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Magnetorheological damper for automotive suspension

A magnetorheological damper, automobile suspension technology, applied in the direction of suspension, elastic suspension, vehicle parts, etc., can solve the problems of fixed performance and inability to adjust the automobile suspension, so as to improve the handling stability and reliability. , The effect of not easy to corrode and fail

Active Publication Date: 2013-01-23
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a magneto-rheological damper with reasonable design, simple structure and adjustable damping performance in view of the shortcomings of the existing automobile suspension that the performance is fixed and cannot be adjusted accordingly with changes in driving road conditions device

Method used

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  • Magnetorheological damper for automotive suspension
  • Magnetorheological damper for automotive suspension
  • Magnetorheological damper for automotive suspension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 The shown embodiment proposes a magneto-rheological damper for automobile suspension, including a single rod hydraulic cylinder, a dust cover 1, an upper connector 2, a lower connector 3, a free piston 4 and a one-way inflation valve 5, There is a magnetorheological fluid 6 in the cavity of the single-rod hydraulic cylinder, and the single-rod hydraulic cylinder includes a cylinder body 7, a piston 8 disposed inside the cylinder body, and a piston rod 9 disposed on the piston. End caps are provided, and the end caps are provided with two upper end caps 10 and lower end caps 11 respectively, which are installed on both ends of the cylinder body 7 respectively, and the piston rod 9 protrudes outside the cylinder body 7 through the upper end cap 10 The middle part of the piston 8 is wound with an excitation coil 12, the piston 8 and the inner wall of the cylinder body 7 are provided with a gap for the magneto-rheological fluid 6 to flow back and forth in t...

Embodiment 2

[0042] as attached Figure 4 As shown, as another embodiment of the present invention, the difference from the first embodiment lies in that a coil spring 23 is provided between the free piston 4 and the lower end cover 11 in the volume compensation chamber 14 to provide restoring force.

Embodiment 3

[0044] As shown in the drawings, as another embodiment of the present invention, the difference from the first embodiment is that the replaced volume compensation chamber 14 is not filled with high-pressure gas, and a one-way inflation valve is not installed inside the lower end cover 11. 5. A coil spring 23 is used between the free piston 4 and the lower end cover 11 to provide a restoring force, and an air hole 24 is opened on the lower end cover 11 .

[0045] In this embodiment, a magneto-rheological damper for automobile suspension is respectively connected to the frame and axle of the automobile through the upper and lower connectors, and is connected in parallel with the suspension spring, which can achieve the following beneficial effects: the magneto-rheological damper for automobile suspension The rheological damper has the advantages of simple structure, reliable performance, small space occupation, rapid response, and large damping force. The dynamic characteristics...

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Abstract

The invention discloses a magnetorheological damper for an automotive suspension. The magnetorheological damper is characterized by comprising a single-rod hydraulic cylinder, a dustproof cover, connectors, a free piston and a one-way inflation valve, wherein magnetorheological fluid is filled in an inner cavity of the single-rod hydraulic cylinder; an excitation coil is wound in the middle of the piston; a gap is formed between the piston and an inner wall of the cylinder body, so that the magnetorheological fluid returns between two cavities through the gap; a wire hole is formed on a central axis of the piston and the piston rod; a wire is arranged in the wire hole and is connected with the excitation coil; the one-way inflation valve is arranged on the inner side of an end cover of a volume compensation cavity; an air vent is formed on the end cover; the dustproof cover is arranged at one end of the single-rod hydraulic cylinder; the output end of the piston rod is arranged in the dustproof cover; and the connectors are arranged at the ends of the dustproof cover and the cylinder body. The upper and lower connectors are respectively connected to the frame and an axle of an automobile and are connected in parallel with a suspension spring, and the magnetorheological damper is reasonable in design, simple in structure and adjustable in damping performance.

Description

technical field [0001] The invention relates to an energy consumption vibration reduction device, in particular to a magnetorheological damper, in particular to a magnetorheological damper device for automobile suspension. Background technique [0002] Automobile suspension is the general term for all transmission devices between the body and the axle. The vertical reaction force, longitudinal force and lateral reaction force acting on the wheel by the road surface, as well as the moments generated by these forces, are transmitted to the frame through the suspension. or load-bearing body. The function of the suspension is to transmit these forces and moments while easing the impact load transmitted to the frame or body from uneven roads, suppressing the vibration of the body, and improving vehicle ride comfort (riding comfort) and safety (operating stability). Reduce the discomfort of the passengers and the damage of the parts on the vehicle caused by the dynamic load. The...

Claims

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Application Information

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IPC IPC(8): F16F9/53B60G17/08
Inventor 涂奉臣贺才春宁响亮侯彬彬
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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