Thermal management system of intelligent driving and automatic driving vehicle and vehicle

Abstract

The utility model discloses a thermal management system of an intelligent driving and automatic driving vehicle and the vehicle, and relates to the technical field of vehicle thermal management, and the thermal management system of the intelligent driving and automatic driving vehicle specifically comprises an air conditioner thermal management unit, a battery thermal management unit and a controller thermal management unit; the air conditioner heat management unit and the battery heat management unit share the same first heat exchange piece, and the battery heat management unit and the controller heat management unit share the same second heat exchange piece. The air conditioner heat management unit, the battery heat management unit and the controller heat management unit are mutually coupled through the first heat exchange part and the second heat exchange part so as to improve the energy distribution efficiency of the heat management system, and the heat management system can effectively improve the energy distribution efficiency of the heat management system.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automobile thermal management, in particular to a thermal management system of an intelligent driving and automatic driving vehicle and the vehicle. BACKGROUND

[0002] The existing intelligent driving and automatic driving controller usually needs to meet a relatively strict temperature range and other environmental conditions during operation to ensure its normal work and stable performance.

[0003] But the thermal management of the intelligent driving and automatic driving controller is relatively independent, only meeting the needs of the related controller, unable to be coupled with other thermal management systems of the vehicle, and thus unable to efficiently distribute energy according to the working ranges of the battery, air conditioner and other components. For example, when the battery or air conditioner system of the vehicle needs more energy, the independent controller thermal management system may not be able to provide sufficient cooling or heating, which will greatly affect the overall energy utilization efficiency and performance of the vehicle. UTILITY MODEL CONTENT

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a thermal management system of an intelligent driving and automatic driving vehicle and the vehicle.

[0005] In a first aspect, the present application provides a thermal management system of an intelligent driving and automatic driving vehicle, comprising:

[0006] an air conditioner thermal management unit, a battery thermal management unit and a controller thermal management unit;

[0007] The air conditioner thermal management unit and the battery thermal management unit share a same first heat exchange member, and the battery thermal management unit and the controller thermal management unit share a same second heat exchange member;

[0008] The first heat exchange member has a first heat exchange channel and a second heat exchange channel, and the first heat exchange channel and the second heat exchange channel are respectively connected to the air conditioner thermal management unit and the battery thermal management unit;

[0009] The second heat exchange member has a third heat exchange channel and a fourth heat exchange channel, and the third heat exchange channel and the fourth heat exchange channel are respectively connected to the battery thermal management unit and the controller thermal management unit;

[0010] The air conditioner thermal management unit, the battery thermal management unit and the controller thermal management unit are coupled with each other through the first heat exchange member and the second heat exchange member to improve the energy distribution efficiency of the thermal management system.

[0011] According to the technical scheme provided by the present application, the air conditioner thermal management unit comprises an air conditioner refrigeration circuit.

[0012] The air conditioner refrigeration circuit comprises a compressor, an indoor heat exchange device, an outdoor heat exchange device and the first heat exchange device connected in sequence to form a circulating flow path.

[0013] The output end of the compressor is connected with the indoor heat exchange device, and the input end thereof is connected with the output end of the first heat exchange channel; the input end of the first heat exchange channel is connected with the output end of the outdoor heat exchange device.

[0014] According to the technical scheme provided in the application, the air conditioner refrigeration circuit further comprises:

[0015] A first electromagnetic valve is arranged on a first connecting pipeline between the indoor heat exchange device and the outdoor heat exchange device.

[0016] A one-way valve is arranged on a second connecting pipeline between the outdoor heat exchange device and the first heat exchange device.

[0017] A first electronic expansion valve is arranged on the second connecting pipeline and located on the side of the one-way valve close to the first heat exchange device.

[0018] According to the technical scheme provided in the application, the air conditioner thermal management unit further comprises an air conditioner heating circuit.

[0019] The air conditioner heating circuit is formed by sequentially connecting the compressor, the indoor heat exchange device and the first heat exchange device in the air conditioner refrigeration circuit to form a circulating flow path.

[0020] The indoor heat exchange device and the first heat exchange device are connected through a first branch pipeline; the two ends of the first branch pipeline are connected with a first connecting pipeline and a second connecting pipeline respectively, and the two connecting ports thereof are located on the side of the first electromagnetic valve close to the indoor heat exchange device and on the side of the one-way valve close to the first heat exchange device respectively; a second electromagnetic valve is arranged on the first branch pipeline.

