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:
Oct. 15, 1996
Filed:
Sep. 09, 1994
Keiji Ito, Hoi-gun, JP;
Mitsuhiko Masegi, Nukata-gun, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A passenger protection system for a motor vehicle having a supplementary power supply for operating the protection system has a relatively small capacity. This enables the system to be made more compact and lighter. The vehicle includes a battery disposed in parallel with two diodes via a key switch. Output form one diode charges a back-up condenser. Discharge energy from the back-up condenser is provided to the airbag circuit via a switch. The output of the other diode is also provided to the airbag circuit. The switch is controlled by a detection circuit that judges whether energy is supplied from the back-up condenser to the airbag circuit. An ignition device is set so that the airbag may be operated via a switch which is turned on with deceleration so that the power is provided responsive to a collision determination.