Driving system of oil pump, active suspension assembly and vehicle

Abstract

The utility model provides a driving system of an oil pump, an active suspension assembly and a vehicle. The driving system of the oil pump comprises the oil pump, a driving piece and a planet row speed reducing mechanism. The two oil pumps are suitable for supplying oil to hydraulic shock absorbers on the two transverse sides of the vehicle correspondingly. One end of the driving part is in power connection with the oil pump on one side through one group of planet row speed reducing mechanism, and the other end is in power connection with the oil pump on the other side through the other group of planet row speed reducing mechanism; the driving piece outputs power to the planet row speed reducing mechanism and controls a gear ring of the planet row speed reducing mechanism to rotate forwards or reversely, and therefore the gear ring drives the oil pump to rotate forwards or reversely. According to the driving system of the oil pump, power can be output towards the planet row speed reducing mechanisms on the two sides at the same time through the driving piece, forward rotation and reverse rotation of the oil pumps on the two sides of a vehicle are achieved, cost is reduced, and the space occupied in the axial direction of the driving piece is saved through the structural layout of the planet row speed reducing mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a drive system for an oil pump, an active suspension assembly, and a vehicle. Background Technology

[0002] When vehicles are off-roading, different off-road conditions require different vehicle heights. As a result, some active suspension systems have emerged. Active suspension systems add hydraulic shock absorbers to the air springs. By actively charging and uncharging the hydraulic shock absorbers, the vehicle can be actively raised and lowered to better adapt to the environment. At the same time, all four wheels need to be able to raise and lower independently to ensure the stability of the vehicle.

[0003] However, most current active suspension drive systems use electric motors and high-pressure oil pumps for driving. Since each wheel needs to be raised and lowered, four sets of motors are required for control, resulting in high manufacturing costs. In addition, the current oil pump drive system occupies a large axial space. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a drive system for an oil pump, which can output power to both sides of the planetary gear reducer mechanism simultaneously through a single drive component, so as to realize the forward and reverse rotation of the oil pumps on both sides of the vehicle, thereby reducing costs, and the structural layout of the planetary gear reducer mechanism saves axial space.

[0005] The oil pump drive system according to an embodiment of the present invention includes: an oil pump, a drive component, and a planetary gear reducer mechanism; the oil pump is two pumps, each adapted to supply oil to hydraulic shock absorbers on both sides of the vehicle in the lateral direction; one end of the drive component is powered to the oil pump on one side through a set of planetary gear reducers, and the other end is powered to the oil pump on the other side through another set of planetary gear reducers; wherein, the drive component outputs power to the planetary gear reducer mechanism and controls the gear ring of the planetary gear reducer mechanism to rotate forward or backward, thereby causing the gear ring to drive the oil pump to rotate forward or backward.

[0006] According to the embodiment of the present invention, the oil pump drive system outputs power to the planetary gear reducer mechanism on both sides through a drive component, thereby driving two oil pumps on both sides of the vehicle. It can drive the two oil pumps to rotate forward or in reverse, so as to adjust the rise or fall of the vehicle's active suspension through the oil pumps. When supplying oil to four hydraulic shock absorbers, only two drive components are needed, thereby reducing the number of drive components, reducing development costs, and the structural layout of the planetary gear reducer mechanism saves axial space.

[0007] The oil pump drive system according to an embodiment of the present invention further includes a brake and a clutch. The drive component and the planetary gear reducer are disposed within a housing. The brake selectively connects the planet carrier of the planetary gear reducer to the housing. The clutch selectively connects the sun gear of the planetary gear reducer to the planet carrier, or selectively connects the sun gear to the ring gear, or selectively connects the planet carrier to the ring gear.

[0008] According to the oil pump drive system of this utility model embodiment, when the planetary carrier is connected to the housing and the sun gear is disconnected from the planetary carrier, the sun gear drives the planetary gear to rotate, and the planetary gear drives the ring gear to rotate in reverse to drive the oil pump to rotate in reverse. When the planetary carrier is disconnected from the housing and the sun gear is connected to the planetary carrier, the sun gear drives the planetary gear and the planetary carrier to move synchronously to control the ring gear to rotate in the forward direction, thereby driving the oil pump to rotate in the forward direction.

