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:
Mar. 07, 1995
Filed:
Apr. 17, 1992
Sensor Technology Co., Ltd., Kobe, JP;
Abstract
An electronic crash sensor which can operate appropriately in response to any form of crash of any vehicle, more especially to a high speed oblique or pole crash of a vehicle which has a less rigid body or to a compound crash which is compound of various forms of crash, to say nothing of a high speed oblique or pole crash of a vehicle which has a normal rigid body. An input acceleration waveform from an accelerometer is processed to peak cut any portion thereof lower than a predetermined value. Then, the value obtained by the said peak cutting is time integrated. Then, a time integrated value of a predetermined function is subtracted from the value obtained by the said time integration. Then, the value of the acceleration waveform thus obtained is firstly compared with a predetermined time function value, and when the former is higher than the latter, a triggering signal is developed, while a diffrential of the said values of the acceleration waveform per a predetermined time value is secondly compared with a predetermined value, and when the former is higher than the latter, a triggering signal is developed. And further, the said first comparing means and the said second comparing means are connect with a trigger circuit to trigger a passenger protecing apparatus called an air bag by way of a connecting means.