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    Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic
    35.
    发明公开
    Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic 有权
    Variabler Ventilrieb einer Brennkraftmaschine zum variieren der Ventilhubcharakteristik

    公开(公告)号：EP1300551A2

    公开(公告)日：2003-04-09

    申请号：EP02022106.5

    申请日：2002-10-02

    申请人： NISSAN MOTOR COMPANY, LIMITED

    发明人： Nohara, Tsuneyasu ,  Sugiyama, Takanobu ,  Takemura, Shinichi

    IPC分类号： F01L13/00

    CPC分类号： F01L13/0026 ,  F01L13/0021 ,  F01L2013/0073

    摘要： In an engine employing a variable lift and working angle control mechanism enabling both a valve lift and a working angle of an intake valve to be continuously simultaneously varied depending on engine operating conditions, the control mechanism includes at least a rocker arm and a control shaft (12) formed integral with an eccentric cam. The valve lift characteristic of the control mechanism varies by changing an angular position of the control shaft. A control-shaft position sensor (14) has a directivity for the sensor output error occurring owing to a change in relative position between the control shaft center and the position sensor. The error becomes a minimum value in a specified direction of relative position change. The specified direction of relative position change is set to be substantially identical to a direction of a line of action of load acting on the center of the control shaft (12) during idling.

    摘要翻译： 在采用可变升程和工作角度控制机构的发动机中，所述控制机构至少包括摇臂和控制轴（其中，所述可变升程和工作角度控制机构能使气门升程和进气门的工作角度根据发动机的运行条件不断同时变化） 12）与偏心凸轮形成一体。 控制机构的气门升程特性通过改变控制轴的角度位置而变化。 控制轴位置传感器（14）具有由于控制轴中心和位置传感器之间的相对位置的变化而产生的传感器输出误差的方向性。 误差成为相对位置变化指定方向的最小值。 相对位置变化的指定方向被设定为与空转期间作用在控制轴（12）的中心上的载荷作用线的方向基本相同。

    Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic and phase
    36.
    发明公开
    Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic and phase 有权
    内燃机的可变气门操作系统能够改变气门升程特性和相位

    公开(公告)号：EP1288453A2

    公开(公告)日：2003-03-05

    申请号：EP02018212.7

    申请日：2002-08-20

    申请人： NISSAN MOTOR COMPANY, LIMITED

    发明人： Takemura, Shinichi ,  Nohara, Tsuneyasu

    IPC分类号： F01L13/00

    CPC分类号： F01L13/0026 ,  F01L13/0021 ,  F01L2013/0073

    摘要： In an internal combustion engine employing a variable lift and working angle control mechanism (1) and a variable phase control mechanism (21), a first sensor (14) is provided to detect an actual control state of the variable lift and working angle control mechanism every sampling time intervals. Also provided is a second sensor (16) that detects an actual control state of the variable phase control mechanism every sampling time intervals. At least one of the sampling time interval for the first sensor and the sampling time interval for the second sensor has a characteristic that the one sampling time interval varies relative to the engine speed. A rate of change in the sampling time interval for the first sensor with respect to the engine speed is different from a rate of change in the sampling time interval for the second sensor with respect to the engine speed.

    摘要翻译： 在采用可变升程和工作角度控制机构（1）和可变相位控制机构（21）的内燃机中，设置第一传感器（14）以检测可变升程和工作角度控制机构 每个采样时间间隔。 还提供了第二传感器（16），其每个采样时间间隔检测可变相位控制机构的实际控制状态。 第一传感器的采样时间间隔和第二传感器的采样时间间隔中的至少一个具有一个采样时间间隔相对于发动机速度变化的特性。 第一传感器的采样时间间隔相对于发动机速度的变化率不同于第二传感器的采样时间间隔相对于发动机速度的变化率。