SHIFT RANGE CONTROL DEVICE

WIPO Patent Application WO/2018/047924

A1

A shift range switching device (40) that: controls the driving of a motor (10) and thereby switches shift range; and comprises a feedback control unit (60), a fixed-phase electrification control unit (70), and a switching control unit (75). The feedback control unit (60) performs feedback control that is based on the actual angle of the motor (10) and on a motor speed that is the rotational speed of the motor (10). The fixed-phase electrification control unit (70) performs fixed-phase electrification control that causes electrification at a fixed phase that is selected in accordance with the actual angle. The switching control unit (75) switches the control state of the motor (10). The switching control unit (75) sets the control state to feedback control when requested shift range has been switched. When an angle deviation that is the deviation between the actual angle and a target angle that is decided in accordance with the requested shift range is at or below an angle determination threshold, the switching control unit (75) switches the control state from feedback control to fixed-phase electrification control.

JPS61119867	ACTUATOR
JPS59159450	CHANGE-CAM TYPE SPEED CHANGE GEAR
JP6874674	Shift range controller

KAMIO SHIGERU (JP)

PCT/JP2017/032366

March 15, 2018

September 07, 2017

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DENSO CORP (JP)

F16H61/32; H02P3/06; H02P3/24; H02P6/08

JP3886042B2	2007-02-28
JP2013188135A	2013-09-19
JP2004019804A	2004-01-22
JP2005106100A	2005-04-21

HATTORI Masaki (JP)

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