Hydraulic suspension system and vehicle

Abstract

The utility model discloses a hydraulic suspension system and a vehicle. The hydraulic suspension system comprises a heat dissipation device and a hydraulic suspension system, the battery module comprises a battery pack and a heating piece, the heating piece is used for heating cooling liquid in the battery pack, and the first end of the battery pack is connected with the first end of the heat dissipation device; two ends of the water pump are respectively connected with the second end of the heat dissipation device and the second end of the battery pack; the first valve body is provided with a first valve port, a second valve port and a third valve port, the first valve port is connected with the first end of the battery pack, and the second valve port is connected with the water pump and the second end of the heat dissipation device; and a liquid inlet of the suspension device is connected with the third valve port, and a liquid outlet of the suspension device is connected with the second end of the heat dissipation device. According to the hydraulic suspension system disclosed by the utility model, the suspension device is always kept in a proper working temperature range in different working environments, so that the service life of the suspension device is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a hydraulic mount system and a vehicle. Background Art

[0002] At present, with the rapid development of the automobile industry, people's requirements for the comfort of riding in vehicles are getting higher and higher. Therefore, the mount system in the powertrain is particularly important. In the prior art, a shock-absorbing member made of rubber is usually provided in the mount system. However, in a low-temperature environment, the rubber becomes brittle and hard, and is prone to losing elasticity, reducing the vibration isolation performance of the shock-absorbing member; in a high-temperature environment, the rubber will have problems such as softening, aging, hardening, and degumming, causing the shock-absorbing member to lose its original vibration isolation performance. Thus, when the rubber part is used for a long time in a high-temperature or low-temperature environment, the service life of the part is reduced, and the cost of replacing or repairing the part is increased. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a hydraulic mount system, so that the mount device always maintains within a suitable working temperature range under different working environments, prolongs the service life of the mount device, and reduces the maintenance cost.

[0004] Another object of the utility model is to provide a vehicle including the above hydraulic mount system.

[0005] The hydraulic mount system according to the first aspect embodiment of the utility model includes: a heat dissipation device; a battery module, the battery module includes a battery pack and a heating member, the heating member is used to heat the coolant in the battery pack, and the first end of the battery pack is connected to the first end of the heat dissipation device; a water pump, both ends of the water pump are respectively connected to the second end of the heat dissipation device and the second end of the battery pack; a first valve body, the first valve body has a first valve port, a second valve port and a third valve port, the first valve port is connected to the first end of the battery pack, the second valve port is connected to the water pump and the second end of the heat dissipation device; a mount device, the liquid inlet of the mount device is connected to the third valve port, and the liquid outlet of the mount device is connected to the second end of the heat dissipation device; wherein, the first valve body can be switched between a first state and a second state, when the first valve body is in the first state, the first valve port and the third valve port are communicated, and the heating member works; when the first valve body is in the second state, the second valve port and the third valve port are communicated, and the heat dissipation device works.

[0006] According to the hydraulic mount system of the embodiments of the present utility model, by providing a battery pack, a heat dissipation device and a first valve body with a switchable state, precise control of the temperature of the mount device can be achieved, enabling the mount device to always remain within a suitable working temperature range under different working environments, extending the service life of the mount device and reducing the maintenance cost.

[0007] According to some embodiments of the present utility model, the hydraulic mount system further includes: a controller; a first temperature and pressure sensor, which is provided on the mount device, and the first temperature and pressure sensor is used to detect the temperature of the main spring of the mount device, and the first temperature and pressure sensor is connected to the controller.

[0008] According to some embodiments of the present utility model, the hydraulic mount system further includes: a second valve body, which has a fourth valve port, a fifth valve port and a sixth valve port. The fourth valve port is connected to the first end of the battery pack and the first valve port, the fifth valve port is connected to the first end of the heat dissipation device, and the sixth valve port is connected to the liquid outlet of the mount device; when the first valve body is in the first state, the fifth valve port and the sixth valve port are in communication, and when the first valve body is in the second state, both the fourth valve port and the sixth valve port are in communication with the fifth valve port.

[0009] According to some embodiments of the present utility model, a check valve is provided between the sixth valve port and the liquid outlet of the mount device.

