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A kind of magneto-rheological shock absorber with controllable stiffness for vehicle and its stiffness control method

A magneto-rheological shock absorber and magneto-rheological technology, applied in the direction of shock absorber, shock absorber-spring combination, spring/shock absorber functional characteristics, etc., can solve the problem of no active suspension to adjust the height of the vehicle body, etc. To achieve the effect of not being able to change the height of the vehicle body and improving the performance of the car

Active Publication Date: 2020-09-25
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the magneto-rheological semi-active suspension does not have the function of active suspension to adjust the height of the vehicle body

Method used

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  • A kind of magneto-rheological shock absorber with controllable stiffness for vehicle and its stiffness control method
  • A kind of magneto-rheological shock absorber with controllable stiffness for vehicle and its stiffness control method
  • A kind of magneto-rheological shock absorber with controllable stiffness for vehicle and its stiffness control method

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Such as figure 1 , 2 As shown, a magneto-rheological shock absorber with controllable stiffness for a vehicle disclosed in the present invention includes an outer cylinder 7 and an inner cylinder 13 disposed inside the outer cylinder 7. The outer cylinder 7 and the inner cylinder 13 are integrally cast, and the bottom passes through The hydraulic oil delivery channel 28 is connected. There are two layers of floating pistons between the outer wall of the inner cylinder 13 and the inner side of the outer cylinder 7. From bottom to top, there are respectively the third floating piston 14 and ...

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Abstract

The invention discloses an automobile-used rigidity adjustable magneto-rheological damper and a rigidity adjusting method. An inner tube is arranged inside an outer tube, two layers of floating pistons are arranged on the position between the outer side wall of the inner tube and the inner side of the outer tube, the floating pistons divide the space between the outer tube and the inner tube intothree cavities from down to up, the three cavities are a hydraulic oil chamber, a floating air chamber and an adjusting chamber correspondingly, a spring in the adjusting chamber sleeve the inner tube, an upper end of the spring is further in contact with a baffle, and the baffle is connected with the upper edge of the outer tube through a dustproof cover; a hydraulic control device is connected to the bottom of the hydraulic oil chamber; a layer of floating piston is arranged inside the inner tube and divides the inner tube into a compensation air chamber and a magneto-rheological fluid cavity from down to up; a sealing end cover at the top of the inner tube seals the inner tube; and a piston assembly is arranged in the magneto-rheological fluid cavity, the piston assembly comprises a piston body, and a magnetic exciting winding and a winding protective layer wind the piston body. According to the automobile-used rigidity adjustable magneto-rheological damper and the rigidity adjusting method, rigidity and damping are adjusted according to driving conditions in a self-applying mode, so that the driving smoothness and operational stability are improved.

Description

technical field [0001] The invention belongs to the field of automobile suspension, and in particular relates to a magneto-rheological shock absorber with controllable stiffness for a vehicle and a method for adjusting and controlling the stiffness. Background technique [0002] At present, traditional passive suspension shock absorbers are still widely used in domestic automobiles. The damping and spring stiffness of this passive suspension shock absorber are unchanged, and the stiffness and damping cannot be adjusted in real time according to the driving conditions of the car. Therefore, Can not play a very good damping effect. As a typical damping adjustable semi-active suspension system, the magnetorheological shock absorber has the characteristics of large damping adjustment range, fast response speed, and low energy consumption, and the damping control method of the magnetorheological semi-active suspension is simple , as long as the current passing through the excita...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F13/00F16F9/53B60G17/015B60G17/016
CPCB60G17/0155B60G17/016F16F9/535F16F13/007F16F2222/12F16F2222/126F16F2224/045F16F2228/066F16F2230/0005F16F2230/183F16F2238/026
Inventor 黄晨张智宇陈龙蔡英凤袁朝春
Owner JIANGSU UNIV
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