[0009] According to the oil pump drive system of this utility model embodiment, when the planetary carrier is connected to the housing and the sun gear is disconnected from the ring gear, the sun gear drives the planetary gear to rotate, and the planetary gear drives the ring gear to rotate in reverse. When the planetary carrier is disconnected from the housing and the sun gear is connected to the ring gear, the sun gear drives the planetary gear and the planetary carrier to move together, so that the planetary gear drives the ring gear to rotate, thereby driving the oil pump to rotate in the forward direction.

[0010] According to the oil pump drive system of this utility model embodiment, when the planetary carrier is connected to the housing and disconnected from the gear ring, the sun gear rotates to drive the planetary gear to rotate, thereby driving the gear ring to rotate in reverse. When the planetary carrier is disconnected from the housing and connected to the gear ring, the sun gear rotates to drive the planetary gear, the planetary carrier and the gear ring to rotate synchronously, thereby driving the oil pump to rotate in the forward direction.

[0011] According to the oil pump drive system of the present utility model embodiment, the drive component outputs power to the planetary gear reducer to control one of the oil pumps to rotate forward and the other oil pump to rotate in reverse, or control both oil pumps to rotate forward, or control both oil pumps to rotate in reverse.

[0012] According to the oil pump drive system of the present utility model embodiment, when the drive member simultaneously controls the oil pumps on both sides to rotate forward, the speed ratio output by the drive member to the oil pumps on both sides is the same; or when the drive member simultaneously controls the oil pumps on both sides to rotate in reverse, the speed ratio output by the drive member to the oil pumps on both sides is the same.

[0013] According to an embodiment of the present invention, in the drive system of the oil pump, the output shaft of the drive component is coaxially arranged with the input shaft of the oil pump.

[0014] This utility model embodiment also proposes an active suspension assembly, including a hydraulic shock absorber and the aforementioned oil pump drive system. The oil pump adjusts the flow direction of the oil by rotating forward or backward, thereby adjusting the movement direction of the hydraulic shock absorber.

[0015] According to the active suspension assembly of the oil pump in this utility model embodiment, by controlling the forward or reverse rotation of the oil pumps on both sides, the shock absorber can be raised or lowered to adapt to suitable road sections. In other words, the active suspension assembly uses one drive unit to drive the two oil pumps corresponding to the two wheels. Compared with the method of four wheels requiring four drive units, the number of drive units can be reduced while achieving the functional requirements of active suspension, thus reducing development costs.

[0016] This utility model embodiment also proposes a vehicle including the above-described active suspension assembly.

[0017] The advantages of the vehicle described above compared to existing technologies are the same as those of the active suspension assembly described above compared to existing technologies, and will not be elaborated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the drive system of the oil pump of this utility model;

[0021] Figure 2 This is a schematic diagram of another embodiment of the drive system of the oil pump of this utility model;

[0022] Figure 3 This is a schematic diagram of another embodiment of the drive system of the oil pump of this utility model;

[0023] Figure label:

[0024] The oil pump drive system 100 includes a drive component 1, a motor rotor 11, a motor stator 12, a brake 2, a clutch 3, a planetary gear reducer 4, a sun gear 41, a planetary gear 42, a planetary carrier 43, a gear ring 44, and an oil pump 45. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The following is for reference. Figures 1-3 The oil pump drive system 100 according to an embodiment of the present invention can output power to the planetary gear reducer 4 on both sides simultaneously through a drive member 1, so as to realize the forward and reverse rotation of the oil pumps 45 on both sides of the vehicle, thereby reducing costs, and the structural layout of the planetary gear reducer 4 saves axial space.

[0029] like Figure 1-3 As shown, an oil pump drive system 100 according to an embodiment of the present invention includes: an oil pump 45, a drive component 1, and a planetary gear reducer 4.

