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. 04, 1987
Filed:
Jul. 03, 1986
Applicant:
Inventor:
Thomas A Radomski, Utica, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
290 31 ; 290 46 ; 320-6 ;
Abstract
A starter/generator in combination with a dual battery dual voltage motor vehicle electrical system and an equalization circuit for maintaining substantially equal charge on the batteries. In starting, the starter/generator is operated as an equivalent series motor from the serial combination of the two batteries to crank the engine. Upon starting, the starter/generator supplies charging current at one or the other of the system voltages, depending on the engine speed. At all times, the equalization circuit transfers energy from one battery to the other as required to maintain balanced battery voltages.