Patent ID: 6166512
Filing Date: 2000-12-26
Classification: B60L,Y02T

Abstract:
A controller for diesel electric locomotive, in which, after output from an alternating current generator driven by a diesel engine is rectified into direct current power, said direct current power is inverted into alternating current power by an inverter to thereby carry out a power run control of an induction motor, and energy generated by said induction motor is consumed at a brake resistor by moving a brake chopper when the brake is applied,wherein when a revolving speed of said induction motor exceeds a predetermined value at the time of power run, slip control means detects slip of wheels and outputs an output reduction signal for said induction motor in correspondence to a level of slip,an output torque of said induction motor is reduced with said output reduction signal, anda reduced amount of the output torque of said induction motor is consumed at a brake resistor through a conduction ratio control of said brake chopper.