[0010] According to some embodiments of the present utility model, a flow control valve is provided on the heat dissipation device, and a second temperature and pressure sensor is provided between the second end of the heat dissipation device and the water pump. Both the second temperature and pressure sensor and the flow control valve are connected to the controller.

[0011] According to some embodiments of the present utility model, a first three-way valve is provided between the second temperature and pressure sensor and the water pump, and the first three-way valve is connected to a liquid storage tank; wherein, the first three-way valve switches between a third state and a fourth state. When the first three-way valve is in the third state, the second temperature and pressure sensor and the water pump are in communication; when the first three-way valve is in the fourth state, the liquid storage tank and the water pump are in communication.

[0012] According to some embodiments of the present utility model, a second three-way valve is provided between the battery pack and the water pump, and the second three-way valve is connected to the liquid storage tank; wherein, the second three-way valve switches between a fifth state and a sixth state. When the second three-way valve is in the fifth state, the battery pack and the water pump are in communication; when the second three-way valve is in the sixth state, the liquid storage tank and the water pump are in communication.

[0013] According to some embodiments of the present utility model, the heating element is a pulse heater.

[0014] A vehicle according to an embodiment of the second aspect of the present utility model includes a hydraulic mount system according to the above-mentioned first aspect embodiment of the present utility model.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic diagram of a hydraulic mount system according to an embodiment of the present utility model.

[0018] Description of the Reference Numerals in the Drawings:

[0019] 100, hydraulic mount system;

[0020] 01, heat dissipation device; 02, battery module; 021, battery pack; 022, heating element; 03, water pump; 04, first valve body; 041, first valve port; 042, second valve port; 043, third valve port; 05, mount device; 06, first temperature and pressure sensor; 07, second valve body; 071, fourth valve port; 072, fifth valve port; 073, sixth valve port; 08, check valve; 09, flow control valve; 10, second temperature and pressure sensor; 11, first three-way valve; 12, liquid storage tank; 13, second three-way valve. Detailed Embodiments

[0021] The following will describe in detail the embodiments of the present utility model. The embodiments described with reference to the drawings are exemplary. The following will refer to Figure 1 Describe the hydraulic mount system 100 according to the first aspect embodiment of the present utility model.

[0022] As Figure 1 shown, the hydraulic mount system 100 according to the first aspect embodiment of the present utility model includes a heat dissipation device 1, a battery module 2, a water pump 3, a first valve body 4, and a mount device 5.

[0023] Specifically, the battery module 2 includes a battery pack 21 and a heating element 22. The heating element 22 is used to heat the coolant in the battery pack 21. The first end of the battery pack 21 is connected to the first end of the heat dissipation device 1. Both ends of the water pump 3 are respectively connected to the second end of the heat dissipation device 1 and the second end of the battery pack 21. The first valve body 4 has a first valve port 41, a second valve port 42, and a third valve port 43. The first valve port 41 is connected to the first end of the battery pack 21, and the second valve port 42 is connected to the second end of the water pump 3 and the heat dissipation device 1. The liquid inlet of the suspension device 5 is connected to the third valve port 43, and the liquid outlet of the suspension device 5 is connected to the second end of the heat dissipation device 1. Among them, the first valve body 4 can be switched between a first state and a second state. When the first valve body 4 is in the first state, the first valve port 41 and the third valve port 43 are communicated, and the heating element 22 works. When the first valve body 4 is in the second state, the second valve port 42 and the third valve port 43 are communicated, and the heat dissipation device 1 works.

[0024] For example, in Figure 1 the example, both the suspension device 5 and the water pump 3 are arranged between the heat dissipation device 1 and the battery pack 21, and the suspension device 5 and the water pump 3 are respectively located on both sides of the heat dissipation device 1 or the battery pack 21. The liquid inlet of the suspension device 5 can be selectively communicated with the heat dissipation device 1 or the battery pack 21 through the first valve body 4. The water pump 3 is respectively connected to the heat dissipation device 1 and the battery pack 21 to provide power for the flow of the coolant.

