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. 15, 2004
Filed:
Nov. 26, 2001
David George Farmer, Plymouth, MI (US);
David Oshinsky, Trenton, MI (US);
Edward Badillo, South Lyon, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system ( ) and method for determining the closed position of a throttle plate of an internal combustion engine ( ) are provided. The system ( ) includes a throttle sensor ( ), a temperature sensor ( or ), and an electronic control unit (ECU) ( ). The throttle sensor ( ) generates a signal indicative of the position of the throttle plate ( ). The temperature sensor ( or ) generates a signal indicative of the temperature of a throttle body ( ) of the engine ( ). The ECU ( ) is configured to select one of a first closed position value indicated by throttle sensor ( ) signal and a second closed position value retrieved from a memory ( ) responsive to the measured temperature. The inventive system is able to minimize inaccuracies in throttle plate position detection by eliminating errors resulting from a change in geometry between the throttle plate ( ) and the throttle body ( ) of the engine during relatively high temperatures.