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.
Patent No.:
Date of Patent:
Nov. 02, 1999
Filed:
Dec. 19, 1996
Hirofumi Takasuka, Akashi, JP;
Hiroyuki Konishi, Himeji, JP;
Jun Fujiwara, Kakogawa, JP;
Masaru Yokochi, Nagoya, JP;
Yoshikazu Ohno, Okazaki, JP;
Fujitsu Ten Limited, Kobe, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An apparatus detects a collision according to a signal from an acceleration sensor 1, to deploy an air bag of a car. The apparatus prevents an erroneous deployment of the air bag when the car is driving along a rough road. The apparatus employs two deceleration thresholds for a signal from the acceleration sensor 1. The apparatus has a signal integrator 3 that integrates an area of the signal defined by the thresholds as well as an acceleration area of the same signal. The apparatus has a determination unit 4 that determines a collision if an integral provided by the signal integrator 3 is above a value corresponding to an OFF collision that requires no deployment of the air bag.