Electric control suspension driving device, suspension system and vehicle

Abstract

The utility model discloses an electric control suspension driving device, suspension system and vehicle relates to motor pump technical field, wherein, the electric control suspension driving device includes two motor shell and controller shell, the two motor shell is arranged side by side and mutually connected, motor shell is equipped with motor installation cavity, motor shell is equipped with the interface facing the other motor shell; the controller shell is arranged on the sides of the two motor shells and connected with the two motor shells so that a controller installation cavity can be defined by the controller shell and the two motor shells. Wherein the two motor shells are in axial sealing connection through a first sealing unit, the first sealing unit comprises a metal piece clamped between the two motor shells, and the controller shell and the motor shells are in sealing connection through a second sealing unit. According to the technical scheme, the sealing performance of the electric control suspension driving device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor pumps, and in particular to an electronically controlled suspension drive device, a suspension system and a vehicle. Background Art

[0002] In the active suspension system of a vehicle, a motor pump is usually used as a driving device. In related technologies, the driving device of the suspension system is provided with two coaxially arranged and connected motor housings. In order to ensure the stable performance of the driving device, a sealed connection is required between the two motor housings. However, due to the vibration generated during the operation of the motor pump and the pressure of the high-pressure oil inside the motor housing, the sealing structure between the two motor housings is prone to aging and failure, resulting in reduced sealing performance after long-term use. Utility Model Content

[0003] The main purpose of the utility model is to provide an electronically controlled suspension drive device, a suspension system and a vehicle, aiming to improve the sealing performance of the electronically controlled suspension drive device.

[0004] To achieve the above-mentioned purpose, the electronically controlled suspension drive device proposed in the present invention comprises:

[0005] Two motor housings, the two motor housings are coaxially arranged and connected to each other, the motor housings are provided with a motor mounting cavity, and the motor housings are provided with a docking port facing the other motor housing;

[0006] A controller housing is provided on the sides of the two motor housings and is connected to the two motor housings to enclose the two motor housings to form a controller installation cavity;

[0007] The two motor housings are axially sealed and connected via a first sealing unit, which includes a metal piece sandwiched between the two motor housings. The controller housing and the motor housing are sealed and connected via a second sealing unit.

[0008] In one embodiment, the first sealing unit further includes a sealing gasket, and the sealing gaskets are provided on both surfaces of the metal member that are arranged opposite to each other, and the sealing gaskets are sandwiched between the metal member and the motor housing.

[0009] In one embodiment, the second sealing unit is formed by curing a sealant.

[0010] In one embodiment, the motor housing comprises:

[0011] A casing body, wherein the casing body is provided with the motor installation cavity with two ends extending therethrough, and an end of the casing body close to the other motor housing is opened as a docking port; and

[0012] A secondary housing, the secondary housing being arranged on the outside of the casing body and enclosing the casing body to form a splicing groove having a first notch and a second notch, the first notch being flush with the docking interface, the second notch being arranged on a side of the secondary housing away from the casing body, the splicing grooves of the two motor housings being docked through the first notch to form a mounting groove, and the two second notches forming a notch of the mounting groove;

[0013] The controller housing covers the notch of the installation slot to enclose the two motor housings to form the controller installation cavity. Parts of the first sealing unit are respectively sandwiched between the two casing bodies and between the two auxiliary housings.

[0014] In one embodiment, the first sealing unit includes a first sealing segment and two second sealing segments, the first sealing segment is clamped between the two casing bodies, the first sealing segment is arranged around a portion of the circumference of the docking interface, and has two ends spaced apart; the two second sealing segments are connected to the two ends of the first sealing segment in a one-to-one correspondence, and are respectively located on both sides of the first notch, and are clamped between the two sub-shells.

[0015] In one embodiment, the auxiliary housing is provided with a first connecting structure, and the controller housing is provided with a second connecting structure, and the first connecting structure and the second connecting structure are detachably connected.

[0016] In one embodiment, the first connection structure is provided in the controller installation cavity;

[0017] And / or, the first connecting structure is provided with a first connecting hole, the second connecting structure is provided with a second connecting hole, and the electronically controlled suspension drive device further includes a connecting member, which is passed through the connecting hole and the first connecting hole to connect the motor housing and the controller housing.

