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. 07, 2015
Filed:
Jul. 13, 2011
Hanho Yun, Oakland Township, MI (US);
Nicole Wermuth, Munich, DE;
Paul M. Najt, Bloomfield Hills, MI (US);
Jun-mo Kang, Ann Arbor, MI (US);
Barry L. Brown, Lake Orion, MI (US);
Hanho Yun, Oakland Township, MI (US);
Nicole Wermuth, Munich, DE;
Paul M. Najt, Bloomfield Hills, MI (US);
Jun-Mo Kang, Ann Arbor, MI (US);
Barry L. Brown, Lake Orion, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A method to control an internal combustion engine includes controlling the engine in a homogeneous charge compression ignition mode and depending upon the operating range of the engine operating both intake and exhaust valves with one of a high-lift profile or a low lift profile or the exhaust valves with a low-lift profile and the intake valves with a high-lift profile.