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公开(公告)号：US20170244325A1
公开(公告)日：2017-08-24
申请号：US15050054
申请日：2016-02-22
Applicant: THE BOEING COMPANY
Inventor： Michael A. Carralero , Jimmy M. Quiambao , James L. Peck
CPC classification number: H02M3/33507 , H02M3/285 , H02M3/33546 , H02M7/53871 , H02M2001/007 , H02M2001/0077 , H02P27/06
Abstract: Increased DC-to-AC power conversion efficiency in a scalable, flexible, resilient, cascading inverter driver topology. Plural power cells, which include a rectifier and an inverter, are arranged in a series/parallel topology. Use of plural power cells increases efficiency by reducing voltage transition losses and by increasing duty cycle. Also, the power cells output AC to an electric motor using a forward-looking controller that responds to varying power demand while maintaining motor speed at a maximum efficiency level. Power output is varied by varying the width of rectifier output pulses to the inverters while maintaining pulse voltage. Transitions between power levels are smoothed by pulse density modulation. Pulse density, determined automatically in the inverter, begins high and gradually becomes less dense so voltage changes rapidly then slowing gradually. The topology and power cell components allow faulty power cells 10 to be isolated and bypassed.
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公开(公告)号：US11016149B2
公开(公告)日：2021-05-25
申请号：US16450404
申请日：2019-06-24
Applicant: THE BOEING COMPANY
Inventor： Jimmy M. Quiambao , James L. Peck
IPC: H02J7/00 , G01R31/396 , G01R31/392 , G01R31/389 , G01R31/50
Abstract: A battery management system (BMS) described herein determines the internal resistance for a cell that may have an internal short circuit. In one aspect, the BMS monitors the voltage across each of a plurality cells that are coupled in series. If the voltage across one of the cells differs from the voltages across the other cells, the BMS can flag the cell as potentially having an internal short circuit. Once flagged, the BMS can use a simulator that stores a model cell that has similar characteristics as the cells monitored by the BMS to determine the internal resistance of the flagged cell. In one aspect, the simulator changes the value of a surrogate resistor that is parallel with the model cell until the voltage across the model cell matches the voltage of the flagged cell. The value of the surrogate resistor indicates the internal resistance of the flagged cell.
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Patent Agency Ranking
公开(公告)号：US10218277B2
公开(公告)日：2019-02-26
申请号：US15050054
申请日：2016-02-22
Applicant: THE BOEING COMPANY
Inventor： Michael A. Carralero , Jimmy M. Quiambao , James L. Peck
IPC: H02M3/335 , H02P27/06 , H02M3/28 , H02M7/5387 , H02M1/00
Abstract: Increased DC-to-AC power conversion efficiency in a scalable, flexible, resilient, cascading inverter driver topology. Plural power cells, which include a rectifier and an inverter, are arranged in a series/parallel topology. Use of plural power cells increases efficiency by reducing voltage transition losses and by increasing duty cycle. Also, the power cells output AC to an electric motor using a forward-looking controller that responds to varying power demand while maintaining motor speed at a maximum efficiency level. Power output is varied by varying the width of rectifier output pulses to the inverters while maintaining pulse voltage. Transitions between power levels are smoothed by pulse density modulation. Pulse density, determined automatically in the inverter, begins high and gradually becomes less dense so voltage changes rapidly then slowing gradually. The topology and power cell components allow faulty power cells 10 to be isolated and bypassed.
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公开(公告)号：US20170283039A1
公开(公告)日：2017-10-05
申请号：US15084076
申请日：2016-03-29
Applicant: THE BOEING COMPANY
Inventor： Patrick McCormick , James L. Peck
CPC classification number: B64C13/50 , B64C9/22 , B64D2045/001 , Y02T50/44
Abstract: A system and method for controlling one or more flaps of a wing of an aircraft include a first flap moveably secured to a first wing of the aircraft. The first flap is moveable between an extended position and a retracted position. First and second actuators are coupled to the first flap. A flap control unit is in communication with the first and second actuators. The flap control unit is configured to operate the first and second actuators to move the first flap between retracted and extended positions, monitor a first electrical signal provided to the first actuator, monitor a second electrical signal provided to the second actuator, and determine that the first and second actuators are synchronized by monitoring the first and second electrical signals.
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公开(公告)号：US20190317156A1
公开(公告)日：2019-10-17
申请号：US16450404
申请日：2019-06-24
Applicant: THE BOEING COMPANY
Inventor： Jimmy M. QUIAMBAO , James L. Peck
IPC: G01R31/396 , G01R31/392 , G01R31/389 , H02J7/00
Abstract: A battery management system (BMS) described herein determines the internal resistance for a cell that may have an internal short circuit. In one aspect, the BMS monitors the voltage across each of a plurality cells that are coupled in series. If the voltage across one of the cells differs from the voltages across the other cells, the BMS can flag the cell as potentially having an internal short circuit. Once flagged, the BMS can use a simulator that stores a model cell that has similar characteristics as the cells monitored by the BMS to determine the internal resistance of the flagged cell. In one aspect, the simulator changes the value of a surrogate resistor that is parallel with the model cell until the voltage across the model cell matches the voltage of the flagged cell. The value of the surrogate resistor indicates the internal resistance of the flagged cell.
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公开(公告)号：US10330739B2
公开(公告)日：2019-06-25
申请号：US15246194
申请日：2016-08-24
Applicant: THE BOEING COMPANY
Inventor： Jimmy M. Quiambao , James L. Peck
IPC: H02J7/00 , G01R31/396 , G01R31/392 , G01R31/389 , G01R31/02
Abstract: A battery management system (BMS) described herein determines the internal resistance for a cell that may have an internal short circuit. In one aspect, the BMS monitors the voltage across each of a plurality cells that are coupled in series. If the voltage across one of the cells differs from the voltages across the other cells, the BMS can flag the cell as potentially having an internal short circuit. Once flagged, the BMS can use a simulator that stores a model cell that has similar characteristics as the cells monitored by the BMS to determine the internal resistance of the flagged cell. In one aspect, the simulator changes the value of a surrogate resistor that is parallel with the model cell until the voltage across the model cell matches the voltage of the flagged cell. The value of the surrogate resistor indicates the internal resistance of the flagged cell.
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公开(公告)号：US10315753B2
公开(公告)日：2019-06-11
申请号：US15084076
申请日：2016-03-29
Applicant: THE BOEING COMPANY
Inventor： Patrick McCormick , James L. Peck
Abstract: A system and method for controlling one or more flaps of a wing of an aircraft include a first flap moveably secured to a first wing of the aircraft. The first flap is moveable between an extended position and a retracted position. First and second actuators are coupled to the first flap. A flap control unit is in communication with the first and second actuators. The flap control unit is configured to operate the first and second actuators to move the first flap between retracted and extended positions, monitor a first electrical signal provided to the first actuator, monitor a second electrical signal provided to the second actuator, and determine that the first and second actuators are synchronized by monitoring the first and second electrical signals.
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