Electric motor pump, hydraulic system and vehicle

Abstract

The application discloses a motor pump, a hydraulic system and a vehicle. The motor pump comprises a first motor pump and a sensor assembly. The first motor pump comprises a first motor shell and a first pump shell. The first motor shell is fixedly connected with the first pump shell along an axial direction of the first motor pump. The sensor assembly is arranged in the first motor shell. The sensor assembly is at least one of a temperature sensor assembly, a pressure sensor assembly and a temperature and pressure combined sensor assembly. According to the motor pump, the sensor assembly is arranged in the first motor shell, which is different from the arrangement of the sensor assembly in the first pump shell or other positions of the motor pump, and the installation position of the sensor assembly on the motor pump is increased.

Description

[0001] Citation of relevant applications This application is a divisional application of the invention patent application with application number 2024105614342, which was filed on April 30, 2024, and is entitled "Electric Pump, Hydraulic System and Vehicle". Technical Field

[0002] This application relates to the field of active hydraulic suspension technology, specifically to an electric motor pump, a hydraulic system, and a vehicle. Background Technology

[0003] Pressure in a hydraulic system can be monitored by sensors and reported as a real-time status quantity to the electronic control unit for further use. Current technologies employ a limited range of sensor placement methods. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] The technical problem to be solved by this application is that the sensor placement position is singular in the prior art.

[0006] To at least solve the above-mentioned technical problems, the first aspect of this application provides an electric motor pump, the electric motor pump including a first electric motor pump and a sensor assembly, the first electric motor pump including a first motor housing and a first pump housing, the first motor housing and the first pump housing being fixedly connected along the axial direction of the first electric motor pump; the sensor assembly is disposed inside the first motor housing, the sensor assembly being at least one of a temperature sensor assembly, a pressure sensor assembly, and a combined temperature and pressure sensor assembly.

[0007] This application arranges the sensor assembly inside the motor housing of the electric pump, which differs from arranging the sensor assembly in the pump housing, pump outlet, or other locations. This fills the gap in arranging the sensor assembly inside the motor housing of the electric pump and increases the arrangement options of the sensor assembly in the electric pump system.

[0008] Optionally, the first motor pump is provided with a first oil passage, one end of which extends into the first pump housing and the other end of which extends into the first motor housing.

[0009] Optionally, the first oil circuit includes a first channel, a second channel, and a third channel. The first channel extends into the first pump housing and is adapted to connect with the cavity of the shock absorber. The third channel extends into the first motor housing and is capable of communicating with the first motor housing. The second channel connects the first channel and the third channel.

[0010] Optionally, a mounting groove is formed inside the first motor housing, the mounting groove extending from one end of the first motor housing near the first pump housing to the end away from the first pump housing, the sensor assembly is disposed in the mounting groove, and the third channel communicates with the sensor assembly.

[0011] Optionally, the mounting slot includes a first mounting slot and a second mounting slot, wherein the first mounting slot is disposed within the first motor housing on the side close to the third channel, and the second mounting slot is disposed within the first motor housing on the side away from the third channel.

[0012] Optionally, the sensor assembly includes a sensor body and a sensor connector. The sensor body is disposed in the first mounting slot and communicates with the third channel. The sensor connector is disposed in the second mounting slot and is connected to the sensor body to transmit the oil signal detected by the sensor body.

[0013] Optionally, the sensor assembly includes a sensor body and a first seal, one end of the first seal being connected to a third channel and the other end of the first seal being connected to the sensor body.

[0014] Optionally, the sensor assembly includes a sensor body and a sensor connector, the sensor connector being connected to the sensor body; the first motor pump further includes an electronic control unit, the electronic control unit including a data acquisition unit, the data acquisition unit being electrically connected to the electronic control unit, one end of the sensor connector being connected to the sensor body, and the other end of the sensor connector being connected to the data acquisition unit.

[0015] Optionally, the electric pump further includes a second electric pump, which is axially opposite to the first electric pump, and the electronic control unit controls the first electric pump and the second electric pump.