[0021] According to the technical scheme provided in the application, the battery thermal management unit comprises a first battery liquid cooling circuit.

[0022] The first battery liquid cooling circuit comprises a first water pump, the first heat exchange device, a heater, a first three-way valve and the second heat exchange device connected in sequence to form a circulating flow path.

[0023] The output end of the first water pump is connected with the input end of the second heat exchange channel, and the input end thereof is connected with the output end of the third heat exchange channel.

[0024] The first three-way valve has a first input valve port, a first output valve port and a second output valve port, the first input valve port is connected with the output end of the heater, and the first output valve port is connected with the input end of the third heat exchange channel.

[0025] According to the technical scheme provided in the application, the battery thermal management unit comprises a second battery liquid cooling circuit.

[0026] The second battery liquid cooling circuit is sequentially connected with the first water pump in the first battery liquid cooling circuit, the first heat exchange member, the heater, the first three-way valve and the power battery cooling plate to form a circulating flow path.

[0027] The two ends of the power battery cooling plate are connected with the second output valve port and the input end of the first water pump respectively.

[0028] According to the technical scheme provided in the application, the controller thermal management unit comprises a first controller liquid cooling circuit.

[0029] The first controller liquid cooling circuit comprises a second water pump, a controller cooling plate, a second three-way valve and the second heat exchange member which are sequentially connected to form a circulating flow path.

[0030] The output end of the second water pump is connected with the controller cooling plate, and the input end thereof is connected with the output end of the fourth heat exchange channel.

[0031] The second three-way valve has a second input valve port, a third output valve port and a fourth output valve port, the second input valve port is connected with one end of the controller cooling plate away from the second water pump, and the third output valve port is connected with the input end of the fourth heat exchange channel.

[0032] According to the technical scheme provided in the application, the controller thermal management unit comprises a second controller liquid cooling circuit.

[0033] The second controller liquid cooling circuit is sequentially connected with the second water pump in the first controller liquid cooling circuit, the controller cooling plate, the second three-way valve and a radiator to form a circulating flow path.

[0034] The two ends of the radiator are connected with the fourth output valve port and the input end of the second water pump respectively.

[0035] In the second aspect, the application provides a vehicle applying the thermal management system of the intelligent driving and automatic driving vehicle.

[0036] In summary, the technical scheme specifically discloses a heat management system of an intelligent driving and automatic driving vehicle and the vehicle. The heat management system comprises an air conditioner heat management unit, a battery heat management unit and a controller heat management unit; the air conditioner heat management unit and the battery heat management unit share a same first heat exchange member, and the battery heat management unit and the controller heat management unit share a same second heat exchange member; the first heat exchange member has a first heat exchange channel and a second heat exchange channel, and the first heat exchange channel and the second heat exchange channel are respectively connected with the air conditioner heat management unit and the battery heat management unit; the second heat exchange member has a third heat exchange channel and a fourth heat exchange channel, and the third heat exchange channel and the fourth heat exchange channel are respectively connected with the battery heat management unit and the controller heat management unit; the air conditioner heat management unit, the battery heat management unit and the controller heat management unit are coupled with each other through the first heat exchange member and the second heat exchange member, so that the energy distribution efficiency of the heat management system is improved.

[0037] The heat management of the existing intelligent driving and automatic driving controller is relatively independent, cannot be coupled with other heat management systems of the vehicle, and thus the vehicle cannot efficiently perform energy distribution according to the working ranges of the battery, the air conditioner and other components. In the present application, the air conditioner heat management unit, the battery heat management unit and the controller heat management unit are coupled with each other through the first heat exchange member and the second heat exchange member, so that the energy distribution efficiency of the heat management system is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Other characteristics, objects and advantages of the present application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the attached drawings:

[0039] Figure 1 It is a structural schematic view of a heat management system of an intelligent driving and automatic driving vehicle.

[0040] Reference signs in the drawings: 1, first heat exchange member; 11, first heat exchange channel; 12, second heat exchange channel; 2, second heat exchange member; 21, third heat exchange channel; 22, fourth heat exchange channel; 3, compressor; 4, indoor heat exchange member; 5, outdoor heat exchange member; 6, first electromagnetic valve; 7, one-way valve; 8, first electronic expansion valve; 9, first water pump; 10, heater; 13, first three-way valve; 14, power battery cold plate; 15, second water pump; 16, controller cold plate; 17, second three-way valve; 18, radiator; 19, second electromagnetic valve; 20, evaporator; 23, expansion tank; 24, second electronic expansion valve; 25, gas-liquid separator. DETAILED DESCRIPTION

[0041] The application will be described in further detail below with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are intended to be illustrative only and not limiting of the application. Additionally, it is to be understood that the application can assume various alternative embodiments and still be within scope of the present application.

