery heating circuit (5) is partially installed in the battery (7). The battery heating circuit (5) carries circulating water and is connected to the crew compartment heating circuit (2) through a heat exchanger (52). The battery heating circuit (5) can exchange heat with the crew compartment heating circuit (2) through the heat exchanger (52) to heat the battery (7).

2. The vehicle thermal management system as described in claim 1, wherein, The heat pump equipment includes: The compressor (12) has its output port connected to the input port of the water-cooled condenser (11) through the pipeline of the refrigerant circuit (1); The gas-liquid separator (13) has its output port connected to the input port of the compressor (12) through the refrigerant circuit (1) pipeline, and the input port of the gas-liquid separator (13) is connected to the output port of the water-cooled condenser (11).

3. The vehicle thermal management system as described in claim 2, wherein, The bypass thermal auxiliary equipment includes: The first bypass pipeline (61) has its input side connected to the output port of the compressor (12), and the output side of the first bypass pipeline (61) is provided with a first control valve (66), which is connected to the input port of the gas-liquid separator (13). A first expansion valve (62) is provided on the first bypass line (61).

4. The vehicle thermal management system as described in claim 3, wherein, The bypass thermal auxiliary equipment also includes: The second bypass pipe (63) has its input side connected to the output port of the water-cooled condenser (11), and its output side is connected to the input port of the gas-liquid separator (13). An air conditioning evaporator (64) is provided on the second bypass pipe (63), and the air conditioning evaporator (64) corresponds to the position of the air conditioning heater device (4); The second expansion valve (65) is located on the second bypass pipe (63) and is connected to the input side of the air conditioner evaporator (64).

5. The vehicle thermal management system as described in claim 4, wherein, The bypass thermal auxiliary equipment also includes: The third bypass pipe (8) has its input side connected to the output port of the water-cooled condenser (11) through the second bypass pipe (63). The output side of the third bypass pipe (8) passes through the battery heating circuit (5) and is connected to the input port of the gas-liquid separator (13). The third expansion valve (81) is located on the third bypass line (8).

6. The vehicle thermal management system as described in claim 5, wherein, The battery heating circuit (5) includes: A battery heating pipe (51) is provided with a first water pump (54), and the battery heating pipe (51) passes through the battery (7). The battery heating pipe (51) is provided with a heat exchanger (52), and the heat exchanger (52) is provided with two pipes, one of which is connected to the battery heating pipe (51) and the other is connected to the crew cabin heating circuit (2). A battery cooler (53) is provided on the battery heating pipe (51), and a second bypass pipe (63) passes through the battery cooler (53).

7. The vehicle thermal management system as described in claim 2, wherein, The outdoor heat exchange equipment (3) includes an outdoor heat exchanger (31), which is located on the refrigerant circuit (1) pipeline, and the outlet of the outdoor heat exchanger (31) can be connected to or disconnected from the inlet of the gas-liquid separator (13).

8. The vehicle thermal management system as described in claim 7, wherein, The outdoor heat exchange device (3) further includes a fourth expansion valve (32), which is located at the inlet of the outdoor heat exchanger (31).

9. The vehicle thermal management system as described in claim 1, wherein, The front air conditioning heater (41) and the rear air conditioning heater (42) of the air conditioning heater device (4) are connected in series on the crew cabin heating circuit (2) pipeline.

10. A vehicle comprising a vehicle thermal management system as claimed in any one of claims 1 to 9.

11. A vehicle thermal management control method, used in a vehicle thermal management system as described in any one of claims 1 to 9, the method comprising: Collect outside temperature values ​​and, based on the outside temperature parameters and vehicle commands, control the vehicle thermal management system to perform heating actions.

12. The vehicle thermal management control method as described in claim 11, wherein collecting the external temperature value and controlling the vehicle thermal management system to perform heating actions according to the external temperature parameter and vehicle instructions includes: When the outside temperature is above -10℃, outdoor heat exchange equipment (3) and heat pump equipment are used to provide heat to the crew cabin.

13. The vehicle thermal management control method as described in claim 11, wherein collecting the ambient temperature value and controlling the vehicle thermal management system to perform heating actions according to the ambient temperature parameter and vehicle instructions includes: When the outside temperature is above -10℃ and the vehicle issues a passenger compartment heating command, the outdoor heat exchange equipment (3) and heat pump equipment are turned on to heat the refrigerant in the refrigerant circuit (1) pipe, while maintaining the circulating water in the passenger compartment heating circuit (2) pipe to raise the temperature of the air conditioning heater equipment (4).

14. The vehicle thermal management control method as described in claim 11, wherein collecting the ambient temperature value and controlling the vehicle thermal management system to perform heating actions according to the ambient temperature parameter and vehicle instructions includes: When the outside temperature is between -30°C and -10°C, a heat pump with a bypass circuit is used to provide heat to the crew cabin.

15. The vehicle thermal management control method as described in claim 11, wherein collecting the ambient temperature value and controlling the vehicle thermal management system to perform heating actions according to the ambient temperature parameter and vehicle instructions includes: When the outside temperature is between -30℃ and -10℃ and the vehicle issues a heating command for the passenger compartment, the bypass auxiliary heating equipment and heat pump equipment are turned on to heat the refrigerant in the refrigerant circuit (1) pipe, while maintaining the circulation of the circulating water in the passenger compartment heating circuit (2) pipe so that the air conditioning heater equipment (4) can be heated.

16. The vehicle thermal management control method as described in claim 11, wherein collecting the ambient temperature value and controlling the vehicle thermal management system to perform heating actions according to the ambient temperature parameter and vehicle instructions includes: When the outside temperature is between -30°C and 0°C, the battery heating solution is to use a heat pump system with a bypass circuit to provide heat to the battery (7).

17. The vehicle thermal management control method as described in claim 11, wherein collecting the ambient temperature value and controlling the vehicle thermal management system to perform heating actions according to the ambient temperature parameter and vehicle instructions includes: When the outside temperature is between -30°C and 0°C, the simultaneous heating scheme for the crew compartment and the battery (7) is to use a heat pump system with a bypass circuit to provide heat to the battery (7) and the crew compartment.

18. The vehicle thermal management control method as described in claim 11, wherein collecting the ambient temperature value and controlling the vehicle thermal management system to perform heating actions according to the ambient temperature parameter and vehicle instructions includes: When the outside temperature is between -30°C and 0°C, and the vehicle issues a heating command to the passenger compartment and battery (7), the bypass auxiliary heating equipment and heat pump equipment are turned on to heat the refrigerant in the refrigerant circuit (1) pipeline, while maintaining the circulating water in the passenger compartment heating circuit (2) pipeline and the battery heating circuit (5) to make the temperature of the air conditioning heater equipment (4) and battery (7) rise.

19. A computer program product comprising computer instructions stored in a computer-readable storage medium and adapted to be read and executed by a processor to cause a computer device having said processor to perform the vehicle thermal management control method as claimed in any one of claims 11 to 18.

20. A computer-readable storage medium comprising stored computer program instructions, the computer program instructions being loaded by a processor and executed to perform the operations performed by the vehicle thermal management control method as described in any one of claims 11 to 18.

Images