CN117922243A - Vehicle thermal management system and vehicle - Google Patents

Abstract

The invention discloses a vehicle thermal management system and a vehicle, wherein the system comprises: a warm air assembly for providing warm air to the vehicle; and the controller is used for controlling the warm air component to assist in heat dissipation of the battery and/or the electric drive component under the condition that the battery and/or the electric drive component of the vehicle needs to dissipate heat. The system of the invention can quickly reduce the temperature of the battery and/or the electric drive assembly, and improves the heat dissipation capacity of the whole vehicle.

Description

Vehicle thermal management system and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a vehicle thermal management system and a vehicle.

Background

With the high-speed development of new energy automobiles, the heat dissipation performance of the battery or the motor is more and more important, and the performance of the vehicle can be better maintained through the rapid heat dissipation of the battery or the motor.

In the related art, heat dissipation of a battery or a motor is only performed through an outdoor environment, the heat dissipation capacity is poor and single, for example, when the battery is in a super-charged working condition, the temperature of the battery is still high, the heat dissipation performance of the battery is insufficient, and when a vehicle runs, the temperature of the battery or the motor is high, so that the vehicle is not beneficial to maintaining running under the optimal performance.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present invention is to provide a vehicle thermal management system, in which a warm air component is used for providing warm air for a vehicle, and a controller is used for controlling the warm air component to perform auxiliary heat dissipation on a battery and/or an electric drive component of the vehicle under the condition that the battery and/or the electric drive component of the vehicle need to dissipate heat, so that the temperature of the battery and/or the electric drive component can be quickly reduced, and the heat dissipation capability of the whole vehicle is improved.

A second object of the invention is to propose a vehicle.

To achieve the above object, an embodiment of a first aspect of the present invention provides a vehicle thermal management system, including: a warm air assembly for providing warm air to the vehicle; and the controller is used for controlling the warm air component to conduct auxiliary heat dissipation on the battery and/or the electric drive component under the condition that the battery and/or the electric drive component of the vehicle needs heat dissipation.

According to the vehicle thermal management system provided by the embodiment of the invention, the warm air component is used for providing warm air for the vehicle, and the controller is used for controlling the warm air component to conduct auxiliary heat dissipation on the battery and/or the electric drive component under the condition that the battery and/or the electric drive component of the vehicle needs heat dissipation. Therefore, the system can quickly reduce the temperature of the battery and/or the electric drive assembly, and improves the heat dissipation capacity of the whole vehicle.

In addition, the vehicle thermal management system according to the above embodiment of the invention may have the following additional technical features:

According to one embodiment of the invention, the system further comprises: the device comprises a heat pump loop connected with the warm air component, a battery heat exchange component which is arranged corresponding to the battery and connected with the heat pump loop, an electric drive heat exchange component which is arranged corresponding to the electric drive component and connected with the heat pump loop, and an environment heat exchange component connected with the heat pump loop; wherein the controller is further configured to: under the condition that the battery needs to dissipate heat, controlling the heat pump loop, the battery heat exchange assembly and the environment heat exchange assembly to conduct main heat dissipation on the battery; under the condition that the electric drive assembly needs to dissipate heat, controlling the electric drive heat exchange assembly and the environment heat exchange assembly to conduct main heat dissipation on the electric drive assembly; and under the condition that the battery and the electric drive assembly need to dissipate heat, controlling the heat pump loop, the battery heat exchange assembly, the electric drive heat exchange assembly and the environment heat exchange assembly to conduct main heat dissipation on the battery and the electric drive assembly.

According to one embodiment of the invention, the heat pump circuit comprises: the system comprises a compressor, a first on-off valve, a first heat exchanger, a first throttling element, a first water pump, a second on-off valve, a second water pump and a third on-off valve, wherein an exhaust port of the compressor is connected with a first end of the first on-off valve, a second end of the first on-off valve is connected with a first end of the first heat exchanger, a second end of the first heat exchanger is sequentially connected with a third end of the first on-off valve through the first throttling element and the battery heat exchange assembly, a fourth end of the first on-off valve is connected with a return air port of the compressor, a third end of the first heat exchanger is sequentially connected with a third end of the second on-off valve through the electric drive heat exchange assembly, the first water pump, the first end and the second end of the second on-off valve, the first end and the second end of the third on-off valve, the second water pump is connected with a fourth end of the first heat exchanger, the third end of the first heat exchanger is further connected with a third end of the second on-off valve through the environment heat exchange assembly, and the third end of the third heat exchanger is further connected with a third on-off valve through the third on-off valve; wherein, the controller is specifically used for: under the condition that the battery needs to dissipate heat, the first end and the second end of the first on-off valve, the third end and the fourth end of the first on-off valve are controlled to be communicated, the second end and the third end of the second on-off valve are controlled to be communicated, the first end, the second end and the third end of the third on-off valve are controlled to be communicated, and the first throttling element, the second water pump and the compressor are controlled to be in an open state; under the condition that the electric drive assembly needs to dissipate heat, the first end, the second end and the third end of the second on-off valve are controlled to be communicated, the first end and the third end of the third on-off valve are controlled to be communicated, and the first water pump is controlled to be in an on state; under the condition that the battery and the electric drive assembly need to dissipate heat, the first end and the second end of the first on-off valve, the third end and the fourth end of the first on-off valve, the first end, the second end and the third end of the second on-off valve, the first end, the second end and the third end of the third on-off valve are controlled to be communicated, and the first throttling element, the first water pump, the second water pump and the compressor are controlled to be in an open state.

According to one embodiment of the invention, the warm air component is arranged in an outer circulation air duct of the vehicle, and an outer circulation fan is further arranged in the outer circulation air duct; the controller is further used for controlling the air inlet and the first air outlet of the external circulation air duct to be in an opening state and controlling the external circulation fan to be in an opening state so as to transfer heat of the battery and/or the electric drive assembly absorbed by the warm air assembly to a front cabin of the vehicle.

