Fully active suspension motor pump

Abstract

This utility model relates to a fully active suspension motor pump, belonging to the field of suspension motor pumps. This technical solution adopts a five-in-one structure of two motors, two pump heads, and one controller, significantly reducing the overall size and space occupied, simplifying the installation process in vehicle layout, and reducing the complexity of pipeline and wiring harness connections. Simultaneously, the pump head and motor adopt a 4×90° installation connection method, achieving stable pump head assembly while allowing flexible adjustment of the direction and position of the inlet and outlet ports around the motor shaft center according to the vehicle's pipeline requirements, significantly improving adaptability. Furthermore, suspension mounting holes are provided on the pump head, and considering the potential needs of existing OEMs, the number of suspension mounting holes has been increased from two to four, providing more space for vehicle suspension selection and solution design, reducing layout limitations. In this way, not only is the product platform level improved, but the number of dedicated molds is reduced, the development cycle is shortened, and development and manufacturing costs are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of suspension motor pump technology, and in particular to a fully active suspension motor pump. Background Technology

[0002] The suspension motor pump is a core component of an automotive active suspension system. Its primary function is to drive the suspension system's shock absorbers, enabling Z-axis adjustment of wheel position and thus providing multi-dimensional performance improvements to the vehicle. It achieves the "Flying Carpet" effect, effectively counteracting vibrations from uneven road surfaces and significantly optimizing driving comfort. Simultaneously, through active control of vehicle posture, it achieves zero body roll during steering, zero nose-dive during braking, and zero pitch during acceleration, greatly enhancing vehicle handling stability and driving safety. Furthermore, it possesses excellent adaptability to various road conditions, working in conjunction with road preview technology. By predicting road conditions in advance, the system maximizes the performance advantages of the active suspension, flexibly adapting to different complex driving scenarios.

[0003] The existing suspension motor pump adopts an integrated structure design of electronic control, motor and pump head. The controller and pump head are respectively installed at both ends of the motor. The motor and pump head are arranged coaxially, and an oil drain hole is designed in the middle of the shaft. At the same time, a one-way valve structure is integrated on the second housing to lead the drained oil back to the low-pressure oil port to complete the oil drain circuit.

[0004] However, the existing technical solutions have obvious shortcomings: First, the pump head is directly installed on the housing with a fixed installation direction, which makes it impossible to adjust the position of the oil inlet and outlet according to the actual layout requirements of the vehicle's pipeline, resulting in poor adaptability to different vehicle models; Second, the suspension mounting holes are set on the outer side of the housing boundary. This design not only occupies more vehicle installation space, but also significantly increases the difficulty of arranging the suspension motor pump on the vehicle, which is not conducive to the compact design of the vehicle space. Summary of the Invention

[0005] The purpose of this invention is to provide a fully active suspension motor pump to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fully active suspension motor pump, comprising: Two adjacent permanent magnet synchronous motors; A controller mounted on the same side of the two permanent magnet synchronous motors; and Two pump heads are respectively installed on the opposite sides of the two permanent magnet synchronous motors; Along the central axis of the permanent magnet synchronous motor, the pump head is connected to the housing of the permanent magnet synchronous motor in a 4×90° installation manner, which is used to adjust the position of the oil inlet and outlet on the pump head; the pump head is provided with multiple suspension mounting holes for connecting to the vehicle subframe or the whole vehicle through suspension.

[0007] In some embodiments, the pump head includes: The pump body, which is connected to the housing of the permanent magnet synchronous motor in a 4×90° mounting configuration, has four suspension mounting holes; and Pump cover, which is mounted on the pump body.

[0008] In some embodiments, four sets of pump body mounting holes are provided on the housing of the permanent magnet synchronous motor and on the pump body, and each set of pump body mounting holes is detachably connected by bolts. The four pump mounting holes on the pump body can be rotated 90°, 180°, 270°, or 360° to correspond to the four pump mounting holes on the housing of the permanent magnet synchronous motor.

[0009] In some embodiments, the pump cover and the pump body are provided with four sets of pump cover fixing holes, and each set of pump cover fixing holes is detachably connected by bolts.

[0010] In some embodiments, the pump body and the housing of the permanent magnet synchronous motor are clearance-fitted and sealed by a sealing ring.

[0011] In some embodiments, the pump body and the pump cover are clearance-fitted and sealed by a sealing ring.

[0012] In some embodiments, the controller and the housings of the two permanent magnet synchronous motors are in contact and sealed by a sealing ring or sealant.

[0013] In some implementations, the controller includes at least a driver board and a power board PCB, wherein the PCB is an integrated single board or divided into multiple boards.

