Adaptive Control Device for Motor Systems

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Solution Overview

Problem

Existing motor control systems for mechanical systems like machine tools and robots face challenges in adapting to changing demands for adaptive control, as they require pre-installed communication controllers, limiting flexibility and increasing non-operation hours due to large-scale configuration changes.

Innovation Solution

A control device that generates a second command value based on sensor data, feedback data, and first command values, and transmits it to the numerical control device, allowing for adaptive control without the need for pre-installed communication controllers, and can be added or removed as needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If adaptive control is added to the mechanical system, then control accuracy is improved, but device complexity increases and configuration changes become large-scale

Engineering Contradiction:
Improvecontrol accuracyVSAvoidconfiguration complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a communication controller as an intermediary device between the host controller and motor control devices. This mediator handles adaptive control functions and sensor data processing, allowing the host controller to maintain its original configuration while enabling enhanced control capabilities through the intermediate layer.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The control system is segmented into distinct functional modules: the host controller for basic servo control, the communication controller for adaptive control and data management, and motor control devices for execution. This segmentation allows independent addition or modification of adaptive control functions without reconfiguring the entire system.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If communication controllers are pre-installed for adaptive control, then adaptability is improved, but device complexity and initial configuration requirements increase

Engineering Contradiction:
Improveadaptive control capabilityVSAvoidinitial configuration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The communication controller is designed as a dynamic, optional component that can be added or removed based on system requirements. The system architecture supports flexible configuration where adaptive control capabilities can be activated or deactivated without fundamental changes to the base mechanical system.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The communication controller serves multiple functions: it manages adaptive control operations, processes sensor data, communicates between different control devices, and can optionally be integrated into the system. This multi-functionality allows a single component to provide various capabilities without requiring separate dedicated devices for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If large-scale configuration changes are made to enable adaptive control, then adaptability is improved, but non-operation hours increase

Engineering Contradiction:
Improveadaptive control capabilityVSAvoidnon-operation hours
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The communication controller is designed with pre-configured communication protocols and interfaces that match standard host controllers and motor control devices. This preliminary preparation of communication standards and data formats allows for rapid integration without extensive configuration work or system shutdowns.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10599104B2Control device and motor control system
Publication Date: 2020.03.24 MITSUBISHI ELECTRIC CORP
  • US10599104B2 patent drawing
  • US10599104B2 patent drawing
  • US10599104B2 patent drawing

AI summary

An adaptive control device according to the present invention includes: a processor that generates a second command value for a motor on the basis of at least one of a first command value received from a numerical control device, feedback data received from a motor control device that controls the motor on the basis of the first command value, and sensor data received from a sensor; and a communication circuit that transmits the second command value to the numerical control device.