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公开(公告)号：US20250070588A1
公开(公告)日：2025-02-27
申请号：US18236658
申请日：2023-08-22
Applicant: BAE Systems Controls Inc.
Inventor： Christopher C. Jones , Robert J. Vovos , Arthur P. Lyons , James A. Dupuy
Abstract: A system for partially pre-charging an electrical power system having a high voltage power source, a DC link device with a DC Link capacitor, a low voltage power source and a DC/DC converter. In one embodiment a partial pre-charge of the DC Link capacitor can be achieved in three ways: first, through a DC/DC converter boosting from the low voltage power source, second, through a first circuit provided to charge the DC link capacitor to a partial pre-charge state using the voltage directly from the low voltage power source, and third, through a second circuit provided to limit current flowing to the DC link capacitor from the high voltage power source to charge the DC Link capacitor only to a partial pre-charge level. A controller selectively operates the first circuit, the second circuit, or the DC/DC converter for charging the DC link capacitor to the partial pre-charge state
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公开(公告)号：US20240359561A1
公开(公告)日：2024-10-31
申请号：US18141068
申请日：2023-04-28
Applicant: BAE Systems Controls Inc.
Inventor： Robert J. Vovos , Andrew S. Clark
CPC classification number: B60L3/003 , B60L3/0069 , B60L50/51 , H02M1/123 , B60L2210/42
Abstract: A common-mode current sensor system and method for a traction inverter of an electric hybrid vehicle. The system and method detects/reduces excess common-mode currents that can be caused by the presence of alternating current (AC)-chassis type short circuit faults at the outputs of an inverter used for driving a two or more-phased load. In an embodiment, the system detects the presence of an AC-chassis fault of any varying strength, e.g., weak, medium, hard, in respective parallel paths. The system and method can isolate a particular AC-chassis type fault to a particular phase leg of the inverter thereby obviating a need of having to shut-down and/or re-program each phase leg of the whole power supply and vehicle operation. Rather, upon detecting a chassis short, a fault signal is asserted to control shutting down of one or more inverter switches without having to shut-down the vehicle or negatively impact the vehicle status.
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公开(公告)号：US12126163B2
公开(公告)日：2024-10-22
申请号：US18067208
申请日：2022-12-16
Applicant: BAE Systems Controls Inc.
Inventor： Andrew S. Clark , Nicholas A. Lemberg , Joseph M. Dutko
CPC classification number: H02H7/1213 , B60R16/03 , H02J9/061
Abstract: Protection system and method for preventing damage to components in an inverter module caused by a permanent magnet (PM) electric machine being in an uncontrolled state is provided. The system has a back-up power supply to supply power to voltage rails for gate driver circuitry which controls at least one pair of semiconductor switches. At least one pair of semiconductor switches is electrically connected to the PM electric machine. The back-up power supply receives as input, a differential voltage of a DC bus. The protection system also has a control module electrically connected to the second power supply and receive power therefrom. The control module is configured to receive a sensed voltage of the DC bus and cause the gate driver circuitry to short respective phases when a differential voltage of the DC bus is greater than or equal to a first threshold and a condition is satisfied.
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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.
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公开(公告)号：US20240206136A1
公开(公告)日：2024-06-20
申请号：US18067041
申请日：2022-12-16
Applicant: BAE Systems Controls Inc.
Inventor： Stephen J. Kosteva , Cameron R. Vakili , Leslie R. Baker , Stephen L. Homan
IPC: H05K7/20
CPC classification number: H05K7/20927 , H05K7/20272
Abstract: A cooling system and method for cooling a contactor from the contactor-terminal side or both the contactor-mount side is provided. The contactors may be mounted to a base of a chassis. The cover may have one or more fluid channels associated with an exterior side of the cover. The interior side may have a plurality of thermally conductive bosses projecting from the interior surface configured to indirectly contact busbars which are respectively connected to contactor terminals of the contactors via thermal pads to provide a heat transfer path between the busbars and the fluid within the one or more fluid channels associated with the exterior side of the cover. Certain of the thermally conductive bosses are offset from the one or more fluid channels.
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Patent Agency Ranking
公开(公告)号：US20240206135A1
公开(公告)日：2024-06-20
申请号：US18067025
申请日：2022-12-16
Applicant: BAE Systems Controls Inc.
