ABB E-mobility

A method for determining a connection configuration of a DC charging system (100), and a DC charging system (100) including a configuration controller to determine the connection configuration, are provided. The DC charging system (100) includes a first primary-side terminal (UUF1) connectible to a first power module (PM1) of a DC power supply (PU); a second primary-side terminal (UUF2) connectible to a second power module (PM2) of the DC power supply (PU); a switch system (S1, S2, S3, S4) being operable to select between an open position to disconnect the first primary-side terminal (UUF1) from the first secondary-side vehicle connection terminal (UUS1) and a first single-supply position to connect the first primary-side terminal (UUF1) to the first secondary-side vehicle connection terminal (UUS1); a first insulation monitoring device (IMD1) provided to the first secondary-side vehicle connection terminal (UUS1); a first secondary-side voltage detector (V1) directly provided to the first insulation monitoring device (IMD1); and a first primary-side voltage detector (V2, V3) directly provided to the first power module (PM1). The method, e.g. performed at least in part by the configuration controller, includes: operating the first insulation monitoring device to apply a common mode voltage at a positive DC pole (UUS1+) and/or at a negative DC pole (UUS1-) of the first vehicle connection terminal (UUS1), or operating the first power module (PM1) to apply a voltage at the first primary-side terminal (UUF1); operating the switch system (S1, S2, S3, S4) in a sequence between the open position and the first single-supply position, and in each switch position, detecting a voltage with each of the first secondary-side voltage detector (V1) and the first primary-side voltage detector (V2, V3); and determining the connection configuration from the detected voltages.

A high-power direct current, HPDC, charging system for charging electric vehicles is provided. The HDPC charging system comprises a housing that defines a sealed compartment and a chimney compartment. It further comprises heat-generating electrical components located within the sealed compartment. The HDPC charging system is configured to deliver an output power of 20 kilowatts or more. The housing includes a thermally conductive portion providing thermal transfer between the sealed compartment and the chimney compartment. The housing further comprises a lower inlet opening and an upper outlet opening that enable an airflow between the chimney compartment and ambient air. The chimney compartment defines a substantially vertical airflow path from the lower inlet opening to the upper outlet opening passing along the thermally conductive portion. The sealed compartment is airtight relative to the chimney compartment and to ambient air.

A system is disclosed for detecting discharges in an electric equipment, the system comprising a first metallic conductor and a second metallic conductor which are spaced apart from each other and being configured for having an electric potential between each other. The system further comprises a third metallic conductor, placed between the first and second conductor. A galvanic connection electrically connects the third conductor with the first conductor through a resistor. The system further comprises a detection unit for detecting a current flow through the galvanic connection caused by a discharge through the gap between the second and third conductors.

An electric vehicle charging station for charging an electric battery of an electric vehicle includes a charging cable (130) having a charging connector (140) at one end (131) of the charging cable (130) and a fixing point (132) spaced from the one end (131) of the charging cable (130). The charging cable (130) has a given stiffness and forms a predefined bend between the fixing point (132) and the one end (131). The charging station further includes a support device (110) having a fastening (120) fixing the charging cable (130) at the fixing point (132) in a given position so that the charging connector (140) is in a predetermined charging position which facilitates insertion of the charging connector (140) into the charging socket of an electric vehicle, and a connector holder (150) for receiving the charging connector (140) when the charging connector (140) is in a parking position. The charging connector (140) is movable from the charging position into the parking position by a pivoting movement which causes a torsion of the charging cable (130) bringing the charging connector (140) in an inclined orientation (142) relative to a normal orientation (141) of the charging connector (140) in the charging position. The connector holder (150) is configured to receive the charging connector (140) in the inclined orientation (142).

