An assembly includes a locomotive, equipped with a roof line, electrically connected to a pantograph, a control system and a sensing circuit. The control system orders, depending on the voltage on the roof line detected by the sensing circuit, the open or closed state of a switch between the roof line and a power supply circuit of the motors of the locomotive. The assembly also includes a tender, coupled to the locomotive and carrying batteries suitable for delivering a current for supplying the motors. The tender is electrically connected to the locomotive in such a way that a first terminal of the batteries is connected to the roof line and a second terminal of the batteries is connected to a point of the locomotive set to a reference potential.

A current collector for a non-track-bound, electrically driven vehicle for feeding electrical energy from a two-pole overhead line system with two contact wires. Two upper arms are rotatably connected to an adjustable lower arm by toggle joints. Each upper arm carries a contact rocker for contacting the contact wires. Coupling bars are rotatably connected to the upper arms and articulated so that adjustment of the lower arm forces adjustment of the upper arms. A compensating rocker compensates for a height difference between the contact rockers with a rocker stand and a rocker beam. The rocker stand can be rotatably connected to the vehicle and the rocker beam is connected to the coupling bars by way of compensating joints on either side of the rocker joint. At least one stop element limits a rotational movement of the rocker beam about a rocker joint axis of the rocker joint.

A current collector for a non-track-bound, electrically driven vehicle for feeding electrical energy from a two-pole overhead line system with two contact wires. Two upper arms are rotatably connected to an adjustable lower arm by toggle joints. Each upper arm carries a contact rocker for contacting the contact wires. Coupling bars are rotatably connected to the upper arms and articulated so that adjustment of the lower arm forces adjustment of the upper arms. A compensating rocker compensates for a height difference between the contact rockers with a rocker stand and a rocker beam. The rocker stand can be rotatably connected to the vehicle and the rocker beam is connected to the coupling bars by way of compensating joints on either side of the rocker joint. At least one stop element limits a rotational movement of the rocker beam about a rocker joint axis of the rocker joint.

A method and a drive control device for operating at least two electric drive machines in the event of a change in load of a vehicle. A first torque can be transferred to at least one wheel of a first vehicle axle by a first electric drive machine, and a second torque can be transferred to at least one wheel of a second vehicle axle by a second electric drive machine. Each torque is defined by an amount and by a direction. In the method, it is determined whether a change in load is pending within a first defined timeframe and, if this is affirmed, the second torque is set for a second definable timeframe with a direction which is set opposite a current direction of the first torque.

A method and a drive control device for operating at least two electric drive machines in the event of a change in load of a vehicle. A first torque can be transferred to at least one wheel of a first vehicle axle by a first electric drive machine, and a second torque can be transferred to at least one wheel of a second vehicle axle by a second electric drive machine. Each torque is defined by an amount and by a direction. In the method, it is determined whether a change in load is pending within a first defined timeframe and, if this is affirmed, the second torque is set for a second definable timeframe with a direction which is set opposite a current direction of the first torque.

A current collector for a rail vehicle intended for international transport includes a support bringing two contact strips into electrically conductive contact with a contact wire on the roof of the rail vehicle. Each contact strip has a first length and a contact strip extension at each end. Each contact strip extension is rotatably mounted and connected to a respective end of the contact strip. In a first position the contact strip extensions are hinged inwards, such that a resulting total length of the contact strip with the associated contact strip extensions corresponds to the first length of the contact strip. In a second position, the contact strip extensions are hinged outwards, such that the resulting total length of the contact strip with the associated contact strip extensions corresponds to a second length of the contact strip which is greater than the first length.

A current collector for a rail vehicle intended for international transport includes a support bringing two contact strips into electrically conductive contact with a contact wire on the roof of the rail vehicle. Each contact strip has a first length and a contact strip extension at each end. Each contact strip extension is rotatably mounted and connected to a respective end of the contact strip. In a first position the contact strip extensions are hinged inwards, such that a resulting total length of the contact strip with the associated contact strip extensions corresponds to the first length of the contact strip. In a second position, the contact strip extensions are hinged outwards, such that the resulting total length of the contact strip with the associated contact strip extensions corresponds to a second length of the contact strip which is greater than the first length.

A monitoring system for an electric vehicle that draws current from a conductor by means of a current collector that contacts a conductor in operation of the electric vehicle. The monitoring system includes a plurality of sensor modules throughout the current collector, wherein each sensor module comprises a plurality of FBG (Fibre Bragg Grating) sensors. Sensors of each module are arranged in a geometric pattern that compensates for temperature induced wavelength changes in the FBG sensors of each module. An optical source illuminates each sensor module and an optical coupler optically couples the optical source to each sensor module. An optical signal interpretation module receives optical signals from each sensor module wherein the optical signals are generated by the sensor modules in response to illumination of the sensor modules, wherein the interpretation module is configured to determine from the optical signals, a temperature-independent strain measurement for each sensor module.

In a power conversion device, a distance between an output terminal of a first switching module and a cathode terminal of a first diode module in a first direction is arranged to be substantially equal to a distance between an output terminal of a second switching module and an anode terminal of a second diode module in the first direction.

In a power conversion device, a distance between an output terminal of a first switching module and a cathode terminal of a first diode module in a first direction is arranged to be substantially equal to a distance between an output terminal of a second switching module and an anode terminal of a second diode module in the first direction.