[0030] Among them, there are two oil pumps 45, which are respectively suitable for supplying oil to the hydraulic shock absorbers on both sides of the vehicle in the lateral direction; one end of the drive unit 1 is powered to the oil pump 45 on one side through a set of planetary gear reducers 4, and the other end is powered to the oil pump 45 on the other side through another set of planetary gear reducers 4; the drive unit 1 outputs power to the planetary gear reducers 4 and controls the gear ring 44 of the planetary gear reducers 4 to rotate forward or backward, thereby causing the gear ring 44 to drive the oil pump 45 to rotate forward or backward.

[0031] In practice, hydraulic shock absorbers utilize the fluidity of liquids to dampen vibrations. When a mechanical system is subjected to impact or vibration, the piston inside the hydraulic shock absorber moves, causing the liquid to flow through sealed pipes, generating a damping effect. This converts kinetic energy into heat energy, thus reducing the vibration of the mechanical system. Specifically, when a vehicle's active suspension vibrates due to an impact, the oil inside the hydraulic shock absorber flows repeatedly through the orifices within the cavity. During this flow, the friction between the orifice walls and the oil, as well as the internal friction between oil molecules, creates a damping force, converting vibration energy into heat energy and dissipating it into the atmosphere.

[0032] As in this embodiment of the invention, the active suspension is poweredly connected to oil pumps 45 on both sides along the lateral direction of the vehicle. The oil pumps 45 are high-pressure oil pumps, and the raising and lowering of the active suspension is achieved by the forward and reverse rotation of the oil pumps 45. When the oil pumps 45 rotate forward, oil is drawn in and flows into the upper chamber of the hydraulic damper through the valve in the hydraulic damper, causing the active suspension to compress, that is, the height of the active suspension decreases. Conversely, when the oil pumps 45 rotate in reverse, oil flows into the lower chamber of the hydraulic damper through the valve in the hydraulic damper, causing the active suspension to extend, that is, the height of the active suspension increases.

[0033] Specifically, refer to Figure 1 As shown, the first driving member 1 outputs power to the planetary gear reducers 4 on both sides, and each planetary gear reducer 4 can drive the corresponding oil pump 45 to rotate forward or in reverse. For example, when the driving member 1 is moving, it can drive the oil pump 45 on the left side to rotate forward and drive the oil pump 45 on the right side to rotate forward, or drive the oil pump 45 on the left side to rotate in reverse and drive the oil pump 45 on the right side to rotate forward, or drive both oil pumps 45 to rotate forward at the same time, or drive both oil pumps 45 to rotate in reverse, thereby realizing that one driving member 1 can drive the movement of two oil pumps 45 at the same time, and the appropriate rotation direction of the oil pump 45 can be selected according to the actual road conditions.

[0034] Therefore, the oil pump drive system 100 of this utility model embodiment, while fulfilling the active suspension function requirements, reduces the number of drive components 1, lowers development costs, and enables the drive components 1 to transmit power through the planetary gear reducer 4. The planetary gear reducer 4 can reduce the space occupied along the axial direction of the drive components 1 and improve integration.

[0035] In some embodiments, the drive system 100 of the oil pump further includes a brake 2 and a clutch 3. The drive member 1 and the planetary gear reducer 4 are disposed in the housing. The brake 2 selectively connects the planet carrier 43 to the housing. The clutch 3 can selectively power the sun gear 41 of the planetary gear reducer 4 to the planet carrier 43, or the clutch 3 can selectively power the sun gear 41 of the planetary gear reducer 4 to the ring gear 44, or the clutch 3 can selectively power the planet carrier 43 of the planetary gear reducer 4 to the ring gear 44.

[0036] In other words, Figure 1 In this configuration, brake 2 can either fix the planetary carrier 43 to the housing or disconnect the planetary carrier 43 from the housing; similarly, clutch 3 can connect the planetary carrier 43 to the sun gear 41 or disconnect the planetary carrier 43 from the sun gear 41. In other words, the direction of power transmission can be selectively changed through brake 2 and clutch 3, thereby allowing selective control of the oil pump 45 to rotate forward or backward according to actual conditions.