[0018] In one embodiment, a mounting structure is protruded from the outer wall of the motor housing, and the first sealing unit is provided with a connecting ear, which is clamped between the mounting structures of the two motor housings; the electronically controlled suspension drive device also includes a locking piece, which is passed through the connecting ear and the mounting structure to connect the two motor housings and the first sealing unit.

[0019] The utility model also provides a suspension system, which includes the aforementioned electronically controlled suspension drive device.

[0020] The utility model also provides a vehicle, comprising the above suspension system.

[0021] In the technical solution of the present utility model, the docking position of the two motor housings is sealed by a first sealing unit in the electronically controlled suspension drive device. Metal parts are provided in the first sealing unit, which makes the first sealing unit less susceptible to damage and aging, thereby improving the structural stability of the first sealing unit and the sealing strength between the two motor housings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 A structural diagram of an embodiment of an electronically controlled suspension drive device provided by the present utility model;

[0024] Figure 2 for Figure 1 Exploded view of the electronically controlled suspension drive unit;

[0025] Figure 3 A diagram showing the coordination structure of an embodiment of a motor housing and a second sealing unit in an electronically controlled suspension drive device provided by the present invention;

[0026] Figure 4 This is a structural diagram of an embodiment of the first sealing unit in the electronically controlled suspension drive device provided by the present utility model.

[0027] Description of Figure Numbers:

[0028] 100. Electronically controlled suspension drive device; 1. Motor housing; 11. Casing body; 111. Motor mounting cavity; 12. Sub-housing; 121. First side wall; 122. Second side wall; 123. Splicing groove; 124. First connecting structure; 13. Mounting structure; 2. Controller mounting housing; 3. First sealing unit; 31. First sealing section; 32. Second sealing section; 33. Connecting ear; 34. Connecting hole; 4. Second sealing unit; 5. Pump housing; 6. Connector.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] 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.

[0033] In the active suspension system of a vehicle, a motor pump is usually used as a driving device. In related technologies, the driving device of the suspension system is provided with two coaxially arranged and connected motor housings. In order to ensure the stable performance of the driving device, a sealed connection is required between the two motor housings. However, due to the vibration generated during the operation of the motor pump and the pressure of the high-pressure oil inside the motor housing, the sealing structure between the two motor housings is prone to aging and failure, resulting in reduced sealing performance after long-term use.

[0034] In view of the above problems, the present invention proposes an electronically controlled suspension driving device 100 applied to a suspension system.

[0035] See also Figures 1 to 3In one embodiment of the present utility model, the electronically controlled suspension drive device 100 includes two motor housings 1 and a controller housing 2. The two motor housings 1 are coaxially arranged and connected to each other. The motor housing 1 is provided with a motor installation cavity 111, and the motor housing 1 is provided with a docking port facing the other motor housing 1; the controller housing 2 is arranged on the side of the two motor housings 1 and is connected to the two motor housings 1 to enclose the two motor housings 1 to form a controller installation cavity; wherein, the two motor housings 1 are axially sealed and connected by a first sealing unit 3, the first sealing unit 3 includes a metal part clamped between the two motor housings 1, and the controller housing 2 and the motor housing 1 are sealed and connected by a second sealing unit 4.

[0036] The electronically controlled suspension drive device 100 proposed in this application can be used in a vehicle's suspension system to drive the suspension system's shock absorbers to adjust the oil filling state in the shock absorbers, thereby controlling the rise and fall of the vehicle chassis to adjust the "softness" and "hardness" of the chassis, thereby offsetting the vehicle's uncomfortable shaking and swaying. The electronically controlled suspension drive device 100 includes two sets of motor pumps, each set of motor pumps includes a hydraulic pump and a motor for driving the hydraulic pump. The electronically controlled suspension drive device 100 is also provided with a controller for controlling the operating state of the motor. The controller can be configured as a circuit board with integrated electrical components and / or devices, or can be configured as other structures; optionally, the controller includes a main control board and a power board.

