Thermal management system and method, apparatus, controller, storage medium and vehicle

Abstract

A thermal management system and method, an apparatus, a controller, a storage medium and a vehicle. The vehicle thermal management system comprises: a drive module branch (34); a first heat dissipation branch (1), the first heat dissipation branch (1) being provided with a first heat sink (10); a second heat dissipation branch (5), the second heat dissipation branch (5) being provided with a second heat sink (50); and a first heat exchange branch (2), the first heat exchange branch (2) being provided with a first heat exchanger (20), wherein in a first heat exchange mode, the first heat dissipation branch, the drive module branch and the second heat dissipation branch are connected in series, and heat generated by a drive module is separately transferred to the outside by means of the first heat sink and the second heat sink, and, in a second heat exchange mode, the drive module branch is connected in series to one of the first heat dissipation branch and the second heat dissipation branch.

Description

Thermal management system and method, device, controller, storage medium, vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410206284.3 filed by BYD Co., Ltd. on February 23, 2024, entitled “Thermal Management System and Method, Device, Controller, Storage Medium, Vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of vehicle technology, and in particular to a thermal management system and method, device, controller, storage medium, and vehicle. Background Art

[0004] In related technologies, the vehicle's thermal management system has a complex structure. When the vehicle has multiple driving modes, it is impossible to accurately control the cooling and heating energy consumption of the thermal management system, resulting in large heat loss in the cooling circuit.

[0005] Application Contents

[0006] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] Therefore, the present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a vehicle thermal management system that can control the heat exchange mode of the thermal management system according to the vehicle's operating mode to reduce heat loss.

[0008] According to an embodiment of the first aspect of the present application, a vehicle thermal management system includes: a drive module branch, on which a drive module is provided; a first heat dissipation branch, on which a first radiator is provided; a second heat dissipation branch, on which a second radiator is provided; a first heat exchange branch, on which a first heat exchanger is provided; the thermal management system has a first heat exchange mode, and at least one of a second heat exchange mode and a third heat exchange mode; in the first heat exchange mode, the first heat dissipation branch, the drive module branch and the second heat dissipation branch are connected in series, and the heat emitted by the drive module is exchanged with the outside world through the first radiator and the second radiator respectively; in the second heat exchange mode, the drive module branch is connected in series with one of the first heat dissipation branch and the second heat dissipation branch, and the other of the first heat dissipation branch and the second heat dissipation branch is not working; in the third heat exchange mode, the drive module branch is connected in series with the first heat exchange branch, and the heat emitted by the drive module is exchanged with the air-conditioning system of the vehicle through the first heat exchanger.

[0009] According to the embodiment of the present application, the thermal management system can realize multiple mode switching of vehicle heat dissipation and heat exchange by setting a first heat dissipation branch, a second heat dissipation branch, and a first heat exchange branch, and accurately control the energy consumption of the thermal management system.

[0010] The present application also proposes a thermal management method for a vehicle.

[0011] This application also proposes a controller.

[0012] The present application also proposes a non-transitory computer-readable storage medium.

[0013] The present application also provides a vehicle control device.

[0014] The present application also proposes a vehicle.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic diagram of a thermal management system according to an embodiment of the present application;

[0017] FIG2 is a schematic diagram of a thermal management method according to an embodiment of the present application;

[0018] FIG3 is a control flow chart of a thermal management system according to an embodiment of the present application;

[0019] FIG4 is a schematic diagram of a control device according to an embodiment of the present application. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0021] A vehicle thermal management system 100 according to an embodiment of the present application will be described below with reference to FIG. 1 to FIG. 4 .

[0022] The vehicle thermal management system 100 includes: a drive module branch 34, on which a drive module 340 is provided; a first heat dissipation branch 1, on which a first radiator 10 is provided; a second heat dissipation branch 5, on which a second radiator 50 is provided; a first heat exchange branch 2, on which a first heat exchanger 20 is provided; the thermal management system has a first heat exchange mode, and at least one of a second heat exchange mode and a third heat exchange mode.

[0023] In the first heat exchange mode, the first heat dissipation branch 1, the drive module branch 34 and the second heat dissipation branch 5 are connected in series in sequence, and the heat emitted by the drive module 340 is exchanged with the outside world through the first radiator 10 and the second radiator 50 respectively; in the second heat exchange mode, the drive module branch 34 is connected in series with one of the first heat dissipation branch 1 and the second heat dissipation branch 5, and the other of the first heat dissipation branch 1 and the second heat dissipation branch 5 does not work; in the third heat exchange mode, the drive module branch 34 is connected in series with the first heat exchange branch 2, and the heat emitted by the drive module 340 is exchanged with the vehicle's air-conditioning system through the first heat exchanger 20.

[0024] Among them, the drive module 340 is the power source in the vehicle power system, which is used to output driving force. Heat will be generated during the operation of the drive module 340, so the drive module 340 needs to be cooled so that the drive module 340 can maintain an efficient working state and ensure the power performance of the entire vehicle.

[0025] The vehicle thermal management system is further provided with a first water pump 71 , which is used to drive the flow of the heat exchange medium in the thermal management system to achieve the circulation of the heat exchange medium in the cooling circuit.

[0026] In the present application, the vehicle has multiple heat exchange modes, namely, a first heat exchange mode, a second heat exchange mode, and a third heat exchange mode. In the corresponding heat exchange modes, the multiple branches (i.e., the first heat dissipation branch 1, the second heat dissipation branch 5, the first heat exchange branch 2, and the drive module branch 34) are connected in different ways.

[0027] 1 , in the first heat exchange mode, the first heat dissipation branch 1 , the driving module branch 34 and the second heat dissipation branch 5 are connected in series, and the heat generated by the driving module 340 is exchanged with the outside through the first radiator 10 and the second radiator 50 respectively.

[0028] In this heat exchange mode, the heat exchange medium is cooled by the first radiator 10 and the second radiator 50, thereby reducing the temperature of the heat exchange medium in the cooling circuit formed by the first heat dissipation branch 1, the drive module branch 34, and the second heat dissipation branch 5. This allows for efficient cooling of the drive module 340, thereby fully utilizing the power module's performance.

[0029] 1 , in the second heat exchange mode, the driving module branch 34 is connected in series with one of the first heat dissipation branch 1 and the second heat dissipation branch 5 , and the other of the first heat dissipation branch 1 and the second heat dissipation branch 5 is not working.

[0030] In this heat exchange mode, the heat exchange medium can be cooled by one of the first radiator 10 and the second radiator 50 to reduce the temperature of the heat exchange medium in the cooling circuit formed by one of the first heat dissipation branch 1 and the second heat dissipation branch 5 in series with the drive module branch 34.

[0031] 1 , in the third heat exchange mode, the drive module branch 34 is connected in series with the first heat exchange branch 2 , and the heat generated by the drive module 340 is exchanged with the vehicle's air conditioning system through the first heat exchanger 20 .