[0042] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0043] Embodiment 1: Please refer to Figure 1 The embodiment shown in the structural schematic diagram of a heat management system of an intelligent driving and autonomous driving vehicle, the heat management system comprising: an air conditioner heat management unit, a battery heat management unit and a controller heat management unit;

[0044] The air conditioner heat management unit and the battery heat management unit share the same first heat exchange member 1, and the battery heat management unit and the controller heat management unit share the same second heat exchange member 2;

[0045] The first heat exchange member 1 has a first heat exchange channel 11 and a second heat exchange channel 12, and the first heat exchange channel 11 and the second heat exchange channel 12 are respectively connected to the air conditioner heat management unit and the battery heat management unit;

[0046] The second heat exchange member 2 has a third heat exchange channel 21 and a fourth heat exchange channel 22, and the third heat exchange channel 21 and the fourth heat exchange channel 22 are respectively connected to the battery heat management unit and the controller heat management unit;

[0047] The air conditioner heat management unit, the battery heat management unit and the controller heat management unit are coupled to each other through the first heat exchange member 1 and the second heat exchange member 2 to improve the energy distribution efficiency of the heat management system.

[0048] In the embodiment of the present application, the type of the first heat exchange member 1 can be selected as a cooler, and the cooler has two heat exchange channels, i.e. the first heat exchange channel 11 and the second heat exchange channel 12; wherein by connecting the first heat exchange channel 11 and the second heat exchange channel 12 to the air conditioner heat management unit and the battery heat management unit respectively, the basic condition for the air conditioner heat management unit and the battery heat management unit to perform collaborative energy distribution and adjustment of the two heat management units at the cooler is realized.

[0049] Similarly, the type of the second heat exchange component 2 can be selected as a heat exchanger, which also has two heat exchange channels, i.e., a third heat exchange channel 21 and a fourth heat exchange channel 22, thereby realizing the basis adjustment of the energy distribution and adjustment of the battery thermal management unit and the controller thermal management unit at the heat exchanger. At the same time, since the battery thermal management unit includes the first heat exchange component 1 and the second heat exchange component 2, the architecture also realizes the air conditioner thermal management unit and the controller thermal management unit through the battery thermal management unit. Accordingly, the controller thermal management unit successfully realizes the coupling with the air conditioner thermal management unit and the battery thermal management unit, which facilitates the efficient energy distribution of the whole vehicle according to the working range and target demand of the battery, air conditioner and other components. In addition, it also lays the foundation for the heat management system to provide multiple working modes.

[0050] In a preferred embodiment, the air conditioner thermal management unit includes an air conditioner refrigeration circuit.

[0051] The air conditioner refrigeration circuit includes a compressor 3, an indoor heat exchange component 4, an outdoor heat exchange component 5 and the first heat exchange component 1 connected in sequence to form a circulating flow path.

[0052] The output end of the compressor 3 is connected with the indoor heat exchange component 4, and the input end thereof is connected with the output end of the first heat exchange channel 11. The input end of the first heat exchange channel 11 is connected with the output end of the outdoor heat exchange component 5.

[0053] Specifically, the types of the indoor heat exchange component 4 and the outdoor heat exchange component 5 can be selected as condensers. The indoor condenser is generally arranged in the air conditioner box and can be used for heating the passenger compartment by heat release. The outdoor condenser can realize heat exchange with the environment. In the air conditioner refrigeration circuit, the compressor 3 compresses the refrigerant into high-temperature and high-pressure gaseous refrigerant, which then enters the circulating flow path to participate in heat exchange.

[0054] Further, the high-temperature and high-pressure gaseous refrigerant flows through the indoor heat exchange component 4, then enters the outdoor heat exchange component 5 to exchange heat with the environment to form medium-temperature and high-pressure liquid refrigerant. Finally, the liquid refrigerant exchanges heat with the medium in the first heat exchange channel 11 and the second heat exchange channel 12 of the first heat exchange component 1 to form low-temperature liquid refrigerant, which returns to the compressor 3 through a gas-liquid separator 25. The gas-liquid separator 25 is designed to separate the gas and liquid components in the fluid to ensure that the refrigerant returned to the compressor 3 operates in the correct state.