Inventor： Stephen J. Kosteva , Cameron R. Vakili , Leslie R. Baker , Stephen L. Homan
CPC classification number: H05K7/20927 , H02M7/003 , H05K7/20272 , H05K7/20436
Abstract: A cooling system for a modular power control system (MPCS) is provided. The MPCS comprises modules. Each module has a chassis with a first manifold segment for first common manifold and a second manifold segment for second common manifold. When the modules are mounts to each other, the first manifold segments align to form the first common manifold and the second manifold segments align to form the second common manifold, providing two fluid channels between endcaps. The chassis of at least two modules further have a first opening providing a fluid interface region between the first common manifold and a module specific flow path, and a second opening providing a fluid interface region between the module specific flow path and the second common manifold. The module specific flow path provides at least one fluid branch between the first common manifold and the second common manifold.
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公开(公告)号：US20240204688A1
公开(公告)日：2024-06-20
申请号：US18067309
申请日：2022-12-16
Applicant: BAE Systems Controls Inc.
Inventor： Robert J. Vovos , Andrew S. Clark
IPC: H02M7/5387 , H02M1/12 , H02M1/44
CPC classification number: H02M7/5387 , H02M1/123 , H02M1/44
Abstract: A multi-wire choke filter is implemented in an inverter module of a modular power control system for a vehicle. Such an inverter module includes gate driver circuits to control switching power transistors used to power loads in a vehicle. The switching power transistors and gate drivers are configurable to support both a three-phase and a single phase current drive driver circuit topology in which switching power transistors are connected in parallel to share driving currents and dynamic switching losses. In any configured topology, the multi-wire choke is connected in series between gate driver circuit components and switching power transistors to mitigate any EMI threat to the gate driver circuitry by presenting an impedance to reduce circuit susceptibility to any differential and common mode noise currents that can flow through the gate driver circuit that can overwhelm gate driver circuitry and negatively effect power transistor switching performance at any time.
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公开(公告)号：US20240204681A1
公开(公告)日：2024-06-20
申请号：US18067172
申请日：2022-12-16
Applicant: BAE Systems Controls Inc.
Inventor： Arthur P. Lyons , Stephen J. Kosteva , Cameron R. Vakili , Stephen L. Homan , Robert J. Vovos
CPC classification number: H02M7/003 , H02M1/088 , H05K7/14329
Abstract: A laminated DC busbar, a DC backplane and a DC busbar system with super low inductance is provided. Semiconductor switches may be connected to respective laminated DC busbars. The DC busbar system comprises a DC backplane and at least two laminated DC busbars respectively connected to semiconductor switches. The round-trip inductance between semiconductor switches connected to two adjacent laminated DC busbars via the DC backplane is less than about 7.5 nH
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9.发明公开公开(公告)号：US20240204501A1
公开(公告)日：2024-06-20
申请号：US18067152
申请日：2022-12-16
Applicant: BAE Systems Controls Inc.
Inventor： Robert J. Vovos , Arthur P. Lyons , Stephen L. Homan
IPC: H02G5/02
CPC classification number: H02G5/02
Abstract: An AC busbar for connecting at least three phases from a semiconductor switching unit to a load is provided. The AC busbar parallelly connects the at least three phases and provides current balancing. The AC busbar has a terminal-side conductor mechanically connectable to each AC terminal of the semiconductor switching unit and a load-side conductor positioned between the terminal-side conductor and the load. A distance between the terminal-side conductor and the load-side conductor is such that a difference in an inductance between a connection point for a respective AC terminal of each phase and a common point on a middle of the load-side conductor is less than a predetermined percentage with respect to an average of the respective inductances.
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公开(公告)号：US20230344069A1
公开(公告)日：2023-10-26
申请号：US18028906
申请日：2021-09-30
Applicant: BAE Systems Controls Inc.
Inventor： William J. Doak , Christopher P. Akulis , Peter J. Arnold , Matthew S. Boecke , Dan A. Snavely , Joshua P. Stewart
IPC: H01M50/342 , H01M10/658 , H01M10/0525 , H01M50/213
CPC classification number: H01M50/3425 , H01M10/658 , H01M10/0525 , H01M50/213 , H01M2200/20
Abstract: A lithium-ion battery assembly includes a plurality of battery cells in a spaced-apart and generally parallel arrangement, each cell of the battery cells extending along a central axis and having a first end portion with a negative terminal and a second end portion with a positive terminal. The assembly includes a first capture plate and a second capture plate, where at least the first capture plate defines capture plate openings corresponding to the plurality of battery cells, the first capture plate spaced from and oriented generally parallel to the second capture plate. Each of the plurality of battery cells extends between the first and second capture plates and is coaxially arranged with one of the capture plate openings in the first capture plate. The assembly optionally includes a body between the capture plates, the body defining a void for each battery cell.
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