[0032] In this heat exchange mode, the heat exchange medium can transfer the heat generated by the drive module 340 to the first heat exchanger 20. The first heat exchanger 20 can exchange heat with the vehicle's air-conditioning system, thereby transferring the heat to the passenger compartment, meeting the heating needs of the passenger compartment and making full use of the heat generated by the drive module 340.

[0033] The first heat exchanger 20 may be configured as a plate heat exchanger for exchanging heat with the batteries in the battery system, thereby heating the batteries to meet the vehicle's battery heating requirements under low-temperature operating conditions.

[0034] The heat exchange medium in the thermal management system can be a liquid medium such as water. At the same time, the first radiator 10 and the second radiator 50 cool the heat exchange medium by transferring the heat of the heat exchange medium to the outside. When it is necessary to utilize the heat generated by the drive module 340, the thermal management system can be controlled to run the third heat exchange mode, connecting the first heat exchange branch 2 with the drive module branch 34, and transferring the heat to the first heat exchanger 20 through the heat exchange medium. By transferring the heat through the first heat exchanger 20, the heat generated by the drive module 340 is utilized, and the energy in the thermal management system is fully utilized while ensuring the cooling needs of the drive module 340, thereby reducing heat loss.

[0035] In related technologies, the vehicle's thermal management system has a complex structure. When the vehicle has multiple driving modes, it is impossible to accurately control the cooling and heating energy consumption of the thermal management system, resulting in large heat loss in the cooling circuit.

[0036] In the present application, the driver module 340 can be cooled by the first heat dissipation branch 1 and the second heat dissipation branch 5 to meet the cooling requirements of the driver module 340. When the cooling requirements of the driver module 340 are high, the first heat dissipation branch 1 and the second heat dissipation branch 5 can be connected to the driver module branch 34 to form a cooling loop, thereby improving the cooling efficiency of the thermal management system for the driver module 340. When the cooling requirements of the driver module 340 are relatively low, one of the first heat dissipation branch 1 and the second heat dissipation branch 5 can be connected to the driver module branch 34 to form a cooling loop to ensure the cooling effect of the driver module 340.

[0037] The first heat exchange branch 2 can be connected to the drive module branch 34 to transfer the heat of the drive module 340 to the air-conditioning system through the first heat exchanger 20, so as to make full use of the heat generated by the drive module 340, improve the energy utilization efficiency of the thermal management system, reduce energy consumption loss, and improve the endurance of the vehicle.

[0038] In some embodiments of the present application, the driving module branch 34 includes at least one of a front driving module branch 3 and a rear driving module branch 4 .

[0039] When the drive module branch 34 includes the front drive module branch 3 and the rear drive module branch 4, the front drive module branch 3 and the rear drive module branch 4 are connected in parallel. Thus, depending on the operating conditions of the drive module 340, one of the front drive module branch 3 and the rear drive module branch 4 can be selectively connected to the heat dissipation branch (the first heat dissipation branch or the second heat dissipation branch) or the first heat exchange branch.

[0040] The front drive module branch is equipped with a front drive module, and the rear drive module branch is equipped with a rear drive module. When only the front drive module is in operation, the vehicle is in front-wheel drive mode; when only the rear drive module is in operation, the vehicle is in rear-wheel drive mode; when both the front and rear drive modules are in operation, the vehicle is in four-wheel drive mode.

[0041] Thus, the front drive module 30 and the rear drive module 40 can be selectively exchanged with heat. When the front drive module 30 needs to be cooled, the front drive module branch 3 can be connected to the first heat dissipation branch 1, or the front drive module branch 3 can be connected to the first heat exchange branch 2. When the rear drive module 40 needs to be cooled, the rear drive module branch 4 can be connected to the first heat dissipation branch 1, or the rear drive module branch 4 can be connected to the first heat exchange branch 2. When the front drive module 30 and the rear drive module 40 need to be cooled, the front drive module branch 3 and the rear drive module branch 4 can be connected to the first heat dissipation branch 1, or the front drive module branch 3 and the rear drive module branch 4 can be connected to the first heat exchange branch 2. This can meet the cooling requirements of the front drive module 30 and the rear drive module 40 in the vehicle and improve the fault tolerance of the vehicle thermal management system 100.

[0042] The front drive module 30 and the rear drive module 40 can be configured as drive motors or other drive devices for outputting power. For example, both the front drive module 30 and the rear drive module 40 can be configured as drive motors, with the front drive module 30 being a front drive module and the rear drive module 40 being a rear drive module. In other words, the vehicle has multiple drive modes, such as front-wheel drive mode, rear-wheel drive mode, and four-wheel drive mode, thereby improving the vehicle's power performance.

[0043] Referring to Figure 1 , the second heat dissipation branch 5 includes a second radiator 50. This second heat dissipation branch 5 is located between the rear drive module 40 and the first water pump 71 and can optionally be connected to the rear drive module branch 4. When the second heat dissipation branch 5 is connected to the rear drive module branch 4, the heat exchange medium flowing out of the rear drive module 40 is cooled at the second radiator 50 and then flows toward the first water pump 71, thereby improving the cooling effect on the rear drive module 40.

[0044] The first water pump 71 is used to drive the heat exchange medium to circulate in the pipeline in the vehicle thermal management system 100. Taking the connection between the first heat dissipation branch 1 and the front drive module branch 3 as an example, the first water pump 71 transports the heat exchange medium to the first heat dissipation branch 1. The heat exchange medium in the first heat dissipation branch 1 can flow to the front drive module branch 3, and after flowing through the front drive module branch 3, it flows to the first water pump 71 again, realizing the circulation of the heat exchange medium.

[0045] In some embodiments of the present application, the vehicle thermal management system 100 also includes a switching valve group, which is used to switch the heat exchange mode. By controlling the switching valve group, the heat exchange mode of the thermal management system (such as the first heat exchange mode, the second heat exchange mode and the third heat exchange mode) can be switched.

[0046] In some embodiments of the present application, the vehicle thermal management system 100 further includes a first water pump 71 , which is configured to deliver heat exchange medium to the first heat dissipation branch 1 and the first heat exchange branch 2 .

[0047] As shown in FIG. 1 , in an embodiment of the present application, the switch valve group includes: a first multi-way valve 94 , a second multi-way valve 95 , a third multi-way valve 96 and a fourth multi-way valve 93 .

[0048] Among them, the first multi-way valve 94 is respectively connected to the first heat dissipation branch 1, the first heat exchange branch 2 and the first water pump 71. By controlling the first multi-way valve 94, the first water pump 71 can be controlled to pump heat exchange medium to one of the first heat dissipation branch 1 or the first heat exchange branch 2.

[0049] 1 , the three ports of the first multi-way valve 94 are connected to the first water pump 71 , the first connecting section 11 and the third connecting section 21 respectively. The heat exchange medium output by the first water pump 71 enters the first multi-way valve 94 and can be transported to the first connecting section 11 and the third connecting section 21 .

