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. 27, 2002
Filed:
Feb. 28, 2001
Mehta Vivek, Rochester Hills, MI (US);
Steven D. Stiles, Clarkston, MI (US);
Richard B. Jess, Haslett, MI (US);
James R. Royer, Flushing, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A method and apparatus for controlling the throttle position of a vehicle by modifying the pedal to throttle progression typically used by the electronic throttle controller to a throttle progression based on the driver's target acceleration and vehicle speed. Target acceleration is determined using a lookup table with inputs current vehicle speed and accelerator pedal displacement. Another lookup determines the end vehicle speed the driver will attain if the pedal displacement does not change. A signal indicating the new throttle position is the output of a controller whose input is the difference between end vehicle speed and current vehicle speed and whose gain is based on the target acceleration. Changes in throttle position can be limited based on an arbitration incorporating information received from other vehicle control systems. Preferably, control of the throttle will revert to the idle control system whenever the accelerator pedal is not displaced.