Dual mode position control system with speed profiling

Details Dual mode position control system with speed profiling Dual mode position control system with speed profiling

1997-01-24

1998-09-08

Masih, Karen

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318685, 318696, 318254, 318138, 318439, G05B 1918

Patent

active

058049410

ABSTRACT:
A control system is provided for use with an actuator in a load-positioning assembly. The actuator and its load are quickly and accurately driven to a target position using dual control modes. When the distance from the target position is large, a speed control mode is used. In this mode, the actuator is operated according to a speed demand profile which is a function of a programmable maximum speed and the distance remaining to the target position. When the distance to the target position is small, a stepping mode is selected for final positioning of the actuator and its load.

REFERENCES:
patent: 4398138 (1983-08-01), Kohzai et al.
patent: 4591774 (1986-05-01), Ferris et al.
patent: 5519465 (1996-05-01), Kawamura et al.
Stephenson and Blake, "The Characteristics, Design and Applications of Switched Reluctance Motors and Drives," PCIM Conference & Exhibition, Jun. 21-24, 1993, Nuremberg, Germany.

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