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    REDUCING HIGH FREQUENCY FUNDAMENTAL COUPLING IN POLYPHASE CABLES
    2.
    发明公开
    REDUCING HIGH FREQUENCY FUNDAMENTAL COUPLING IN POLYPHASE CABLES 审中-公开

    公开(公告)号：US20240312671A1

    公开(公告)日：2024-09-19

    申请号：US18121225

    申请日：2023-03-14

    Applicant: BAE Systems Controls Inc.

    Inventor： Matthew S. Boecke ,  Joshua P. Stewart ,  Arthur P. Lyons ,  Robert J. Vovos ,  Jeffrey E. Coughlin ,  Brad J. Mulcahy

    IPC: H01B7/30 ,  H01B9/02

    CPC classification number: H01B7/30 ,  H01B9/028

    Abstract: A polyphase cable includes a first conductor, a first shield including conductive material coaxially around the first conductor, and a first insulating material between and separating the first conductor and the first shield. The polyphase cable further includes a second conductor, a second shield including conductive material coaxially around the second conductor, and a second insulating material between and separating the second conductor and the second shield. In an example, the first shield is in physical contact, and in electrical contact, with the second shield. In an example, the polyphase cable is configured to conduct polyphase Alternating Current (AC) having a frequency of at least 100 Hertz (Hz) and/or at most 10,000 Hz. In an example, one or both of a first end and a second end of one or both of the first shield and the second shield are configured to be grounded.

    TRIGGER CELL FOR TRIGGERING THERMAL RUNAWAY IN BATTERIES
    3.
    发明公开
    TRIGGER CELL FOR TRIGGERING THERMAL RUNAWAY IN BATTERIES 审中-公开

    公开(公告)号：US20240313272A1

    公开(公告)日：2024-09-19

    申请号：US18121223

    申请日：2023-03-14

    Applicant: BAE Systems Controls Inc.

    Inventor： Joshua P. Stewart ,  Matthew S. Boecke ,  Peter J. Arnold ,  Jay R. Johnson ,  Jamie-Lynn Ganoung ,  Thomas E. Yale, JR. ,  Robert J. Arbogast ,  William J. Doak

    IPC: H01M10/42

    CPC classification number: H01M10/4285

    Abstract: A system for testing thermal runaway in a battery cell includes a first layer of first dielectric material at least in part wrapped around the battery cell, and a wire at least in part wrapped around the first layer of first dielectric material. The system further includes a second layer of second dielectric material at least in part wrapped around the wire, and a power source configured to supply power to the wire. In an example, the first layer of first dielectric material includes a polyimide film, and the second layer of second dielectric material includes mica. The system further includes a temperature sensor in contact with the first layer, the second layer, and/or the battery cell. A controller is to receive a temperature reading from the temperature sensor, and control a power supplied by the power source to the wire, based at least in part on the temperature reading.

    LASER WELDING TOOLING AND LASER WELDING SYSTEMS
    5.
    发明公开
    LASER WELDING TOOLING AND LASER WELDING SYSTEMS 审中-公开

    公开(公告)号：US20240253167A1

    公开(公告)日：2024-08-01

    申请号：US18160571

    申请日：2023-01-27

    Applicant: BAE Systems Controls Inc.

    Inventor： Jeffrey E. Coughlin ,  Peter J. Arnold ,  Joseph W. Sienko ,  Matthew S. Boecke ,  Joshua P. Stewart

    IPC: B23K37/04 ,  B23K31/12

    CPC classification number: B23K37/0426 ,  B23K31/125 ,  B23K2101/36

    Abstract: Welding plates and a welding system are provided. A welding plate comprises a first portion and a second portion. The first portion comprises a plurality of recesses. Each recess comprises an elastomer configured to compress under a force and a tip. A proximal end of the tip is in contact with the elastomer. The elastomer has a durometer rating less than a predetermined threshold. The second portion may be mounted to the first portion. The second portion has a plurality of first openings. Each first opening corresponds to a recess. A respective tip extends through a respective first opening. Each tip is slidably mounted within the welding plate. Each tip has a central opening forming a welding channel.

