公开(公告)号：US20160333803A1

公开(公告)日：2016-11-17

申请号：US14709921

申请日：2015-05-12

Applicant: GM Global Technology Operations LLC

Inventor： Jason T. DAVIS ,  Melvin R. TERECHENOK, JR. ,  Scott MCLANE ,  Sanjeev M. NAIK ,  Kurt Alfred WELLENKOTTER ,  Douglas R. VERNER ,  Joseph J. MOON ,  Kevin Andrew GADY

IPC: F02D13/02

CPC classification number: F02D13/08 ,  F01L13/0036 ,  F01L2001/0473 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2800/03 ,  F02D13/0207 ,  F02D41/042 ,  F02D41/221 ,  F02D2041/2055 ,  F02D2041/227 ,  Y02T10/18

Abstract: A system according to the principles of the present disclosure includes a switching period module and at least one of a valve lift control module and a start-stop control module. The switching period module determines a switching period that elapses as a valve lift actuator of an engine switches between a first valve lift position and a second valve lift position that is different than the first lift position. The switching period begins when a measured position of the valve lift actuator corresponds to the first lift position and the switching period ends when the measured position of the valve lift actuator corresponds to the second lift position. The valve lift control module controls the valve lift actuator based on the switching period. The start-stop control module determines whether to automatically stop the engine based on the switching period.

Abstract translation: 根据本公开的原理的系统包括切换周期模块和气门升程控制模块和启动 - 停止控制模块中的至少一个。 开关周期模块确定随着发动机的气门升程致动器在不同于第一升程位置的第一气门升程位置和第二气门升程位置之间切换的切换时段。 当阀提升致动器的测量位置对应于第一升程位置时，切换周期开始，并且当阀提升致动器的测量位置对应于第二提升位置时切换时段结束。 阀门升程控制模块根据切换周期控制气门升程执行器。 起动 - 停止控制模块基于切换期间来判定是否自动停止发动机。

公开(公告)号：US20170248043A1

公开(公告)日：2017-08-31

申请号：US15053591

申请日：2016-02-25

Applicant: GM Global Technology Operations LLC

Inventor： Bradley R. KAAN ,  Domenic CERTO ,  Joseph J. MOON

IPC: F01L1/34 ,  F01L1/047

CPC classification number: F01L1/34 ,  F01L1/047 ,  F01L1/0532 ,  F01L1/267 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2013/001 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2820/03

Abstract: A camshaft assembly includes a base shaft including at least one lobe pack axially movably mounted on the base shaft, the lobe pack including a control groove therein. An actuator device includes a pin movably mounted to the actuator between a retracted position and an extended position for engaging with the control groove to cause axial movement of the lobe pack. The control groove includes a pin engagement region, a shifting region and an ejection region. The pin engagement region of the control groove has a first pair of sidewalls. The shifting region extends from the pin engagement region and has a second pair of sidewalls angled relative to the first pair of sidewalls and having a first portion with a varying groove width that varies relative to a groove width of the pin engagement region.

公开(公告)号：US20170114676A1

公开(公告)日：2017-04-27

申请号：US14921231

申请日：2015-10-23

Applicant: GM Global Technology Operations LLC

Inventor： Douglas R. VERNER ,  Kevin Andrew GADY ,  Scot A. DOUGLAS ,  Joseph J. MOON

IPC: F01L1/34 ,  F02D41/22 ,  F01L1/047

CPC classification number: F01L1/34 ,  F01L1/047 ,  F01L1/053 ,  F01L9/02 ,  F01L9/026 ,  F01L9/04 ,  F01L13/0036 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2201/00 ,  F01L2800/11 ,  F02D41/20 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/2093 ,  H03K17/6871 ,  Y02T10/142 ,  Y02T10/40

Abstract: An engine control module includes at least one high side driver connected to at least one intake camshaft actuator and at least one exhaust camshaft actuator. A plurality of low side drivers is connected to the at least one intake camshaft actuator and the at least one exhaust camshaft actuator. A sliding camshaft control module selectively actuates the at least one high side driver and the plurality of low side drivers based on a status associated with the at least one intake camshaft actuator and/or the at least one exhaust camshaft actuator.