[0025] When the operating temperature of the suspension device 5 is relatively low, the first valve body 4 can be made to be in the first state. At this time, the first valve port 41 and the third valve port 43 are communicated, and the heating element 22 starts to work to heat the coolant in the battery pack 21. The heated coolant flows through the first valve port 41 and the third valve port 43 and then flows into the suspension device 5 under the drive of the water pump 3. The heated coolant can increase the operating temperature of the suspension device 5. The coolant flowing out of the suspension device 5 flows back to the battery pack 21 through the heat dissipation device 1 and the water pump 3, and so on in a cycle until the suspension device 5 reaches an appropriate operating temperature.

[0026] When the operating temperature of the suspension device 5 is relatively high, the first valve body 4 can be made to be in the second state. The second valve port 42 and the third valve port 43 are communicated, and the heat dissipation device 1 is made to start working. The coolant flows out of the battery pack 21 and then enters the heat dissipation device 1 for cooling. A part of the coolant flowing out of the heat dissipation device 1 enters the suspension device 5 through the second valve port 42 and the third valve port 43 of the first valve body 4, so as to reduce the operating temperature of the suspension device 5. The coolant flowing out of the suspension device 5 flows back to the battery pack 21 through the heat dissipation device 1 and the water pump 3, and another part of the coolant flows back to the battery pack 21 through the heat dissipation device 1 and the water pump 3, and so on in a cycle until the suspension device 5 reaches an appropriate operating temperature.

[0027] According to the hydraulic mount system 100 of the embodiments of the present utility model, by providing a battery pack 21, a heat dissipation device 1 and a first valve body 4 with a switchable state, precise control of the temperature of the mount device 5 can be achieved, enabling the mount device 5 to always remain within a suitable operating temperature range under different working environments, extending the service life of the mount device 5 and reducing the maintenance cost.

[0028] According to some embodiments of the present utility model, the hydraulic mount system 100 further includes a controller and a first temperature and pressure sensor 6. The first temperature and pressure sensor 6 is provided on the mount device 5. The first temperature and pressure sensor 6 is used to detect the temperature of the main spring of the mount device 5, and the first temperature and pressure sensor 6 is connected to the controller.

[0029] By connecting the first temperature and pressure sensor 6 to the controller, the controller can obtain the temperature information of the main spring in real time and accurately. When the first temperature and pressure sensor 6 detects that the temperature of the main spring is too low, the first valve body 4 can be switched to the first state to heat the main spring; when the first temperature and pressure sensor 6 detects that the temperature of the main spring is too high, the first valve body 4 can be switched to the second state to dissipate heat from the main spring. Thus, it is beneficial to precisely control the operating temperature of the mount device 5 and ensure that the mount device 5 can maintain good performance under various working conditions. In addition, damage to the main spring caused by too high or too low temperature can be avoided, which helps to extend the service life of the mount device 5.

[0030] According to some specific embodiments of the present utility model, the hydraulic mount system 100 further includes a second valve body 7. The second valve body 7 has a fourth valve port 71, a fifth valve port 72 and a sixth valve port 73. The fourth valve port 71 is connected to the first end of the battery pack 21 and the first valve port 41. The fifth valve port 72 is connected to the first end of the heat dissipation device 1. The sixth valve port 73 is connected to the liquid outlet of the mount device 5. When the first valve body 4 is in the first state, the fifth valve port 72 and the sixth valve port 73 are in communication. When the first valve body 4 is in the second state, both the fourth valve port 71 and the sixth valve port 73 are in communication with the fifth valve port 72.

[0031] Specifically, when the first valve body 4 is in the first state, the fifth valve port 72 and the sixth valve port 73 are in communication. The coolant flowing out of the mount device 5 can flow through the sixth valve port 73 and the fifth valve port 72 to the heat dissipation device 1, and then enter the water pump 3 from the second end of the heat dissipation device 1 to form a coolant circulation loop; when the first valve body 4 is in the second state, both the fourth valve port 71 and the sixth valve port 73 are in communication with the fifth valve port 72. The coolant flowing out of the mount device 5 and the battery pack 21 can both enter the heat dissipation device 1, increasing the coolant flow rate and improving the heat dissipation efficiency.

[0032] Thus, the setting of the second valve body 7 can enable reasonable flow path switching of the coolant, improving the overall performance and working efficiency of the hydraulic mount system 100.