[0014] The beneficial effects of the technical solution provided by this utility model include at least the following: This technical solution adopts a five-in-one structure of two motors, two pump heads, and one controller, significantly reducing the overall size and space occupied, simplifying the installation process in vehicle layout, and reducing the complexity of pipeline and wiring harness connections. Simultaneously, the pump head and motor use a 4×90° installation connection method, ensuring stable pump head assembly while allowing flexible adjustment of the direction and position of the oil inlet and outlet around the motor shaft center according to the vehicle's pipeline requirements, significantly improving adaptability. Furthermore, mounting holes are provided on the pump head, and considering the potential needs of existing OEMs, the number of mounting holes has been increased from two to four, providing more space for vehicle mounting selection and solution design, reducing layout limitations. In this way, not only is the product platform level improved, the number of dedicated molds reduced, and the development cycle shortened, but assembly convenience is also optimized, effectively reducing development and manufacturing costs, balancing practicality and economy. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] Figure 1 A side view of a fully active suspension motor pump provided in an exemplary embodiment of the present invention is shown.

[0017] Figure 2 A side view of a fully active suspension motor pump provided in an exemplary embodiment of the present invention is shown.

[0018] In the diagram: 1. Permanent magnet synchronous motor; 2. Controller; 3. Pump head; 31. Pump body; 32. Pump cover; 4. Suspension mounting hole; 5. Pump body mounting hole; 6. Pump cover fixing hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This diagram shows an axle-side view of a fully active suspension motor pump provided in an exemplary embodiment of the present invention. Figure 2 The illustration shows a side view of a fully active suspension motor pump provided in an exemplary embodiment of the present invention. The fully active suspension motor pump includes: two adjacent permanent magnet synchronous motors 1; a controller 2 mounted on the same side of the two permanent magnet synchronous motors 1; and two pump heads 3 respectively mounted on opposite sides of the two permanent magnet synchronous motors 1. The pump heads 3 are connected to the housing of the permanent magnet synchronous motors 1 in a 4×90° mounting manner along the central axis of the permanent magnet synchronous motors 1, for adjusting the position of the oil inlet and outlet ports on the pump heads 3. The pump heads 3 are provided with a plurality of suspension mounting holes 4 for connecting to the vehicle subframe or the whole vehicle via suspension.

[0023] In this embodiment, two adjacent permanent magnet synchronous motors 1 provide dual power sources. The controller 2 is centrally installed on the same side of the two motors, which reduces the overall space occupied, simplifies wiring connections, and efficiently converts high-voltage DC power into three-phase AC power, enabling centralized control of the two motors. Two pump heads 3 are located on opposite sides of the two motors, allowing them to independently receive the mechanical energy transmitted by the motors and convert it into hydraulic energy, avoiding mutual interference during operation and ensuring hydraulic output efficiency. Ultimately, this drives the shock absorber piston to move up and down to adjust the vehicle's attitude in real time. In addition, the pump head 3 is installed in a 4×90° configuration along the motor's central axis, allowing for flexible adjustment of the inlet and outlet positions to adapt to different vehicle piping layout requirements. Multiple mounting holes 4 on the pump head 3 can be securely connected to the vehicle subframe or body via mounting components, ensuring the stability of the motor pump during operation and buffering vibrations, thus balancing installation flexibility and operational reliability.

[0024] In detail, the pump head 3 includes: a pump body 31, which is connected to the housing of the permanent magnet synchronous motor 1 in a 4×90° mounting manner, and is provided with four suspension mounting holes 4; and a pump cover 32, which is mounted on the pump body 31.

[0025] More specifically, the housing of the permanent magnet synchronous motor 1 and the pump body 31 are provided with four sets of pump body mounting holes 5, and each set of pump body mounting holes 5 is detachably connected by bolts; wherein, the four pump body mounting holes 5 on the pump body 31 can correspond to the four pump body mounting holes 5 on the housing of the permanent magnet synchronous motor 1 after rotating 90°, 180°, 270° or 360°.

[0026] Specifically, four sets of pump cover fixing holes 6 are provided on the pump cover 32 and the pump body 31, and each set of pump cover fixing holes 6 is detachably connected by bolts.

[0027] In this embodiment, the four suspension mounting holes 4 on the pump body 31 provide multiple position options for the connection between the pump head 3 and the vehicle subframe, improving the installation adaptability of the motor pump on the vehicle; while the pump cover 32 and the pump body 31 are detachably connected by four sets of corresponding pump cover fixing holes 6 and bolts, which facilitates later disassembly and maintenance.

