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    REDUNDANCY IN UAV ENGINE TIMING POSITION SYSTEMS
    386.
    发明申请
    REDUNDANCY IN UAV ENGINE TIMING POSITION SYSTEMS 审中-公开

    公开(公告)号：US20170138281A1

    公开(公告)日：2017-05-18

    申请号：US15319948

    申请日：2015-06-23

    Applicant: ORBITAL AUSTRALIA PTY LTD

    Inventor： Tyron Dean UTLEY ,  Nicolass Harry BUTERS ,  Jayesh NARAYAN

    IPC: F02D41/00 ,  B64C39/02 ,  H02K11/21 ,  F02D41/22

    CPC classification number: F02D41/009 ,  B64C39/024 ,  B64C2201/00 ,  B64C2201/044 ,  F02D41/222 ,  F02D2200/101 ,  F02D2400/08 ,  H02K11/21 ,  Y02T10/40

    Abstract: Redundancy in engine timing position sensing maintains a UAV operational in the event of failure of a primary engine timing position sub-system. The redundancy avoids duplication of the primary crankshaft timing position sensing components, and avoids adding weight, cost and component complexity. Conditioned (square) waveform(s) (102) is/are created from respective sinusoidal waveform(s). Each consecutive leading edge (103a) and trailing edge (103b) of the pulses of the square waveform (102) is derived from the crossing of the zero voltage value by consecutive sinusoidal waveforms A,B,C (e.g. Voltage (V) vs Time (t) or angular degrees). The square pulse waveform (102) is output (104) to a microcontroller (106) to create and output a pseudo crankshaft timing position signal (108) to be used by an ECU to determine ignition and fuel injection events in the event that the primary timing signal from the crankshaft position sensor (CPS) has failed. The signal (108) output to the ECU can have a missing pulse (116) (i.e. indicative of a TDC position of the engine crankshaft) as well as multiple square pulses (114) corresponding to the pulses of the initial square pulse waveform (102). The waveform signal (108) is therefore derived from the alternator waveform signal(s) and provides a pseudo crankshaft timing position signal in the event of failure of the primary or initial CPS signal.

    SYSTEM AND METHOD FOR OPERATION AND MANAGEMENT OF RECONFIGURABLE UNMANNED AIRCRAFT
    389.
    发明申请
    SYSTEM AND METHOD FOR OPERATION AND MANAGEMENT OF RECONFIGURABLE UNMANNED AIRCRAFT 有权
    可重新配置的无人驾驶飞机的运行和管理系统和方法

    公开(公告)号：US20160304199A1

    公开(公告)日：2016-10-20

    申请号：US14560765

    申请日：2014-12-04

    Applicant: Elwha LLC

    Inventor： ALISTAIR K. CHAN ,  JESSE R. CHEATHAM, III ,  HON WAH CHIN ,  WILLIAM DAVID DUNCAN ,  RODERICK A. HYDE ,  MURIEL Y. ISHIKAWA ,  JORDIN T. KARE ,  TONY S. PAN ,  ROBERT C. PETROSKI ,  CLARENCE T. TEGREENE ,  DAVID B. TUCKERMAN ,  THOMAS ALLAN WEAVER ,  LOWELL L. WOOD, JR.

    IPC: B64C39/02 ,  B64D47/08 ,  B64D27/26 ,  B64C27/08 ,  B64C27/52

    CPC classification number: B64C39/024 ,  B64C27/08 ,  B64C27/52 ,  B64C2201/027 ,  B64C2201/042 ,  B64C2201/044 ,  B64C2201/108 ,  B64C2201/126 ,  B64C2201/128 ,  B64D27/26 ,  B64D47/08

    Abstract: A reconfigurable unmanned aircraft system is disclosed. A system and method for configuring a reconfigurable unmanned aircraft and system and method for operation and management of a reconfigurable unmanned aircraft in an airspace are also disclosed. The aircraft is selectively reconfigurable to modify flight characteristics. The aircraft comprises a set of rotors. The position of at least one rotor relative to the base can be modified by at least one of translation of the rotor relative to the boom, pivoting of the boom relative to the base, and translation of the boom relative to the base; so that flight characteristics can be modified by configuration of position of at least one rotor relative to the base. A method of configuring an aircraft having a set of rotors on a mission to carry a payload comprises the steps of determining properties of the payload including at least mass properties, determining the manner in which the payload will be coupled to the aircraft, determining configuration for each of the rotors in the set of rotors at least partially in consideration of the properties of the payload, and positioning the set of rotors in the configuration for the aircraft to perform the mission.

    Abstract translation: 公开了一种可重新配置的无人机系统。 还公开了一种用于配置可重新配置的无人驾驶飞行器的系统和方法，以及用于在空域中操作和管理可重新配置的无人飞行器的系统和方法。 该飞机是有选择地可重构的，以修改飞行特性。 飞机包括一组转子。 相对于基座的至少一个转子的位置可以通过转子相对于起重臂的平移，悬臂相对于基座的枢转以及起重臂相对于基座的平移的至少一个来改变。 使得可以通过至少一个转子相对于基座的位置的配置来修改飞行特性。 一种在任务上配置具有一组转子的承载有效载荷的飞行器的方法包括以下步骤：确定所述载荷的属性至少包括质量属性，确定所述有效载荷将与飞行器耦合的方式，确定 转子组中的每个转子至少部分地考虑有效载荷的属性，并将该组转子定位在飞行器的构型中以执行任务。

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