[0055] It needs to be explained that since the heat management system provided by the embodiment of the present application has multiple heat exchange components, the state of the medium is relative. For example, the above-mentioned "high-temperature and high-pressure gaseous refrigerant at the outdoor heat exchange component 5 is converted into medium-temperature and high-pressure liquid refrigerant through heat exchange". The temperature of the medium-temperature liquid refrigerant is only relatively lower than that of the gaseous refrigerant generated by the compressor 3.

[0056] In a preferred embodiment, the air conditioning refrigeration circuit further comprises:

[0057] A first electromagnetic valve 6 is arranged on the first connecting pipeline between the indoor heat exchanger 4 and the outdoor heat exchanger 5. The first electromagnetic valve 6 is used to control whether the liquid refrigerant formed by heat exchange with the indoor heat exchanger 4 flows into the outdoor heat exchanger 5.

[0058] A one-way valve 7 is arranged on the second connecting pipeline between the outdoor heat exchanger 5 and the first heat exchanger 1. The one-way valve 7 is mainly used to prevent backflow of the medium and ensure the stability of the medium flow in the thermal management system.

[0059] A first electronic expansion valve 8 is arranged on the second connecting pipeline and located on the side of the one-way valve 7 close to the first heat exchanger 1. The electronic expansion valve can reduce the pressure and throttle the gas in the pipeline, and also can adjust the flow of the medium in the pipeline. In actual system application, the first electronic expansion valve 8 is used to reduce the pressure, throttle and flow adjustment of the medium formed by further heat exchange in the outdoor heat exchanger 5, so that the medium flowing into the first heat exchanger 1 is low-temperature and low-pressure liquid refrigerant, which not only ensures that the first heat exchanger 1 will not be impacted by high pressure, but also ensures the subsequent heat exchange efficiency.

[0060] In a preferred embodiment, the air conditioning thermal management unit further comprises: an air conditioning heating circuit;

[0061] The air conditioning heating circuit is formed by sequentially connecting the compressor 3, the indoor heat exchanger 4 and the first heat exchanger 1 in the air conditioning refrigeration circuit to form a circulating flow path.

[0062] The indoor heat exchanger 4 and the first heat exchanger 1 are connected through a first branch pipeline. The two ends of the first branch pipeline are respectively connected to the first connecting pipeline and the second connecting pipeline, and the two connecting ports thereof are respectively located on the side of the first electromagnetic valve 6 close to the indoor heat exchanger 4 and the side of the one-way valve 7 close to the first heat exchanger 1. A second electromagnetic valve 19 is arranged on the first branch pipeline.

[0063] Specifically, the air conditioning heating circuit is essentially based on the formed air conditioning refrigeration circuit, and a circulating flow path of compressor 3→indoor heat exchanger 4→second electromagnetic valve 19→first heat exchanger 1→compressor 3 is formed by using the first branch pipeline. In this process, the first electromagnetic valve 6 is closed, so that the high-temperature and high-pressure gaseous refrigerant only condenses and releases heat at the indoor heat exchanger 4, and then directly changes into low-temperature and low-pressure liquid refrigerant through the first branch pipeline, the second electromagnetic valve 19, the first electronic expansion valve 8 and the first heat exchanger 1.

[0064] In a preferred embodiment, the battery thermal management unit comprises: a first battery liquid cooling circuit;

[0065] The first battery liquid cooling circuit comprises a first water pump 9, a first heat exchange member 1, a heater 10, a first three-way valve 13 and a second heat exchange member 2 connected in sequence to form a circulating flow path;

[0066] The output end of the first water pump 9 is connected with the input end of the second heat exchange channel 12, and the input end thereof is connected with the output end of the third heat exchange channel 21;

[0067] The first three-way valve 13 has a first input valve port, a first output valve port A and a second output valve port B. The first input valve port is connected with the output end of the heater, and the first output valve port A is connected with the input end of the third heat exchange channel 21.

[0068] Specifically, in the first battery liquid cooling circuit, the circulating coolant in the circuit is provided by the first water pump 9. The coolant of the first water pump 9 enters the first heat exchange member 1 through the communication with the second heat exchange channel 12, exchanges heat with the medium in the first heat exchange channel 11, and further, the circuit is provided with the heater which can be used for heating the coolant to control the temperature of the coolant flowing into the third heat exchange channel 21, so as to realize the coupling with the air conditioning thermal management unit and the controller thermal management unit.

