Abstract: An electromagnetic pulse detector in an integrated circuit includes one or more peak hold circuits coupled to one or more traces in the integrated circuit and configured to asynchronously detect voltage spike(s) on the one or more traces and store voltage value(s) corresponding to the voltage spike(s). One or more comparator circuits are coupled to the peak hold circuits to compare the voltage values corresponding to the voltage spikes to one or more threshold voltage values. Storage locations are coupled to the comparator circuits to store indications of the voltage spike(s) being greater than the threshold voltage value to thereby indicate detection of an electromagnetic pulse.

Abstract: Various methods and systems are provided for regulating traction motor temperature via control of a traction motor blower. In one embodiment, a method comprises adjusting a speed of a traction motor blower based on ambient temperature, traction motor loss, and one or more traction motor temperatures.

Abstract: Various systems and method for generating electrical power in a rail vehicle are provided. In one embodiment, a vehicle system includes an electrical power generation unit operatively coupled with a drive shaft of an engine. The electrical power generation unit includes a fraction alternator and a head-end-power (HEP) alternator. The traction alternator is excited by power electronics positioned external to the traction alternator. The HEP alternator is self-excited by an exciter winding positioned in the HEP alternator.

Abstract: Various methods and systems are provided for regulating fraction motor temperature via control of a traction motor blower. In one embodiment, a method comprises adjusting a speed of a traction motor blower based on ambient temperature, traction motor loss, and one or more traction motor temperatures.

Abstract: Various systems and method for generating electrical power in a rail vehicle are provided. In one embodiment, a vehicle system includes an electrical power generation unit operatively coupled with a drive shaft of an engine. The electrical power generation unit includes a fraction alternator and a head-end-power (HEP) alternator. The traction alternator is excited by power electronics positioned external to the traction alternator. The HEP alternator is self-excited by an exciter winding positioned in the HEP alternator.

Abstract: A traction control system for controlling an electric traction motor drivingly coupled to a wheel of a tractive vehicle. The traction control system includes means for determining speed of the wheel, means for determining tractive effort of the wheel and a control circuitry for controlling drive signals to the motor based upon the wheel speed and tractive effort.

Abstract: In a locomotive having at least one electrical load connected to at least one power source via a locomotive power carrying bus, a system for ensuring a current connection between the at least one power source and the at least one electrical load is provided. The system includes a first rectification device, wherein the first rectification device is connected between the at least one electrical load and the locomotive power carrying bus to provide a rectified current connection between a first power source and the at least one electrical load.