公开(公告)号：US3870894A

公开(公告)日：1975-03-11

申请号：US33402373

申请日：1973-02-20

Applicant: DYNAMIT NOBEL AG

Inventor： BREDE UWE ,  FLACH KARL-EGON ,  GAWLICK HEINZ ,  HIRSCHMANN GUNTER ,  KREIBICH WALTER

IPC: B60R21/16 ,  B60R21/01 ,  G01P15/08 ,  G01P15/09 ,  H01H35/14

CPC classification number: G01P15/0907 ,  B60R21/01 ,  G01P15/0891 ,  Y10T307/799

Abstract: An electronic sensing system for triggering the activation of a safety mechanism of a vehicle during a vehicle collision. The system includes a piezoelectric transducer providing an output indicative of shock acceleration of the vehicle, an evaluating and safety circuit for processing the output of the transducer in accordance with predetermined dynamic deformation characteristics of the vehicle and for providing a triggering output signal to an ignition circuit for activating the safety mechanism such as an air bag system. The evaluating and safety circuit provides a triggering output signal depending upon whether at least one of a predetermined threshold value has been attained by the output signal of the transducer and that the value is maintained for a predetermined delay period.

Abstract translation: 一种用于在车辆碰撞期间触发车辆的安全机构的电子感测系统。 该系统包括提供指示车辆的冲击加速度的输出的压电换能器，用于根据车辆的预定的动态变形特性来处理换能器的输出并用于向点火电路提供触发输出信号的评估和安全电路 用于启动诸如气囊系统的安全机构。 评估和安全电路根据换能器的输出信号是否已达到预定阈值中的至少一个并且将该值保持预定的延迟周期来提供触发输出信号。