Vehicle thermal management system and vehicle

Abstract

The utility model discloses a vehicle heat management system and a vehicle. The vehicle heat management system comprises an electric drive assembly, an electric drive heat dissipation branch, an intercooling heat dissipation branch and a three-way valve. Wherein the intercooling heat dissipation branch is connected with the electric heat dissipation branch in parallel, and a first valve port and a second valve port of the three-way valve are connected with the electric heat dissipation branch and the intercooling heat dissipation branch; the electric drive heat dissipation branch and the intercooling heat dissipation branch are arranged to be of a parallel structure, the three-way valve is used for controlling the access state of the electric drive heat dissipation branch and the intercooling heat dissipation branch, and therefore the three-way valve can be closed at the low temperature so that heat generated by an electric drive assembly and heat generated by an engine intercooler can be reserved in a system; the water temperature and the oil temperature of the electric drive assembly are rapidly heated, the low-temperature power consumption loss of the electric drive assembly is reduced, and the temperature of turbocharging gas is increased or maintained. And the three-way valve can be opened to cool the cooling liquid of the heat dissipation loop of the electric drive assembly, so that the heat dissipation of the electric drive assembly is realized.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle thermal management, and in particular to a vehicle thermal management system and a vehicle. Background Art

[0002] With the continuous development of new energy vehicle technology, the number of components involved in the thermal management system of new energy vehicles is increasing, and the corresponding structure is becoming more and more complex. For extended-range and hybrid vehicles, the viscosity of the cooling oil of the oil-cooled motor increases in low-temperature environments, which increases the power consumption of the oil pump, and the oil stirring power loss of the reducer and rotor is large, which significantly affects the efficiency of the motor assembly. In addition, with the increasing application of turbocharging technology, more and more extended-range and hybrid vehicles are equipped with turbocharging systems. For turbocharging systems, turning on EGR when the ambient temperature is low will cause the water vapor in the exhaust gas to be cooled into water droplets. When it enters the turbocharger, it causes corrosion and affects the life of the turbocharger. When the water droplets enter the intake manifold, they will also cause combustion instability. Therefore, there is a need for a thermal management system that can keep the motor assembly and turbocharged gas warm in low-temperature environments. Utility Model Content

[0003] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide a vehicle thermal management system and a vehicle.

[0004] According to one aspect of the present application, a vehicle thermal management system is provided, comprising: an electric drive assembly, the electric drive assembly being used to provide driving force for the vehicle; an electric drive heat dissipation branch; wherein the electric drive heat dissipation branch comprises an electric drive radiator, the electric drive radiator and the electric drive assembly are connected in series through pipelines to form an electric drive heat dissipation circuit; an intercooler heat dissipation branch, the intercooler heat dissipation branch is connected in parallel with the electric drive heat dissipation branch; wherein the intercooler heat dissipation branch comprises an engine intercooler, the engine intercooler being used to dissipate heat from turbocharged gas; a three-way valve, the first valve port and the second valve port of the three-way valve are respectively connected to the first connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch; a three-way pipe, the first pipe port and the second pipe port of the three-way pipe are respectively connected to the second connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch; wherein the third valve port of the three-way valve is connected to the third pipe port of the three-way pipe.

[0005] In one embodiment, the vehicle thermal management system further includes: an electrically driven water pump, the electrically driven water pump being connected to the electrically driven heat dissipation branch via the three-way valve, the electrically driven water pump being used to drive the flow of coolant in the electrically driven heat dissipation circuit.

[0006] In one embodiment, the intercooler heat dissipation branch further includes: an intercooler radiator, which is used to adjust the temperature of water entering the engine intercooler to ensure that the outlet temperature of the engine intercooler reaches a target value.

[0007] In one embodiment, the intercooler radiator and the electric drive radiator are arranged in layers along the length direction of the vehicle, and the intercooler radiator is close to the front of the vehicle.

