CN114571955B

CN114571955B - Thermal management system, control method, control device, program product, storage medium, and vehicle

Info

Publication number: CN114571955B
Application number: CN202210346689.8A
Authority: CN
Inventors: 杨留; 刘和成
Original assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd; Midea Group Shanghai Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd; Midea Group Shanghai Co Ltd
Filing date: 2022-03-31
Publication date: 2024-05-03
Anticipated expiration: 2042-03-31

Abstract

The invention discloses a thermal management system, a control method, a control device, a program product, a storage medium, and a vehicle. The thermal management system includes: the heat pump air conditioning system comprises a compressor, a first heat exchanger, a first throttling element, an in-cabin heat exchanger, a first branch and a second branch which are connected in parallel, wherein the first branch comprises the second throttling element and an out-cabin heat exchanger which are connected in series, and the second branch comprises a stop valve; the compressor, the first heat exchanger, the first throttling element, the cabin heat exchanger, the second throttling element and the cabin heat exchanger are sequentially connected to form a refrigerant heating loop, wherein the first throttling element is in a complete opening state, and the second throttling element is in a throttling state; the compressor, the first heat exchanger, the first throttling piece, the in-cabin heat exchanger and the stop valve are sequentially connected to form a refrigerant refrigerating loop. The heat management system realizes that the refrigerant loop is not reversed when the passenger cabin heats and refrigerates by additionally arranging the second throttling element and the stop valve, and has simple structure, low failure rate and high energy efficiency.

Description

Thermal management system, control method, control device, program product, storage medium, and vehicle

Technical Field

The present invention relates to the field of, but is not limited to, vehicle thermal management, and in particular, but not limited to, a thermal management system, a thermal management control method, a thermal management control device, a computer program product, a non-transitory computer readable storage medium, and a vehicle.

Background

Along with the improvement of environmental protection requirements, the development speed of the new energy automobile industry is faster and faster, and particularly the pure electric automobile has become an important direction of the development of the modern automobile industry, and the whole automobile heat management technology of the new energy automobile is also more and more important. Due to anxiety about the endurance mileage, how to improve the endurance mileage of the electric vehicle through an efficient and energy-saving thermal management technology is also becoming a direction of important research. How to more economically and effectively meet the heat management requirement of the whole car, save the power consumption of the battery and improve the endurance mileage of the whole car is the key development direction of the heat management of the current electric car.

Disclosure of Invention

The embodiment of the application aims to provide a thermal management system, a control method, a control device, a program product, a storage medium and a vehicle, wherein an outdoor heat exchanger of a heat pump air conditioning system is only used as an evaporator, so that the condensation performance of the heat pump air conditioning system is not required to be considered, and the energy efficiency is greatly improved.

An embodiment of the present application provides a thermal management system, including:

The heat pump air conditioning system comprises a compressor, a first heat exchanger, a first throttling element, an in-cabin heat exchanger, a first branch and a second branch which are connected in parallel, wherein the first branch comprises a second throttling element and an out-cabin heat exchanger which are connected in series, and the second branch comprises a stop valve;

The compressor, the first heat exchanger, the first throttling element, the in-cabin heat exchanger, the second throttling element and the out-of-cabin heat exchanger are sequentially connected to form a refrigerant heating loop so as to heat the passenger cabin, wherein the first throttling element is in a fully opened state, the second throttling element is in a throttled state, the first heat exchanger is used as a condenser, and the out-of-cabin heat exchanger is used as an evaporator;

the compressor, the first heat exchanger, the first throttling piece, the in-cabin heat exchanger and the stop valve are sequentially connected to form a refrigerant refrigerating loop so as to refrigerate the passenger cabin, wherein the first throttling piece is in a throttling state, the first heat exchanger is used as a condenser, and the in-cabin heat exchanger is used as an evaporator;

The thermal management system further comprises a radiator, a control valve and a passenger cabin heating assembly, wherein the control valve is an eight-way valve, the eight-way valve comprises a valve core and eight valve ports, and the passenger cabin heating assembly comprises a first pump and a second heat exchanger;

The control valve has different on-off states, wherein when the passenger cabin is required to be heated, the heat pump air conditioning system can operate the refrigerant heating loop, the control valve enables the passenger cabin heating loop to be communicated, the passenger cabin heating loop is disconnected from the radiator, and the second heat exchanger heats the cabin; when the passenger cabin is required to be refrigerated, the heat pump air conditioning system can operate a refrigerant refrigerating loop, and the control valve enables the first pump, the second heat exchange flow channel, the second heat exchanger and the radiator to be communicated to form a circulating loop.

The embodiment of the application also provides a thermal management control method, which is applied to the thermal management system described in the above embodiment, and includes:

determining a target working mode of the thermal management system;

Controlling a controlled component of the thermal management system to operate the thermal management system in the target operating mode;

wherein the controlled component comprises: the compressor, the first throttling piece, the second throttling piece and the stop valve; the target working mode comprises the following steps: a passenger compartment cooling mode and a passenger compartment heating mode.

The embodiment of the application also provides a thermal management control device, which comprises a processor and a memory storing a computer program, wherein the processor realizes the steps of the thermal management control method according to the embodiment when executing the computer program.

The embodiments of the present application also provide a computer program product comprising a computer program which, when executed by a processor, implements the steps of the thermal management control method as described in the above embodiments.

Embodiments of the present application also provide a non-transitory computer readable storage medium storing a computer program which, when executed by a processor, implements thermal management control as described in the above embodiments

The preparation method.

The embodiment of the application also provides a vehicle which comprises the thermal management system and the thermal management control device.

According to the heat management system provided by the embodiment of the application, the second throttling element and the stop valve are additionally arranged, so that the refrigerant loop is not reversed when the passenger cabin is heated and cooled, and therefore, the reversing valve can be omitted.

Drawings

FIG. 1 is a schematic diagram of a thermal management system according to an embodiment of the present application;

FIG. 2 is a schematic illustration of the thermal management system of FIG. 1 in a passenger compartment cooling mode;

FIG. 3 is a schematic diagram of the thermal management system of FIG. 1 in a first electrical device cooling mode;

FIG. 4 is a schematic illustration of the thermal management system of FIG. 1 in a first electrical device and passenger compartment simultaneous cooling mode;

FIG. 5 is a schematic illustration of the thermal management system of FIG. 1 in a passenger compartment heating mode;

FIG. 6 is a schematic illustration of the thermal management system of FIG. 1 in a first electrical device heating mode or in a first electrical device and passenger compartment simultaneous heating mode;

FIG. 7 is a schematic diagram of the thermal management system of FIG. 1 in a waste heat recovery heating mode;

FIG. 8 is a schematic diagram of the thermal management system of FIG. 1 in a first electrical device mode for heat retention by waste heat;

FIG. 9 is a schematic diagram of the thermal management system of FIG. 1 in a second electrical device heat dissipation mode;

FIG. 10 is a schematic illustration of the thermal management system of FIG. 1 in a passenger compartment cooling and dehumidification mode;

FIG. 11 is a schematic illustration of the thermal management system of FIG. 1 in a passenger compartment heating dehumidification mode;

FIG. 12 is a schematic illustration of the thermal management system of FIG. 1 in an off-board heat exchanger defrost mode;

FIG. 13 is a schematic diagram of a control valve of a thermal management system according to one embodiment of the present application;

FIG. 14 is a schematic view of the internal structure of the control valve of FIG. 13 in a first state;

FIG. 15 is a schematic view of the internal structure of the control valve of FIG. 13 in a second state;

FIG. 16 is a schematic view of the internal structure of the control valve of FIG. 13 in a third state;

FIG. 17 is a schematic view of the internal structure of the control valve of FIG. 13 in a fourth state;

Fig. 18 is a flowchart of a thermal management control method according to an embodiment of the application.

