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:
May. 04, 2010
Filed:
Jun. 25, 2009
Applicants:
Francois Colet, Bois-Colombes, FR;
Richard Roth, Nanterre, FR;
Nicolas Palanque, Vicennes, FR;
Inventors:
Assignee:
Renault S. A. S., Boulogne Billancourt, FR;
Primary Examiner:
Int. Cl.
CPC ...
F02P 19/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for controlling a low-voltage-powered plug () for preheating a diesel engine () air/fuel mixture. The plug () is powered by pulses having a predetermined amplitude and duration, said amplitude being less than a maximum amplitude (PWM_MAX). The amplitude and duration of the voltage pulses powering the plug () are controlled as a function of first parameters including the duration of the preceding pulses and the duration between successive preceding pulses.