Vehicle thermal management system and autonomous vehicle

Abstract

The invention provides a vehicle thermal management system. The vehicle thermal management system comprises a water tank, a flow channel plate, a power assembly and a flow channel control assembly. The runner plate comprises a plurality of runners which are connected with the cavity of the water tank to form a heat management loop, and the heat management loop comprises a first heat management loop and a second heat management loop. The power assemblies comprise the first power assembly and the second power assembly which are used for inputting liquid into the first heat management loop and / or the second heat management loop from the corresponding cavities respectively. The flow channel control assembly comprises a first flow channel control assembly and a second flow channel control assembly which are arranged on the first heat management loop and the second heat management loop respectively and can selectively control connection and disconnection of the first heat management loop and the second heat management loop. In addition, the invention further provides an automatic driving vehicle. One or more heat management loops can be selected to be effective according to actual needs, heat management of the whole vehicle can be achieved, and multi-configuration of the heat management loops is considered.

Description

Technical Field

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

[0002] As technology continues to update and iterate, new vehicles, such as self-driving vehicles, are emerging. The power of the chips used in self-driving vehicles is getting higher and higher, and the power consumption is increasing accordingly, and the heat generation efficiency of the chips is also increasing. Therefore, it is necessary to dissipate heat from the data processing chips in a timely manner. At the same time, self-driving vehicles use a variety of perception sensors and super-powerful domain controllers. Self-driving vehicles need to dissipate heat from sensors and super-powerful domain controllers during driving. In addition, the normal operating temperature standards of data processing chips, sensors, and super-powerful domain controllers are different.

[0003] The heat dissipation measures generally adopted by existing autonomous driving vehicles are generally divided into: air cooling, water cooling and direct cooling. Among them, the air cooling solution is limited by size, noise, vibration and other issues, and cannot take into account the iteration of new technologies. The direct cooling solution has the disadvantages of poor reliability, high structural requirements, and difficulty in control in different seasons. The water cooling solution has the advantages of small size, strong reliability, energy recovery, and strong compatibility. Therefore, it is recommended to use a water cooling solution for autonomous driving domain controllers and sensors. However, the existing water cooling solution is to perform thermal management on the entire vehicle, which cannot take into account autonomous driving vehicles. There is also a passive cooling solution for autonomous driving vehicles, that is, to uniformly cool all temperature-controlled devices. As a result, the temperature of some temperature-controlled devices is inconsistent with the normal operating temperature standard. Therefore, the existing water cooling solution cannot process different temperature-controlled devices to the corresponding normal operating temperature standards. Summary of the invention

[0004] The present application provides a vehicle thermal management system and an autonomous driving vehicle that can achieve both whole-vehicle thermal management and multi-configuration management.

[0005] In a first aspect, the present application provides a vehicle thermal management system including the temperature-controlled devices including a first group of temperature-controlled devices and / or a second group of temperature-controlled devices; the vehicle thermal management system includes: a water tank, wherein a plurality of chambers are provided in the water tank, including a first chamber and a second chamber, wherein the first chamber and the second chamber store liquid; a flow channel plate, wherein the flow channel plate includes a plurality of flow channels, wherein the plurality of flow channels are connected to the chambers of the water tank to form a thermal management circuit, wherein the thermal management circuit includes a first thermal management circuit and a second thermal management circuit, wherein the first thermal management circuit is used for the first group of temperature-controlled devices; and the second thermal management circuit A thermal management circuit is used for the second group of temperature-controlled devices; a power component, including a first power component and a second power component and respectively arranged on the first thermal management circuit and the second thermal management circuit, is used to input the liquid from the corresponding chamber into the first thermal management circuit and / or the second thermal management circuit; a flow channel control component, including a first flow channel control component and a second flow channel control component and respectively arranged on the first thermal management circuit and the second thermal management circuit, can selectively control the first thermal management circuit and the second thermal management circuit to be turned on and off, so as to perform heat exchange on the first group of temperature-controlled devices and the second temperature-controlled devices.

[0006] In a second aspect, the present application provides an autonomous driving vehicle, comprising a vehicle body and a vehicle thermal management system disposed on the vehicle body.

