Automobile front end rigidity self-adaptive system and control method

Abstract

The invention discloses an automobile front end rigidity self-adaptive system and a control method, and relates to the technical field of automobile safety. The problem that passengers or pedestrians are heavily hurt when automobiles collide with each other is solved. The automobile front end rigidity self-adaptive system comprises an air bag, an inflation valve set, a deflation valve set, an inflation pump set, a detecting unit, a logic unit, a storage and calculation unit and a control unit, wherein the air bag is arranged between an anti-collision beam and a bumper cover, the inflation valve set and the deflation valve set are communicated with the air bag, the inflation pump set is communicated with the inflation valve set, the detecting unit detects the pressure peak, the pressure time duration and the automobile speed, the logic unit is connected with the detecting unit through signals, the storage and calculation unit is connected with the logic unit through signals, and the control unit is connected with the storage and calculation unit, the inflation valve set, the deflation valve set and the inflation pump set through signals. Motion parameters corresponding to the current collision working condition are obtained through the logic unit and the storage and calculation unit, the inflation valve set, the inflation pump set and the deflation valve set are controlled by the control unit to execute corresponding motions according to the motion parameters, and therefore the front end of the automobile has the rigidity corresponding to the current collision working condition.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to an automobile front end stiffness adaptive system and a control method. Background technique [0002] With the continuous increase of car ownership, the collision accidents caused by cars are gradually increasing, so the safety of car collisions has attracted more and more attention. In the process of car collision, the collision part usually occurs at the front end of the car. In order to ensure the safety of the occupants, the front end of the car needs to have sufficient rigidity to ensure the living space of the occupants. [0003] At present, energy-absorbing devices are usually arranged at the front end of the car in existing cars, such as filling resin blocks or foam between the anti-collision beam and the skin at the front end of the car, and utilizing the deformation of the resin or foam to absorb energy; or between the anti-collision beam and the skin. A hydr...

AI Technical Summary

Problems solved by technology

However, the inventor of the present application found in the course of research that: the energy absorbing capacity of the above-mentioned energy-absorbing device is constant, so that the stiffness of the front end of the automobile is also constant. The lower effect is obvious, but for the collision process between cars and pedestrians, it will increase the damage to pedestrians

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