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:
Nov. 10, 2020
Filed:
Apr. 04, 2018
International Business Machines Corporation, Armonk, NY (US);
Matthew S. Doyle, Chatfield, MN (US);
Joseph Kuczynski, North Port, FL (US);
Jeffrey N. Judd, Oronoco, MN (US);
Timothy J. Tofil, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A process of evaluating performance of a positive crankcase ventilation (PCV) valve is disclosed. The process includes utilizing an optical sensor coupled to the PCV valve to collect baseline valve position data during a calibration phase. The baseline valve position data represents satisfactory PCV valve performance. The process also includes utilizing the optical sensor to collect operational valve position data during an operational phase. The process further includes determining whether a deviation of the operational valve position data from the baseline valve position data satisfies a performance threshold associated with unsatisfactory PCV valve performance. When the deviation satisfies the performance threshold, the process includes communicating an error code to an alert indicator.