Electromechanical acceleration sensor

Details Electromechanical acceleration sensor Electromechanical acceleration sensor

1996-04-24

1997-12-02

Culbreth, Eric D.

Motor vehicles

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

Responsive to sensing of acceleration, deceleration, or tilt...

280735, 200 6153, B60R 2132, H01H 3514

Patent

active

056925808

ABSTRACT:
An inertial sensor for activating a vehicular passenger restraining system has a sensor body which is slidably guided translationally in a housing and preloaded in a rest position by a return spring. The sensor body includes an actuating pin for actuating a contact pair which is located in the current circuit of an electric igniter. The preloading force of the return spring is overcome by an acceleration as low as approx. 2 g. Following an initial stroke of approx. 2 mm the movement of the sensor body is counteracted by an additional spring, the spring force of which is several times that of the return spring. The subsequent actuating stroke amounts to only approx. 0.5 mm. With good reliability in preventing malactivation a fast response is achieved.

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