    AIRCRAFT PROPULSION UTILIZING A SAFETY CRITICAL ENERGY MANAGEMENT SYSTEM
    6.
    发明公开
    AIRCRAFT PROPULSION UTILIZING A SAFETY CRITICAL ENERGY MANAGEMENT SYSTEM 审中-公开

    公开(公告)号：US20240017844A1

    公开(公告)日：2024-01-18

    申请号：US18352763

    申请日：2023-07-14

    Applicant: BAE Systems Controls Inc.

    Inventor： Matthew S. Boecke ,  Arthur P. Lyons

    IPC: B64D27/24 ,  B64D31/06

    CPC classification number: B64D27/24 ,  B64D31/06 ,  B64D2027/026

    Abstract: An energy management system (EMS) for an aircraft is provided. The aircraft may have one of a plurality of propulsion systems such as a parallel hybrid electric propulsion system, a parallel turbo electric propulsion system, an electric propulsion system, a turbo electric propulsion system and a turbo hybrid electric propulsion system. The EMS comprises redundant control paths for controlling safety critical operation. Each redundant control path is configured to independently determine whether to electrically isolate a line replaceable unit (LRU) from a high voltage DC link (HVDC link) based on status information from the LRU. The isolation is based on the independent determination. The HVDC link is used for propulsion. The number of the redundant control paths and components may be depending on the type of the propulsion system.

    COOLING TECHNIQUES FOR BATTERY PACKAGES
    7.
    发明公开
    COOLING TECHNIQUES FOR BATTERY PACKAGES 审中-公开

    公开(公告)号：US20240313287A1

    公开(公告)日：2024-09-19

    申请号：US18121229

    申请日：2023-03-14

    Applicant: BAE Systems Controls Inc.

    Inventor： Benjamin T. Webster ,  Peter J. Arnold ,  Joshua P. Stewart ,  Jay R. Johnson ,  Matthew S. Boecke

    IPC: H01M10/613 ,  H01M10/625 ,  H01M10/6554

    CPC classification number: H01M10/613 ,  H01M10/625 ,  H01M10/6554

    Abstract: A method includes forming a cold plate including conductive material and having a plurality of openings, and coating the cold plate with dielectric coating. The method further includes placing the cold plate proximal to a metal plate including one or more metals, and exposing the cold plate to moisture and/or water. In an example, a minimum lateral distance between the cold plate and the metal plate is at most 0.5 inch. The method further includes, while the cold plate is exposed to the moisture and/or the water, applying a voltage across the cold plate and the metal plate, and measuring a resultant leakage current through the cold plate. A thickness of the dielectric coating on an edge of an opening of the plurality of openings is at least 0.003 inch.

    SENSORS FOR BATTERY PROTECTION
    9.
    发明公开
    SENSORS FOR BATTERY PROTECTION 审中-公开

    公开(公告)号：US20240222821A1

    公开(公告)日：2024-07-04

    申请号：US18093140

    申请日：2023-01-04

    Applicant: BAE Systems Controls Inc.

    Inventor： Michael Mallery ,  Laura Dionisio ,  Matthew S. Boecke ,  Brian Cortes ,  Robert J. Arbogast

    IPC: H01M50/578 ,  H01M10/42 ,  H01M10/48 ,  H01M50/342

    CPC classification number: H01M50/578 ,  H01M10/425 ,  H01M10/48 ,  H01M50/3425 ,  H01M2010/4278 ,  H01M2200/20

    Abstract: A battery assembly includes an enclosure, an outgas sensor within the enclosure, a pressure relief device within the enclosure, a pressure relief sensor within the enclosure, and a processor within the enclosure. The outgas sensor is configured to sense an outgas event of one or more battery cells within the enclosure and output a first sense signal. The pressure relief device is configured to release gas pressure from the enclosure, in response to pressure within the enclosure exceeding a threshold value. The pressure relief sensor is configured to sense a pressure release event caused by the pressure relief device and output a second sense signal. The processor is configured to receive the first sense signal and the second sense signal, and to transmit information associated with the first and second sense signals to a system that is external to the enclosure.

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