Control method using continuous variable valve duration apparatus

    公开(公告)号:US09926858B2

    公开(公告)日:2018-03-27

    申请号:US14954849

    申请日:2015-11-30

    Abstract: A control method using a continuous variable valve duration apparatus implements a continuous variable valve duration apparatus which includes a wheel mounted on a camshaft and having a wheel key so as to control duration of an intake valve of an engine, a cam unit having a cam and a cam key, adapted such that the camshaft is inserted thereinto, and being disposed so as to vary relative phase of the cam with respect to the camshaft, an inner bracket connected with the wheel key and the cam key, a slider housing being adapted such that the inner bracket is rotatably inserted thereinto and disposed so as to move vertically with respect to the engine, a controller varying a position of the slider housing so as to adjust rotation center of the inner bracket, and a guide unit guiding motion of the sliding housing. The control method includes calculating a required air amount for maintaining idle rotation speed of the engine by the controller when the engine is an idle state; mapping a supplied air amount in accordance with duration of the intake valve or the exhaust valve by the controller; setting a target valve duration for supplying the required air amount of the engine by the controller; and controlling duration of the intake valve or exhaust valve according to the set target valve duration by the controller.

    Control method for exhaust gas recirculation of hybrid electric vehicle
    6.
    发明授权
    Control method for exhaust gas recirculation of hybrid electric vehicle 有权
    混合动力汽车排气再循环控制方法

    公开(公告)号:US09528457B2

    公开(公告)日:2016-12-27

    申请号:US14853536

    申请日:2015-09-14

    Abstract: A control method for exhaust gas recirculation of a hybrid electric vehicle includes detecting a pressure of an intake manifold. A difference between the pressure of the intake manifold and atmospheric pressure is determined. A load of an engine, which generates torque by combusting a fuel and external air supplied through the intake manifold, is determined. An opening rate of an exhaust gas recirculation valve is controlled to be a first value according to a rotational speed of the engine when the difference is smaller than or equal to a reference pressure and the load of the engine is smaller than or equal to a reference load.

    Abstract translation: 混合电动车辆的废气再循环的控制方法包括检测进气歧管的压力。 确定进气歧管的压力和大气压力之间的差。 确定通过燃烧燃料和通过进气歧管供应的外部空气产生扭矩的发动机负载。 当该差小于或等于参考压力并且发动机的负载小于或等于参考值时,排气再循环阀的打开速率被控制为根据发动机转速的第一值 加载。

    Variable valve lift apparatus
    7.
    发明授权
    Variable valve lift apparatus 有权
    可变气门举升装置

    公开(公告)号:US08899196B2

    公开(公告)日:2014-12-02

    申请号:US14055512

    申请日:2013-10-16

    CPC classification number: F01L1/34 F01L13/0036 F01L2013/0052

    Abstract: A variable valve lift apparatus may include a camshaft, a cam piece having first cams having lift amounts that are different formed at one side thereof, a first cam protrusion portion formed near the first cams that is slidably disposed on the camshaft to rotate with the camshaft, a first guide pin that protrudes on one side of an exterior circumference of the first cam protrusion portion, a first guide that is disposed to correspond to the first cam protrusion portion and in which a first guide groove is formed thereon to move the first cam piece in one direction along the camshaft according to the rotation of the first guide pin, and a first operation portion that moves the first guide toward the first cam protrusion portion such that the first guide pin is inserted into the first guide groove of the first guide.

    Abstract translation: 可变气门提升装置可以包括凸轮轴,凸轮件,其具有在其一侧形成有不同升程量的第一凸轮;第一凸轮突出部分,形成在第一凸轮附近,该第一凸轮可滑动地设置在凸轮轴上以与凸轮轴一起旋转 ,所述第一引导销在所述第一凸轮突出部的外周的一侧突出,所述第一引导件设置成与所述第一凸轮突出部相对应,并且其中形成有第一引导槽以移动所述第一凸轮 根据第一导销的旋转沿着凸轮轴沿一个方向分段;第一操作部,其使第一引导件朝向第一凸轮突出部移动,使得第一引导销插入到第一引导件的第一引导槽中 。

    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.

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