Abstract: A track brake control system for providing braking of a railway vehicle operates upon receipt of an emergency braking command. The control system includes a member for receiving deceleration information from one or more sensing devices. The control system further includes a member for comparing the deceleration information with a reference value or reference profile. Further, the control system includes at least one regulating device for continuously adjusting a braking demand signal to a track brake so as to cause deceleration of the railway vehicle based on the comparison.

Abstract: A track brake control system for providing braking of a railway vehicle is disclosed. The control system operates upon receipt of an emergency braking command. The control system includes a member for receiving deceleration information from one or more sensing devices. The control system further includes member for comparing the deceleration information with a reference value or reference profile. Further, the control system includes at feast one regulating device for continuously adjusting a braking demand signal to a track brake so as to cause deceleration of the railway vehicle based on the this comparison.

Abstract: A reversing internal combustion engine has an ignition system controlled by a microprocessor which samples the magneto voltage output in order to make decisions concerning spark/timing. By suppressing the spark to allow the engine to slow down, and reapplying the spark at a suitable advance, reversal of the engine is effected from forward to reverse or reverse to forward.