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 speed reducing mechanism. The two oil pumps are suitable for supplying oil to hydraulic shock absorbers on the two sides of the vehicle in the transverse direction. Wherein each set of speed reducing mechanism comprises a reverse gear set and a forward gear set, and the driving piece is selectively in power connection with the reverse gear set or the forward gear set of one set of speed reducing mechanism so as to control the oil pump on one side to rotate forwards or reversely. And the reverse gear set or the forward gear set of the other speed reducing mechanism is selectively in power connection so as to control the forward rotation or reverse rotation of the oil pump on the other side. According to the driving system of the oil pump, the number of driving parts is reduced on the basis that the functional requirement of an active suspension is met, and the development cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to a drive system of oil pump, initiative suspension assembly and vehicle. BACKGROUND

[0002] When the current vehicle off-road, different off-road conditions require different height of the vehicle, thus, there are some active suspension that can be actively adjusted, active suspension increases hydraulic shock absorber on the basis of air spring, through active to hydraulic shock absorber to charge and unload oil, realize the initiative of vehicle lifting and lowering, facilitate better adapt to the environment, at the same time four wheels need to be able to independently realize lifting, ensure the stability of the vehicle.

[0003] But the current active suspension drive system mostly adopts the mode of motor and high pressure oil pump drive to drive, since each wheel needs to realize lifting, therefore needs four sets of motor to control, and the cost is higher. UTILITY MODEL CONTENTS

[0004] The utility model aims at at least one of the prior art technical problems existing in the prior art. Therefore, the utility model provides a drive system of oil pump, which reduces the number of driving parts and development cost on the basis of realizing the function requirement of active suspension.

[0005] The drive system of oil pump according to the utility model embodiment comprises an oil pump, a driving part and a speed reduction mechanism, the oil pump is two and is suitable for supplying oil to hydraulic shock absorbers on both sides of the vehicle in the transverse direction respectively, wherein each set of speed reduction mechanism comprises a reverse gear set and a forward gear set, the driving part selectively power connects the reverse gear set or the forward gear set of one set of speed reduction mechanism to control the forward rotation or reverse rotation of the oil pump on one side, and selectively power connects the reverse gear set or the forward gear set of another set of speed reduction mechanism to control the forward rotation or reverse rotation of the oil pump on the other side.

[0006] The drive system of oil pump according to the utility model embodiment drives two oil pumps on both sides of the vehicle through one driving part, and can drive the forward rotation or reverse rotation of the two oil pumps to adjust the lifting or lowering of the suspension of the vehicle through the oil pump, so that only two driving parts are needed when supplying oil to four hydraulic shock absorbers, thereby reducing the number of driving parts and development cost.

[0007] The drive system of oil pump according to the utility model embodiment, the reverse gear set and the forward gear set are distributed along the axial direction of the output shaft of the driving part, and the reverse gear set and the forward gear set selectively output power to the input shaft of the oil pump.

[0008] The driving system of the oil pump according to the embodiment of the utility model, parallel interval distribution between the input shaft of the oil pump and the output shaft of the driving part.

[0009] The driving system of the oil pump according to the embodiment of the utility model, the positive rotation gear set includes a positive rotation driving gear, a positive rotation driven gear and an idler gear, the driving part transmits power to the positive rotation driving gear, the positive rotation driving gear is engaged with the idler gear, and the idler gear is power connected with the positive rotation driven gear, and the positive rotation driven gear selectively power connects the input shaft of the oil pump.

[0010] The driving system of the oil pump according to the embodiment of the utility model, the reverse rotation gear set includes a reverse rotation driving gear and a reverse rotation driven gear, the reverse rotation driving gear is power connected with the output shaft of the driving part, the reverse rotation driven gear is engaged with the reverse rotation driving gear, and the reverse rotation driven gear selectively power connects the input shaft of the oil pump.

[0011] The driving system of the oil pump according to the embodiment of the utility model further includes a first clutch and a second clutch, the positive rotation driven gear and the reverse rotation driven gear are both sleeved on the input shaft of the oil pump, the positive rotation driven gear is selectively power connected with the input shaft of the oil pump through the first clutch, and the reverse rotation driven gear is selectively power connected with the input shaft of the oil pump through the second clutch.

[0012] The driving system of the oil pump according to the embodiment of the utility model, the first clutch and the second clutch are both located between the positive rotation driven gear and the reverse rotation driven gear, and the first clutch and the second clutch are connected on the side close to each other, and both power connect the input shaft of the oil pump through a common shaft.

