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.

Date of Patent:
Jul. 02, 1985

Filed:

Dec. 14, 1983
Applicant:
Inventor:

Charles A Herman, Fort Wayne, IN (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 61 ; 290 / ; 290 50 ; 322 38 ;
Abstract

A control circuit for a vehicle electrical system which is operative when the vehicle engine is running but the vehicle is not in motion to sense vehicle storage battery voltage and, when that voltage is below a predetermined threshold, to enable an electrically controllable device to open somewhat the engine throttle raising engine speed and increasing the output of an engine driven electrical source. The control circuit finds particular utility in emergency vehicles such as ambulances and the like where that vehicle may remain at an emergency site for an extended period of time with the engine idling and with numerous electrical demands on the vehicle electrical system to increase the engine speed when those electrical demands have sufficiently exceeded the output of an engine driven alternator with the engine running at idle.


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