[0008] In one embodiment, in the height direction of the vehicle, the height of the intercooler radiator is smaller than the height of the electric drive radiator.

[0009] In one embodiment, the vehicle thermal management system further includes: an engine cooling circuit; wherein the engine cooling circuit includes an engine cooling water jacket and accessories, an engine water pump, and an exhaust gas cooler.

[0010] In one embodiment, the engine heat dissipation circuit further includes: an engine radiator, the intercooler radiator, the electric drive radiator and the engine radiator are arranged in layers in sequence along the length direction of the vehicle, and the intercooler radiator is close to the front of the vehicle.

[0011] In one embodiment, the electric drive heat dissipation branch further includes: a cooling kettle, which is arranged in parallel or in series with the electric drive radiator and is used to store coolant.

[0012] In one embodiment, the electric drive assembly includes a front drive assembly and a rear drive assembly connected in parallel.

[0013] According to another aspect of the present application, a vehicle is provided, comprising the vehicle thermal management system as described in any one of the above items.

[0014] The present application provides a vehicle thermal management system and a vehicle, comprising an electric drive assembly, an electric drive heat dissipation branch, an intercooler heat dissipation branch, a three-way valve and a three-way pipe; wherein the electric drive assembly is used to provide driving force for the vehicle, the electric drive heat dissipation branch comprises an electric drive radiator, the electric drive radiator and the electric drive assembly are connected in series through pipes to form an electric drive heat dissipation circuit, the intercooler heat dissipation branch is connected in parallel with the electric drive heat dissipation branch, the intercooler heat dissipation branch comprises an engine intercooler, the engine intercooler is used to dissipate heat for turbocharged gas, the first valve port and the second valve port of the three-way valve are respectively connected to the first connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, the first pipe port and the second pipe port of the three-way pipe are respectively connected to the electric drive heat dissipation branch The third valve port of the three-way valve is connected to the third pipe port of the three-way pipe; that is, the electric drive heat dissipation branch and the intercooler heat dissipation branch are set to a parallel structure, and the three-way valve and the three-way pipe are used to control the access status of the electric drive heat dissipation branch and the intercooler heat dissipation branch, so that the three-way valve can be closed at low temperatures to ensure that the heat generated by the electric drive assembly and the heat generated by the engine intercooler are retained inside the system, so as to achieve rapid heating of the water temperature and oil temperature of the electric drive assembly, reduce its low-temperature power consumption loss, and increase or maintain the temperature of the turbocharged gas; and the three-way valve can be opened to cool the coolant in the heat dissipation circuit of the electric drive assembly to achieve heat dissipation of the electric drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other purposes, features, and advantages of the present application will become more apparent through a more detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0016] Figure 1 It is a structural diagram of vehicle thermal management provided by an exemplary embodiment of the present application.

[0017] Figure 2 It is a structural diagram of vehicle thermal management provided by another exemplary embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the radiator structure for vehicle thermal management provided by an exemplary embodiment of the present application.

[0019] Explanation of the accompanying symbols: 1. Electric drive assembly; 2. Three-way valve; 3. Three-way pipe; 4. Electric drive radiator; 5. Engine intercooler; 6. Electric drive water pump; 7. Intercooler radiator; 8. Engine cooling water jacket and accessories; 9. Engine water pump; 10. Exhaust gas cooler; 11. Cooling kettle; 12. Front drive assembly; 13. Rear drive assembly. DETAILED DESCRIPTION

[0020] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described herein.

