Land vehicles – Wheeled – Attachment
Patent
1995-08-15
1997-01-07
Johnson, Brian L.
Land vehicles
Wheeled
Attachment
280806, 180268, 3404571, 200 6158B, B60R 2132, B60R 2246, B60R 2248
Patent
active
055909043
ABSTRACT:
A vehicle occupant restraint system (20) includes an inflatable air bag (41) and an actuatable inflator (40) for, upon actuation, providing inflation fluid for inflating the air bag. A seat belt (105) extends across the vehicle occupant to restrain the occupant. A tongue (110) is connected with the seat belt (105), and a buckle (57) receives and latches the tongue (110) in the buckle (57). A pretensioner (44) is operatively connected to the belt (105). An indicator (59) indicates to the occupant if the tongue (110) is not received in the buckle (57). A seat belt buckle switch (66) is operatively connected to the buckle (57). The seat belt buckle switch (66) has electrically conductive normally closed contacts (74, 76) which open upon insertion of the tongue (110) into the buckle (57). A resistor network is electrically connected to the normally closed contacts (74, 76). The resistor network provides a first electrical signal having a first characteristic when the normally closed contacts (74, 76) are closed and a second electrical signal having a second characteristic when the normally closed contacts (74, 76) are open. A controller (24) is operatively connected to the inflator (40), the pretensioner (44), the resistor network (60, 72) and the indicator (59). The controller (24) controls actuation of the inflator (40), the pretensioner (44) and the indicator (59) in accordance with the first and second electrical signals.
REFERENCES:
patent: 3438455 (1969-04-01), Redmond
patent: 3897081 (1975-07-01), Lewis
patent: 3934671 (1976-01-01), Hart
patent: 4984651 (1991-01-01), Grosch et al.
patent: 5067212 (1991-11-01), Ellis
patent: 5338063 (1994-08-01), Takeuchi et al.
patent: 5411289 (1995-05-01), Smith et al.
patent: 5413378 (1995-05-01), Steffens, Jr. et al.
Ellis Robert P.
Niedzwiecki Leon P.
Nill Robert E.
English Peter C.
Johnson Brian L.
TRW Vehicle Safety Systems Inc.
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