A processor of a vehicle stops charging when an actually measured charging ratio is equal to or higher than a target charging ratio in a charging phase. While the target charging ratio is higher than a charging threshold value, when the actually measured charging ratio is equal to or lower than the charging threshold value, the processor transmits to a charging apparatus, the actually measured charging ratio as a transmission charging ratio, when the actually measured charging ratio is higher than the charging threshold value and lower than the target charging ratio, the processor transmits to the charging apparatus, a value equal to or smaller than the charging threshold value as the transmission charging ratio, and when the actually measured charging ratio is equal to or higher than the target charging ratio, the processor transmits to the charging apparatus, the actually measured charging ratio as the transmission charging ratio.

A power converter, includes: a first terminal, a second terminal, a third terminal and a fourth terminal; stored-energy-source terminals, to which a stored energy source can be connected; four inverter bridge branches, which are formed from semiconductor switching devices, the inverter bridge branches each having a center tap, each center tap being assigned to one of the terminals, and the inverter bridge branches being interconnected and controllable such that electrical energy can be transferred bidirectionally between the stored-energy-source terminals and the first terminal, the second terminal, the third terminal and/or the fourth terminal; and a control unit, which is designed to control the semiconductor switching devices of the inverter bridge branches.

Exemplary embodiments are directed to bidirectional wireless power transfer using magnetic resonance in a coupling mode region between a charging base (CB) and a battery electric vehicle (BEV). For different configurations, the wireless power transfer can occur from the CB to the BEV and from the BEV to the CB.

A power distribution apparatus includes: a power transmitter to which a power transmission cable for supplying power to an external device is connected; a fast charger to which a fast charging cable for receiving power from a power source is connected; a processor configured to, in response to an execution command of a fast charging mode and a load power supply mode, distribute power supplied through the fast charging cable, transfer a portion of the distributed power to the external device, and transfer a remainder of the distributed power to a battery; and a power converter provided between the fast charger and the power transmitter, and configured to, when transferring the portion of the distributed power to the external device, convert a voltage of the power supplied through the fast charging cable, and transfer the voltage-converted power to the power transmitter.

A contactless battery system includes a sealable dustproof and waterproof case that houses a battery unit and at least one wireless power transmission coupler connected to the battery unit. The at least one wireless power transmission coupler is disposed with respect to at least one face of the sealable case to enable magnetic inductive signaling for charging, discharging, and communication with the battery.

Without physical contacts, the battery is inherently safe since voltage and current are not available to the touch. The lack of physical contacts also means that contact wear is eliminated and the battery modules have the benefit of inherent galvanic isolation. Since the battery system is sealed, internal intrusion detection systems may be used to detect improper attempts at battery changes or attacks on the electronics containing the usage and charging records in an attempt to increase the battery unit's value on the secondary battery market.

A charging controller carries out charging control of a power storage mounted on a vehicle. The vehicle includes a DC charging inlet. The charging controller carries out first charging control when a charging cable which is not a prescribed charging cable is connected to the DC charging inlet and carries out second charging control when the prescribed charging cable is connected to the DC charging inlet. For example, a time period for ground fault detection carried out during charging of the power storage is set differently between first charging control and second charging control. Alternatively, a response delay margin of a charging command is set differently between first charging control and second charging control.

A fast charging system for electrically driven vehicles and a method for forming an electrically conductive connection between a vehicle and a stationary charging station, the fast charging system having a contact device, a charging contact device and a positioning device, said contact device or said charging contact device being disposeable on a vehicle, said charging contact device being electrically contacted using the contact device when in a contact position, said contact device being positioned in a longitudinal and/or transverse direction with respect to the charging contact device as well as being moved to the contact position by means of the positioning device, said charging contact device comprising a charging-contact-element carrier having charging contact elements, said charging contact elements each forming a strip-shaped charging contact surface, said contact device comprising a contact element carrier having contact elements, said contact elements each forming a contact surface which is smaller than the charging contact surfaces, said contact elements being electrically contacted with the charging contact elements for forming contact pairs in each instance when in the contact position, the charging contact surfaces and the contact surfaces being disposed such in the longitudinal direction with respect to each other that a respective physical contact between the charging contact surfaces and the contact surfaces is formed in a defined order at respective longitudinal ends of the charging contact surfaces.

A communication control device comprises: an antenna; and a control unit that controls wireless communication related to wireless power transfer to a power receiver device through a power transmitter device. The control unit acquires via the antenna a radio wave status of each of a plurality of channels related to the wireless communication. The control unit acquires a power transmission status of the wireless power transfer. The control unit sets, based on the acquired power transmission status, switching conditions for switching the channel according to the radio wave status. The control unit causes the channel to be switched based on the radio wave status and the switching conditions. The control unit causes the wireless communication to continue on the switched channel.

An evaluation jig comprises a pair of female terminals connectable to a pair of male terminals of a charging connector, and an adjustment member that can adjust contact resistance of the female terminal and the male terminal. The female terminal is reducible in diameter. The adjustment member can apply an external force to the female terminal to reduce the female terminal in diameter.

An apparatus comprises a power electronic energy conversion system comprising a first energy storage device configured to store DC energy and a first voltage converter configured to convert a second voltage from a remote power supply into a first charging voltage configured to charge the first energy storage device. The apparatus also includes a first controller configured to control the first voltage converter to convert the second voltage into the first charging voltage and to provide the first charging voltage to the first energy storage device during a charging mode of operation and communicate with a second controller located remotely from the power electronic energy conversion system to cause a second charging voltage to be provided to the first energy storage device during the charging mode of operation to rapidly charge the first energy storage device.