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    • 20. 发明申请
    • On demand adaptive control system
    • 自适应控制系统
    • US20040167659A1
    • 2004-08-26
    • US10373929
    • 2003-02-25
    • Jerry G. Scherer
    • G06F019/00
    • G05B19/4163G05B2219/49077G05B2219/49082G05B2219/49092
    • An adaptive control system and method for controlling the path feed rate to achieve a target spindle load during machine tool operations. The adaptive control system can provide load monitoring capability, which will actively monitor an incoming load signal from a spindle drive and determine if it exceeds warning and alarm levels. If the incoming load being monitored exceeds the set warning level, a warning output is asserted and maintained until the incoming load falls below the set warning level. If the incoming load exceeds the set alarm level, the alarm output and feed hold output are asserted and maintained until an adaptive controller reset is requested. Normal cutting operations cannot resume until the conditions that generated the alarm level are addressed. Adaptive control of machine tool operations is provided by monitoring of the incoming load and requesting feed rate changes based on a proportional integral derivative (PID) controller algorithm. The adaptive controller monitors the incoming load until an arming limit is exceeded, at which point the adaptive controller proceeds to run the PID control algorithm to calculate a new feed rate that will cause the incoming load to obtain the user requested value. An interface application allows the user to set and view registers and the input/output status of the adaptive controller. The adaptive control system can be fully integrated into the machine tool management system, or can be integrated with custom tool interfaces. The adaptive control system can also be operated using a manual interface provided to the operator with no connection to tooling data.
    • 一种用于在机床操作期间控制路径进给速率以实现目标主轴负载的自适应控制系统和方法。 自适应控制系统可以提供负载监控功能,主动监控来自主轴驱动器的输入负载信号,并确定其是否超出警告和报警级别。 如果正在监视的进入负载超过设定的警告级别,则警告输出被断言并保持,直到进入的负载低于设定的警告级别。 如果进入的负载超过设定的报警水平,则报警输出和进给保持输出被置位并保持,直到请求自适应控制器复位为止。 在寻址产生报警级别的条件之前,正常切割操作才能恢复。 通过监控进入的负载并根据比例积分微分(PID)控制器算法请求进给速率变化来提供机床操作的自适应控制。 自适应控制器监视进入的负载,直到超过了布防限制,此时自适应控制器继续运行PID控制算法,以计算将使进入的负载获得用户请求值的新的进给速率。 接口应用程序允许用户设置和查看自适应控制器的寄存器和输入/输出状态。 自适应控制系统可以完全集成到机床管理系统中,或者可以与定制工具接口集成。 自适应控制系统也可以使用提供给操作员的手动界面进行操作,而不与工具数据连接。