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. 14, 2015
Filed:
May. 02, 2011
Nicole Wermuth, Garching Bei Munchen, DE;
Paul M. Najt, Bloomfield Hills, MI (US);
Orgun A. Guralp, Ann Arbor, MI (US);
Hanho Yun, Oakland Township, MI (US);
Nicole Wermuth, Garching Bei Munchen, DE;
Paul M. Najt, Bloomfield Hills, MI (US);
Orgun A. Guralp, Ann Arbor, MI (US);
Hanho Yun, Oakland Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An internal combustion engine is configured to operate in a homogeneous-charge compression-ignition combustion mode. Operating the internal combustion engine includes determining an integrated thermal state parameter from an aggregation of engine environment factors. A feed-forward engine control scheme is executed to determine states for engine control parameters. The states for the engine control parameters correspond to a preferred combustion phasing responsive to an operator torque request and the integrated thermal state parameter. Operation of the internal combustion engine is controlled to achieve the preferred combustion phasing using the states for the engine control parameters.