In the drawings, the list of components represented by the various numbers is as follows:

1	Compressor with a compressor body having a rotor with a rotor shaft	2	First heat exchanger	3A	First pass of regenerator
						3B	Second channel of regenerator	4	First throttling element	5	Cabin heat exchanger
6	Second heat exchanger	7	Third throttling element	8	Third heat exchanger
						9	Second throttling element	10	Stop valve	11	Outdoor heat exchanger
12	Radiator	13	Gas-liquid separator	14	First pump
						15	Second pump	16	Third pump	17	Fourth heat exchanger
18	Fifth heat exchanger	19	Control valve	20	Electronic fan
						21	Blower fan	22	Electric heater

Detailed Description

The principles and features of the present application are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the application and are not to be construed as limiting the scope of the application.

An embodiment of the present application provides a thermal management system, fig. 1 is a schematic diagram of the thermal management system according to an embodiment of the present application, fig. 2-12 are schematic diagrams of the thermal management system in different operation modes, and fig. 2-12 are schematic diagrams of the thermal management system in which a loop formed by a thick solid line is conducted.

As shown in fig. 1, the thermal management system includes a heat pump air conditioning system including a compressor 1, a first heat exchanger 2, a first throttle 4, an in-cabin heat exchanger 5, and first and second branches connected in parallel, in that the first branch includes a second throttle 9 and an out-cabin heat exchanger 11 connected in series, and the second branch includes a shut-off valve 10.

By controlling the opening degree, the on-off state and the like of the first throttling element 4, the second throttling element 9 and the stop valve 10, different refrigerant circulation loops can be formed in the heat pump air conditioning system. When the first throttling element 4 is in the fully opened state, the second throttling element 9 is in the throttled state, and the stop valve 10 is in the opened state, as shown in fig. 5, the compressor 1, the first heat exchanger 2, the first throttling element 4, the in-cabin heat exchanger 5, the second throttling element 9 and the out-cabin heat exchanger 11 are sequentially connected to form a refrigerant heating loop, so as to heat the passenger cabin, namely, heat the air in the passenger cabin by using the in-cabin heat exchanger 5.

As shown in fig. 2, when the first throttling element 4 is in the throttled state and the stop valve 10 is in the connected state, the compressor 1, the first heat exchanger 2, the first throttling element 4, the in-cabin heat exchanger 5 and the stop valve 10 are sequentially connected to form a refrigerant refrigeration circuit to refrigerate the passenger cabin, that is, cool the air in the passenger cabin by using the in-cabin heat exchanger 5.

In the operation process of the heat pump air conditioning system, as shown in fig. 5, when the first throttling element 4 is in a completely opened state, the second throttling element 9 is in a throttled state, and the stop valve 10 is in a disconnected state, the compressor 1, the first heat exchanger 2, the first throttling element 4, the in-cabin heat exchanger 5, the second throttling element 9 and the out-cabin heat exchanger 11 are sequentially connected to form a circulation loop, and a refrigerant (refrigerant) discharged from the compressor 1 can sequentially flow through the first heat exchanger 2, the first throttling element 4, the in-cabin heat exchanger 5, the second throttling element 9 and the out-cabin heat exchanger 11 and then flow back to the compressor 1. Since the first throttling element 4 upstream of the cabin heat exchanger 5 is completely opened, throttling is not performed, but the second throttling element 9 downstream of the cabin heat exchanger 5 is utilized to throttle, so that the air in the passenger cabin can be heated when the refrigerant flows through the cabin heat exchanger 5, and the passenger cabin heating function is realized, the formed circulation loop is a refrigerant heating loop, in which the first heat exchanger 2 is used as a condenser, and the cabin heat exchanger 11 is used as an evaporator.

As shown in fig. 2, when the first throttling part 4 is in the throttled state and the shut-off valve 10 is in the connected state, the compressor 1, the first heat exchanger 2, the first throttling part 4, the in-cabin heat exchanger 5 and the shut-off valve 10 are sequentially connected to form a circulation loop, and the refrigerant discharged from the compressor 1 can sequentially flow through the first heat exchanger 2, the first throttling part 4, the in-cabin heat exchanger 5 and the shut-off valve 10 and then flow back to the compressor 1. The first throttling element 4 upstream of the cabin heat exchanger 5 throttles, so that the refrigerant can evaporate and absorb heat when flowing through the cabin heat exchanger 5 so as to cool the air in the passenger cabin and realize the passenger cabin refrigeration function, and the formed circulation loop is a refrigerant refrigeration loop, wherein the first heat exchanger 2 is used as a condenser, the cabin heat exchanger 5 is used as an evaporator, and the cabin heat exchanger 11 does not work.

In the refrigerant refrigeration circuit, the second throttling element 9 can be closed, so that the first branch is disconnected, and the refrigerant flows through the second branch where the stop valve 10 is positioned. Of course, the second throttle 9 may be in a throttled state or a fully opened state, and the refrigerant hardly flows through the first branch because of the high flow resistance of the first branch, but flows through the second branch where the shutoff valve 10 is located.

According to the heat pump air conditioning system provided by the embodiment of the application, the second throttling element 9 and the stop valve 10 are additionally arranged, so that the refrigerant loop is not reversed when the passenger cabin is heated and cooled, and the reversing valve can be omitted.

In some exemplary embodiments, as shown in FIG. 2, the thermal management system further comprises: a passenger compartment heating assembly comprising a first pump 14 and a second heat exchanger 6.

The first heat exchanger 2 comprises a first heat exchange flow passage and a second heat exchange flow passage, and the first heat exchange flow passage is a refrigerant flow passage connected with the compressor 1; as shown in fig. 5, the first pump 14, the second heat exchanging flow path, and the second heat exchanger 6 are connected to form a passenger compartment heating circuit to heat the passenger compartment with the second heat exchanger 6.

In the first heat exchanger 2, a first heat exchange flow passage is a refrigerant flow passage through which a refrigerant discharged from the compressor 1 can flow; the second heat exchange flow passage can be connected with the first pump 14 and the second heat exchanger 6 to form a passenger cabin heating loop, a secondary refrigerant (such as water or other liquid or gas) can circularly flow in the passenger cabin heating loop under the power action of the first pump 14, and the secondary refrigerant can exchange heat with the refrigerant in the first heat exchange flow passage when flowing through the second heat exchange flow passage, and the refrigerant can heat the secondary refrigerant, and the heated secondary refrigerant can heat air in the passenger cabin when flowing through the second heat exchanger 6, so that the passenger cabin heating function is realized.

In the thermal management system provided by the embodiment of the application, when the passenger cabin is heated, the air in the cabin is heated once through the in-cabin heat exchanger 5, and the air in the cabin is heated secondarily through the second heat exchanger 6, so that the heating effect is high.

By arranging the passenger cabin heating assembly, the heat pump air conditioning system indirectly heats the air in the cabin through the secondary refrigerant. Of course, the first heat exchanger 2 may directly perform secondary heating on the cabin air when the cabin air flows through, and the first heat exchanger 2 may only include the first heat exchange flow channel.