[0050] The second multi-way valve 95 is connected to the first heat dissipation branch 1, the first heat exchange branch 2 and the drive module branch 34 respectively. By controlling the second multi-way valve 95, the on and off of the first heat dissipation branch 1, the first heat exchange branch 2 and the drive module branch 34 can be controlled.

[0051] The third multi-way valve 96 is connected to the drive module branch 34 and the first water pump 71 respectively. By controlling the third multi-way valve 96 , the on / off state of the drive module branch 34 and the first water pump 71 can be controlled.

[0052] In the embodiment of the present application, the drive module branch 34 includes a front drive module branch 3 and a rear drive module branch 4, and the third multi-way valve 96 is connected to the first water pump 71, the front drive module branch 3, and the rear drive module branch 4, respectively. When the front drive module 30 needs to be cooled, the front drive module branch 3 is connected to the first water pump 71 to form a front drive cooling circuit; when the rear drive module 40 needs to be cooled, the rear drive module branch 4 is connected to the first water pump 71 to form a rear front drive cooling circuit; when both the front drive module 30 and the rear drive module 40 need to be cooled, the front drive module branch 3 and the rear drive module branch 4 are connected to the first water pump 71, respectively.

[0053] The fourth multi-way valve 93 is connected to the drive module branch 34 and the second heat dissipation branch 5 respectively, and is used to control the on-off of the second heat dissipation branch 5 and the drive module branch 34, so as to selectively connect the second heat dissipation branch 5 to the drive module branch 34 to improve the cooling effect of the drive module 340.

[0054] 1 , the first multi-way valve 94 , the second multi-way valve 95 , and the third multi-way valve 96 are all configured as three-way valves, and the fourth multi-way valve 93 is configured as a four-way valve.

[0055] As shown in Figure 1, in some embodiments of the present application, the first heat dissipation branch 1 includes a first connecting section 11 and a second connecting section 12, and the first heat exchanger 10 is arranged in the second connecting section 12; the first heat exchange branch 2 includes a third connecting section 21 and a fourth connecting section 22, and the second heat exchanger 20 is arranged in the third connecting section 21.

[0056] 1 , the rear drive module branch 4 includes a fifth connecting segment 41 and a sixth connecting segment 42 , and the rear drive module 40 is disposed on the fifth connecting segment 41 .

[0057] The four ports of the fourth multi-way valve 93 are respectively connected to the fifth connecting section 41, the sixth connecting section 42, and both ends of the second heat dissipation branch 5. Thus, by controlling the fourth multi-way valve 93, the second heat dissipation branch 5 can be selectively connected to the rear drive module branch 4. When the second heat dissipation branch 5 is not required, the fifth connecting section 41 is connected to the sixth connecting section 42. The heat exchange medium discharged from the fifth connecting section 41 can flow directly into the sixth connecting section 42. After flowing through the sixth connecting section 42, it flows through the third multi-way valve 96 to the first water pump 71. When the second heat dissipation branch 5 is required, the fifth connecting section 41 is connected to the liquid inlet of the second heat dissipation branch 5, and the sixth connecting section 42 is connected to the liquid outlet of the second heat dissipation branch 5. The heat exchange medium discharged from the fifth connecting section 41 can flow into the second heat dissipation branch 5. After cooling at the second radiator 50, the heat exchange medium flows through the fourth multi-way valve 93 into the sixth connecting section 42. After flowing through the sixth connecting section 42, it flows through the third multi-way valve 96 to the first drive device.

[0058] In an embodiment of the present application, the switching valve group also includes: a fifth multi-way valve 92, which is connected to the first connecting section 11, the second connecting section 12, the third connecting section 21 and the fourth connecting section 22. By controlling the fifth multi-way valve 92, the first connecting section 11 and the second connecting section 12 can be connected to form a first heat dissipation branch 1, and the third connecting section 21 and the fourth connecting section 22 can be connected to form a first heat exchange branch 2.

[0059] Here, the fifth multi-way valve 92 is configured as a four-way valve.

[0060] 1 , the four ports of the fifth multi-way valve 92 are connected to the first connecting section 11 , the second connecting section 12 , the third connecting section 21 and the fourth connecting section 22 , respectively, so that the first connecting section 11 and the second connecting section 12 , the third connecting section 21 and the fourth connecting section 22 are selectively connected by controlling the fifth multi-way valve 92 .

[0061] When the first heat dissipation branch 1 is connected to form a cooling circuit, the fifth multi-way valve 92 is controlled to connect the first connecting section 11 and the second connecting section 12 so that the heat exchange medium flows into the second connecting section 12; when the first heat exchange branch 2 is connected to form a cooling circuit, the fifth multi-way valve 92 is controlled to connect the third connecting section 21 and the fourth connecting section 22 so that the heat exchange medium flows into the fourth connecting section 22.

[0062] In some embodiments of the present application, the drive module branch 34 includes a front drive module branch 3 and a rear drive module branch 4, and the third multi-way valve 96 is connected to the first water pump 71, the front drive module branch 3 and the rear drive module branch 4.

[0063] The switch valve group also includes a sixth multi-way valve 91, which is connected to the second multi-way valve 95, the front drive module branch 3, and the rear drive module branch 4, and is used to control the communication between one of the first heat dissipation branch 1 and the first heat exchange branch 2 and at least one of the front drive module branch 3 and the rear drive module branch 4. For example, the first heat dissipation branch 1 is connected to the front drive module branch 3, the first heat dissipation branch 1 is connected to the rear drive module branch 4, the first heat dissipation branch 1 is connected to the front drive module branch 3 and the rear drive module branch 4 respectively, the second heat dissipation branch 2 is connected to the front drive module branch 3, the second heat dissipation branch 2 is connected to the rear drive module branch 4, and the second heat dissipation branch 2 is connected to the front drive module branch 3 and the rear drive module branch 4 respectively.

[0064] Referring to Figure 1, the three ports of the second multi-way valve 95 are respectively connected to the second connecting section 12, the fourth connecting section 22 and the first port 911 of the sixth multi-way valve 91. The heat exchange medium flowing out through the second connecting section 12 or the fourth connecting section 22 can be transported to the side of the sixth multi-way valve 91 through the second multi-way valve 95.

[0065] 1 , the second port 912 and the third port 913 of the sixth multi-way valve 91 are connected to the front drive module branch 3 and the rear drive module branch 4, respectively. By controlling the sixth multi-way valve 91, at least one of the second port 912 and the third port 913 can be selectively connected to the first port 911, thereby delivering heat exchange medium to the front drive module branch 3 and the rear drive module branch 4 to cool the front drive module 30 and the rear drive module 40.

[0066] When the first port 911 and the second port 912 are connected, the heat exchange medium flows into the front drive module branch 3 through the sixth multi-way valve 91; when the first port 911 and the third port 913 are connected, the heat exchange medium flows into the rear drive module branch 4 through the sixth multi-way valve 91.

[0067] The arrows in FIG1 indicate the flow direction of the heat exchange medium. The flow direction of the heat exchange medium is not limited thereto. The heat exchange medium may also circulate in a direction opposite to the direction of the arrows in the figure.

