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    Valve duration control apparatus and engine provided with the same
    2.
    发明授权
    Valve duration control apparatus and engine provided with the same 有权

    公开(公告)号：US10519818B2

    公开(公告)日：2019-12-31

    申请号：US14956013

    申请日：2015-12-01

    申请人： Hyundai Motor Company ,  Kia Motors Corporation

    发明人： Kyung Mo Kim ,  Kyoung Pyo Ha ,  You Sang Son

    IPC分类号： F01L1/26 ,  F01L1/053 ,  F01L1/18

    摘要： A continuous variable valve duration system may include a camshaft, a first cam portion including a first cam, into which the camshaft is inserted and of which a relative phase angle of the first cam with respect to the camshaft is variable, a rocker shaft disposed parallel to the camshaft, a first rocker arm rotatably disposed to the rocker shaft of which a first end contacts with the first cam and a second end is connected to a first valve, an inner bracket to transmit rotation of the camshaft to the first cam portion, a slider housing into which the inner bracket is rotatably inserted, on which a control hole is formed and on which a guide portion is formed for guiding movement of the slider housing, an eccentric shaft inserted into the control hole, and a control portion to selectively rotate the eccentric shaft.

    Method for controlling of valve timing of continuous variable valve duration engine
    3.
    发明授权
    Method for controlling of valve timing of continuous variable valve duration engine 有权

    公开(公告)号：US10323585B2

    公开(公告)日：2019-06-18

    申请号：US15839581

    申请日：2017-12-12

    申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

    发明人： In Sang Ryu ,  Kyoung Pyo Ha ,  You Sang Son ,  Kiyoung Kwon

    IPC分类号： F02D41/00 ,  F02D13/02 ,  F01L1/047 ,  F01L1/34 ,  F01L13/00 ,  F01L1/344 ,  F02D41/14 ,  F01L1/053

    摘要： A method for controlling valve timing for an engine includes: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve and controlling an exhaust valve to limit a valve overlap in a first region; controlling the intake valve and the exhaust valve to maintain the maximum duration in a second region; advancing an intake valve closing (IVC) timing and an exhaust valve closing (EVC) timing in a third region; approaching the IVC timing to a bottom dead center (BDC) in a fourth region; controlling a throttle valve to be fully opened, advancing an intake valve opening (IVO) timing before a top dead center (TDC), and controlling the IVC timing to be a predetermined value after the BDC in a fifth region; and controlling the throttle valve to be fully opened and advancing the IVC timing in a sixth region.

    Multiple variable valve lift apparatus
    6.
    发明授权
    Multiple variable valve lift apparatus 有权

    公开(公告)号：US10436080B2

    公开(公告)日：2019-10-08

    申请号：US15833405

    申请日：2017-12-06

    申请人： Hyundai Motor Company ,  Kia Motors Corporation

    发明人： Soo Hyung Woo ,  Jin Wook Son ,  You Sang Son ,  Seung Kook Han ,  Back Sik Kim ,  Wootae Kim

    IPC分类号： F01L1/34 ,  F01L13/00 ,  F01L1/053 ,  F01L1/18

    摘要： A multiple variable valve lift apparatus may include a moving cam formed of a hollow cylindrical shape, configured to be moveable in an axial direction of a camshaft while being rotated with the camshaft, and forming a plurality of cams implementing a cam guide protrusion device and different valve lifts from each other; an operation device selectively guiding a cam guide protrusion device to move the moving cam in the axial direction of the camshaft; a controller configured for controlling an operation of the operation device; a valve opening/closing device in contact with any one cam among the plurality of cams; a plurality of stopper grooves formed at an external circumference of the camshaft; and a stopper device provided at the moving cam and inserted to the stopper groove to be rotated at a position after the moving cam is moved.