[0021] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] Figure 1 This is a schematic diagram of the structure of vehicle thermal management provided by an exemplary embodiment of the present application. Figure 1 As shown, a vehicle thermal management system includes: an electric drive assembly 1, an electric drive heat dissipation branch, an intercooler heat dissipation branch, a three-way valve 2 and a three-way pipe 3, wherein the electric drive assembly 1 is used to provide driving force for the vehicle, the electric drive heat dissipation branch includes an electric drive radiator 4, the electric drive radiator 4 and the electric drive assembly 1 are connected in series through pipelines to form an electric drive heat dissipation circuit, the intercooler heat dissipation branch is connected in parallel with the electric drive heat dissipation branch, the intercooler heat dissipation branch includes an engine intercooler 5, and the engine intercooler 5 is used to dissipate heat for turbocharged gas, the first valve port and the second valve port of the three-way valve 2 are respectively connected to the first connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, the first pipe port and the second pipe port of the three-way pipe 3 are respectively connected to the second connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, and the third valve port of the three-way valve 2 is connected to the third pipe port of the three-way pipe 3.

[0024] The vehicle thermal management system provided in this application is applied to a hybrid or extended-range vehicle, which includes an engine and an electric drive assembly 1 (consisting of a motor and a battery). The electric drive assembly 1 generates heat during operation. In order to ensure that the electric drive assembly 1 operates within a suitable operating temperature range, a heat dissipation circuit is required to dissipate heat from the electric drive assembly 1. The present application forms an electric drive heat dissipation circuit by setting an electric drive heat dissipation branch and an electric drive assembly 1 (specifically, a heat dissipation structure in the electric drive assembly, such as a motor cooling channel and a battery cooling channel, etc.) in series to achieve heat dissipation treatment of the electric drive assembly 1; at the same time, the present application sets the intercooler heat dissipation branch to be connected in parallel with the electric drive heat dissipation branch, thereby achieving heat exchange between the intercooler heat dissipation branch and the electric drive heat dissipation branch to improve the heat utilization rate of the entire vehicle; and the present application sets a three-way valve 2 and a three-way pipe 3 at the first connection end and the second connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, respectively, and uses the first valve port and the second valve port of the three-way valve 2 to respectively connect the first connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, and the first pipe port and the second pipe port of the three-way pipe 3 to respectively connect the second connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, and the third valve port of the three-way valve 2 is connected to the third pipe port of the three-way pipe 3.

[0025] By utilizing the above structure, the present application can close the first valve port of the three-way valve 2 and open the second valve port and the third valve port of the three-way valve 2 when the electric drive assembly 1 is in a low temperature environment, so that the coolant in the electric drive assembly 1 does not pass through the electric drive radiator 4, so that the heat generated by the electric drive assembly 1 during operation can be retained in the electric drive assembly 1, so as to quickly heat the motor transmission and the coolant inside the motor, so that their temperature rises rapidly, thereby reducing the viscosity and the power consumption of the oil pump, and the oil stirring loss of the motor transmission; the present application can also close the first valve port and the third valve port of the three-way valve 2 and open the second valve port of the three-way valve 2 when the temperature of the electric drive assembly 1 rises and the turbocharged gas needs to be heated, so that the heat of the electric drive assembly 1 only flows through the intercooler heat dissipation branch to heat the turbocharged gas; the present application can also open the first valve port, the second valve port and the third valve port of the three-way valve 2 when the temperature of the electric drive assembly 1 is high, so that the electric drive heat dissipation branch is incorporated into the circulation loop to dissipate heat from the electric drive assembly 1.

[0026] It should be understood that the present application can also adjust the flow of the corresponding channel by controlling the opening degree of each valve port of the three-way valve 2, thereby achieving precise control of the flow of the electric drive cooling branch and the intercooler cooling branch, so as to more accurately control the temperature of the electric drive assembly 1 and the turbocharged gas.