In some exemplary embodiments, as shown in fig. 1, the passenger compartment heating assembly further includes an electric heater 22, and the electric heater 22 may be disposed between the second heat exchange flow path of the first heater and the second heat exchanger 6, or on a side of the second heat exchanger 6 remote from the second heat exchange flow path of the first heater. Wherein the electric heater may be a PTC (Positive Temperature Coefficient ) heater.

In some exemplary embodiments, as shown in fig. 1, the thermal management system further comprises a blower 21, which blower 21 may be turned on to increase the heat exchange efficiency when the in-cabin heat exchanger 5 and/or the second heat exchanger 6 needs to exchange heat with the in-cabin air.

In some exemplary embodiments, as shown in FIG. 1, the thermal management system further comprises: radiator 12 and control valve 19, radiator 12 and the passenger compartment heating component are connected with control valve 19.

Wherein, as shown in fig. 5, the control valve 19 is arranged to control the communication of the passenger cabin heating circuit and the disconnection of the radiator 12; or as shown in fig. 2 and 12, the first pump 14, the second heat exchange flow channel, the second heat exchanger 6 and the radiator 12 are controlled to be connected to form a refrigerant heat dissipation loop so as to dissipate heat by the radiator 12 or heat and defrost the outdoor heat exchanger 11.

The control valve 19 has different on-off states. When the passenger cabin needs to be heated, as shown in fig. 5, the heat pump air conditioning system can operate the refrigerant heating circuit, and the control valve 19 enables the passenger cabin heating circuit to be connected, and the passenger cabin heating circuit is disconnected from the radiator 12, so that the second heat exchanger 6 in the passenger cabin heating circuit can be used for heating the air in the cabin.

As shown in fig. 2, when the passenger cabin needs to be refrigerated, the heat pump air conditioning system can operate a refrigerant refrigeration loop, and the control valve 19 enables the first pump 14, the second heat exchange flow channel, the second heat exchanger 6 and the radiator 12 to be communicated to form a circulation loop, the refrigerating medium can flow in the circulation loop under the power action of the first pump 14, when the refrigerating medium flows through the second heat exchange flow channel of the first heat exchanger 2, the refrigerating medium can exchange heat with the refrigerating medium flowing through the first heat exchange flow channel of the first heat exchanger 2, the refrigerating medium can heat the refrigerating medium, when the heated refrigerating medium flows through the radiator 12, heat can be radiated to realize heat radiation of the refrigerating medium, and the heat of the radiator 12 can be radiated to the environment; or as shown in fig. 12, when the outdoor heat exchanger 11 needs to be defrosted, the control valve 19 may enable the first pump 14, the second heat exchange flow passage, the second heat exchanger 6 and the radiator 12 to be communicated to form a circulation loop, so that the outdoor heat exchanger 11 is heated by using heat emitted from the radiator 12 to remove frost condensed on the outdoor heat exchanger 11.

In some exemplary embodiments, as shown in fig. 1, the thermal management system further includes an electronic fan 20, and the electronic fan 20 may be turned on to increase the heat exchange efficiency when the off-board heat exchanger 11 needs to exchange heat and/or the radiator 12 needs to dissipate heat.

In some exemplary embodiments, as shown in fig. 1, the heat pump air conditioning system further includes: a third branch formed by the third throttling element 7 and the third heat exchanger 8 which are connected in series, a fourth branch formed by the first throttling element 4 and the in-cabin heat exchanger 5, and the third branch and the fourth branch are connected in parallel.

As shown in fig. 3, the compressor 1, the first heat exchanger 2, the third throttling element 7, the third heat exchanger 8, and the stop valve 10 are connected to form a refrigerant cooling circuit, so that the refrigerant in the third heat exchanger 8 is used to cool the first electric device.

In the heat pump air conditioning system, the third throttling element 7 and the third heat exchanger 8 are connected in series and then connected in parallel with the first throttling element 4 and the cabin heat exchanger 5. When the first electric device (such as a battery) needs to be cooled, the first throttling element 4 is controlled to be in an off state, the second throttling element 9 is controlled to be in an off state (or a fully opened state or a throttling state), the third throttling element 7 is controlled to be in a throttling state, the stop valve 10 is controlled to be in a communicating state, at this time, the compressor 1, the first heat exchanger 2, the third throttling element 7, the third heat exchanger 8 and the stop valve 10 are sequentially communicated to form a refrigerant loop, and the refrigerant discharged from the compressor 1 can sequentially flow through the first heat exchanger 2, the third throttling element 7, the third heat exchanger 8 and the stop valve 10 and then flow back to the compressor 1. Because the third throttling element 7 at the upstream of the third heat exchanger 8 throttles, the refrigerant can evaporate and absorb heat when flowing through the third heat exchanger 8, so that the third heat exchanger 8 is used for cooling the first electric device.

In the heat pump air conditioning system, through addding third throttling element 7 and third heat exchanger 8, realized utilizing third heat exchanger 8 to cool down to first electrical components, prevent that the temperature of first electrical components is too high, influence operational reliability and life.

In some exemplary embodiments, as shown in FIG. 1, the thermal management system further comprises: a first heat exchange assembly comprising a second pump 15 and a fourth heat exchanger 17 exchanging heat with the first electrical device.

The third heat exchanger 8 comprises a third heat exchange flow passage and a fourth heat exchange flow passage, and the third heat exchange flow passage is used for forming a refrigerant cooling loop; as shown in fig. 3, the second pump 15, the fourth heat exchange flow passage and the fourth heat exchanger 17 are connected to form a first electric device refrigeration circuit to cool the first electric device by the fourth heat exchanger 17.

In the third heat exchanger 8, a third heat exchange flow passage is a refrigerant flow passage through which a refrigerant discharged from the compressor 1 can flow; the fourth heat exchange flow passage can be connected with the second pump 15 and the fourth heat exchanger 17 to form a first electric device refrigerating circuit, the refrigerating medium can circulate in the first electric device refrigerating circuit under the power action of the second pump 15, and when flowing through the fourth heat exchange flow passage, the refrigerating medium can exchange heat with the refrigerating medium in the third heat exchange flow passage, the refrigerating medium can cool the refrigerating medium, and when flowing through the fourth heat exchanger 17, the cooled refrigerating medium can cool the first electric device.

By arranging the first heat exchange assembly, the heat pump air conditioning system can indirectly cool the first electric device through the secondary refrigerant. Of course, the third heat exchanger 8 may also utilize ambient air as the coolant to cool the first electrical device, and the third heat exchanger 8 may only include the third heat exchange flow path.

In some exemplary embodiments, as shown in FIG. 1, the first heat exchange assembly is coupled to a control valve 19.

As shown in fig. 5, the control valve 19 is provided to control the passenger compartment heating circuit to be in communication and disconnected from the first heat exchange assembly; or as shown in fig. 3, the first electric device refrigerating circuit is controlled to be communicated and disconnected with the passenger cabin heating component; or as shown in fig. 6, the first pump 14, the second heat exchange flow channel, the second heat exchanger 6, the second pump 15, the fourth heat exchange flow channel and the fourth heat exchanger 17 are controlled to be connected to form a first electric device heating loop, so that the fourth heat exchanger 17 is used for heating the first electric device.

