Embodiments of the invention are directed toward a geared traction drive system configured to drive a wheel of a vehicle, comprising: a driveshaft for transmitting power to the wheel; an electric drive motor for driving the driveshaft, the electric drive motor configured to receive signals from a vehicle dynamic control system to command a required speed; a gear reduction component for reducing the speed of the motor by a predetermined factor to a lower speed suitable for driving the wheel; and a drive electronics component that works with the electric drive motor to drive the wheel to the speed commanded by the vehicle dynamic control system.

The disclosure is directed at a method and apparatus for an active convertor dolly for use in a tractor-trailer configuration. In one embodiment, the apparatus includes a system to connect a tractor to a trailer. The apparatus further includes a charge generating system for translating the mechanical motions or actions of the dolly into electricity or electrical energy so that this energy can be used to charge a battery or to power other functionality for either the dolly or the tractor-trailer. The active dolly may also operate to assist in shunting the tractor-trailer.

The disclosure is directed at a method and apparatus for an active convertor dolly for use in a tractor-trailer configuration. In one embodiment, the apparatus includes a system to connect a tractor to a trailer. The apparatus further includes a charge generating system for translating the mechanical motions or actions of the dolly into electricity or electrical energy so that this energy can be used to charge a battery or to power other functionality for either the dolly or the tractor-trailer. The active dolly may also operate to assist in shunting the tractor-trailer.

An electric rolling stock control apparatus includes: a plurality of propulsion control devices that each control an electric motor for driving a car of a train, the electric motor being installed on the car, the train including a plurality of the cars; and a train information management device that calculates power necessary for the entire train, wherein the propulsion control devices each determine power according to a predetermined condition.

An electric rolling stock control apparatus includes: a plurality of propulsion control devices that each control an electric motor for driving a car of a train, the electric motor being installed on the car, the train including a plurality of the cars; and a train information management device that calculates power necessary for the entire train, wherein the propulsion control devices each determine power according to a predetermined condition.

A system includes one or more processors, a communication device, and a positive train control (PTC) system. The one or more processors and communication device are onboard a lead vehicle of a vehicle system that includes the lead vehicle and a first remote vehicle. The PTC system is configured to restrict movement of the vehicle system based on a location of the vehicle system. The PTC system communicates a list of vehicle identifiers to the one or more processors. The communication device communicates a wireless linking message, which includes a vehicle identifier associated with the first remote vehicle, to the first remote vehicle. The communication device establishes a communication link between the lead vehicle and the first remote vehicle responsive to receipt of the wireless linking message at the first remote vehicle. The one or more processors remotely control movement of the first remote vehicle via the communication link.

A system includes one or more processors, a communication device, and a positive train control (PTC) system. The one or more processors and communication device are onboard a lead vehicle of a vehicle system that includes the lead vehicle and a first remote vehicle. The PTC system is configured to restrict movement of the vehicle system based on a location of the vehicle system. The PTC system communicates a list of vehicle identifiers to the one or more processors. The communication device communicates a wireless linking message, which includes a vehicle identifier associated with the first remote vehicle, to the first remote vehicle. The communication device establishes a communication link between the lead vehicle and the first remote vehicle responsive to receipt of the wireless linking message at the first remote vehicle. The one or more processors remotely control movement of the first remote vehicle via the communication link.

The disclosure relates to a method for actuating an electrical drive of a trailer vehicle with a towing vehicle. According to an embodiment, the method include the steps of: determining a current mass of the towing vehicle; determining a current drive force of the towing vehicle; determining an acceleration demand in dependence upon the current mass and the current drive force; and, actuating the electric drive via an actuating signal in dependence upon the acceleration demand. The disclosure also relates to a control device for executing the method, a towing vehicle, a trailer vehicle and a semi-trailer truck.

A propulsion arrangement for a self-powered dolly vehicle unit, the propulsion arrangement comprising a first electric machine, a second electric machine, a gearbox, and an open differential for driving first and second wheels of a driven axle, wherein the first and second electric machines are arranged in parallel and connected to the open differential via the gearbox at respective gear ratios.

A propulsion arrangement for a self-powered dolly vehicle unit, the propulsion arrangement comprising a first electric machine, a second electric machine, a gearbox, and an open differential for driving first and second wheels of a driven axle, wherein the first and second electric machines are arranged in parallel and connected to the open differential via the gearbox at respective gear ratios.