Invention Grant
US08689541B2 Valvetrain control method and apparatus for conserving combustion heat
有权
用于保存燃烧热的气门控制方法和装置
- Patent Title: Valvetrain control method and apparatus for conserving combustion heat
- Patent Title (中): 用于保存燃烧热的气门控制方法和装置
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Application No.: US13028522Application Date: 2011-02-16
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Publication No.: US08689541B2Publication Date: 2014-04-08
- Inventor: Mike M. McDonald , William C. Albertson
- Applicant: Mike M. McDonald , William C. Albertson
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: F01N3/00
- IPC: F01N3/00 ; F01N3/10

Abstract:
An engine control system includes a catalyst module and a cylinder module. The catalyst module determines a catalyst temperature. The cylinder module selectively switches operation of a first cylinder from a first engine cycle having four strokes to a second engine cycle having N times four strokes, based on the catalyst temperature, wherein N is an integer greater than one. A related method is also provided.
Public/Granted literature
- US20120204545A1 VALVETRAIN CONTROL METHOD AND APPARATUS FOR CONSERVING COMBUSTION HEAT Public/Granted day:2012-08-16
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