Position commanding method and apparatus

Electricity: motive power systems – Plural diverse motor controls – Running-speed control

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Details

318569, 318611, 318717, 318276, H02P 100

Patent

active

054850657

ABSTRACT:
A position command method and apparatus for shortening the acceleration and deceleration times of a servo controlled apparatus by effectively utilizing the torque of the controlled apparatus. A value of speed per unit time is developed on the basis of speed and position data, and a constant speed or an acceleration or deceleration function processing may be selectably performed. In the position commanding method and its unit of the present invention, the deceleration stop distance of output speed is computed at all times or is held as a list data as described above and moreover is compared with a residual distance XR. Consequently, the deceleration stop distance does not have to coincide with the residual portion from the acceleration command, and the acceleration/deceleration curve alone can be realized in an independent form. Also, the speed change can be made smoother by correcting the cross point of independently formed acceleration and/or deceleration curves defining a corner section.

REFERENCES:
patent: 3749996 (1973-07-01), Pomella et al.
patent: 4414496 (1983-11-01), Watanabe et al.
patent: 4558265 (1985-12-01), Hayashida et al.
patent: 5202611 (1993-04-01), Uehara et al.

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