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:
Apr. 04, 2006
Filed:
Mar. 23, 2005
Michael J Prucka, Grass Lake, MI (US);
Michael a Bonne, Leonard, MI (US);
Alan G Falkowski, Lake Orion, MI (US);
Mark J Duty, Goodrich, MI (US);
Mark R. Mcelwee, Lake Orion, MI (US);
Michael J Prucka, Grass Lake, MI (US);
Michael A Bonne, Leonard, MI (US);
Alan G Falkowski, Lake Orion, MI (US);
Mark J Duty, Goodrich, MI (US);
Mark R. McElwee, Lake Orion, MI (US);
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Abstract
A process for enabling cylinder deactivation in a multiple displacement engine involving oil aeration includes detecting engine speed. Once the engine speed has been determined, a delay period is established prior to enabling cylinder deactivation. The delay period is a function of whether engine speed exceeds a preselected threshold and an amount by which the threshold is exceeded. When the delay period expires, a request is generated for cylinder deactivation.