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. 20, 1990
Filed:
Dec. 12, 1988
Applicant:
Inventors:
Donald L Cummins, Anderson, IN (US);
James A Crisler, Pendleton, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 290 / ;
Abstract
An electronic control for an electric cranking motor. A start switch controls energization of the cranking motor. The control has an up-down counter. When the start switch is closed the counter counts up and when the start switch is open the counter counts down. When the counter attains a certain count magnitude the cranking motor is deenergized and is prevented from being subsequently energized for a predetermined period of time to allow the cranking motor to cool-down. The rate that the counter is counted down is lower than up-counting rate.