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    CONTROL DEVICE AND CONTROL METHOD FOR VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINES
    2.
    发明公开
    CONTROL DEVICE AND CONTROL METHOD FOR VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINES 有权
    变压缩比内燃机的控制装置和控制方法

    公开(公告)号：EP2884077A1

    公开(公告)日：2015-06-17

    申请号：EP13879443.3

    申请日：2013-06-03

    申请人： Nissan Motor Co., Ltd

    发明人： TANAKA, Yoshiaki ,  HIYOSHI, Ryosuke ,  TAKAGI, Yusuke ,  NAKAMURA, Katsutoshi

    IPC分类号： F02D15/02 ,  F02D45/00 ,  F01M9/06 ,  F01M11/12 ,  F02B75/04 ,  F02B75/32

    CPC分类号： F02D15/00 ,  F01M9/06 ,  F01M11/12 ,  F02B75/045 ,  F02B75/048 ,  F02D15/02 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/30

    摘要： There are provided a variable compression-ratio mechanism (20) capable of varying an engine compression ratio in accordance with a rotational position of a control shaft (24); a speed reducer (44) configured to reduce in speed a rotational power of an actuator and transmit the speed-reduced rotational power to the control shaft (24); and a speed-reducer accommodating case (43) accommodating the speed reducer (44). An input shaft of the speed reducer (44) which is connected to the actuator has a shaft center line extending along a horizontal direction, and at least a part of the input shaft is kept under a lubricating oil retained in the speed-reducer accommodating case (43). The input shaft of the speed reducer (44) is swung by a predetermined swing angle to avoid inadequate lubrication of the input shaft of the speed reducer (44), during an operating state where the engine compression ratio is maintained constant.

    摘要翻译： 提供了一种可变压缩比机构（20），其能够根据控制轴（24）的旋转位置改变发动机压缩比; 减速器（44），其构造成减速致动器的旋转动力并且将减速后的旋转动力传递到所述控制轴（24）;以及减速器 和收容减速器（44）的减速器收容箱（43）。 与致动器连接的减速器（44）的输入轴具有沿水平方向延伸的轴心线，并且输入轴的至少一部分保持在保持在减速器容纳壳体内的润滑油 （43）。 在发动机压缩比保持恒定的运行状态期间，减速器（44）的输入轴摆动预定的摆动角以避免减速器（44）的输入轴的润滑不足。