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Inverted single-cylinder type cylindrical linear motor active suspension actuator

A linear motor, active suspension technology, applied in suspension, elastic suspension, shock absorber, etc., can solve the problems of high cost of active suspension, insufficient safety and reliability, large energy loss, etc., and improve the stability of vehicle operation. stability and ride stability, improved suspension performance, work efficiency results

Pending Publication Date: 2021-06-15
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an active suspension of an inverted single-cylinder linear motor, and its purpose is to solve the problems of high cost, large energy loss, complex structure and insufficient safety and reliability of the existing active suspension.

Method used

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  • Inverted single-cylinder type cylindrical linear motor active suspension actuator
  • Inverted single-cylinder type cylindrical linear motor active suspension actuator
  • Inverted single-cylinder type cylindrical linear motor active suspension actuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Embodiment 1: This embodiment is a structure when the floating piston 12 is not provided, and when the primary component and the secondary component are relatively moved, the coil spring 3 is compressed, at this time, the oil in the upper cavity (13-1) is Compression, when the relative motion speed is small, the pressure is not enough to open the valve port without the interchange of the oil, when the relative speed is large, the valve opening opens the oil (13-1) and the lower chamber (13-2) oil. The liquid interchanges, relies on the damping force flowing through the valve port;

Embodiment 2

[0081] Example 2 (This working condition is the impact of the suspension, can be buffered with its own damping, at which time the actuator can be used to feed power. It can rely on the gas, rely on the oil): This embodiment In order to set the structure of the floating piston 12, the coil spring 3 is compressed, and the oil fluid in the high pressure gas and the upper cavity (13-1) in the gas chamber (11-1) is compressed, and when the relative movement is relatively When the hour, the high pressure gas was first compressed, and the pressure was not opened at this time, and the oil exchange was not turned on; when the relative speed was large, the pressure of the high pressure gas reached the setting maximum, the buffer effect Restricted, and then the valve opening is opened, and the oil fluid of the upper cavity (13-1) and the lower chamber (13-2) is interchanged, and the oil flows from the oil flow through the damping force of the valve port. The cylindrical linear motor assembly...

Embodiment 3

[0082] Example 3 (This working condition is a larger impact of the suspension, the linear motor provides an active force): When the relative speed is larger than the speed of the first embodiment, the coil spring 3 is compressed, due to the upper cavity (13- 1) and the oil fluid itself of the lower chamber (13-2) is not sufficient to quickly provide the damping force, perform efficient buffering, at which time the cylindrical linear motor assembly needs to pass a certain value of current I (need according to actual In the impact condition, the specific value is calculated by the controller of the vehicle), relying on the magnetic field generating electromagnetic force, providing an active force I, speeding the compression speed, improving the buffer capability, but no induction current is generated at this time. Thereafter, the coil spring 3 is largely compressed, and the interchangeable damping force of the extended rebound, the upper cavity (13-1) and the lower cavity (13-2) is ...

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PUM

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Abstract

The invention relates to an inverted single-cylinder type cylindrical linear motor active suspension. The inverted single-cylinder type cylindrical linear motor active suspension actuator comprises a cylindrical linear motor type actuator assembly, an inverted single-cylinder type damper assembly and a spiral spring assembly. The cylindrical linear motor type actuator assembly comprises a primary assembly with a through hole in a specific shape and a secondary assembly installed in association with the primary assembly, the primary assembly comprises a winding iron core and a primary outer cylinder, and the primary iron core is of a circular ring structure; and the secondary assembly comprises permanent magnets and magnetic conducting rings, the permanent magnets and the magnetic conducting rings are sequentially and alternately installed on the side face of a damper outer cylinder, the magnetic pole direction of each permanent magnet is parallel to the central axis of a damper, and the permanent magnets are arranged in the mode that polarities are opposite. According to the inverted single-cylinder type cylindrical linear motor active suspension, the mounting space is saved, the structural complexity is reduced, the control force is generated for active control, and the suspension performance is improved; and the Fail-Safe (failure protection) characteristic is realized, the basic mechanical structure is reserved, the suspension can still work normally after a motor fails, and the operation stability and the running stability of a vehicle are improved.

Description

Technical field [0001] The present invention belongs to the technical field of automobile suspension system, and more particularly to a cylindrical linear motor type active suspension actuator and an inverted single-cylinder damper. Background technique [0002] With the development of society and the improvement of people's living standards, people's requirements for car comfort and safety are increasing. The traditional automobile suspension system is limited to structural characteristics, which can only be guaranteed to achieve optimization in a specific speed and road state. People have always wished the rigidity of the suspension, the damping coefficient of the damper and the height of the body energy change as the vehicle load, driving speed, and the road conditions such that the suspension can always be near the best working state, and to satisfy The travel of the car is smooth, and the need for steadyness. However, many structures currently use the traditional hydraulic, ...

Claims

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Application Information

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IPC IPC(8): F16F9/06F16F9/348F16F9/36F16F9/38F16F9/512F16F13/00F16F13/26F16F15/02F16F15/023F16F15/04F16F15/06B60G17/015
CPCB60G17/015F16F9/067F16F9/3482F16F9/369F16F9/38F16F9/5123F16F13/007F16F13/264F16F15/005F16F15/022F16F15/0232F16F15/046F16F15/06F16F2222/12F16F2222/126F16F2230/18F16F2238/026
Inventor 孙凤汪思卓张晓友赵海宁李强徐方超金俊杰郭辉
Owner SHENYANG POLYTECHNIC UNIV