[0033] Optionally, a check valve 8 is provided between the sixth valve port 73 and the liquid outlet of the suspension device 5. With this arrangement, it is ensured that the coolant can only flow from the liquid outlet of the suspension device 5 to the sixth valve port 73, effectively preventing liquid backflow and ensuring the normal operation of the hydraulic suspension system 100. Moreover, the setting of the check valve 8 helps to maintain the pressure stability in the suspension device 5 and avoid adverse effects on the hydraulic suspension system 100 caused by pressure fluctuations.

[0034] According to some specific embodiments of the present invention, a flow control valve 9 is provided on the heat dissipation device 1, and a second temperature and pressure sensor 10 is provided between the second end of the heat dissipation device 1 and the water pump 3. Both the second temperature and pressure sensor 10 and the flow control valve 9 are connected to the controller.

[0035] In specific implementation, the flow control valve 9 can accurately adjust the coolant flow rate in the heat dissipation device 1 according to actual needs to ensure that the heat dissipation effect of the suspension device 5 reaches the best state. The second temperature and pressure sensor 10 can monitor the temperature and pressure of the coolant flowing out of the heat dissipation device 1 in real time and timely feedback the detected temperature information and pressure information to the controller, enabling the controller to timely adjust the opening degree of the flow control valve 9 to achieve dynamic adjustment. Through the coordinated setting of the second temperature and pressure sensor 10, the flow control valve 9 and the controller, the heat dissipation requirements under different working conditions can be better met, and the working performance and stability of the entire hydraulic suspension system 100 can be improved.

[0036] According to some embodiments of the present invention, a first three-way valve 11 is provided between the second temperature and pressure sensor 10 and the water pump 3, and the first three-way valve 11 is connected to the liquid storage tank 12. Among them, the first three-way valve 11 switches between a third state and a fourth state. When the first three-way valve 11 is in the third state, the second temperature and pressure sensor 10 and the water pump 3 are connected; when the first three-way valve 11 is in the fourth state, the liquid storage tank 12 and the water pump 3 are connected.

[0037] When the pressure in the hydraulic suspension system 100 meets the design requirements, the first three-way valve 11 can be operated in the third state. At this time, the second temperature and pressure sensor 10 and the water pump 3 are connected, and the coolant flowing out of the heat dissipation device 1 can flow into the water pump 3 through the second temperature and pressure sensor 10 and the first three-way valve 11; when the pressure in the hydraulic suspension system 100 does not meet the design requirements, the first three-way valve 11 can be operated in the fourth state. At this time, the liquid storage tank 12 and the water pump 3 are connected, and the liquid storage tank 12 injects liquid and increases the pressure into the hydraulic suspension system 100 in a timely manner to raise the pressure in the hydraulic suspension system 100 to the design requirements and ensure the normal operation of the hydraulic suspension system 100. Thus, by flexibly switching the first three-way valve 11 between the third state and the fourth state, the pressure in the hydraulic suspension system 100 can always meet the design requirements, improving the reliability of the hydraulic suspension system 100.

[0038] It should be noted that the first three-way valve 11 can be an electromagnetic expansion valve, but it is not limited thereto.

[0039] According to some embodiments of the present utility model, a second three-way valve 13 is provided between the battery pack 21 and the water pump 3, and the second three-way valve 13 is connected to the liquid storage tank 12. Among them, the second three-way valve 13 switches between a fifth state and a sixth state. When the second three-way valve 13 is in the fifth state, the battery pack 21 and the water pump 3 are connected; when the second three-way valve 13 is in the sixth state, the liquid storage tank 12 and the water pump 3 are connected.

[0040] When the pressure in the hydraulic mount system 100 meets the design requirements, the second three-way valve 13 can be operated in the fifth state. At this time, the battery pack 21 and the water pump 3 are connected, and the coolant flowing out of the water pump 3 flows into the battery pack 21 through the second three-way valve 13; when the pressure in the hydraulic mount system 100 does not meet the design requirements, the second three-way valve 13 can be operated in the sixth state. At this time, the liquid storage tank 12 and the water pump 3 are connected, and the coolant flowing out of the water pump 3 flows into the liquid storage tank 12 through the second three-way valve 13, so that the pressure in the hydraulic mount system 100 is reduced to the design requirements, ensuring the normal operation of the hydraulic mount system 100. Thus, by flexibly switching the second three-way valve 13 between the fifth state and the sixth state, the pressure in the pipeline of the hydraulic mount system 100 can always meet the design requirements, improving the reliability of the hydraulic mount system 100.

