一种基于动态主从权重分配的龙门双驱控制方法

By using a dynamic master-slave weight allocation method, the master-slave relationship of the motors is adjusted in real time, which solves the synchronization error problem caused by the center of gravity offset of the gantry dual-drive platform, improves the synchronization accuracy and motion stability, and avoids mechanical damage.

CN121785103BActive Publication Date: 2026-07-17GUANGDONG UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Filing Date
2026-01-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing gantry dual-drive motion platforms suffer from nonlinear load torque distribution due to center of mass shift during high-speed motion, leading to problems such as synchronization errors causing mechanical resonance and guide rail deformation. Existing master-slave control methods have failed to effectively address the insufficient decoupling capability of dynamic load characteristics and multi-source disturbances.

Method used

By adopting a dynamic master-slave weight allocation method, and constructing an error dynamics model and PID closed-loop control, the master-slave relationship of the motor is adjusted in real time to compensate for the asymmetrical load disturbance caused by the centroid offset, thereby improving the synchronization accuracy of the motor.

Benefits of technology

It effectively avoids the impact and vibration caused by discontinuous switching, improves the synchronization accuracy of dual motors, prevents guide rail deformation and mechanical breakage, and improves the stability and accuracy of motion control.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121785103B_ABST
    Figure CN121785103B_ABST
Patent Text Reader

Abstract

本发明涉及智能控制技术领域,尤其涉及一种基于动态主从权重分配的龙门双驱控制方法,包括构建以主从权重因子计算的动态主从运动控制的综合误差模型,构建双驱平台的误差动力学模型;设定误差动力学模型的估计参数的初始值,设定电机Y1和电机Y2的主从权重因子初始值;计算PID闭环控制的输出值;之后基于PID闭环控制对误差动力学模型进行参数估计,更新估计参数;基于误差动力学模型计算被动力的估计值和记录主动力;分别计算横梁和动平台整体质心位置;之后更新主从权重因子;重复更新直至闭环运动结束。采用动态主从权重分配方法连续调整Y轴双电机的主从关系,主动补偿因质心偏移导致的不对称负载扰动,有效提升双电机同步精度。
Need to check novelty before this filing date? Find Prior Art