[0013] The driving system of the oil pump according to the embodiment of the utility model, one of the first clutch and the second clutch is a one-way clutch, and the other is a wet shift clutch.

[0014] The embodiment of the utility model further provides an active suspension assembly, which comprises a hydraulic shock absorber and the driving system of the oil pump, and the oil pump adjusts the flow direction of oil liquid through positive rotation or reverse rotation, and further adjusts the movement direction of the hydraulic shock absorber.

[0015] The active suspension assembly of the oil pump according to the embodiment of the utility model controls the positive rotation or reverse rotation of the oil pumps on both sides to control the lifting or lowering of the shock absorber, so as to adapt to a suitable road section, that is, the active suspension assembly adopts one driving part to drive two oil pumps corresponding to two wheels to work, compared with the mode that four driving parts are required for four wheels, the number of driving parts can be reduced on the basis of realizing the active suspension function requirement, and the development cost is reduced.

[0016] The utility model discloses an active suspension assembly and a vehicle.

[0017] The vehicle has the same advantages as the prior art and the active suspension assembly, which will not be repeated here.

[0018] The additional aspects and advantages of the utility model will be partly given in the following description, partly become obvious from the following description or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0020] Figure 1 It is the structure schematic diagram of the drive system of the oil pump of the utility model embodiment;

[0021] Figure 2 It is the power transmission schematic diagram of the oil pump of the utility model embodiment of left side positive rotation and right side oil pump positive rotation;

[0022] Figure 3 It is the power transmission schematic diagram of the oil pump of the utility model embodiment of left side positive rotation and right side oil pump reverse rotation;

[0023] Figure 4 It is the power transmission schematic diagram of the oil pump of the utility model embodiment of left side reverse rotation and right side oil pump positive rotation;

[0024] Figure 5 It is the power transmission schematic diagram of the oil pump of the utility model embodiment of left side reverse rotation and right side oil pump reverse rotation;

[0025] REFERENCE NUMERALS:

[0026] The drive system 100 of the oil pump,

[0027] Driving piece 1, motor rotor 11, motor stator 12, reverse gear set 2, reverse driving gear 21, reverse driven gear 22, positive gear set 3, positive driving gear 31, idler 32, positive driven gear 33, first clutch 4, second clutch 5, oil pump 6, input shaft 61 of oil pump, common shaft 7. DETAILED DESCRIPTION

[0028] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0029] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relation shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] In the description of the utility model, it needs to be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The following refers to Figures 1-5 The driving system 100 of the oil pump 6 according to the embodiment of the utility model is described, two oil pumps 6 on both sides of the vehicle can be driven by one driving part 1, and the forward rotation or reverse rotation of the two oil pumps 6 can be driven, the rising or falling of the active suspension of the vehicle is adjusted through the oil pump 6, so that the number of driving parts 1 is reduced, and the development cost is reduced.

[0032] As Figures 1-5 The driving system 100 of the oil pump 6 according to one embodiment of the utility model, as shown in the figure, comprises: an oil pump 6, a driving part 1 and a speed reduction mechanism.

[0033] Among them, the oil pump 6 is two and is suitable for supplying oil to the hydraulic shock absorber on both sides of the vehicle in the transverse direction, one end of the driving part 1 is power connected to one side of the oil pump 6 through a group of speed reduction mechanisms, and the other end is power connected to the other side of the oil pump 6 through another group of speed reduction mechanisms, wherein each group of speed reduction mechanisms comprises a reverse gear set 2 and a forward gear set 3, the driving part 1 selectively power connects the reverse gear set 2 or the forward gear set 3 of one group of speed reduction mechanisms to control the forward rotation or reverse rotation of one side of the oil pump 6, and selectively power connects the reverse gear set 2 or the forward gear set 3 of the other group of speed reduction mechanisms to control the forward rotation or reverse rotation of the other side of the oil pump 6.

[0034] In practice, hydraulic dampers use the fluidity of liquid to dampen. When a mechanical system is subjected to an impact force or vibration, the piston inside the hydraulic damper moves, causing the liquid to flow in the sealed pipeline, generating a damping effect, thereby converting kinetic energy into heat energy and slowing down the vibration of the mechanical system. Specifically, when the suspension of a vehicle is subjected to an impact and vibrates, the oil inside the hydraulic damper repeatedly flows in the cavity through the pores. During this flow process, the friction between the pore wall and the oil and the internal friction between the oil molecules form a damping force, converting vibration energy into heat energy and dissipating into the atmosphere.

