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:
Apr. 22, 2014
Filed:
Aug. 18, 2010
Stefano Cassani, Linkoping, IT;
Stefano Cassani, Linkoping, IT;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method is provided for controlling one or more glowplugs in a compression-ignition engine. The controlling of the glowplug involves the prediction of a glow plug temperature to control a power supply to the glowplug. A supplied power to a glowplug and a combustion chamber temperature is determined. A temperature of the glowplug is predicted and the predicted glowplug temperature is used to control a power supply to the glowplug. The predicted glowplug temperature is derived from a numerical solution of a differential equation for the glowplug temperature. The differential equation is nonlinear in the glowplug temperature.