[0007] The above vehicle thermal management system and the autonomous driving vehicle are provided with multiple thermal management loops, so that one or more thermal management loops can be selected as effective according to actual needs, and the multiple thermal management loops can be controlled separately, which can not only realize the thermal management of the whole vehicle but also take into account the multiple configurations of the thermal management loops, which is more flexible. And because the multiple thermal management loops can be controlled separately, the temperature of each group of temperature-controlled components can be controlled more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application.

[0009] For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0010] Figure 1 A schematic diagram of the internal principles of a vehicle thermal management system provided in an embodiment of the present application.

[0011] Figure 2a A schematic diagram of the internal principle of a water tank is provided for the first embodiment of the present application.

[0012] Figure 2b A schematic diagram of the internal principle of a water tank is provided for the second embodiment of the present application.

[0013] Figure 3 This is a schematic diagram of the internal principles of the first embodiment of the vehicle thermal management system of the present application.

[0014] Figure 4 This is a schematic diagram of the internal principles of the second embodiment of the vehicle thermal management system of the present application.

[0015] Figure 5 This is a schematic diagram of the internal principles of the third embodiment of the vehicle thermal management system of the present application.

[0016] Figure 6 This is a schematic diagram of the internal principles of the fourth embodiment of the vehicle thermal management system of the present application.

[0017] Figure 7 This is a schematic diagram of the internal principles of the fifth embodiment of the vehicle thermal management system of the present application.

[0018] Figure 8 A perspective view of a vehicle thermal management system with a cooling and heating configuration provided for this application.

[0019] Fig. 9 for Figure 8 Exploded perspective view of the vehicle thermal management system shown.

[0020] Fig.10 A perspective view of a vehicle thermal management system with a cooling-only configuration provided for this application.

[0021] Fig.11 Schematic diagram of the autonomous driving vehicle provided for this application.

[0022] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0024] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar planning objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate. In other words, the described embodiments are implemented according to an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations may also include other content. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to only those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] Please see Figure 1 and Figure 8 , Figure 8 A three-dimensional diagram of the vehicle thermal management system 1 provided in the present application. Figure 1 : is a schematic diagram of the internal principle of the vehicle thermal management system 1. Among them, the vehicle thermal management system 1 is provided with multiple thermal management loops. During use, one or more of the multiple thermal management loops can be used to perform thermal management on the autonomous driving vehicle. That is to say, the vehicle thermal management system 1 can make the autonomous driving vehicle have only one thermal management loop according to the thermal management requirements of the autonomous driving vehicle, and uniformly thermally manage the temperature-controlled devices set on this thermal management loop of the autonomous driving vehicle; it can also make the autonomous driving vehicle have multiple loops at the same time, and separately thermally manage the temperature-controlled devices set on each thermal management loop. In this way, the vehicle thermal management system 1 not only realizes the thermal management of the whole vehicle but also takes into account the multi-configuration management of the vehicle thermal management. The following is an example of a vehicle thermal management system 1 having two thermal management loops, namely the first thermal management loop and the second thermal management loop. It can be understood that the vehicle thermal management system can also include more than two loops, such as the third thermal management loop, the fourth thermal management loop..., etc., which are not listed here one by one. In this embodiment, the temperature-controlled device is a temperature-controlled device that needs to be thermally managed, including but not limited to a battery P, a motor M, an electric control loop N, a domain controller 700, a perception sensor 800, etc.

[0027] The vehicle thermal management system includes a water tank 100, a flow channel plate 200, a power assembly 300, a flow channel control assembly 400, a heat exchanger 500 and a liquid level sensor 600. Among them, the water tank 100 is used to store liquid for thermal management. The flow channel plate 200 is provided with a plurality of flow channels 201, which are connected with the water tank 100 to form a first thermal management loop L1 and a second thermal management loop L2. The power assembly 300 is used to transport liquid from the water tank 100 to each flow channel 201. The flow channel control assembly 400 is used to control the on and off of the first thermal management loop L1 and the second thermal management loop L2. Specifically, the flow channel control assembly 400 is used to make any one of the first thermal management loop L1 and the second thermal management loop L2 always closed, and the other is intermittently opened and closed, so that the autonomous driving vehicle has only one controllable thermal management loop. The flow channel control assembly 400 is used to make both the first thermal management loop L1 and the second thermal management loop L2 intermittently opened and closed, so that the autonomous driving vehicle has two controllable thermal management loops.

