Tracking control method between two servo systems

Details Tracking control method between two servo systems Tracking control method between two servo systems

1991-03-25

1992-11-10

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Plural servomotors

G05B 1132

Patent

active

051627167

ABSTRACT:
First, second, and third compensation signals are generated from the information on the position and speed of the first servo system having a speed control loop as a minor loop. The speed error of the speed control loop of the second servo system which has the speed control loop as a minor loop and uses a signal obtained by sampling the position detection signal, executing a digital calculation process on the sampled signal to obtain a speed signal and integrating the speed signal as a position command signal or a signal obtained by sampling the position detection signal of the first servo system and executing a digital calculation process on the sampled signal as a position command signal is compensated by the first, second and third compensation signals. Thus, even in cases where the acceleration and deceleration of the first servo system are executed even at constant power, positional synchronizing error is not generated. The accurate positional synchronizing control between two servo systems having different response characteristics can be achieved.

REFERENCES:
patent: 4353018 (1982-10-01), Kohzai et al.
patent: 4571687 (1986-02-01), Fukuyama et al.
patent: 4617498 (1986-10-01), Ruppert
patent: 4629956 (1986-12-01), Nozawa et al.
patent: 4656405 (1987-04-01), Kiya et al.
patent: 4761597 (1988-08-01), Sasaki
patent: 4879660 (1989-11-01), Asakura et al.
patent: 5010286 (1991-04-01), Nakamura et al.

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