Abstract: The present disclosure provides a forced symmetry IMD and a method to control the forced symmetry IMD. The system comprises an electric system power source configured to deliver electrical power to a bus, the bus including a first bus bar and a second bus bar; a common node connected across the first bus bar and the second bus bar, the common node having a common voltage; and a forced symmetry insulation monitoring device (IMD) disposed along an IMD node connected to at least one of the first bus bar and the second bus bar, the forced symmetry IMD comprising a connection to ground and one or more IMD power sources, wherein the one or more IMD power sources of the forced symmetry IMD is configured to control the common voltage on the common node based on a currently detected common voltage and a reference voltage signal.

Abstract: A charging arrangement includes an electrical vehicle and a charging device configured for charging the electrical vehicle with electrical energy, where the electrical vehicle includes a first charging connector, and the charging device includes a second charging connector configured for connecting with the first charging connector, a bi-stable mechanics to which the second charging connector is attached and which is configured for holding the second charging connector in two stable equilibrium positions, whereby in one stable equilibrium position the second charging connector is connected to the first charging connector and the other stable equilibrium position the second charging connector is unconnected to the first charging connector and an actuation device configured for moving the second charging connector between the two stable equilibrium positions.

Abstract: A connector for electric vehicle supply equipment includes: a housing that includes one or more electrical coupling members that are connectable between the electric vehicle supply equipment and a mating inlet of an electric vehicle to supply electric power to the vehicle. The housing includes a sensor for detecting light within the housing and outputting a signal in response to a detection of light within the housing to interrupt or disable the supply of electric power to the vehicle through the connector.

Abstract: A system and method for heavy-current charging cables for charging an electric vehicles includes a central heavy-current wire extending in a longitudinal direction, a plurality of heavy-current power wires comprising a power conductor and a power wire insulation surrounding said power conductor, the heavy-current power wires extending parallel to the central wire, a liquid tight inner hose extending in the longitudinal direction and surrounding the heavy-current central wire and the heavy-current power wires thereby defining a first hollow area comprising liquid coolant to flow between the heavy-current central wire and the heavy-current power wires along the longitudinal direction, and a liquid tight outer hose extending in the longitudinal direction and surrounding the inner hose thereby defining a second hollow area comprising liquid coolant to flow between the inner hose and the outer hose along the longitudinal direction.

Abstract: An electric Vehicle Supply Equipment (EVSE) multichannel insulation monitoring device (MIMD) for insulation monitoring or earth leakage current monitoring, wherein the EVSE multichannel insulation monitoring device comprises multiple monitoring channels and wherein the EVSE multichannel insulation monitoring device includes a control and monitor device configured to individually monitor the insulation or earth leakage current of each monitoring channel.

Abstract: An arrangement for charging of electric vehicles includes a charging connector and a charging cable. The connector includes a connector body with first and second zones, the two zones being separate from each other. The first zone hosts a mating interface with electrical contacts for mating the connector with a corresponding socket of an electric vehicle. The electrical contacts are electrically coupled to the cable. The second zone includes a tube in which the cable is guided from an opening of the tube, which is arranged on that side of the second zone that faces away from the first zone to the electrical contacts, which are located in the first zone, and a handle for grabbing the connector with a human hand, the handle being separate from the tube. The second zone is Y-shaped where the tube is formed by one upper leg and the lower of the Y.

Abstract: An objective of the disclosure is to provide a power supply cell of a power supply system and a power supply system using the same.

Abstract: 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.

Abstract: An automated charging system for an electric vehicle is disclosed that includes a plug with a built-in camera assembly. The camera assembly captures images of a charging port of the electric vehicle, which are processed by one or more processors to estimate the location of the charging port relative to the plug. A multi-stage localization architecture is described that includes a gross localization procedure and a fine localization procedure. The gross localization procedure can implement a first convolutional neural network (CNN) to estimate a position of an object in the image. The fine localization procedure can implement a second CNN to estimate a position and orientation of the object. Actuators for moving the plug in a three-dimensional space can be controlled by the multi-stage localization architecture.