[0028] In this embodiment, the water tank 100 is provided with a plurality of partitions 101 arranged at intervals, for example, two or more partitions 101, so that the water tank 100 is divided into a plurality of chambers 103. The height value of the partition 101 is less than the height of the water tank 100 along the height direction of the partition 101, so that there is a certain gap between the plurality of chambers 103 and the water tank 100. In this example, the liquid level in the water tank 100 is higher than the height of the partition 101, so that the liquid level of each chamber 103 is the same. It can be understood that in some other embodiments, the liquid level in each chamber 103 can be different. For example, in some other embodiments, the partition 101 can completely separate the water tank 100, so that there is no gap between each chamber 103 and the water tank 100, and thus the liquid between each chamber 103 will not be affected by the liquid level of another chamber 103. For another example, in some other embodiments, some chambers 103 can be incompletely separated. In the present embodiment, since the vehicle thermal management system 1 includes a first thermal management loop L1 and a second thermal management loop L2, correspondingly, the chamber 103 includes a first chamber 103a and a second chamber 103b. The first thermal management loop L1 and the second thermal management loop L2 correspond to the first chamber 103a and the second chamber 103b, respectively. In the present embodiment, the liquid may be water, coolant or other substances used for cooling, which are not limited here. When the liquid level is high, the coolant at different temperatures is fully mixed with each chamber in the water tank 100, so that a certain heat exchange effect can be achieved, and a certain temperature of coolant can be provided for heat control in a circuit that has low heating power and is insensitive to water temperature in the medium temperature zone.

[0029] The plurality of flow channels 201 include a main flow channel 201a and a branch flow channel 201b. In the present embodiment, the main flow channel 201a is a flow channel connected to a chamber 103. The branch flow channel 201b is a flow channel connected to the main flow channel 201a. The main flow channel 201a and the branch flow channel 201b form a first thermal management loop L1 or a second thermal management loop L2 according to a preset layout. In other words, the first thermal management loop L1 or the second thermal management loop L2 can be composed of the main flow channel 201a and the branch flow channel 201b. In the present embodiment, one end of the main flow channel 201a connected to the chamber 103 is always kept below the liquid level, so that the first thermal management loop L1 or the second thermal management loop L2 does not inhale air. In the present example, the main flow channel 201a and the branch flow channel 201b are provided with a control port 2010 for cooperating with the flow channel control component 400, as described below.

[0030] In this embodiment, the power assembly 300 includes a plurality of water pumps. In this embodiment, the power assembly includes a first water pump 310 and a second water pump 320. The first water pump 310 and the second water pump 320 are respectively connected to the first thermal management loop L1 and the second thermal management loop L2, and are used to transport the liquid in the first chamber 103a and the second chamber 103b to the corresponding flow channel 201 so that the liquid can flow in the first thermal management loop L1 and the second thermal management loop L2.

[0031] In this embodiment, the flow channel control component 400 includes a first flow channel control component and a second flow channel control component. The first flow channel control component is used to turn on and off the first thermal management loop L1. The second flow channel control component is used to turn on and off the second thermal management return L2. In this embodiment, the first flow channel control component and the second flow channel control component are also components that enable the autonomous driving vehicle to have one thermal management loop or two thermal management loops.

