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:
May. 18, 2004
Filed:
May. 16, 2002
Applicant:
Inventors:
Allen B. Rayl, Waterford, MI (US);
William R. Aro, Detroit, MI (US);
Gregory Paul Matthews, West Bloomfield, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 1/702 ; F02P 5/15 ;
U.S. Cl.
CPC ...
F02D 1/702 ; F02P 5/15 ;
Abstract
An engine control system in a vehicle including a variable displacement internal combustion engine, an intake manifold coupled to the variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, and where the controller varies the spark for a reactivating cylinder during the transition from deactivation to reactivation.