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:
Feb. 14, 1995
Filed:
Mar. 17, 1993
Applicant:
Inventors:
Masami Ishikawa, Tokyo, JP;
Yukihiro Minezawa, Tokyo, JP;
Assignee:
Aisin AW Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L / ;
U.S. Cl.
CPC ...
307 101 ; 307 71 ; 307120 ; 307131 ; 180 658 ; 318139 ;
Abstract
A system of changing over an electric power source for an electric motor vehicle including a secondary battery and a generator. The system is provided with a changeover circuit for changing over a state of connection between the secondary battery and the generator; and a controller for determining a power supply mode on the basis of a vehicle speed and an electric current value for driving a motor, the controller being adapted to instruct a changeover to the power supply mode to the switching circuit, thereby allowing high-speed and long-distance running.