Motor speed control system

Details Motor speed control system Motor speed control system

1989-09-22

1992-03-03

Shoop, Jr., William M.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

388904, 3889075, H02P 5168

Patent

active

050938924

ABSTRACT:
There is disclosed a motor speed control system particularly applicable to control sewing machine operation, including an evaluator to compare a preset speed of revolution value and an actual speed of revolution value to output one signal representing a deviation between the two speeds and the other representing a rate of increase or decrease of the actual speed of revolution within a predetermined short interval. In response to these parameter signals, one of the stored fuzzy rules is selectively applied to output an appropriate control signal to change electric power supplied to a motor as needed to adjust the speed of revolution toward the preset revolution with quick responsivity and smooth transition.

REFERENCES:
patent: 4719582 (1988-01-01), Ishida et al.
patent: 4777585 (1988-10-01), Kokawa et al.
patent: 4809175 (1989-02-01), Hosaka et al.
patent: 4839823 (1989-06-01), Matsumoto
patent: 4842342 (1989-06-01), Takahashi

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