[0035] The active suspension of the embodiment of the utility model is connected with the oil pump 6 on both sides along the lateral direction of the vehicle, and the ascending and descending of the active suspension are realized by the forward rotation and reverse rotation of the oil pump 6. When the oil pump 6 rotates forward, the oil is sucked and flows into the upper cavity of the hydraulic damper through the valve inside the hydraulic damper, causing the compression of the active suspension, that is, the height of the active suspension is lowered. On the contrary, when the oil pump 6 reverses, the oil flows into the lower cavity of the hydraulic damper through the valve inside the hydraulic damper, causing the stretching of the active suspension, that is, the height of the active suspension is raised.

[0036] Specifically, when the driving member 1 simultaneously transmits power to the oil pump 6 on both ends along the lateral direction of the vehicle, each side of the driving member 1 is provided with a speed reduction mechanism. For example, the driving member 1 can transmit power to the oil pump 6 on the left side through the speed reduction mechanism on the left side. The speed reduction mechanisms on the left side and the right side both include a reverse gear set 2 and a forward gear set 3, that is, the driving member 1 can transmit power to the oil pump 6 on the left side through the forward gear set 3 on the left side, or transmit power to the oil pump 6 on the left side through the reverse gear set 2 on the left side. Of course, the driving member 1 can also simultaneously transmit power to the oil pump 6 on the right side through the forward gear set 3 on the right side, or transmit power to the oil pump 6 on the right side through the reverse gear set 2 on the right side, so as to realize the control of the driving member 1 on the oil pump 6 on both sides. For example, the oil pump 6 on both sides is controlled to rotate forward, or the oil pump 6 on both sides is controlled to reverse, or the oil pump 6 on one side is controlled to rotate forward and the oil pump 6 on the other side is controlled to reverse, so as to realize the different requirements of one driving member 1 on two oil pumps 6.

[0037] Therefore, the driving system 100 of the oil pump of the embodiment of the utility model reduces the number of driving members 1 and reduces the development cost on the basis of realizing the functional requirements of the active suspension.

[0038] In some embodiments, the reverse gear set 2 and the forward gear set 3 are distributed along the axial direction of the output shaft of the driving member 1, and the reverse gear set 2 and the forward gear set 3 selectively output power to the input shaft 61 of the oil pump.

[0039] Specifically, when the driving member 1 outputs power to the left side of the speed reduction mechanism, the power can be output to the left side of the reverse gear set 2 to control the left side of the oil pump 6 to reverse, or the power can be output to the left side of the forward gear set 3 to control the left side of the oil pump 6 to forward. Similarly, when the driving member 1 outputs power to the right side of the speed reduction mechanism, the power can be output to the right side of the reverse gear set 2 to control the right side of the oil pump 6 to reverse, or the power can be output to the right side of the forward gear set 3 to control the right side of the oil pump 6 to forward. Then, the driving member 1 can output power to the left side of the forward gear set 3 and the right side of the forward gear set 3 at the same time, or output power to the left side of the forward gear set 3 and the right side of the reverse gear set 2 at the same time, or output power to the left side of the reverse gear set 2 and the right side of the forward gear set 3 at the same time.

[0040] Thus, the forward gear set 3 in the speed reduction mechanism controls the corresponding oil pump 6 to forward, and the reverse gear set 2 controls the corresponding oil pump 6 to reverse, so that the corresponding oil pump 6 can be controlled according to actual conditions to control the corresponding side of the active suspension to rise or fall, and one driving member 1 can control the movement of the oil pumps 6 on different sides at the same time, which is convenient and cost-saving.

[0041] In some embodiments, the input shafts 61 of the oil pumps and the output shaft of the driving member 1 are parallel and spaced apart.

[0042] In practice, by parallel and spaced apart distribution between the input shafts 61 of the oil pumps and the output shaft of the driving member 1, the distance of the vehicle in the width direction can be saved, that is, the distance in the axial direction is saved, and when power is transmitted between the output shaft of the driving member 1 and the input shaft 61 of the oil pump, the power transmission of each gear in the forward gear set 3 is facilitated, and the power transmission between each gear in the reverse gear set 2 is also facilitated.

[0043] In some embodiments, the forward gear set 3 includes a forward driving gear 31, a forward driven gear 33, and an idler gear 32; the driving member 1 transmits power to the forward driving gear 31, the forward driving gear 31 is engaged with the idler gear 32, and the idler gear 32 is power-connected with the forward driven gear 33, and the forward driven gear 33 is selectively power-connected with the input shaft 61 of the oil pump.

