Multi-rotor vehicle with edge computing systems

    公开(公告)号:US11364995B2

    公开(公告)日:2022-06-21

    申请号:US16388356

    申请日:2019-04-18

    Abstract: A multi-rotor vehicle includes a plurality of electric motors and edge computing systems (ECSs). The electric motors are operatively coupled to respective rotors, and cause the respective rotors to rotate relative to the airframe. The ECSs are independent, distinct and distributed to the electric motors, each operatively coupled to a respective electric motor and thereby a respective rotor. Each ECS is configured to acquire and process sensor data for the respective rotor to determine rotor status information, and execute motor commands to control the respective electric motor and thereby the respective rotor. The ECSs are configured according to a model in which any of the ECSs is selectable as a primary ECS, and others of the ECSs are operable as secondary ECSs, the secondary ECSs configured to communicate respective rotor status information to the primary ECS, and the primary ECS configured to provide the motor commands to the secondary ECSs.

    ACTIVE FLOW CONTROL SYSTEMS AND METHODS FOR AIRCRAFT

    公开(公告)号:US20210362840A1

    公开(公告)日:2021-11-25

    申请号:US16880499

    申请日:2020-05-21

    Abstract: Example active flow control systems and methods for aircraft are described herein. An example an active flow control system includes a plenum, a plurality of nozzles fluidly coupled to the plenum, configured to eject high pressure air across a control surface, a compressor to supply pressurized air to the plenum, an electric motor to drive the compressor, and a control system to determine an amount of power input to the electric motor, determine a current speed of the electric motor, and determine a fault has occurred in the active flow control system based on the current speed of the electric motor.

    System and method for dual speed resolver

    公开(公告)号:US10830591B2

    公开(公告)日:2020-11-10

    申请号:US15934034

    申请日:2018-03-23

    Abstract: An apparatus includes a coarse resolver configured to output coarse position signals indicative of a coarse position of a drive shaft of a motor. The apparatus also includes a fine resolver configured to output fine position signals indicative of a fine position of the drive shaft of the motor. The apparatus further includes a control circuit. The control circuit is configured to receive the coarse position signals from the coarse resolver and the fine position signals from the fine resolver and generate an initial position output, based on the coarse position signals, that indicates an initial position of the drive shaft. The control circuit is further configured to generate a subsequent position output, based on the fine position signals, that indicates a subsequent position of the drive shaft.

    Active voltage controller for an electric motor
    17.
    发明授权
    Active voltage controller for an electric motor 有权
    电动机有源电压控制器

    公开(公告)号:US09240740B2

    公开(公告)日:2016-01-19

    申请号:US13905392

    申请日:2013-05-30

    CPC classification number: H02P6/08 H02P7/29 H02P21/0085

    Abstract: A method for controlling an electric motor. A desired speed is identified for the electric motor during operation of the electric motor. A voltage is identified to cause the electric motor to turn at the desired speed. The voltage is applied to the electric motor and actively controlled during operation of the electric motor.

    Abstract translation: 一种用于控制电动机的方法。 在电动机操作期间为电动机识别期望的速度。 识别电压使电动机以所需的速度转动。 电动机施加电压并在电动机运行期间主动控制。

    Reluctance Motor System
    18.
    发明申请
    Reluctance Motor System 有权
    磁阻电机系统

    公开(公告)号:US20150091491A1

    公开(公告)日:2015-04-02

    申请号:US14043612

    申请日:2013-10-01

    CPC classification number: G05B11/011 H02K41/065 H02P6/16 H02P2203/01

    Abstract: A method and apparatus for controlling operation of an electric motor. A controller is configured to identify a position of a disc relative to a plate with coils physically associated with the plate. The controller is further configured to control a current sent to the coils based on the position of a disc. The disc is configured to move such that a closest point between the disc and the plate changes along a periphery of the disc.

    Abstract translation: 一种用于控制电动机的操作的方法和装置。 控制器被配置为识别盘相对于具有与盘物理相关联的线圈的板的位置。 控制器还被配置为基于盘的位置来控制发送到线圈的电流。 盘被配置为移动,使得盘和板之间的最近点沿着盘的周边改变。

    System and method for demodulation of resolver outputs

    公开(公告)号:US10911061B2

    公开(公告)日:2021-02-02

    申请号:US15933991

    申请日:2018-03-23

    Abstract: Demodulation circuitry includes an input terminal configured to be coupled to an analog-to-digital converter (ADC) and configured to receive a plurality of ADC outputs. The plurality of ADC outputs are generated based on resolver outputs. The demodulation circuitry also includes a rectifier configured to rectify the plurality of ADC outputs. Rectifying the plurality of ADC outputs preserves a phase of the plurality of ADC outputs. The demodulation circuitry includes amplitude determination circuitry configured to determine, based on the rectified plurality of ADC outputs, demodulated amplitude values corresponding to the resolver outputs. The demodulation circuitry further includes angle computation circuitry configured to generate position outputs based on the demodulated amplitude values.

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