Position control method

Details Position control method Position control method

1989-10-19

1991-07-09

Ip, Paul

Electricity: motive power systems

Positional servo systems

'reset' systems

318611, 318618, 318594, G05D 1136

Patent

active

050309013

ABSTRACT:
In a position control system having force as a manipulated variable and position as a controlled variable, negative feedback of position and velocity is performed. Positive feedback of acceleration is performed through a first order lag circuit. Alternatively positive feedback of velocity is performed through a quasidifferential circuit. By the combination of negative and positive feedback, it is possible to stabilize vibration characteristics of the mechanism, which tends to make the control system stable, and to achieve position control with high gain, high response and high accuracy.

REFERENCES:
patent: 4139811 (1979-02-01), Klinger
patent: 4200827 (1980-04-01), Oswald
patent: 4221995 (1980-09-01), Barkman
patent: 4282469 (1981-08-01), Moriyama
patent: 4331910 (1982-05-01), Kohzai et al.
patent: 4338659 (1982-07-01), Kurakake
patent: 4345194 (1982-08-01), Green
patent: 4816734 (1989-03-01), Kurakake et al.
patent: 4843293 (1989-06-01), Futami
patent: 4864209 (1989-09-01), Seki et al.

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