[0044] Reference Figure 1As shown, the positive rotation driving gear 31 is fixedly sleeved on the output shaft of the driving member 1, and can transmit power to the positive rotation driving gear 31 when the output shaft of the driving member 1 rotates. The positive rotation driving gear 31 is provided with an idler gear 32 on one side and a positive rotation driven gear 33 on the other side. The positive rotation driving gear 31 and the idler gear 32 are engaged and drive the idler gear 32 to rotate when rotating. The idler gear 32 and the positive rotation driven gear 33 are power-connected, so that the positive rotation driven gear 33 is driven to rotate when the idler gear 32 rotates. The positive rotation driven gear 33 transmits the positive rotation power to the oil pump 6 when rotating to control the positive rotation of the oil pump 6. The positive rotation gear sets 3 on both sides of the driving member 1 are designed identically. In addition, the driving member 1 is a motor, which includes a motor stator 12 and a motor rotor 11. The motor rotor 11 is power-transmitted to the positive rotation gear set 3 and the reverse rotation gear set 2. The motor stator 12 is fixedly installed on the housing of the speed reduction mechanism.

[0045] In some embodiments, the reverse rotation gear set 2 includes a reverse rotation driving gear 21 and a reverse rotation driven gear 22. The reverse rotation driving gear 21 is power-connected to the output shaft of the driving member 1. The reverse rotation driven gear 22 is engaged with the reverse rotation driving gear 21 and is selectively power-connected to the input shaft 61 of the oil pump.

[0046] Continuing to refer to Figure 1 As shown, the reverse rotation driving gear 21 is fixedly sleeved on the output shaft of the driving member 1 and transmits the rotating power to the reverse rotation driving gear 21 when the output shaft of the driving member 1 rotates. One side of the reverse rotation driving gear 21 is engaged with the reverse rotation driven gear 22, and the reverse rotation driven gear 22 is power-transmitted to the input shaft 61 of the oil pump. Therefore, the driving member 1 can transmit power to the oil pump 6 through the reverse rotation driving gear 21 and the reverse rotation driven gear 22 when rotating, so as to realize the reverse rotation of the oil pump 6 driven by the driving member 1.

[0047] In some embodiments, the driving system 100 of the oil pump 6 further includes a first clutch 4 and a second clutch 5. The positive rotation driven gear 33 and the reverse rotation driven gear 22 are both fixedly sleeved on the input shaft 61 of the oil pump. The positive rotation driven gear 33 is selectively power-connected to the input shaft 61 of the oil pump through the first clutch 4. The reverse rotation driven gear 22 is selectively power-connected to the input shaft 61 of the oil pump through the second clutch 5.

[0048] Referring to Figure 1As shown, the first clutch 4 can selectively connect the forward driven gear 33 to the input shaft 61 of the oil pump, and the second clutch 5 can selectively connect the reverse driven gear 22 to the input shaft 61 of the oil pump. For example, when the forward driven gear 33 is connected to the input shaft 61 of the oil pump through the first clutch 4, the second clutch 5 is disengaged. Since the reverse driven gear 22 is loosely fitted on the input shaft 61 of the oil pump, when the reverse driving gear 21 rotates, because the second clutch 5 does not connect the reverse driven gear 22 to the input shaft 61 of the oil pump, the rotation of the reverse driving gear 21 will not cause the reverse driven gear 22 to drive the input shaft 61 of the oil pump to rotate. However, since the first clutch 4 connects the forward driven gear 33 to the input shaft 61 of the oil pump, when the forward driven gear 33 rotates, it can drive the input shaft 61 of the oil pump to rotate, thus realizing the forward rotation of the corresponding side of the oil pump 6 controlled by the driving component 1, and the reverse rotation of the oil pump 6 on that side cannot be controlled.

[0049] Specifically, the oil pump 6 can be switched between forward and reverse rotation at will through two sets of reduction mechanisms. The forward and reverse rotation of the oil pump 6 is mainly achieved by the control of the first clutch 4 and the second clutch 5 of the left and right reduction mechanisms, as shown in Table 1 below.