The control valve 19 has different on-off states. When the passenger cabin needs to be heated, as shown in fig. 5, the heat pump air conditioning system can operate the refrigerant heating circuit, and the control valve 19 enables the passenger cabin heating circuit to be connected, the passenger cabin heating circuit is disconnected from the radiator 12, and the passenger cabin heating circuit is disconnected from the first heat exchange component, so that the second heat exchanger 6 in the passenger cabin heating circuit can be used for heating the cabin air.

As shown in fig. 3, when the first electric device needs to be cooled, the heat pump air conditioning system may operate the refrigerant cooling circuit, and the control valve 19 makes the first electric device cooling circuit connected, the first electric device cooling circuit disconnected from the passenger compartment heating component, the first electric device cooling circuit disconnected from the radiator 12, and the refrigerant heat dissipation circuit formed, and at this time, the fourth heat exchanger 17 in the first electric device cooling circuit may be used to cool the first electric device.

As shown in fig. 6, when the first electric device needs to be heated, the heat pump air conditioning system can operate the refrigerant heating circuit, and when the control valve 19 enables the first pump 14, the second heat exchange flow channel, the second heat exchanger 6, the second pump 15, the fourth heat exchange flow channel and the fourth heat exchanger 17 to be communicated to form a circulation circuit, the refrigerant can flow in the circulation circuit under the power action of the first pump 14 and/or the second pump 15, and when the refrigerant flows through the second heat exchange flow channel of the first heat exchanger 2, the refrigerant can exchange heat with the refrigerant flowing in the first heat exchange flow channel of the first heat exchanger 2, the refrigerant can heat the refrigerant, and when the heated refrigerant flows through the fourth heat exchanger 17, the heated refrigerant can heat the first electric device so as to prevent the working temperature of the first electric device from being too low and affecting the normal working of the first electric device.

In some exemplary embodiments, as shown in FIG. 1, the thermal management system further comprises: a second heat exchange assembly comprising a third pump 16 and a fifth heat exchanger 18 exchanging heat with a second electrical device, and a control valve 19

And (5) connection.

As shown in fig. 9, the control valve 19 is configured to control the third pump 16, the fifth heat exchanger 18, and the radiator 12 to be connected to form a second electric device heat dissipation circuit to dissipate heat of the second electric device by the radiator 12.

When the second electric device (such as a motor and/or an electric control device) needs to be cooled, the control device can enable the third pump 16, the fifth heat exchanger 18 and the radiator 12 to be communicated to form a second electric device cooling circuit, the refrigerating medium can circulate in the second electric device cooling circuit under the power action of the third pump 16, heat exchange can be performed with the second electric device when the refrigerating medium flows through the fifth heat exchanger 18, heat of the second electric device can be absorbed by the refrigerating medium, cooling of the second electric device is achieved, and heat exchange can be performed with ambient air when the refrigerating medium flows through the radiator 12, so that heat can be emitted to the environment.

The second heat exchange assembly is matched with the radiator 12, so that the heat dissipation and the temperature reduction of the second electric device are realized, and the over-high temperature of the second electric device is prevented, the working reliability is prevented, and the service life is prolonged.

In some exemplary embodiments, as shown in fig. 7 and 8, the control valve 19 is configured to control the third pump 16, the fifth heat exchanger 18, the second pump 15, the fourth heat exchange flow channel, and the fourth heat exchanger 17 to be connected to form a waste heat recovery heating circuit, so as to heat the first electrical device by using the fourth heat exchanger 17 or heat exchange the refrigerant in the fourth heat exchange flow channel and the third heat exchange flow channel.

The first heat exchange assembly and the second heat exchange assembly are both connected with the control valve 19, so that the third pump 16, the fifth heat exchanger 18, the second pump 15, the fourth heat exchange flow passage and the fourth heat exchanger 17 can be communicated to form a waste heat recovery heating loop through adjusting the control valve 19, and the secondary refrigerant can flow in the waste heat recovery heating loop under the power action of the second pump 15 and/or the third pump 16. As shown in fig. 8, the secondary refrigerant can exchange heat with the second electric device when flowing through the fifth heat exchanger 18, and can absorb the heat of the second electric device to recover the waste heat of the second electric device, and can exchange heat with the first electric device when flowing through the fourth heat exchanger 17, so as to realize heating and heat preservation of the first electric device, and prevent the temperature of the first electric device from being too low and affecting the operation of the first electric device; or as shown in fig. 7, the secondary refrigerant can exchange heat with the second electric device when flowing through the fifth heat exchanger 18 and can exchange heat with the first electric device when flowing through the fourth heat exchanger 17 so as to recover the waste heat of the second electric device and the first electric device, and the secondary refrigerant can exchange heat with the refrigerant in the third heat exchange flow passage of the third heat exchanger 8 when flowing through the fourth heat exchange flow passage of the third heat exchanger 8 so as to heat the refrigerant, and at the moment, the refrigerant refrigerating circuit and the passenger cabin heating circuit can be operated simultaneously so as to realize the heat transferred to the secondary refrigerant in the passenger cabin heating circuit and the passenger cabin heating circuit

And heating the cabin.

By forming a waste heat recovery heating loop, the first electric device can be heated and insulated by using the waste heat of the second electric device; or the waste heat recovery heating loop is matched with the refrigerant refrigerating loop and the passenger cabin heating loop, so that the passenger cabin is heated by utilizing the waste heat of the second electric device and the first electric device.

In some exemplary embodiments, as shown in fig. 1 and 13, the control valve 19 is an eight-way valve that includes a spool and eight ports, first port a through eighth port h, respectively.

One end of a channel formed by connecting the first pump 14, the second heat exchange flow channel and the second heat exchanger 6 is connected with the first valve port a, and the other end of the channel is simultaneously connected with the second valve port b and the third valve port c; one end of a channel formed by connecting the second pump 15, the fourth heat exchange flow channel and the fourth heat exchanger 17 is connected with the fourth valve port d, and the other end is connected with the fifth valve port e; one end of the radiator 12 is connected with the sixth valve port f, and the other end is connected with the seventh valve port g; one end of a passage formed by connecting the third pump 16 and the fifth heat exchanger 18 is connected to one end of the radiator 12 near the seventh valve port g, and the other end is connected to the eighth valve port h.

The valve core can move and can enable the eight-way valve to be in different states, as shown in fig. 14, the eight-way valve can be in a first state that a first valve port a is communicated with an eighth valve port h, a second valve port b is communicated with a sixth valve port f, and a fourth valve port d is communicated with a fifth valve port e; or as shown in fig. 15, the eight-way valve may be in a second state in which the first valve port a communicates with the second valve port b, the fourth valve port d communicates with the fifth valve port e, and the sixth valve port f communicates with the eighth valve port h; or as shown in fig. 16, the eight-way valve may be in a third state in which the first valve port a communicates with the fifth valve port e, the third valve port c communicates with the fourth valve port d, and the sixth valve port f communicates with the eighth valve port h; alternatively, as shown in fig. 17, the eight-way valve may be in a fourth state in which the first port a communicates with the second port b, the fourth port d communicates with the eighth port h, and the fifth port e communicates with the seventh port g.

