Title:
METHOD AND DEVICE FOR CONTROLLING MOTOR
Document Type and Number:
Japanese Patent JPS5662089
Kind Code:
A
Abstract:
A direct current motor controlling apparatus determines the operational speed of one or more direct current motors such as traction motors propelling a passenger vehicle along a track. The speed of the motor is established by changing the on and off conduction ratio or duty-cycle relationship of a switch device to determine the field current and the armature voltage of that motor. The present apparatus utilizes solid-state switch devices to determine the mode of operation of the motor control apparatus which solid-state switch devices are more reliable and more simple in operation and less expensive to maintain.
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Inventors:
TOOMASU CHIYAARUZU MATEI
Application Number:
JP14253880A
Publication Date:
May 27, 1981
Filing Date:
October 14, 1980
Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CORP
International Classes:
H02P3/12; H02P3/14; H02P7/28; H02P7/29; (IPC1-7): H02P3/12; H02P7/28
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