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:
Apr. 11, 2006
Filed:
Apr. 07, 2004
Kerfegar K. Katrak, Fenton, MI (US);
Paul A. Bauerle, Fenton, MI (US);
Joseph M. Stempnik, Warren, MI (US);
Kevin T. Sharples, Pinckney, MI (US);
Kerfegar K. Katrak, Fenton, MI (US);
Paul A. Bauerle, Fenton, MI (US);
Joseph M. Stempnik, Warren, MI (US);
Kevin T. Sharples, Pinckney, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An engine control system includes an ignition switch that selectively initiates an ignition signal and an operating mode of an engine. A powertrain relay selectively generates a PR load signal based on the ignition signal and the operating mode. A control module enables an ignition signal diagnostic system when the operating mode is a RUN mode, the ignition signal is generated and the PR load signal is generated.