SYSTEM AND METHOD FOR CONTROLLING VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE

    公开(公告)号:US20170082037A1

    公开(公告)日:2017-03-23

    申请号:US14955445

    申请日:2015-12-01

    CPC classification number: F02D13/0211 F01L13/0015 F01L2013/111 Y02T10/18

    Abstract: A method for controlling valve timing of continuous variable valve duration engine may include continuous variable valve duration (CVVD) device and continuous variable valve timing (CVVT) device including determining target intake valve open (IVO) timing, target intake valve close (IVC) timing, target exhaust valve open (EVO) timing and target exhaust valve close (EVC) timing; determining target intake CVVD, target exhaust CVVD, target intake CVVT and target exhaust CVVT to satisfy the target IVO, IVC, EVO, and EVC timings; performing feedback control of the CVVD by learning minimum value of the CVVD and maximum value of the CVVD; performing feedback control of the CVVT based on profile information of the valve; and determining real IVO timing, real IVC timing, real EVO timing, and real EVC timing based on the feedback control of the CVVD and the feedback control of the CVVT.

    ASYMMETRY CDA ENGINE
    43.
    发明申请
    ASYMMETRY CDA ENGINE 有权
    不对称CDA发动机

    公开(公告)号:US20160108826A1

    公开(公告)日:2016-04-21

    申请号:US14858968

    申请日:2015-09-18

    Abstract: An asymmetry cylinder de-activation (CDA) engine provided with a first, a second, a third and a fourth cylinder of which CDA apparatuses are mounted thereto respectively may include a crankshaft connected with pistons of each cylinder through a first, a second, a third and a fourth cranking journal respectively, and a controller configured to control operations of the CDA apparatuses, in which phase differences between cranking journals according to firing order may include 90±10 degrees and 270±10 degrees.

    Abstract translation: 设置有分别安装有CDA装置的第一,第二,第三和第四气缸的不对称气缸去激活(CDA)发动机可以包括通过第一,第二,第二和第二气缸的每个气缸的活塞连接的曲轴 第三和第四起动轴颈,以及控制器,被配置为控制CDA装置的操作,其中根据点火顺序的起动轴颈之间的相位差可以包括90±10度和270±10度。

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

    公开(公告)号:US10100752B2

    公开(公告)日:2018-10-16

    申请号:US15340742

    申请日:2016-11-01

    Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling a valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) timing in a third control region; controlling the IVC timing to be close to bottom dead center (BDC) in a fourth control region; controlling a throttle valve to be fully opened and generating a scavenging phenomenon in a fifth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing to prevent knocking in a sixth control region.

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

    公开(公告)号:US10024244B2

    公开(公告)日:2018-07-17

    申请号:US14955445

    申请日:2015-12-01

    Abstract: A method for controlling valve timing of continuous variable valve duration engine may include continuous variable valve duration (CVVD) device and continuous variable valve timing (CVVT) device including determining target intake valve open (IVO) timing, target intake valve close (IVC) timing, target exhaust valve open (EVO) timing and target exhaust valve close (EVC) timing; determining target intake CVVD, target exhaust CVVD, target intake CVVT and target exhaust CVVT to satisfy the target IVO, IVC, EVO, and EVC timings; performing feedback control of the CVVD by learning minimum value of the CVVD and maximum value of the CVVD; performing feedback control of the CVVT based on profile information of the valve; and determining real IVO timing, real IVC timing, real EVO timing, and real EVC timing based on the feedback control of the CVVD and the feedback control of the CVVT.

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

    公开(公告)号:US09970339B2

    公开(公告)日:2018-05-15

    申请号:US15165550

    申请日:2016-05-26

    Abstract: A system and a method for controlling valve timing of a continuous variable valve duration engine that simultaneously controls duration and timing of the valve by mounting a continuous variable valve duration device on an intake of turbo engine and mounting a continuous variable valve timing device on an exhaust is disclosed. The method includes: classifying a plurality of control regions depending on engine speed and load; applying a maximum duration to an intake valve and limiting an overlap to an exhaust valve; applying the maximum duration to the intake valve and adjusting the overlap by using an exhaust valve close timing; advancing an intake valve close timing; approaching an intake valve close timing to bottom dead center; controlling a wide open throttle valve and controlling the intake valve close timing to after bottom dead center; and controlling the wide open throttle valve and advancing the intake valve close timing.

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