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:
Jul. 06, 2010
Filed:
May. 07, 2009
Christopher E. Whitney, Highland, MI (US);
Michael S. Emmorey, Brighton, MI (US);
Jeffrey M. Kaiser, Highland, MI (US);
Robert C. Simon, Jr., Brighton, MI (US);
Cheryl A. Williams, Howell, MI (US);
Jon C. Wasberg, Davison, MI (US);
Eric Ferch, Northville, MI (US);
Craig M. Sawdon, Williamston, MI (US);
Christopher E. Whitney, Highland, MI (US);
Michael S. Emmorey, Brighton, MI (US);
Jeffrey M. Kaiser, Highland, MI (US);
Robert C. Simon, Jr., Brighton, MI (US);
Cheryl A. Williams, Howell, MI (US);
Jon C. Wasberg, Davison, MI (US);
Eric Ferch, Northville, MI (US);
Craig M. Sawdon, Williamston, MI (US);
Abstract
An engine control system includes an air control module, a spark control module, a torque control module, a transient detection module, and a launch torque module. The air control module controls a throttle valve of an engine based on a commanded predicted torque. The spark control module controls spark advance of the engine based on a commanded immediate torque. The torque control module increases the commanded predicted torque when a catalyst light-off (CLO) mode is active, and increases the commanded immediate torque when a driver actuates an accelerator input. The transient detection module generates a lean transient signal when an air per cylinder increase is detected while the CLO mode is active. The launch torque module generates a torque offset signal based on the lean transient signal. The torque control module increases the commanded immediate torque based on the torque offset signal.