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:
Aug. 25, 2015
Filed:
Mar. 19, 2012
Douglas Raymond Martin, Canton, MI (US);
Michael Stephen Sweppy, Manchester, MI (US);
Matthew D. Smith, Dearborn Heights, MI (US);
John Smiley, Southfield, MI (US);
Douglas Raymond Martin, Canton, MI (US);
Michael Stephen Sweppy, Manchester, MI (US);
Matthew D. Smith, Dearborn Heights, MI (US);
John Smiley, Southfield, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for diagnosing an intake air temperature sensor in a hybrid electric vehicle. An engine temperature is compared to each of an intake air temperature sensed before an engine start but after sufficient engine soak, as well as an intake air temperature sensed after selected vehicle operating conditions have elapsed since the engine start. Based on discrepancies between the air temperature and the engine temperature, degradation of the sensor is determined.