Control parameter automatic adjustment apparatus

• US 20030201745A1
• Filed: 09/20/2002
• Published: 10/30/2003
• Est. Priority Date: 04/25/2002
• Status: Active Grant

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Hayashi, Eiji
• Granted Patent: US 6,861,814 B2
• Time in Patent Office: Days
• US Class Current: 318/561
• CPC Class Codes: G05B 13/025 using a perturbation signal

Abstract

A control parameter automatic adjustment apparatus acquires a movable range of a drive shaft of a drive system, and automatically generates a test movement program to automatically adjust a control parameter to the drive system even though the movable range changes.

Claims

1. A control parameter automatic adjustment apparatus which adjusts a control parameter of a servo system including a drive system and a controller for controlling the drive system, the control parameter automatic adjustment apparatus comprising:

a parameter acquisition unit which acquires a parameter of the drive system;

a test movement program generator which generates a test movement program based on the acquired parameter;

an operation data acquisition unit which acquires information on how the drive system is operating when the drive system is operated using the test movement program;

an operation data analyzer which analyzes the obtained information; and

a parameter adjuster which adjusts the parameter of the controller based on a result of the analysis of the information.

2. The control parameter automatic adjustment apparatus according to claim 1, wherein the parameter acquisition unit acquires the parameter from the controller.

3. The control parameter automatic adjustment apparatus according to claim 1, further comprising a parameter input unit used by a user to input the parameter, wherein the parameter acquisition unit acquires the input parameter.

4. The control parameter automatic adjustment apparatus according to claim 1, wherein the information is response of the drive system, the control parameter automatic adjustment apparatus further comprising a parameter estimator which estimates the parameter based on the response, wherein the parameter acquisition unit acquires the parameter from the parameter estimator.

5. The control parameter automatic adjustment apparatus according to claim 1, wherein the parameter is a movable range of a drive shaft of the drive system.

6. The control parameter automatic adjustment apparatus according to claim 1, wherein the parameter is a mass of a drive shaft of the drive system.