Controlled stop function for locomotives

Details Controlled stop function for locomotives Controlled stop function for locomotives

1998-03-30

1999-11-30

Schwartz, Chris

Fluid-pressure and analogous brake systems

Speed-controlled

Traction-motor vehicle

303 20, 318375, 318376, 324677, 290 3, B60K 100, H02P 314, B61C 300

Patent

active

059929502

ABSTRACT:
A controlled stop system for an AC electric locomotive includes a braking effort control circuit responsive to a braking command regulating braking effort produced by AC traction motors coupled in driving relationship to wheels of the locomotive. The control circuit is responsive to a vehicle speed signal for adjusting motor operation to maintain braking effort to about zero speed. A filter processes the speed signal before application to the braking effort control circuit such that the control circuit operates as a speed regulator at zero speed to maintain the vehicle in a stopped condition.

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