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公开(公告)号：US11567145B2
公开(公告)日：2023-01-31
申请号：US17373574
申请日：2021-07-12
Applicant: The Boeing Company
Inventor： Shengyi Liu
IPC: G01R31/00 , G01R31/52 , H02J7/00 , G01R31/3842 , H01M10/42 , H01M10/48 , G01R31/396
Abstract: A battery management system (BMS) for early detection of a battery cell internal short-circuit. The BMS includes a memory, one or more processing units, and a machine-readable medium on the memory. The machine-readable medium stores instructions that, when executed by the one or more processing units, cause the BMS to perform numerous operations of a method for early detection of the battery cell internal short-circuit.
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公开(公告)号：US11495982B2
公开(公告)日：2022-11-08
申请号：US17395032
申请日：2021-08-05
Applicant: The Boeing Company
Inventor： John A. Trela , Mehdy Barekatein , Glen M. Brown , Shengyi Liu
IPC: H02J7/00 , G01R31/392 , G01R31/396 , G01R31/382 , H02J1/10 , B64D27/24 , H02P27/06
Abstract: System and method for allocating load power drawn from multiple batteries for powering propulsion of a vehicle. The system includes: high-energy and high-power batteries respectively designed for optimal production of DC power during high-specific-energy and high-specific-power propulsion; and battery health management systems configured to monitor state of charge and state of health of the batteries and generate battery status signals. The system further includes a propulsion load configured to produce propulsion force using power converted from power generated by at least one of the batteries and a system controller configured to allocate load power drawn from the high-energy and high-power batteries for use by the propulsion load in dependence on a propulsion phase of the vehicle and the battery status.
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公开(公告)号：US20220196756A1
公开(公告)日：2022-06-23
申请号：US17373574
申请日：2021-07-12
Applicant: The Boeing Company
Inventor： Shengyi Liu
IPC: G01R31/52 , H02J7/00 , G01R31/3842 , G01R31/396 , H01M10/42 , H01M10/48
Abstract: A battery management system (BMS) for early detection of a battery cell internal short-circuit is disclosed. The BMS comprises a memory, one or more processing units, and a machine-readable medium on the memory. The machine-readable medium stores instructions that, when executed by the one or more processing units, cause the BMS to perform numerous operations of a method for early detection of the battery cell internal short-circuit.
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公开(公告)号：US11193426B2
公开(公告)日：2021-12-07
申请号：US16850671
申请日：2020-04-16
Applicant: THE BOEING COMPANY
Inventor： Shengyi Liu
Abstract: The present disclosure provides an electrically gear turbofan that includes a fan; a first spool shaft; and an electrical gearbox including: an armature winding connected to the first spool shaft and coupled to a power source; and a magnetic receiver connected to the fan, and wherein an air gap is defined between the armature winding and the magnetic receiver. The turbines and electrical gearing enable an operator to rotate the spool shaft at a first rotational speed; power an armature winding to generate an armature magnetic field, wherein the armature magnetic field rotates at a second rotational speed; transfer rotational energy via the armature magnetic field from the spool shaft to the magnetic receiver; and rotate the fan at a third rotational speed. In some aspects, the third rotational speed is controlled via a direction and a magnitude of the second rotational speed relative to the first rotational speed.
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公开(公告)号：US11069463B2
公开(公告)日：2021-07-20
申请号：US16455471
申请日：2019-06-27
Applicant: The Boeing Company
Inventor： John R. Hull , Shengyi Liu
Abstract: In one or more embodiments, a system for operation in a generator mode comprises a cryocooler to cool a superconducting coil. The system further comprises a flux pump to provide flux to the superconducting coil. Also, the system comprises a shaft of a prime mover to receive torque to rotate a rotor. In addition, the system comprises the superconducting coil to electrically interact with a main stator coil through a rotating magnetic field. Further, the system comprises a control stator coil to receive a current from a controller and to electrically interact with a non-superconducting coil. In one or more embodiments, a magnitude, phase, and/or frequency of rotating magnetic fields of the superconducting coil and the non-superconducting coil is varied in comparison to a magnitude, phase, and/or frequency of the magnetic field produced by the superconducting coil alone to control a magnitude, phase, and/or frequency of an output voltage.
