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. 01, 2011
Filed:
Dec. 21, 2007
Applicants:
Juan Miguel Rodrigues, Paris, FR;
Nicolas Palanque, Vincennes, FR;
Inventors:
Juan Miguel Rodrigues, Paris, FR;
Nicolas Palanque, Vincennes, FR;
Assignee:
Renault S.A.S., Boulogne-Billancourt, FR;
Primary Examiner:
Int. Cl.
CPC ...
F23Q 7/00 (2006.01); F02P 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for controlling power supply of a pre-heat plug in an internal combustion engine to reach an ignition temperature for restarting the engine after the engine has stopped. The temperature of the pre-heat plug is determined using a first mathematical model and according to an elapsed engine-stop time, and additional energy to be supplied to the pre-heat plug for reaching the ignition temperature is determined using a second mathematical model and according to the temperature of the pre-heat plug.