[0016] A second aspect of this application provides a hydraulic system comprising an electric pump as described in any one of the embodiments of the first aspect.

[0017] Optionally, the hydraulic system includes a shock absorber, the hydraulic chamber of which is connected to the motor pump, and the motor pump is capable of adjusting the pressure difference of the hydraulic chamber of the shock absorber.

[0018] A third aspect of this application provides a vehicle comprising a hydraulic system as described in any one of the embodiments of the second aspect.

[0019] This application provides an electric motor pump, a hydraulic system, and a vehicle, which introduces a new sensor assembly arrangement by placing the sensor assembly inside the motor housing of the electric motor pump. With the sensor assembly inside the motor housing, the motor housing acts as a protective shell for the sensor assembly, reducing damage to the sensor assembly during operation.

[0020] Meanwhile, the sensor components are located inside the motor housing, and the motor pump and hydraulic system can still work together to actively adjust the vehicle's suspension system, improving the vehicle's comfort and handling stability. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of the oil passage of the electric motor pump; Figure 2 This is a schematic diagram of the electric pump structure; Figure 3 This is a schematic diagram of the sensor body structure; Figure 4 This is a schematic diagram of the sensor connector structure; Figure 5 This is a schematic diagram of oil signal transmission; Figure 6 This is an outline drawing of the electric pump; Figure 7 This is a schematic diagram of the principle of an electric pump.

[0022] Figure label: 100. Electric pump; 1. First motor pump; 10. First motor housing; 11. First pump housing; 110. First pump cover; 111. First housing; 12. First motor; 13. First pump body; 14. First motor unit; 15. First pump unit; 2. Sensor assembly; 20. Sensor body; 201. Spring contact; 21. Sensor connector; 210. Conductor connection point; 211. Connection socket; 3. First oil passage; 30. First channel; 301. Open end; 302. Closed end; 303. Inlet; 31. Second channel; 310. First through hole; 311. Second through hole; 312. Third through hole; 32. Third channel; 4. Mounting slot; 40. First mounting slot; 41. Second mounting slot; 5. First sealing element; 50. Sealing ring; 6. Electronic control unit; 60. Data acquisition unit; 61. Chip; 7. Second motor pump; 70. Second motor unit; 71. Second pump unit; 72. Second motor housing. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. However, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without one or more of these details. In other examples, to avoid confusion with the embodiments of this application, some technical features well-known in the art have not been described.

[0024] In this document, ordinal numbers such as “first” and “second” used in this application are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0025] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0026] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0027] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0028] Hereinafter, with reference to the accompanying drawings, some embodiments of this application will be described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] refer to Figure 1 and Figure 2As shown, the motor pump 100 includes a first motor pump 1, which includes a first motor housing 10 and a first pump housing 11. The first motor housing 10 and the first pump housing 11 are fixedly connected along the axial direction of the first motor pump 1. The first motor pump 1 also includes a first motor 12 and a first pump body 13. The first motor 12 is housed within the first motor housing 10 to form a first motor unit 14, and the first pump body 13 is housed within the first pump housing 11 to form a first pump unit 15. The first motor unit 14 and the first pump unit 15 are axially connected, and the first motor unit 14 drives the first pump unit 15. The motor pump 100 also includes a sensor assembly 2, which is disposed inside the first motor housing 10. The sensor assembly 2 is at least one of a temperature sensor assembly, a pressure sensor assembly, or a combined temperature and pressure sensor assembly. The first motor housing 10 shields the sensor assembly 2 from the external environment, making it less susceptible to interference from the external environment. It should be noted that the sensor assembly 2 mentioned here includes, but is not limited to, a temperature sensor assembly, a pressure sensor assembly, or a combined temperature and pressure sensor assembly.

[0030] In this embodiment, the sensor assembly 2 is disposed inside the first motor housing 10 of the first motor pump 1, which is different from the prior art in which the sensor is arranged inside the first pump housing 11 and other positions in the motor pump 100, thus filling the gap in the arrangement of the sensor assembly 2 inside the first motor housing 10.

