IP Library Granted Patent US 10,476,409
Granted Patent B2
US 10,476,409 · App. 16/318,136 · Granted Nov 12, 2019

Synchronization control system and control device

Inventors: Ko Kosaka (Tokyo, JP); Bampei Kaji (Tokyo, JP)
Assignee: MITSUBISHI ELECTRIC CORPORATION
H02P5/56G05D3/12
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Quick Facts
Patent No.
US 10,476,409
App. No.
16/318,136
Granted
Nov 12, 2019
Kind
B2
Abstract

A synchronization control system includes: a first slave station; a second slave station; and a master station, wherein the master station includes: a first command data generating unit that generates the first command data; a feedback data filter that extracts and outputs a frequency component in a first frequency domain from feedback data; a command data filter that extracts and outputs a frequency component in a second frequency domain higher than the first frequency domain from the first command data; an adding unit that adds data output from the feedback data filter and data output from the command data filter, and outputs addition data that is a result of the addition; and a second command data generating unit that generates the second command data on the basis of the addition data.

Claims (22)

1. A synchronization control system comprising:

a first sub-controller to control a first driver;

a second sub-controller to control a second driver; and

a master controller to transmit first command data for causing the first driver to operate to the first sub-controller, and transmit second command data for causing the second driver to operate to the second sub-controller, wherein

the master controller includes:

first command data generating circuitry to generate the first command data;

a first filter to extract and output a frequency component in a first frequency domain from feedback data, the feedback data being a result of detection of an operation state of the first driver;

a second filter to extract and output a frequency component in a second frequency domain from the first command data, the second frequency domain being a domain of frequencies higher than the first frequency domain;

circuitry configured to add data output from the first filter and data output from the second filter, and output addition data, the addition data being a result of the addition; and

second command data generating circuitry to generate the second command data on the basis of the addition data, and

wherein the first filter is a low pass filter, the second filter is a high pass filter, and a time constant of the first filter and a time constant of the second filter are equal to each other.

2. The synchronization control system according to claim 1 , wherein

the first driver includes a first motor and a first mechanical device driven by the first motor,

the second driver includes a second motor and a second mechanical device driven by the second motor, and

the feedback data is a result of detection of an operation state of the first mechanical device.

3. A controller comprising:

first command data generating circuitry to generate first command data to be transmitted to a first sub-controller that controls a first driver, the first command data being command data causing the first driver to operate;

a first filter to extract and output a frequency component in a first frequency domain from feedback data, the feedback data being a result of detection of an operation state of the first driver;

a second filter to extract and output a frequency component in a second frequency domain from the first command data, the second frequency domain being a domain of frequencies higher than the first frequency domain;

circuitry configured to add data output from the first filter and data output from the second filter, and output addition data, the addition data being a result of the addition; and

second command data generating circuitry to generate second command data to be transmitted to a second sub-controller on the basis of the addition data, the second command data being command data causing a second driver controlled by the second sub-controller to operate,

wherein the first filter is a low pass filter, the second filter is a high pass filter, and a time constant of the first filter and a time constant of the second filter are equal to each other.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2019
From: KOSAKA, KO; KAJI, BAMPEI
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 048019/0441 →
Continuity (1)
Related Publication 20190238071A1 · Aug 1, 2019