[0037] The electronically controlled suspension drive device 100 is provided with two motor housings 1 that are coaxially arranged and interconnected, and a controller housing 2 connected to the two motor housings 1. The motor housing 1 is provided with a motor mounting cavity 111 for mounting the motor. The motor mounting cavity 111 is through-connected at both ends, one end of which forms a docking port that communicates with the motor mounting cavity 111 of the other motor housing 1, and the other end forms a mounting port for passing the motor output shaft or the pump shaft of the hydraulic pump. The pump housing 5 of the hydraulic pump is covered in the mounting port and connected to the motor housing 1. The pump housing 5 is the shell structure of the hydraulic pump and is used to mount the pump body of the hydraulic pump, for example, a gear pump or a piston pump. The pump housing 5 and the motor housing 1 can be connected by bolts or other connection structures, or can be integrally cast, which is not limited here. The controller housing 2 is arranged on the side of the two motor housings 1 and encloses the two motor housings 1 to form a controller mounting cavity for mounting the controller. Optionally, a sub-shell 12 can be provided on one side of the motor housing 1 as in the following embodiment, and the controller housing 2 can cover the sub-shell 12 to form a controller installation cavity. Alternatively, the controller housing 2 can be provided as a cover structure with an opening on one side, so that the opening of the cover structure is provided on the outer wall of the motor housing 1 to close the cover structure to form a controller installation cavity.

[0038] The two motor housings 1 are sealed by a first sealing unit 3, and the first sealing unit 3 includes a metal part. Optionally, the metal part can be set as a combination of one or at least two metal sealing gaskets such as a steel gasket, a copper gasket, an iron gasket and an aluminum gasket, and a rubber gasket or other sealing gasket can also be set on the surface of the metal part. Compared with the use of sealant for sealing connection, the structural strength of the first sealing unit 3 can be improved by setting the metal part. The first sealing unit 3 is not easy to age and damage and can be reused, so that the two motor housings 1 have better sealing performance, which can avoid the problem of oil leakage and also play a better dust-proof role. In addition, since the contact surfaces of the docking position of the two motor housings 1 are relatively large, and the operating space when the two motor housings 1 are spliced is relatively small, the first sealing unit 3 is used to seal the connection between the two motor housings 1, and there is no need to apply glue between the two motor housings 1, thereby improving the convenience of assembly.

[0039] Optionally, the first sealing unit 3 may be a closed-loop annular structure or an open-loop structure, and the shape of the first sealing unit 3 is set according to the shape of the docking position.

[0040] In an embodiment of the present application, the controller housing 2 and the motor housing 1 are sealed by a second sealing unit 4. The second sealing unit 4 can be at least one of a sealant, a sealing ring, and a sealing gasket. By setting the second sealing unit 4, the sealing performance of the controller installation cavity can be improved, dustproof effect can be played, and the performance stability of the controller can be ensured.

[0041] That is, in the embodiment of the present application, the docking position of the two motor housings 1 is sealed by the first sealing unit 3 in the electronically controlled suspension drive device 100. Metal parts are provided in the first sealing unit 3, so that the first sealing unit 3 is not easily damaged or aged, thereby improving the structural stability of the first sealing unit 3 and the sealing strength between the two motor housings 1.

[0042] In one embodiment, the first sealing unit 3 further includes a sealing gasket. The two surfaces of the metal piece that are arranged opposite to each other are provided with sealing gaskets, and the sealing gaskets are sandwiched between the metal piece and the motor housing 1 .

[0043] In this embodiment, the first sealing unit 3 also includes a sealing gasket arranged on the surface of the metal gasket. The sealing gasket can be made of rubber, silicone or other materials. Through the setting of the sealing gasket, the surface of the first sealing unit 3 has good elastic deformation ability, and can fit well with the motor housing 1 when it is abutted against the motor housing 1, avoiding the existence of a gap between the first sealing unit 3 and the motor housing 1, thereby improving the sealing performance.

[0044] In one embodiment, the second sealing unit 4 is formed by curing a sealant. It is understood that the seal between the controller housing 2 and the motor housing 1 is primarily intended to prevent external dust and moisture from entering the controller mounting cavity. The connection between the controller housing 2 and the motor housing 1 is not subject to excessive external forces, so the sealing performance requirements at this location are relatively low. Using a sealant for sealing and bonding can improve both the sealing performance and the connection strength between the controller housing 2 and the motor housing 1.