[0027] A vehicle thermal management system provided by the present application includes an electric drive assembly 1, an electric drive heat dissipation branch, an intercooler heat dissipation branch, a three-way valve 2 and a three-way pipe 3; wherein, the electric drive assembly 1 is used to provide driving force for the vehicle, the electric drive heat dissipation branch includes an electric drive radiator 4, the electric drive radiator 4 and the electric drive assembly 1 are connected in series through pipelines to form an electric drive heat dissipation circuit, the intercooler heat dissipation branch is connected in parallel with the electric drive heat dissipation branch, the intercooler heat dissipation branch includes an engine intercooler 5, and the engine intercooler 5 is used to dissipate heat for turbocharged gas, the first valve port and the second valve port of the three-way valve 2 are respectively connected to the first connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, the first pipe port and the second pipe port of the three-way pipe 3 are respectively connected to the electric drive heat dissipation branch The third valve port of the three-way valve 2 is connected to the third pipe port of the three-way pipe 3; that is, the electric drive heat dissipation branch and the intercooler heat dissipation branch are set to a parallel structure, and the three-way valve 2 is used to control the access status of the electric drive heat dissipation branch and the intercooler heat dissipation branch, so that the three-way valve 2 can be closed at low temperatures to ensure that the heat generated by the electric drive assembly 1 and the heat generated by the engine intercooler 5 are retained inside the system, so as to achieve rapid heating of the water temperature and oil temperature of the electric drive assembly 1, reduce its low-temperature power consumption loss, and increase or maintain the temperature of the turbocharged gas; and the three-way valve 2 can be opened to cool the coolant in the heat dissipation circuit of the electric drive assembly 1 to achieve heat dissipation of the electric drive assembly 1.

[0028] In one embodiment, if Figure 2 As shown, the above-mentioned vehicle thermal management system may further include: an electrically driven water pump 6, which is connected to the electrically driven heat dissipation branch through a three-way valve 2, and is used to drive the flow of coolant in the electrically driven heat dissipation circuit.

[0029] The present application sets an electric-driven water pump 6 in the electric-driven heat dissipation branch, so as to utilize the rotation of the electric-driven water pump 6 to drive the flow of coolant in the electric-driven heat dissipation circuit, so that when the coolant flows through the electric-driven assembly 1, the heat of the electric-driven assembly 1 is taken away by heat exchange, and the heat of the coolant is dissipated by the electric-driven radiator 4 before flowing to the electric-driven assembly 1, so as to achieve heat dissipation of the electric-driven assembly 1; and the present application sets the electric-driven water pump 6 on the main circuit of the electric-driven heat dissipation circuit (that is, not in the electric-driven heat dissipation branch and the intercooler heat dissipation branch) to ensure that the electric-driven water pump 6 can drive the flow of coolant in the electric-driven heat dissipation circuit when the three-way valve 2 is closed or opened.

[0030] In one embodiment, if Figure 2 As shown, the intercooler heat dissipation branch may further include an intercooler radiator 7 , which is used to adjust the temperature of water entering the engine intercooler 5 to ensure that the outlet temperature of the engine intercooler 5 reaches a target value.

[0031] In the present application, an intercooler radiator 7 is arranged in the intercooler heat dissipation branch to dissipate heat for the engine intercooler 5. Since the turbocharger outputs the turbocharged gas as high-temperature gas, the high-temperature gas cannot directly enter the manifold. The turbocharged gas is cooled by the engine intercooler 5 to meet the temperature requirement for entering the manifold (reach the target value). In order to meet the heat dissipation effect of the intercooler heat dissipation branch, it is necessary to dissipate the heat in the intercooler heat dissipation branch in time. The intercooler radiator 7 can quickly dissipate the heat in the intercooler heat dissipation branch to enable the engine intercooler 5 to continuously cool the turbocharged gas.

[0032] In one embodiment, if Figure 3 As shown, the intercooler radiator 7 and the electric drive radiator 4 are arranged in layers along the length direction of the vehicle, and the intercooler radiator 7 is close to the front of the vehicle.