[0032] For example, the autonomous driving vehicle adopts a single-loop thermal management configuration, that is, only one thermal management loop is needed, so one of the first thermal management loop L1 and the second thermal management loop L2 can be normally closed, that is, one of the loops is invalidated; while the other loop is valid, that is, it is intermittently opened and closed according to the thermal management requirements to achieve the circulation or blocking of the liquid, thereby achieving thermal management of the temperature-controlled device in the thermal management loop. Specifically, taking the single-loop thermal management configuration as an example, for example, the first thermal management loop L1 is an invalid loop, and the second thermal management loop L2 is a valid loop. In this embodiment, the first flow channel control component includes a blocking component 401. The blocking component 401 is used to block the flow channel of the first thermal management loop L1, so that the liquid cannot flow in the first thermal management loop L1, thereby making the first thermal management loop L1 invalid. In some other feasible embodiments, the first flow channel control component includes a plurality of valve switches 402, each valve switch 402 includes an open and closed state. In this embodiment, one or more of the first valve switches 402 are always kept in a normally closed state, so that the liquid cannot flow in the first thermal management loop L1, thereby making the first thermal management loop L1 invalid. Preferably, the first first valve switch 402 is in a normally closed state, and the first valve switch 402 is the first valve switch 402 of the main flow channel 201a. Once the first first valve switch 402 is closed, no liquid will flow in the first thermal management loop L1. Correspondingly, the second flow channel control component includes a plurality of second valve switches 404, each second valve switch 404 includes an open and closed state. Each second valve switch 404 controls the liquid to flow to each branch flow channel 201b or stops flowing to each branch flow channel 201b, thereby performing thermal management on the temperature-controlled device on each branch flow channel 201b.

[0033] For another example, since the operating temperature standards of the temperature-controlled devices are different, different thermal management schemes need to be adopted for thermal management, that is, each temperature-controlled device needs to be thermally managed according to different thermal management schemes. In other words, the temperature-controlled devices are divided according to the operating temperature standards, and the devices with basically the same operating temperature standards are divided into the same group, and the devices with large differences in operating temperature standards are divided into different groups. In this embodiment, taking the temperature-controlled devices being divided into two groups as an example, the first group of temperature-controlled devices is thermally managed by the first thermal management loop L1, and the second group of temperature-controlled devices is thermally managed by the second thermal management loop L2. That is to say, both the first thermal management loop L1 and the second thermal management loop L2 are effective, and the first flow channel control component includes a plurality of first valve switches 402, each of which includes an open and closed state. In this embodiment, the plurality of first valve switches 402 are intermittently opened and closed, thereby controlling the liquid to flow to each branch flow channel 201b of the first thermal management loop L1 or stop flowing to each branch flow channel 201b of the first thermal management loop L1, thereby performing thermal management on the temperature-controlled device on each branch flow channel 201b. Correspondingly, the second flow channel control component includes a plurality of second valve switches 404, each of which includes an open and closed state. Each second valve switch 404 controls the liquid to flow to each branch flow channel 201b or stop flowing to each branch flow channel 201b, thereby performing thermal management on the temperature-controlled device on each branch flow channel 201b.

[0034] It is understandable that if during a specific design process, one of the branch flow channels 201b is not needed, the blocking component 401 may also be used for blocking.

[0035] In this embodiment, the flow channel control component 400 makes the first thermal management loop L1 or the second thermal management loop L2 effective or invalid, and when the first thermal management loop L1 and the second thermal management loop L2 are effective, controls the on-off of each main flow channel 201a and branch flow channel 201b of the first thermal management loop L1 or the second thermal management loop L2, so that a vehicle thermal management system 1 presents multiple forms, thereby achieving flexible configuration and adapting to diverse thermal management solution requirements.

[0036] In this embodiment, the heat exchanger 500 includes a cooling heat exchanger 510 and a heating heat exchanger 520. In this embodiment, it is only indicated that the cooling heat exchanger 510 and the heating heat exchanger 520 are arranged in parallel on the first thermal management loop L1, that is, the first thermal management loop L1 and the second thermal management return L2 are in a cooling and heating mode. In some feasible embodiments, the cooling heat exchanger 510 and the heating heat exchanger 520 can also be arranged in parallel in the second thermal management loop L2. In other words, the second thermal management return L2 is in a cooling and heating mode.

