On the basis of analysis on error model of ultra precision CNC machine tool, the variant gain cross coupling control algorithm is introduced into the servo control of ultra precision CNC machine tool.
文章在分析超精密数控机床误差模型的基础上，将变增益交叉耦合控制算法引入超精密数控机床的伺服控制。
Because cross-coupling control is advantageous to restricting and harmonizing between multi driving wheels, it can reduce orientation error and improve the accuracy of path tracking effectively.
由于交叉耦合控制利于多轮驱动之间的制约和协调，可以有效减少方向误差和提高路径跟踪的精确性。
As to the problem of tuning PID-CCC controller parameters, Cross-coupling fuzzy self-tuning based on CETF (contouring error transfer function) is proposed, which is robust to the parameters of plants.
针对通常PID -CCC控制器参数的整定困难问题，在轮廓误差传递函数(CETF)的基础上提出采用在线模糊CCC控制器参数自整定方法。
In consideration of the dynamic cooperation of the two axes, a variant gain cross-coupling-controller is designed to minimize contour error.
同时考虑两轴联动的动态配合，设计了变增益交叉耦合控制器，补偿轮廓误差。
By the solid example, reasons that measuring errors, because of minimal variation of cross-coupling matrix, are cleared, and methods for calculating the upper limit of error margin are described.
通过具体的计算实例，阐明了因耦合矩阵的摄动，引起测量误差上限的计算方法。
By the solid example, reasons that measuring errors, because of minimal variation of cross-coupling matrix, are cleared, and methods for calculating the upper limit of error margin are described.
通过具体的计算实例，阐明了因耦合矩阵的摄动，引起测量误差上限的计算方法。
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