[0037] Of course, there are other ways to design clutch 3, such as Figure 2 As shown, the clutch 3 can selectively connect or disconnect the sun gear 41 and the ring gear 44. When the sun gear 41 and the ring gear 44 are connected, the rotation of the sun gear 41 can drive the ring gear 44 to rotate. When the sun gear 41 and the ring gear 44 are disconnected, the sun gear 41 rotates and can transmit power to the planetary gear 42. The rotation of the planetary gear 42 drives the ring gear 44 to rotate, which can also change the direction of power transmission.

[0038] In addition, such as Figure 3 As shown, the clutch 3 can also selectively connect or disconnect the planetary carrier 43 and the ring gear 44. When the clutch 3 connects the planetary carrier 43 and the ring gear 44, and the brake 2 disconnects the planetary carrier 43 from the housing, the rotation of the sun gear 41 can drive the planetary gear 42 and the ring gear 44 to rotate simultaneously. When the clutch 3 disconnects the planetary carrier 43 and the ring gear 44, and the brake 2 connects the planetary carrier 43 to the housing, the sun gear 41 rotates and the power transmission direction changes. Thus, by setting the clutch 3 and the brake 2, the power transmission direction of the drive component 1 through the planetary gear reduction mechanism 4 is changed, thereby controlling the oil pump 45 to rotate forward or backward.

[0039] In some embodiments, when the planetary carrier 43 is connected to the housing and the sun gear 41 is disconnected from the planetary carrier 43, the sun gear 41 drives the planetary gear 42 to rotate, and the planetary gear 42 drives the gear ring 44 to rotate in reverse, thereby driving the oil pump 45 to rotate in reverse. When the planetary carrier 43 is disconnected from the housing and the sun gear 41 is connected to the planetary carrier 43, the sun gear 41 drives the planetary gear 42 and the planetary carrier 43 to move synchronously, thereby controlling the gear ring 44 to rotate forward, thereby driving the oil pump 45 to rotate forward.

[0040] Combination Figure 1 As shown, when the brake 2 fixes the planet carrier 43 of the planetary gear reducer 4 to the housing, and the planet carrier 43 is stationary, and the clutch 3 disconnects the planet carrier 43 from the sun gear 41, the drive component 1 outputs power to the sun gear 41. The sun gear 41 rotates and drives the planetary gear 42 to rotate. Since the planet carrier 43 is fixed, the planetary gear 42 rotates on its own axis. The planetary gear 42 outputs power to the ring gear 44, controlling the ring gear 44 to reverse. The reverse rotation of the ring gear 44 drives the oil pump 45 to reverse, so the corresponding direction of movement of the hydraulic shock absorber is downward.

[0041] When the planetary carrier 43 is disconnected from the housing and the clutch 3 is engaged, the sun gear 41 transmits power to the planetary gear 42 and the planetary carrier 43, causing the planetary gear 42 and the planetary carrier 43 to rotate together. At this time, the planetary gear 42 rotates on its own axis while also revolving around the sun. The rotation of the planetary gear 42 drives the gear ring 44 to rotate forward, and the forward rotation of the gear ring 44 drives the oil pump 45 to rotate forward, which corresponds to the upward movement of the hydraulic shock absorber.

[0042] In some embodiments, when the planetary carrier 43 is connected to the housing and the sun gear 41 is disconnected from the ring gear 44, the sun gear 41 drives the planetary gear 42 to rotate, and the planetary gear 42 drives the ring gear 44 to rotate in reverse. When the planetary carrier 43 is disconnected from the housing and the sun gear 41 is connected to the ring gear 44, the sun gear 41 drives the planetary gear 42 and the planetary carrier 43 to move together, so that the planetary gear 42 drives the ring gear 44 to rotate, thereby driving the oil pump 45 to rotate in the forward direction.