[0037] Please see Fig.10 In some feasible embodiments, the heat exchanger 500 of the vehicle thermal management system only includes a cooling heat exchanger 510, such as Fig.10 The vehicle thermal management system 1' is shown. That is, the first thermal management loop L1 and the second thermal management return L2 of the vehicle thermal management system 1' are in a single cooling mode. Specifically, the vehicle thermal management system 1' replaces the heating heat exchanger 520 of the vehicle thermal management system 1 with the plugging component 401, thereby retaining the cooling heat exchanger 510, thereby realizing a diversified design of the heat exchange mode.

[0038] It is understandable that in some feasible embodiments, the heat exchanger 500 can also be omitted, that is, the liquid does not need to be heated or cooled through the heat exchanger to perform thermal management on the temperature-controlled device, but the temperature-controlled device is directly managed by the temperature of the liquid itself.

[0039] The vehicle thermal management system 1 further includes one or more liquid level sensors 600 and alarms.

[0040] Please see Figure 2a , Figure 2a : is an internal schematic diagram of the water tank 100. In this embodiment, a liquid level sensor 600 is provided in the water tank 100 for sensing the liquid level in each chamber 103. Specifically, when the liquid level value sensed by the liquid level sensor 600 is in the first liquid level range, it is detected that the first thermal management circuit L1 and the second thermal management circuit L2 have no leakage. When the liquid level value sensed by the liquid level sensor is in the second liquid level range, it is detected that one of the first thermal management circuit L1 and the second thermal management circuit L2 has leakage, and the alarm (not shown) is triggered to issue a first alarm. When the liquid level value sensed by the liquid level sensor 600 is in the third liquid level range, it is detected that both the first thermal management circuit L1 and the second thermal management circuit L2 have leakage, and the alarm is triggered to issue a second alarm. Among them, the value of the first liquid level range is greater than the value of the second liquid level range, and the value of the second liquid level range is greater than the range of the third liquid level value. In other words, one liquid level sensor 600 can sense whether multiple circuits have leakage, saving devices.

[0041] Please see Figure 2bIn some feasible embodiments, each chamber 103 is provided with a liquid level sensor 600 to sense the liquid level of the corresponding chamber 103. When the liquid level values ​​sensed by the liquid level sensor 600 are all within the first liquid level range, it is detected that there is no leakage in the first thermal management circuit L1 and the second thermal management circuit L2. When the liquid level value sensed by one of the two liquid level sensors 600 is within the first liquid level range and the liquid level value sensed by the other is lower than the first liquid level range, it is detected that one of the first thermal management circuit L1 and the second thermal management circuit L2 has a leakage, and the alarm is triggered to issue a first alarm. When the liquid level values ​​sensed by the two liquid level sensors 600 are all lower than the first liquid level range, it is detected that there is leakage in both the first thermal management circuit L1 and the second thermal management circuit L2, and the alarm is triggered to issue a second alarm to ensure safety redundancy.

[0042] In this embodiment, the first group of components to be temperature controlled is the domain controller 700, and the second group of components to be temperature controlled is the sensing sensor 800. The domain controller 700 has a first preset operating temperature threshold, and the first preset operating temperature threshold includes a first preset operating temperature upper threshold and a first preset operating temperature lower threshold. When the temperature of the domain controller 700 is lower than the first preset operating temperature lower threshold, the domain controller 700 needs to be heated, that is, the heating heat exchanger 520 works; when the temperature of the domain controller 700 is higher than the first preset operating temperature upper threshold, the domain controller 700 needs to be cooled, that is, the cooling heat exchanger 510 works.

[0043] The sensing sensor 800 has a second preset operating temperature threshold, which includes a second preset operating temperature upper threshold and a second preset operating temperature lower threshold. When the temperature of the sensing sensor 800 is lower than the second preset operating temperature lower threshold, the sensing sensor 800 needs to be heated, that is, the heating heat exchanger 520 works; when the temperature of the sensing sensor 800 is higher than the second preset operating temperature upper threshold, the sensing sensor 800 needs to be cooled, that is, the cooling heat exchanger 510 works.

[0044] In the above embodiments, the vehicle thermal management system 1 can be configured according to actual needs in specific applications, that is, the vehicle thermal management system 1 can also allow users to configure various types of vehicle thermal management systems. The following uses several embodiments as examples to illustrate how the vehicle thermal management system 1 can achieve diversified configurations.

