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. 01, 2012
Filed:
Jul. 13, 2010
Applicants:
Daniel a Bialas, Ann Arbor, MI (US);
Igor Anilovich, Walled Lake, MI (US);
John W. Siekkinen, Novi, MI (US);
Thomas F. Porlick, Brighton, MI (US);
Inventors:
Daniel A Bialas, Ann Arbor, MI (US);
Igor Anilovich, Walled Lake, MI (US);
John W. Siekkinen, Novi, MI (US);
Thomas F. Porlick, Brighton, MI (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A diagnostic system includes a temperature derivative module and a heater use module. The temperature derivative module determines a derivative of a temperature of one of a fluid of an engine of a vehicle and a component of the engine measured by a temperature sensor after a vehicle startup event. The heater use module selectively indicates that an engine heater was used before the vehicle startup event based on the derivative.