Motor pump module, suspension system and vehicle

Abstract

The utility model discloses a motor pump module, suspension system and vehicle relates to motor pump technical field, wherein the motor pump module includes two motor pumps and electric control unit, the two motor pumps are arranged side by side, the motor pump includes motor and hydraulic pump that are connected mutually, and the two hydraulic pumps are arranged adjacent to each other; the electric control unit is connected to one sides of the two motor pumps and electrically connected with the two motors. According to the technical scheme, the integration degree of the suspension system can be improved, the overall size of the suspension system can be reduced, flexible arrangement in the limited space of a vehicle is facilitated, and meanwhile installation, adjustment and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of motor pumps, and particularly relates to a motor pump module, a suspension system and a vehicle. Background Art

[0002] In an electric suspension system of a vehicle, a motor pump is respectively arranged corresponding to each wheel and cooperates with a shock absorber to relieve vibration and ensure that the wheel fits the road surface. In the prior art, the motor pumps of different wheels are respectively controlled by different electronic control units (full name: motor controller control unit), and different motor pumps are independent of each other and separately arranged on the vehicle, resulting in a large overall space occupied by the suspension system, complex wiring, low integration, and inconvenience for installation and maintenance. Summary of the Utility Model

[0003] The main object of the utility model is to provide a motor pump module, a suspension system and a vehicle, aiming to improve the integration degree of the suspension system, reduce the overall volume of the suspension system, facilitate flexible arrangement in the limited space of the vehicle, and be convenient for installation, adjustment and maintenance at the same time.

[0004] To achieve the above object, the motor pump module proposed by the utility model includes:

[0005] Two motor pumps, the two motor pumps are arranged side by side, each motor pump includes a motor and a hydraulic pump connected to each other, and the two hydraulic pumps are arranged adjacent to each other; and

[0006] An electronic control unit, the electronic control unit is connected to one side of the two motor pumps and is respectively electrically connected to the two motors.

[0007] In an embodiment, the electronic control unit includes a controller housing and a controller, the controller housing is hermetically connected to the motor housings of the two motors and forms an electronic control cavity, and the controller is arranged in the electronic control cavity and is respectively electrically connected to the two motors.

[0008] In an embodiment, the motor pump further includes a detection component, the detection component includes at least one sensor, at least part of the structure of the sensor is arranged in the hydraulic cavity of the hydraulic pump and is electrically connected to the electronic control unit, and the sensor is used to detect at least one of the oil pressure and temperature in the hydraulic pump.

[0009] In an embodiment, an external channel communicating with the hydraulic cavity is provided on the pump housing of the hydraulic pump, the detection component further includes a signal line electrically connected to the sensor, and the signal line extends along the external channel to the electronic control unit and is electrically connected to the electronic control unit.

[0010] In one embodiment, the motor pump further includes a position sensor which is arranged at one end of the motor away from the hydraulic pump and electrically connected to the electronic control unit, and is used for detecting at least one of the rotational speed and position of the rotor in the motor.

[0011] In one embodiment, the motor housing of the motor is provided with an installation cavity and a wire passing channel located outside the installation cavity. The installation cavity is used for installing the stator and rotor of the motor;

[0012] The transmission line connected to the position sensor passes through the wire passing channel and extends to be electrically connected to the electronic control unit.

[0013] In one embodiment, the pump housings of the two hydraulic pumps are of an integral structure;

[0014] Or, the pump housings of the two hydraulic pumps are of a split structure.

[0015] In one embodiment, the motor housing of the motor is detachably connected to or is of an integral structure with the pump housing of the hydraulic pump;

[0016] And / or, the hydraulic pump is an internal gear pump.

[0017] The present utility model further provides a suspension system, including at least two shock absorbers and the motor pump module as described in any one of the foregoing embodiments. Two of the shock absorbers respectively correspond to the two motor pumps of the motor pump module, and the shock absorbers are communicated with the hydraulic pumps of the motor pumps through hydraulic pipes.

