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    1.
    发明专利
    未知

    公开(公告)号：DE2319713A1

    公开(公告)日：1973-10-25

    申请号：DE2319713

    申请日：1973-04-18

    Applicant: IBM

    Inventor： MITCHELL JOHN ORVILLE ,  ROBERTS SPENCER DONALD ,  PELT RICHARD WARREN VAN

    IPC: H02P3/10 ,  G05B19/23 ,  G05D3/12 ,  G11B15/48 ,  H02P7/288

    Abstract: A motor, moving at a known speed, is stopped in a controlled manner by a speed control servomechanism which compares the actual speed-versus-distance deceleration profile to an optimum or desired speed-versus-distance deceleration profile, and variably controls the reverse energization, or plugging, of the motor in a manner devised to achieve the desired profile. When the speed servo has reduced motor speed to a low level, and preferably zero, a stop-lock control servomechanism is enabled to position and maintain the motor at a preselected stop-lock position. The stop-lock servo implements a motor-control algorithm which, for a given position error, provides a higher magnitude motor energization when the motor is moving away from the stop-lock position than when the motor is moving back toward the stop-lock position. This control algorithm provides increased servo gain when the motor is moving away from the stop-lock position.

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