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    High-availability low-impact vehicle charger
    2.
    发明授权
    High-availability low-impact vehicle charger 有权

    公开(公告)号：US12071031B2

    公开(公告)日：2024-08-27

    申请号：US17816205

    申请日：2022-07-29

    Applicant: FREEWIRE TECHNOLOGIES, INC.

    Inventor： Nicholas Seroff ,  Tabish Shibly ,  Richard Steele ,  Ravi Lavu

    IPC: B60L53/10 ,  B60L53/16 ,  B60L53/62 ,  H02J7/04 ,  H02J7/00

    CPC classification number: B60L53/11 ,  B60L53/16 ,  B60L53/62 ,  H02J7/04 ,  B60L2210/40 ,  H02J7/0013

    Abstract: A vehicle charging apparatus is described herein, which may include a battery pack comprising a plurality of individual batteries, a power input port receiving electrical power at a first wattage, an AC-to-DC conversion circuit configured to provide DC power to charge groups of batteries in the plurality of individual batteries, a power conversion circuit configured to condition a DC output of at least one group of batteries to provide a charging current output to a vehicle via a coupling, and a processing circuit configured to control the power conversion circuit to provide the charging current at a second wattage greater than the first wattage. The first wattage may be actively or inherently limited to a level less than the second wattage in order to provide fast DC charging with a limited power input.

    Energy Management for Multiple Charging Stations
    3.
    发明公开
    Energy Management for Multiple Charging Stations 审中-公开

    公开(公告)号：US20240198843A1

    公开(公告)日：2024-06-20

    申请号：US18243233

    申请日：2023-09-07

    Applicant: FREEWIRE TECHNOLOGIES, INC.

    Inventor： Nicholas Seroff ,  Tabish Shibly

    IPC: B60L53/67 ,  B60L53/30 ,  H02J7/00

    CPC classification number: B60L53/67 ,  B60L53/305 ,  H02J7/0014

    Abstract: In order to ensure reliable power for charging electric vehicles is available at each charging station at a charging site having multiple charging stations, the systems and methods disclosed herein provide for charge transfers between batteries of such charging stations. A plurality of charging stations at a charging site are connected via a direct current (DC) bus in order to transfer energy between the charging stations, such as to balance the energy stored at the respective batteries of the charging stations. Each charging station includes a system controller controlling operation of the charging station and a DC bus connection to provide DC current from the battery to the DC bus and to provide DC current from the DC bus to the battery, as controlled by the system controller. A centralized management system may also communicate with and control aspects of operation of the respective system controllers of the charging stations.

    Energy management for multiple charging stations
    4.
    发明授权
    Energy management for multiple charging stations 有权

    公开(公告)号：US11772509B1

    公开(公告)日：2023-10-03

    申请号：US18066965

    申请日：2022-12-15

    Applicant: FREEWIRE TECHNOLOGIES, INC.

    Inventor： Nicholas Seroff ,  Tabish Shibly

    IPC: B60L53/67 ,  B60L53/30 ,  H02J7/00

    CPC classification number: B60L53/67 ,  B60L53/305 ,  H02J7/0014

    Abstract: In order to ensure reliable power for charging electric vehicles is available at each charging station at a charging site having multiple charging stations, the systems and methods disclosed herein provide for charge transfers between batteries of such charging stations. A plurality of charging stations at a charging site are connected via a direct current (DC) bus in order to transfer energy between the charging stations, such as to balance the energy stored at the respective batteries of the charging stations. Each charging station includes a system controller controlling operation of the charging station and a DC bus connection to provide DC current from the battery to the DC bus and to provide DC current from the DC bus to the battery, as controlled by the system controller. A centralized management system may also communicate with and control aspects of operation of the respective system controllers of the charging stations.

    Energy Management for Connected Charging Stations with Bidirectionality
    5.
    发明公开
    Energy Management for Connected Charging Stations with Bidirectionality 审中-公开

    公开(公告)号：US20240204522A1

    公开(公告)日：2024-06-20

    申请号：US18231311

    申请日：2023-08-08

    Applicant: FREEWIRE TECHNOLOGIES, INC.

    Inventor： Nicholas Seroff ,  Tabish Shibly

    IPC: H02J3/14 ,  B60L53/14 ,  H02J3/00

    CPC classification number: H02J3/144 ,  B60L53/14 ,  H02J3/0075

    Abstract: In order to ensure reliable power for charging electric vehicles is available at each charging station at a charging site having multiple charging stations, the systems and methods disclosed herein provide for charge transfers between batteries of such charging stations. A plurality of charging stations at a charging site are connected via local alternating current (AC) circuit in order to transfer energy between the charging stations, such as to balance the energy stored at the respective batteries of the charging stations. Each charging station includes a system controller controlling operation of the charging station and a bidirectional inverter to convert AC input power from a power grid or the local AC circuit to direct current (DC) power for storage in a battery of the charging station and to convert DC power from the battery to AC output power to the local AC circuit, as controlled by the system controller.

    Energy management for connected charging stations with bidirectionality
    8.
    发明授权
    Energy management for connected charging stations with bidirectionality 有权

    公开(公告)号：US11749991B1

    公开(公告)日：2023-09-05

    申请号：US18066970

    申请日：2022-12-15

    Applicant: FREEWIRE TECHNOLOGIES, INC.

    Inventor： Nicholas Seroff ,  Tabish Shibly

    IPC: H02J3/14 ,  H02J3/00 ,  B60L53/14

    CPC classification number: H02J3/144 ,  B60L53/14 ,  H02J3/0075

    Abstract: In order to ensure reliable power for charging electric vehicles is available at each charging station at a charging site having multiple charging stations, the systems and methods disclosed herein provide for charge transfers between batteries of such charging stations. A plurality of charging stations at a charging site are connected via local alternating current (AC) circuit in order to transfer energy between the charging stations, such as to balance the energy stored at the respective batteries of the charging stations. Each charging station includes a system controller controlling operation of the charging station and a bidirectional inverter to convert AC input power from a power grid or the local AC circuit to direct current (DC) power for storage in a battery of the charging station and to convert DC power from the battery to AC output power to the local AC circuit, as controlled by the system controller.

    Energy Management for Non-Charging Load at Site with Charging Station Bidirectionality
    10.
    发明公开
    Energy Management for Non-Charging Load at Site with Charging Station Bidirectionality 审中-公开

    公开(公告)号：US20240201642A1

    公开(公告)日：2024-06-20

    申请号：US18066975

    申请日：2022-12-15

    Applicant: Freewire Technologies, Inc.

    Inventor： Nicholas Seroff ,  Tabish Shibly

    IPC: G05B19/042

    CPC classification number: G05B19/042 ,  G05B2219/2639

    Abstract: In order to provide power for non-charging loads located at charging sites, the systems and methods disclosed herein provide for controlling electric vehicle charging stations to provide alternating current (AC) power to the non-charging loads from power stored in their batteries. One or more charging stations are configured to charge their batteries from an AC power source that also powers a non-charging load at the charging site. Each charging station includes a battery, a bidirectional inverter, and a system controller configured to determine occurrence of a triggering condition associated with availability of the AC power source and to control the bidirectional inverter to convert a direct current (DC) power from the battery into an AC output current to provide to the non-charging load via a local AC circuit at the charging site. The non-charging load may thus be powered without drawing power from the AC power source.

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