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:
May. 08, 2012
Filed:
Dec. 12, 2008
Gary L. Rogers, Davison, MI (US);
Zhong Wang, Bellevue, WA (US);
Michael A. Turley, Dexter, MI (US);
Scott A. Kegebein, Brighton, MI (US);
Gary L. Rogers, Davison, MI (US);
Zhong Wang, Bellevue, WA (US);
Michael A. Turley, Dexter, MI (US);
Scott A. Kegebein, Brighton, MI (US);
Abstract
An engine control system having primary and secondary fuel tanks comprises a fuel monitoring module and a transfer pump (TP) diagnostic module. The fuel monitoring module determines a measured fuel level of the secondary fuel tank based on a fuel level signal received from a fuel level sensor when a fuel TP is on for greater than a predetermined time period required for the fuel TP to reduce the measured fuel level from a predetermined fuel level to below the predetermined fuel level. The TP diagnostic module diagnoses a condition of the fuel TP based on the measured fuel level.