[0043] Reference Figure 2 As shown, when brake 2 connects planetary carrier 43 to housing and clutch 3 disconnects sun gear 41 from ring gear 44, sun gear 41 rotates, driving planetary gear 42 to rotate. Since sun gear 41 is disconnected from ring gear 44, planetary gear 42 rotates in the opposite direction to the rotation of ring gear 44, thus driving ring gear 44 to rotate in reverse, thereby achieving reverse rotation of oil pump 45. Of course, when brake 2 disconnects planetary carrier 43 from housing and clutch 3 connects sun gear 41 to ring gear 44, the rotation of sun gear 41 can simultaneously drive ring gear 44 to rotate synchronously, that is, drive ring gear 44 to rotate forward, thereby driving oil pump 45 to rotate forward.

[0044] In some embodiments, when the planetary carrier 43 is connected to the housing and disconnected from the gear ring 44, the sun gear 41 rotates, driving the planetary gear 42 to rotate, and the planetary gear 42 drives the gear ring 44 to rotate in reverse. When the planetary carrier 43 is disconnected from the housing and connected to the gear ring 44, the sun gear 41 rotates, driving the planetary gear 42, the planetary carrier 43 and the gear ring 44 to rotate synchronously, so as to drive the oil pump 45 to rotate forward.

[0045] Reference Figure 3 As shown, when the brake 2 connects the planetary carrier 43 to the housing and the clutch 3 disconnects the planetary carrier 43 from the ring gear 44, the drive unit 1 transmits power to the sun gear 41, causing the sun gear 41 to rotate. The rotation of the sun gear 41 drives the planetary gear 42 to rotate, and the rotation of the planetary gear 42 drives the ring gear 44 to rotate in reverse. The reverse rotation of the ring gear 44 then drives the oil pump 45 to rotate in reverse. When the clutch 3 connects the planetary carrier 43 to the ring gear 44 and the brake 2 disconnects the planetary carrier 43 from the housing, the rotation of the sun gear 41 drives the planetary gear 42 to rotate. At the same time, the planetary gear 42 drives the planetary carrier 43 to rotate, and also drives the ring gear 44 to rotate. That is, the sun gear 41 simultaneously drives the planetary gear 42, the planetary carrier 43, and the ring gear 44 to rotate together. At this time, the ring gear 44 can be driven to rotate forward, which means that the oil pump 45 is driven to rotate forward.

[0046] In some embodiments, the drive unit 1 outputs power to the planetary gear reducer 4 to control one oil pump 45 to rotate forward and the other oil pump 45 to rotate in reverse, or to control both oil pumps 45 to rotate forward, or to control both oil pumps 45 to rotate in reverse.

[0047] Specifically, such as Figure 1 As shown, at this time, the brake 2 on the left side of the drive unit 1 can be disengaged and the clutch 3 can be engaged. Then the planetary gear reducer 4 on the left side can control the oil pump 45 on the left side to rotate forward. At the same time, the brake 2 on the right side of the drive unit 1 can be disengaged and the clutch 3 can be engaged. Then the planetary gear reducer 4 on the right side can control the oil pump 45 on the right side to rotate forward.

[0048] Of course, it is also possible that the brake 2 on the left side of the drive component 1 is engaged and the clutch 3 is disengaged, then the planetary gear reducer 4 on the left side can control the oil pump 45 on the left side to reverse. At the same time, the brake 2 on the right side of the drive component 1 is engaged and the clutch 3 is disengaged, then the planetary gear reducer 4 on the right side can control the oil pump 45 on the right side to reverse.

[0049] Alternatively, with the left brake 2 engaged and clutch 3 disengaged, the left planetary gear reducer 4 can control the left oil pump 45 to rotate in reverse; simultaneously, the right brake 2 disengaged and clutch 3 engaged, the right planetary gear reducer 4 can control the right oil pump 45 to rotate in forward. Of course, it is also possible for the left brake 2 to disengage and clutch 3 to engage, and the right brake 2 to engage and clutch 3 to disengage. In this case, the left planetary gear reducer 4 can control the left oil pump 45 to rotate in forward, and the right planetary gear reducer 4 can control the right oil pump 45 to rotate in reverse. Specific methods are shown in Table 1 below.

