According to one embodiment, provisioning an amount of power for one or more vehicles can comprise receiving a request indicating a requirement for an amount of power for the one or more vehicles. The request can indicate the requirement for the amount of power for the one or more vehicles individually or in total. A set of management rules can be read from one or more databases. A set of service configuration information and a set of vehicle specific information for the one or more vehicles can also be read from one or more databases. One or more power sources to meet the requirement for the amount of power for the one or more vehicles can be determined based on applying the management rules and using the set of service configuration information and the set of vehicle information and an indication of the determined power sources can be provided.

The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.

The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.

A battery management system for determining a lease rate for a rechargeable battery includes the rechargeable battery in communication with a database, a current sensor, a voltage sensor, a timer, a controller, and a memory in communication with the controller.

The invention relates to a cable bearing arrangement for a winding structure of system for inductive power transfer, wherein the winding structure has at least a first cable, wherein the cable bearing arrangement comprises or provides at least one cable guiding means for holding at least the first cable, wherein the cable bearing arrangement is provided by a cable chain, wherein the cable chain can adopt an unrolled state and a rolled-up state and a method of installing a cable bearing arrangement.

A system for wireless power transfer of on-road vehicles is provided herein. The system includes a plurality of base stations; a power transmission line located beneath a surface of a road having a plurality of segments, each segment having at least one pair of coils and at least one capacitor electrically connected via a switch to the coils in the segment; and at least one vehicle having at least one power receiving segment having at least two coils, connected to at least one capacitor, wherein the at least one vehicle further includes a communication transmitter configured to transmit a power requesting signal, wherein the coils of the power transmitting segment are configured to receive the power requesting signal; and wherein each of the base stations is further configured to feed a plurality of the power transmitting segments with current at a resonance frequency, responsive to the power requesting signal.

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.

A power transmission device that transmits electric power to a power reception device in a contactless manner includes a power transmission coil unit, an electrical device connected to the power transmission coil unit, and an enclosure storing the power transmission coil unit and the electrical device. The enclosure includes an installation wall, an outer wall, a partitioning wall, and a cover portion closing an opening formed in a power transmission surface of the outer wall and allowing transmission of electric power by the power transmission coil unit. The partitioning wall is provided to partition the space in the enclosure into a coil-unit storing portion in which the cover portion is located and the power transmission coil unit is stored, and an electrical-device storing portion in which the electrical device is stored. The outer wall and the partitioning wall are made of metal.

A roller coaster with a vehicle rolling under gravity along a track defining a ride path. The vehicle includes a chassis coupled to the track to roll on one or more surfaces of the track, and the vehicle includes a passenger compartment mounted on the chassis. The coaster also includes a compartment positioning mechanism that operates to move, such as with yaw, the passenger compartment between a first position in a passenger load/unload section of the ride path and one or more differing positions in the gravity-based ride section of the ride path. The coaster includes a power supply assembly with a charging element mounted on the track. The power supply assembly includes an onboard energy storage mounted on the vehicle that is charged by the charging element. The onboard energy storage powers the compartment positioning mechanism to move the passenger compartment between the first and second positions.

A roller coaster with a vehicle rolling under gravity along a track defining a ride path. The vehicle includes a chassis coupled to the track to roll on one or more surfaces of the track, and the vehicle includes a passenger compartment mounted on the chassis. The coaster also includes a compartment positioning mechanism that operates to move, such as with yaw, the passenger compartment between a first position in a passenger load/unload section of the ride path and one or more differing positions in the gravity-based ride section of the ride path. The coaster includes a power supply assembly with a charging element mounted on the track. The power supply assembly includes an onboard energy storage mounted on the vehicle that is charged by the charging element. The onboard energy storage powers the compartment positioning mechanism to move the passenger compartment between the first and second positions.