[0045] In one embodiment, the motor housing 1 includes a housing body 11 and a sub-housing 12. The housing body 11 is provided with a motor mounting cavity 111 with both ends through it, and the housing body 11 has an opening at one end close to the other motor housing 1 as a docking interface; the sub-housing 12 is arranged on the outside of the housing body 11, and is enclosed with the housing body 11 to form a splicing groove 123 having a first notch and a second notch, the first notch is flush with the docking interface, and the second notch is arranged on the side of the sub-housing 12 away from the housing body 11, the splicing grooves 123 of the two motor housings 1 are docked through the first notch to form a mounting groove, and the two second notches form the notches of the mounting groove; the controller housing 2 covers the notch of the mounting groove to enclose the two motor housings 1 to form a controller mounting cavity, and a portion of the first sealing unit 3 is respectively sandwiched between the two housing bodies 11 and the two sub-housings 12.

[0046] In this embodiment, the motor housing 1 includes a housing body 11 and a sub-housing 12, and the housing body 11 and the sub-housing 12 are integrally formed; the housing body 11 is a cylindrical structure with two ends through, and is provided with a motor installation cavity 111 for installing the motor. The sub-housing 12 is provided on the outer wall of the housing body 11, and the sub-housing 12 is generally an open-loop frame structure. The sub-housing 12 and part of the outer wall of the housing body 11 are enclosed to form a splicing groove 123. The side of the sub-housing 12 adjacent to the other motor housing 1 is provided with a first notch of the splicing groove 123, and the first notch is flush with the docking interface of the housing body 11; after the two motor housings 1 are spliced and combined, the splicing grooves 123 of the two motor housings 1 are connected to each other through the first notch to form an installation groove, and the second notches of the two splicing grooves 123 are combined to form a notch of the installation groove; the controller housing 2 covers the notch of the installation groove, thereby closing the installation groove to form a controller installation cavity.

[0047] The first sealing unit 3 includes a first sealing segment 31 sandwiched between the two housing bodies 11 and a second sealing segment 32 sandwiched between the two auxiliary housings 12. The first sealing segment 31 can be configured as a closed loop structure surrounding the docking interface, or it can be configured as an open loop structure, eliminating the need for a sealing segment at the intersection of the first notch and the docking interface. Two second sealing segments 32 are provided, one on either side of the first notch; this arrangement ensures a strong sealing connection between the two motor housings 1.

[0048] Optionally, the controller installation cavity includes a first installation space and a second installation space, and the controller housing 2 includes a main cover and a raised structure protruding from the main cover. At this time, the controller housing 2 is roughly a stepped structure, and a first installation space is formed between the main cover and the two motor housings 1. A second installation space connected to the first installation space is formed in the raised structure. The controller includes a main control board and a power board. The main control board is set in the first installation space, and the power board is set in the second installation space.

[0049] See also Figures 2 to 4 In one embodiment, the first sealing unit 3 includes a first sealing segment 31 and two second sealing segments 32. The first sealing segment 31 is clamped between the two casing bodies 11. The first sealing segment 31 is arranged around the partial circumference of the docking interface and has two ends spaced apart. The two second sealing segments 32 are connected to the two ends of the first sealing segment 31 in a one-to-one correspondence, and are respectively located on both sides of the first notch and clamped between the two sub-shells 12.

[0050] In this embodiment, the first sealing unit 3 includes a first sealing segment 31 sandwiched between the two housing bodies 11 and a second sealing segment 32 sandwiched between the two sub-housings 12, wherein the first sealing segment 31 is configured as an open-loop structure arranged along a portion of the circumference of the docking interface, with the two ends of the first sealing segment 31 spaced apart on either side of the first notch; the two second sealing segments 32 are located between the two sub-housings 12 and are respectively arranged on either side of the first notch, with one end of the second sealing segment 32 connected to one end of the first sealing segment 31 and the other end of the second sealing segment 32 extending toward the controller housing 2. This arrangement not only allows the two motor housings 1 to have better sealing connection performance, but also eliminates the need to set a sealing segment at the junction of the first notch and the docking interface, making the structure of the first sealing unit 3 simpler and easier to process, and reducing the material used in the first sealing unit 3.

