公开(公告)号：US12139266B2

公开(公告)日：2024-11-12

申请号：US18663960

申请日：2024-05-14

Applicant: Archer Aviation, Inc.

Inventor： Alan Tepe ,  Stephen Spiteri ,  Wei Wu ,  Diederik Marius

IPC: B64D27/24 ,  B60L15/06 ,  B60L15/38 ,  B64C27/54 ,  B64C29/00 ,  B64D33/08 ,  B64D35/02 ,  F16B2/06 ,  F16H57/08 ,  H02K1/27 ,  H02K1/32 ,  H02K5/124 ,  H02K5/20 ,  H02K7/08 ,  H02K7/116 ,  H02K9/19 ,  H02K11/33 ,  H02K15/03 ,  H02M7/5395 ,  H02P21/00 ,  H02P25/16 ,  H02P27/06 ,  H02P27/08 ,  H02K7/00

Abstract: An electrical propulsion system includes an electrical motor configured to drive one or more propellers of the aircraft, a capacitor configured to stabilize a direct current (DC) bus voltage, a first inverter circuit coupled to the capacitor and configured to convert the DC bus voltage to alternate current (AC) voltages to drive a first set of stator windings of the electrical motor, in response to a first pulse width modulation (PWM) vector, and a second inverter circuit coupled to the capacitor and configured to convert the DC bus voltage to AC voltages to drive a second set of stator windings of the electrical motor, in response to a second PWM vector. The first PWM vector and the second PWM vector are substantially equal and opposite vectors.

公开(公告)号：US12199541B2

公开(公告)日：2025-01-14

申请号：US18401446

申请日：2023-12-30

Applicant: Archer Aviation, Inc.

Inventor： Guy Bernard ,  Geoffrey Bower ,  Diederik Marius ,  Kurt Wagner ,  Stephen Spiteri

IPC: H02P29/00 ,  B64C11/00 ,  B64D31/02 ,  H03K17/56

Abstract: An aircraft system for damping movement of a structural flight element. The aircraft system including a moveable aircraft structure, a power source, a controller, a resistor, and a first transistor connected in series to the resistor. When the power source of the aircraft is providing power, the controller controls the first transistor to prevent current flow through its terminals and through the resistor. Further, when the power source of the aircraft is not providing power, the first transistor allows current generated by a back EMF (electromotive force) voltage to flow through its terminals and through the resistor, the back EMF voltage being created by movement of the moveable aircraft structure.

公开(公告)号：US11975854B2

公开(公告)日：2024-05-07

申请号：US18306275

申请日：2023-04-25

Applicant: Archer Aviation Inc.

Inventor： Alan D. Tepe ,  Stephen Michael Spiteri ,  Scott Graves ,  Alan Baldwin ,  Wei Wu ,  Robert Wayne Moore ,  Michael Zwiers ,  Diederik Marius

IPC: B64D27/24 ,  B64C29/00 ,  H02P25/16 ,  H02P27/06

CPC classification number: B64D27/24 ,  B64C29/0033 ,  H02P25/16 ,  H02P27/06

Abstract: An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft comprises an electrical motor assembly and an inverter assembly. The inverter assembly comprises a housing, a capacitor assembly, at least one printed circuit board assembly (PCBA), and a plurality of positioning pins. The capacitor assembly comprises a center hole, at least one capacitor, a capacitor housing having at least one busbar, and a plurality of through holes in the capacitor housing. The capacitor assembly and the at least one PCBA are positioned inside the housing. The plurality of positioning pins pass through the through the plurality of through holes of the capacitor housing and the at least one PCBA and are connected to the housing.

公开(公告)号：US11465532B2

公开(公告)日：2022-10-11

申请号：US17156047

申请日：2021-01-22

Applicant: Archer Aviation, Inc.

Inventor： Diederik Marius

IPC: B60L58/18 ,  B60L50/60 ,  B60L58/12 ,  B64C27/52 ,  B64C27/32 ,  B64C27/24 ,  B64D31/00 ,  H02J4/00 ,  H02J7/00 ,  H02J7/34 ,  B64D27/24

Abstract: A power distribution system for an electric aircraft includes a first electric propulsion unit comprising at least two power stages; a first battery pack electrically connected to a first power stage of the at least two power stages; a second battery pack electrically connected to a second power stage of the at least two power stages; and a control system configured to control the first battery pack, the second battery pack, the first power stage, and the second power stage to transfer power from the first battery pack to the second battery pack through the first power stage and the second power stage.