公开(公告)号：US20140116197A1

公开(公告)日：2014-05-01

申请号：US14060791

申请日：2013-10-23

Applicant: DENSO CORPORATION

Inventor： Yuuya TAKAHASHI ,  Yasuyoshi SUZUKI ,  Toshihiro TAKAHARA ,  Shinichi SUGIURA ,  Atsushi ITO

IPC: F16H53/02

CPC classification number: F16H25/14 ,  F01L1/08 ,  F01L13/00 ,  F01L13/0036 ,  F16H53/06 ,  Y10T74/2101

Abstract: A driving device has a driving cam driven by a motor around a cam shaft, a roller which is in contact with the driving cam, a supporting frame, and a control shaft. The driving cam has a pocket portion. At the pocket portion, a profile distance from a center increases or decreases when the driving cam rotates in a normal direction or a reverse direction. When the pocket portion is in contact with the roller and the motor is stopped, the rotational force of the driving cam becomes zero. The rotational position of the driving cam and the axial position of the control shaft are held at a constant position. Thereby, the rotary place of the driving cam and the axial position of the control shaft component can be held in a fixed position.

Abstract translation: 驱动装置具有由马达围绕凸轮轴驱动的驱动凸轮，与驱动凸轮接触的辊，支撑框架和控制轴。 驱动凸轮具有口袋部分。 在凹口部分，当驱动凸轮沿正向或相反方向旋转时，与中心的轮廓距离增加或减小。 当袋部与辊接触并且电动机停止时，驱动凸轮的旋转力变为零。 驱动凸轮的旋转位置和控制轴的轴向位置保持在恒定位置。 由此，可以将驱动凸轮的旋转位置和控制轴部件的轴向位置保持在固定位置。

公开(公告)号：US20140352637A1

公开(公告)日：2014-12-04

申请号：US14277101

申请日：2014-05-14

Applicant: DENSO CORPORATION

Inventor： Atsushi ITO ,  Ryozo KAYAMA ,  Shinichi SUGIURA ,  Yasuyoshi SUZUKI

IPC: F01L13/00

CPC classification number: F01L13/00 ,  F01L13/0063 ,  F01L2820/032

Abstract: An electric control device includes: a cam having a variable distance between an outer periphery and a center; a control shaft having one end, which contacts the outer periphery of the cam, and displaceable according to a rotation of the cam to adjust a valve lift amount; a motor rotating the cam; an angle detector detecting a rotation angle of the cam; and a controller. The cam includes multiple steps arranged on the outer periphery. The controller controls the rotation of the cam through the motor to match a detection angle of the angle detector with a target angle corresponding to a target valve lift amount. The controller stops rotating the cam through the motor when a difference between the detection angle and the target angle exceeds a first threshold, and the target angle corresponds to one of the steps.

Abstract translation: 电气控制装置包括：凸轮，其在外周和中心之间具有可变的距离; 控制轴，其一端与凸轮的外周接触，并且可根据凸轮的旋转而移位，以调节气门升程量; 旋转凸轮的电机 角度检测器检测凸轮的旋转角度; 和控制器。 凸轮包括设置在外周上的多个台阶。 控制器通过马达控制凸轮的旋转，以将角度检测器的检测角度与对应于目标气门升程量的目标角度相匹配。 当检测角度和目标角度之间的差超过第一阈值时，控制器停止通过马达旋转凸轮，并且目标角度对应于其中一个步骤。