Abstract: Provided is an information providing system capable of promoting reuse of secondary batteries. An information providing system includes a supplementing target device and a server. The supplementing target device includes: a power calculating unit configured to calculate maximum required power; an air temperature acquiring unit configured to acquire past air temperature data; and a supplementing target information requesting unit configured to transmit, to the server, supplementing target information.

Abstract: According to various embodiments, provided is a wireless power transmission device comprising a plurality of power transmission antennas, a geomagnetic sensor, a processor, and a communications circuit, wherein the processor is configured to: set a coordinate system on the basis of geomagnetic sensing information from the geomagnetic sensor; control such that, for charging an electronic device, a first RF wave is formed under a first transmission condition through the plurality of power transmission antennas; receive, from the electronic device and through the communications circuit, first information on a change in the position or location, or both, of the electronic device; at least on the basis of the first information, confirm the position or location, or both, of the electronic device in the coordinate system after the change of the electronic device; and control such that a second RF wave is formed under a second transmission condition through the plurality of power transmission antennas, wherein the se

Abstract: A modular wireless power transfer system includes a first wireless transmission system and one or more secondary wireless transmission systems. The first wireless transmission system is configured to receive input power from an input power source, generate AC wireless signals, and couple with one or more other antennas. Each of the one or more secondary wireless transmission systems includes a secondary transmission antenna, the secondary transmission antenna configured to couple with one or more of another secondary transmission antenna, the first transmission antenna, one or more receiver antennas, or combinations thereof. The one or more secondary wireless transmission systems are configured to receive the AC wireless signals from one or more of the first wireless transmission system, another secondary wireless transmission system, or combinations thereof and repeat the AC wireless signals to one or more of the secondary transmission antennas, the one or more receiver antennas, or combinations thereof.

Abstract: A vehicle includes a combustion engine configured to output mechanical power and an electric machine coupled to the engine and configured to convert the mechanical power to electrical power. The vehicle also includes a battery to exchange electrical power with the electric machine. The vehicle further includes a controller programmed to receive user inputs indicative of a desired storage duration and a storage location and monitor a battery state of charge (SOC) while the vehicle is stored. The controller is also programmed to prompt a remote user to approve an engine auto-start in response to the SOC depleting to less than a predetermined threshold during storage, and to auto-start the engine to generate power to recharge the battery in response to remote user approval. The controller is further programmed to inhibit the auto-start of the engine in response to the vehicle being stored in an enclosed storage location.

Abstract: A multi-port laser device used to create multiple laser induced plasma filaments positioned in a useful position in spatial relationship to another filament or filaments, such as interconnecting with each other.

Abstract: An example system charges an electronic device using wirelessly transmitted radio-frequency power (RF) waves. The system includes the electronic device with one or more movable arms. At least one movable arm includes a receiving antenna element. The system further includes a charging pad that includes a housing. The housing includes at least one guiding contour on a surface that is configured for align a position of the electronic device on the surface of the housing. The charging pad further includes transmitting antenna elements that are selectively activated to transmit radio-frequency power waves to the receiving antenna element of the electronic device. The system also includes a transmitter controller integrated circuit (IC) configured to selectively activate a respective transmitting antenna element of the transmitting antenna elements. Activating the respective transmitting antenna element causes transmission of the radio-frequency power waves to the receiving antenna element of the electronic device.

Abstract: A vehicle includes a battery and a controller. The controller is programmed to executed a parameter estimation strategy for the battery during time intervals when the current flowing through the battery is sufficiently dynamic. During periods of generally constant current, the parameters are derived from the last valid parameters from the parameter estimation strategy. During periods of generally constant current in which a battery temperature and/or a state of charge of the battery changes by a predetermined amount, the parameters are derived from historical parameter values.

Abstract: A wireless power receiver includes one or more tunable capacitors in parallel with an inductor. The wireless power receiver adapted to receive an induced voltage input at the inductor due to a magnetic field generated by a wireless power transmitter. The rectifier has an output with a rectified voltage and a rectified current. A controller has a first input for receiving a signal representative of the rectified voltage and a first output for supplying an adjustment signal to the tunable capacitor. The controller includes a processor coupled to the first input and is configured to operate on the signal representative of rectified voltage to produce a desired capacitance value for capacitor and provide the adjustment signal determined so as to adjust a capacitance value of capacitor to the desired capacitance value.

Abstract: A circuit breaker for interrupting a direct current, in particular in a power supply system in a vehicle having a main current path that includes a switch, and having a reed relay for detecting an electric current flow across the main current path. The switch is coupled to the reed relay. Also, a use of a circuit breaker is provided.

Abstract: Discloses embodiments disclosed relate to a cover assembly adapted to be mounted on a service plug socket of a high voltage battery. The assembly includes a brace member including a nesting feature to engage the service plug socket and a first opening for receiving a locking device, and a clamping member, slidably attached to the brace member to move between an open position and a closed position, the clamping member including a second opening for receiving the locking device. The clamping member and the brace member define a cavity, configured to receive the service plug socket, that reduces in size as the clamping member slides from the open position to the closed position. When the service plug socket is inserted in the cavity and the cover assembly is closed, the nesting feature engages with the service plug socket to prevent separation of the cover assembly from the service plug socket.

