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公开(公告)号：US09920665B2
公开(公告)日：2018-03-20
申请号：US14724316
申请日：2015-05-28
发明人： Kiyoung Kwon , Ingee Suh , Kyoung Pyo Ha , In Sang Ryu , Back Sik Kim
CPC分类号： F01L13/0015 , F01L1/0532 , F01L1/356 , F01L13/0026 , F01L13/06 , F01L2001/0476 , F01L2001/0535 , F01L2013/0084 , F01L2800/00 , F01L2820/032 , F02D13/04
摘要： A control method using a continuous variable duration apparatus provided to adjust opening duration of an intake valve of an engine may include: setting a desired deceleration speed when a vehicle starts decelerating, determining a pumping loss by the engine that is required for the desired deceleration speed, setting desired duration for the required pumping loss by the engine, and controlling duration of the intake valve on the basis of the set desired duration.
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公开(公告)号：US09890670B2
公开(公告)日：2018-02-13
申请号：US14955952
申请日：2015-12-01
发明人： You Sang Son , Kyoung Pyo Ha , Back Sik Kim , Kiyoung Kwon
CPC分类号： F01L13/0015 , F01L1/18 , F01L1/185 , F01L1/2405 , F01L1/26 , F01L1/267 , F01L13/00 , F01L13/0026 , F01L13/0063 , F01L2013/0068 , F01L2013/0084 , F01L2105/00
摘要： A continuously variable valve lift apparatus may include a camshaft, a cam portion on which a cam is formed and into which the camshaft is inserted, a slider housing into which the cam portion is rotatably inserted and of which a position is rotatable around a pivot shaft, a control portion engaged with the slider housing and configured to selectively rotate the slider housing around the pivot shaft, an output portion rotatable around the pivot shaft, contacting the cam and onto which a valve shoe is formed, and a valve device contacting the valve shoe and driven by rotation of the cam.
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公开(公告)号：US09874154B2
公开(公告)日：2018-01-23
申请号：US15258148
申请日：2016-09-07
发明人： In Sang Ryu , Kyoung Pyo Ha , You Sang Son , Kiyoung Kwon
CPC分类号： F02D13/0215 , F01L1/053 , F01L1/344 , F01L13/0015 , F01L2001/0537 , F01L2001/34496 , F01L2013/111 , F01L2250/02 , F01L2800/00 , F02D13/0226 , F02D13/0261 , F02D2200/1002 , F02D2200/101 , Y02T10/18
摘要： A method for controlling valve timing of an engine includes: classifying control regions depending on an engine speed and an engine load, and applying a maximum duration to an intake valve and controlling a valve overlap in the first control region; advancing an intake valve closing (IVC) timing and applying the maximum duration to the exhaust valve in the second control region; advancing both the IVC timing and an exhaust valve closing (EVC) timing in the third control region; fixing an exhaust valve opening (EVO) timing and approaching the EVC timing to a top dead center (TDC) in the fourth control region; controlling a wide open throttle valve (WOT) and retarding the EVO timing in the fifth control region; and controlling the WOT, advancing the EVO timing, and approaching the EVC timing to the TDC in the sixth control region.
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公开(公告)号：US09874119B2
公开(公告)日：2018-01-23
申请号：US14941204
申请日：2015-11-13
发明人： Back Sik Kim , Kyoung Pyo Ha , In Sang Ryu , Ingee Suh , Kiyoung Kwon
CPC分类号： F01L13/0015 , F01L1/047 , F01L1/356 , F01L2001/0471 , F01L2013/0084
摘要： A continuous variable valve duration apparatus may include a camshaft mounted to a cylinder head, a plurality of wheels mounted to the camshaft, of which a wheel key is formed respectively, and disposed on each cylinder, a plurality of cam portions of which a cam and a cam key are formed respectively, of which the camshaft is inserted thereto, of which relative phase angles with respect to the camshaft are variable, and disposed on the each cylinder, a plurality of inner brackets connected with the each wheel key and the each cam key, a plurality of slider housings of which the each inner bracket is rotatably inserted thereto, and disposed movable up and down direction of an engine, a guide shaft connecting the plurality of slider housings and a control portion moving a position of the guide shaft for changing rotation centers of the inner brackets.
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