According to one embodiment of the invention, the warm air component is arranged in an outer circulation air duct of the vehicle, an outer circulation fan is further arranged in the outer circulation air duct, the vehicle further comprises an inner circulation air duct, and an inner circulation fan is arranged in the inner circulation air duct; wherein the controller is further configured to: the first end and the second end of the second on-off valve are controlled to be communicated, the first end and the third end of the third on-off valve are controlled to be communicated, the first water pump is controlled to be in an on state, heat of the electric drive assembly is transmitted to the warm air assembly through the electric drive heat exchange assembly, the air inlet and the second air outlet of the outer circulation air channel are controlled to be in an on state, the first air inlet and the first air outlet of the inner circulation air channel are controlled to be in an on state, and the outer circulation fan and the inner circulation fan are controlled to be in an on state, so that heat of the electric drive assembly absorbed by the warm air assembly is transmitted to a passenger cabin of the vehicle.

According to one embodiment of the invention, the controller is further configured to: the first end and the third end of the first on-off valve are controlled to be communicated, the second end and the fourth end of the first on-off valve are controlled to be communicated, the second end and the third end of the second on-off valve are controlled to be communicated, the first end and the second end of the third on-off valve are controlled to be communicated, and the first throttling element, the second water pump and the compressor are controlled to be in an opening state so as to heat the battery through environmental heat; or the first end and the third end of the first on-off valve, the second end and the fourth end of the first on-off valve, the first end, the second end and the third end of the second on-off valve, the first end and the second end of the third on-off valve are controlled to be communicated, and the first throttling element, the second water pump, the first water pump and the compressor are controlled to be in an opening state so as to heat the battery through environmental heat and heat of the electric drive assembly.

According to one embodiment of the invention, the heat pump loop further comprises a second heat exchanger and a second throttling element, the second end of the first heat exchanger is further connected with the third end of the first on-off valve sequentially through the second throttling element and the second heat exchanger, the vehicle further comprises an inner circulation air duct, and an inner circulation fan is arranged in the inner circulation air duct; wherein the controller is further configured to: the first end, the second end and the fourth end of the first on-off valve are controlled to be communicated, the first end, the second end and the third end of the second on-off valve are controlled to be communicated, the first end and the second end of the third on-off valve are controlled to be communicated, the first air inlet and the second air outlet of the internal circulation air duct are controlled to be in an opening state, and the first throttling element, the second throttling element, the compressor and the internal circulation fan are controlled to be in an opening state so as to cool the battery, the electric driving assembly and the passenger cabin of the vehicle.

According to one embodiment of the invention, the controller is further configured to: and when the temperature of the battery is higher than a first preset temperature threshold value and/or the current change rate of the battery is higher than the first preset current change rate threshold value, determining that the battery needs to dissipate heat.

According to one embodiment of the invention, the controller is further configured to: and when the temperature of the electric drive component is higher than a second preset temperature threshold value and/or the current change rate of the electric drive component is higher than a second preset current change rate threshold value, determining that the electric drive component needs to dissipate heat.

To achieve the above object, a second aspect of the present invention provides a vehicle, including the above-mentioned vehicle thermal management system.

According to the vehicle provided by the embodiment of the invention, the temperature of the battery and/or the electric drive assembly can be quickly reduced by the vehicle thermal management system, and the heat dissipation capacity of the whole vehicle is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a block schematic diagram of a vehicle thermal management system according to an embodiment of the invention;

FIG. 2 is a schematic illustration of a vehicle thermal management system according to one embodiment of the invention;

Fig. 3 is a block schematic diagram of a vehicle according to an embodiment of the invention.

Reference numerals:

a vehicle thermal management system 100;

A warm air assembly 110; an outer circulation duct 111; an external circulation fan 112; an air inlet 113 of the external circulation air duct; a first air outlet 114 of the outer circulation duct; a second air outlet 115 of the outer circulation duct; an inner circulation duct 116; an internal circulation fan 117; a first air inlet 118 of the internal circulation duct; a first air outlet 119a of the inner circulation duct; a second air outlet 119b of the inner circulation duct;

A controller 120;

A heat pump circuit 130; a compressor 131; a first on-off valve 132; a first heat exchanger 133; a first throttling element 134; a first water pump 135; a second on-off valve 136; a second water pump 137; a third on-off valve 138; a second heat exchanger 139; a second throttling element 140;

An electric drive assembly 160;

an ambient heat exchange assembly 170;

A battery 180;

Vehicle 200.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

The following describes a vehicle thermal management system and a vehicle according to an embodiment of the present invention with reference to the accompanying drawings.

FIG. 1 is a block schematic diagram of a vehicle thermal management system according to an embodiment of the invention.

As shown in fig. 1, the vehicle thermal management system 100 may include: a warm air assembly 110 and a controller 120.

Wherein the warm air assembly 110 is used to provide warm air to the vehicle. The controller 120 is configured to control the warm air assembly 110 to perform auxiliary heat dissipation on the battery 180 and/or the electric drive assembly 160 when the battery 180 and/or the electric drive assembly 160 of the vehicle needs to dissipate heat.

Specifically, the warm air assembly 110 may be used to provide warm air to the vehicle, for example, when the temperature of the passenger compartment is low, warm air may be provided to the vehicle by the warm air assembly 110 such that the temperature of the passenger compartment is elevated. In addition, in the case where the battery 180 of the vehicle needs to dissipate heat, not only the temperature of the battery 180 may be dissipated to the outdoor environment, but also the battery 180 may be assisted to dissipate heat by controlling the warm air assembly 110, that is, the heat generated by the battery 180 may be utilized by the warm air assembly 110, and the heat generated by the battery 180 may be used to provide warm air to the vehicle by the warm air assembly 110 to assist in dissipating heat from the battery 180. For example, the heat generated by the battery 180 may be used to heat the passenger compartment of the vehicle, and may also be used to heat the front cabin of the vehicle, for example, to ensure that the operating components in the front cabin are not affected by too low an outdoor ambient temperature.

In the case that the electric drive assembly 160 of the vehicle needs to dissipate heat, not only the temperature of the electric drive assembly 160 can be dissipated to the outdoor environment, but also the electric drive assembly 160 can be controlled to dissipate heat in an auxiliary manner by controlling the warm air assembly 110, that is, the heat generated by the electric drive assembly 160 can be utilized by the warm air assembly 110, and the heat generated by the electric drive assembly 160 can be used for providing warm air for the vehicle by the warm air assembly 110 to dissipate heat in an auxiliary manner for the electric drive assembly 160. For example, the device can be used for heating the passenger cabin of the vehicle, and for example, the temperature of the interior of the front cabin of the vehicle can be raised, so that the normal operation of all the components in the front cabin can not be influenced by the fact that the temperature of the outdoor environment is too low.