The eight-way valve has eight ports and a movable valve core is disposed in the eight-way valve, e.g., the valve core may include a rotatable valve plate. The change of the on-off state between the eight valve ports can be realized through the movement of the valve core, so that the switching of various states of the eight-way valve can be realized. Wherein the eight-way valve may have four states:

As shown in fig. 14, in the first state, the first port a of the eight-way valve communicates with the eighth port h, the second port b communicates with the sixth port f, and the fourth port d communicates with the fifth port e. As shown in fig. 2-4, 10 and 12, through the communication between the first valve port a and the eighth valve port h and the communication between the second valve port b and the sixth valve port f, the connection among the first pump 14, the second heat exchange flow channel, the second heat exchanger 6, the radiator 12, the third pump 16 and the fifth heat exchanger 18 can be realized to form a refrigerant heat dissipation loop; as shown in fig. 3 and 4, the fourth valve port d is communicated with the fifth valve port e, so that the second pump 15, the fourth heat exchange flow passage of the third heat exchanger 8 and the fourth heat exchanger 17 can be connected to form a first electric device refrigeration circuit.

As shown in fig. 15, in the second state, the first port a and the second port b of the eight-way valve communicate, the fourth port d and the fifth port e communicate, and the sixth port f and the eighth port h communicate. As shown in fig. 5 and 11, through the communication between the first valve port a and the second valve port b, the connection among the first pump 14, the second heat exchange flow passage of the first heat exchanger 2 and the second heat exchanger 6 can be realized to form a passenger cabin heating loop; through the communication between the fourth valve port d and the fifth valve port e, the connection between the second pump 15, the fourth heat exchange flow passage of the third heat exchanger 8 and the fourth heat exchanger 17 can be realized to form a first electric device refrigeration loop; as shown in fig. 9, the third pump 16, the fifth heat exchanger 18, and the radiator 12 are connected to form a second electric device heat dissipation circuit by communication of the sixth valve port f and the eighth valve port h.

As shown in fig. 16, in the third state, the first port a of the eight-way valve communicates with the fifth port e, the third port c communicates with the fourth port d, and the sixth port f communicates with the eighth port h. As shown in fig. 16, through the communication between the first valve port a and the fifth valve port e and the communication between the third valve port c and the fourth valve port d, the first pump 14, the second heat exchange flow channel of the first heat exchanger 2, the second heat exchanger 6, the second pump 15, the fourth heat exchange flow channel of the third heat exchanger 8 and the fourth heat exchanger 17 can be connected to form a first electric device heating loop; through the communication between the sixth valve port f and the eighth valve port h, the third pump 16, the fifth heat exchanger 18 and the radiator 12 can be connected to form a second electric device heat dissipation loop.

As shown in fig. 17, in the fourth state, the first port a and the second port b of the eight-way valve communicate, the fourth port d and the eighth port h communicate, and the fifth port e and the seventh port g communicate. As shown in fig. 7, through the communication between the first valve port a and the second valve port b, the connection between the first pump 14, the second heat exchange flow channel of the first heat exchanger 2 and the second heat exchanger 6 can be realized to form a passenger cabin heating loop; as shown in fig. 7 and 8, through the communication between the fourth valve port d and the eighth valve port h and the communication between the fifth valve port e and the seventh valve port g, the connection between the fourth heat exchange flow channel of the third pump 16, the fifth heat exchanger 18, the second pump 15 and the third heat exchanger 8 and the fourth heat exchanger 17 can be realized to form a waste heat recovery heating circuit.

Through setting up eight-way valve, carried out integrated intercommunication to each return circuit, saved cost and installation space.

In some exemplary embodiments, as shown in fig. 1, the heat pump air conditioning system further comprises a regenerator, a first channel 3A of which is connected to an end of the first heat exchanger 2 remote from the compressor 1, and a second channel 3B of which is connected to the pressure

The intake side of the compressor 1.

In some exemplary embodiments, as shown in fig. 1, the heat pump air conditioning system further includes a gas-liquid separator 13, and the gas-liquid separator 13 is connected to the gas inlet side of the compressor 1. Wherein the second channel 3B of the regenerator may be arranged between the gas-liquid separator 13 and the inlet of the compressor 1.

In some exemplary embodiments, the first heat exchanger 2 and/or the third heat exchanger 8 may be plate heat exchangers; and/or the second heat exchanger 6 may be a warm air core; and/or the first, second and/or third throttles 4, 9, 7 may be electronic expansion valves.

The embodiment of the application also provides a thermal management control method which is applied to the thermal management system provided by any embodiment. As shown in fig. 18, the thermal management control method includes:

S102: determining a target working mode of the thermal management system;

S104: and controlling the controlled components of the thermal management system to enable the thermal management system to work in the target working mode.

Wherein the controlled component comprises: a compressor 1, a first throttle 4, a second throttle 9 and a shut-off valve 10; the target operation modes include: a passenger compartment cooling mode and a passenger compartment heating mode.

When the thermal management system is controlled, a target working mode of the thermal management system can be determined according to a received user instruction (such as an instruction for heating, refrigerating or dehumidifying the passenger cabin, and the like); or in a vehicle including the thermal management system, the target operating mode of the thermal management system may be determined based on a detected operating state of some component of the vehicle (e.g., temperature of the first electrical device, temperature of the second electrical device, whether or not the off-board heat exchanger 11 is frosted, etc.). After determining the target operating mode of the thermal management system, the controlled component (typically an electrical device) of the thermal management system may be controlled to operate the thermal management system in the target operating mode.

Such as: when receiving the instruction for cooling the passenger cabin sent by the user, the target working mode of the thermal management system is the passenger cabin cooling mode, and at this time, the first throttling element 4 can be controlled to be in a throttling state, the stop valve 10 is in a communicating state, the second throttling element 9 is in a closing state, a throttling state or a completely opening state, so that the compressor 1, the first heat exchanger 2, the first throttling element 4, the cabin heat exchanger 5 and the stop valve 10 of the heat pump air conditioning system are connected to form a refrigerant cooling loop, as shown in fig. 2. The refrigerant can evaporate and absorb heat when flowing through the cabin heat exchanger 5 so as to realize the refrigerating function of the passenger cabin.

Such as: when receiving the instruction for heating the passenger cabin sent by the user, the target working mode of the thermal management system is the passenger cabin heating mode, and at this time, the first throttling element 4 can be controlled to be in a completely opened state, the second throttling element 9 is in a throttling state, and the stop valve 10 is in a disconnected state, so that the compressor 1, the first heat exchanger 2, the first throttling element 4, the in-cabin heat exchanger 5, the second throttling element 9 and the out-of-cabin heat exchanger 11 of the heat pump air conditioning system are connected to form a refrigerant heating loop, as shown in fig. 5. The refrigerant can release heat when flowing through the cabin heat exchanger 5 so as to realize the heating function of the passenger cabin.

In some exemplary embodiments, where the thermal management system includes a heat pump air conditioning system, a passenger compartment heating assembly, a radiator 12, and a control valve 19, the controlled components further include a first pump 14 and a control valve 19.

Based thereon, controlling the controlled component of the thermal management system to operate the thermal management system in the target operating mode includes:

controlling the controlled component based on the target working mode as a passenger cabin refrigerating mode to enable the thermal management system to operate the refrigerant refrigerating loop and the refrigerant radiating loop;

And controlling the controlled component based on the target working mode to enable the thermal management system to operate the refrigerant heating loop and the passenger cabin heating loop.

