Servo Control Parameter Tuning Using Corrected Settling Time
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Solution Overview
Problem
Existing methods for adjusting control parameters of servo control devices are inefficient.
Innovation Solution
A parameter adjustment method that involves acquiring sensor data on position deviation, correcting it based on detected deviations, calculating settling time, and predicting control parameters to satisfy predetermined conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional parameter adjustment methods are used for servo control devices, then the adjustment process is simple, but the adjustment efficiency and accuracy are insufficient
Solution Approach 1:
The system performs preliminary actions by acquiring sensor data and correcting it based on position deviation before calculating settling time. This preliminary data preparation enables more accurate parameter prediction without requiring complex real-time calculations during the adjustment process itself.
Solution Approach 2:
The patent replaces traditional trial-and-error mechanical adjustment methods with a data-driven prediction system. By substituting manual parameter tuning with automated calculation based on corrected sensor data and settling time analysis, the system achieves higher efficiency and accuracy.
2Measurement precision
If settling time calculation is performed without sensor data correction, then the calculation process is faster, but the accuracy of control parameter prediction is insufficient
Solution Approach 1:
The system applies partial correction to sensor data by focusing only on the portion affected by position deviation after the movement ends. This selective correction approach improves settling time measurement accuracy without requiring complete reprocessing of all sensor data, thus minimizing time loss.
Solution Approach 2:
The patent extracts and corrects only the relevant portion of sensor data that contains position deviation information after movement completion. By separating and processing only the necessary data portion, the system achieves accurate settling time calculation without excessive processing time.
3Reliability
If control parameters are adjusted without accurate settling time calculation, then the adjustment process is quicker, but the servomotor performance optimization is insufficient
Solution Approach 1:
The system uses feedback from corrected sensor data about actual position deviation to predict optimal control parameters. This feedback mechanism ensures that parameter adjustments are based on accurate settling time measurements, improving servomotor reliability while maintaining adjustment speed through automated prediction.
Solution Approach 2:
The patent systematically changes control parameters based on predicted values derived from settling time calculations. By adjusting parameters such as position gain, velocity gain, and acceleration gain according to predicted optimal values, the system achieves reliable servomotor performance without excessive adjustment time.
Data Source
AI summary
To efficiently adjust a control parameter of a servo control device. The parameter adjustment method includes the following procedure. That is, acquiring sensor data that is time-series data of a position deviation that is a difference between a target position and an actual position of a driver and is detected using a sensor. Correcting the sensor data based on a position deviation detected using the sensor after a timing at which movement of the driver based on a position command for moving the driver to the target position has ended. Calculating a settling time from a timing at which the driver is located at the target position in the position command to a timing at which the driver reaches an allowable position.Predicting a control parameter such that the settling time calculated based on the corrected sensor data satisfies a predetermined condition.