[0068] In some embodiments of the present application, the second heat dissipation branch 5 is provided with a second water pump 72, which is used to transport the heat exchange medium toward the first heat dissipation branch 1 or the first heat exchange branch 2. The second water pump 72 is adapted to operate when the second heat dissipation branch 5 is connected to the cooling circuit to transport the heat exchange medium in the second heat dissipation branch 5 toward the fourth multi-way valve 93, thereby ensuring effective circulation of the heat exchange medium in the cooling circuit.

[0069] In some embodiments of the present application, the vehicle thermal management system 100 further includes a fluid replenishment branch, which is connected to the first heat dissipation branch 1 and is used to replenish heat exchange medium to the first heat dissipation branch 1 .

[0070] The liquid replenishing branch is not limited to being connected only to the first heat dissipating branch 1 , but may also be connected to the first heat exchanging branch 2 .

[0071] The replenishing branch is provided with a replenishing device 97 , which is connected to the first radiator 10 and the first heat exchanger 20 respectively, and is used to replenish heat exchange medium to the first heat dissipation branch 1 or the first heat exchange branch 2 .

[0072] There is loss of heat exchange medium during the circulation process of the cooling circuit formed by the first heat dissipation branch 1, the first heat exchange branch 2, the front drive module branch 3, the rear drive module branch 4 and the second heat dissipation branch 5. The present application replenishes the heat exchange medium to the first heat dissipation branch 1 and the first heat exchange branch 2 through the fluid replenishment device 97 to ensure the circulation effect of the heat exchange medium in the cooling circuit.

[0073] In some embodiments of the present application, the first radiator 10 can exchange heat with the condenser 8 in the air conditioning system. Referring to Figure 1 , the first radiator 10 can exchange heat with the condenser 8 to transfer heat toward the condenser 8, thereby improving the cooling effect of the heat exchange medium at the first radiator 10 and achieving heat exchange coordination between the cooling circuit of the drive module 340 and the air conditioning system, thereby reducing the energy consumption of the thermal management system 100 and improving the vehicle's range.

[0074] In some embodiments of the present application, the vehicle thermal management system 100 further includes: a first fan 61 and a second fan.

[0075] Among them, the first fan 61 is used to supply air to the first radiator 10, thereby increasing the air flow rate at the first radiator 10 and improving the heat dissipation effect at the first radiator 10; the second fan 62, the second fan 62 is used to supply air to the second radiator 50, thereby increasing the air flow rate at the second radiator 50 and improving the heat dissipation effect at the second radiator 50.

[0076] As shown in FIG1 , in some embodiments of the present application, the second heat dissipation branch 5 is provided with a plurality of second heat sinks 50 connected in series, and there are a plurality of second fans 62 , and the plurality of second fans 62 correspond one-to-one to the plurality of second heat sinks 50 .

[0077] When multiple second heat sinks 50 are provided in the second heat dissipation branch 5, the heat exchange medium can flow through the multiple second heat sinks 50 in sequence in the second heat dissipation branch 5 to enhance the cooling effect of the heat exchange medium at the second heat dissipation branch 5. Thus, by providing multiple second heat sinks 50 (e.g., two, three, etc.), the cooling effect of the heat exchange medium at the second heat dissipation branch 5 can be enhanced.

[0078] The second radiator 50 and the second fan 62 may be arranged at the rear side of the vehicle, such as in an area adjacent to a trunk, so as to meet the design requirements of the interior of the vehicle.

[0079] 1 , various operating modes of a vehicle thermal management system 100 according to an embodiment of the present application are described.

[0080] (1) When the vehicle is in track mode (i.e., high-performance four-wheel drive operating condition), the first heat dissipation branch 1, the front drive module branch 3, the rear drive module branch 4, and the second heat dissipation branch 5 constitute a cooling circuit.

[0081] The heat exchange medium flows through the first water pump 71 to the first heat dissipation branch 1. After being cooled by the first radiator 10, the heat exchange medium flows to the front drive module branch 3 and the rear drive module branch 4 at the second multi-way valve 95, and then flows into the second heat dissipation branch 5 at the rear drive module branch 4. The heat exchange medium flows through the front drive module branch 3 and the rear drive module branch 4 to the third multi-way valve 96 and then flows into the first water pump 71 again, completing the cooling cycle.

[0082] In this mode, the driving devices (such as the first water pump 71, the second water pump 72) and fans (the first fan 61, the second fan 62) in the vehicle thermal management system 100 are all in the highest performance working mode, thereby meeting the vehicle's maximum power output cooling without power limitation, to ensure the optimal performance of the vehicle's power system.

[0083] (2) When the vehicle is in the normal temperature four-wheel drive cooling mode, the first heat dissipation branch 1, the front drive module branch 3 and the rear drive module branch 4 constitute a cooling circuit.

[0084] Among them, the heat exchange medium flows to the first heat dissipation branch 1 through the first water pump 71, and after being cooled by the first radiator 10, the heat exchange medium flows to the front drive module branch 3 and the rear drive module branch 4 at the second multi-way valve 95 respectively, and the heat exchange medium flows to the third multi-way valve 96 through the front drive module branch 3 and the rear drive module branch 4 and then flows into the first water pump 71 again to realize the cooling cycle.

[0085] In this mode, only the first water pump 71 and the first fan 61 are running in the vehicle thermal management system 100. The first water pump 71 and the first fan 61 are at a relatively low load while ensuring the power of the entire vehicle. They can meet both the normal temperature cooling requirements and the power requirements of the entire vehicle, and can effectively reduce the energy consumption of the vehicle thermal management system 100, which is beneficial to improving the vehicle's cruising range.

[0086] (3) When the vehicle is in the normal temperature front drive cooling mode, the first heat dissipation branch 1 and the front drive module branch 3 form a cooling circuit.

[0087] Among them, the heat exchange medium flows to the first heat dissipation branch 1 through the first water pump 71, and after being cooled by the first radiator 10, the heat exchange medium flows to the front drive module branch 3 at the second multi-way valve 95, and the heat exchange medium flows to the third multi-way valve 96 through the front drive module branch 3 and then flows into the first water pump 71 again to realize the cooling cycle.

[0088] In this mode, the first water pump 71 and the first fan 61 are at a relatively low load while ensuring the power of the entire vehicle, which can meet both the cooling requirements of the front drive module 30 and the power requirements of the entire vehicle, effectively reducing the energy consumption of the vehicle thermal management system 100 and helping to increase the vehicle's cruising range.

[0089] (4) When the vehicle is in the first normal temperature rear drive cooling mode, the first heat dissipation branch 1 and the rear drive module branch 4 form a cooling circuit.

[0090] Among them, the heat exchange medium flows to the first heat dissipation branch 1 through the first water pump 71, and after being cooled by the first radiator 10, the heat exchange medium flows to the rear drive module branch 4 at the second multi-way valve 95, and the heat exchange medium flows to the third multi-way valve 96 through the rear drive module branch 4 and then flows into the first water pump 71 again to realize the cooling cycle.

