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:
Mar. 30, 2004

Filed:

Sep. 17, 2002
Applicant:
Inventor:

Atsuo Ota, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60R 2/200 ; E05F 1/500 ; G05D 1/00 ; G05D 3/00 ; G06F 1/700 ;
U.S. Cl.
CPC ...
B60R 2/200 ; E05F 1/500 ; G05D 1/00 ; G05D 3/00 ; G06F 1/700 ;
Abstract

To provide a collision detecting apparatus for a vehicle, including an integrating apparatus for cumulatively integrating an output from the acceleration sensor when the output exceeds a specific calculation start level, and a collision detecting apparatus for outputting a collision signal when a cumulative integral value calculated by the integrating apparatus exceeds a threshold value. The collision detecting apparatus is intended to accurately perform a collision decision with a high responsiveness irrespective of the severeness of the collision. The collision detecting apparatus includes a differentiating apparatus D for differentiating the output G from the acceleration sensor S, and a correcting apparatus H for correcting the threshold value &agr; on the basis of a differential value (dG/dt) calculated by the differentiating apparatus D.


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