[0018] The present utility model further provides a vehicle, including the foregoing suspension system.

[0019] The technical solution of the present utility model integrates two motor pumps into a modular structure, uses the same electronic control unit to control the operating states of the motors of the two motor pumps, and reduces the number of electronic control units; and connects the electronic control unit and the two motor pumps into one body, making the motor pump module structure compact and highly integrated, which can reduce the volume and weight of the motor pump module, facilitate the installation of the motor pump module on the suspension system or vehicle, and there is no need to install the two motor pumps separately. And the two hydraulic pumps in the motor pump module are located between the two motors, and the user does not need to move when connecting the hydraulic pipes to the two hydraulic pumps, which is convenient for operation. That is, the motor pump module of the present utility model is integrally arranged, reducing the overall volume of the suspension system, facilitating flexible arrangement in the limited space of the vehicle, and at the same time facilitating installation adjustment and maintenance. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a model diagram of an embodiment of the suspension system provided by the present invention.

[0022] Explanation of the reference numerals in the drawings:

[0023] 100. Suspension system; 1. Motor pump module; 11. Motor pump; 111. Motor; 112. Hydraulic pump; 113. Detection component; 1131. Sensor; 1132. Signal line; 114. Position sensor; 12. Electronic control unit; 2. Shock absorber; 3. Hydraulic pipe.

[0024] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments and with reference to the drawings. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] In a vehicle's electric suspension system, each wheel is equipped with a motor pump and shock absorber to mitigate vibration and ensure wheel contact with the road surface. In existing technology, the motor pumps for different wheels are controlled by separate electronic control units (ECUs). These motor pumps are independently and separately located on the vehicle, resulting in a large overall suspension system footprint, complex wiring, low integration, and inconvenient installation and maintenance.

[0029] Based on the above problems, the present invention proposes a motor pump module 1.

[0030] See also Figure 1 In one embodiment of the present invention, the motor pump module 1 includes two motor pumps 11 and an electronic control unit 12. The two motor pumps 11 are arranged side by side. The motor pump 11 includes a connected motor 111 and a hydraulic pump 112. The two hydraulic pumps 112 are arranged adjacent to each other; the electronic control unit 12 is connected to one side of the two motor pumps 11 and is electrically connected to the two motors 111 respectively.

[0031] In this embodiment, the motor pump module 1 is formed by combining two motor pumps 11 and an electronic control unit 12 for controlling the two motor pumps 11. The motor pump 11 includes a connected motor 111 and a hydraulic pump 112. The motor 111 includes a motor housing and a stator and a rotor disposed in the motor housing. The motor housing is provided with an installation cavity, and at least one end of the motor housing is provided with an opening communicating with the installation cavity. The hydraulic pump 112 can be a gear pump or a piston pump. The hydraulic pump 112 includes a pump housing and movable structures such as gears or pistons located in the pump housing. The pump housing is hermetically connected to the end of the motor housing provided with the opening. The pump housing and the motor housing can be detachably connected by structures such as bolts. At this time, a sealant or a gasket can be provided between the motor housing and the pump housing to improve the sealing performance; the pump housing and the motor housing can also be hermetically connected by welding or the like, or at least part of the structure of the pump housing can be integrally formed with the motor housing. The movable structure in the hydraulic pump 112 is in transmission cooperation with the rotor of the motor 111 and can move under the drive of the motor 111 so that the hydraulic pump 112 sucks and discharges liquid. In this embodiment, when the two motor pumps 11 are combined into the motor pump module 1, the hydraulic pumps 112 of the two motor pumps 11 are arranged adjacent to each other, and the user does not need to move when connecting the hydraulic pipes 3 to the two hydraulic pumps 112, which is convenient for operation.