[0031] In some embodiments, reference Figure 1 As shown, a first oil passage 3 is provided inside the first motor pump 1. One end of the first oil passage 3 extends into the first pump housing 11, and the other end extends into the first motor housing 10. The oil inlet and outlet are on the first pump housing 11. The sensor assembly 2 is disposed in the first motor housing 10. In order for the sensor assembly 2 to contact the oil, or more precisely, for the sensor body 20 to contact the oil (as described below, the sensor assembly 2 includes the sensor body 20 and the sensor connector 21; the sensor body 20 contacts the oil to monitor the oil signal, which is then transmitted through the sensor connector 21), the oil entering from the first pump housing 11 needs to be guided into the first motor housing 10 to contact the sensor body 20, thereby monitoring the state parameters of the oil in the motor pump 100, reflecting the pressure changes of the motor pump system, and thus realizing the active adjustment of the vehicle suspension system. Therefore, one end of the first oil passage 3 extends into the first pump housing 11 and communicates with the oil inlet 303, while the other end needs to be connected to the sensor body 20 inside the first motor housing 10.

[0032] In one embodiment, reference Figure 1The figure shows how the first oil circuit 3 is specifically constructed. The first oil circuit 3 includes a first channel 30, a second channel 31 and a third channel 32. The first channel 30 extends into the first pump housing 11 and is adapted to connect with the cavity of the shock absorber. Oil enters from the first channel 30. The third channel 32 extends to the first motor housing 10 and can communicate with the first motor housing 10. Oil flows out from the third channel 32. The second channel 31 connects the first channel 30 and the third channel 32 to form a flow channel for oil to enter the first motor housing 10 and contact the sensor body 20.

[0033] Specifically, the first pump housing 11 includes a first pump cover 110 and a first housing 111. A first channel 30 is provided along the axial direction of the first pump cover 110. The first channel 30 has an open end 301 and a closed end 302. The open end 301 of the first channel 30 is connected to the cavity of the shock absorber through a pipeline (not shown) so that the first channel 30 becomes the inlet / outlet of oil (in the figure, the first channel 30 is the inlet 303 of oil).

[0034] It is worth noting that, in order to monitor the oil status at the inlet and outlet of the first motor pump 1, at least one sensor assembly 2 is arranged inside the first motor housing 10. To introduce the oil from the inlet 303 of the first motor pump 1 into the first motor housing 10 from the first pump cover 110 to contact the sensor body 20, the oil needs to be first drawn from the first pump cover 110 to the first housing 111. Therefore, a first through hole 310 is provided radially on the first pump cover 110, communicating with the closed end 302 of the first channel 30. Simultaneously, a second through hole 311, a third through hole 312, and a third channel 32 are provided radially and axially on the first housing 111, respectively. The second through hole 311 communicates with the third channel 32, the third through hole 312 communicates with the first through hole 310, and the second through hole 311 communicates with the third through hole 312. The first through hole 310, the second through hole 311, and the third through hole 312 form a second channel 31 connecting the first channel 30 and the third channel 32.

[0035] Thus, the oil enters from the first channel 30 of the first pump cover 110, passes through the second channel 31 (i.e., the first through hole 310, the second through hole 311, and the third through hole 312), and is led to the third channel 32. The passage of the third channel 32 extends to the junction of the first housing 111 and the first motor housing 10, meaning that the third channel 32 connects the oil passage with the first motor housing 10. The third channel 32 actually connects the oil passage with the sensor body 20. The oil flows into the sensor body 20 inside the first motor housing 10 through the first oil passage 3, and will not enter other parts of the first motor housing 10 to cause damage to other components.

[0036] In other embodiments not shown in the figures, the second channel 31 may also not need to be configured as follows: Figure 3 The first through hole 310, the second through hole 311 and the third through hole 312 shown are presented in such a way that as long as the first channel 30 and the third channel 32 can be connected, the oil can be drawn into the sensor body 20 inside the first motor housing 10, so that the sensor body 20 can monitor the state parameters of the oil flowing through the first motor pump 1.