In the case where both the battery 180 and the electric driving assembly 160 need to dissipate heat, not only the temperatures of the battery 180 and the electric driving assembly 160 can be dissipated to the outdoor environment, but also the battery 180 and the electric driving assembly 160 can be controlled to dissipate heat in an auxiliary manner by controlling the warm air assembly 110, that is, the heat generated by the battery 180 and the electric driving assembly 160 can be utilized by the warm air assembly, and the heat generated by the battery 180 and the electric driving assembly 160 can be used for providing warm air to the vehicle by the warm air assembly 110 so as to dissipate heat in an auxiliary manner to the battery 180 and the electric driving assembly 160. For example, the device can be used for heating the passenger cabin of a vehicle, and for example, the device can also be used for heating the interior of the front cabin of the vehicle so as to ensure that all operating components in the front cabin cannot influence the normal operation of all the components due to excessively low outdoor environment temperature.

Therefore, the temperature of the battery 180 and/or the electric drive assembly 160 can be quickly reduced by controlling the warm air assembly 110 to perform auxiliary heat dissipation on the battery 180 or the electric drive assembly 160 or by controlling the warm air assembly 110 to perform auxiliary heat dissipation on the battery 180 and the electric drive assembly 160, and the heat dissipation capacity of the whole vehicle is improved.

According to one embodiment of the present invention, as shown in FIG. 2, the vehicle thermal management system 100 further includes: a heat pump circuit 130 connected to the warm air module 110, a battery heat exchange module 150 (not shown) disposed corresponding to the battery 180 and connected to the heat pump circuit 130, an electric drive heat exchange module 190 (not shown) disposed corresponding to the electric drive module 160 and connected to the heat pump circuit 130, and an environment heat exchange module 170 connected to the heat pump circuit 130; wherein the controller 120 is further configured to: in the case that the battery 180 needs to dissipate heat, the heat pump circuit 130, the battery heat exchange assembly 150 and the environment heat exchange assembly 170 are controlled to perform main heat dissipation on the battery 180; in the case that the electric drive assembly 160 needs to dissipate heat, the electric drive heat exchange assembly 190 and the environment heat exchange assembly 170 are controlled to perform main heat dissipation on the electric drive assembly 160; in the case where the battery 180 and the electric drive assembly 160 require heat dissipation, the heat pump circuit 130, the battery heat exchange assembly 150, the electric drive heat exchange assembly 190, and the environmental heat exchange assembly 170 are controlled to primarily dissipate heat from the battery 180 and the electric drive assembly 160.

Specifically, the battery heat exchange assembly 150 is disposed corresponding to the battery 180 and is connected to the heat pump circuit 130, and can exchange heat with the battery 180 through the battery heat exchange assembly 150, so that the battery 180 can be cooled through the battery heat exchange assembly 150 when the temperature of the battery 180 is high, and the battery 180 can be warmed through the battery heat exchange assembly 150 when the temperature of the battery 180 is low. The electric drive heat exchange assembly 190 is arranged corresponding to the electric drive assembly 160 and is connected with the heat pump loop 130, heat exchange can be carried out on the electric drive assembly 160 through the electric drive heat exchange assembly 190, when the temperature of the electric drive assembly 160 is higher, the electric drive assembly 160 can be cooled through the electric drive heat exchange assembly 190, and when the temperature of the electric drive assembly 160 is lower, the temperature of the electric drive assembly 160 can be raised through the electric drive heat exchange assembly 190. The environment heat exchange assembly 170 is connected with the heat pump circuit 130, and can exchange heat in the heat pump circuit 130 with the outdoor environment through the environment heat exchange assembly 170, so that heat in the outdoor environment can be absorbed or released into the outdoor environment.

In the case that the battery 180 needs to dissipate heat, the controller 120 can control the heat pump circuit 130, the battery heat exchange assembly 150 and the environment heat exchange assembly 170 to dissipate heat of the battery 180, that is, the current battery 180 has a higher temperature, the battery heat exchange assembly 150 can absorb heat of the battery 180 and transfer the heat to the environment heat exchange assembly 170 through the heat pump circuit 130, and the environment heat exchange assembly 170 releases heat of the battery 180 to the outdoor environment, so that heat dissipation of the battery 180 is achieved.

In the case that the electric driving component 160 needs to dissipate heat, the controller 120 can control the electric driving heat exchange component 190 and the environment heat exchange component 170 to dissipate heat of the electric driving component 160, that is, when the temperature of the electric driving component 160 is high, the electric driving heat exchange component 190 can absorb heat of the electric driving component 160 and the environment heat exchange component 170 releases heat of the electric driving component 160 to the outdoor environment, so as to dissipate heat of the electric driving component 160.

In the case that the heat dissipation is needed by the battery 180 and the electric drive assembly 160, the heat pump circuit 130, the battery heat exchange assembly 150, the electric drive heat exchange assembly 190 and the environment heat exchange assembly 170 can be controlled by the controller 120 to conduct main heat dissipation on the battery 180 and the electric drive assembly 160 at the same time, that is, the current temperature of the battery 180 and the temperature of the electric drive assembly 160 are high, the heat of the battery 180 can be absorbed by the battery heat exchange assembly 150 and transferred to the environment heat exchange assembly 170 through the heat pump circuit 130, the heat of the battery 180 is released to the outdoor environment through the environment heat exchange assembly 170, so that the heat dissipation of the battery 180 is achieved, the heat of the electric drive assembly 160 is absorbed through the electric drive heat exchange assembly 190, and the heat of the electric drive assembly 160 is released to the outdoor environment through the environment heat exchange assembly 170, so that the heat dissipation of the electric drive assembly 160 is achieved.

