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

A technology of safety protection device and trigger device, which is applied in the direction of vehicle safety arrangement, pedestrian/occupant safety arrangement, vehicle components, etc., can solve the problems of poor stability and reliability, and high cost of trigger device, and achieve high stability and reliability. The effect of low cost and damage avoidance

Pending Publication Date: 2018-09-28
GAC COMPONENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment approach

[0029]As a preferred embodiment of the present invention: the trigger device is also provided with a limit plate 7; the limit plate 7 is provided with a through hole 7a, the limit plate 7 is fixed in the inner cavity of the shell 1, and the trigger block 2 is located between the limit plate 7 and the shell. Between the rear end position 12 of 1, the rear end of the spring 3 passes through the through hole 7a of the limiting plate 7 and is fixed to the trigger block 2.

[0030] Thus, if image 3 As shown, when the car has a frontal collision, the body 5 of the car is subjected to a frontal collision force F in the direction of the rear Q , the body 5 of the car and the casing 1 of the trigger device are subjected to a frontal collision acceleration a in the backward direction Q The action decelerates instantaneously, and because the stretching degree of the spring 3 cannot change abruptly at the moment of the front collision, the trigger block 2 moves forward relative to the s...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/0136
CPCB60R21/0136
Inventor 黄政平朱新涛张国杰王春红杨公可余成
Owner GAC COMPONENT CO LTD
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