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:
Aug. 01, 2006
Filed:
Feb. 18, 2005
Kerfegar K. Katrak, Fenton, MI (US);
John N. Stockbridge, Novi, MI (US);
Mark H. Costin, Bloomfield Township, MI (US);
Robert J. Schaller, Brighton, MI (US);
Timothy J. Hartrey, Brighton, MI (US);
James L. Worthing, Munith, MI (US);
Paul A. Bauerle, Fenton, MI (US);
Bruce A. Rogers, Novi, MI (US);
Kerfegar K. Katrak, Fenton, MI (US);
John N. Stockbridge, Novi, MI (US);
Mark H. Costin, Bloomfield Township, MI (US);
Robert J. Schaller, Brighton, MI (US);
Timothy J. Hartrey, Brighton, MI (US);
James L. Worthing, Munith, MI (US);
Paul A. Bauerle, Fenton, MI (US);
Bruce A. Rogers, Novi, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Apparatus are provided for an electronic throttle control (ETC) system having a throttle body assembly. The apparatus includes a throttle actuator, an input circuit receiving sensor signals and having first, second, and third reference voltages, a first throttle position sensor (TPS) connected to the second reference voltage, a second TPS connected to the second reference voltage, a manifold absolute pressure (MAP) sensor connected to the first reference voltage, a manifold airflow (MAF) sensor connected to the third reference voltage, and a processor connected to the input circuit and transmitting a control signal to the throttle actuator based on the sensors, reference voltages, and returns. The ETC system has improved remedial actions responsive to failures of the various sensors, reference voltages, and returns.