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:
Jun. 18, 2019
Filed:
Jun. 08, 2015
Ford Global Technologies, Llc, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Embodiments for determining oxygen concentration using an oxygen sensor are provided. In one example, a method for determining oxygen concentration Oin a gas flow of an internal combustion engine which is equipped with an engine controller and an oxygen sensor comprises determining the oxygen concentration Oof the gas flow in a ceramic measurement cell of the sensor by current Iwhich is detected by measurement and which flows when a constant voltage Uis applied and maintained, and correcting the oxygen concentration based on a pressure pat the measurement cell. In this way, the measured oxygen concentration may be corrected based on the pressure of the air at the sensor.