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:
Nov. 22, 2005
Filed:
Dec. 01, 2004
Michael Livshiz, Ann Arbor, MI (US);
Jeffrey M. Kaiser, Highland, MI (US);
Richard H. Clutz, Howell, MI (US);
Donovan L. Dibble, Utica, MI (US);
Bahram Younessi, Farmington, MI (US);
Gregory J. York, Fenton, MI (US);
Kevin J. Storch, Brighton, MI (US);
Timothy J. Braman, Williamston, MI (US);
Michael Livshiz, Ann Arbor, MI (US);
Jeffrey M. Kaiser, Highland, MI (US);
Richard H. Clutz, Howell, MI (US);
Donovan L. Dibble, Utica, MI (US);
Bahram Younessi, Farmington, MI (US);
Gregory J. York, Fenton, MI (US);
Kevin J. Storch, Brighton, MI (US);
Timothy J. Braman, Williamston, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A torque control system for regulating operation of a displacement on demand engine that is operable in an activated mode and a deactivated mode includes a throttle that regulates air flow into the engine and a cam phaser that regulates a torque output of the engine. A first module determines a throttle area based on a desired deactivated manifold absolute pressure (MAP) and a desired mass air flow (MAF) and a second module determines a desired cam phaser position based on an engine speed and a transitional air per cylinder (APC) that is determined based on one of a desired deactivated APC and desired activated APC. A third module generates a throttle control signal to control the throttle based on the throttle area and a fourth module generates a cam phaser control signal to control the cam phaser based on the desired cam phaser position.