A contactless charging device for contactlessly charging an energy accumulator of a motor vehicle, wherein the contactless charging device has an interface for coupling the contactless charging device to a power source, wherein the interface is designed for communicative coupling and for wired electrical coupling to a charging station, wherein the charging station is designed for the wired charging of the energy accumulator.

A vehicle includes a power reception unit, a rectifier, a power line, and a cooling fan. The power reception unit of the vehicle is configured to receive, in a contactless manner, AC power output from a power transmission unit of a power transmission device. The rectifier rectifies the electric power received by the power reception unit. The electric power rectified by the rectifier is output through the power line. The cooling fan cools the power reception unit. The cooling fan is electrically connected to the power line, and operates with the electric power received from the power line.

Systems and methods for charging an electric bus having a charging interface on its roof may include determining that an approaching bus is supposed to be charged at the charging station, lowering the charging head of the charging station to land on the roof of the bus, and moving the bus with the charge head on its roof to engage the charging head with the charging interface.

Systems and methods for charging an electric bus having a charging interface on its roof may include determining that an approaching bus is supposed to be charged at the charging station, lowering the charging head of the charging station to land on the roof of the bus, and moving the bus with the charge head on its roof to engage the charging head with the charging interface.

The first power converter is connected with a circuit connected with an overhead line, and an intermediate link, and mutually converts power. The second power converter is connected with the intermediate link, and a circuit electrically connected with an induction motor, and mutually converts power. The auxiliary power-supply device receives power from the intermediate link, and supplies power to a load. The operation controller controls the operation/deactivation of the first power converter based on acceleration and speed of a vehicle, auxiliary source power, and a restriction value for regenerative power to the overhead line in such a way that the power to be supplied to the auxiliary power-supply device becomes equal to or larger than the auxiliary source power, and the regenerative power flowing to the overhead line 105 becomes equal to or smaller than the restriction value.

The first power converter is connected with a circuit connected with an overhead line, and an intermediate link, and mutually converts power. The second power converter is connected with the intermediate link, and a circuit electrically connected with an induction motor, and mutually converts power. The auxiliary power-supply device receives power from the intermediate link, and supplies power to a load. The operation controller controls the operation/deactivation of the first power converter based on acceleration and speed of a vehicle, auxiliary source power, and a restriction value for regenerative power to the overhead line in such a way that the power to be supplied to the auxiliary power-supply device becomes equal to or larger than the auxiliary source power, and the regenerative power flowing to the overhead line 105 becomes equal to or smaller than the restriction value.

An electric drive vehicle is provided with first and second slider plates contacting a trolley line on the high-voltage side and on the ground side, respectively. A camera has a photographing range of the whole of the second slider plate held in contact with the trolley line on the ground side and a part of the trolley line residing around the second slider plate. A controller controls a display of a monitor, wherein the controller includes a relative distance calculation section that calculates a relative distance between the trolley line on the ground side and a reference position of the second slider plate, and a bird's eye view image data generation section that generates bird's eye view image data reflecting the relative distance calculated by the relative distance calculation section and that outputs the bird's eye view image data to the monitor.

A wireless power-supplying system according to the present disclosure includes a power-transmitting device and a power-receiving device. The power-transmitting device includes a power-transmitting coil to which AC power of a certain frequency is input from a power supply and a controller which controls a frequency. The power-receiving device includes a power-receiving coil magnetically coupled with the power-transmitting coil with a certain coupling coefficient and a power-receiving side series element connected to the power-receiving coil in series and having imaginary impedance jZ.sub.S2i. The imaginary impedance is defined so that impedance when a power-receiving side is seen from the power supply is independent of the coupling coefficient when the frequency and the coupling coefficient are predetermined values. The controller changes the frequency according to at least one of power-transmitting status information of the power-transmitting device and power-receiving status information of the power-receiving device when the coupling coefficient changes.

This invention relates to a vehicle power coupling apparatus for a vehicle. The apparatus has a pickup coil arrangement for receiving an alternating magnetic field applied to the vehicle for generating power to operate the vehicle. The apparatus further has a shield for shielding a region including the pickup coil arrangement from an interior of the vehicle where a user of the vehicle may be present when the vehicle is in operation, and the shield includes at least one hole therein for providing access to one or more components of the vehicle for working on the one or more components. Additional aspects of the invention relate to receiving an alternating magnetic field and converting the alternating magnetic field into electrical power for recharging a vehicle and/or for providing motive power to the vehicle.

The invention relates to an energy-supplying double-deck carriage, in particular a passenger double-deck carriage, for power supply, in which a main transformer is arranged in the roof region, preferably on or at the roof, and moreover preferably substantially above a bogie.