Title:
SHIFT RANGE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2018040463
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shift range control device which can optimally control the drive of a motor related to the changeover of a shift range according to a temperature.SOLUTION: A feedback control part 60 of a shift range control device 40 performs feedback control based on an actual angle Cen of a motor and a motor speed Msp. A feedback value setting part 63 sets a feedback value so that a phase of the motor speed Msp is progressed on the basis of the motor speed Msp. A current correction part 84 estimates a motor temperature Hm on the basis of motor currents Im which are detected by current sensors 81, 82, and corrects a target motor speed Msp. By this constitution, in a high-temperature atmosphere, brake timing can be accelerated, and an overshoot can be suppressed. Furthermore, in a low-temperature atmosphere, the brake timing can be retarded, and the actual count value Cen can be easily set to a target value. Accordingly, the drive of the motor related to the changeover of the shift range can be optimally controlled according to the temperature.SELECTED DRAWING: Figure 4
Inventors:
KAMIO SHIGERU
Application Number:
JP2016176278A
Publication Date:
March 15, 2018
Filing Date:
September 09, 2016
Export Citation:
Assignee:
DENSO CORP
International Classes:
F16H61/32; H02P27/06; H02P29/20
Domestic Patent References:
| JP3886042B2 | 2007-02-28 | |||
| JP2009095101A | 2009-04-30 | |||
| JP2012184079A | 2012-09-27 | |||
| JP2001242904A | 2001-09-07 | |||
| JPH03107384A | 1991-05-07 | |||
| JP2004019804A | 2004-01-22 | |||
| JP2005106100A | 2005-04-21 |
Attorney, Agent or Firm:
Masaki Hattori