The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 21, 2001

Filed:

Apr. 14, 1999
Applicant:
Inventor:

Yasumasa Kanameda, Tomioka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 ; B60R 2/200 ; G05D 3/00 ;
U.S. Cl.
CPC ...
G06F 7/00 ; B60R 2/200 ; G05D 3/00 ;
Abstract

If deceleration in excess of a predetermined value is detected (step,in FIG.2), a speed integral value &Dgr;V as time integration of the deceleration is calculated (step,in FIG.2). A segment length of a characteristic curve of the speed integral value &Dgr;V in a predetermined range is calculated (steps,in FIG. 2). If it is decided that the segment length is smaller than a predetermined value l,(step,in FIG. 2), the crash is decided to be a low speed crash, etc. other than a soft crash. An air bag is inflated if the speed integral value &Dgr;V exceeds a predetermined threshold value V,, whereas the speed integral value &Dgr;V is incremented by a predetermined value &agr; (step,in FIG. 2) if it is decided that the segment length exceeds l,(step,in FIG. 2). Then, if it is decided that the speed integral value &Dgr;V exceeds the threshold value V,(step,in FIG. 2), inflation of the air bag is executed with detection of a soft crash.


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