[0032] The electronic control unit 12, that is, the motor controller control unit, includes a controller for controlling the operation of the two motor pumps 11. The controller is electrically connected to the motors 111 of the two motor pumps 11 respectively and can control the operation states of the two motors 111 respectively. The operations of the two motor pumps 11 are independent of each other. Among them, the controller in the electronic control unit 12 can be set as a circuit board integrated with electrical components and / or devices, or can be set as other structures; optionally, the controller includes a main control board and a power board. Using the same electronic control unit 12 to control the operation states of the motors 111 of the two motor pumps 11 reduces the number of electronic control units 12, reduces the volume and weight of the motor pump module 1, and improves the integration degree of the motor pump module 1.

[0033] Connecting the electronic control unit 12 to the two motor pumps 11 can be achieved by connecting the electronic control unit 12 to the motor housing. Optionally, the electronic control unit 12 is provided with a controller housing. Connecting the controller housing to the motor housing can directly form an electronic control cavity in the controller housing, or an electronic control cavity can be formed by enclosing the controller housing and the motor housing, and the controller is arranged in the electronic control cavity, which can improve the sealing performance and electromagnetic interference resistance of the motor pump module 1 and reduce the risk of damage to the controller. In some embodiments, the controller can be directly connected to the motor housing.

[0034] Therefore, it can be understood that the technical solution of the present invention integrates the two motor pumps 11 into a modular structure, utilizing the same electronic control unit 12 to control the operating status of the motors 111 of the two motor pumps 11, thereby reducing the number of electronic control units 12. Furthermore, the electronic control unit 12 is integrated with the two motor pumps 11, making the motor pump module 1 compact and highly integrated. This reduces the volume and weight of the motor pump module 1, facilitating installation of the motor pump module 1 on the suspension system 100 or vehicle without requiring separate installation of the two motor pumps 11. Furthermore, the two hydraulic pumps 112 in the motor pump module 1 are located between the two motors 111, eliminating the need for the user to move the hydraulic pipes 3 when connecting the two hydraulic pumps 112, thus facilitating operation. In other words, the integrated layout of the motor pump module 1 of the present invention reduces the overall volume of the suspension system 100, facilitating flexible deployment within the limited space of the vehicle, and facilitating installation, adjustment, and maintenance.

[0035] In one embodiment, the electronic control unit 12 includes a controller housing and a controller. The controller housing is sealed and connected to the motor housings of the two motors 111 to form an electronic control cavity. The controller is disposed in the electronic control cavity and is electrically connected to the two motors 111 respectively.

[0036] In this embodiment, the electronic control unit 12 includes a controller housing for forming an electronic control cavity and a controller installed in the electronic control cavity. The controller can be configured as a circuit board integrated with electrical components and / or devices, or can be configured as other structures; optionally, the controller includes a main control board and a power supply board. The controller housing is sealed and connected to the motor housing to enclose and form an electronic control cavity. The electronic control cavity can be set in the controller housing, or the controller housing and the motor housing can be enclosed to form an electronic control cavity. In this case, part of the outer wall of the motor housing serves as part of the inner wall of the electronic control cavity. The provision of the controller housing can improve the sealing and anti-electromagnetic interference capabilities of the motor pump module 1 and reduce the risk of damage to the controller.

[0037] Optionally, the controller housing and the motor housing may be connected integrally by welding or adhesive bonding, or may be bolted and sealed with a sealant or gasket. The shape of the resulting electronic control cavity may be adapted to that of the controller, or may be configured in other shapes.

[0038] See also Figure 1 In one embodiment, the motor pump 11 further includes a detection component 113, the detection component 113 includes at least one sensor 1131, at least part of the structure of the sensor 1131 is arranged in the hydraulic chamber of the hydraulic pump 112, and is electrically connected to the electronic control unit 12, and the sensor 1131 is used to detect at least one of the oil pressure and temperature in the hydraulic pump 112.