[0069] In a preferred embodiment, the battery thermal management unit comprises a second battery liquid cooling circuit;

[0070] The second battery liquid cooling circuit is formed by sequentially connecting the first water pump 9, the first heat exchange member 1, the heater 10, the first three-way valve 13 and the power battery cold plate 14 in the first battery liquid cooling circuit to form a circulating flow path;

[0071] The two ends of the power battery cold plate 14 are respectively connected with the second output valve port B and the input end of the first water pump 9.

[0072] Specifically, the power battery cold plate 14 is used to refer to a device for cooling the battery pack, which controls the heat generated by the battery pack through the heat exchange principle to keep the battery pack at a suitable working temperature. Essentially, the second battery liquid cooling circuit is based on the first battery liquid cooling circuit formed, and the power battery cold plate 14 is connected in parallel on both sides of the third heat exchange channel 21 in the second heat exchange member 2, forming a circulating flow path of the first water pump 9→ the first heat exchange member 1→ the heater 10→ the first three-way valve 13→ the power battery cold plate 14→ the first water pump 9. In this process, by controlling the opening and closing of the two output valve ports of the first three-way valve 13, the coolant passing through the heater 10 can be selectively flowed into the second heat exchange member 2 or the power battery cold plate 14. Of course, it can also be flowed into the second heat exchange member 2 and the power battery cold plate 14 through different output valve ports according to the flow control ratio of the first three-way valve 13. The specific needs should be combined with the actual working conditions and the set control strategy, which is not specially limited here.

[0073] In a preferred embodiment, the controller thermal management unit comprises: a first controller liquid cooling circuit;

[0074] The first controller liquid cooling circuit comprises, sequentially connected to form a circulating flow path, a second water pump 15, a controller cold plate 16, a second three-way valve 17, and a second heat exchange member 2;

[0075] The output end of the second water pump 15 is connected to the controller cold plate 16, and the input end thereof is connected to the output end of the fourth heat exchange channel 22;

[0076] The second three-way valve 17 has a second input port, a third output port C, and a fourth output port D. The second input port is connected to the end of the controller cold plate 16 away from the second water pump 15, and the third output port C is connected to the input end of the fourth heat exchange channel 22.

[0077] Specifically, the controller cold plate 16 refers to the cooling system of the intelligent / autonomous driving controller, which controls its own temperature through heat exchange to ensure its operation within the optimal working temperature range. In the first controller liquid cooling circuit, the circulating coolant in the circuit is provided by the second water pump 15. The coolant of the second water pump 15 enters the second heat exchange member 2 through communication with the fourth heat exchange channel 22, and exchanges heat with the medium in the third heat exchange channel 21, realizing coupling with the battery thermal management unit.

[0078] In a preferred embodiment, the controller thermal management unit comprises: a second controller liquid cooling circuit;

[0079] The second controller liquid cooling circuit is sequentially connected to form a circulating flow path by the second water pump 15, the controller cold plate 16, the second three-way valve 17, and the radiator 18 in the first controller liquid cooling circuit;

[0080] The two ends of the radiator 18 are respectively connected to the fourth output port D and the input end of the second water pump 15.

[0081] The second controller liquid cooling circuit is essentially based on the first controller liquid cooling circuit that has been formed. The radiator 18 is connected in parallel on both sides of the fourth heat exchange channel 22 in the second heat exchange member 2, forming a circulating flow path of the second water pump 9→ the controller cold plate 16→ the second three-way valve 17→ the radiator 18→ the second water pump 15. In this process, by controlling the opening and closing of the two output ports of the second three-way valve 17, the coolant passing through the controller cold plate 16 can be selectively flowed into the second heat exchange member 2 or the radiator 18. Of course, it can also be that the coolant is flowed into the second heat exchange member 2 and the radiator 18 according to the flow control ratio of the second three-way valve 17 through different output ports. The specific needs are combined with actual working conditions and set control strategies, which are not specially limited here.

[0082] In a preferred embodiment, an expansion tank 23 is further arranged between the controller thermal management unit and the battery thermal management unit, for accommodating the expansion water in the system to prevent damage caused by volume expansion due to the increase in water temperature of the cooling liquid; in the air conditioning thermal management circuit, an evaporator 20 arranged in the air conditioning tank is further included, the heat exchange channel in the evaporator 20 is connected to the pipeline between the one-way valve 7 and the first electronic expansion valve 8 at one end, and the second electronic expansion valve 24 is arranged on the pipeline where the evaporator 20 is located, and the other end is connected to the pipeline between the first heat exchange element 1 and the compressor 3. The evaporator 20 can convert liquid low-temperature refrigerant into vapor and absorb the heat of the cooled medium to achieve the corresponding refrigeration purpose.

