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:
Jul. 16, 2002
Filed:
Dec. 11, 2000
Jonas Bärgman, Göteborg, SE;
Dion Kruse, Alingsås, SE;
Autoliv Development AB, Vårgårda, SE;
Abstract
A safety arrangement in a motor vehicle comprises a safety device ( ) adapted to protect an occupant of the vehicle in the case of a roll-over accident, and a roll sensor arrangement to provide a signal ( ) to trigger activation of the safety device. A sensor ( ) senses an angular parameter such as angular speed about the longitudinal axis of the vehicle, or the actual angle of roll about the longitudinal axis of the vehicle. A further sensor ( ) senses a velocity parameter relating to the vehicle speed, such as the total velocity of the vehicle, or the velocity of the vehicle in a predetermined direction. A processor ( ) senses an angular speed in excess of a predetermined threshold, which activates a timing mechanism ( ) which is associated with a processor ( ) which compares angular velocity with a threshold, and provides a triggering signal if the threshold is exceeded. The threshold is a function of vehicle speed. The angular velocity is also compared with a further threshold in another processor ( ), the threshold in this processor being a function of angle of roll. If this processor generates an output signal, the safety device ( ) is activated.