Air bag system

Details Air bag system Air bag system

1997-09-30

1999-02-09

Ellis, Christopher P.

Land vehicles

Wheeled

Attachment

701 45, B60R 2132

Patent

active

058684239

ABSTRACT:
In an air bag system according to the invention, there is employed a control device which can control the internal pressure of an air bag after expanded in such a manner that a buffer distance, for which the air bag after expanded can be compressed when it is contacted with an occupant, can be kept constant regardless of an increase or a decrease in the weight or the like of the occupant. In operation, the control device firstly takes out the acceleration data of the occupant corresponding to the degree of a collision in accordance with a signal from an acceleration sensor. Next, in accordance with the thus taken-out acceleration, a distance from the air bag before expanded to the head and bosom portion of the occupant obtained based on a signal from a distance sensor, and the weight of the occupant head and bosom portion obtained based on a signal from a weight sensor, the control device calculates a proper value of the internal pressure of the air bag according to a velocity/distance/power balancing condition equation, and controls a gas generation device in such a manner it can produce a generated gas pressure corresponding to the thus calculated proper value.

REFERENCES:
patent: 5407228 (1995-04-01), Shibata et al.
patent: 5573269 (1996-11-01), Gentry et al.
patent: 5670853 (1997-09-01), Bauer
patent: 5707078 (1998-01-01), Swanberg et al.

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