[0050] Table 1

[0051]

[0052] Furthermore, when the oil pump 6 is driven in form 1, that is... Figure 2 In this way, Figure 2 A represents the power transmission path for the forward rotation of the left-side oil pump 6. The first clutch 4 on the left is engaged, and the second clutch 5 is disengaged. At this time, the drive component 1 transmits power to the forward-rotating drive gear 31, which in turn transmits power to the idler gear 32. The idler gear 32 then transmits power to the forward-rotating driven gear 33, which in turn transmits power to the input shaft 61 of the oil pump, thus achieving the forward rotation of the left-side oil pump 6. Figure 2 B also represents the power transmission path of the right-side oil pump 6 rotating forward. The right-side first clutch 4 is engaged, and the second clutch 5 is disengaged. The power transmission path is the same as that on the left.

[0053] When the drive mode of oil pump 6 is mode 2, that is... Figure 3 A represents the power transmission path of the oil pump 6 on the left side rotating forward. Similarly, Figure 3 The forward rotation transmission path is the same as in form 1, that is, the first clutch 4 is engaged and the second clutch 5 is disengaged; while Figure 3When the right oil pump 6 reverses, the first clutch 4 is disconnected, and the second clutch 5 is engaged. First, the driving member 1 transmits power to the reverse driving gear 21, the reverse driving gear 21 transmits power to the reverse driven gear 22, and the reverse driven gear 22 is power-connected with the input shaft 61 of the oil pump through the second clutch 5, that is, transmits power to the input shaft 61 of the oil pump, so as to realize the reverse rotation of the input shaft 61 of the oil pump, that is Figure 3 C on the right side represents the power transmission path of the reverse rotation of the right oil pump 6.

[0054] In addition, when the driving form of the oil pump 6 is form 3, that is, in the manner of Figure 4 the left oil pump 6 reverses, that is, the left first clutch 4 is disconnected, and the second clutch 5 is engaged, the transmission path is the same as the above-mentioned reverse transmission path, Figure 4 D represents the power transmission path of the reverse rotation of the left oil pump 6; Figure 4 B represents the power transmission path of the forward rotation of the right oil pump 6, that is, the right first clutch 4 is engaged, and the second clutch 5 is disconnected, so as to realize the forward rotation of the right oil pump 6.

[0055] When the driving form of the oil pump 6 is form 4, that is, in the manner of Figure 5 Figure 5 D represents the power transmission path of the reverse rotation of the oil pump 6, that is, the left oil pump 6 and the right oil pump 6 both reverse; the left first clutch 4 is disconnected, and the second clutch 5 is engaged, and the right first clutch 4 is disconnected, and the second clutch 5 is engaged, and the power transmission path is the same as the above-mentioned reverse power transmission path.

[0056] Therefore, it can be seen from the above table that the left oil pump 6 can be selectively rotated forward or reversed by the left first clutch 4 and the second clutch 5, and the right oil pump 6 can be selectively rotated forward or reversed by the right first clutch 4 and the second clutch 5, and the two ends of the driving member 1 need to output power to control the rotation of the oil pump 6 at the same time. For example, the forward rotation of the oil pump 6 makes the active suspension rise, and the reverse rotation makes the active suspension lower. The rotation mode of the oil pump 6 can be switched according to the actual road conditions, so as to meet the rising or lowering of the active suspension.

[0057] In some embodiments, the first clutch 4 and the second clutch 5 are located between the forward driven gear 33 and the reverse driven gear 22, and are connected to each other on one side, and are power-connected with the input shaft 61 of the oil pump through the common shaft 7.

[0058] ​In practice, one side of the first clutch 4 is connected to the input shaft 61 of the oil pump through the common shaft 7, and the other side of the first clutch 4 is connected to the forward driven gear 33 for power transmission, one side of the second clutch 5 is connected to the input shaft 61 of the oil pump through the common shaft, and the other side of the second clutch 5 is connected to the reverse driven gear 22, so that the space between the forward gear set 3 and the reverse gear set 2 can be saved, and the integration is higher.

[0059] In some embodiments, one of the first clutch 4 and the second clutch 5 is a one-way clutch, and the other is a wet shift clutch.

[0060] In practice, the one-way clutch can ensure efficient power transmission in a specific direction, reduce energy loss, and improve transmission efficiency; the one-way clutch can simplify the design of the transmission system, reduce the number of components and complexity, that is, when the one-way clutch is used for control, the energy loss is reduced while the development cost is reduced. The wet shift clutch can realize rapid and smooth gear shifting through oil lubrication and cooling, and there is almost no power interruption during gear shifting, and the gear shifting process is very smooth, thereby reducing the vibration of the active suspension.