[0037] In other embodiments not shown in the figures, the first oil passage 3 in the first motor pump 1 may not necessarily include the first channel 30, the second channel 31 and the third channel 32. The purpose of the first oil passage 3 is to draw oil from the first pump unit 15 to the sensor body 20 inside the first motor housing 10. As long as this purpose can be achieved, the first oil passage 3 may also have other paths.

[0038] In one embodiment, such as Figure 1 and Figure 2 As shown, a mounting groove 4 is formed inside the first motor housing 10. The mounting groove 4 is located in the axial direction of the first motor pump 1. The mounting groove 4 extends from one end of the first motor housing 10 near the first pump housing 11 to the end away from the first pump housing 11. The end of the mounting groove 4 near the first pump housing 11 communicates with the third channel 32. The sensor assembly 2 is disposed in the mounting groove 4. In fact, the third channel 32 communicates with the sensor assembly 2, allowing oil to enter the sensor assembly 2 through the oil passage to monitor the state parameters of the oil. The mounting groove 4 is part of the first motor housing 10. The sensor assembly 2 is disposed in the mounting groove 4 and is protected by the first motor housing 10 so that it is not exposed to the external environment. This prevents the sensor assembly 2 from being corroded or impacted by gravel in the working environment, thereby ensuring that the sensor assembly 2 can still work normally under extreme conditions.

[0039] In one embodiment, reference Figure 1 The mounting slot 4 includes a first mounting slot 40 and a second mounting slot 41. The first mounting slot 40 is located inside the first motor housing 10 on the side closer to the third channel 32, and the second mounting slot 41 is located inside the first motor housing 10 on the side away from the third channel 32. The arrangement of the first mounting slot 40 and the second mounting slot 41 allows the sensor assembly 2 to be installed in its corresponding position, making the installation of the sensor assembly 2 more stable. In the working environment of the motor pump 100, the sensor assembly 2 is not easily dislodged, thus ensuring the accuracy of monitoring.

[0040] In other embodiments not shown, the mounting groove 4 may not be divided into a first mounting groove 40 and a second mounting groove 41. The mounting groove 4 may also be a single groove structure. As long as the sensor assembly 2 and the mounting groove 4 are securely connected, and the sensor assembly 2 is not easily dislodged during operation, the solution that can accurately monitor and transmit the oil signal in the system is within the protection scope of this application.

[0041] In one embodiment, reference Figure 3 and Figure 4 The sensor assembly 2 includes a sensor body 20 and a sensor connector 21. Figure 3 This is a schematic diagram of the sensor body 20, which includes a spring contact 201 at the tail end. Figure 4 This is a schematic diagram of the sensor connector 21. One end of the sensor connector is a bowl-shaped conductor connection point 210, and the other end is a connection socket 211. The sensor body 20 is disposed in the first mounting groove 40 and communicates with the third channel 32, monitoring the oil introduced through the third channel 32. The sensor connector 21 is disposed in the second mounting groove 41 and connects to the sensor body 20 to transmit the oil signal detected by the sensor body 20. Specifically, the spring contact 201 of the sensor body 20 is connected to the conductor connection point 210 of the sensor connector 21 to achieve signal transmission.

[0042] In other embodiments not shown in the figures, the sensor assembly 2 may have other structural forms, the sensor body 20 and the sensor connector 21 may have other structural features, and the sensor body 20 and the sensor connector 21 may have different connection relationships. Any scheme that can monitor and transmit oil signals in the system is within the protection scope of this application.

[0043] In one embodiment, such as Figure 1 and Figure 3 As shown, the sensor assembly 2 includes a sensor body 20 and a first seal 5. One end of the first seal 5 is connected to the third channel 32, and the other end of the first seal 5 is connected to the sensor body 20. When oil flows through the sensor body 20, oil leakage may occur, causing contamination inside the first motor pump 1 and affecting its efficiency and service life. Therefore, a first seal 5 is installed between the third channel 32 and the sensor body 20. The first seal 5 can be an O-ring or other seal. The first seal 5 can be press-fitted to the third channel 32 and the sensor body 20 to achieve a seal, or it can be sealed in other ways.