In the case where the thermal management system includes a heat pump air conditioning system, a passenger compartment heating assembly, a radiator 12, and a control valve 19, the controlled components of the compressor 1, the first throttle 4, the second throttle 9, the shut-off valve 10, and the control valve 19 may be controlled so that the thermal management system can operate in a passenger compartment cooling mode or a passenger compartment heating mode, or other target operating modes. When the thermal management system needs to work in the passenger cabin refrigeration mode, as shown in fig. 2, the controlled component can be controlled to enable the thermal management system to operate the refrigerant refrigeration loop and the refrigerant heat dissipation loop, at the moment, the refrigerant evaporation of the cabin heat exchanger 5 can be utilized to absorb the heat of the air in the cabin, so that the passenger cabin is refrigerated, and the absorbed heat is dissipated through the radiator 12; when the thermal management system needs to work in the passenger cabin heating mode, as shown in fig. 5, the controlled component can be controlled to enable the thermal management system to operate the refrigerant heating loop and the passenger cabin heating loop, and at the moment, the in-cabin heat exchanger 5 can be used for heating in-cabin air once, and the second heat exchanger 6 can be used for heating in-cabin air secondarily, so that the passenger cabin is heated.

In some exemplary embodiments, where the thermal management system further comprises at least one of a first heat exchange assembly and a second heat exchange assembly, and/or the heat pump air conditioning system further comprises a third leg, the controlled component further comprises at least one of: a third throttle 7, a second pump 15, a third pump 16; the target operating mode further includes at least one of: the system comprises a first electric device refrigeration mode, a first electric device and passenger cabin simultaneous refrigeration mode, a first electric device heating mode, a first electric device and passenger cabin simultaneous heating mode, a waste heat recovery heating mode, a waste heat insulation first electric device mode, a second electric device heat dissipation mode, a passenger cabin refrigeration and dehumidification mode, a passenger cabin heating and dehumidification mode and an outdoor heat exchanger defrosting mode.

Based on this, controlling the controlled component of the thermal management system to operate the thermal management system in the target operating mode further comprises at least one of:

As shown in fig. 3, the controlled component is controlled based on the target operation mode being the first electric device cooling mode, so that the thermal management system operates the refrigerant cooling circuit, the refrigerant heat dissipation circuit and the first electric device cooling circuit;

as shown in fig. 4, the controlled component is controlled based on the target operation mode being a simultaneous cooling mode of the first electric device and the passenger compartment, so that the thermal management system operates the refrigerant cooling circuit, the refrigerant heat dissipation circuit and the first electric device cooling circuit;

As shown in fig. 6, the controlled component is controlled based on the target operation mode being the first electric device heating mode or being the first electric device and the passenger compartment heating mode simultaneously, so that the thermal management system operates the refrigerant heating circuit and the first electric device heating circuit;

As shown in fig. 7, the controlled components are controlled based on the target operation mode being the waste heat recovery heating mode, so that the thermal management system operates the refrigerant cooling circuit, the passenger compartment heating circuit and the waste heat recovery heating circuit;

as shown in fig. 8, the controlled component is controlled based on the target operation mode being the waste heat insulation first electric device mode, so that the thermal management system operates the waste heat recovery heating loop;

As shown in fig. 9, the controlled component is controlled based on the target operating mode being the second electric device heat dissipation mode, such that the thermal management system operates the second electric device heat dissipation loop;

As shown in fig. 10, the controlled component is controlled based on the target operation mode being the passenger cabin cooling and dehumidifying mode, so that the thermal management system operates the refrigerant cooling circuit and the refrigerant heat dissipation circuit;

As shown in fig. 11, the controlled components are controlled based on the target operation mode being the passenger compartment heating and dehumidifying mode, so that the thermal management system operates the refrigerant cooling circuit and the passenger compartment heating circuit;

as shown in fig. 12, the controlled components are controlled to operate the refrigerant cooling circuit and the refrigerant heat dissipating circuit of the thermal management system based on the target operation mode being the outdoor heat exchanger defrost mode.

As shown in fig. 3, when the thermal management system needs to operate in the first electric device cooling mode, the controlled component can be controlled to make the thermal management system operate the refrigerant cooling circuit, the refrigerant heat dissipation circuit and the first electric device cooling circuit, and at this time, the heat of the refrigerating medium transferred from the first electric device to the first electric device cooling circuit can be absorbed by using the refrigerant evaporation of the third heat exchanger 8, so as to realize the cooling of the first electric device, and the heat dissipation of the refrigerant is performed by the radiator 12 in the refrigerant heat dissipation circuit.

As shown in fig. 4, when the thermal management system needs to operate in the mode of simultaneous cooling of the first electric device and the passenger cabin, the controlled component can be controlled to make the thermal management system operate the refrigerant cooling circuit, the refrigerant heat dissipation circuit and the first electric device cooling circuit, at this time, a part of the refrigerant can flow through the cabin heat exchanger 5 and evaporate in the cabin heat exchanger 5 to absorb heat of air in the cabin, so as to realize cooling of the passenger cabin; the other part of refrigerant can flow through the third heat exchanger 8 and evaporate in the third heat exchanger 8 to absorb the heat of the refrigerant transferred to the refrigerating circuit of the first electric device by the first electric device, so as to realize the refrigeration of the first electric device; the cold may be dissipated by the heat sink 12 in the coolant loop.

As shown in fig. 6, when the thermal management system needs to operate in the first electric device heating mode or needs to operate in the first electric device and the passenger cabin heating mode, the controlled component can be controlled to enable the thermal management system to operate the refrigerant heating circuit and the first electric device heating circuit, and at this time, the cabin air can be heated once by the cabin heat exchanger 5 and secondarily by the second heat exchanger 6, so as to heat the passenger cabin; the heating of the first electrical device may be achieved by heating the first electrical device with the fourth heat exchanger 17.

As shown in fig. 7, when the thermal management system needs to work in the heat recovery heating mode, the controlled component can be controlled to make the thermal management system operate the refrigerant cooling circuit, the passenger cabin heating circuit and the heat recovery heating circuit, so that the heat recovery heating circuit absorbs the waste heat of the first electric device and the second electric device and transfers the waste heat to the refrigerant in the refrigerant cooling circuit, and the heat of the refrigerant is transferred to the passenger cabin heating circuit, so that the passenger cabin is heated by the second heat exchanger 6.

As shown in fig. 8, when the thermal management system needs to operate in the heat-preserving mode of the first electric device, the controlled component can be controlled to enable the thermal management system to operate the heat-recovering heating circuit so as to absorb the waste heat of the second electric device through the fifth heat exchanger 18 and heat and preserve the heat of the first electric device through the fourth heat exchanger 17.

As shown in fig. 9, when the thermal management system needs to operate in the second electric device heat dissipation mode, the controlled component may be controlled to enable the thermal management system to operate the second electric device heat dissipation circuit to dissipate heat of the second electric device through the heat sink 12.

As shown in fig. 10, when the thermal management system needs to work in the passenger cabin refrigeration and dehumidification mode, the controlled component can be controlled to enable the thermal management system to operate the refrigerant refrigeration loop and the refrigerant heat dissipation loop, at the moment, the heat of the air in the passenger cabin can be absorbed by utilizing the evaporation of the refrigerant of the in-cabin heat exchanger 5, so that the passenger cabin can be refrigerated, and meanwhile, the water vapor in the air in the passenger cabin can be condensed into small liquid drops, so that the passenger cabin can be dehumidified; the refrigerant can radiate heat through the radiator 12.

