Laundry apparatus and method of controlling such

Details Laundry apparatus and method of controlling such Laundry apparatus and method of controlling such

1984-04-19

1985-09-10

Shoop, Jr., William M.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, 68 12R, D06F 3300, H02P 602

Patent

active

045409218

ABSTRACT:
A method of controlling laundry apparatus having first and second conductors for supplying power and being driven by an electronically commutated motor having a plurality of winding stages adapted to be selectively commutated. In practicing this method, voltages across the winding stages are converted to digital form thereby to digitize the voltages, and the winding stages are commutated by selectively switching the winding stages to the conductors in at least one preselected sequence. The commutating is temporarily interrupted to leave the winding stages temporarily unpowered, and the winding stages are switched from a first connection arrangement to a second connection arrangement. The digitized voltages are sensed while the winding stages are temporarily unpowered, and the commutating is resumed beginning at a point in the sequence determined from the sensed digitized voltages.

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"MCS-48.RTM. Family of Single Chip Microcomputers User's Manual", Intel Corp., Santa Clara, Calif., 1981, Fig. 2-1, pp. 4-5.

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