A novel magneto-rheological shock absorber and vehicle ride comfort control method

A magnetorheological shock absorber and control method technology, applied in the direction of shock absorbers, springs/shock absorbers, chemical instruments and methods, etc., can solve the problem of only applicable to specific working conditions, insufficient consideration, and poor shock absorption performance It can reduce the impact of damping force, prevent the deterioration or degradation of the magnetorheological effect, and improve the ride comfort and control stability.
CN112747074BActive Publication Date: 2022-04-01WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2022-04-01

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Abstract

The invention discloses a novel magneto-rheological shock absorber and a vehicle ride comfort control method, comprising a working cylinder, a piston, a damper and a magneto-rheological fluid. The working cylinder is provided with an adjacent piston cavity and a motor cavity , the piston includes a piston head and a piston rod, the piston head is arranged in the piston cavity, a plurality of first bypass holes are distributed on the piston head, the bottom of the piston rod is fixed to the piston head, and the flow stopper is sleeved on the piston rod and can As the piston moves up and down, there is a transmission mechanism in the motor cavity that can drive the flow baffle to rotate relative to the piston. The bypass hole contains at least one second bypass hole, and the transmission mechanism drives the damper to rotate relative to the piston, which can change the number of aligned first bypass holes and second bypass holes. The magnetorheological fluid is arranged on the piston In the cavity, improve the ride comfort of the vehicle under different load conditions and different road conditions.
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Description

technical field

[0001] The invention relates to the technical field of automobile NVH, in particular to a novel magneto-rheological shock absorber and a vehicle ride comfort control method. Background technique

[0002] When the car is running, the suspension system vibrates due to the excitation of the road surface. In order to improve the ride comfort of the car, a shock absorber is installed in the suspension in parallel with the elastic element. At present, automobile shock absorbers are divided into passive shock absorbers, active shock absorbers and semi-active shock absorbers. Passive shock absorbers are difficult to adapt to different roads and usage conditions due to non-adjustable parameters such as stiffness and damping. Although the active shock absorber can adapt to different roads and usage conditions, its device is complicated, the technical requirements are high, and the price is high. Therefore, the semi-active shock absorber with relatively simple manufac...

Claims

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