System and method for controlling valve timing of continuous variable valve duration engine

    公开(公告)号:US10316763B2

    公开(公告)日:2019-06-11

    申请号:US15258154

    申请日:2016-09-07

    Abstract: A method for controlling valve timing of a turbo engine may include: classifying by a controller control regions depending on an engine speed and an engine load, and the control regions may include first, second, third, fourth, fifth, and sixth control regions. The method further includes: applying a maximum duration to an intake valve and controlling a valve overlap in the first control region; applying the maximum duration to the intake valve and exhaust valve in the second control region; advancing an intake valve closing (IVC) timing and an exhaust valve closing (EVC) timing in the third control region; approaching the IVC timing to a bottom dead center in a fourth control region; controlling a wide open throttle valve (WOT) in the fifth control region; and controlling the WOT and the IVC timing to reduce the knocking in the sixth control region.

    Method for controlling of valve timing of continuous variable valve duration engine

    公开(公告)号:US10047684B2

    公开(公告)日:2018-08-14

    申请号:US15258062

    申请日:2016-09-07

    Abstract: A method for controlling valve timing is provided for an engine including continuous variable duration (CVVD) device disposed on both intake valve and exhaust valve sides respectively. The method may include: classifying control regions into first, second, third, fourth, and fifth control regions based on engine load and speed; applying a maximum duration to an intake valve and controlling a valve overlap in a first control region, applying the maximum duration to the intake valve and exhaust valve in the second control region; controlling a manifold absolute pressure (MAP) of an intake manifold to be maintained consistently in the third control region; controlling a throttle valve to be fully opened, advancing an intake valve closing (IVC) timing, and controlling an exhaust valve closing (EVC) timing to after top dead center in the fourth control region; and controlling a wide open throttle valve (WOT) and retarding the intake valve closing in the fifth control region.

    Continuous variable valve duration apparatus and engine provided with the same
    30.
    发明授权
    Continuous variable valve duration apparatus and engine provided with the same 有权
    连续可变气门持续时间设备和与其配套的发动机

    公开(公告)号:US09512748B2

    公开(公告)日:2016-12-06

    申请号:US14559762

    申请日:2014-12-03

    Abstract: A continuous variable valve duration apparatus includes a camshaft. A slider, which is mounted to the camshaft, has a camshaft sliding key and a cam portion of which a cam and a cam sliding key are formed thereto. The camshaft is inserted into the cam portion, and a relative phase between the cam and the camshaft is variable. A roller ring is connected with the camshaft sliding key and the cam sliding key. The roller ring is rotatably inserted into a roller ring guider, and the roller ring guider slidably inserted into a cylinder head. A control portion selectively changes a position of the roller ring guider to control a rotation center position of the roller ring.

    Abstract translation: 连续可变气门持续时间装置包括凸轮轴。 安装在凸轮轴上的滑块具有凸轮轴滑动键和凸轮部分,凸轮和凸轮滑动键形成在凸轮轴上。 凸轮轴插入到凸轮部分中,并且凸轮和凸轮轴之间的相对相位是可变的。 滚轮环与凸轮轴滑动键和凸轮滑动键连接。 滚轮环可旋转地插入滚轮导环中,并且滚子环导向件可滑动地插入到气缸盖中。 控制部选择性地改变滚子环导向器的位置,以控制滚子环的旋转中心位置。

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