Title:
MOTOR CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2018182893
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a motor control device which can stop a movable body, driven by a DC motor, at an intended stop position.SOLUTION: A motor control device 1 includes: a drive signal generator unit 14 which outputs a drive signal according to a running torque generated by a DC motor 2; a speed measuring unit which measures the revolution speed of the DC motor 2, on the basis of a detection signal received from a rotation angle sensor 4 through a sensor interface unit 15; a brake value calculation unit which, based on a designated stop required time and a revolution speed, calculates the brake value of the drive signal to stop the DC motor 2 in the stop required time; a comparison unit which, when the calculated brake value is not larger than the upper limit value of a brake value, determines the brake value to be a use brake value, whereas when the calculated brake value exceeds the upper limit value, determines the upper limit value to be a use brake value; and a stop unit which causes the drive signal generator unit 14 to output the drive signal having the use brake value at least as long as the stop required time.SELECTED DRAWING: Figure 1
Inventors:
MIZUTANI MASAKI
IBUKI HIROYUKI
IBUKI HIROYUKI
Application Number:
JP2017078959A
Publication Date:
November 15, 2018
Filing Date:
April 12, 2017
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
H02P7/29; H02P3/08
Domestic Patent References:
| JPH0759389A | 1995-03-03 | |||
| JPH11164589A | 1999-06-18 | |||
| JP2014073024A | 2014-04-21 | |||
| JP2012215947A | 2012-11-08 |
Foreign References:
| WO2007007794A1 | 2007-01-18 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Koichi Itsubo
Tsutomu Kono
Jun Tsuruta
Koichi Itsubo
Tsutomu Kono