As shown in fig. 11, when the thermal management system needs to work in the passenger cabin heating and dehumidifying mode, the controlled component can be controlled to make the thermal management system operate the refrigerant refrigerating circuit and the passenger cabin heating circuit, and at the moment, the refrigerant evaporation of the cabin heat exchanger 5 can be utilized to absorb the heat of the cabin air, so that the water vapor in the cabin air can be condensed into small liquid drops, and the passenger cabin is dehumidified; and the second heat exchanger 6 is utilized to heat the air in the cabin so as to heat the passenger cabin. It will be appreciated that the heat of the cabin air absorbed by the cabin heat exchanger 5 is less than the heat released to the cabin air by the second heat exchanger 6, and therefore heating and dehumidification of the passenger cabin can be achieved.

As shown in fig. 12, when the thermal management system needs to operate in the defrosting mode of the outdoor heat exchanger, the controlled component can be controlled to make the thermal management system operate the refrigerant cooling circuit and the refrigerant heat dissipation circuit, at this time, the heat of the refrigerant can be transferred to the coolant in the refrigerant heat dissipation circuit through the first heat exchanger 2, and the heat emitted by the radiator 12 is utilized to heat and defrost the outdoor heat exchanger 11.

In some exemplary embodiments, where the thermal management system further includes an electronic fan 20 and a blower 21, the controlled components further include the electronic fan 20 and the blower 21. When the thermal management system needs to operate in the target operating mode such that the in-cabin heat exchanger 5 and/or the second heat exchanger 6 need to exchange heat with in-cabin air, the blower 21 may be activated; the electronic fan 20 may be turned on when the outdoor heat exchanger 11 needs to exchange heat and/or the radiator 12 needs to dissipate heat.

Table 1 below illustrates the principle of operation and the course of operation of the thermal management system.

TABLE 1

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The embodiment of the application also provides a thermal management control device, which comprises a processor and a memory storing a computer program, wherein the processor realizes the steps of the thermal management control method provided by any embodiment when executing the computer program.

The processor may be an integrated circuit chip with signal processing capabilities. The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, abbreviated as CPU), a network processor (Network Processor, abbreviated as NP), etc.; the methods, steps and logic blocks disclosed in the embodiments of the present invention may also be implemented or performed in a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. A general purpose processor may be a microprocessor, or the processor may be any conventional processor or the like.

The embodiment of the application also provides a computer program product, which comprises a computer program, and the computer program realizes the steps of the thermal management control method provided by any embodiment when being executed by a processor.

The embodiment of the application also provides a non-transitory computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed by a processor to realize the thermal management control method provided by any embodiment.

The embodiment of the application also provides a vehicle, which comprises the thermal management system and the thermal management control device provided by any one of the embodiments, so that the vehicle has all the beneficial effects of any one of the embodiments, and the description is omitted herein.

In some exemplary embodiments, the vehicle further comprises a first electrical device that is a battery and a second electrical device that includes an electric motor and/or an electronic control device.

Of course, the first electric device and the second electric device are not limited to a battery, a motor, an electric control device, but may be other electric devices.

In some exemplary embodiments, the vehicle is an electric vehicle or a hybrid vehicle.

In summary, in the heat management system provided by the embodiment of the application, the heat pump air conditioning system is provided with the three throttling pieces and the one stop valve to realize no reversing of the refrigerant loop, so that the outdoor heat exchanger is only used as an evaporator, the condensation performance of the outdoor heat exchanger is not considered in design, the energy efficiency can be greatly improved, the architecture of the heat pump air conditioning system is simple, and the failure rate is reduced; the heat generated by the refrigerant side is transported to each heat exchanger through the pump and the refrigerating medium, and is subjected to heat exchange with the corresponding cold source/heat source, so that a semi-indirect system architecture is realized, and the system is applicable to refrigerants and refrigerating mediums with various physical properties; the coolant side uses one eight-way valve, and the integrated communication of each coolant loop can be realized through the switching of different positions and states, so that various heat management functions are realized, the integration degree is greatly improved, and the cost and the installation space are reduced.

The thermal management system provided by the embodiment can simultaneously perform thermal management on the passenger cabin, the motor and/or the electric control device, the battery and the like, and realize various thermal management working modes; when the passenger cabin is heated, double-core heating can be performed, high-temperature and high-pressure refrigerants are conveyed in the heat exchanger in the cabin, and high-temperature secondary refrigerants are conveyed in the second heat exchanger, so that air can be heated twice, and the energy efficiency is improved.

In the description of the present invention, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

In any one or more of the exemplary embodiments described above, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium, and executed by a hardware-based processing unit. The computer-readable medium may comprise a computer-readable storage medium corresponding to a tangible medium, such as a data storage medium, or a communication medium that facilitates transfer of a computer program from one place to another, such as according to a communication protocol. In this manner, a computer-readable medium may generally correspond to a non-transitory tangible computer-readable storage medium or a communication medium such as a signal or carrier wave. Data storage media may be any available media that can be accessed by one or more computers or one or more processors to retrieve instructions, code and/or data structures for implementing the techniques described in this disclosure. The computer program product may include a computer-readable medium.

By way of example, and not limitation, such computer-readable storage media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, flash memory, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer. Moreover, any connection may also be termed a computer-readable medium, for example, if the instructions are transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. It should be appreciated, however, that computer-readable storage media and data storage media do not include connection, carrier wave, signal, or other transitory (transient) media, but are instead directed to non-transitory tangible storage media. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, digital Versatile Disc (DVD), floppy disk or blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

For example, the logic may be implemented by, for example, one or more Digital Signal Processors (DSPs), general purpose microprocessors, application specific integrated circuits

One or more processors, such as a field programmable logic array (FPGA) or other equivalent integrated or discrete logic circuitry, may be used to execute instructions. Thus, the term "processor" as used herein may refer to any of the foregoing structure or any other structure suitable for implementation of the techniques described herein. Additionally, in some aspects, the functionality described herein may be provided within dedicated hardware and/or software modules configured for encoding and decoding, or incorporated in a combined codec. Also, the techniques may be fully implemented in one or more circuits or logic elements.

The technical solutions of the embodiments of the present disclosure may be implemented in a wide variety of devices or apparatuses, including wireless handsets, integrated Circuits (ICs), or a set of ICs (e.g., a chipset). Various components, modules, or units are described in this disclosure to emphasize functional aspects of devices configured to perform the described techniques, but do not necessarily require realization by different hardware units. Rather, as described above, the various units may be combined in a codec hardware unit or provided by a collection of interoperable hardware units (including one or more processors as described above) in combination with suitable software and/or firmware.

Claims

1. A thermal management system, comprising:

2. The thermal management system of claim 1, wherein,

The first heat exchanger comprises a first heat exchange flow passage and a second heat exchange flow passage, the first heat exchange flow passage is a refrigerant flow passage connected with the compressor, and the first pump, the second heat exchange flow passage and the second heat exchanger are connected to form a passenger cabin heating loop so as to heat the passenger cabin by using the second heat exchanger.

3. The thermal management system of claim 2, wherein said radiator and said passenger compartment heating assembly are both connected to said control valve,

The control valve is arranged to control the passenger cabin heating circuit to be communicated and disconnected with the radiator; or controlling the first pump, the second heat exchange flow channel, the second heat exchanger and the radiator to be connected to form a refrigerant heat dissipation loop so as to dissipate heat by the radiator or heat and defrost the outdoor heat exchanger.

