An electrically controlled propulsion system comprises a first electric power system comprising a first electric machine configured to generate a propulsion torque, and a first electric power supply unit electrically connected to the first electric machine, a second electric power system comprising a second electric machine configured to generate a propulsion torque, and a second electric power supply unit electrically connected to the second electric machine, wherein the first and second electric machines are individually controllable, wherein the method comprises obtaining a signal indicative of a first current energy condition of the first electric power supply unit and second current energy condition of the second electric power supply unit; determining a difference between the first current energy condition and the second current energy condition; and controlling the first and second electric machines to reduce a difference between the first and second current energy conditions.

An electrically controlled propulsion system comprises a first electric power system comprising a first electric machine configured to generate a propulsion torque, and a first electric power supply unit electrically connected to the first electric machine, a second electric power system comprising a second electric machine configured to generate a propulsion torque, and a second electric power supply unit electrically connected to the second electric machine, wherein the first and second electric machines are individually controllable, wherein the method comprises obtaining a signal indicative of a first current energy condition of the first electric power supply unit and second current energy condition of the second electric power supply unit; determining a difference between the first current energy condition and the second current energy condition; and controlling the first and second electric machines to reduce a difference between the first and second current energy conditions.

The present disclosure relates to controlling transfer of electrical energy in a coupling between a first vehicle and a second vehicle of a vehicle combination, each of the first and second vehicles having an electric machine and an energy storage system, wherein at least the electric machine of the second vehicle is operable in a traction mode and a generator mode for generating electrical energy during a regenerative braking event of the second vehicle, the method comprising determining an amount of possible excessive energy from the braking event of the second vehicle, determining a total energy level of the second vehicle, determining a total energy level of the first vehicle, comparing the determined amount of possible excessive energy with the determined total energy levels of the first vehicle and second vehicle, and controlling direction of the transfer of electrical energy between the first and second vehicle based on the comparison.

A method is provided for charging a battery-operated vehicle having a chargeable traction energy store and a system for autonomously guiding the vehicle with a charging vehicle having an energy generator and/or an energy store. The method forms at least one electrical coupling between the battery-operated vehicle and the charging vehicle via an autonomous driving manoeuver of the battery-operated vehicle and/or the charging vehicle. A charging of the traction energy store of the battery-operated vehicle occurs via the energy generator and/or the energy store of the charging vehicle during the driving of the paired battery-operated vehicle and charging vehicle.

A method is provided for charging a battery-operated vehicle having a chargeable traction energy store and a system for autonomously guiding the vehicle with a charging vehicle having an energy generator and/or an energy store. The method forms at least one electrical coupling between the battery-operated vehicle and the charging vehicle via an autonomous driving manoeuver of the battery-operated vehicle and/or the charging vehicle. A charging of the traction energy store of the battery-operated vehicle occurs via the energy generator and/or the energy store of the charging vehicle during the driving of the paired battery-operated vehicle and charging vehicle.

A system for controlling a vehicle including a solar cell includes: a high-voltage battery; a low voltage DC-DC converter (LDC) down-converting a voltage of the high-voltage battery; an auxiliary battery and an electrical load receiving the down-converted voltage from the LDC; a solar cell; a first solar cell converter converting output power of the solar cell into a voltage corresponding to a voltage of the auxiliary battery; a second solar cell converter converting the output power of the solar cell into a voltage corresponding to a voltage of the high-voltage battery; and a controller controlling operations of the LDC, the first solar cell converter, and the second solar cell converter based on a result of comparison between the output power of the solar cell and power consumption of the electrical load and based on a state of charge (SOC) of the auxiliary battery.

A system for controlling a vehicle including a solar cell includes: a high-voltage battery; a low voltage DC-DC converter (LDC) down-converting a voltage of the high-voltage battery; an auxiliary battery and an electrical load receiving the down-converted voltage from the LDC; a solar cell; a first solar cell converter converting output power of the solar cell into a voltage corresponding to a voltage of the auxiliary battery; a second solar cell converter converting the output power of the solar cell into a voltage corresponding to a voltage of the high-voltage battery; and a controller controlling operations of the LDC, the first solar cell converter, and the second solar cell converter based on a result of comparison between the output power of the solar cell and power consumption of the electrical load and based on a state of charge (SOC) of the auxiliary battery.

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.