公开(公告)号：US20150000450A1

公开(公告)日：2015-01-01

申请号：US14317235

申请日：2014-06-27

Applicant: DENSO CORPORATION

Inventor： Yoshihiro YATOU ,  Kenji SHIMIZU

IPC: F16H61/02

CPC classification number: F16H59/105 ,  F16H2061/326 ,  Y10T74/2003

Abstract: A shift-by-wire controller is applied to a shift-by-wire system which switches a shift range of an automatic transmission by a driving force of a motor, and drives the motor according to an input signal. The shift-by-wire controller includes a position sensor, a position acquirement portion acquiring a switching edge corresponding to a position where the shift range is switched from the position sensor, an encoder detecting a rotational position of the motor, a determining portion determining whether the rotational position can be acquired as a present-position from the encoder, and a position determination portion. When the determining portion determines that the present-position cannot be acquired, the position determination portion drives the motor to switch the shift range, and determines a position of the motor based on the switching edge.

Abstract translation: 线控换档控制器被应用于通过马达的驱动力切换自动变速器的换档范围的线控换档系统，并且根据输入信号驱动马达。 线控换档控制器包括位置传感器，位置获取部分，其获取与从位置传感器切换移位范围的位置相对应的切换边缘，检测马达的旋转位置的编码器，确定部分是否确定 可以从编码器获取旋转位置作为当前位置，以及位置确定部。 当确定部分确定不能获取当前位置时，位置确定部分驱动电动机切换移动范围，并且基于切换边缘确定电动机的位置。