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 performa

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

Example Embodiment

[0034] Example one

[0035] Such as figure 1 The illustrated embodiment proposes a magnetorheological 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. The single rod hydraulic cylinder has a magnetorheological fluid 6 in its inner cavity. The single rod hydraulic cylinder includes a cylinder body 7, a piston 8 arranged inside the cylinder body, and a piston rod 9 arranged on the piston. An end cover is provided. The end cover is provided with two upper end cover 10 and lower end cover 11, respectively, which are respectively installed at both ends of the cylinder body 7. The piston rod 9 passes through the upper end cover 10 and extends out of the cylinder body 7. The middle of the piston 8 is wound with an excitation coil 12, the piston 8 and the inner wall of the cylinder 7 are provided with a gap for the magnetorheological fluid 6 to flow back...

Example Embodiment

[0041] Example two

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

Example Embodiment

[0043] Example three

[0044] As shown in the drawings, as another embodiment of the present invention, the difference from the first embodiment is that the replacement volume compensation cavity 14 is not filled with high-pressure gas, and the 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 restoring force, and a vent hole 24 is opened on the lower end cover 11.

[0045] The magnetorheological damper for automobile suspension in this embodiment is connected to the frame and axle of the automobile through the upper and lower connecting heads, and is connected in parallel with the suspension spring to achieve the following beneficial effects: The rheological damper is simple in structure, reliable in performance, small in space, quick in response, and provides large damping force. It can be used in the front and rear suspensions of various automobiles. It can change th...

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PUM

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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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