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:
Mar. 10, 2015
Filed:
May. 31, 2007
Applicants:
Markus Kernwein, Bretten Büchig, DE;
Olaf Toedter, Walzbachtal, DE;
Inventors:
Markus Kernwein, Bretten Büchig, DE;
Olaf Toedter, Walzbachtal, DE;
Assignee:
BorgWarner BERU Systems GmbH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23Q 7/24 (2006.01); F02P 19/02 (2006.01);
U.S. Cl.
CPC ...
F02P 19/025 (2013.01); F02P 19/023 (2013.01);
Abstract
A method for controlling a glow plug in a diesel engine, in particular in the preheating phase, is described. According to the invention, it is provided that the time gradient of an electrical variable which varies according to the temperature of the glow plug is measured and compared with a threshold value, and when said time gradient exceeds or drops below the threshold value, the electric supply voltage of the glow plug is changed.