Servomotor control method

Details Servomotor control method Servomotor control method

1997-08-20

1999-07-06

Sircus, Brian

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

31856818, 31856822, 318609, 36447429, G05B 1300

Patent

active

059201690

ABSTRACT:
The position of a movable body driven for circular interpolation movement by servomotors is measured directly or indirectly, and the servomotors are controlled in a feedback control mode to drive the movable body for movement according to a position command signal. A torque signal at quadrant change in which the direction of movement of the movable body changes, and a maximum or minimum torque signal at a moment immediately after the reversion of the servomotor are detected, a reference torque for correction is determined on the basis of the difference between the torque signal value at quadrant change and the maximum or minimum torque command value, and the torque signal at quadrant change is corrected with reference to the reference torque.

REFERENCES:
patent: 4743822 (1988-05-01), Futami et al.
patent: 4916375 (1990-04-01), Kurakake et al.
patent: 4961034 (1990-10-01), Kakino et al.
patent: 5204602 (1993-04-01), Iwashita
patent: 5598077 (1997-01-01), Matsubara et al.

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