Invention Grant
US08836268B2 Position sensing device, rotational actuator having the same, shift-by-wire system having the rotational actuator, and method for detecting position of movable member
有权
位置检测装置，具有该旋转致动器的旋转致动器，具有旋转致动器的线控换档系统，以及用于检测可动构件的位置的方法
- Patent Title: Position sensing device, rotational actuator having the same, shift-by-wire system having the rotational actuator, and method for detecting position of movable member
- Patent Title (中): 位置检测装置，具有该旋转致动器的旋转致动器，具有旋转致动器的线控换档系统，以及用于检测可动构件的位置的方法
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Application No.: US13600286Application Date: 2012-08-31
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Publication No.: US08836268B2Publication Date: 2014-09-16
- Inventor: Takuya Yoshida
- Applicant: Takuya Yoshida
- Applicant Address: JP Kariya
- Assignee: Denso Corporation
- Current Assignee: Denso Corporation
- Current Assignee Address: JP Kariya
- Priority: JP2011-212527 20110928
- Main IPC: G05B1/06
- IPC: G05B1/06 ; H03M1/10 ; H03M1/64 ; G01D5/244
Abstract:
A pulse signal output unit sends three-phase pulse signals according to movement of the movable member. A counter unit adds a first predetermined value or a second predetermined value to a count value or subtracts the first predetermined value or the second predetermined value from the count value, according to a combination of the pulse signals appearing when all the pulse signals are normal and a combination of the pulse signals appearing when one of the pulse signals malfunctions. A position detection unit detects the position of the movable member according to the count value.
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