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:
Jan. 01, 2013
Filed:
Apr. 22, 2010
Andrew W. Baur, Flushing, MI (US);
Michael J. Pitsch, Ann Arbor, MI (US);
Christopher E. Whitney, Commerce, MI (US);
Andrew W. Baur, Flushing, MI (US);
Michael J. Pitsch, Ann Arbor, MI (US);
Christopher E. Whitney, Commerce, MI (US);
Abstract
An engine control system includes an inertia phase detection module, a feed-forward (FF) engine speed module, a FF APC module, a FF phaser position module, and a phaser control module. The inertia phase detection module determines when an inertia phase of a gear shift is occurring within a transmission. The FF engine speed module predicts an engine speed for a future time when the inertia phase ends. The FF APC module predicts an air-per-cylinder (APC) for the future time based on the engine speed. The FF phaser position module determines a FF phaser position based on the engine speed and the APC. The phaser control module controls a camshaft phaser position based on the FF phaser position during the inertia phase of the gear shift.