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:
Jan. 26, 2016
Filed:
Jul. 10, 2012
Eric W. Schneider, Shelby Township, MI (US);
Spyros Tseregounis, Davis, CA (US);
Matthew J. Snider, Howell, MI (US);
Michael Seemann, Bischofsheim, DE;
Eric W. Schneider, Shelby Township, MI (US);
Spyros Tseregounis, Davis, CA (US);
Matthew J. Snider, Howell, MI (US);
Michael Seemann, Bischofsheim, DE;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
Systems and methods for automatically evaluating the useful life of an engine oil based on data corresponding to a plurality of preselected key oil properties. The evaluation includes determining, in connection with each of the pre-selected key oil properties, a first current measured oil property value, a first reference oil property value, a first deterioration-limit value, and a first weighting factor. The evaluation also includes determining a single index value, indicating a state of deterioration of the engine oil, in a calculation using each of the values and factors.