[0033] Since the airflow outside the vehicle flows from the front to the rear of the vehicle, the present application arranges the intercooler radiator 7 and the electric drive radiator 4 in layers along the length of the vehicle, that is, the intercooler radiator 7 and the electric drive radiator 4 are arranged front to back along the flow direction of the airflow, thereby utilizing the airflow to remove heat from the intercooler radiator 7 and the electric drive radiator 4 as it flows through them. Since the temperature of the external airflow is lower than that of the intercooler radiator 7 and the electric drive radiator 4, the lower temperature airflow will increase in temperature due to heat exchange when passing through the intercooler radiator 7 and the electric drive radiator 4. Since the temperature of the intercooler radiator 7 is lower than that of the electric drive radiator 4, the present application arranges the intercooler radiator near the front of the vehicle. After the airflow absorbs the heat from the intercooler radiator 7, the airflow temperature will not exceed the temperature of the electric drive radiator 4, so that the airflow can continue to exchange heat with the electric drive radiator 4 to remove heat from the electric drive radiator 4, that is, the intercooler radiator 7 and the electric drive radiator 4 can be cooled by air at the same time.

[0034] In one embodiment, if Figure 3 As shown, in the height direction of the vehicle, the height of the intercooler radiator 7 is smaller than the height of the electric drive radiator 4 .

[0035] From the above analysis, it can be seen that the intercooler radiator 7 has a lower heat dissipation requirement than the electric drive radiator 4. The present application sets the height of the intercooler radiator 7 in the height direction of the vehicle to be smaller than the height of the electric drive radiator 4 in the height direction of the vehicle, thereby minimizing the size of the intercooler radiator 7 while meeting the heat dissipation requirements of the intercooler heat dissipation branch, so as to reduce costs and reduce the space occupancy of the intercooler radiator 7; at the same time, the shorter intercooler radiator 7 can reduce its influence on the airflow blocking of the electric drive radiator 4, thereby further improving the heat dissipation effect of the electric drive radiator 4.

[0036] In one embodiment, if Figure 2As shown, the above vehicle thermal management system may further include: an engine cooling circuit; wherein the engine cooling circuit includes an engine cooling water jacket and accessories 8, an engine water pump 9 and an exhaust gas cooler 10 (EGR cooler).

[0037] The engine heat dissipation circuit of the present application includes an engine heat dissipation water jacket and accessories 8 (including engine cooling flow channels, etc.), an engine water pump 9 and an exhaust gas cooler 10. The engine heat dissipation circuit is used to dissipate heat from the engine, and the exhaust gas cooler 10 is used to cool the high-temperature exhaust gas discharged from the exhaust manifold to reduce the loss of the high-temperature exhaust gas to the pipelines and components. The exhaust gas after passing through the exhaust gas cooler 10 enters the turbocharger after being mixed with the air filter intake air. The high-temperature gas after turbocharging enters the engine intercooler 5 for cooling to achieve a gas temperature that meets the intake manifold temperature requirements, thereby achieving turbocharging and reducing the probability of problems such as loss of pipelines caused by excessive temperature of the turbocharged gas.

[0038] In one embodiment, if Figure 3 As shown, the above-mentioned engine heat dissipation circuit may also include: an engine radiator, an intercooler radiator 7, an electric drive radiator 4 and an engine radiator arranged in layers in sequence along the length direction of the vehicle, and the intercooler radiator is close to the front of the vehicle.