[0050] Table 1

[0051] Left oil pump Right oil pump Left clutch Left brake Right clutch Right brake Forward Forward √ √ Forward Reversal √ √ Reversal Forward √ √ Reversal Reversal √ √

[0052] As can be seen from the table above, the left-side oil pump 45 can be selectively rotated forward or backward by the clutch 3 and brake 2 on the left side, and the right-side oil pump 45 can be selectively rotated forward or backward by the clutch 3 and brake 2 on the right side. Both ends of the drive unit 1 need to output power simultaneously to control the rotation of the oil pump 45. For example, the forward rotation of the oil pump 45 causes the active suspension to rise, and the reverse rotation causes the active suspension to fall. The rotation mode of the oil pump 45 can be switched according to the actual road conditions to meet the requirements of raising or lowering the active suspension.

[0053] In addition, the driving component 1 is a motor, which includes a motor rotor 11 and a motor stator 12. The motor stator 12 is connected to the housing. So when the oil pump 45 rotates forward, the speed of the planetary gear reducer 4 is the same as the output speed of the driving component 1. The speed driven by the oil pump 45 is the same as the speed of the motor rotor 11 and in the same direction.

[0054] In some embodiments, when the drive unit 1 simultaneously controls the oil pumps 45 on both sides to rotate forward, the speed ratio output by the drive unit 1 to the oil pumps 45 on both sides is the same; or when the drive unit 1 simultaneously controls the oil pumps 45 on both sides to rotate in reverse, the speed ratio output by the drive unit 1 to the oil pumps 45 on both sides is the same.

[0055] That is, when they rotate forward at the same time, the oil pumps 45 on both sides rotate at the same speed; when they rotate in reverse at the same time, the oil pumps 45 on both sides rotate at the same speed, thereby achieving stable oil supply from the oil pumps 45 on both sides and maintaining good stability of the wheels on both sides of the vehicle.

[0056] In some embodiments, the output shaft of the drive unit 1 is coaxially arranged with the input shaft of the oil pump 45.

[0057] In other words, the output shaft of the drive component 1 first transmits power to the sun gear 41, which is located at the center of the gear ring 44. At the same time, the input shaft of the oil pump 45 is located at the center of the gear ring 44, which is coaxial with the output shaft of the drive component 1. The input shaft of the oil pump 45 is located at the center of the gear ring 44 and is coaxial with the central axis of the sun gear 41, thereby improving the uniformity and stability of the power transmission and maintaining the stable rotation of the oil pump 45.

[0058] This utility model embodiment also discloses an active suspension assembly, including a hydraulic shock absorber and the aforementioned oil pump drive system 100. The oil pump 45 adjusts the flow direction of the oil by rotating forward or backward, thereby adjusting the movement direction of the hydraulic shock absorber.

[0059] In practice, the hydraulic shock absorbers of the active suspension and the oil pump 45 are part of the hydraulic control system. Specifically, the motor drives the hydraulic shock absorbers through hydraulic principles to achieve precise control of the vehicle's suspension system. This design allows each wheel to be adjusted independently, thereby optimizing the vehicle's handling and comfort. The hydraulic shock absorbers work on hydraulic principles. When the vehicle encounters uneven road surfaces, the piston inside the hydraulic shock absorber moves up and down, forcing oil to flow through small holes, thereby generating damping force and dissipating vibration energy. The oil pump 45 provides the necessary hydraulic power to ensure that the hydraulic shock absorbers can work properly. This design allows the vehicle to better absorb and dampen impacts from the road surface during driving, improving ride stability and comfort.

[0060] Therefore, the active suspension assembly of this utility model can simultaneously control the forward and reverse rotation of two oil pumps 45 through one drive component 1, thereby improving control efficiency and saving control costs. This allows the active suspension assembly to independently control the operation of each oil pump 45 according to actual road conditions, thereby improving the stability and comfort of vehicle driving.