[0039] In this embodiment, each set of motor pumps 11 is further provided with a detection component 113 for detecting the oil state in the hydraulic pump 112. The sensor 1131 of the detection component 113 can be one, two or more than two. The sensor 1131 is arranged in the hydraulic chamber of the hydraulic pump 112. The sensor 1131 can be set as one of a pressure sensor 1131, a temperature sensor 1131 and a pressure-temperature sensor 1131, and is used to detect the temperature and / or pressure of the oil in the hydraulic chamber. The sensor 1131 is electrically connected to the controller of the electronic control unit 12, and can transmit the detection signal to the controller for signal processing, so as to better control the operating state of the motor pump 11 according to the oil state. Optionally, the sensor 1131 can be electrically connected to the controller of the electronic control unit 12 through a signal line 1132. The signal line 1132 can be arranged inside the motor housing and extend outward, or can extend to the electronic control unit 12 through an external channel of the pump housing in the following embodiment. In addition, the sensor 1131 and the controller of the electronic control unit 12 can also be respectively provided with a socket and a plug, so that the sensor 1131 and the controller are electrically connected by means of plugging and matching of the socket and the plug. Optionally, the detection component 113 includes two sensors 1131 arranged in the hydraulic chamber, and the two sensors 1131 are respectively used to detect the oil states of the liquid inlet and the liquid outlet; the two sensors 1131 can be the same sensor 1131 or different sensors 1131. For example, both of the two sensors 1131 can be set as pressure sensors 1131, or both can be set as temperature sensors 1131 or pressure-temperature sensors 1131. It is also possible that one of the two sensors 1131 is one of a pressure sensor 1131, a temperature sensor 1131 and a pressure-temperature sensor 1131, and the other is another one of a pressure sensor 1131, a temperature sensor 1131 and a pressure-temperature sensor 1131.

[0040] In an embodiment, the pump housing of the hydraulic pump 112 is provided with an external channel communicating with the hydraulic chamber. The detection component 113 further includes a signal line 1132 electrically connected to the sensor 1131. The signal line 1132 extends along the external channel to the electronic control unit 12 and is electrically connected to the electronic control unit 12.

[0041] In this embodiment, the signal line 1132 connecting the sensor 1131 passes out of the hydraulic chamber from the external channel and extends to be electrically connected to the controller of the electronic control unit 12; among them, the external channel can be communicated with the electronic control cavity of the electronic control unit 12, so that the signal line 1132 or the adapter connected to the signal line 1132 penetrates into the electronic control cavity. Optionally, a sealing structure such as sealant or sealing ring can be provided between the signal line 1132 and the external channel to avoid oil leakage. This setting method shortens the routing path of the signal line 1132, neither requires a long signal line 1132 nor increases the wiring difficulty; and the signal line 1132 does not need to pass through the motor housing, so there is no need to set a complex sealing structure in the motor housing, reducing the sealing difficulty in the motor 111 and simplifying the structural design and sealing requirements of the motor 111.

[0042] Please refer to Figure 1 , in one embodiment, the motor pump 11 further includes a position sensor 114, which is arranged at one end of the motor 111 away from the hydraulic pump 112 and is electrically connected to the electronic control unit 12 for detecting at least one of the rotational speed and position of the rotor in the motor 111.

[0043] In this embodiment, the position sensor 114 can be, but is not limited to, one or a combination of an optical encoder, a Hall sensor 1131, a capacitive sensor 1131, a magnetoresistive sensor 1131, and a resolver. The position sensor 114 can be used to detect the rotational speed of the rotor, or detect the position of the rotor, or can be used to simultaneously detect the rotational speed and position of the rotor; it is beneficial to accurately monitor and control the operating state of the motor 111, so as to accurately control the liquid suction and discharge speed and liquid volume of the hydraulic pump 112.

[0044] Optionally, the position sensor 114 and the controller of the electronic control unit 12 can be electrically connected through a transmission line. The transmission line can be routed outside the motor pump module 1, or the transmission line can be arranged in the motor housing, which is not limited here.

[0045] In one embodiment, the motor housing of the motor 111 is provided with an installation cavity and a wire passing channel outside the installation cavity. The installation cavity is used to install the stator and rotor of the motor 111; the transmission line connected to the position sensor 114 passes through the wire passing channel and extends to be electrically connected to the electronic control unit 12.