According to one embodiment of the present invention, as shown in fig. 2, the heat pump circuit 130 includes: the air outlet of the compressor 131 is connected with the first end of the first on-off valve 132, the second end of the first on-off valve 132 is connected with the first end of the first heat exchanger 133, the second end of the first heat exchanger 133 is connected with the third end of the first on-off valve 132 sequentially through the first throttling element 134 and the battery heat exchange assembly 150, the fourth end of the first on-off valve 132 is connected with the air return port of the compressor 131, the third end of the first heat exchanger 133 is connected with the third end of the third on-off valve 136 sequentially through the electric drive heat exchange assembly 190, the first water pump 135, the first end and the second end of the second on-off valve 136, the first end and the second end of the third on-off valve 138, the second water pump 137 and the fourth end of the first heat exchanger 133, the third end of the first heat exchanger 133 is also connected with the third end of the third on-off valve 136 through the environment heat exchange assembly 170, and the third end of the first heat exchanger 133 is also connected with the third end of the third on-off valve 136 through the warm air break assembly 110; wherein, the controller 120 specifically is used for: in the case that the battery 180 needs to dissipate heat, the first end and the second end of the first on-off valve 132, the third end and the fourth end of the first on-off valve are controlled to be communicated, the second end and the third end of the second on-off valve 136 are controlled to be communicated, the first end, the second end and the third end of the third on-off valve 138 are controlled to be communicated, and the first throttling element 134, the second water pump 137 and the compressor 131 are controlled to be in an opened state; in the case that the electric drive assembly 160 needs to dissipate heat, the first end, the second end and the third end of the second on-off valve 136 are controlled to be communicated, the first end and the third end of the third on-off valve 138 are controlled to be communicated, and the first water pump 135 is controlled to be in an on state; in case that the battery 180 and the electric driving assembly 160 require heat dissipation, the first and second ends, the third and fourth ends of the first on-off valve 132, the first and second ends, the third end of the second on-off valve 136, the first, second and third ends of the third on-off valve 138 are controlled to be communicated, and the first throttling element 134, the first water pump 135, the second water pump 137 and the compressor 131 are controlled to be in an on state.

Specifically, when the temperature of the battery 180 is high and heat dissipation is required, the controller 120 can control the first end and the second end of the first on-off valve 132 to be communicated, and control the third end and the fourth end of the first on-off valve 132 to be communicated, and control the first throttling element 134 and the compressor 131 to be in an open state, so that the refrigerant flows to the compressor 131 after passing through the compressor 131, the first on-off valve 132, the first heat exchanger 133, the first throttling element 134, the battery heat exchange assembly 150 and the first on-off valve 132, and the refrigerant absorbs the heat of the battery 180 in the battery heat exchange assembly 150 to dissipate the heat of the battery 180. And the second end and the third end of the second on-off valve 136 are controlled to be communicated, the first end, the second end and the third end of the third on-off valve 138 are controlled to be communicated by the controller 120, and the second water pump 137 is controlled to be in an on state, so that the cooling liquid flows to the first heat exchanger 133 after passing through the first heat exchanger 133, the environment heat exchange assembly 170, the second on-off valve 136, the third on-off valve 138 and the second water pump 137, and flows to the first heat exchanger 133 after passing through the first heat exchanger 133, the warm air assembly 110, the third on-off valve 138 and the second water pump 137, thereby enabling heat released from the refrigerant in the first heat exchanger 133 to be absorbed by the cooling liquid and released to the outdoor environment after passing through the environment heat exchange assembly 170.

When the temperature of the electric drive assembly 160 is high and heat dissipation is required, the controller 120 can control the first end, the second end and the third end of the second break valve 136 to be communicated, the first end and the third end of the third break valve 138 to be communicated, and control the first water pump 135 to be in an on state, so that the cooling liquid flows in the electric drive heat exchange assembly 190, the environment heat exchange assembly 170, the second break valve 136 and the first water pump 135, and the cooling liquid flows in the electric drive heat exchange assembly 190, the environment heat exchange assembly 170, the second break valve 136 and the warm air assembly 110, and the electric drive heat exchange assembly 190 can absorb the heat of the electric drive assembly 160 and release the heat to the outdoor environment through the environment heat exchange assembly 170.

Under the condition that the temperatures of the battery 180 and the electric drive assembly 160 are both higher and heat dissipation is required, the controller 120 can control the first end and the second end of the first on-off valve 132 to be communicated, control the third end and the fourth end of the first on-off valve 132 to be communicated, and control the first throttling element 134 and the compressor 131 to be in an open state, so that the refrigerant flows to the compressor 131 after passing through the compressor 131, the first on-off valve 132, the first heat exchanger 133, the first throttling element 134, the battery heat exchange assembly 150 and the first on-off valve 132, and therefore the refrigerant absorbs the heat of the battery 180 in the battery heat exchange assembly 150 to dissipate the heat of the battery 180. And the second end and the third end of the second cut-off valve 136 are controlled to be communicated, the first end, the second end and the third end of the third cut-off valve 138 are controlled to be communicated through the controller 120, and the second water pump 137 is controlled to be in an open state, the cooling liquid flows to the first heat exchanger 133 after passing through the first heat exchanger 133, the environment heat exchange assembly 170, the second cut-off valve 136, the third cut-off valve 138 and the second water pump 137, and flows to the first heat exchanger 133 after passing through the first heat exchanger 133, the warm air assembly 110, the third cut-off valve 138 and the second water pump 137, so that the heat released by the refrigerant in the first heat exchanger 133 is absorbed by the cooling liquid and released to the outdoor environment through the environment heat exchange assembly 170, and the first end, the second end and the third end of the second cut-off valve 136 are controlled to be communicated through the controller 120, and the first water pump 135 is controlled to be in an open state, so that the cooling liquid circulates in the electric drive heat exchange assembly 190, the environment heat exchange assembly 170, the second cut-off valve 136, the first water pump 135 and the heat can be absorbed by the heat drive assembly 110, and the heat can be released to the environment assembly 160.

According to one embodiment of the present invention, as shown in fig. 2, the warm air assembly 110 is disposed in an outer circulation duct 111 of the vehicle, and an outer circulation fan 112 is further disposed in the outer circulation duct 111; the controller 120 is further configured to control the air inlet 113 and the first air outlet 114 of the external circulation air duct to be in an on state, and control the external circulation fan 112 to be in an on state, so as to transfer the heat of the battery 180 and/or the electric drive assembly 160 absorbed by the warm air assembly 110 to the front cabin of the vehicle.