[0083] Firstly, based on the above, the thermal management system has multiple thermal management units, and each thermal management unit corresponds to multiple circuits. The embodiment of the present application can form multiple comprehensive circuits through the common operation of multiple circulating flow paths to meet the functional requirements of the thermal management system. Next, the working mode in actual application will be introduced in combination with the structure and principle of the thermal management system.

[0084] (1) Working mode one: according to the second controller liquid cooling circuit flow; this working mode can cool the intelligent / autonomous driving controller through the radiator 18.

[0085] When the inlet air temperature of the radiator 18, i.e. the ambient temperature, is greater than T01 and less than T00, and the inlet water temperature of the controller cold plate 16 is greater than T10, cooling is entered, the cooling liquid flows through the controller cold plate 16, takes out the heat, and then exchanges heat with the environment through the radiator 18, and when the inlet water temperature of the controller cold plate 16 is less than T11, the cooling is exited.

[0086] (2) Working mode two: according to the first controller liquid cooling circuit + the first battery liquid cooling circuit + the air conditioning refrigeration circuit flow; this working mode can cool the intelligent / autonomous driving controller through the refrigerant.

[0087] When the inlet air temperature of the radiator 18, i.e. the ambient temperature, is greater than T00, the controller cold plate 16 cannot be cooled through the environment or the cooling effect is poor, when the inlet water temperature of the controller cold plate 16 is greater than T10, the refrigerant passes through the compressor 3, then condenses and releases heat through the indoor heat exchange element 4 and the outdoor heat exchange element 5, then throttles through the first electronic expansion valve 8, and then evaporates and absorbs heat through the first heat exchange element 1, thereby reducing the temperature of the cooling liquid flowing through the first heat exchange element 1. The cooling liquid after being cooled cools the liquid outlet of the controller cold plate 16 through the second heat exchange element 2, thereby realizing the cooling of the controller cold plate 16. This mode has strong cooling capacity and can realize the rapid cooling of the controller cold plate 16, and when the inlet water temperature of the controller cold plate 16 is less than T11, the cooling is exited.

[0088] (3) Working mode three: according to the first and second controller liquid cooling circuits + the first battery liquid cooling circuit + the air conditioning refrigeration circuit flow; this working mode can adjust the flow through the second heat exchange element 2 and the radiator 18 through the second three-way valve 17, and the conditions are similar to those of working mode two, and is suitable for using refrigerant cooling controller cold plate 16;

[0089] For example, if the compressor 3 rotation speed has been the lowest, and the controller inlet water temperature is lower than the dew point temperature, and the controller is damaged by the condensate water, the flow into the radiator 18 and the second heat exchange element 2 can be adjusted through the second three-way valve 17 PI, so that the inlet water temperature of the controller cold plate 16 is greater than the dew point temperature.

[0090] (4) Working mode four: according to the first controller liquid cooling circuit + the first battery liquid cooling circuit + the air conditioning heating circuit flow; this working mode can heat the controller cold plate 16 and the passenger cabin by using the heater 10 in low temperature working conditions; at the same time, in the medium temperature working condition, the passenger cabin is heated by using the waste heat of the intelligent / automatic driving controller.

[0091] When the ambient temperature is less than T02 and the inlet water temperature of the controller cold plate 16 is less than T14, the cooling liquid is heated by the heater 10, and then the low-temperature liquid flowing through the fourth heat exchange channel 22 on the side of the controller cold plate 16 is heated by the second heat exchanger 2, so as to realize the heating of the controller cold plate 16; when the inlet water temperature of the controller cold plate 16 is greater than T13, the heating is exited.

[0092] At the same time, if the passenger cabin has heating demand, the refrigerant compressed by the compressor 3 is cooled by the indoor heat exchange element 4 to realize passenger heating, and the cooled refrigerant is throttled by the first electronic expansion valve 8 and absorbs heat from the first heat exchange element 1 to return to the compressor 3; in another flow path, the cooling liquid of the first water pump 9 is heated by the heater 10 and cooled after heat exchange in the first heat exchange element 1; because the intelligent / automatic driving controller generates a large amount of heat, when the passenger cabin needs to be heated by the heat pump, the inlet water temperature of the controller cold plate 16 is greater than T12 and less than T10, the liquid refrigerant flowing through the first heat exchange element 1 can be heated by the second heat exchange element 2, so as to realize the waste heat heating of the air conditioner, and when the inlet water temperature is less than T13, the waste heat utilization is exited.