[0046] In this embodiment, position sensor 114 is electrically connected to the controller of electronic control unit 12 via a transmission line. A mounting cavity and a wire passage are provided in the motor housing. The mounting cavity is used to mount the stator and rotor of motor 111. Position sensor 114 can be installed in its entirety or in part within the mounting cavity, or it can be located outside the mounting cavity at one end away from the hydraulic pump. The transmission line is threaded through the transmission line, with both ends of the transmission line connected to position sensor 114 and electronic control unit 12, respectively. This arrangement prevents the transmission line from being immersed in oil and provides protection for the transmission line. Furthermore, the motor housing provides good anti-interference protection, preventing interference with the detection signal transmission.

[0047] In one embodiment, the pump housings of the two hydraulic pumps 112 are of an integrated structure. This arrangement can improve the overall structural strength and stability of the motor pump module 1 and reduce the number of components in the motor pump module 1. In some embodiments, after the motor pump module 1 is assembled, the motor housing and the controller housing of the electronic control unit 12 are welded or otherwise integrated into an integrated structure. In this case, the number of housings in the motor pump module 1 can be reduced to two: an integrated housing comprising the controller housing and the two motor housings, and an integrated housing comprising the two pump housings. This further improves the integration of the motor pump module 1 and makes the structure of the motor pump module 1 more compact and stable.

[0048] Optionally, the two pump casings may be integrally formed, for example, may be integrally cast or machined from the same blank. The two pump casings may also be combined into an integral structure by welding or other methods.

[0049] In one embodiment, the pump housings of the two hydraulic pumps 112 are split structures.

[0050] In this embodiment, the two pump housings are split structures, meaning they can be installed separately and separated into two independent pump housings after disassembling the motor-pump module 1. Optionally, when assembling the motor-pump module 1, the two pump housings can be interconnected to enhance the overall structural strength and stability of the motor-pump module 1. For example, the two pump housings can be connected using bolts or other connectors, or the two pump housings can be configured to have a mutually snap-fit or plug-fit connection. Furthermore, the two pump housings can be disconnected after assembling the motor-pump module 1.

[0051] In one embodiment, the motor housing of the motor 111 is detachably connected to the pump housing of the hydraulic pump 112. The motor housing and the hydraulic pump 112 may be connected by bolts or other fasteners, or may be detachably connected by threaded connections, to facilitate assembly and disassembly of the motor pump 111 and maintenance. Optionally, a sealant or gasket may be provided between the motor housing and the pump housing to improve sealing.

[0052] In one embodiment, the motor housing of the motor 111 and the pump housing of the hydraulic pump 112 are an integrated structure.

[0053] In this embodiment, the motor housing and the pump housing are an integrated structure, meaning that after being assembled into the motor pump 11, the motor housing and the pump housing are non-detachable. The motor pump 11 and the pump housing can be integrally formed, for example, by casting or machining from the same blank. In this case, mounting openings can be provided on the motor housing or the pump housing to facilitate loading other workpieces into the motor housing and the pump housing, and the mounting openings can be closed after assembly is complete. Alternatively, after loading other workpieces into the motor housing and the pump housing respectively, the motor housing and the pump housing can be connected as one by welding or other means. This arrangement is conducive to improving the overall structural strength and stability of the motor pump module 1.

[0054] In one embodiment, the hydraulic pump 112 is an internal gear pump.

[0055] Specifically, the internal gear pump adopts the principle of internal meshing of gears. Internal gear teeth are provided in the pump housing. The internal gear is set as a movable structure to connect with the motor 111. The pitch circles of the internal and external gears are close to each other. When the motor 111 drives the gears to rotate, the volume of the space on the side where the gears are disengaged increases from small to large, generating a vacuum or low pressure, sucking in the liquid. The volume of the space on the side where the gears are meshed decreases from large to small, and the liquid is squeezed into the hydraulic pipe 3. The internal gear pump has a compact structure and a relatively small volume, which is conducive to reducing the volume and weight of the motor pump module 1. In addition, the internal gear pump has smooth liquid delivery, stable performance, and low operating noise during operation.

