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. 08, 2013
Filed:
May. 18, 2011
Applicants:
Peter Schaefer, Bretten, DE;
Clement Rinkert, Bretten, DE;
Inventors:
Peter Schaefer, Bretten, DE;
Clement Rinkert, Bretten, DE;
Assignee:
BorgWarner BERU Systems GmbH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for operating a diesel fuel filter heater comprising at least one PTC element, in a motor vehicle. According to the invention, a glow plug control device is used to generate an effective voltage from a vehicle system voltage using pulse width modulation, which is then applied at the filter heater.