Control system for apparatus for protecting head portion of vehi

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control

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Details

701 46, 280735, B60R 2122

Patent

active

061546976

ABSTRACT:
A control system for an apparatus for protecting a head portion of a vehicle occupant includes: an air bag device having an air bag body for protecting a head portion of a vehicle occupant which air bag body inflates and unfolds between the head portion of the vehicle occupant and a side portion of a vehicle; a pretensioner which, upon operation, takes up slack of a seat belt fastened to the vehicle occupant; a roll angular velocity sensor for detecting a roll rate of the vehicle in order to determine a roll state of the vehicle; and a control circuit which, when a determined roll state is a predetermined roll state, controls operation of the air bag device and operation of the pretensioner such that the pretensioner is operated before operation of the air bag device. Accordingly, a space for unfolding the air bag body of the air bag device is ensured.

REFERENCES:
patent: 5029473 (1991-07-01), Jost et al.
patent: 5125472 (1992-06-01), Hara
patent: 5135253 (1992-08-01), Hirashima
patent: 5144559 (1992-09-01), Kamimura
patent: 5428534 (1995-06-01), Wetzel et al.
patent: 5461567 (1995-10-01), Kelley et al.
patent: 5890084 (1999-03-01), Halasz et al.
patent: 5925084 (1999-07-01), Gotoh et al.

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