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:
Jul. 08, 1997
Filed:
Dec. 14, 1995
John David Simon, Darlington, PA (US);
Michael Joseph Dreon, Utica, MI (US);
William Lee Small, Cortland, OH (US);
Pierre Youssef Abboud, Tucson, AZ (US);
Brian Douglas Pasha, Cortland, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A motor vehicle has a daytime running light system for providing automatic illumination of a pair of headlamps at reduced intensity. The reduced intensity operation is accomplished by way of a switch mode power converter which operates to provide a daytime running light voltage that is less than the vehicle system voltage normally supplied to the headlamps. The switch mode power converter makes extremely efficient use of the vehicle electrical power by minimizing power dissipation in attaining a lower daytime running light voltage. Furthermore, the daytime running light system is amenable to simple calibration modification to implement varying daytime running light voltage levels in accordance with vehicle system and/or various international requirements.