[0091] In this mode, the first water pump 71 and the first fan 61 are at a relatively low load while ensuring the power of the entire vehicle, which can meet both the cooling requirements of the rear drive module 40 and the power requirements of the entire vehicle, and can effectively reduce the energy consumption of the vehicle thermal management system 100, which is beneficial to improving the vehicle's cruising range.

[0092] (5) When the vehicle is in the second normal temperature rear drive cooling mode, the first heat exchange branch 2, the rear drive module branch 4 and the second heat dissipation branch 5 constitute a cooling circuit.

[0093] The heat exchange medium flows to the first heat exchange branch 2. After being cooled by the first heat exchanger 20, the heat exchange medium flows to the rear drive module branch 4 at the second multi-way valve 95, and then flows into the second heat dissipation branch 5 at the rear drive module branch 4. The heat exchange medium flows through the rear drive module branch 4 to the third multi-way valve 96 and then flows back into the first heat exchange branch 2, completing the cooling cycle.

[0094] In this mode, the first water pump 71 in the vehicle thermal management system 100 does not work, and the second water pump 72 and the second fan 62 are running. The second water pump 72 and the second fan 62 are at a lower load while ensuring the power of the entire vehicle, thereby reducing the work of the first water pump 71 and the first fan 61 while meeting the cooling requirements, which is beneficial to improving the vehicle's cruising range.

[0095] (6) When the vehicle is in the low-temperature heat pump heating four-wheel drive mode, the first heat exchange branch 2, the front drive module branch 3 and the rear drive module branch 4 form a cooling circuit.

[0096] Among them, the heat exchange medium flows to the first heat exchange branch 2 through the first water pump 71, and the heat exchange medium flows to the front drive module branch 3 and the rear drive module branch 4 at the second multi-way valve 95 respectively. Moreover, the heat exchange medium increases in temperature after flowing through the front drive module branch 3 and the rear drive module branch 4 and exchanging heat with the second heat exchange module of the front drive module 30, and flows into the first water pump 71 to realize the cooling cycle.

[0097] In this mode, the first radiator 10 and the second radiator 50 are short-circuited through the control of the fifth multi-way valve 92 and the fourth multi-way valve 93, and the heat exchange medium cannot dissipate heat through the first radiator 10 and the second radiator 50, thereby ensuring that the heat generated by the front drive module 30 and the rear drive module 40 is absorbed by the first heat exchanger 20 to the maximum extent, and more heat is transferred to the battery and the passenger compartment, thereby heating the battery and the passenger compartment.

[0098] (7) When the vehicle is in the low-temperature heat pump heating front drive mode, the first heat exchange branch 2 and the front drive module branch 3 form a cooling circuit.

[0099] Among them, the heat exchange medium flows to the first heat exchange branch 2 through the first water pump 71, and the heat exchange medium flows to the front drive module branch 3 at the second multi-way valve 95. Moreover, the temperature of the heat exchange medium increases after flowing through the front drive module branch 3 respectively, and flows into the first water pump 71 to realize the cooling cycle.

[0100] In this mode, the first radiator 10 and the second radiator 50 are short-circuited through the control of the fifth multi-way valve 92 and the fourth multi-way valve 93, and the heat exchange medium cannot dissipate heat through the first radiator 10 and the second radiator 50, thereby ensuring that the heat generated by the front drive module 30 is absorbed by the first heat exchanger 20 to the maximum extent, and more heat is transferred to the battery and the passenger compartment, thereby heating the battery and the passenger compartment.

[0101] (8) When the vehicle is in the low-temperature heat pump heating rear drive mode, the first heat exchange branch 2 and the rear drive module branch 4 form a cooling circuit.

[0102] Among them, the heat exchange medium flows to the first heat exchange branch 2 through the first water pump 71, and the heat exchange medium flows to the rear drive module branch 4 at the second multi-way valve 95. Moreover, the temperature of the heat exchange medium increases after flowing through the rear drive module branch 4 respectively, and flows into the first water pump 71 to realize the cooling cycle.

[0103] In this mode, the first radiator 10 and the second radiator 50 are short-circuited through the control of the fifth multi-way valve 92 and the fourth multi-way valve 93, and the heat exchange medium cannot dissipate heat through the first radiator 10 and the second radiator 50, thereby ensuring that the heat generated by the rear drive module 40 is absorbed by the first heat exchanger 20 to the maximum extent, and more heat is transferred to the battery and the passenger compartment, thereby heating the battery and the passenger compartment.

[0104] In summary, the vehicle thermal management system 100 according to the embodiment of the present application has at least the following advantages:

[0105] (1) The present application can improve the cooling effect of the vehicle thermal management system 100 on the drive module 340 by connecting the second heat dissipation branch 5 to the cooling circuit, thereby ensuring the heat dissipation requirements of the vehicle under high-speed or intense driving.

[0106] (2) The present application realizes the connection of multiple heat exchange branches by setting multiple multi-way valves, so that the vehicle thermal management system 100 can form corresponding cooling circuit distribution and precision control under different working conditions, ensuring the normal driving of the vehicle, and reducing the energy consumption of the thermal management system while meeting the cooling requirements, thereby improving the endurance of the entire vehicle.

[0107] (3) Under low temperature conditions, the heat of the energy drive module 340 can be transferred to the first heat exchanger 20, reducing the heat loss of the first heat exchanger 20 (heat pump plate heat exchanger) under low temperature conditions.

[0108] 1-3 , a thermal management method for a vehicle according to an embodiment of the second aspect of the present application is described. The vehicle includes a vehicle thermal management system 100, and the vehicle thermal management system 100 includes a drive module 340, a first radiator, a second radiator, and a first heat exchanger. The method includes: obtaining a sport mode of the vehicle, where the drive mode includes a track racing mode and a conventional drive mode; and selecting a heat exchange mode corresponding to the sport mode, where the heat exchange mode includes a first heat exchange mode, a second heat exchange mode, and a third heat exchange mode.

[0109] The thermal management method of the second embodiment of the present application can be applied to the above-mentioned vehicle thermal management system 100, so as to control the operating mode of the vehicle thermal management system 100 corresponding to various driving modes of the vehicle.

[0110] The vehicle in this application may include a track racing mode and a conventional driving mode, and the heat exchange requirements of the vehicle's power module in different operating modes need to be designed accordingly. Therefore, this application first obtains the vehicle's motion mode, and selects the corresponding heat exchange mode according to the motion mode. The heat exchange mode includes a first heat exchange mode, a second heat exchange mode, and a third heat exchange mode to match the heat exchange mode of the vehicle thermal management system with the vehicle operating mode, meet the cooling requirements of the drive module 340, and allocate and accurately control the cooling circuit of the vehicle thermal management system to reduce heat loss in the thermal management system.

