Triggering device and active system used for automobile rear-end collision safety protection measures

Abstract

The invention discloses a triggering device and an active system used for automobile rear-end collision safety protection measures. The triggering device used for the automobile rear-end collision safety protection measures comprises a housing, a triggering block, a spring and a contact switch, wherein the triggering block, the spring and the contact switch are positioned in the cavity of the housing; through mechanical motion response of the triggering device, the contact switch of the triggering device can accurately send a triggering signal in time when an automobile suffers rear-end collision at an automobile accelerated speed higher than a preset rear-end collision accelerated speed threshold ac; an active rear-end collision safety protection device is triggered to be started to provide protection measures for automobile passengers during the rear-end collision so that the passengers are protected to reduce damages; and moreover, the triggering device used for the automobile rear-end collision safety protection measures works on the basis of a mechanical motion response mode and is slightly affected by various interference factors; and the material and device cost of the triggering device is low and is only less than 1 / 10 of that of a high-accuracy collision sensor in the prior art; and therefore, the triggering device used for the automobile rear-end collision safety protection measures has the advantages of high stability, high reliability and low cost.

Description

technical field [0001] The invention relates to a trigger device used for safety protection measures of automobile rear-end collision and an active system using the trigger device. Background technique [0002] When a car collides, safety protection measures need to be triggered to protect the safety of the occupants. For example, in the event of a frontal collision, the airbag needs to be triggered and deployed to protect the occupants and reduce the damage caused by the collision. [0003] Depending on the type of car collision, the occupant's injuries are also different. When a rear-end collision occurs, the occupant's head and neck will whip and whip, thus causing neck damage. [0004] Different types of car collisions require different safety protection measures. In a rear-end collision, the backrest and headrest of the car seat provide the most important protection measures, but the seat structure will have a great impact on the protection effect; if active safety pr...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a trigger device and an active system for safety protection measures of automobile rear-end collisions, so as to solve the problems of high cost, poor stability and reliability of the existing trigger devices

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