Specifically, the warm air assembly 110 is disposed in the external circulation air duct 111 of the vehicle, and the external circulation air duct 111 is further provided with the external circulation fan 112, and by disposing the external circulation air fan 112 in the front cabin, the passenger cabin is only provided with the air outlet, so that noise and vibration in the passenger cabin can be reduced, and user comfort is improved. Meanwhile, the outer circulation fan 112 is arranged in the front cabin, so that occupied space in the passenger cabin can be reduced, and the space utilization rate of the passenger cabin can be improved.

The air inlet 113 and the first air outlet 114 of the external circulation air channel can be opened or closed, and the controller 120 can control the air inlet 113 and the first air outlet 114 of the external circulation air channel to be in an opened state or a closed state. When the air inlet 113 of the external circulation duct is in an open state, air of the outdoor environment may enter the front cabin. When the warm air assembly 110 is controlled to perform auxiliary heat dissipation on the battery 180, the electric drive assembly 160 or both the battery 180 and the electric drive assembly 160, the controller 120 can control the air inlet 113 of the external circulation air duct to be in an open state and control the external circulation fan 112 to be in an open state, so that air in an outdoor environment can be continuously blown to the warm air assembly 110, and as the warm air assembly 110 absorbs heat of the battery 180, or absorbs heat of the electric drive assembly 160, or simultaneously absorbs heat of the battery 180 and the electric drive assembly 160, the temperature of the current warm air assembly 110 is higher, when the temperature of the outdoor environment with lower temperature is absorbed, heat exchange can be performed on cooling liquid with higher temperature in the warm air assembly 110, and the controller 120 can control the first air outlet 114 to be in an open state so as to blow out hot air after heat exchange through the first air outlet 114, so that heat of the battery 180 or the electric drive assembly 160 absorbed by the warm air assembly 110, or heat of the battery 180 and the electric drive assembly 180 can be transferred to a front cabin of a vehicle, and when the temperature of the electric drive assembly 160 or the battery 180 and the electric drive assembly 180 is absorbed.

According to one embodiment of the present invention, as shown in fig. 2, the warm air assembly 110 is disposed in an outer circulation duct 111 of the vehicle, an outer circulation fan 112 is further disposed in the outer circulation duct 111, the vehicle further includes an inner circulation duct 116, and an inner circulation fan 117 is disposed in the inner circulation duct 116; wherein the controller 120 is further configured to: the first end and the second end of the second on-off valve 136 are controlled to be communicated, the first end and the third end of the third on-off valve 138 are controlled to be communicated, and the first water pump 135 is controlled to be in an on state so as to transfer heat of the electric drive assembly 160 to the warm air assembly 110 through the electric drive heat exchange assembly 190, the air inlet 113 and the second air outlet 115 of the outer circulation duct are controlled to be in an on state, the first air inlet 118 and the first air outlet 119a of the inner circulation duct are controlled to be in an on state, and the outer circulation fan 112 and the inner circulation fan 117 are controlled to be in an on state so as to transfer heat of the electric drive assembly 160 absorbed by the warm air assembly 110 to a passenger cabin of the vehicle.

Specifically, the warm air assembly 110 is disposed in the outer circulation duct 111 of the vehicle, and the outer circulation duct 111 is further provided with an outer circulation fan 112, and the vehicle further includes an inner circulation duct 116, the inner circulation duct 116 is provided with an inner circulation fan 117, and by disposing the outer circulation fan 112 and the inner circulation fan 117 in the front cabin, the passenger cabin is provided with only an air outlet, noise and vibration in the passenger cabin can be reduced, and user comfort is improved. Meanwhile, the outer circulation fan 112 and the inner circulation fan 117 are arranged in the front cabin, so that occupied space in the passenger cabin can be reduced, and the space utilization rate of the passenger cabin can be improved.

When the temperature of the electric drive assembly 160 is too high, the waste heat generated by the electric drive assembly 160 can be transferred to the warm air assembly 110, and the heat of the electric drive assembly 160 absorbed by the warm air assembly 110 is transferred to the passenger cabin of the vehicle for heating the passenger cabin, so that the waste of the heat can be avoided, and the temperature in the passenger cabin is improved. When transferring the heat of the electric drive assembly 160 to the passenger cabin, the controller 120 may control the first end and the second end of the second on-off valve 136 to be communicated and the first end and the third end of the third on-off valve 138 to be communicated, and control the first water pump 135 to be in an on state, so that the cooling liquid passes through the electric drive heat exchange assembly 190, the warm air assembly 110, the third on-off valve 138, the second on-off valve 136, and the first water pump 135 and returns to the electric drive heat exchange assembly 190, so as to transfer the heat of the electric drive assembly 160 to the warm air assembly 110 through the electric drive heat exchange assembly 190.

In order to transfer the heat of the electric drive assembly 160 from the warm air assembly 110 to the passenger compartment, the controller 120 may control the air inlet 113 and the second air outlet 115 of the outer circulation air duct 111 to be in an opened state, the first air inlet 118 and the first air outlet 119a of the inner circulation air duct to be in an opened state, and control the outer circulation fan 112 and the inner circulation fan 117 to be in an opened state, so as to transfer the heat of the electric drive assembly 160 absorbed by the warm air assembly 110 to the passenger compartment of the vehicle by exchanging heat with the cooling liquid with higher temperature in the warm air assembly 110 after the outdoor ambient air and the vehicle air enter the outer circulation air duct 111 and the inner circulation air duct 116.

According to one embodiment of the present invention, as shown in FIG. 2, the controller 120 is further configured to: the first end and the third end of the first on-off valve 132, the second end and the fourth end of the second on-off valve 136, the second end and the third end of the third on-off valve 138, and the first throttling element 134, the second water pump 137 and the compressor 131 are controlled to be in an opened state so as to heat the battery 180 by ambient heat; or the first end and the third end of the first on-off valve 132, the second end and the fourth end of the second on-off valve 136, the first end and the third end of the second on-off valve 138, and the first end and the second end of the third on-off valve 138 are controlled to be in an opened state, and the first throttling element 134, the second water pump 137, the first water pump 135 and the compressor 131 are controlled to heat the battery 180 by the ambient heat and the heat of the electric driving assembly 160.