[0041] Optionally, the heating element 22 is a pulse heater. Pulse heating can quickly raise the temperature and automatically adjust after reaching the set temperature, which is more energy-efficient than traditional heating methods. In addition, the pulse heater can more precisely control the heating temperature to avoid adverse effects on the hydraulic mount system 100 caused by too high or too low temperature.

[0042] The specific control strategy of the hydraulic mount system 100 according to the embodiments of the present utility model is as follows:

[0043] In a low-temperature environment, the first temperature and pressure sensor 6 transmits the low-temperature signal of the main spring in the mounting device 5 to the controller, and the controller transmits the signal to the pulse heater. The pulse heater quickly heats the coolant in the battery pack 21, and the water pump 3 drives the coolant to start circulating. At this time, the fourth valve port 71 of the second valve body 7 and the second valve port 42 of the first valve body 4 are closed, and the high-temperature coolant enters the mounting device 5 through the first valve port 41 and the third valve port 43 of the first valve body 4 to raise the temperature of the main spring. The coolant flowing out of the mounting device 5 flows through the one-way valve 8, the sixth valve port 73 and the fifth valve port 72 of the second valve body 7 to the heat dissipation device 1, and after being cooled to the temperature required at the inlet of the heating element 22 by the heat dissipation device 1, it flows back to the battery pack 21 through the second temperature and pressure sensor 10, the first three-way valve 11 and the water pump 3, thus forming a circulation loop.

[0044] When the first temperature and pressure sensor 6 monitors that the temperature of the main spring of the mount reaches the most suitable operating temperature, the signal is transmitted to the controller. The controller controls the pulse heater to stop working, and at the same time controls the fourth valve port 71 of the second valve body 7 to open and closes the first valve port 41 of the first valve body 4. At this time, the coolant flowing out of the heating element 22 is directly cooled to the temperature required at the inlet of the heating element 22 through the heat dissipation device 1, thus forming a circulation loop.

[0045] In a high-temperature environment, the first temperature and pressure sensor 6 transmits the high-temperature signal of the main spring in the mounting device 5 to the controller. The controller controls the fourth valve port 71 of the second valve body 7 and the second valve port 42 of the first valve body 4 to open, and at the same time closes the first valve port 41 of the first valve body 4. The water pump 3 drives the coolant to flow through the battery pack 21, the fourth valve port 71 and the fifth valve port 72 of the second valve body 7 to the heat dissipation device 1. After being cooled to a lower temperature by the heat dissipation device 1, the low-temperature coolant is divided into two paths. One path of the low-temperature coolant flows back to the battery pack 21 through the first three-way valve 11 and the water pump 3; the other path of the low-temperature coolant enters the mounting device 5 through the second valve port 42 and the third valve port 43 of the first valve body 4 to reduce the temperature of the main spring. The coolant flowing out of the mounting device 5 flows through the one-way valve 8 and the sixth valve port 73 and the fifth valve port 72 of the second valve body 7 to the heat dissipation device 1; thus forming a circulation loop.

[0046] When the first temperature and pressure sensor 6 detects that the temperature of the main spring reaches the suitable operating temperature, the first temperature and pressure sensor 6 transmits the signal to the controller. The controller controls the second valve port 42 of the first valve body 4 to close. At this time, the flow rate and opening degree of the flow control valve 9 are adjusted to adjust the heat exchange rate of the heat dissipation device 1, so that the coolant meets the temperature required at the inlet of the battery pack 21, and the loop circulation starts.

[0047] The first temperature and pressure sensor 6 monitors the temperature of the main spring in the mounting device 5 in real time and transmits the temperature signal of the main spring to the controller for strategy adjustment; monitors the internal pressure of the mounting device 5 in real time. Since the pressure of the main spring affects the damping characteristics of the mounting device 5, it is necessary to keep the internal pressure of the mounting device 5 stable at the designed state. When the pressure of the main spring exceeds the design requirements, the port of the second three-way valve 13 opens (i.e., the second three-way valve 13 is in the sixth state) for exhaust and pressure reduction.

