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Patent Searching and Data


Title:
SHIFT RANGE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2019116921
Kind Code:
A
Abstract:
To provide a shift range control device which can accurately stop a motor.SOLUTION: An angle calculation part 51 calculates an encode count value θen being a rotation angle of a motor 10 on the basis of a detection value of an encoder 13. A speed calculation part 52 calculates a motor rotation number N on the basis of a detection value of the encoder 13. A drive control part 55 starts the drive of the motor 10 when a target shift range is switched, and when the encoder count value θen reaches a fixed phase electricity-carrying start position, stops the motor 10 by fixed phase electricity-carrying control for continuing electricity-carrying to the same phase. The drive control part 55 sets a fixed electricity-carrying phase being an electricity-carrying phase at the fixed phase electricity-carrying control according to the motor rotation number N when the encoder count value θen reaches the fixed phase electricity-carrying start position. By this constitution, the motor 10 can be accurately stopped at a target position.SELECTED DRAWING: Figure 2

Inventors:
MIYANO HARUKA
SAKAGUCHI KOJI
Application Number:
JP2017250567A
Publication Date:
July 18, 2019
Filing Date:
December 27, 2017
Export Citation:
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Assignee:
DENSO CORP
International Classes:
F16H61/32; H02P3/24; H02P29/00
Attorney, Agent or Firm:
Hattori Masaki