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 Title: |
US5161820:
Inflatable air bag safety device for motor vehicles
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Vollmer, Elmer; Wettstetten, Germany
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| Assignee: |
Audi AG, Ingolstadt, Germany
other patents from AUDI AG (44580) (approx. 186)
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| Published / Filed: |
1992-11-10
/ 1991-05-21
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| Application Number: |
US1991000703689
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| IPC Code: |
Advanced:
B60R 21/01;
B60R 21/015;
Core:
more...
IPC-7:
B60K 28/00;
B60R 21/22;
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| ECLA Code: |
B60R21/015; L60R21/015G2;
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| U.S. Class: |
Current:
280/730.1;
180/273;
280/732;
280/735;
340/666;
340/667;
Original:
280/730;
280/732;
280/735;
180/273;
340/666;
340/667;
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| Field of Search: |
280/730,731,732,735
180/273,272
340/666,667
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| Priority Number: |
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| Abstract: |
An improved inflatable passenger side air bag safety device for motor vehicles for detecting the presence or absence of a passenger positioned on or in front of a particular passenger vehicle seat. The safety device comprises a control unit for the intelligent triggering of the propellant charge for the air bag when a triggering event is detected, such as an impending collision, and the presence of a passenger is also detected. The control unit receives signals from a pair of switches, electrically connected in parallel to one another, including a first seat switch for detecting the presence or absence of a sitting passenger and a second foot switch for detecting the presence or absence of a standing, kneeling, or sitting passenger in the region in front of the vehicle seat. In the preferred embodiment both switches are flat, contact type switches, each having a broad surface area and are activated when subjected to the weight of a passenger from above. An acceleration sensor is also connected to the control unit for signaling the event of an impending collision. In an alternate embodiment the foot switch is a condenser-type switch in the form of a metallic screen interwoven within the floor carpet and detects fluctuations in the magnetic and electric fields corresponding to the presence or absence of a passenger positioned over the floor carpet. The air bag associated with the vehicle seat is caused to be activated during a triggering event if either of the seats switch and/or foot switch are activated by a passenger.
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| Attorney, Agent or Firm: |
Dulin, Jacques M. ;
Feix, Thomas C. ;
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| Primary / Asst. Examiners: |
Marmor, Charles A.; Dickson, Paul
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| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
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| Designated Country: |
DE FR GB SE
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| Family: |
Show 4 known family members
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First Claim:
Show all 16 claims |
I claim:
1. In a passenger side inflatable air bag safety device for use in motor vehicles of the type in which a control unit is provided for the intelligent triggering of a propellant charge associated with the inflatable air bag to provide a protective cushion for the passenger when two conditions have been satisfied including a first condition where a collision of a sufficient severity is occurring and a second condition where a passenger is present in a vehicle seat, and in which determination of the first condition is accomplished by an acceleration sensor connected to said control unit to sense the magnitude and direction of an impending collision of the motor vehicle and determination of the second condition is accomplished by a switch disposed in said vehicle seat for determining the presence or absence or a passenger seated on said vehicle seat, the improvement comprising:
- a) means for detecting the presence of a person standing, kneeling or sitting on a floor mat region in front of said passenger vehicle seat;
- b) said detecting means is disposed in association with a floor mat and sends a signal to said control unit when a passenger is present in said floor mat region so that said control unit will activate the ignition of the propellant charge for said passenger side air bag upon satisfaction of said first condition;
- c) said detecting means is electrically connected in parallel with said first seat switch so that said detecting means signals said control unit independently of said first seat switch; and
- d) said control unit includes a safety override means for triggering the propellant charge of said passenger side air bag for an operation condition where said detecting means does not confirm the presence of a passenger in the region adjacent said passenger seat and said first seat switch does not confirm the presence of a passenger seated on said vehicle seat when said acceleration sensor has signaled said control unit of an impending collision above a preselected severity level.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 156 U.S. patent(s) that reference this one
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| Foreign References: |
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PDF |
Publication |
Date |
IPC Code |
Assignee |
Title |
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EP0357225
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1990-03 |
B60R 21/01
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Mazda Motor Corporation
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Air bag system for automobile |
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DE2134590
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1972-01 |
B60R 21/10
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DE2516185
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1975-10 |
B60R 21/01
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IKEDA BUSSAN CO
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Sicherheitseinrichtung fuer Fahrzeuge |
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DE3635644
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1987-04 |
G01V 3/08
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Aisin Seiki K.K., Kariya, Aichi, JP
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Anzeigevorrichtung fuer Personen |
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DE3702825
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1988-08 |
B60R 21/01
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Bayerische Motoren Werke AG, 8000 Muenchen, DE
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Rueckhaltesystem fuer Kraftfahrzeuge |
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DE3802159
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1989-08 |
B60R 16/02
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Dr.Ing.h.c. F. Porsche AG, 7000 Stuttgart, DE
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Schalteinrichtung |
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DE3805887
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1989-09 |
H01H 3/02
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Kromberg & Schubert, 5600 Wuppertal, DE
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Schaltmatte fuer Kraftfahrzeugsitze |
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DE3809074
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1989-10 |
B60R 21/01
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Audi AG, 8070 Ingolstadt, DE
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Safety system for motor vehicles, including an inflatable crash protection cushion |
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| Other Abstract Info: |
DERABS G91-347842
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