[0111] 3 , in an embodiment of the present application, when the vehicle's sport mode is the track racing mode, the operating mode of the thermal management system is controlled to be the first heat exchange mode; when the vehicle's sport mode is the conventional driving mode, the operating mode of the thermal management system is controlled to be the second heat exchange mode or the third heat exchange mode.

[0112] When the vehicle's sport mode is determined to be track racing mode, the vehicle is in a high-performance operating state, and at this time, the cooling requirements of the drive module 340 are high. At the same time, when the drive module 340 includes a front drive module and a rear drive module, both the front drive module and the rear drive module need to be cooled simultaneously.

[0113] When it is determined that the vehicle's sport mode is the normal driving mode, the thermal management system operates in the second heat exchange mode or the third heat exchange mode to meet the cooling demand of the driving module 340 .

[0114] 1 , when the vehicle operates in track racing mode, the thermal management system 100 forms a cooling circuit through the first heat dissipation branch 1, the front drive module branch 3, the rear drive module branch 4, and the second heat dissipation branch 5 to fully utilize the cooling performance of the thermal management system 100 and enhance the cooling effect on the front drive module 30 and the rear drive module 40.

[0115] In an embodiment of the present application, the drive module 340 includes a front drive module and a rear drive module, and the thermal management system also includes a fan and a first water pump 71. In the track racing mode, the first current temperature T1 of the front drive module and the second current temperature T2 of the rear drive module are obtained, and the speed of the fan and the power of the first water pump are controlled according to the comparison results of the first current temperature T1, the second current temperature T2 and the first target temperature T3.

[0116] The first target temperature T3 may include two preset temperature parameters, and the two temperature parameters are compared with the first current temperature T1 and the second current temperature T2 respectively.

[0117] The heat exchange efficiency of the thermal management system 100 is affected by the flow rate of the heat exchange medium in the cooling circuit and the heat dissipation efficiency at the radiator. Therefore, based on the comparison of the first current temperature T1 and the second current temperature T2 with the first target temperature T3, the operating efficiency of the fan and the first water pump is adjusted to meet the cooling requirements of the front drive module 30 and the rear drive module 40.

[0118] In an embodiment of the present application, the first target temperature T3 includes: a first segment temperature and a second segment temperature, and the second segment temperature is higher than the first segment temperature, and controlling at least one of the output efficiency of the driving device and the speed of the fan according to the comparison result includes: when the first current temperature T1 and the second current temperature T2 reach the first segment temperature, controlling the first water pump and the fan to operate in the first performance mode; when the first current temperature T1 and the second current temperature T2 reach the second segment temperature, controlling the first water pump and the fan to operate in the second performance mode;

[0119] The power of the first water pump and the rotational speed of the fan in the first performance operating mode are lower than the power of the first water pump and the rotational speed of the fan in the second performance operating mode.

[0120] Among them, the working efficiency of the first water pump and the fan in the first performance operating mode is higher than that in the second performance mode. Therefore, as the temperature of the front drive module 30 and the rear drive module 40 increases, the power of the first water pump and the speed of the fan are increased, thereby improving the cooling efficiency of the thermal management system 100 and preventing the temperature of the front drive module 30 and the rear drive module 40 from being too high.

[0121] The first target temperature may further include a third segment temperature and a fourth segment temperature, and the first segment temperature, the second segment temperature, and the third segment temperature are set in an ascending manner. In the control strategy corresponding to the segment temperature, the output efficiency of the first water pump and the speed of the fan are also adjusted accordingly. As the segment temperatures reached by the first current temperature T1 and the second current temperature T2 gradually increase, the output efficiency of the first water pump and the speed of the fan also gradually increase.

[0122] For example: when the first current temperature T1 and the second current temperature T2 reach the first section temperature, the first water pump and the fan are controlled to operate at the first working efficiency (such as 30%-50% of the maximum power); when the first current temperature T1 and the second current temperature T2 reach the second section temperature, the first water pump and the fan are controlled to operate at the second working efficiency (such as 50%-70% of the maximum power); when the first current temperature T1 and the second current temperature T2 reach the third section temperature, the first water pump and the fan are controlled to operate at the third working efficiency (such as 100% of the maximum power).

[0123] The action of comparing the first current temperature T1 and the second current temperature T2 with the above-mentioned multiple section temperatures is performed continuously or periodically, so that the first water pump and the fan can be controlled and adjusted according to the real-time changes of the first current temperature T1 and the second current temperature T2.

[0124] In some embodiments of the present application, the driving module 340 includes a front driving module and a rear driving module, and the conventional driving modes include a conventional four-wheel drive mode, a conventional front-wheel drive mode, and a conventional rear-wheel drive mode.

[0125] Among them, the thermal management method includes: obtaining the first current temperature T1 of the front drive module and the second current temperature T2 of the rear drive module, comparing the temperature difference threshold absolute value T between the first current temperature T1 and the second current temperature T2 with the second preset temperature T4, and determining the normal driving mode of the vehicle.

[0126] When T<T4, the vehicle is determined to be in the conventional four-wheel drive mode; when T>T4 and when T1>T2, the vehicle is determined to be in the conventional front-wheel drive mode; when T>T4 and when T1<T2, the vehicle is determined to be in the conventional rear-wheel drive mode.

[0127] Thus, the normal driving mode of the vehicle may be determined based on the first current temperature T1 , the second current temperature T2 , and the second preset temperature T4 .

[0128] When T<T4, it means that the temperature difference between the current temperature T1 of the front drive module 30 and the current temperature T2 of the rear drive module 40 is small, that is, the front drive module 30 and the rear drive module 40 are running at the same time, which is a four-wheel drive working condition; when T>T4, it means that the temperature difference between the current temperature T1 of the front drive module 30 and the current temperature T2 of the rear drive module 40 is large, that is, only one drive module 340 of the front drive module 30 and the rear drive module 40 is running, which is a front drive working condition or a rear drive working condition. At this time, T1 and T2 can be compared, and based on the comparison result of T1 and T2, it can be determined whether the vehicle is in a conventional front drive mode or a conventional rear drive mode.

[0129] In an embodiment of the present application, after determining the normal driving mode of the vehicle, the operating mode of the vehicle's air-conditioning system is obtained, and based on the operating mode of the air-conditioning system, the thermal management system is determined to operate in the second heat exchange mode or the third heat exchange mode, wherein the operating mode of the air-conditioning system includes the air-conditioning cooling mode and the air-conditioning heating mode.

[0130] When the air conditioning system operates in cooling mode, heat in the vehicle's thermal management system can be transferred to the condenser 8. When the air conditioning system operates in heating mode, heat in the vehicle's thermal management system can be transferred to the first heat exchanger. This improves energy utilization in the vehicle's thermal management system and reduces heat loss.

[0131] In some embodiments of the application, when the air-conditioning system operating mode is determined to be the air-conditioning cooling mode, the thermal management system is controlled to operate in the second heat exchange mode; when the air-conditioning system operating mode is determined to be the air-conditioning heating mode, the thermal management system is controlled to operate in the second heat exchange mode.