[0039] Since the temperature of the external air flow is lower than that of the intercooler radiator 7, the electric drive radiator 4 and the engine radiator, heat exchange can be performed with the intercooler radiator 7, the electric drive radiator 4 and the engine radiator to take away the heat of the intercooler radiator 7, the electric drive radiator 4 and the engine radiator, and the temperature of the intercooler radiator 7 is lower than that of the electric drive radiator 4, and the temperature of the electric drive radiator 4 is lower than that of the engine radiator. In order to avoid the problem that the temperature of the air flow after passing through the front radiator is higher than that of the rear radiator, resulting in the inability to dissipate heat to the rear radiator, the present application arranges the intercooler radiator 7, the electric drive radiator 4 and the engine radiator in layers along the length direction of the vehicle. The lower temperature air flow passes through the intercooler radiator 7 and exchanges heat with the intercooler radiator 7, and its temperature is lower than the electric drive radiator 4. Therefore, after passing through the electric drive radiator 4, it will continue to exchange heat with the electric drive radiator 4 to reduce the temperature of the electric drive radiator 4, and after passing through the electric drive radiator 4 and exchanging heat with the electric drive radiator 4, its temperature is lower than the engine radiator. Therefore, it can continue to exchange heat with the engine radiator when passing through the engine radiator to reduce the temperature of the engine radiator, thereby achieving simultaneous cooling of the intercooler radiator 7, the electric drive radiator 4 and the engine radiator.

[0040] In one embodiment, if Figure 2 As shown, the above-mentioned electric drive heat dissipation branch can also include: a cooling kettle 11, which is arranged in parallel with the electric drive radiator 4 and is used to store coolant.

[0041] The present application sets a cooling water bottle 11 in parallel with the electric drive radiator 4 in the electric drive heat dissipation circuit, uses the cooling water bottle 11 to store coolant, and replenishes coolant when the coolant in the electric drive heat dissipation circuit is insufficient. At the same time, the non-liquid storage space in the cooling water bottle 11 can also be used to discharge excess air in the electric drive heat dissipation circuit to ensure the heat dissipation effect of the electric drive heat dissipation circuit. It should be understood that the cooling water bottle 11 in the present application can also be set to be connected in series with the electric drive radiator 4. The present application does not limit the specific connection form of the cooling water bottle 11 and the electric drive radiator 4.

[0042] In one embodiment, if Figure 2 As shown, the electric drive assembly 1 may include a front drive assembly 12 and a rear drive assembly 13 connected in parallel.

[0043] The electric drive assembly 1 of the present application may include a front drive assembly 12 and a rear drive assembly 13, and the driving force of the vehicle is improved by the front drive assembly 12 and the rear drive assembly 13, and the front drive assembly 12 and the rear drive assembly 13 are arranged in parallel, and the electric drive heat dissipation circuit is used to simultaneously perform heat dissipation treatment on the front drive assembly 12 and the rear drive assembly 13 to ensure the heat dissipation consistency of the front drive assembly 12 and the rear drive assembly 13, thereby facilitating the performance consistency of the front drive assembly 12 and the rear drive assembly 13. It should be understood that the front drive assembly 12 and the rear drive assembly 13 in the present application may include multiple, such as four-wheel motors, by respectively arranging wheel-side motors at the four wheels to achieve separate drive of the four wheels, thereby improving the driving effect of the vehicle. The present application may connect the two drive systems corresponding to the front wheels in series or in parallel to form the front drive assembly 12, and connect the two drive systems corresponding to the rear wheels in series or in parallel to form the rear drive assembly 13. The present application does not limit the specific structure of the electric drive assembly 1 and the corresponding heat dissipation structure.

[0044] The present application also provides a vehicle comprising any of the vehicle thermal management systems described above.

