Collision detecting device and passive safety system

Details Collision detecting device and passive safety system Collision detecting device and passive safety system

2006-11-07

2006-11-07

Fleming, Faye M. (Department: 3616)

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

Reexamination Certificate

active

07131512

ABSTRACT:
A collision detecting device providing the accurate and early determination of a collision with a vehicle or the like, and a passive safety system using this collision detecting device. A low-rigid portion and a crash box are arranged ahead of a high-rigid portion in a front portion of a frame. The front end of a rod is fixed to a bumper. The rod is inserted into a magnetic detector disposed on the high-rigid portion. In the rod, a number of magnets are aligned in the longitudinal direction of the rod such that their N poles and S poles are alternatively arranged. As a vehicle collides, the crash box is first deformed so that the rod moves backward, whereby a collision can be detected before large acceleration is generated.

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