A battery system has a battery cell including a can, and a ceramic substrate, including a patterned metallized surface, mounted to the can via a thermally conductive adhesive. The battery system also has a monolithic integrated circuit that measures and transmits data about the cell mounted to the patterned metallized surface such that the ceramic substrate and monolithic integrated circuit are electrically isolated from one another.

Provided is electric power equipment that allows a battery to be installed and removed with ease. The electric power equipment (1) includes a main body (2) defining a battery receiving recess (40) having an open upper end, and a battery (20) configured to be received in the battery receiving recess, wherein an upper part of a front end part of the battery is provided with a projection (108) projecting in a forward direction, and a rear end part of the battery is provided with a grip, and wherein an upper edge of the front end part of the battery receiving recess is provided with a supporting surface (36) configured to support a lower surface of the projection at least when the battery is being removed from the battery receiving recess.

A system for wirelessly transmitting power between a track and independent movers in a motion control system includes a pick-up coil provided proximate to the magnets on the movers. The fundamental component of the voltage applied to the drive coils interacts primarily with the magnetic field generated by the permanent magnets on the movers and not with the pick-up coil. Consequently, the pick-up coil does not interfere with desired operation of the movers but rather, interacts primarily with the harmonic components and has current and voltages induced within the pick-up coil as a result of the harmonic components. The energy captured by the pick-up coil reduces the amplitude of eddy currents on the mover. After harvesting the harmonic content, the pick-up coil may be connected to another circuit on the mover and serve as a supply voltage for the other circuit.

The present invention suppresses leakage magnetic field. A power transfer coil configured to transmit or receive power includes: an inner coil; a first outer coil formed so as to surround the inner coil such that a magnetic flux opposite in phase to a magnetic flux outside the inner coil is generated outside the first outer coil, the first outer coil having one end connected to a first terminal and the other end connected to one end of the inner coil; and a second outer coil formed so as to surround the inner coil such that a magnetic flux opposite in phase to the magnetic flux outside the inner coil is generated outside the second outer coil, the second outer coil having one end connected to a second terminal and the other end connected to the other end of the inner coil.

A resonant induction wireless power transfer coil assembly designed for low loss includes a wireless power transfer coil, a non-saturated backing core layer adjacent the wireless power transfer coil, an eddy current shield, a gap layer between the backing core layer and the eddy current shield, and an enclosure that encloses the wireless power transfer coil, backing core layer, gap layer and eddy current shield. The gap layer has a thickness in a thickness range for a given thickness of the backing core layer where eddy current loss in the eddy current shield is substantially flat over the thickness range. A thickness of the backing core layer and a thickness of the gap layer are selected where a total power loss comprising power loss in the backing core layer plus eddy current loss over the gap layer is substantially minimized.

A method for determining the relative position of a metal object in relation to a user device and to a transmitter antenna of an inductive charging support when charging the user device. The method includes measuring the quality factor of the transmitter antenna, measuring the quality factor of the receiver antenna, and comparing the measured quality factor of the transmitter antenna with a predetermined quality factor threshold of the transmitter antenna and comparing the measured quality factor of the receiver antenna with a predetermined quality factor threshold of the receiver antenna so as to deduce therefrom the relative position of the metal object in relation to the user device and to the transmitter antenna or the absence of an interfering metal object.

A method docks an autonomous mobile green area maintenance robot to a docking station. An electrical conductor arrangement runs in the region of the docking station, wherein the conductor arrangement is designed such that a periodic current flows through the conductor arrangement, wherein the current generates a periodic magnetic field. The green area maintenance robot has two magnetic field sensors, wherein the two magnetic field sensors are designed such that the magnetic field respectively causes a periodic sensor signal in the magnetic field sensors. The method has the steps of: determining a phase shift between the two sensor signals or signals based on the sensor signals, and controlling movement of the green area maintenance robot for docking on the basis of the determined phase shift.

A charging control system includes a lawn mower that has a battery and performs a lawn mowing work while traveling autonomously, and a charging station for charging the battery. The lawn mower includes a period calculator for calculating a shutoff period of supply power supplied from the charging station, and a first communication unit. The charging station includes a second communication unit communicating with the first communication unit, an information acquisition unit for acquiring shutoff period information indicating the shutoff period from the first communication unit via the second communication unit, a switch for shutting off the supply power, and a shutoff controller for controlling the operation of the switch. The shutoff controller releases the shutoff of the power supply to the lawn mower based on the shutoff period information.

A system and a method of controlling a solar roof of a vehicle are provided. The system includes a solar cell panel and a controller that controls charging of a main battery and an auxiliary battery using power generated from the solar cell panel. A light amount sensor senses the amount of light collected in the solar cell panel and a temperature sensor measures a surface temperature of the solar cell panel.

The present invention provides a power supply method and system for a hydrogen fuel cell stack, and a hydrogen powered motorcycle and a driving method and system thereof, the power supply method includes: a control chip detecting the operating states of the hydrogen fuel cell stack and the lithium battery pack; when the hydrogen fuel cell stack and the lithium battery pack are free of faults, obtaining the output voltage of the lithium battery pack; when the output voltage is lower than the charge-on threshold, the hydrogen fuel cell stack powering the lithium battery pack; when the output voltage is higher than the charge-stop threshold, disconnecting the circuit of the hydrogen fuel cell stack powering the lithium battery pack, when the output voltage is more than or equal to the charge-on threshold and less than or equal to the charge-stop threshold, the circuit of the hydrogen fuel cell stack remaining to power the lithium battery pack; and when the output voltage is higher than the charge-stop threshold, disconnecting the circuit oi the hydrogen fuel cell stack powering the lithium battery pack. The aforementioned technical solution uses hydrogen energy as the electrical energy powering the motorcycle as much as possible under the protection of the hydrogen fuel cell stack.