[0045] A vehicle provided by the present application includes an electric drive assembly, an electric drive heat dissipation branch, an intercooler heat dissipation branch, a three-way valve and a three-way pipe; wherein the electric drive assembly is used to provide driving force for the vehicle, the electric drive heat dissipation branch includes an electric drive radiator, the electric drive radiator and the electric drive assembly are connected in series through pipes to form an electric drive heat dissipation circuit, the intercooler heat dissipation branch is connected in parallel with the electric drive heat dissipation branch, the intercooler heat dissipation branch includes an engine intercooler, and the engine intercooler is used to dissipate heat for turbocharged gas, the first valve port and the second valve port of the three-way valve are respectively connected to the first connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch, the first pipe port and the second pipe port of the three-way pipe are respectively connected to the electric drive heat dissipation branch and The second connection end of the intercooler heat dissipation branch and the third valve port of the three-way valve are connected to the third pipe port of the three-way pipe; that is, the electric drive heat dissipation branch and the intercooler heat dissipation branch are set to a parallel structure, and the three-way valve is used to control the access status of the electric drive heat dissipation branch and the intercooler heat dissipation branch, so that the three-way valve can be closed at low temperatures to ensure that the heat generated by the electric drive assembly and the heat generated by the engine intercooler are retained inside the system, so as to achieve rapid heating of the water temperature and oil temperature of the electric drive assembly, reduce its low-temperature power consumption loss, and increase or maintain the temperature of the turbocharged gas; and the three-way valve can be opened to cool the coolant in the heat dissipation circuit of the electric drive assembly to achieve heat dissipation of the electric drive assembly.

[0046] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0047] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0048] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0049] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0050] The above description has been provided for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A vehicle thermal management system, characterized in that: include: An electric drive assembly, the electric drive assembly is used to provide driving force for the vehicle; An electric drive heat dissipation branch; wherein the electric drive heat dissipation branch includes an electric drive radiator, and the electric drive radiator and the electric drive assembly are connected in series through a pipeline to form an electric drive heat dissipation loop; an intercooler heat dissipation branch, the intercooler heat dissipation branch being connected in parallel with the electric drive heat dissipation branch; wherein the intercooler heat dissipation branch comprises an engine intercooler, the engine intercooler being used to dissipate heat for turbocharged gas; A three-way valve, wherein the first valve port and the second valve port of the three-way valve are respectively connected to the first connection end of the electric drive heat dissipation branch and the first connection end of the intercooler heat dissipation branch; A three-way pipe, wherein the first pipe opening and the second pipe opening of the three-way pipe are respectively connected to the second connection end of the electric drive heat dissipation branch and the intercooler heat dissipation branch; Wherein, the third valve port of the three-way valve is connected to the third pipe port of the three-way pipe.

2. The vehicle thermal management system according to claim 1, characterized in that: The vehicle thermal management system further includes an electrically driven water pump, which is connected to the electrically driven heat dissipation branch via the three-way valve, and is used to drive the flow of coolant in the electrically driven heat dissipation circuit.

3. The vehicle thermal management system according to claim 1, characterized in that: The intercooler heat dissipation branch further includes an intercooler radiator, which is used to adjust the temperature of water entering the engine intercooler to ensure that the outlet temperature of the engine intercooler reaches a target value.

4. The vehicle thermal management system according to claim 3, characterized in that: The intercooler radiator and the electric drive radiator are arranged in layers along the length direction of the vehicle, and the intercooler radiator is close to the front of the vehicle.

5. The vehicle thermal management system according to claim 4, characterized in that: In a height direction of the vehicle, a height of the intercooler radiator is smaller than a height of the electric drive radiator.

6. The vehicle thermal management system according to claim 1, characterized in that: The vehicle thermal management system further includes: an engine cooling circuit; wherein the engine cooling circuit includes an engine cooling water jacket and accessories, an engine water pump and an exhaust gas cooler.

7. The vehicle thermal management system according to claim 6, characterized in that: The engine heat dissipation circuit further includes: an engine radiator, an intercooler radiator, the electric drive radiator and the engine radiator, which are sequentially arranged in layers along the length direction of the vehicle, and the intercooler radiator is close to the front of the vehicle.

8. The vehicle thermal management system according to claim 1, characterized in that: The electric drive heat dissipation branch further includes: a cooling kettle, which is arranged in parallel or in series with the electric drive radiator and is used to store coolant.

9. The vehicle thermal management system according to claim 1, characterized in that: The electric drive assembly includes a front drive assembly and a rear drive assembly connected in parallel.

10. A vehicle, characterized in that: The vehicle thermal management system comprises the vehicle thermal management system according to any one of claims 1 to 9.

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