Specifically, when the temperature of the battery 180 is low and heating is required, the controller 120 can control the first end and the third end of the first on-off valve 132 to be communicated, the second end and the fourth end of the first on-off valve 132 to be communicated, the second end and the third end of the second on-off valve 136 to be communicated, and the first end and the second end of the third on-off valve 138 to be communicated, and then the first throttling element 134, the second water pump 137 and the compressor 131 to be in an open state, so that the low-temperature refrigerant can absorb heat in the cooling liquid through the first heat exchanger 133 and enter the compressor 131, work is performed through the compressor 131, and the refrigerant can be changed into high-temperature and high-pressure refrigerant to enter the battery heat exchange assembly 150, namely, the refrigerant returns to the air inlet of the compressor 131 through the air outlet of the compressor 131, the first on-off valve 132, the first throttling element 134, the first heat exchanger 133 and the first on-off valve 132, thereby the battery 180 can release heat to the battery 180, and the temperature of the battery 180 is increased, so that the ambient heat is heated to the battery 180. The first heat exchanger 133 may be a water-cooled heat exchanger, and when the outdoor ambient temperature is higher, the temperature of the cooling liquid is higher, and the cooling liquid circulates in the ambient heat exchange component 170, the first on-off valve 132, the second on-off valve 136, and the water-cooled heat exchanger, so that heat exchange can be performed between the water-cooled heat exchanger and the refrigerant with a lower temperature.

In addition, when the heat of the electric driving assembly 160 is large, not only the battery 180 may be heated by using the ambient heat, but also the battery 180 may be simultaneously heated by the ambient heat and the heat of the electric driving assembly 160. For example, the controller 120 may control the first end and the third end of the first on-off valve 132 to communicate with each other, and the second end and the fourth end of the first on-off valve 132 to communicate with each other, and control the first end and the second end of the second on-off valve 136 to communicate with each other, and control the first end and the second end of the third on-off valve 138 to communicate with each other, and control the first throttling element 134, the second water pump 137, the first water pump 135 and the compressor 131 to be in an open state, so that the low-temperature refrigerant can absorb heat in the cooling liquid through the first heat exchanger 133 to enter the compressor 131, and work of the compressor 131 is performed to change the refrigerant into the high-temperature and high-pressure refrigerant to enter the battery heat exchange assembly 150, that is, the refrigerant passes through the compressor 131 exhaust port, the first on-off valve 132, the battery heat exchange assembly 150, the first throttling element 134, the first heat exchanger 133 and the air inlet of the compressor 131, so that the battery 180 can release heat through the battery heat exchange assembly 150 to the battery 180, thereby increasing the temperature of the battery 180, and realizing heating of the battery 180 by the ambient heat and the heat of the electric drive assembly 160. The first heat exchanger 133 may be a water-cooled heat exchanger, and when the outdoor ambient temperature is higher and the temperature of the electric driving component 160 is higher, the temperature of the cooling liquid is higher, the cooling liquid circulates in the ambient heat exchanging component 170, the first on-off valve 132, the second on-off valve 136, and the water-cooled heat exchanger, and circulates in the electric driving heat exchanging component 190, the ambient heat exchanging component 170, and the first on-off valve 132, so that heat exchange with the refrigerant with a lower temperature can be performed in the water-cooled heat exchanger.

According to one embodiment of the present invention, as shown in fig. 2, the heat pump circuit 130 further includes a second heat exchanger 139 and a second throttling element 140, the second end of the first heat exchanger 133 is further connected to the third end of the first on-off valve 132 through the second throttling element 140 and the second heat exchanger 139 in sequence, the vehicle further includes an inner circulation air duct 116, and an inner circulation fan 117 is disposed in the inner circulation air duct 116; wherein the controller 120 is further configured to: the first end and the second end of the first on-off valve 132, the third end and the fourth end of the second on-off valve 136, the first end and the second end of the second on-off valve 138, and the first end and the second end of the third on-off valve 119b are controlled to be in an opened state, and the first throttling element 134, the second throttling element 140, the compressor 131 and the inner circulation fan 117 are controlled to be in an opened state, so as to cool the battery 180, the electric driving assembly 160 and the passenger compartment of the vehicle.

Specifically, when the temperature of the battery 180, the electric drive assembly 160, or the passenger compartment of the vehicle is high, the first end and the second end of the first on-off valve 132 can be controlled to be communicated by the controller 120, the third end and the fourth end of the first on-off valve 132 can be controlled to be communicated, and the first throttling element 134 and the compressor 131 are controlled to be in an open state, so that the refrigerant can return to the compressor 131 again after passing through the compressor 131, the first on-off valve 132, the first heat exchanger 133, the first throttling element 134, the battery heat exchange assembly 150, and the first on-off valve 132, and the refrigerant evaporates and absorbs the heat of the battery 180 in the battery heat exchange assembly 150, so that the temperature of the battery 180 can be reduced, and the heat can be dissipated to the first heat exchanger 133 through the refrigerant cycle.

The first end, the second end and the third end of the second on-off valve 136 are controlled to be communicated by the controller 120, and the first end and the second end of the third on-off valve 138 are controlled to be communicated, so that cooling liquid can circulate in a loop formed by the electric drive heat exchange assembly 190, the environment heat exchange assembly 170 and the second on-off valve 136, and heat generated by the electric drive assembly 160 can be emitted to the outdoor environment through the environment heat exchange assembly 170 to cool the electric drive assembly 160. In addition, when the battery 180 is cooled, the heat released by the refrigerant in the first heat exchanger 133 can enable the cooling liquid to absorb the heat in the first heat exchanger 133, and the heat is dissipated to the outdoor environment through the environment heat exchange component 170 by the waterway circulation, that is, the cooling liquid can be in the first heat exchanger 133, the environment heat exchange component 170, the second on-off valve 136 and the third on-off valve 138. Wherein the ambient heat exchange assembly 170 may be a heat sink.