[0056] See also Figure 1 The present invention also proposes a suspension system 100, which includes at least two shock absorbers 2 and a motor pump module 1. The specific structure of the motor pump module 1 refers to any of the above embodiments. The suspension system 100 includes at least two shock absorbers 2. The shock absorber 2 is connected to the hydraulic pump 112 of a motor pump 11 of the motor pump module 1 through a hydraulic pipe 3 for transmission cooperation. Two hydraulic pipes 3 are set between the shock absorber 2 and the hydraulic pump 112, which are used for liquid inlet and liquid outlet respectively. The motor 111 drives the hydraulic pump 112 to realize liquid suction and discharge, thereby changing the damping characteristics of the shock absorber 2 and adjusting the height of the suspension.

[0057] Since the suspension system 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0058] The present utility model further provides a vehicle, which includes a vehicle body and a suspension system 100. The specific structure of the suspension system 100 refers to the above-mentioned embodiments. The suspension system 100 is arranged on the vehicle body, and the shock absorber 2 of the suspension system 100 is in driving cooperation with the wheels of the vehicle body. The vehicle provided by the present utility model can be an electric vehicle, a fuel vehicle or a hybrid vehicle, which is not limited herein.

[0059] Since the vehicle provided by the present utility model adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated herein one by one.

[0060] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the technical concept of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A motor pump module, characterized in that, Comprising: Two motor pumps, the two motor pumps are arranged side by side, each motor pump includes a motor and a hydraulic pump connected to each other, and the two hydraulic pumps are arranged adjacent to each other; And An electronic control unit, the electronic control unit is connected to one side of the two motor pumps and is electrically connected to the two motors respectively.

2. The motor pump module according to claim 1, wherein The electronic control unit includes a controller housing and a controller. The controller housing is hermetically connected to the motor housings of the two motors and forms an electronic control cavity. The controller is arranged in the electronic control cavity and is electrically connected to the two motors respectively.

3. The motor pump module according to claim 1, wherein The motor pump further includes a detection component, the detection component includes at least one sensor, at least a part of the structure of the sensor is arranged in the hydraulic cavity of the hydraulic pump and is electrically connected to the electronic control unit, and the sensor is used to detect at least one of the oil pressure and temperature in the hydraulic pump.

4. The motor pump module according to claim 3, wherein The pump housing of the hydraulic pump is provided with an external channel communicating with the hydraulic cavity. The detection component further includes a signal line electrically connected to the sensor. The signal line extends along the external channel to the electronic control unit and is electrically connected to the electronic control unit.

5. The motor pump module according to claim 1, characterized in that, The motor pump further includes a position sensor, the position sensor is arranged at one end of the motor away from the hydraulic pump and is electrically connected to the electronic control unit, and is used to detect at least one of the rotation speed and position of the rotor in the motor.

6. The motor pump module according to claim 5, wherein The motor housing of the motor is provided with an installation cavity and a wire passing channel located outside the installation cavity. The installation cavity is used to install the stator and rotor of the motor; The transmission line connected to the position sensor passes through the wire passing channel and extends to be electrically connected to the electronic control unit.

7. The motor pump module according to claim 1, wherein The pump housings of the two hydraulic pumps are of an integral structure; Or, the pump housings of the two hydraulic pumps are of a split structure.

8. The motor pump module according to any one of claims 1 to 7, characterized in that The motor housing of the motor is detachably connected to the pump housing of the hydraulic pump or is of an integral structure; And / or, the hydraulic pump is an internal gear pump.

9. A suspension system, characterized in that, Comprising at least two shock absorbers and the motor pump module as described in any one of claims 1 to 8, wherein the two shock absorbers respectively correspond to the two motor pumps of the motor pump module, and the shock absorbers are communicated with the hydraulic pumps of the motor pumps through hydraulic pipes.

10. A vehicle, characterized in that, Comprising the suspension system as described in claim 9.

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