Electricity: motive power systems – Motor-reversing – Field circuit control
Patent
1985-09-26
1986-12-16
Miller, Charles D.
Electricity: motive power systems
Motor-reversing
Field circuit control
318287, 318296, 318434, H02P 122
Patent
active
046299513
ABSTRACT:
A control system for reversing the rotation of a field wound motor is used in electric power steering systems. The system responds to control signals from a control means 25 to energize opposite legs of a bridge circuit 14 to direct current through the field winding 10 in the correct direction. At the same time the armature winding is energized. The control system provides a failure detection means 18 for the checking of the various control signals and the operation of the system to determine if there is any system failure to provide for a failsafe operation.
REFERENCES:
patent: 3496441 (1970-02-01), Heider et al.
patent: 3564365 (1971-02-01), Zelina
patent: 3694715 (1972-09-01), Van Der Linde et al.
patent: 4327391 (1982-04-01), Grzebielski
patent: 4423362 (1983-12-01), Konard et al.
patent: 4427928 (1984-01-01), Kuriyama et al.
patent: 4447768 (1984-05-01), Terui
patent: 4553187 (1985-11-01), Burns et al.
Carp Ralph W.
Weber Robert E.
Allied Corporation
Miller Charles D.
Ro Bentsu
Seitzman Markell
Wells Russel C.
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