Automobile collision buffering device based on magneto-rheological technology and buffering energy absorbing method

Abstract

The invention discloses an automobile collision buffering device based on a magneto-rheological technology. The automobile collision buffering device based on the magneto-rheological technology comprises a buffering shell and a driving system; an automobile bumper is movably connected to the left side of the buffering shell; a square-hole wall is fixedly connected to the internal wall of the buffering shell; and an airtight groove is formed in the square-hole wall. The invention relates to the technical field of automobile safety protection. According to the automobile collision buffering device based on the magneto-rheological technology and a buffering energy absorbing method, as a square-hole frame is driven by automobile collision to move to the right side so that an airtight plug slides in the airtight groove and extrudes a buffering spring, partial automobile collision impact energy can be absorbed; under cooperation of an electromagnetic coil, a driving power supply and a magneto-rheological fluid column, the magneto-rheological fluid column shows high viscosity and low liquidity, absorbs most automobile collision impact energy, possesses good buffering and energy absorbingcharacteristics, is uneasy to deform during collisions and has a required safety effect; and moreover, the magneto-rheological fluid column which is deformed after the collision does not need to be changed so that the service life of the magneto-rheological fluid column is long.

Description

technical field [0001] The invention relates to the technical field of automobile safety protection, in particular to an automobile collision buffer device and a buffer energy-absorbing method based on magneto-rheological technology. Background technique [0002] Vehicle safety can be divided into two aspects: active safety and passive safety. Active safety is to control the car as freely as possible. Whether it is braking and accelerating in a straight line or turning left and right, it should be as smooth as possible, so as not to deviate from the established driving route, and not affect the driver's vision and comfort. Such a car, of course, has a relatively high ability to avoid accidents, especially in the case of emergencies to ensure car safety. Passive safety refers to the protection of the occupants in the car after an accident. Today, the concept of this protection extends to all people and even objects inside and outside the car. Since the international automo...

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Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a car collision buffer device and a buffer energy absorption method based on magneto-rheological technology, which solves the problem of Collision buffer device, non-metallic materials have poor cushioning and energy absorption characteristics, and are easily deformed during collisions. The foam filler needs to be replaced after collision deformation

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