[0028] More specifically, the pump body 31 and the housing of the permanent magnet synchronous motor 1 have a clearance fit and are sealed by a sealing ring. The pump body 31 and the pump cover 32 have a clearance fit and are sealed by a sealing ring. The controller 2 and the housings of the two permanent magnet synchronous motors 1 have a contact fit and are sealed by a sealing ring or sealant.

[0029] In this embodiment, the seal between the pump body and the motor housing prevents hydraulic oil leakage and ensures power transmission efficiency; the seal between the pump body and the pump cover maintains stable pressure in the internal hydraulic chamber of the pump head and prevents pressure loss from affecting the shock absorber's driving effect; the seal between the controller and the motor housing isolates dust and moisture and protects the electrical control components.

[0030] As a supplementary explanation, the controller 2 includes at least a drive board and a power board PCB, which may be an integrated single board or multiple boards. The pump head 3 is generally a gear pump or a plunger pump, with gear pumps typically using involute or cycloidal gears. The pump head 3 is equipped with sensors to monitor the internal pressure and temperature of the pump chamber, allowing for real-time monitoring of the internal pressure. The stator of the permanent magnet synchronous motor 1 has a rigid, transition, or clearance fit with the motor housing, and the stator and motor housing are press-fitted together using a heat-shrink fitting or tooling fixtures. The rotor of the permanent magnet synchronous motor 1 is generally pressed into the motor housing via bearings and drives the pump head 3 through the motor shaft at the center of the rotor.

[0031] In summary, this technical solution adopts a five-in-one structure of two motors, two pump heads, and one controller, significantly reducing the overall size and space occupied, simplifying the installation process in the vehicle layout, and reducing the complexity of pipeline and wiring harness connections. Simultaneously, the pump head and motor use a 4×90° installation connection method, ensuring stable pump head assembly while allowing flexible adjustment of the direction and position of the oil inlet and outlet around the motor shaft center according to the vehicle's pipeline requirements, significantly improving adaptability. Furthermore, mounting holes are provided on the pump head, and considering the potential needs of existing OEMs, the number of mounting holes has been increased from two to four, providing more space for vehicle mounting selection and solution design, reducing layout limitations. This not only improves the product platform level, reduces the number of dedicated molds, and shortens the development cycle, but also optimizes assembly convenience, effectively reducing development and manufacturing costs, and balancing practicality and economy.

[0032] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fully active suspension motor pump characterized by, include: Two adjacent permanent magnet synchronous motors (1); A controller (2) is installed on the same side of the two permanent magnet synchronous motors (1); and Two pump heads (3) are respectively installed on the opposite sides of the two permanent magnet synchronous motors (1); Along the central axis of the permanent magnet synchronous motor (1), the pump head (3) is connected to the housing of the permanent magnet synchronous motor (1) in a 4×90° installation manner, which is used to adjust the position of the oil inlet and outlet on the pump head (3); the pump head (3) is provided with multiple suspension mounting holes (4), which are used to connect to the vehicle subframe or the whole vehicle through suspension.

2. The fully active suspension motor pump of claim 1, wherein, The pump head (3) includes: The pump body (31), which is connected to the housing of the permanent magnet synchronous motor (1) in a 4×90° mounting configuration, has four suspension mounting holes (4) on it; and Pump cover (32), which is mounted on the pump body (31).

3. The fully active suspension motor pump according to claim 2, characterized in that, The permanent magnet synchronous motor (1) and the pump body (31) are provided with four sets of pump body mounting holes (5), and each set of pump body mounting holes (5) is detachably connected by bolts. The four pump mounting holes (5) on the pump body (31) can correspond to the four pump mounting holes (5) on the housing of the permanent magnet synchronous motor (1) after rotating 90°, 180°, 270° or 360°.

4. The fully active suspension motor pump of claim 2, wherein, The pump cover (32) and the pump body (31) are provided with four sets of pump cover fixing holes (6), and each set of pump cover fixing holes (6) is detachably connected by bolts.

5. The fully active suspension motor pump of claim 2, wherein, The pump body (31) and the housing of the permanent magnet synchronous motor (1) are fitted with a clearance and sealed by a sealing ring.

6. The fully active suspension motor pump according to claim 2, characterized in that, The pump body (31) and the pump cover (32) are fitted with a clearance and sealed by a sealing ring.

7. The fully active suspension motor pump of claim 1, wherein, The controller (2) is in contact with the housings of the two permanent magnet synchronous motors (1) and is sealed by a sealing ring or sealant.

8. The fully active suspension motor pump according to claim 1, characterized in that, The controller (2) includes at least a driver board and a power board PCB, wherein the PCB is an integrated board or divided into multiple boards.

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