Motor Control Parameter Tuning With Stability Index Mapping
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Solution Overview
Problem
Existing motor control device parameter setting techniques often require extensive trial and error, leading to instability and inefficiency, especially for users with insufficient knowledge in gain adjustment, as they struggle to balance control performance and stability without proper guidance.
Innovation Solution
A setting assistance device that calculates and displays recommended parameter values for velocity proportional gain, integral gain, and position proportional gain, providing a visual representation of their relationship with control performance and stability indices, allowing users to set optimal values even with limited expertise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large number of buttons are arranged on the main body of the portable device, then more functions can be operated, but the external appearance becomes ugly and the device cannot be held comfortably
Solution Approach 1:
The patent divides the control interface into two segments: essential functions are integrated into the main body with minimal buttons, while additional functions are relocated to a detachable strap unit. This segmentation allows the main body to remain compact and comfortable for holding, while the strap provides access to extended functionality when needed.
2Adaptability or versatility
If a large number of buttons are arranged on the main body of the portable device, then more functions can be operated, but the external appearance becomes ugly
Solution Approach 1:
By separating the button interface from the main body and placing it on a detachable strap, the patent preserves the clean, aesthetic design of the main body while still providing access to multiple functions through the strap-mounted buttons.
3Ease of operation
If the strap is made long to wrap around the wrist, then it can be worn comfortably, but it cannot be put into a purse or pocket when not in use
Solution Approach 1:
The strap incorporates an expandable structure that can dynamically adjust its length. When worn, it extends to the appropriate length for comfortable wrist wrapping. When not in use, it can be contracted or folded to a compact size that fits into purses or pockets.
Data Source
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AI summary
This setting assistance device comprises: an index value calculation unit that calculates a first evaluation index value which indicates the control performance or stability of motor control by a motor control device in each of a plurality of conditions in which the combination of values of a first parameter and a second parameter that are set in the motor control device is different; a recommended value calculation unit that calculates, on the basis of the calculated first evaluation index value in each condition, a recommended value for the first parameter and a recommended value for the second parameter; and a recommended value display unit that displays, on a display, the recommended value for the first parameter and the recommended value for the second parameter together with information indicating a relationship between the combination of the values of the first parameter and the second parameter and the first evaluation index value. Due to this configuration, the parameter values of the motor control device can be satisfactorily set even by a user having insufficient knowledge regarding gain adjustment.