4. The thermal management system of claim 3, wherein the heat pump air conditioning system further comprises: a third branch formed by a third throttling element and a third heat exchanger which are connected in series, wherein the first throttling element and the heat exchanger in the cabin form a fourth branch, and the third branch is connected in parallel with the fourth branch;

The compressor, the first heat exchanger, the third throttling element, the third heat exchanger and the stop valve are connected to form a refrigerant cooling loop so as to cool the first electric device by utilizing the refrigerant in the third heat exchanger.

5. The thermal management system of claim 4, further comprising:

a first heat exchange assembly comprising a second pump and a fourth heat exchanger for exchanging heat with the first electric device,

The third heat exchanger comprises a third heat exchange flow passage and a fourth heat exchange flow passage, the third heat exchange flow passage is used for forming the refrigerant cooling loop, and the second pump, the fourth heat exchange flow passage and the fourth heat exchanger are connected to form a first electric device refrigerating loop so as to cool a first electric device by using the fourth heat exchanger.

6. The thermal management system of claim 5, wherein the first heat exchange assembly is coupled to the control valve;

The control valve is arranged to control the passenger cabin heating circuit to be communicated and disconnected with the first heat exchange assembly; or controlling the first electric device refrigeration loop to be communicated and disconnected with the passenger cabin heating component; or controlling the first pump, the second heat exchange flow channel, the second heat exchanger, the second pump, the fourth heat exchange flow channel and the fourth heat exchanger to be connected to form a first electric device heating loop so as to heat the first electric device by using the fourth heat exchanger.

7. The thermal management system of claim 6, further comprising:

the second heat exchange component comprises a third pump and a fifth heat exchanger which exchanges heat with a second electric device, and is connected with the control valve,

The control valve is arranged to control the third pump, the fifth heat exchanger and the radiator to be connected to form a second electric device radiating loop so as to radiate heat of the second electric device by using the radiator.

8. The thermal management system of claim 7, wherein the control valve is configured to control the third pump, the fifth heat exchanger, the second pump, the fourth heat exchange flow passage, and the fourth heat exchanger to connect to form a waste heat recovery heating circuit to heat the first electrical device with the fourth heat exchanger or to exchange heat with the refrigerant in the third heat exchange flow passage with the fourth heat exchange flow passage.

9. The thermal management system of claim 8, wherein one end of a channel formed by the connection of the first pump, the second heat exchange flow channel and the second heat exchanger is connected with the first valve port, and the other end is connected with the second valve port and the third valve port simultaneously; one end of a channel formed by connecting the second pump, the fourth heat exchange flow channel and the fourth heat exchanger is connected with a fourth valve port, and the other end of the channel is connected with a fifth valve port; one end of the radiator is connected with the sixth valve port, and the other end of the radiator is connected with the seventh valve port; one end of a channel formed by connecting the third pump and the fifth heat exchanger is connected with one end of the radiator, which is close to the seventh valve port, and the other end of the channel is connected with the eighth valve port;

The valve core is movable, and the eight-way valve can be in a first state that the first valve port is communicated with the eighth valve port, the second valve port is communicated with the sixth valve port, and the fourth valve port is communicated with the fifth valve port; or the eight-way valve is in a second state that the first valve port is communicated with the second valve port, the fourth valve port is communicated with the fifth valve port, and the sixth valve port is communicated with the eighth valve port; or the eight-way valve is in a third state that the first valve port is communicated with the fifth valve port, the third valve port is communicated with the fourth valve port, and the sixth valve port is communicated with the eighth valve port; or the eight-way valve is in a fourth state that the first valve port is communicated with the second valve port, the fourth valve port is communicated with the eighth valve port, and the fifth valve port is communicated with the seventh valve port.

10. A thermal management control method applied to the thermal management system according to any one of the preceding claims 1 to 9, the thermal management control method comprising:

determining a target working mode of the thermal management system;

11. The thermal management control method of claim 10, wherein the thermal management system is the thermal management system of claim 3, the controlled component further comprising a first pump and a control valve;

the controlling the controlled component of the thermal management system to operate the thermal management system in the target operating mode includes:

Controlling the controlled component based on the target working mode being a passenger cabin refrigerating mode, so that the thermal management system operates a refrigerant refrigerating loop and a refrigerant radiating loop;

And controlling the controlled component based on the target working mode to be a passenger cabin heating mode, so that the thermal management system operates a refrigerant heating loop and a passenger cabin heating loop.

12. The thermal management control method according to claim 11, wherein the thermal management system is any one of claims 4 to 9, the controlled component further comprising at least one of: a third throttling element, a second pump and a third pump; the target operating mode further includes at least one of: the system comprises a first electric device refrigeration mode, a first electric device and passenger cabin simultaneous refrigeration mode, a first electric device heating mode, a first electric device and passenger cabin simultaneous heating mode, a waste heat recovery heating mode, a waste heat insulation first electric device mode, a second electric device heat dissipation mode, a passenger cabin refrigeration and dehumidification mode, a passenger cabin heating and dehumidification mode and an outdoor heat exchanger defrosting mode;

The controlling the controlled component of the thermal management system to operate the thermal management system in the target operating mode further comprises at least one of:

controlling the controlled component based on the target working mode being a first electric device refrigeration mode, so that the thermal management system operates a refrigerant cooling loop, a refrigerant heat dissipation loop and a first electric device refrigeration loop;

Controlling the controlled component based on the target working mode being a simultaneous cooling mode of the first electric device and the passenger cabin, so that the thermal management system operates a refrigerant cooling loop, a refrigerant heat dissipation loop and a first electric device cooling loop;

Controlling the controlled component based on the target working mode being a first electric device heating mode or a first electric device and passenger cabin simultaneous heating mode, so that the thermal management system runs a refrigerant heating loop and a first electric device heating loop;

Controlling the controlled component based on the target working mode as a waste heat recovery heating mode, so that the thermal management system runs a refrigerant cooling loop, a passenger cabin heating loop and a waste heat recovery heating loop;

Controlling the controlled component based on the target working mode as a first electric device mode for heat preservation of waste heat, so that the heat management system runs a waste heat recovery heating loop;

controlling the controlled component based on the target working mode being a second electric device radiating mode, so that the thermal management system operates a second electric device radiating loop;

controlling the controlled component based on the target working mode as a passenger cabin refrigerating and dehumidifying mode, so that the thermal management system operates a refrigerant refrigerating loop and a refrigerant radiating loop;

Controlling the controlled component based on the target working mode as a passenger cabin heating and dehumidifying mode, so that the thermal management system operates a refrigerant refrigerating loop and a passenger cabin heating loop;

and controlling the controlled component based on the target working mode being an outdoor heat exchanger defrosting mode, so that the thermal management system operates a refrigerant cooling loop and a refrigerant heat dissipation loop.

13. A thermal management control device comprising a processor and a memory storing a computer program, the processor implementing the steps of the thermal management control method according to any one of claims 10 to 12 when executing the computer program.

14. A non-transitory computer readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the thermal management control method according to any one of claims 10 to 12.

15. A vehicle comprising a thermal management system according to any one of the preceding claims 1 to 9 and a thermal management control device according to claim 13.