The first end and the second end of the first on-off valve 132 are controlled to be communicated through the controller 120, the third end and the fourth end of the first on-off valve 132 are controlled to be communicated, the compressor 131 and the second throttling element 140 are controlled to be in an opening state, the internal circulation fan 117 is controlled to be in an opening state, the first air inlet 118 and the second air outlet 119b of the internal circulation air duct are controlled to be in an opening state, the refrigerant can return to the compressor 131 again after passing through the compressor 131, the first on-off valve 132, the first heat exchanger 133, the second throttling element 140, the second heat exchanger 139 and the first on-off valve 132, the refrigerant evaporates in the second heat exchanger 139 to absorb surrounding heat, namely, after the air in the passenger cabin is cooled through the evaporator, the air enters the passenger cabin of the vehicle through the blowing surface or the foot blowing air port, and thus the cooling function of the passenger cabin is realized, wherein the second heat exchanger 139 can be the evaporator.

According to one embodiment of the present invention, as shown in FIG. 2, the controller 120 is further configured to: when the temperature of the battery 180 is higher than the first preset temperature threshold and/or the current change rate of the battery 180 is higher than the first preset current change rate threshold, it is determined that the battery 180 needs to dissipate heat. The first preset temperature threshold may be determined according to an actual situation, and the first preset current change rate threshold may be determined according to an actual situation.

Specifically, the controller 120 may determine whether the heat dissipation of the battery 180 is required, based on the temperature of the battery 180 or the current change rate of the battery 180 or both the temperature of the battery 180 and the current change rate of the battery 180. For example, comparing the temperature of the battery 180 with the first preset temperature threshold, the first preset temperature threshold may be 40 degrees celsius, and when the temperature of the battery 180 is higher than 40 degrees celsius, it is indicated that the temperature of the battery 180 is higher, and if the battery 180 is in a high temperature state for a long time, the service life of the battery 180 will be affected, so it may be determined that the battery 180 needs to dissipate heat.

For another example, comparing the current change rate of the battery 180 with the first preset current change rate threshold value, when the current change rate of the battery 180 is higher than the first preset current change rate threshold value, it is indicated that the current vehicle may be rapidly accelerated or decelerated, the current change rate of the battery 180 is larger, and the heat generated instantaneously is more, so that it can be determined that the battery 180 needs to dissipate heat.

As another example, comparing the temperature of the battery 180 with the first preset temperature threshold, and comparing the current change rate of the battery 180 with the first preset current change rate threshold, when the temperature of the battery 180 is higher than 40 degrees celsius and the current change rate of the battery 180 is higher than the first preset current change rate threshold, it is indicated that the current vehicle may be rapidly accelerated or rapidly decelerated, more heat is generated, and the temperature of the battery 180 is higher, and if the battery 180 is in a high temperature state for a long time, the life of the battery 180 will be affected, so it may be determined that the battery 180 needs to dissipate heat.

According to one embodiment of the present invention, as shown in FIG. 2, the controller 120 is further configured to: when the temperature of the electric drive assembly 160 is above the second preset temperature threshold and/or the rate of change of the current of the electric drive assembly 160 is above the second preset current rate of change threshold, it is determined that the electric drive assembly 160 requires heat dissipation. The second preset temperature threshold may be determined according to an actual situation, and the second preset current change rate threshold may be determined according to an actual situation.

Specifically, the controller 120 may determine whether the electric drive assembly 160 requires heat dissipation according to the temperature of the electric drive assembly 160 or the current change rate of the electric drive assembly 160 or both the temperature of the electric drive assembly 160 and the current change rate of the electric drive assembly 160. For example, comparing the temperature of the electric drive assembly 160 with a second preset temperature threshold, the second preset temperature threshold may be 70 degrees celsius, and when the temperature of the electric drive assembly 160 is higher than 70 degrees celsius, it is indicated that the temperature of the electric drive assembly 160 is higher, and if the electric drive assembly 160 is in a high temperature state for a long time, the service life of the electric drive assembly 160 will be affected, so it may be determined that the electric drive assembly 160 needs to dissipate heat.

For another example, comparing the current change rate of the electric drive assembly 160 with the second preset current change rate threshold value, when the current change rate of the electric drive assembly 160 is higher than the second preset current change rate threshold value, it is indicated that the current vehicle may be rapidly accelerated or decelerated, the current change rate of the electric drive assembly 160 is larger, and the heat generated instantaneously is more, so that it can be determined that the electric drive assembly 160 needs to dissipate heat.

For another example, comparing the temperature of the electric drive assembly 160 with the second preset temperature threshold, and comparing the current change rate of the electric drive assembly 160 with the second preset current change rate threshold, when the temperature of the electric drive assembly 160 is higher than 70 degrees celsius and the current change rate of the electric drive assembly 160 is higher than the second preset current change rate threshold, it is indicated that the current vehicle may be rapidly accelerated or rapidly decelerated, the generated heat is more, and the temperature of the electric drive assembly 160 is higher, and if the electric drive assembly 160 is in a high temperature state for a long time, the service life of the electric drive assembly 160 will be affected, so it may be determined that the electric drive assembly 160 needs to dissipate heat.

In summary, according to the vehicle thermal management system of the embodiment of the present invention, the warm air component is configured to provide warm air for the vehicle, and the controller is configured to control the warm air component to perform auxiliary heat dissipation on the battery and/or the electric drive component of the vehicle when the battery and/or the electric drive component needs heat dissipation. Therefore, the system can quickly reduce the temperature of the battery and/or the electric drive assembly, and improves the heat dissipation capacity of the whole vehicle.

Corresponding to the embodiment, the invention also provides a vehicle.

As shown in fig. 3, a vehicle 200 according to an embodiment of the present invention includes the vehicle thermal management system 100 described above.

According to the vehicle provided by the embodiment of the invention, the temperature of the battery and/or the electric drive assembly can be quickly reduced by the vehicle thermal management system, and the heat dissipation capacity of the whole vehicle is improved.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.

It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.

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 do not necessarily refer to the same embodiments or examples. 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 terms "first," "second," 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.

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.

Claims (10)

1. A vehicle thermal management system, the system comprising:

a warm air assembly for providing warm air to the vehicle;

And the controller is used for controlling the warm air component to conduct auxiliary heat dissipation on the battery and/or the electric drive component under the condition that the battery and/or the electric drive component of the vehicle needs heat dissipation.