[0051] See also Figure 3 In one embodiment, the auxiliary housing 12 is provided with a first connecting structure 124, and the controller housing 2 is provided with a second connecting structure (not shown), and the first connecting structure 124 and the second connecting structure are detachably connected.

[0052] When the controller housing 2 is covered on the auxiliary housing 12, the first connecting structure 124 and the second connecting structure are correspondingly arranged. The first connecting structure 124 and the second connecting structure can be connected by setting bolts or other connecting members 6 to pass through the first connecting structure 124 and the second connecting structure, or the first connecting structure 124 and the second connecting structure can be snap-fitted or plug-fitted. The first connecting structure 124 and the second connecting structure can be used to improve the connection strength between the motor housing 1 and the controller housing 2. At least two first connecting structures 124 spaced circumferentially can be set on the auxiliary housing 12, and a corresponding number of second connecting structures can be set on the controller housing 2. This improves the connection strength while making the controller housing 2 evenly stressed around the circumference, thereby improving the sealing between the controller housing 2 and the motor housing 1.

[0053] See also Figure 3 In one embodiment, the first connecting structure 124 is disposed inside the auxiliary housing 12, which can reduce the risk of damage to the first connecting structure 124, reduce the protruding structure of the electronically controlled suspension drive device 100, and reduce the interference between the electronically controlled suspension drive device 100 and the installation position.

[0054] In one embodiment, the first connecting structure 124 is provided with a first connecting hole 34, the second connecting structure is provided with a second connecting hole 34, and the electronically controlled suspension drive device 100 further includes a connecting member 6, which is passed through the connecting hole 34 and the first connecting hole 34 to connect the motor housing 1 and the controller housing 2.

[0055] Among them, the first connecting hole 34 can be set as a screw hole, the second connecting hole 34 can be set as a through hole, and the connecting member 6 can be set as a bolt. The bolt is passed through the second connecting hole 34 and inserted into the first connecting hole 34, and is threadedly connected to the first connecting hole 34, thereby connecting and fixing the controller housing 2 to the motor housing 1. The structure is simple and has a high connection strength, so that the controller housing 2 is pressed against the sub-housing 12, so that there is better sealing between the controller housing 2 and the motor housing 1.

[0056] See also Figure 3 In one embodiment, the sub-shell 12 includes two first side walls 121 and a second side wall 122 connected to the two first side walls 121. The two first side walls 121 are arranged opposite to each other and are respectively located on both sides of the first slot; the second side wall 122 is located at one end of the first side wall 121 away from the first slot and is respectively connected to the two first side walls 121. A splicing groove 123 is formed between the second side wall 122 and the two first side walls 121.

[0057] In this embodiment, the secondary housing 12 has an open-loop square frame structure. This allows for a relatively straight path for applying sealant to the secondary housing 12, reducing the difficulty and complexity of applying the sealant and improving its convenience, thereby increasing the assembly efficiency of the electronically controlled suspension actuator 100. Furthermore, the resulting controller mounting cavity has a relatively regular shape, facilitating controller installation without creating excessive excess space, thereby reducing the size of the electronically controlled suspension actuator 100.

[0058] See also Figure 3 and Figure 4 In one embodiment, a mounting structure 13 is protruded from the outer wall of the motor housing 1, and the first sealing unit 3 is provided with a connecting ear 33, which is clamped between the mounting structures 13 of the two motor housings 1; the electronically controlled suspension drive device 100 also includes a locking piece, which is passed through the connecting ear 33 and the mounting structure 13 to connect the two motor housings 1 and the first sealing unit 3.

[0059] In this embodiment, a protruding mounting structure 13 is provided on the exterior of the motor housing 1, with a mounting hole defined in the mounting structure 13. A connecting ear 33 is provided on the first sealing unit 3. The connecting ear 33 is sandwiched between the mounting structures 13 of the two motor housings 1 and has a corresponding connecting hole 34 defined therein, corresponding to the mounting hole. A locking member is inserted through the mounting holes of the two mounting structures 13 and the connecting holes 34 of the connecting ear 33, thereby connecting the two motor housings 1 to each other and clamping the first sealing unit 3. Multiple mounting structures 13 and connecting ears 33 may be provided to enhance connection strength and provide better sealing between the two motor housings 1.

