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:
Nov. 10, 2009
Filed:
Jan. 08, 2007
Matthew J. Snider, Howell, MI (US);
David P. Quigley, Brighton, MI (US);
Richard A. Barkman, Royal Oak, MI (US);
Robert T. Stockwell, Ponca City, OK (US);
Steven J. Andrasko, Wixom, MI (US);
Matthew J. Snider, Howell, MI (US);
David P. Quigley, Brighton, MI (US);
Richard A. Barkman, Royal Oak, MI (US);
Robert T. Stockwell, Ponca City, OK (US);
Steven J. Andrasko, Wixom, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
An oil life monitoring system for a diesel engine system includes a viscosity loss module, a viscosity gain module, and a remaining oil life module. The viscosity loss module determines a percentage of viscosity loss of engine oil based on fuel accumulation in the engine oil. The viscosity gain module determines a percentage of viscosity gain of engine oil based on fuel evaporation and/or soot accumulation in the engine oil. The remaining oil life module communicates with the viscosity loss module and the viscosity gain module and determines a percentage of oil life remaining based on the percentage of viscosity loss and/or the percentage of viscosity gain.