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:
May. 21, 1996
Filed:
Oct. 06, 1994
Tony Gioutsos, Brighton, MI (US);
Daniel N Tabar, Troy, MI (US);
Edward J Gillis, South Lyon, MI (US);
Automotive Systems Laboratory, Inc., Farmington Hills, MI (US);
Abstract
In a system (10) and method for controlling actuation of a vehicle passenger safety device in response to an event possibly requiring actuation of the safety device, a differential measure (m.sub.1 (t)) is generated based on stored consecutive values for received vehicle acceleration information while a measure (m.sub.2 (t)) correlated with the relative progress of the event is generated by selectively providing as an input to a first accumulator (24) either a weighted transitory value for received acceleration information (a(t)) whenever the transitory value is itself less than or equal to a first predetermined threshold value (x.sub.1), or a weighted alternative value, wherein the alternative value is itself equal to twice the first predetermined threshold value (x.sub.1) minus the transitory value. The differential measure (m.sub.1 (t)) is thereafter combined with the progress measure (m.sub.2 (t)) to effectively 'damp' or weight the former as a function of event progress, whereupon the resulting combination is accumulated in a second accumulator (30) to obtain a measure (m.sub.3 (t)) predictive of event severity, with the safety device being actuated when the predictive measure (m.sub.3 (t)) exceeds a second predetermined threshold value (x.sub.2).