[0044] The first sealing element 5 enhances the sealing performance of the first motor pump 1. The first sealing element 5 also has a sealing ring 50, which is fixed at the connection between the first sealing element 5 and the third channel 32 and the sensor body 20. This further enhances the sealing performance of the first motor pump 1 during operation, prevents oil leakage, and ensures that no oil leaks from the first motor pump 1 to the outside of the sensor body 20 during operation, thus preventing damage to other internal components of the first motor pump 1.

[0045] In one embodiment, reference Figure 5 The sensor assembly 2 includes a sensor body 20 and a sensor connector 21, with the sensor connector 21 connected to the sensor body 20. The first motor pump 1 also includes an electronic control unit 6, which includes a data acquisition unit 60. The electronic control unit 6 and the data acquisition unit 60 are electrically connected via pins or flexible cables. The conductor connection point 210 of the sensor connector 21 is connected to the sensor body 20 to transmit the signal monitored by the sensor body 20. The other end of the sensor connector 21, the connector port 211, is connected to the data acquisition unit 60. The signal monitored by the sensor body 20 is transmitted to the data acquisition unit 60 via the sensor connector 21, and the data acquisition unit 60 then transmits the signal to the electronic control unit 6 via an electrical connection.

[0046] In addition, the electronic control unit 6 is equipped with a chip 61, which can collect the rotor speed of the first motor in real time. When the oil pressure fed back by the sensor component 2 does not match the system pressure required by the first motor pump 1, the electronic control unit 6 can feed back the corresponding electrical signal to the first motor 12. The first motor 12 controls the hydraulic system by adjusting the rotor speed of the first motor 12.

[0047] In one embodiment, such as Figure 2 and Figure 6 As shown, the electric pump 100 also includes a second electric pump 7, which has the same structure as the first electric pump 1. The second electric pump 7 includes a second motor unit 70 and a second pump unit, with the first electric pump 1 and the second electric pump 7 arranged axially opposite each other. The second motor unit 70 includes a second motor and a second motor housing 72, which can be an integral piece with the first motor housing 10, i.e., as shown... Figure 6 As shown, the first motor housing 10 and the second motor housing 72 of the electric pump are a non-removable unit, with the first motor 12 and the second motor housed within it. The first pump unit 15 and the second pump unit are attached to the left and right ends of the electric pump 100, and these two pump units are identical. The integrated motor housing makes the electric pump 100 appear simple and aesthetically pleasing. Alternatively, the first motor housing 10 and the second motor housing 72 can be two detachable parts connected together. This type of motor housing facilitates disassembly and maintenance of the internal components.

[0048] like Figure 6 and Figure 7 As shown, an electronic control unit 6 is arranged on the top of the motor pump 100. This electronic control unit 6 can simultaneously control the first motor pump 1 and the second motor pump 7. Therefore, the motor pump 100 of this solution is a five-in-one integrated structure, which integrates the first motor unit 14, the second motor unit 70, the first pump unit 15, the second pump unit, and the electronic control unit 6. This motor pump 100 has a high degree of integration, and only one set of motor pump 100 is needed to meet the needs of the front and rear axles of the vehicle. This not only saves costs but also optimizes the layout space of the motor pump 100.

[0049] This application also provides a hydraulic system, which includes the motor pump 100 described in any of the above embodiments.

[0050] In one embodiment, the hydraulic system includes a shock absorber (not shown), the hydraulic chamber of which is connected to a motor pump 100, which is capable of adjusting the pressure difference of the hydraulic chamber of the shock absorber.

[0051] This application also provides a vehicle having the hydraulic system described in any of the above embodiments.