2. The system of claim 1, wherein the system further comprises: the device comprises a heat pump loop connected with the warm air component, a battery heat exchange component which is arranged corresponding to the battery and connected with the heat pump loop, an electric drive heat exchange component which is arranged corresponding to the electric drive component and connected with the heat pump loop, and an environment heat exchange component connected with the heat pump loop; wherein the controller is further configured to:

under the condition that the battery needs to dissipate heat, controlling the heat pump loop, the battery heat exchange assembly and the environment heat exchange assembly to conduct main heat dissipation on the battery;

Under the condition that the electric drive assembly needs to dissipate heat, controlling the electric drive heat exchange assembly and the environment heat exchange assembly to conduct main heat dissipation on the electric drive assembly;

And under the condition that the battery and the electric drive assembly need to dissipate heat, controlling the heat pump loop, the battery heat exchange assembly, the electric drive heat exchange assembly and the environment heat exchange assembly to conduct main heat dissipation on the battery and the electric drive assembly.

3. The system of claim 2, wherein the heat pump circuit comprises: the system comprises a compressor, a first on-off valve, a first heat exchanger, a first throttling element, a first water pump, a second on-off valve, a second water pump and a third on-off valve, wherein an exhaust port of the compressor is connected with a first end of the first on-off valve, a second end of the first on-off valve is connected with a first end of the first heat exchanger, a second end of the first heat exchanger is sequentially connected with a third end of the first on-off valve through the first throttling element and the battery heat exchange assembly, a fourth end of the first on-off valve is connected with a return air port of the compressor, a third end of the first heat exchanger is sequentially connected with a third end of the second on-off valve through the electric drive heat exchange assembly, the first water pump, the first end and the second end of the second on-off valve, the first end and the second end of the third on-off valve, the second water pump is connected with a fourth end of the first heat exchanger, the third end of the first heat exchanger is further connected with a third end of the second on-off valve through the environment heat exchange assembly, and the third end of the third heat exchanger is further connected with a third on-off valve through the third on-off valve; wherein, the controller is specifically used for:

Under the condition that the battery needs to dissipate heat, the first end and the second end of the first on-off valve, the third end and the fourth end of the first on-off valve are controlled to be communicated, the second end and the third end of the second on-off valve are controlled to be communicated, the first end, the second end and the third end of the third on-off valve are controlled to be communicated, and the first throttling element, the second water pump and the compressor are controlled to be in an open state;

Under the condition that the electric drive assembly needs to dissipate heat, the first end, the second end and the third end of the second on-off valve are controlled to be communicated, the first end and the third end of the third on-off valve are controlled to be communicated, and the first water pump is controlled to be in an on state;

Under the condition that the battery and the electric drive assembly need to dissipate heat, the first end and the second end of the first on-off valve, the third end and the fourth end of the first on-off valve, the first end, the second end and the third end of the second on-off valve, the first end, the second end and the third end of the third on-off valve are controlled to be communicated, and the first throttling element, the first water pump, the second water pump and the compressor are controlled to be in an open state.

4. A system according to any one of claims 1-3, wherein the warm air assembly is disposed in an outer circulation duct of the vehicle, the outer circulation duct also being provided with an outer circulation fan; the controller is further used for controlling the air inlet and the first air outlet of the external circulation air duct to be in an opening state and controlling the external circulation fan to be in an opening state so as to transfer heat of the battery and/or the electric drive assembly absorbed by the warm air assembly to a front cabin of the vehicle.

5. The system of claim 3, wherein the warm air assembly is disposed in an outer circulation duct of the vehicle, an outer circulation fan is further disposed in the outer circulation duct, the vehicle further comprises an inner circulation duct, and an inner circulation fan is disposed in the inner circulation duct; wherein the controller is further configured to:

the first end and the second end of the second on-off valve are controlled to be communicated, the first end and the third end of the third on-off valve are controlled to be communicated, the first water pump is controlled to be in an on state, heat of the electric drive assembly is transmitted to the warm air assembly through the electric drive heat exchange assembly, the air inlet and the second air outlet of the outer circulation air channel are controlled to be in an on state, the first air inlet and the first air outlet of the inner circulation air channel are controlled to be in an on state, and the outer circulation fan and the inner circulation fan are controlled to be in an on state, so that heat of the electric drive assembly absorbed by the warm air assembly is transmitted to a passenger cabin of the vehicle.

6. The system of claim 3, wherein the controller is further configured to:

the first end and the third end of the first on-off valve are controlled to be communicated, the second end and the fourth end of the first on-off valve are controlled to be communicated, the second end and the third end of the second on-off valve are controlled to be communicated, the first end and the second end of the third on-off valve are controlled to be communicated, and the first throttling element, the second water pump and the compressor are controlled to be in an opening state so as to heat the battery through environmental heat; or alternatively

The first end and the third end of the first on-off valve, the second end and the fourth end of the second on-off valve, the first end, the second end and the third end of the second on-off valve, the first end and the second end of the third on-off valve, and the first throttling element, the second water pump, the first water pump and the compressor are controlled to be in an opening state so as to heat the battery through environmental heat and heat of the electric drive assembly.

7. The system of claim 3, wherein the heat pump circuit further comprises a second heat exchanger and a second throttling element, the second end of the first heat exchanger is further connected with the third end of the first on-off valve sequentially through the second throttling element and the second heat exchanger, the vehicle further comprises an internal circulation air duct, and an internal circulation fan is arranged in the internal circulation air duct; wherein the controller is further configured to:

The first end, the second end and the fourth end of the first on-off valve are controlled to be communicated, the first end, the second end and the third end of the second on-off valve are controlled to be communicated, the first end and the second end of the third on-off valve are controlled to be communicated, the first air inlet and the second air outlet of the internal circulation air duct are controlled to be in an opening state, and the first throttling element, the second throttling element, the compressor and the internal circulation fan are controlled to be in an opening state so as to cool the battery, the electric driving assembly and the passenger cabin of the vehicle.

8. The system of claim 1, wherein the controller is further configured to:

and when the temperature of the battery is higher than a first preset temperature threshold value and/or the current change rate of the battery is higher than the first preset current change rate threshold value, determining that the battery needs to dissipate heat.

9. The system of claim 1, wherein the controller is further configured to:

And when the temperature of the electric drive component is higher than a second preset temperature threshold value and/or the current change rate of the electric drive component is higher than a second preset current change rate threshold value, determining that the electric drive component needs to dissipate heat.

10. A vehicle comprising a vehicle thermal management system according to any one of claims 1-9.