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. 25, 2013
Filed:
Aug. 18, 2010
Applicants:
Yujiro Suwa, Cammerce Township, MI (US);
Alan S. Miller, Farmington Hills, MI (US);
Robert W. Riegel, Shelby Township, MI (US);
Inventors:
Yujiro Suwa, Cammerce Township, MI (US);
Alan S. Miller, Farmington Hills, MI (US);
Robert W. Riegel, Shelby Township, MI (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 28/00 (2006.01); G06F 19/00 (2011.01);
U.S. Cl.
CPC ...
Abstract
An engine control system includes a determination module and a detection module. The determination module, based on an engine vibration signal generated by an engine vibration sensor, determines a frequency of engine vibration and determines a crankshaft position corresponding to the engine vibration. The detection module detects engine oil aeration and starvation when the frequency and crankshaft position are greater than predetermined thresholds, respectively.