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. 30, 2013
Filed:
Oct. 26, 2009
Robert W. Riegel, Shelby Township, MI (US);
Yujiro Suwa, Commerce Township, MI (US);
Ronald M. Wozniak, Auburn Hills, MI (US);
Anthony L. Marks, Novi, MI (US);
Robert W. Riegel, Shelby Township, MI (US);
Yujiro Suwa, Commerce Township, MI (US);
Ronald M. Wozniak, Auburn Hills, MI (US);
Anthony L. Marks, Novi, MI (US);
Abstract
An engine control system for a vehicle includes a variable displacement module that deactivates N of M cylinders of an engine during a fuel management mode. N is an integer and M is an integer greater than 1. A spark control module generates a spark timing signal for the N cylinders based on a pre-dwell time and a fuel management dwell modifier during the fuel management mode. The spark control module reduces dwell time of the N cylinders during the fuel management mode based on the fuel management dwell modifier.