[0093] (5) Working mode five: according to the first controller liquid cooling circuit + the first and second battery liquid cooling circuits + the air conditioning heating circuit flow; this working mode can realize the heating of the controller cold plate 16, the battery pack and the passenger cabin by the heater 10 in low temperature working conditions or extremely low temperature working conditions;

[0094] When the intelligent / autonomous driving controller has excess heat, it can be used to heat the battery pack or the passenger cabin. When the water inlet temperature of the controller cold plate 16 is less than T14 and the battery pack has a heating requirement, the flow through the power battery cold plate 14 and the second heat exchange element 2 can be adjusted by the first three-way valve 13 to heat the battery pack and the intelligent / autonomous driving controller. The heating principle and mode are similar to mode four. In addition, in the low-temperature working condition, when the water inlet temperature of the controller cold plate 16 is greater than T12 and less than T10, the battery pack or the air conditioner can be heated by the second heat exchange element 2 and the first three-way valve 13, which can increase the discharge capacity of the battery pack and reduce the energy consumption of the air conditioner, thereby improving the vehicle range.

[0095] It should be explained that the temperature values described above are as follows: T00 can be set to 30℃, T01 can be set to 20℃, and T02 can be set to 5℃; that is, T00>T01>T02; T10 can be set to 35℃, T11 can be set to 25℃, and T12 can be set to 20℃; T13 can be set to 15℃, and T14 can be set to 0℃; that is, T10>T11>T12>T13>T14; the specific values set above are not specially limited, and are only exemplary descriptions here.

[0096] Accordingly, the heat management system architecture of the embodiments of the present application can realize the cooling, heating and excess heat utilization of the intelligent / autonomous driving controller by coupling the air conditioner heat management unit, the battery heat management unit and the controller heat management unit, can ensure that the intelligent / autonomous driving controller is in a reasonable temperature range, ensures its normal and stable operation, can realize the radiator cooling of the intelligent / autonomous driving controller, the air conditioner cooling, can adjust the water inlet temperature of the intelligent / autonomous driving controller, and can prevent condensation damage to the controller. Finally, in some special working conditions, for example, in the low-temperature working condition, the intelligent / autonomous driving controller can also be heated to ensure the operation reliability in the low-temperature condition, and the excess heat of the controller can be used to heat the passenger cabin and the battery, thereby effectively reducing the energy consumption of the low-temperature air conditioner and improving the low-temperature range.

[0097] Embodiment 2: Based on the heat management system of the intelligent driving and autonomous driving vehicle described in embodiment 1, the present embodiment proposes a vehicle, which optimizes the energy distribution of the whole vehicle, improves the utilization efficiency of the total energy, and ensures the vehicle power by coupling the air conditioner heat management unit, the battery heat management unit and the controller heat management unit.

[0098] The above description is only the preferred embodiment of the present application and the explanation of the technical principles. It should be understood by those skilled in the art that the scope of the protection of the present application is not limited to the technical solutions formed by the specific combinations of the above technical features. It should also cover other technical solutions formed by the combinations of the above technical features or their equivalent features without departing from the concept of the present application. For example, the technical solutions formed by the mutual replacements of the above features and the technical features disclosed in the present application (but not limited to) with similar functions.

Claims

1. A thermal management system for an intelligent and autonomous vehicle, the system comprising: The application relates to a heat management system for an electric vehicle, which comprises an air conditioner heat management unit, a battery heat management unit and a controller heat management unit. The air conditioner heat management unit and the battery heat management unit share a first heat exchange element (1), and the battery heat management unit and the controller heat management unit share a second heat exchange element (2). The first heat exchange element (1) has a first heat exchange channel (11) and a second heat exchange channel (12), and the first heat exchange channel (11) and the second heat exchange channel (12) are respectively connected with the air conditioner heat management unit and the battery heat management unit. The second heat exchange element (2) has a third heat exchange channel (21) and a fourth heat exchange channel (22), and the third heat exchange channel (21) and the fourth heat exchange channel (22) are respectively connected with the battery heat management unit and the controller heat management unit. The air conditioner heat management unit, the battery heat management unit and the controller heat management unit are coupled with each other through the first heat exchange element (1) and the second heat exchange element (2), so that the energy distribution efficiency of the heat management system is improved. The air conditioner heat management unit comprises an air conditioner refrigeration circuit.

