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Magnetorheological suspensions damping device for automobile suspension system

A magnetorheological fluid, automotive suspension technology, applied in suspension, elastic suspension, vehicle components and other directions, can solve the problem of high power consumption, reduce the heating of the magnetic circuit, increase the adjustment range, and achieve a simple structure. Effect

Inactive Publication Date: 2008-02-27
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic field generators they use are all excitation coils, and apply current in one direction. When medium damping force is required, medium current intensity is required, and the car suspension works for a long time under medium damping conditions, so Large power consumption; in addition, the US patent US5277281 "MAGNETORHEOLOGICAL FLUID DAMPERS" (magneto-rheological fluid damper) uses a floating piston compensator. During the compression process of the piston rod, due to the reduction in the volume of the compensation space, the damper The damping force increases with the increase of the compression stroke

Method used

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  • Magnetorheological suspensions damping device for automobile suspension system
  • Magnetorheological suspensions damping device for automobile suspension system
  • Magnetorheological suspensions damping device for automobile suspension system

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Embodiment Construction

[0023] Further describe the present invention below with reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4:

[0024] Referring to Fig. 1, the magneto-rheological damping control device of the automobile suspension system involved in the present invention is a single-tube damper, the lower end of the working cylinder 9 is welded with a bottom cover 31, and the upper end of the working cylinder 9 is installed with a rubber sealing sleeve with guiding function 3. The guide sleeve 4 and the piston assembly 19 are installed in the working cylinder 9. The piston assembly 19 divides the working cylinder 9 into upper and lower chambers, and a damping channel 18 is left between the piston assembly and the working cylinder wall. A compensator is arranged at the bottom of the working cylinder 9 .

[0025] 1 and 2, the piston assembly 19 includes a hollow piston rod 2, a guide and a piston-type magnetic field generator, the guide and the piston-type magnetic field generator are connected coa...

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Abstract

The invention involving a magnetorheological fluid damping device for automobile suspension system.The magnetic field generator of this damping device consists of permanent magnet and electromagnetic coil.On the top of the damping device,there are guide apparatus and damping regulator,the function of which is that to ensure the damping channel is uniform annular duct and to meet the high-damp requirement in the restoration process and low-damp requirement in the compression process of damper seperately.The current in the electromagnetic coil designs of bi-directional and this controls the magnetic field intersity of the damping channel,decreases the excitation current of the electromagnetic coil,reduces energy consumption and decreases damper fever.On the non-controlling conditions,this damping device has the equivalent characteristics of the traditional shock absorber and can instead the passive shock absorber,after equiping corresponding current controller,this device can regulate the damping characteristics of suspension system,which improves the automobile driving safety and ride comfort.

Description

technical field [0001] The invention belongs to the new technical field of automobile suspension, and in particular relates to a magnetorheological fluid damping device for an automobile suspension system. Background technique [0002] The main function of automobile suspension is to improve the safety (handling stability) and smoothness (ride comfort) of the automobile, and reduce the damage to parts and goods caused by dynamic load. At present, the traditional suspension system composed of elastic elements and damping elements is commonly used in automobiles. This suspension system is designed for specific road conditions and vehicle operating conditions. The vibration generated by the road surface, while the static and dynamic characteristics of the system are fixed. It can only guarantee the vibration reduction effect under the design conditions. Even if the optimal design method is adopted to improve the mechanical structure, its vibration reduction performance is limi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53B60G17/08
CPCF16F9/535
Inventor 廖昌荣余淼张红辉陈伟民黄尚廉
Owner CHONGQING UNIV
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