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:
Feb. 24, 2015
Filed:
May. 24, 2013
Ford Global Technologies, Llc, Dearborn, MI (US);
Garry Anthony Zawacki, Livonia, MI (US);
Robert F. Novak, Farmington Hills, MI (US);
Roberto Teran, Jr., Livonia, MI (US);
Dave Charles Weber, Toledo, OH (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Michael Hopka, Milford, MI (US);
William Charles Ruona, Farmington Hills, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, particulate sensor degradation is indicated in response to an output of said particulate matter sensor staying below a threshold as engine temperature increases past the dewpoint temperature.