[0061] The utility model embodiment further provides an active suspension assembly, comprising a hydraulic shock absorber and the drive system 100 of the above oil pump 6, the oil pump 6 is adjusted the flow direction of oil liquid through forward rotation or reverse rotation and is further adjusted the movement direction of hydraulic shock absorber.

[0062] In practice, the hydraulic shock absorber of the active suspension and the oil pump 6 together form part of a hydraulic control system, specifically, the motor drives the hydraulic shock absorber through hydraulic principle, realizes the accurate control to vehicle suspension system. This design makes each wheel can be independently adjusted, thereby optimizing the controllability and comfort of the vehicle;The hydraulic shock absorber works through hydraulic principle, when the vehicle encounters uneven road, the piston in the hydraulic shock absorber moves up and down, forces the oil liquid to flow through the small hole, thereby generating damping force, consumes vibration energy, and the oil pump 6 provides necessary hydraulic power to ensure that the hydraulic shock absorber can work normally;This design makes the vehicle can better absorb and attenuate the impact from the road during driving, improves the stability and comfort of driving.

[0063] Therefore, the active suspension assembly of the utility model embodiment can control the forward rotation and reverse rotation of the two oil pumps 6 through one driving piece 1, improve the control efficiency, save the control cost, realize that the active suspension assembly can control the operation of the oil pump 6 according to the actual road conditions, and improve the stability and comfort of vehicle driving.

[0064] In addition, the speed ratio of the output shaft of the driving member 1 and the output shaft of the forward rotation gear set 3 is a, the speed ratio of the output shaft of the driving member 1 and the output shaft of the reverse rotation gear set 2 is b, a and b are close or equal, so that the stability of the control is higher.

[0065] The utility model embodiment further provides a vehicle, including the above-mentioned initiative suspension assembly, can realize the independent control of two oil pumps 6 of both sides through a driving member 1, and the forward rotation and reverse rotation can also be independently carried out, the rotation mode of oil pump 6 is adjusted according to actual road condition demand, the cost of driving member 1 is saved while keeping the stability of vehicle driving.

[0066] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its 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 driving component and the reduction mechanism are provided. One end of the driving component is powered to the oil pump on one side through a set of reduction mechanisms, and the other end is powered to the oil pump on the other side through another set of reduction mechanisms. Each of the reduction mechanisms includes a reverse gear set and a forward gear set. The drive unit selectively connects to the reverse gear set or the forward gear set of one reduction mechanism to control the forward or reverse rotation of the oil pump on one side, and selectively connects to the reverse gear set or the forward gear set of another reduction mechanism to control the forward or reverse rotation of the oil pump on the other side.

2. The oil pump drive system according to claim 1, characterized in that, The reverse gear set and the forward gear set are axially distributed along the output shaft of the drive unit, and the reverse gear set and the forward gear set selectively output power to the input shaft of the oil pump.

3. The oil pump drive system according to claim 2, characterized in that, The input shaft of the oil pump and the output shaft of the drive are distributed in parallel at intervals.

4. The oil pump drive system according to claim 1, characterized in that, The forward gear set includes a forward driving gear, a forward driven gear, and an idler gear; The drive unit transmits power to the forward-rotating drive gear, which meshes with the idler gear, and the idler gear is poweredly connected to the forward-rotating driven gear. The forward-rotating driven gear is selectively poweredly connected to the input shaft of the oil pump.

5. The oil pump drive system according to claim 4, characterized in that, The reversing gear set includes a reversing driving gear and a reversing driven gear; The reverse drive gear is powered to the output shaft of the drive unit, the reverse driven gear meshes with the reverse drive gear, and the reverse driven gear is selectively powered to the input shaft of the oil pump.

6. The oil pump drive system according to claim 5, characterized in that, It also includes a first clutch and a second clutch. The forward driven gear and the reverse driven gear are both loosely fitted onto the input shaft of the oil pump. The forward driven gear is selectively connected to the input shaft of the oil pump through the first clutch, and the reverse driven gear is selectively connected to the input shaft of the oil pump through the second clutch.

7. The oil pump drive system according to claim 6, characterized in that, Both the first clutch and the second clutch are located between the forward driven gear and the reverse driven gear, and the first clutch and the second clutch are connected on the side closest to each other, and both are poweredly connected to the input shaft of the oil pump via a common shaft.

8. The oil pump drive system according to claim 6, characterized in that, The first clutch and the second clutch are both one-way clutches and wet shift clutches, respectively.

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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