Control apparatus of passive seat belt

Details Control apparatus of passive seat belt Control apparatus of passive seat belt

1990-06-07

1992-02-18

Marmor, Charles A.

Land vehicles

Wheeled

Attachment

180268, B60R 2208

Patent

active

050887696

ABSTRACT:
A passive seat belt control apparatus includes a retractor for housing part of a seat belt. The retractor includes an arrangement for sensing acceleration and deceleration of a vehicle door and the speed at which the seat belt is pulled out from the retractor, and a mechanism for locking the seat belt. A solenoid operates to cancel the function of the retractor, and a door switch detects opening and closing of the vehicle door. A main control unit actuates the solenoid when the door switch detects that the door is open, and the main control unit includes an arrangement for continuously maintaining the solenoid operative for a predetermined time whenever the door switch detects that the door is closed after it has previously detected that the door is open.

REFERENCES:
patent: 4040645 (1977-08-01), Giffen
patent: 4235455 (1980-11-01), Collins
patent: 4703950 (1987-11-01), Pickett
patent: 4779700 (1988-10-01), Kataoka
patent: 4796916 (1989-01-01), Rogers et al.

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