Abstract: A plug connection system that autonomously charges an electric vehicle (EV) is provided. The method includes: adjusting configuration settings of an image capturing device; capturing an image using the image capturing device, wherein a portion of the image comprises an optically distinctive object associated with a charging portal of the EV, and wherein the image comprises a plurality of pixels; applying a pixel value threshold associated with a pixel metric to the image to filter the plurality of pixels of the image to a first subset of pixels; determining, based on filtering the plurality of pixels to the first subset of pixels, a location of the optically distinctive object associated with the charging portal of the EV within the image; and providing information to maneuver a robotic arm to a physical position associated with the location of the optically distinctive object within the image.

Abstract: A connector for electric vehicle supply equipment includes: a housing; a first electrical coupling member supported by the housing and that mates with an inlet of an electric vehicle, the first electrical coupling member including a first pin part; a second electrical coupling member supported by the housing and that mates with the inlet, the second electrical coupling member including a second pin part; and a conductive barrier supported by the housing that extends between the first and second pin parts. The conductive barrier interacts with at least one of the first and second pin parts to provide a conduction path for electrical power monitorable to evaluate electrical isolation of the first and second electrical coupling members and avoid electrical arcing or short-circuiting.

Abstract: A DC contactor arrangement for bidirectional power switching includes a DC+ contactor for connecting a power source with a load, and a DC? contactor for connecting the power source with the load. At least one of the DC+ or DC? contactors is a unidirectional DC contactor. The DC+ contactor and the DC? contactor are configured to be switched at different times, when the DC+ contactor and the DC? contactor are under load.

Abstract: An electric charging system includes an automatic connection device (ACD) outside a chargeable device. The ACD is electrically coupled to an energy source and includes a plug head electrically and mechanically connectable to the chargeable device and a first mechanism that positions the plug head at an inlet. The head includes a plug head connector with electrically conductive pins and a plug head lock with a first shape. The inlet includes electrically conductive sockets complementary to the electrically conductive pins; a plug head coupler including a shape that is complementary to the first shape and mechanically couples with the plug head via the plug head lock; and a second mechanism that mechanically and electrically couples the pins to the sockets. The second mechanism can produce a force greater than the first mechanism, and the first mechanism moves with greater translational and rotational precision than the second mechanism.

Abstract: A cooling arrangement for being arranged between a charging connector of an electric vehicle charging system and a charging socket of an electric vehicle includes a power link that is electrically and thermally conductive and configured for being arranged between a charging contact of the charging connector and a socket contact of the charging socket, wherein the power link is thermally connected to a cooling unit.

Abstract: An apparatus for directing a connection element is provided. The apparatus includes a robotic element for manipulating the connection element and a computer vision system communicatively coupled to the robotic element. The computer vision system includes one or more processors configured to: receive a first frame representing an environment at a first time, the environment at the first time comprising marker light of a first mode and other light; receive a second frame of the environment at a second time, the environment at the second time comprising marker light of a second mode and the other light; compare the first frame to the second frame to determine a difference in lighting in the environment between the first time and the second time; and differentiate the marker light of the first mode and the marker light of the second mode from the other light based on the determined difference.

Abstract: A communications interface between electric vehicle supply equipment and an electric vehicle includes: a first connection for connecting to a controller of the electric vehicle supply equipment; a second connection for connecting to a controller of the electric vehicle; and an Ethernet interface coupling the first and second connections for communication between the controller of the electric vehicle supply equipment and the controller of the electric vehicle.

Abstract: A computer-implemented method for method for electric vehicle charging access control includes a charging station for electric vehicles that detects presence of an electric vehicle available for establishing a wireless data connection, establishes a wireless data connection with the electric vehicle, receives, via the wireless data connection, identification data identifying the electric vehicle, and authorizes the charging of the electric vehicle in response to determining that the electric vehicle is registered as eligible for using the charging station based on the identification data.

Abstract: A converter arrangement connects to a DC source or load and to a plurality of AC terminals. Each converter arrangement includes a DC part with two capacitors arranged in parallel to the DC source or DC load and a neutral DC point between them. At least one AC leg is connected to a neutral AC point via an AC leg capacitor. A pre-charge unit is arranged at each leg of the AC terminal. The method includes opening a decoupling switch and all second AC switches; loading the pre-charge unit; sequentially closing each second AC switch; measuring at each closing step a voltage between each AC leg of the second converter arrangement; and determining the stuck AC switch of the second converter arrangement based on the measured voltage.