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:
Jan. 08, 1985
Filed:
Nov. 10, 1983
Applicant:
Inventor:
Leonard J Sheldrake, Noblesville, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 92 ; 361110 ; 320 13 ; 320 48 ; 340636 ; 340663 ; 307 / ;
Abstract
A system responsive to the voltage of a motor vehicle battery when the vehicle engine is not running operates to disconnect the battery from the vehicle electrical loads prior to the point at which the battery becomes too discharged to restart the vehicle engine. The apparatus which operates to disconnect the battery from the loads is inhibited if an abrupt battery voltage drop indicative of vehicle entry is sensed, and the inhibit is maintained for a timed period sufficiently long in duration to allow entry of the vehicle and starting of the engine.