AIR BAG DEVICE

PROBLEM TO BE SOLVED: To accurately judge a cause without inflating an air bag when a rapid deceleration condition of a vehicle is generated. SOLUTION: A safety sensor 46 is provided with a dummy circuit switch 46A and a main circuit switch 46B operated mechanically in the case that a vehicle is pla...

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Bibliographic Details
Main Authors KUMAGAI KATSUHIDE, HORIBA TAMOTSU, OTAKI KIYOKAZU, MIZUI NOBUAKI
Format Patent
LanguageEnglish
Published 09.02.1999
Edition6
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:PROBLEM TO BE SOLVED: To accurately judge a cause without inflating an air bag when a rapid deceleration condition of a vehicle is generated. SOLUTION: A safety sensor 46 is provided with a dummy circuit switch 46A and a main circuit switch 46B operated mechanically in the case that a vehicle is placed in a rapid deceleration condition. In a condition switching an air bag to a condition able to inflate it (cutoff switch 40 is opened), when the vehicle is placed in a rapid deceleration condition, a switching transistor 58, 62 is actuated, a current is allowed to flow in a squib resistor 60. In this way, the air bag is inflated. On the other hand, in a condition switching to an inflation inhibiting condition (cutoff switch 40 is closed), when a rapid deceleration condition is generated, a switching transistor 56 is operated, in a dummy circuit, a current is carried. In this way, a movable contact of the dummy circuit switch 46A is thermally deformed.
Bibliography:Application Number: JP19970191448