A vehicle power supply device is provided. The vehicle power supply device includes: a fixed base; a scissor-fork lifting mechanism, where the scissor-fork lifting mechanism is mounted on the fixed base; a power supply head, where the power supply head is mounted on the scissor-fork lifting mechanism and is driven by the scissor-fork lifting mechanism to ascend or descend; and a drive device, where the drive device includes a drive unit and a transmission unit configured to convert rotational movement into linear movement. The drive unit and the transmission unit are stacked along a lifting direction of the scissor-fork lifting mechanism. The drive unit is connected with the scissor-fork lifting mechanism by the transmission unit to drive the scissor-fork lifting mechanism to ascend or descend.

The AC/DC converter according to one embodiment of the present invention comprises: a power unit comprising a plurality of power input lines; a main bridge circuit into which input power is input via the power unit; a relay connected in parallel to both ends of any one of the power input lines; and a control unit for controlling the opening/closing of the relay on the basis of the type of input power.

A tire and wheel assembly comprises: a tire including a tread portion; a wheel including a rim portion on which the tire is mounted; and a power reception coil, wherein one or more circumferential main grooves extend in a tire circumferential direction on a tread surface of the tread portion, and at least one circumferential main groove satisfies OTD≥SBG in a reference state.

Described herein is an electric vehicle charging arrangement for charging an electric vehicle. The electric vehicle charging arrangement includes: an electric vehicle charger configured for providing a direct current (DC) to the electric vehicle, a power cabinet configured for providing a DC to the electric vehicle charger, and a direct current bus arranged between the power cabinet and the electric vehicle charger and configured to transport the DC from the power cabinet to the electric vehicle charger, where a capacitive filter is installed on the DC bus and in the electric vehicle charger.

An electric vehicle charging plug includes a housing for connecting to an electric vehicle, a main housing, a sensor comprising at least one conductive path embedded in a wall or arranged on the surface of the housing and/or main housing, and a control unit wherein the sensor is configured to detect the crack of the housing and/or the main housing.

The present invention presents a method providing an additional service during electric vehicle charging by (a) the electric vehicle charger (200) detecting connection with an electric vehicle (100) via a charging cable; (b) the electric vehicle charger (200) exchanging charging messages through a charging port in a PLC modem, when the connection is detected in step (a); and (c) the electric vehicle charger (200) providing an additional service for the electric vehicle once the charging begins, and therefore, providing additional services such as software updates, vehicle contents updates requested by a driver during the charging of the electric vehicle, and thus providing convenience for the car owners without visiting car diagnostic service center.

An Inductive Power Transfer System pickup provides a controlled AC power supply by controlled variation of the phase angle between the pickup coil induced voltage (jwMI) and the tuning capacitor C voltage. The phase angle can be varied by maintaining the tuning capacitor C voltage substantially constant for a selected time period. Switches S1 and S2 may be used to clamp the tuning capacitor C voltage at substantially zero volts during the selected time period. Switch S1 can be operated to prevent a rise in positive voltage across the tuning capacitor, and switch S2 can be used to prevent the voltage across the tuning capacitor from going negative.

A computer implemented method for managing charge availability of a charge unit (CU) to obtain charge for a battery of an electric vehicle (EV) is provided. The CU includes a computer for processing at least part of the method and for communicating with a server over a network. The method includes receiving, by the server, status information from the computer of the CU. The method includes sending to the computer of the CU instructions to make a reservation for the CU. The reservation is for a user account that has requested a desire to charge the battery of the electric vehicle of the user at the CU or another CU. The method includes sending, by the server, a confirmation for the reservation to the user account. The confirmation is viewable via a device having access to the server via the user account. The method includes sending, by the server, a data regarding a time of availability of the CU to the user account for the reservation. The computer of the CU is configured to display a visual indicator regarding the reservation of the CU.

A charging system for an autonomous rover includes a charging interface with contacts that interface with the autonomous rover, a rover power source for the autonomous rover, and circuitry operated by the autonomous rover for controlling charging of the rover power source.

In certain aspects, an enclosure for a wireless power transfer pad is disclosed. The enclosure includes a cover shell configured to be positioned over a portion of the wireless power transfer pad configured to face a wireless power receiver when wirelessly transferring power, wherein at least a portion of the cover shell is made of a heat resistant material.