A method for controlling an electric vehicle charger (100) over a network by a user using a mobile device (110) of the user, the method comprising:- providing, to the user's mobile device, an authentication token related to the electric vehicle charger, the authentication token being available to the user locally at a location of the electric vehicle charger;- verifying, by the user's mobile device, the authentication token;- obtaining, by the user's mobile device, an access token of the electric vehicle charger based on the verified authentication token;- performing an opening handshake between the user's mobile device and the electric vehicle charger over the network based on the access token of the electric vehicle charger;- upon the opening handshake, establishing a secure full-duplex communication channel (120) between the user's mobile device and the electric vehicle charger using a transmission control protocol connection over the network;- receiving, by the electric vehicle charger, at least one command from the user's mobile device over the established secure full-duplex communication channel; and carrying out the received at least one command by the electric vehicle charger; and- receiving, by the user's mobile device, status information data from the electric vehicle charger over the established secure full-duplex communication channel; and displaying the received status information data by the user's mobile device.

Electric vehicle supply equipment, EVSE, configured for providing power for charging a floating vessel with a converter having an input side configured to be connected to a power supply infrastructure, and an output side configured for providing a direct current, DC, charging power, the output side comprising a +DC output line and a -DC output line, and a voltage limiting device with a first terminal and a second terminal, the first terminal being configured to be grounded to a shoreside protective earth, PE, connection of the power supply infrastructure. +DC and -DC EVSE terminals are configured to be connected to corresponding shipside +DC and -DC terminals of the floating vessel. The EVSE earth terminal is configured to be connected to a shipside protective earth, SPE, terminal of the floating vessel. The EVSE earth terminal is connected to the second terminal of the voltage limiting device.

A buck converter circuit according to the disclosure includes a pre-charging switch (10), a switching element Q1 (11), a switching element Q2 (12), a switching element Q3 (13), a switching element Q4 (14), a flying capacitor (20), a voltage supply node (40), a first flying capacitor node (41), a second flying capacitor node (41), a switch node (43) and a control system (50). The voltage supply node (40), the pre-charging switch (10) and the first flying capacitor node (41) are sequentially connected in series. The voltage supply node (40), the switching element Q1 (11) and the first flying capacitor node (41) are sequentially connected in series. The first flying capacitor node (41), the flying capacitor (20), the second flying capacitor node (41) and the switching element Q4 (14) are sequentially connected in series. The first flying capacitor node (41), the switching element Q2 (12), the switch node (43), the switching element Q3 (13) and the second flying capacitor node (41) are sequentially connected in series. The control system (50) is configured for executing a pre-charging process (100) and a cyclic converting process (200). During the pre-charging process (100), the control system (50) controls the pre-charging switch (10) and the switching element Q4 (14) to be conductive to build up a voltage difference in the flying capacitor (20). During the cyclic converting process (200) the control system (50) controls the pre-charging switch (10) to be isolating when the switching element Q1 is isolating.

The present disclosure relates to a cooling system and a charging pile. The cooling system (100) comprises: at least one fan (110) configured to draw airflow from the radial outside during operation and discharge the drawn airflow in the axial direction; and at least one radiator (120), each radiator (120) being disposed to circumferentially surround a corresponding fan (110) of the at least one fan (110), wherein the radiator (120) at least includes a curved section (125) that at least partially follows the contour of the corresponding fan (110); wherein the radiator (120) comprises a plurality of radiator fins (122) arranged in a stacked manner relative to one another along the axial direction, and a gap (121) is formed between at least one pair of adjacent radiator fins (122) in the height direction perpendicular to the circumferential direction and the axial direction, the gap (121) allowing airflow to flow from the circumferential outside of the radiator (120) toward the circumferential inside of the radiator (120).

The invention relates to a method for charging an EV by an EVSE and a respective apparatus. The method comprises establishing a physical connection between the EV and the EVSE, initiating a payment authentication process, recognizing, by the EVSE, an EV identifier, entering an energy transfer stage and providing the price for charging on a display. A payment authentication state is defined for the payment authentication process. The payment authentication state comprises at least an ongoing state and an approved state. The energy transfer stage is entered irrespective of whether the payment authentication state is the ongoing state or the approved state. The price for charging is provided on a display mounted to the housing of the EVSE.

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