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:
Dec. 11, 2012
Filed:
Jul. 30, 2009
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Dave Charles Weber, Toledo, OH (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Dave Charles Weber, Toledo, OH (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Various systems and methods are described for controlling an engine in a vehicle during engine operation, the engine having an exhaust and a NOsensor coupled in the engine exhaust. One example includes correcting the NOx sensor to account for transients in exhaust gas flow, such as transients in exhaust gas flow rate. Such transients may cause NOx sensor temperature to deviate from a desired value as the sensor heater is unable to maintain temperature during such transients. In this way, even during such transients, accurate NOx readings are still available.