US 11,955,917 B2
Motor control system, motor control apparatus, and motor control method
Toshinobu Kira, Kitakyushu (JP); Tadashi Okubo, Kitakyushu (JP); Isamu Matsumura, Kitakyushu (JP); Ryo Ota, Kitakyushu (JP); and Yu Katono, Kitakyushu (JP)
Assigned to KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu (JP)
Filed by KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu (JP)
Filed on Sep. 7, 2022, as Appl. No. 17/938,950.
Claims priority of application No. 2021-165769 (JP), filed on Oct. 7, 2021.
Prior Publication US 2023/0110855 A1, Apr. 13, 2023
Int. Cl. G05B 11/32 (2006.01); H02P 5/50 (2016.01); H02P 6/04 (2016.01)
CPC H02P 5/50 (2013.01) [H02P 6/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A motor control system comprising:
host control circuitry configured to generate a first control command;
a plurality of motor control apparatuses configured to control a plurality of motors, respectively, based on the first control command;
a sensor configured to detect position information of a mechanism element to be driven by one motor among the plurality of motors and configured to output the position information to one motor control apparatus among the plurality of motor control apparatuses which is configured to control the one motor among the plurality of motors; and
each of the plurality of motor control apparatuses corresponding to a corresponding motor among the plurality of motors and comprising:
information sharing circuitry configured to share the position information among the plurality of motor control apparatuses via data communication while the plurality of motor control apparatuses controls the plurality of motors, respectively, based on the first control command;
command conversion circuitry configured to convert the position information into a second control command based on correlation information between the position information and a position command to the corresponding motor; and
motor control circuitry configured to control the corresponding motor based on the second control command.