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Patent Agency Ranking
公开(公告)号：US10934880B1
公开(公告)日：2021-03-02
申请号：US16560550
申请日：2019-09-04
Applicant: THE BOEING COMPANY
Inventor： Shengyi Liu
Abstract: The present disclosure provides an electrical generator within an engine that includes a permanent magnet that emits a first magnetic field and is disposed on a first shaft; a first winding connected to a second shaft such that the first winding is positioned within the first magnetic field; a field winding disposed on the second shaft such that the field winding generates a second magnetic field that rotates as first shaft rotates relative to the second shaft; a second winding disposed on the first shaft, the second winding being positioned to receive the second magnetic field and provide a resonant emitter with an electrical power input to generate a third magnetic field when the first shaft rotates relative to the second shaft; and a resonant receiver disposed on an enclosure of the engine, positioned to receive the third magnetic field and convert the third magnetic field into an electrical output.
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公开(公告)号：US10539629B2
公开(公告)日：2020-01-21
申请号：US16222144
申请日：2018-12-17
Applicant: The Boeing Company
Inventor： Dazhong Gu , Dariusz Czarkowski , Francisco de Leon , Kamiar J. Karimi , Eugene V. Solodovnik , Shengyi Liu
IPC: G01R31/42
Abstract: A programmable alternating current (AC) load in communication with an equipment under test (EUT) is disclosed, where the EUT generates an equipment under test voltage. The programmable AC load includes an active load profiler (ALP) for creating current modulation load profiles that are sent to the EUT. The ALP includes a voltage source inverter, a control module in operative communication with the voltage source inverter of the ALP, and a grid-connected inverter having an AC side and a direct current (DC) side. The AC side of the voltage source inverter is in communication with the EUT for receiving the equipment under test voltage. The control module sends a control duty signal to the voltage source inverter indicating a switching frequency and a duty cycle of the current modulation load profiles.
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公开(公告)号：US20190356261A1
公开(公告)日：2019-11-21
申请号：US15982470
申请日：2018-05-17
Applicant: The Boeing Company
Inventor： Lijun Gao , Shengyi Liu
Abstract: An electric motor apparatus may include a rotor and a stator. The apparatus may include a main field motor stage having a set of stator armature windings positioned on the stator and a set of main field windings positioned on the rotor, where the set of stator armature windings is configured to receive a main multiphase power signal from an alternating current power bus having a first current that causes a first rotating magnetic flux that rotates relative to the stator, where the set of main field windings is configured to receive a secondary multiphase power signal having a second current that causes a second rotating magnetic flux that rotates relative to the rotor, and where a combination of the first rotating magnetic flux and the second rotating magnetic flux causes the rotor to turn at a predetermined reference frequency.
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公开(公告)号：US20190326839A1
公开(公告)日：2019-10-24
申请号：US15959507
申请日：2018-04-23
Applicant: The Boeing Company
Inventor： Lijun Gao , Eugene Solodovnik , Shengyi Liu
Abstract: Described is an independent speed variable frequency generator system that may include a rotor and a stator. The system may further include a pilot generator stage including a magnetic field source positioned on the rotor and a set of pilot multiphase windings positioned on the stator. The system may also include a high frequency transformer stage including a first set of high frequency transformer multiphase windings positioned on the stator and a second set of high frequency transformer multiphase windings positioned on the rotor. The system may also include a main machine stage including a set of main field multiphase windings positioned on the rotor and a set of main armature multiphase windings positioned on the stator, where the second set of high frequency transformer multiphase windings are coupled directly to the set of main field multiphase windings. The system may include a generator control unit.
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10.发明授权公开(公告)号：US10415530B2
公开(公告)日：2019-09-17
申请号：US15872383
申请日：2018-01-16
Applicant: The Boeing Company
Inventor： Shengyi Liu , Lijun Gao
Abstract: A system may include a first bus transfer switch configured to open and close connections between a generator control unit, a pilot permanent magnet generator stage of an independent speed variable frequency (ISVF) generator, and an external power source. The system may further include an inverter configured to set a main field winding of the ISVF generator into a motor state. The system may also include a second bus transfer switch configured to open and close a connection between a main armature winding of the ISVF generator, a power distribution bus, and a motor start driver configured to send a current through the main armature winding to generate a magnetic field pattern that causes the rotor to turn, enabling startup of an engine.
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