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:
Oct. 10, 2017
Filed:
Aug. 25, 2015
Ayman M Ismail, Westland, MI (US);
Ethan E Bayer, Lake Orion, MI (US);
John R Bucknell, Royal Oak, MI (US);
Ayman M Ismail, Westland, MI (US);
Ethan E Bayer, Lake Orion, MI (US);
John R Bucknell, Royal Oak, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A technique is provided for compensating an untrimmed oxygen (O) sensor utilized in operation of an exhaust gas recalculation (EGR) system associated with an engine. The technique includes, in one implementation, receiving a measurement from the Osensor at a known pressure, where the Osensor is positioned on an intake side of an engine system. Humidity compensation and pressure compensation are then determined for the Osensor measurement, where the pressure compensation is based in part on the humidity compensation. The EGR system is controlled using the untrimmed Osensor measurement that has been compensated for pressure and humidity.