公开(公告)号：US20150096533A1

公开(公告)日：2015-04-09

申请号：US14506035

申请日：2014-10-03

Applicant: DENSO CORPORATION

Inventor： Satoru HIRAMOTO ,  Toru SHIMIZU ,  Yoshiyuki KONO

IPC: F02D41/22 ,  F02D41/02 ,  F02D41/14 ,  F02D41/00

CPC classification number: F02D41/222 ,  F02D11/106 ,  F02D41/0002 ,  F02D41/021 ,  F02D41/1497 ,  F02D2011/102 ,  F02D2041/223 ,  F02D2200/0402 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  Y02T10/42

Abstract: An ECU loads detected values of a rotation angle sensor and a pressure sensor which are mounted to an electric throttle, and executes an abnormal-sensor determination control to determine whether one of the rotation angle sensor and the pressure sensor is abnormal. Specifically, the ECU determines that one of the rotation angle sensor and the pressure sensor is abnormal, in a case where a state that a tendency of the actual opening angle detected by the rotation angle sensor does not match a tendency of the pressure detected by the downstream pressure sensor has continued for a period greater than or equal to a predetermined period. Therefore, since the pressure sensor can replace the rotation angle sensor used for detecting abnormality in a conventional technology, two rotation angle sensors can be reduced to one rotation angle sensor, and a cost is reduced.

Abstract translation: ECU加载安装在电动节气门上的旋转角度传感器和压力传感器的检测值，并执行异常传感器判定控制，以确定旋转角度传感器和压力传感器中的一个是否异常。 具体而言，在由旋转角度传感器检测到的实际开度的倾向与由所述旋转角度传感器检测到的压力的趋势不一致的情况下，ECU判断为旋转角度传感器和压力传感器中的一个异常 下游压力传感器持续大于或等于预定周期的时间。 因此，由于压力传感器能够代替传统技术中用于检测异常的旋转角度传感器，所以可以将两个旋转角度传感器减小到一个旋转角传感器，并降低成本。

公开(公告)号：US20180274452A1

公开(公告)日：2018-09-27

申请号：US15763287

申请日：2016-09-07

Applicant: DENSO CORPORATION

Inventor： Satoru HIRAMOTO ,  Osamu SHIMANE ,  Ju Hwan BAE

IPC: F02D9/10

CPC classification number: F02D9/107 ,  F02D9/10 ,  F02D9/1005 ,  F02D9/106 ,  F16K1/224 ,  Y02T10/42

Abstract: A fixing shaft portion of a valve shaft is fixed to a throttle valve at first and second locations by first and second fixing members. A first bearing includes an inner race fixed to a first rotatable shaft portion of the valve shaft, and an outer race fixed to a valve body. A second bearing includes a slidable portion axially slidably fitted to a second rotatable shaft portion of the valve shaft and a fixing portion fixed to the valve body. A linear expansion coefficient of the throttle valve and a linear expansion coefficient of the valve body are set to be larger than a linear expansion coefficient of the valve shaft in an axial direction. A first distance measured from a center point of the throttle valve to the first location is larger than a second distance measured from the center point to the second location.

公开(公告)号：US20140060484A1

公开(公告)日：2014-03-06

申请号：US14012201

申请日：2013-08-28

Applicant: DENSO CORPORATION

Inventor： Satoru HIRAMOTO ,  Yasushi KAWANO ,  Yoshiyuki KONO

IPC: H02K7/116

CPC classification number: H02K7/116 ,  F02D11/10

Abstract: An electric actuator includes an electric motor, a gear deceleration device, a housing, and a motor attachment plate. The electric motor is configured to convert electric power into rotation output. The gear deceleration device is configured to decelerate the rotation output of the electric motor. The electric motor and the gear deceleration device are attached to the housing. The motor attachment plate is provided for the electric motor and is fixed to the housing. A first positioning hole, which is formed through the motor attachment plate, and a second positioning hole, which is provided for the housing coincide with each other in a state where the electric motor is attached to the housing.

Abstract translation: 电动执行器包括电动机，齿轮减速装置，壳体和电动机附接板。 电动机被配置为将电力转换成旋转输出。 齿轮减速装置被构造成使电动机的旋转输出减速。 电动机和齿轮减速装置安装在壳体上。 电动机安装板为电动机设置并固定在壳体上。 在电动机附接到壳体的状态下，通过马达安装板形成的第一定位孔和设置用于壳体的第二定位孔彼此重合。