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    • 64. 发明授权
    • Servo control system operable on digital basis
    • 伺服控制系统可以数字化操作
    • US4313074A
    • 1982-01-26
    • US144131
    • 1980-04-28
    • Tadashi NomuraHiroshi InadaKeizo MoritaAkio WatanabeKiyoaki Nishikawa
    • Tadashi NomuraHiroshi InadaKeizo MoritaAkio WatanabeKiyoaki Nishikawa
    • G05B19/23G05B19/35G05B1/01
    • G05B19/353G05B19/232
    • A digital servo control system is responsive to a command signal indicative of a command position of a moveable element and to a phase modulated signal corresponding to the angle of rotation of a motor controlling said moveable element to develop a motor drive signal to position the motor. The system provides control during a velocity control mode and a position control mode, the latter occurring after the moveable element is moved to a predetermined small incremental distance from the commanded position. During the velocity control mode the motor is driven in accordance with a reference velocity selected in dependence upon the position error signal. Following a prescribed time after entry into the position control mode, the position error has added thereto an integration signal which increases in the same sense as the position error.
    • 数字伺服控制系统响应于指示可移动元件的指令位置的指令信号和对应于控制所述可移动元件的电动机的旋转角度的相位调制信号,以形成电动机驱动信号以定位电动机。 该系统在速度控制模式和位置​​控制模式期间提供控制,后者发生在可移动元件移动到距命令位置的预定的小增量距离之后。 在速度控制模式期间,根据位置误差信号选择的参考速度来驱动电动机。 在进入位置控制模式之后的规定时间之后,位置误差增加了与位置误差相同的积分信号。