[0060] This utility model also provides a suspension system comprising an electronically controlled suspension drive device 100 and a shock absorber. The specific structure of the electronically controlled suspension drive device 100 is similar to that of the aforementioned embodiments. The electronically controlled suspension drive device 100 drives the shock absorber via a motor pump to achieve a shock-absorbing effect for the vehicle. Because this suspension system utilizes all the technical solutions of all the aforementioned embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of these embodiments, and therefore, no further elaboration is required here.

[0061] The present utility model also proposes a vehicle, which includes a suspension system. The specific structure of the suspension system refers to the above-mentioned embodiments. Since this vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0062] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electronically controlled suspension drive device, characterized in that: include: Two motor housings, the two motor housings are coaxially arranged and connected to each other, the motor housings are provided with a motor mounting cavity, and the motor housings are provided with a docking port facing the other motor housing; A controller housing is provided on the sides of the two motor housings and is connected to the two motor housings to enclose the two motor housings to form a controller installation cavity; The two motor housings are axially sealed and connected via a first sealing unit, which includes a metal piece sandwiched between the two motor housings. The controller housing and the motor housing are sealed and connected via a second sealing unit.

2. The electronically controlled suspension drive device according to claim 1, wherein: The first sealing unit further includes a sealing gasket, which is provided on both surfaces of the metal member facing each other and is sandwiched between the metal member and the motor housing.

3. The electronically controlled suspension drive device according to claim 1, wherein: The second sealing unit is formed by curing a sealant.

4. The electronically controlled suspension drive device according to claim 1, wherein: The motor housing comprises: A casing body, wherein the casing body is provided with the motor installation cavity with two ends extending therethrough, and an end of the casing body close to the other motor housing is opened as a docking port; and A secondary housing, the secondary housing being arranged on the outside of the casing body and enclosing the casing body to form a splicing groove having a first notch and a second notch, the first notch being flush with the docking interface, the second notch being arranged on a side of the secondary housing away from the casing body, the splicing grooves of the two motor housings being docked through the first notch to form a mounting groove, and the two second notches forming a notch of the mounting groove; The controller housing covers the notch of the installation slot to enclose the two motor housings to form the controller installation cavity. Parts of the first sealing unit are respectively sandwiched between the two casing bodies and between the two auxiliary housings.

5. The electronically controlled suspension drive device according to claim 4, characterized in that: The first sealing unit includes a first sealing segment and two second sealing segments. The first sealing segment is clamped between the two casing bodies. The first sealing segment is arranged around a portion of the circumference of the docking interface and has two ends spaced apart. The two second sealing segments are connected to the two ends of the first sealing segment in a one-to-one correspondence, and are respectively located on both sides of the first notch and clamped between the two sub-shells.

6. The electronically controlled suspension driving device according to claim 4, wherein: The auxiliary housing is provided with a first connecting structure, and the controller housing is provided with a second connecting structure. The first connecting structure and the second connecting structure are detachably connected.

7. The electronically controlled suspension drive device according to claim 6, wherein: The first connecting structure is provided in the controller installation cavity; And / or, the first connecting structure is provided with a first connecting hole, the second connecting structure is provided with a second connecting hole, and the electronically controlled suspension drive device further includes a connecting member, which is passed through the connecting hole and the first connecting hole to connect the motor housing and the controller housing.

8. The electronically controlled suspension drive device according to any one of claims 1 to 7, characterized in that: The outer wall of the motor housing is provided with a mounting structure, and the first sealing unit is provided with a connecting ear, and the connecting ear is clamped between the two mounting structures of the motor housing; The electronically controlled suspension drive device further includes a locking piece, which is passed through the connecting ear and the mounting structure to connect the two motor housings and the first sealing unit.

9. A suspension system, characterized in that: The invention comprises the electronically controlled suspension drive device as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the suspension system of claim 9.

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