[0061] This utility model embodiment also discloses a vehicle including the above-mentioned active suspension assembly, which enables each oil pump 45 to work independently, thereby enabling the corresponding hydraulic shock absorbers to work independently, and reducing the number of drive components 1, thus reducing development costs. At the same time, the structural layout of the planetary gear reducer 4 saves axial space, improving the flexibility and economy of the vehicle's active suspension assembly control.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A drive system for an oil pump, characterized in that, include: Two oil pumps, each adapted to supply oil to the hydraulic shock absorbers on both sides of the vehicle in the lateral direction; The drive unit and the planetary gear reducer mechanism are provided. One end of the drive unit is powered to the oil pump on one side through a set of planetary gear reducers, and the other end is powered to the oil pump on the other side through another set of planetary gear reducers. The drive unit outputs power to the planetary gear reducer and controls the gear ring of the planetary gear reducer to rotate forward or backward, thereby causing the gear ring to drive the oil pump to rotate forward or backward.

2. The oil pump drive system according to claim 1, characterized in that, It also includes a brake and a clutch, the drive unit and the planetary gear reducer are disposed in the housing, and the brake selectively connects the planet carrier of the planetary gear reducer to the housing; The clutch can selectively connect the sun gear of the planetary gear reducer to the planet carrier, or selectively connect the sun gear to the ring gear, or selectively connect the planet carrier to the ring gear.

3. The oil pump drive system according to claim 2, characterized in that, When the planetary carrier is connected to the housing and the sun gear is disconnected from the planetary carrier, the sun gear drives the planetary gear to rotate, and the planetary gear drives the ring gear to rotate in reverse, thereby driving the oil pump to rotate in reverse. When the planetary carrier is disconnected from the housing and the sun gear is connected to the planetary carrier, the sun gear drives the planetary gear and the planetary carrier to move synchronously, thereby controlling the ring gear to rotate in the forward direction, thereby driving the oil pump to rotate in the forward direction.

4. The oil pump drive system according to claim 2, characterized in that, When the planetary carrier is connected to the housing and the sun gear is disconnected from the ring gear, the sun gear drives the planetary gear to rotate, and the planetary gear drives the ring gear to rotate in reverse. When the planetary carrier is disconnected from the housing and the sun gear is connected to the ring gear, the sun gear drives the planetary gear and the planetary carrier to move together, so that the planetary gear drives the ring gear to rotate, thereby driving the oil pump to rotate in the forward direction.

5. The oil pump drive system according to claim 2, characterized in that, When the planetary carrier is connected to the housing and disconnected from the gear ring, the rotation of the sun gear drives the planetary gear to rotate, and the planetary gear drives the gear ring to rotate in reverse. When the planetary carrier is disconnected from the housing and connected to the gear ring, the rotation of the sun gear drives the planetary gear, the planetary carrier and the gear ring to rotate synchronously, thereby driving the oil pump to rotate forward.

6. The oil pump drive system according to claim 1, characterized in that, The drive unit outputs power to the planetary gear reducer to control one of the oil pumps to rotate forward and the other oil pump to rotate in reverse, or to control both oil pumps to rotate forward, or to control both oil pumps to rotate in reverse.

7. The oil pump drive system according to claim 6, characterized in that, When the drive unit simultaneously controls the oil pumps on both sides to rotate forward, the speed ratio output by the drive unit to the oil pumps on both sides is the same. When the drive unit simultaneously controls the oil pumps on both sides to reverse, the speed ratio output by the drive unit to the oil pumps on both sides is the same.

8. The oil pump drive system according to claim 1, characterized in that, The output shaft of the drive unit is coaxially arranged with the input shaft of the oil pump.

9. An active suspension assembly, characterized in that, The system includes a hydraulic damper and a drive system for an oil pump as described in any one of claims 1-8, wherein the oil pump adjusts the flow direction of the oil by rotating forward or backward, thereby adjusting the movement direction of the hydraulic damper.

10. A vehicle, characterized in that, Includes the active suspension assembly as described in claim 9.

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