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公开(公告)号：US20180283236A1
公开(公告)日：2018-10-04
申请号：US15475654
申请日：2017-03-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Douglas R. VERNER , Scot A. DOUGLAS
CPC classification number: F01L13/0036 , F01L2013/0052 , F01L2013/101 , F01L2101/00
Abstract: A method for retracting an extended pin of a sliding camshaft actuator wherein the actuator includes a magnetic field generating coil, a magnetic piston in connection with the extended pin operable to be actuated by the magnetic field generating coil, and a pin stop plate. The method comprises creating an air gap between the magnetic piston and the pin stop plate and reversing voltage on the magnetic field generating coil to retract the extended pin.
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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
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.
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公开(公告)号：US20180283227A1
公开(公告)日：2018-10-04
申请号：US15472408
申请日：2017-03-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Scot A. DOUGLAS , Douglas R. VERNER
CPC classification number: F02D13/0223 , F01L1/053 , F01L1/185 , F01L13/0036 , F01L2001/0537 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , F01L2820/02 , F01L2820/041 , F02D13/0207
Abstract: A method for retracting a partially extended pin of a sliding camshaft actuator having first and second pins being selectively actuatable by adjacent first and second magnetic field generating coils includes determining if the first or the second pin is partially extended after engine ignition. A partially extended first pin is retracted with flux linkage created by the second magnetic field generating coil being coupled unto the first magnetic field generating coil, and a partially extended second pin is retracted with flux linkage created by the first magnetic field generating coil being coupled unto the second magnetic field generating coil.
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公开(公告)号：US20140121944A1
公开(公告)日：2014-05-01
申请号：US13716921
申请日：2012-12-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Scot A. DOUGLAS , Jonathan T. SHIBATA
IPC: F02D45/00
CPC classification number: F02D45/00 , F02D41/0025 , F02D41/0027 , F02D41/064 , F02D41/3845
Abstract: A control system includes a starter control module, a mode setting module, a fuel pressure control module, and a fuel control module. The starter control module initiates cranking of a spark ignition direct injection (SIDI) engine in response to user actuation of an ignition switch. The mode setting module sets a mode of operation to a cold start mode when an engine coolant temperature is less than a predetermined temperature during the cranking. The fuel pressure control module, in response to the setting of the mode to the cold start mode, determines a target fuel rail pressure. The fuel control module controls fueling during the cranking based on the target fuel rail pressure.
Abstract translation: 控制系统包括起动器控制模块，模式设定模块，燃料压力控制模块和燃料控制模块。 启动控制模块响应于用户启动点火开关启动火花点火直喷（SIDI）发动机的起动。 在起动期间，当发动机冷却剂温度小于预定温度时，模式设定模块将操作模式设定为冷启动模式。 燃料压力控制模块响应于对冷起动模式的模式的设定，确定目标燃料轨压力。 燃料控制模块基于目标燃料轨压力来控制起动期间的加油。
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