[0132] The second heat exchange mode and the third heat exchange mode are the same as the second heat exchange mode and the third heat exchange mode in vehicle thermal management.

[0133] The operating mode of the vehicle thermal management system 100 has been mentioned in the above-mentioned embodiment of the first aspect, and is specifically as follows:

[0134] When T<T4, it is determined to be the conventional four-wheel drive mode, and when the working mode of the air-conditioning system is the air-conditioning cooling mode, the first heat dissipation branch 1, the front drive module branch 3 and the rear drive module branch 4 are controlled to be connected.

[0135] In this mode, only the first water pump 71 and the first fan 61 are running in the thermal management system 100. The first water pump 71 and the first fan 61 are at a relatively low load while ensuring the power of the entire vehicle. They can meet both the normal temperature cooling requirements and the power requirements of the entire vehicle, effectively reducing the energy consumption of the thermal management system 100 and helping to increase the vehicle's cruising range.

[0136] When T<T4, it is determined to be the conventional four-wheel drive mode, and when the working mode of the air-conditioning system is the air-conditioning heating mode, the first heat exchange branch 2, the front drive module branch 3 and the rear drive module branch 4 are controlled to be connected.

[0137] In this mode, the first radiator 10 and the second radiator 50 are short-circuited through the control of the fifth multi-way valve 92 and the fourth multi-way valve 93, and the working fluid cannot dissipate heat through the first radiator 10 and the second radiator 50, thereby ensuring that the heat generated by the front drive module 30 and the rear drive module 40 is absorbed by the first heat exchanger 20 to the maximum extent, and more heat is transferred to the battery and the passenger compartment, thereby heating the battery and the passenger compartment.

[0138] When T>T4 and T1>T2, it is determined to be the normal front drive mode, and when the working mode of the air-conditioning system is the air-conditioning cooling mode, the first heat dissipation branch 1 and the front drive module branch 3 are controlled to be connected.

[0139] In this mode, the first water pump 71 and the first fan 61 are at a relatively low load while ensuring the power of the entire vehicle, which can meet both the cooling requirements of the front drive module 30 and the power requirements of the entire vehicle, effectively reducing the energy consumption of the thermal management system 100 and helping to increase the vehicle's cruising range.

[0140] When T>T4 and T1>T2, it is determined to be the normal front drive mode, and when the working mode of the air-conditioning system is the air-conditioning heating mode, the first heat exchange branch 2 and the front drive module branch 3 are controlled to be open.

[0141] In this mode, the first radiator 10 and the second radiator 50 are short-circuited through the control of the fifth multi-way valve 92 and the fourth multi-way valve 93, and the working fluid cannot dissipate heat through the first radiator 10 and the second radiator 50, thereby ensuring that the heat generated by the front drive module 30 is absorbed by the first heat exchanger 20 to the maximum extent, and more heat is transferred to the battery and the passenger compartment, thereby heating the battery and the passenger compartment.

[0142] When T>T4 and T1<T2, it is determined to be the normal rear drive mode, and when the working mode of the air-conditioning system is the air-conditioning cooling mode, the first heat dissipation branch 1 is controlled to be connected to the rear drive module branch 4.

[0143] In this mode, the first water pump 71 and the first fan 61 are at a relatively low load while ensuring the power of the entire vehicle, which can meet both the cooling requirements of the rear drive module 40 and the power requirements of the entire vehicle, effectively reducing the energy consumption of the thermal management system 100 and helping to increase the vehicle's cruising range.

[0144] When T>T4 and T1<T2, it is determined to be the normal rear drive mode, and when the working mode of the air conditioning system is the air conditioning heating mode, the first heat exchange branch 2 and the rear drive module branch 4 are controlled to be open.

[0145] In this mode, the first radiator 10 and the second radiator 50 are short-circuited through the control of the fifth multi-way valve 92 and the fourth multi-way valve 93, and the working fluid cannot dissipate heat through the first radiator 10 and the second radiator 50, thereby ensuring that the heat generated by the rear drive module 40 is absorbed by the first heat exchanger 20 to the maximum extent, and more heat is transferred to the battery and the passenger compartment, thereby heating the battery and the passenger compartment.

[0146] According to the controller of the third embodiment of the present application, the controller is configured to execute the above-mentioned thermal management method.

[0147] According to the non-temporary computer-readable storage medium of the fourth aspect embodiment of the present application, when the instructions in the storage medium are executed by the processor of the terminal device, the terminal device is enabled to execute the above-mentioned thermal management method.

[0148] According to the vehicle control device of the fifth embodiment of the present application, the vehicle includes a thermal management system, and the thermal management system includes a drive module 340, a first radiator, a second radiator, and a first heat exchanger.

[0149] The control device includes: a determination module 201, which is used to determine the vehicle's motion mode, and the driving modes include a track racing mode and a conventional driving mode; a control module 202, which is used to control the heat exchange mode of the thermal management system according to the determined motion mode, and the heat exchange mode includes a first heat exchange mode, a second heat exchange mode, and a third heat exchange mode.

[0150] The control module 202 and the determination module 201 in the control device 200 are suitable for executing the above-mentioned thermal management method, and their effects are the same as those of the thermal management method, which will not be described in detail here.

[0151] The vehicle according to the sixth embodiment of the present application includes the above-mentioned thermal management system and control device.

[0152] Therefore, the cooling circuit can be controlled through multiple switching valve groups to match the heat exchange mode of the vehicle thermal management system 100 with the vehicle's movement mode, so that when the vehicle is driving, the cooling requirements of the power system (i.e., the front drive module 30 and the rear drive module 40) can be met while reducing the energy consumption of the cooling system and improving the endurance of the entire vehicle.

[0153] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0154] In the description of this application, “plurality” means two or more.

[0155] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0156] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

[0157] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0158] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

[0159] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0160] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

Claims

1. A vehicle thermal management system, comprising: A drive module branch (34), wherein a drive module (340) is provided on the drive module branch (34); A first heat dissipation branch (1), wherein a first heat sink (10) is provided on the first heat dissipation branch (1); A second heat dissipation branch (5), wherein a second heat sink (50) is provided on the second heat dissipation branch (5); A first heat exchange branch (2), wherein a first heat exchanger (20) is provided on the first heat exchange branch (2); The thermal management system has at least one of a first heat exchange mode, a second heat exchange mode, and a third heat exchange mode; In the first heat exchange mode, the first heat dissipation branch (1), the driving module branch (34), and the second heat dissipation branch (5) are connected in series, and the heat emitted by the driving module (340) is exchanged with the outside world through the first heat sink (10) and the second heat sink (50), respectively. In the second heat exchange mode, the driving module branch (34) is connected in series with one of the first heat dissipation branch (1) and the second heat dissipation branch (5), and the other of the first heat dissipation branch (1) and the second heat dissipation branch (5) is not in operation; In the third heat exchange mode, the drive module branch (34) is connected in series with the first heat exchange branch (2), and the heat emitted by the drive module (340) is exchanged with the vehicle's air conditioning system through the first heat exchanger (20).

