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:
Aug. 20, 1991
Filed:
Mar. 30, 1990
Applicant:
Inventors:
Akihiro Shirata, Yokohama, JP;
Toshifumi Koshizawa, Kawasaki, JP;
Yuichi Koyama, Machida, JP;
Yoshinobu Tsuchiya, Fujisawa, JP;
Assignee:
Isuzu Motors Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ; F02N / ; H02P / ;
U.S. Cl.
CPC ...
320-1 ; 290 / ;
Abstract
A motor vehicle power supply device includes an alternator drivable by an engine mounted on a motor vehicle, a battery chargeable by electric energy generated by the alternator, a capacitor connected to the alternator and the battery, and a charging speed varying circuit arrangement connected between the capacitor, and the alternator and the battery, for varying the speed at which the capacitor is charged. The charging speed varying circuit arrangement is controlled to vary the speed at which the capacitor is charged, depending on the operating condition of the motor vehicle.