Plugging and plugging override control apparatus

Details Plugging and plugging override control apparatus Plugging and plugging override control apparatus

1983-01-05

1985-07-16

Weldon, Ulysses

Electricity: motive power systems

Braking

'plugging' or application of reverse power to motor

318375, 318376, 318379, H02P 310

Patent

active

045299196

ABSTRACT:
A control system (28) is provided for controlling the supply of power to a motor (12) having an armature (34) and a plugging diode (38) connected across the armature (34), including a circuit (14) for producing direction command signals, a circuit (98) for generating digital motor power command signals, a circuit (16) for sensing a plugging condition and generating a plug signal, a microprocessor (46) for generating one of a plurality of pulse trains during typical plugging conditions and for automatically overriding the generation of the one pulse train and generating other of the plurality of pulse trains during special plugging conditions. By automatically providing the override feature during the special plugging conditions, the disadvantage of manual override in prior control systems is obviated.

REFERENCES:
patent: 3551773 (1970-12-01), Dannettell et al.
patent: 3828235 (1974-08-01), Price et al.
patent: 3843912 (1974-10-01), Anderson
patent: 3958163 (1976-05-01), Clark
patent: 3968414 (1976-07-01), Konrad
patent: 4068153 (1978-01-01), Artrip et al.
patent: 4090116 (1978-05-01), Lippitt
patent: 4095153 (1978-06-01), Matty et al.
patent: 4199711 (1980-04-01), Horiuchi et al.
David L. Cohn et al., "A Step by Step Introduction to 8080 Microprocessor System", Dilithium Press, P.O. Box 92, Forest Grove, Or., 97116, 1979, pp. 1-3.
European Patent Application 0 036 326, Regenerative Braking System for Three-Terminal D.C. Motor, date of publication 23.09.81.

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