[0052] By arranging the sensor assembly 2 within the motor housing of the motor pump 100, a new arrangement for the sensor assembly 2 is introduced. With the sensor assembly 2 inside the motor housing, the motor housing acts as a protective shell for the sensor assembly 2, reducing damage to the sensor assembly 2 during operation. Simultaneously, the motor pump 100 and hydraulic system, with the sensor assembly 2 located within the motor housing, can still cooperate to actively adjust the vehicle's suspension system, improving vehicle comfort and handling stability.

[0053] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0054] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A motor pump (100), characterized in that, The electric pump (100) includes: The first motor pump (1) includes a first motor housing (10) and a first pump housing (11), and the first motor housing (10) and the first pump housing (11) are fixedly connected along the axial direction of the first motor pump (1). The sensor assembly (2) is disposed inside the first motor housing (10), and the sensor assembly (2) is at least one of a temperature sensor assembly, a pressure sensor assembly, and a temperature and pressure combined sensor assembly.

2. The electric pump (100) according to claim 1, characterized in that, The first motor pump (1) is provided with a first oil passage (3), one end of the first oil passage (3) extends into the first pump housing (11), and the other end of the first oil passage (3) extends into the first motor housing (10).

3. The electric pump (100) according to claim 2, characterized in that, The first oil circuit (3) includes a first channel (30), a second channel (31) and a third channel (32). The first channel (30) extends into the first pump housing (11) and is adapted to connect with the cavity of the shock absorber. The third channel (32) extends to the first motor housing (10) and is able to communicate with the first motor housing (10). The second channel (31) connects the first channel (30) and the third channel (32).

4. The electric pump (100) according to claim 3, characterized in that, An installation groove (4) is formed inside the first motor housing (10). The installation groove (4) extends from one end of the first motor housing (10) near the first pump housing (11) to the end away from the first pump housing (11). The sensor assembly (2) is disposed in the installation groove (4). The third channel (32) is connected to the sensor assembly (2).

5. The electric pump (100) according to claim 4, characterized in that, The mounting slot (4) includes a first mounting slot (40) and a second mounting slot (41). The first mounting slot (40) is located inside the first motor housing (10) on the side close to the third channel (32), and the second mounting slot (41) is located inside the first motor housing (10) on the side away from the third channel (32).

6. The electric pump (100) according to claim 5, characterized in that, The sensor assembly (2) includes a sensor body (20) and a sensor connector (21). The sensor body (20) is disposed in the first mounting slot (40) and is connected to the third channel (32). The sensor connector (21) is disposed in the second mounting slot (41) and is connected to the sensor body (20) to transmit the oil signal monitored by the sensor body (20).

7. The electric pump (100) according to claim 3, characterized in that, The sensor assembly (2) includes a sensor body (20) and a first seal (5), one end of the first seal (5) is connected to the third channel (32), and the other end of the first seal (5) is connected to the sensor body (20).

8. The electric pump (100) according to claim 1, characterized in that, The sensor assembly (2) includes a sensor body (20) and a sensor connector (21), the sensor connector (21) being connected to the sensor body (20); The first motor pump (1) further includes an electronic control unit (6), the electronic control unit (6) includes a data acquisition unit (60), the data acquisition unit (60) is electrically connected to the electronic control unit (6), one end of the sensor connector (21) is connected to the sensor body (20), and the other end of the sensor connector (21) is connected to the data acquisition unit (60).

9. The electric pump (100) according to claim 8, characterized in that, The electric pump (100) further includes a second electric pump (7), which is axially opposite to the first electric pump (1), and the electronic control unit (6) controls the first electric pump (1) and the second electric pump (7).

10. A hydraulic system, characterized in that, The hydraulic system includes an electric pump (100) according to any one of claims 1-9.

11. The hydraulic system according to claim 10, characterized in that, The hydraulic system includes a shock absorber, the hydraulic chamber of which is connected to the motor pump (100), and the motor pump (100) is capable of adjusting the pressure difference of the hydraulic chamber of the shock absorber.

12. A vehicle, characterized in that, The vehicle includes a hydraulic system according to any one of claims 10-11.

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