[0045] Please see Figure 3, which is a schematic diagram of the internal principle of the first embodiment of the vehicle thermal management system of the present application. In this embodiment, the vehicle thermal management system S1 includes a first thermal management loop L1 and a second thermal management loop L2. Among them, the first thermal management loop L1 and the second thermal management loop L2 are effective. The first group of components to be temperature controlled are sensing sensors 1...sensing sensors N, and the second group of components to be temperature controlled are electric control loops 1...electric control loops N. The vehicle thermal management system S1 only includes a refrigeration heat exchanger 510 and a liquid level sensor 600. Among them, the refrigeration heat exchanger 510 is only arranged in the first thermal management loop L1.

[0046] Please see Figure 4 , which is a schematic diagram of the internal principle of the second embodiment of the vehicle thermal management system of the present application. The difference between the vehicle thermal management system S2 and the vehicle thermal management system S1 is that the vehicle thermal management system S2 includes a cooling heat exchanger 510 and a heating heat exchanger 520, so that the first thermal management loop L1 can be cooled or heated. The second thermal management loop L2 in the vehicle thermal management system S2 is blocked, so that the second thermal management loop L2 is invalid, and only the first thermal management loop L1 is valid. The first thermal management loop L1 is used to cool or heat the first group of temperature-controlled devices and the second group of temperature-controlled devices at the same time.

[0047] Please see Figure 5 , which is a schematic diagram of the internal principle of the third embodiment of the vehicle thermal management system of the present application. The difference between the vehicle thermal management system S3 and the vehicle thermal management system S1 is that the second thermal management loop L2 in the vehicle thermal management system S3 is blocked, thereby making the second thermal management loop L2 invalid, and only the first thermal management loop L1 is valid, and the first thermal management loop L1 is used to cool the first group of temperature-controlled devices and the second group of temperature-controlled devices at the same time.

[0048] Please see Figure 6 , which is a schematic diagram of the internal principle of the fourth embodiment of the vehicle thermal management system of the present application. The difference between the vehicle thermal management system S4 and the vehicle thermal management system S3 is that the first thermal management loop L1 and the second thermal management loop L2 in the vehicle thermal management system S4 are both effective, and the heat exchanger 500 of the vehicle thermal management system S4 adopts a refrigerant water cooling heat exchanger.

[0049] Please see Figure 7 , which is a schematic diagram of the internal principle of the fifth embodiment of the vehicle thermal management system of the present application. The difference between the vehicle thermal management system S4 and the vehicle thermal management system S3 is that the heat exchanger 500 of the vehicle thermal management system S4 adopts a multi-channel heat exchanger.

[0050] It can be seen from the above embodiments that when the vehicle thermal management system 1 provided by the present application is used, the first thermal management loop L1 and / or the second thermal management loop L2 can be used according to actual needs, and the heat exchanger 500 can be set to single cooling, single heating and cooling and heating modes, and the heat exchanger 500 can be set to single flow channel and multiple flow channels. In addition, the transducer 500 can also use different media, such as refrigerant water or water as a coolant. Therefore, the vehicle thermal management system provided by the above embodiments makes the thermal management method more flexible and changeable, realizes the "full liquid cooling solution" or "partial liquid cooling solution" of automatic driving, and realizes the characteristics of multi-configuration management.

