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. 15, 2011
Filed:
Jul. 24, 2008
Kenneth J. Cinpinski, Ray, MI (US);
Donovan L. Dibble, Utica, MI (US);
Alexander J. Roberts, Commerce Township, MI (US);
Vimesh M. Patel, Novi, MI (US);
Kenneth J. Cinpinski, Ray, MI (US);
Donovan L. Dibble, Utica, MI (US);
Alexander J. Roberts, Commerce Township, MI (US);
Vimesh M. Patel, Novi, MI (US);
Abstract
A system for controlling a variable valve lift system of an engine comprises a delay module that estimates a total delay based on at least one of a measured and an estimated delay of the variable valve lift system. A variable valve control module commands one of a first transition from a variable valve low-lift profile to a variable valve high-lift profile and a second transition from a variable valve high-lift profile to a variable valve low-lift profile based on the total delay.