Abstract: A wireless energy emission device includes: a receiving antenna array, a signal processing module, and an emitting antenna array; wherein the receiving antenna array includes at least two receiving antennas for receiving a positioning signal emitted by a target device to be powered; the signal processing module is configured to determine an emission parameter according to a phase difference between positioning signals received by any two of the receiving antennas and position information of the emitting antenna array; and the emitting antenna array is configured to emit an energy supply signal to the target device to be powered according to the emission parameter.

Abstract: The power supply device includes a plurality of boost converters connected in parallel to boost and supply power from the power storage device, and a control device for controlling each of the boost converters. When the electronic control unit 50 cannot operate the plurality of boost converters by the feedback control, the control device operates only one of the plurality of boost converters by the feed forward control.

Abstract: A method for controlling an operation of a fuel cell of a fuel cell vehicle is provided. The method includes detecting a state of charge (SOC) of a high voltage battery and determining whether the detected SOC of the high voltage battery is within or beyond a preset range from a minimum recommended SOC to a maximum recommended SOC. Power generation of the fuel cell is performed or stopped by comparing a required current of the vehicle with a preset current value required to enter a fuel-cell stop mode in which the power generation of the fuel cell is stopped and a preset current value required to release the fuel-cell stop mode.

Abstract: In accordance with aspects of the present invention, a method and apparatus for demodulating an amplitude-modulated wireless power signal is presented. A method of receiving an amplitude modulated component of a wireless power transmission signal according to some embodiments includes receiving an input signal, wherein the input signal is based on an amplitude modulated wireless power signal; and applying an offset to the input signal to receive the amplitude modulated component. A demodulator according to some embodiments can include a first voltage-to-current converter that receives an input signal related to an amplitude modulated wireless power signal; a second voltage-to-current converter that receives an offset signal; and a summing node that adjusts a first current produced by the first voltage-to-current converter by a second current produced by the second voltage-to-current converter to produce an output signal.

Abstract: The power output system contains a power supply having a supply line and a return line, and controls the flow of electricity to a load based on the temperature of the power supply. It does so via a control circuit, containing a temperature sensor and a switching circuit, connected between the power supply and the load. While the power supply remains relatively cool, the system allows power to flow to the load. When the power supply exceeds a certain threshold, however, the system disconnects the power supply from the load connection and connects it to the return line, bypassing the load and stopping the flow of electricity. Once the power supply has cooled sufficiently, the system reverses the process and reconnects the power supply to the load.

Abstract: A working machine includes: a first generator having: a rotor to be rotated by power from a PTO shaft; a rotor coil provided to the rotor; and a stator coil to generate electricity when magnetizing current is applied to the rotor coil; a working device to be operated by the electricity generated by the first generator; and a converter device to convert surplus electricity not consumed by the working device into the magnetizing current to be applied to the rotor coil.

Abstract: A method and a system for controlling a distributed power generation system are disclosed. The distributed power generation system includes N sub isolated three-port converters and N independent distributed DC power sources in a one-to-one correspondence to the N sub isolated three-port converters, N is a natural number greater than 1; an input-port of each of the sub isolated three-port converters is connected to the corresponding distributed DC power source, bidirectional-ports of the sub isolated three-port converters are connected in parallel to build a low voltage DC bus, and output-ports of the sub isolated three-port converters are connected in series and connected to a medium voltage DC distribution network.

Abstract: According to one embodiment of the present disclosure, there is provided a capacitive coupler structure, including: power transmitters, each including a first metal plate and a second metal plate, and power receivers, each including a third metal plate and a fourth metal plate, where the first metal plate and the third metal plate form a first capacitor, the second metal plate and the fourth metal plate form a second capacitor, and each center of gravity of the first metal plate through the fourth metal plate is aligned on a single vertical line, and the first metal plate through the fourth metal plate form capacitive couplings.

Abstract: A rectenna device includes an antenna (210), a first rectifier (31) to rectify a radio frequency wave input in the antenna (210), an antenna (220), a second rectifier (32) to rectify a radio frequency wave input in the antenna (220), and a capacitive coupler (5) to form an open circuit in response to direct current and to form a short circuit in response to a fundamental wave. The first rectifier (31) includes a ground (GND) conductor (410) to be a reference potential, and the second rectifier (32) includes a GND conductor (420) to be a reference potential. The GND conductor (410) and the GND conductor (420) are connected with the capacitive coupler (5) in between. The first rectifier (31) and the second rectifier (32) are connected in series.

Abstract: An electric energy transmission system which does not need a reservation has a generator generating a multi-phase electric current, a converter converting it into another electric current, an electric current network connected with the converter and having a first group of electric current lines extending towards electric current users and a second group of electric current ones electrically connecting the electric current lines of the first group with each other, and a plurality of consumer blocks connected with the network and having users which use different electric currents and further converters converting the electric current transmitted by the network into the different electric currents and supplying the different electric currents to the electric current users.