[0051] Please see Fig.11 , which is a schematic diagram of an autonomous driving vehicle 2 to which the above vehicle management system is applied. The vehicle 2 includes a vehicle body 21 and a vehicle thermal management system 1 disposed on the vehicle body 21. The structure of the vehicle thermal management system 1 can refer to the contents described in the above vehicle thermal management system 1, which will not be repeated here.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0053] The above examples are only preferred embodiments of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A vehicle thermal management system for controlling the temperature of a device to be temperature-controlled, characterized in that: The temperature-controlled devices include a first group of temperature-controlled devices and / or a second group of temperature-controlled devices; the vehicle thermal management system includes: A water tank, wherein a plurality of chambers are provided in the water tank, including a first chamber and a second chamber, wherein the first chamber and the second chamber store liquid; A flow channel plate, wherein the flow channel plate comprises a plurality of flow channels, wherein the plurality of flow channels are connected to the chamber of the water tank to form a thermal management circuit, wherein the thermal management circuit comprises a first thermal management circuit and a second thermal management circuit, wherein the first thermal management circuit is used for a first group of temperature-controlled devices; and the first thermal management circuit is used for a second group of temperature-controlled devices; A power assembly, comprising a first power assembly and a second power assembly and respectively disposed on the first thermal management circuit and the second thermal management circuit, for inputting the liquid from the corresponding chamber into the first thermal management circuit and / or the second thermal management circuit; The flow channel control component includes a first flow channel control component and a second flow channel control component and is respectively arranged on the first thermal management circuit and the second thermal management circuit, and can selectively control the on and off of the first thermal management circuit and the second thermal management circuit.

2. The vehicle thermal management system according to claim 1, characterized in that: The vehicle thermal management system also includes a heat exchanger, which includes a first heat exchanger and a second heat exchanger. The first heat exchanger and the second heat exchanger are respectively arranged on the first thermal management circuit and the second thermal management circuit to exchange heat between the liquid in the first thermal management circuit and the second thermal management flow channel.

3. The vehicle thermal management system according to claim 1, characterized in that: The first thermal management loop and the second thermal management loop are provided with a plurality of control ports, and the flow channel control component is used to control the control ports to realize the switching on and off of the first thermal management loop and the second thermal management loop.

4. The vehicle thermal management system according to claim 3, characterized in that: The flow channel control component includes a valve switch, which is arranged at the control port and is controlled to open and close during the operation of the thermal management system.

5. The vehicle thermal management system according to claim 4, characterized in that: The valve switch in the first thermal management loop or the second thermal management loop is in a normally closed state.

6. The vehicle thermal management system according to claim 3, characterized in that: The flow channel control component includes a blocking component, which blocks the control port to disconnect one of the first circuit and the second circuit.

7. The vehicle thermal management system according to claim 1, characterized in that: The plurality of flow channels include a main flow channel and branch flow channels. The main flow channel is located below the liquid level of the water tank, and the liquid flows from the main flow channel to the branch flow channel.

8. The vehicle thermal management system according to claim 1, characterized in that: A gap is formed between the multiple chambers and the water tank, and a liquid level sensor is provided in each chamber or only one chamber for detecting whether the first thermal management circuit and the second thermal management circuit are leaking.

9. The vehicle thermal management system according to claim 1, characterized in that: The vehicle thermal management system also includes an alarm. When only one chamber is provided with a liquid level sensor, the liquid level value sensed by the liquid level sensor is in a first liquid level range, detecting that there is no leakage in the first thermal management circuit and the second thermal management circuit; the liquid level value sensed by the liquid level sensor is in a second liquid level range, detecting that one of the first thermal management circuit and the second thermal management circuit has a leakage, triggering the alarm to issue a first alarm; the liquid level value sensed by the liquid level sensor is in a third liquid level range, detecting that there is leakage in both the first thermal management circuit and the second thermal management circuit, triggering the alarm to issue a second alarm, wherein the value of the first liquid level range is greater than the value of the second liquid level range, and the value of the second liquid level range is greater than the range of the third liquid level value.

10. The vehicle thermal management system according to claim 1, characterized in that: The first group of temperature-controlled components and the second group of temperature-controlled components have different preset operating temperature thresholds.

11. The vehicle thermal management system according to claim 1, characterized in that: The preset operating temperature threshold includes a preset operating temperature lower threshold and a preset operating temperature upper threshold; when the temperature of the device to be temperature controlled reaches the preset operating temperature upper threshold, the device to be temperature controlled is cooled by the heat exchanger; when the temperature of the device to be temperature controlled reaches the preset operating temperature lower threshold, the device to be temperature controlled is heated by the heat exchanger.

12. An autonomous driving vehicle, characterized in that: include: body, and A vehicle thermal management system as claimed in any one of claims 1 to 11.

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