[0048] The second temperature and pressure sensor 10 monitors the temperature of the coolant flowing out of the heat dissipation device 1 in real time and transmits the signal to the controller. The temperature is adjusted by controlling the flow rate and opening degree of the flow control valve 9; monitors the internal pressure of the hydraulic mounting system 100 in real time. When the internal pressure of the hydraulic mounting system 100 exceeds the design requirements, the second three-way valve 13 is in the sixth state for exhaust and pressure reduction; when the internal pressure of the hydraulic mounting system 100 does not meet the design requirements, the first three-way valve 11 is in the second state, and liquid injection and pressure increase are carried out through the liquid storage tank 12.

[0049] A vehicle (not shown in the figures) according to an embodiment of the second aspect of the present utility model includes the hydraulic mount system 100 according to the embodiment of the first aspect of the present utility model as described above.

[0050] For the vehicle according to the embodiment of the present utility model, by adopting the above-mentioned hydraulic mount system 100, the vehicle maintenance probability is reduced, and the safety and working reliability of the vehicle are improved.

[0051] Other components and operations of the vehicle according to the embodiment of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0052] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0053] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "mount", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0054] In the description of this specification, the description with 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 connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0055] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A hydraulic suspension system, characterized in that: include: Heat dissipation device; A battery module, the battery module comprising a battery pack and a heating element, the heating element being used to heat the coolant in the battery pack, the first end of the battery pack being connected to the first end of the heat dissipation device; a water pump, wherein two ends of the water pump are respectively connected to the second end of the heat dissipation device and the second end of the battery pack; a first valve body, the first valve body having a first valve port, a second valve port and a third valve port, the first valve port being connected to a first end of the battery pack, and the second valve port being connected to the water pump and a second end of the heat dissipation device; A suspension device, wherein a liquid inlet of the suspension device is connected to the third valve port, and a liquid outlet of the suspension device is connected to the second end of the heat dissipation device; Wherein, the first valve body can switch between a first state and a second state. When the first valve body is in the first state, the first valve port is connected to the third valve port, and the heating element works; when the first valve body is in the second state, the second valve port is connected to the third valve port, and the heat dissipation device works.

2. The hydraulic suspension system according to claim 1, characterized in that: Also includes: Controller; A first temperature and pressure sensor is provided on the suspension device, the first temperature and pressure sensor is used to detect the temperature of the main spring of the suspension device, and the first temperature and pressure sensor is connected to the controller.

3. The hydraulic suspension system according to claim 2, characterized in that: Also includes: a second valve body, the second valve body having a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port being connected to the first end of the battery pack and the first valve port, the fifth valve port being connected to the first end of the heat dissipation device, and the sixth valve port being connected to the liquid outlet of the suspension device; When the first valve body is in the first state, the fifth valve port is communicated with the sixth valve port, and when the first valve body is in the second state, the fourth valve port and the sixth valve port are both communicated with the fifth valve port.

4. The hydraulic suspension system according to claim 3, characterized in that: A one-way valve is provided between the sixth valve port and the liquid outlet of the suspension device.

5. The hydraulic suspension system according to claim 3, characterized in that: A flow control valve is provided on the heat dissipation device, a second temperature and pressure sensor is provided between the second end of the heat dissipation device and the water pump, and the second temperature and pressure sensor and the flow control valve are both connected to the controller.

6. The hydraulic suspension system according to claim 5, characterized in that: A first three-way valve is provided between the second temperature and pressure sensor and the water pump, and the first three-way valve is connected to the liquid storage tank; Among them, the first three-way valve switches between a third state and a fourth state. When the first three-way valve is in the third state, the second temperature and pressure sensor is connected to the water pump; when the first three-way valve is in the fourth state, the liquid storage tank is connected to the water pump.

7. The hydraulic suspension system according to claim 6, characterized in that: A second three-way valve is provided between the battery pack and the water pump, and the second three-way valve is connected to the liquid storage tank; Among them, the second three-way valve switches between a fifth state and a sixth state. When the second three-way valve is in the fifth state, the battery pack and the water pump are connected; when the second three-way valve is in the sixth state, the liquid storage tank and the water pump are connected.

8. The hydraulic suspension system according to any one of claims 1 to 7, characterized in that: The heating element is a pulse heater.

9. A vehicle, characterized in that: Comprising a hydraulic suspension system according to any one of claims 1-8.

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