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:
Oct. 03, 1995
Filed:
Feb. 03, 1993
Applicant:
Inventors:
Assignee:
Volkswagen AG, Wolfsburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ; H02J / ; H02J / ;
U.S. Cl.
CPC ...
307 101 ; 307 66 ; 307 107 ;
Abstract
For fuel economy, it is known that the engine of a motor vehicle may be turned off during vehicle operation while the electrical power for various appliances, such as the lighting circuit or the radio must be maintained. Upon restarting the engine, there may be a voltage drop in the vehicle supply circuit voltage with deteriorating effects in the lighting circuit and possibly failure of the radio. The disclosed circuit prevents such effects by limiting the rate of change of variations in vehicle supply circuit voltage as a function of connecting and disconnecting of a high-power component such as the starter.