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. 19, 1998
Filed:
Aug. 01, 1996
Applicant:
Inventors:
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
322 28 ; 322 46 ;
Abstract
The rotor of a generator is provided with permanent magnets to ensure start-up of electricity generation without externally supplied field current after a vehicle engine starts. When the generation is detected, the external field current is supplied from a battery so that the battery is charged by the generator, thereby to prevent battery discharge in a low speed range.