CONTROL OVER SPEED OF DIESEL LOCOMOTIVE WITH ELECTRICAL TRANSMISSION Russian patent published in 2015 - IPC B60L15/20 B60L11/02 

FIELD: transport.

SUBSTANCE: proposed speed control process consists in isolation of the signal varying with the speed to compare isolated signal with preset magnitude and to vary the traction generator voltage. Signal that varies with traction motor magnetic flux is isolated. Signal that varies with difference in signals proportional to actual and preset speeds when said difference drops below preset value. Resistance to motion is calculated with allowance for target locomotive and train weight and track section profile. Said resistance and traction motor performances are used to define the setting of traction generator required current by known locomotive traction force magnitude. Signal that varies with motor magnetic flux is multiplied by preset speed. Obtained result is corrected with allowance for voltage drop across motor resistance and taken as traction generator voltage setting. Traction generator voltage setting is multiplied by current setting corrected as described above. Multiplication result is taken as the setting of traction generator power output.

EFFECT: higher accuracy and rate of speed adjustment.

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