A system for supplying electrical energy to an energy-absorber mobile device having two electrically conductive secondary terminals includes a power-source base with electrically conductive primary terminals configured to be arranged in contact with the two secondary terminals when the mobile device is positioned on the base; a supply and control subsystem having a line selector whose outputs are connected to the primary terminals, a rectifier and programmable power supply providing energy, and a mini-processor connected to the line selector and to the rectifier and programmable power supply. The line selector has two input lines, between which a voltage difference higher than zero is applied and which is configured to apply the voltage difference cyclically to all possible pairs of output lines based on the commands received from the mini-processor.

An energy conversion device is provided, including a motor coil (11), a bridge arm converter (12), and a bidirectional bridge arm (13). The bridge arm converter (12) is connected to the motor coil (11) and the bidirectional bridge arm (13). The motor coil (11), the bridge arm converter (12), and the bidirectional bridge arm (13) are all connected to an external charging port (10). Both the bridge arm converter (12) and the bidirectional bridge arm (13) are connected to an external battery 200. The motor coil (11), the bridge arm converter (12), and the external charging port (10) form a DC charging circuit for charging the external battery 200. The motor coil (11), the bridge arm converter (12), the bidirectional bridge arm (13), and the external charging port (10) form an AC charging circuit for charging the external battery (200). The motor coil (11), the bridge arm converter (12), and the external battery (200) form a motor drive circuit.

The present disclosure relates to a power supply device for an electric excavator, the power supply device including a power supply unit configured to supply power of a battery to an electric motor unit, a first charging port connected to the power supply unit and configured to supply first external power to the battery, an on-board charger (OBC) connected to the power supply unit and configured to convert alternating current into direct current when alternating current power is inputted, and a second charging port connected to the OBC and configured to supply second external power to the OBC, in which the power supply unit supplies charging power of the OBC or supplies the charging power of the OBC and power of the battery power to the electric motor unit on the basis of the amount of required power of the electric motor unit and the amount of charging power of the OBC.

A plug connection system that autonomously charges an electric vehicle (EV) is provided. The method includes: obtaining a trained machine learning (ML) model from a back-end server; capturing an image using an image capturing device of the charging system, wherein a portion of the image comprises the EV charging portal; inputting the image into the trained ML model to determine one or more regions of interest associated with the EV charging portal within the image; determining a location of the EV charging portal based on the one or more determined regions of interest and one or more image processing techniques; and providing information to maneuver the robotic arm of the charging system to a physical position based on the determined location of the EV charging portal.

An electrical connector apparatus that magnetically aligns electrical contacts in a suspended magnetic connector with mating electrical contacts in a vehicle magnetic connector and holds the connectors together during an electric vehicle charging process.

The disclosure relates to the technical field of charging, and in particular, relates to a charging apparatus. A charging apparatus includes a support unit; a charging bow lifted and assembled on the support unit; a retractable mechanism, where the retractable mechanism retracts a cable, and a free end of the cable pulls the charging bow up and down; and a straining member assembled on a mounting point of the cable near the free end. After the charging bow is docked with a pantograph, the retractable mechanism continues to release the cable to relax the cable. Under the action of the straining member, the cable between the mounting point and the retractable mechanism is in a strained state, and the cable between the mounting point and the charging bow forms a cable slack section.

An example operation includes one or more of providing to a charging station a distance desired to be driven by a transport and determining, by the charging station, an amount of energy to retrieve from the transport such that a residual amount of energy in the transport is equivalent to the distance desired to be driven.

A housing body (1) is designed in order to be mounted at least in regions in a mounting opening of an outer skin or outer body component (5) of a motor vehicle, and has an outer flange region (6), which surrounds the housing body (1) at least in regions and defines the outer geometry of the housing body at least in regions, the flange region having a multidimensional shape and being designed in order to rest against a support surface of the outer skin or outer body component (5) in the installed state of the housing body. The shape of the outer flange region (6) is designed such that the housing body (1) is mountable, as needed, in a mounting opening, mirrored relative to the motor vehicle longitudinal axis, in a left- or right-sided outer skin or outer body component, by moving the housing body from left to right.

A distributed charging system (1) comprising a plurality of charging stations (2) transportable by charging station transport trucks (3), wherein each charging station transport truck (3) of the distributed charging system (1) has at least one lifting mechanism (4) adapted to lift at least one charging station (2) deployed on a ground floor onto a transport platform (3A) of the charging station transport unit (3) for transport to another location, wherein each transportable charging station (2) has at least one battery pack (2D) with rechargeable battery cells adapted to store electrical energy which is used to charge batteries of electrically powered vehicles (6) connected to charging stations (2) deployed on the ground floor, wherein the housing (2A) of the portable charging station (2) comprises a ground locking interface unit (2C) adapted to lock the charging station (2) mechanically and/or electrically to a base frame (5) of the distributed charging system (1) installed on the ground floor.

A liquid-cooled charging system for a vehicle is configured to dissipate heat generated during charging (including fast-charging) of an electrically-powered vehicle. The liquid-cooled charging system includes a charging assembly having an interface assembly configured to support a charging plug of a charging station and an energy transfer assembly configured to electrically couple the charging station to the battery of the vehicle during charging. Components of the charging assembly and energy transfer assembly also define a fluid circuit. A coolant system of the liquid-cooled charging system is fluidly connected to the fluid circuit, allowing coolant to flow through the fluid circuit to dissipate heat from the charging assembly components during charging of the vehicle.