In a local cart traveling system, a frame track includes first and second metal rails each with an L-shaped cross section and facing each other. A local cart is within the frame track, and includes a first electricity receiving tire and a second electricity receiving tire to travel on horizontal travel surfaces of the rails. A voltage supplier supplies an AC voltage to the travel surfaces, so that the first metal rail and a first electricity receiving tire define a first capacitor and the second metal rail and the second electricity receiving tire define a second capacitor. The local cart includes a power receiver to receive AC power, and a travel motor that receives power after the AC power is rectified. The frame track includes a connecting plate as an electrical insulator covering portions of the surfaces of vertical walls of the first metal rail and the second metal rail.

A vehicle is provided that determines a first triggering event in predetermined triggering event information has occurred, in response to a first event, automatically forwards a first communication to a selected third party vendor to preorder a product or service of the selected third party vendor in connection with a transaction with the user, determines a second triggering event in the triggering event information has occurred, and in response to the later second event, automatically sends an authorization to complete the transaction by providing financial information to the selected third party vendor.

A first converter performs power conversion and outputs AC power. The AC power outputted from the first converter is supplied to a first coil. The first coil is magnetically coupled with a second coil, and the AC power is transmitted from the first coil to the second coil. A second converter is connected to the second coil, and converts the AC power transmitted to the second coil to DC power and supplies the DC power to a load. A first control unit controls the first converter so as to alternately switch between a first state of outputting rectangular wave voltage which cyclically changes and a second state of outputting constant reference voltage, on the basis of required power of the load.

A wireless power transfer system for a train that includes one or more locomotive units with an energy storage system and one or more passenger cars units that transmit power to the one or more locomotive units. The wireless power transfer system includes one or more HEP cables through which power is provided from the one or more passenger car units to the one or more locomotive units, one or more wireless power transfer (WPT) transmitters mounted to the rail separate from the train, a WPT receiver on one of the one or more passenger cars configured to receive power from one of the one or more WPT transmitters, and an inverter on the one of the one or more passenger car units connected to the HEP cables. The inverter receives power from the WPT receiver and sends the power to the energy storage system through the HEP cables.

A rail vehicle is configured for extracting electrical energy from a power supply external to the vehicle and has at least one electrical energy storage unit. In a first operating mode, the rail vehicle travels by means of energy extracted from the power supply and without energy from the energy storage unit. In a second operating mode, the rail vehicle travels, at least in part, by means of energy from the energy storage unit and/or at reduced traction power in comparison to the first operating mode. The rail vehicle includes a controller set up for activating the first or the second operating mode, as a function of an upper consumption limit, which defines the permissible upper limit of the power that can be extracted from the power supply. The upper consumption limit is established in a variable manner so as to prevent power peaks in the power supply.

An apparatus comprises a first induction section comprising a first core and a first coil on the first core. A second induction section comprises a second core and a second coil on the second core. The first core comprises rail extensions, where at least two of the rail extensions extend from opposite ends of the first core. The second core comprises shoe portions located at respective ones of the rail extensions, where a gap is provided between each of the rail extensions and respective ones of the shoe portion. The second induction section is configured to move relative to the first induction section in a path along the extensions. The first induction section is configured to induce current in the second induction section, including when the second core moves relative to the first core along the extensions, to provide a contactless induction coupling between the first induction section and the second induction section.

A wireless power transmitting device transmits power by wireless to a wireless power receiving device through magnetic coupling between a feeding coil and a receiving coil and includes: a feeding circuit including a power conversion circuit that converts DC power into AC power of a drive frequency and a feeding coil unit including the feeding coil that receives the AC power supplied from the power conversion circuit to generate an AC magnetic field; and a control circuit Stu that controls the amount of magnetic flux generated from the feeding coil. The control circuit Stu calculates a separation distance between the feeding and receiving coils in their opposing direction from the circuit characteristic value of the wireless power transmitting device in a state where the amount of magnetic flux generated from the feeding coil is controlled so as to be constant.

System for autonomously transporting people and/or goods. The system includes at least one wheel, a chassis that supports a payload for transporting at least one of people or goods, and at least one electric motor coupled to the at least one wheel. The at least one electric motor is one of chassis mounted or at least one wheel mounted. The system also includes a battery to power the at least one electric motor.

A contactless electric power supply device of the present invention is provided with: multiple supply coils and an alternating current power source arranged on a fixed section; multiple receiving coils and a receiving circuit provided on a moving body; and a face-to-face power supply section provided for each of the multiple supply coils and configured to supply alternating current power from the alternating current power source to the supply coils only when detecting a face-to-face state between the supply coil and the receiving coil; wherein separation distances and lengths in the moving direction of the multiple supply coils and multiple receiving coils are set to satisfy face-to-face conditions, and a receiving circuit converts alternating current power received by at least one of the receiving coils in the face-to-face state and generates a receiving voltage at least equal to a driving voltage.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.