2. The vehicle thermal management system according to claim 1, wherein: The drive module branch (34) includes a front drive module branch (3).

3. The vehicle thermal management system according to claim 1 or 2, wherein: The drive module branch (34) includes a rear drive module branch (4).

4. The vehicle thermal management system (100) according to any one of claims 2-3, wherein: It also includes a switch valve group for switching the heat exchange mode.

5. The vehicle thermal management system (100) according to claim 4, wherein: The thermal management system (100) further comprises a first water pump (71), the first water pump (71) being used to transport heat exchange medium to the first heat dissipation branch (1) and the first heat exchange branch (2); The switch valve group includes: a first multi-way valve (94), the first multi-way valve (94) being connected to the first heat dissipation branch (1), the first heat exchange branch (2), and the first water pump (71); a second multi-way valve (95), the second multi-way valve (95) being connected to the first heat dissipation branch (1), the first heat exchange branch (2), and the drive module branch (34); a third multi-way valve (96), the third multi-way valve (96) being connected to the drive module branch (34) and the first water pump (71); A fourth multi-way valve (93) is connected to the drive module branch (34) and the second heat dissipation branch (5), and is used to control the on-off of the second heat dissipation branch (5) and the drive module branch (34).

6. The vehicle thermal management system according to claim 5, wherein: The first heat dissipation branch (1) comprises a first connecting section (11) and a second connecting section (12), and the first heat exchanger (10) is arranged in the second connecting section (12); The first heat exchange branch (2) comprises a third connecting section (21) and a fourth connecting section (22), and the second heat exchanger (20) is provided in the third connecting section (21); The switch valve group also includes: A fifth multi-way valve (92), the fifth multi-way valve (92) is connected to the first connecting section (11), the second connecting section (12), the third connecting section (21) and the fourth connecting section (22).

7. The vehicle thermal management system according to claim 5 or 6, wherein: The drive module branch (34) includes a front drive module branch (3) and a rear drive module branch (4), and the third multi-way valve (96) is connected to the first water pump (71), the front drive module branch (3), and the rear drive module branch (4); The switch valve group further includes a sixth multi-way valve (91), which is connected to the second multi-way valve (95), the front drive module branch (3) and the rear drive module branch (4), and is used to control one of the first heat dissipation branch (1) and the first heat exchange branch (2) to be connected to at least one of the front drive module branch (3) and the rear drive module branch (4).

8. The vehicle thermal management system according to any one of claims 1 to 7, wherein: It also includes a fluid replenishment branch, which is connected to the first heat dissipation branch and is used to replenish heat exchange medium to the first heat dissipation branch.

9. The vehicle thermal management system according to any one of claims 1 to 8, wherein: Also includes: a first fan (61), the first fan (61) being used to supply air to the first radiator (10); A second fan (62), the second fan (62) is used to supply air to the second radiator (50).

10. A thermal management method for a vehicle, the vehicle comprising a thermal management system, the thermal management system (100) comprising a drive module, a first radiator, a second radiator, and a first heat exchanger; The method comprises: Acquiring a sport mode of the vehicle, wherein the driving mode includes a track racing mode and a conventional driving mode; A heat exchange mode corresponding to the motion mode is selected, where the heat exchange mode includes a first heat exchange mode, a second heat exchange mode, and a third heat exchange mode.

11. The method according to claim 10, wherein When the vehicle's sports mode is a track racing mode, controlling the thermal management system to operate in a first heat exchange mode; When the sport mode of the vehicle is the normal driving mode, the operation mode of the thermal management system is controlled to be the second heat exchange mode or the third heat exchange mode.

12. The method according to claim 11, wherein The drive module includes a front drive module and a rear drive module, and the thermal management system also includes a fan and a first water pump (71). In the track racing mode, a first current temperature T1 of the front drive module and a second current temperature T2 of the rear drive module are obtained, and the rotation speed of the fan and the power of the first water pump are controlled according to the comparison result of the first current temperature T1, the second current temperature T2 and the first target temperature T3.

13. The method according to claim 12, wherein: The first target temperature T3 includes: a first segment temperature and a second segment temperature, and the second segment temperature is higher than the first segment temperature. The formula for controlling at least one of the output efficiency of the driving device and the speed of the fan according to the comparison result includes: When the first current temperature T1 and the second current temperature T2 reach a first section temperature, controlling the first water pump and the fan to operate in a first performance mode; When the first current temperature T1 and the second current temperature T2 reach a second section temperature, controlling the first water pump and the fan to operate in a second performance mode; The power of the first water pump and the rotational speed of the fan in the first performance operating mode are lower than the power of the first water pump and the rotational speed of the fan in the second performance operating mode.

14. The method according to any one of claims 11 to 13, wherein The driving module includes a front driving module and a rear driving module, and the conventional driving mode includes a conventional four-wheel drive mode, a conventional front-wheel drive mode and a conventional rear-wheel drive mode; Obtaining a first current temperature T1 of the front drive module and a second current temperature T2 of the rear drive module, comparing a temperature difference threshold absolute value T between the first current temperature T1 and the second current temperature T2 with a second preset temperature T4, and determining the normal driving mode of the vehicle; When T<T4, it is determined that the vehicle is in the normal four-wheel drive mode; When T>T4 and when T1>T2, it is determined that the vehicle is in the normal front-wheel drive mode; When T>T4, and when T1<T2, it is determined that the vehicle is in the normal rear-wheel drive mode.

15. The method according to claim 14, wherein After determining the normal driving mode of the vehicle, the operating mode of the air-conditioning system of the vehicle is obtained, and according to the operating mode of the air-conditioning system, it is determined that the thermal management system operates the second heat exchange mode or the third heat exchange mode, wherein the operating mode of the air-conditioning system includes an air-conditioning cooling mode and an air-conditioning heating mode.

16. The method according to claim 15, wherein When it is determined that the operating mode of the air-conditioning system is the air-conditioning cooling mode, controlling the thermal management system to operate in the second heat exchange mode; When it is determined that the operating mode of the air-conditioning system is the air-conditioning heating mode, the thermal management system is controlled to operate in the third heat exchange mode. 17 . A controller configured to execute the thermal management method according to claim 10 . 18 . A non-transitory computer-readable storage medium, which, when instructions in the storage medium are executed by a processor of a terminal device, enables the terminal device to execute the thermal management method according to claim 10 .

19. A control device for a vehicle, the vehicle comprising a thermal management system, the thermal management system comprising a drive module, a first radiator, a second radiator, and a first heat exchanger; The control device comprises: a determination module, configured to determine a motion mode of the vehicle, wherein the driving mode includes a track racing mode and a conventional driving mode; A control module is used to control a heat exchange mode of a thermal management system according to the determined motion mode, wherein the heat exchange mode includes a first heat exchange mode, a second heat exchange mode, and a third heat exchange mode.

20. A vehicle comprising the thermal management system according to any one of claims 1 to 9 and the control device according to claim 19.

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