2. The thermal management system of a smart and autonomous vehicle according to claim 1, wherein, The air conditioner refrigeration circuit comprises a compressor (3), an indoor heat exchange element (4), an outdoor heat exchange element (5) and the first heat exchange element (1) which are sequentially connected to form a circulating flow path. The output end of the compressor (3) is connected with the indoor heat exchange element (4), and the input end is connected with the output end of the first heat exchange channel (11); and the input end of the first heat exchange channel (11) is connected with the output end of the outdoor heat exchange element (5). The air conditioner refrigeration circuit further comprises:

3. The thermal management system of a smart and autonomous vehicle according to claim 2, wherein, A first electromagnetic valve (6) is arranged on a first connecting pipeline between the indoor heat exchange element (4) and the outdoor heat exchange element (5); A one-way valve (7) is arranged on a second connecting pipeline between the outdoor heat exchange element (5) and the first heat exchange element (1); A first electronic expansion valve (8) is arranged on the second connecting pipeline and located on the side of the one-way valve (7) close to the first heat exchange element (1). The air conditioner heat management unit further comprises an air conditioner heating circuit.

4. The thermal management system of a smart and autonomous vehicle according to claim 3, wherein, The air conditioner heating circuit is formed by sequentially connecting the compressor (3), the indoor heat exchange element (4) and the first heat exchange element (1) in the air conditioner refrigeration circuit. The indoor heat exchange element (4) and the first heat exchange element (1) are connected through a first branch pipeline; the two ends of the first branch pipeline are respectively connected with a first connecting pipeline and a second connecting pipeline, and the two connecting ports are respectively located on the side of the first electromagnetic valve (6) close to the indoor heat exchange element (4) and on the side of the one-way valve (7) close to the first heat exchange element (1); and a second electromagnetic valve (19) is arranged on the first branch pipeline. The battery heat management unit comprises a first battery liquid cooling circuit.

5. The thermal management system of a smart and autonomous vehicle according to claim 1, wherein, ​ The first battery liquid cooling circuit comprises a first water pump (9), the first heat exchange member (1), a heater (10), a first three-way valve (13) and the second heat exchange member (2) connected in sequence to form a circulating flow path. The output end of the first water pump (9) is connected with the input end of the second heat exchange channel (12), and the input end thereof is connected with the output end of the third heat exchange channel (21). The first three-way valve (13) has a first input valve port, a first output valve port and a second output valve port, the first input valve port is connected with the output end of the heater (10), and the first output valve port is connected with the input end of the third heat exchange channel (21).

6. The thermal management system of a smart and autonomous vehicle according to claim 5, wherein, The battery thermal management unit comprises a second battery liquid cooling circuit. The second battery liquid cooling circuit is formed by sequentially connecting the first water pump (9), the first heat exchange member (1), the heater (10), the first three-way valve (13) and a power battery cold plate (14) in the first battery liquid cooling circuit to form a circulating flow path. The two ends of the power battery cold plate (14) are respectively connected with the second output valve port and the input end of the first water pump (9).

7. The thermal management system of a smart and autonomous vehicle according to claim 1, wherein, The controller thermal management unit comprises a first controller liquid cooling circuit. The first controller liquid cooling circuit comprises a second water pump (15), a controller cold plate (16), a second three-way valve (17) and the second heat exchange member (2) connected in sequence to form a circulating flow path. The output end of the second water pump (15) is connected with the controller cold plate (16), and the input end thereof is connected with the output end of the fourth heat exchange channel (22). The second three-way valve (17) has a second input valve port, a third output valve port and a fourth output valve port; the second input valve port is connected with one end of the controller cold plate (16) away from the second water pump (15), and the third output valve port is connected with the input end of the fourth heat exchange channel (22). 8.The thermal management system of a smart or autonomous vehicle according to claim 7, wherein, The controller thermal management unit comprises a second controller liquid cooling circuit. The second controller liquid cooling circuit is formed by sequentially connecting the second water pump (15), the controller cold plate (16), the second three-way valve (17) and a radiator (18) in the first controller liquid cooling circuit to form a circulating flow path. The two ends of the radiator (18) are respectively connected with the fourth output valve port and the input end of the second water pump (15).

9. A vehicle characterized by comprising: The application has the advantages that the intelligent driving and automatic driving vehicle thermal management system has the advantages that the intelligent driving and automatic driving vehicle thermal management system has the advantages that

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