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    • 23. 发明授权
    • Aircraft tailstrike avoidance system
    • 飞机尾巴回避系统
    • US06761336B2
    • 2004-07-13
    • US10043401
    • 2002-01-08
    • Wendi M. DeWittDavid P. EggoldMonte R. EvansMithra M. K. V. SankrithiStephen L. Wells
    • Wendi M. DeWittDavid P. EggoldMonte R. EvansMithra M. K. V. SankrithiStephen L. Wells
    • G05D108
    • G05D1/0808B64C13/503B64D45/04G05D1/0653
    • An aircraft flight control system is provided for reducing the likelihood of an aircraft tailstrike. The flight control system includes a pitch command provided to a pitch control device for altering the aircraft's pitch attitude. The improvement is a system of altering the pitch command to avoid an aircraft tailstrike. The improvement includes determining a current tailskid closure rate and a current tail height; comparing the current tailskid closure rate with a threshold closure rate to determine an excess closure rate amount; and adding an incremental nose-down pitch command with the pitch command to avoid a potential aircraft tailstrike. The threshold closure rate is dependent upon the current tailskid height. The incremental nose-down pitch command is calculated as a function of the excess closure rate amount. An alternative embodiment is provided in which the current height is compared with a threshold height (that is a function of the current tailskid closure rate) to determine an excess height amount. The excess height is then used to form an incremental nose-down pitch command. Another embodiment is described using both height and rate thresholds to calculate the incremental nose-down pitch command. Alternative arrangements may be used in which other non-derivative and derivative values are used, e.g., pitch angle margin and pitch rate.
    • 提供飞机飞行控制系统,以减少飞机尾停的可能性。 飞行控制系统包括提供给俯仰控制装置的俯仰指令,用于改变飞机的俯仰姿态。 改进是改变俯仰命令以避免飞机尾迹的系统。 改进包括确定当前尾部关闭速率和当前尾部高度; 将当前tailskid关闭率与阈值关闭率进行比较以确定过多关闭率; 并用俯仰指令添加增量的下降俯仰指令,以避免潜在的飞机尾迹。 阈值关闭率取决于当前的tailskid高度。 根据过度闭合率量的函数计算增量下降音调指令。 提供了一个替代实施例,其中将当前高度与阈值高度(即当前尾部关闭速率的函数)进行比较以确定过高高度量。 然后使用多余的高度来形成增量的向下俯仰间距指令。 使用高度和速率阈值来描述另一个实施例来计算增量的向下俯仰俯仰指令。 可以使用替代布置,其中使用其他非导数和导数值,例如俯仰角余量和俯仰速率。
    • 27. 发明申请
    • SHORT LANDING WARNING
    • 短路警告
    • WO2015142481A1
    • 2015-09-24
    • PCT/US2015/017145
    • 2015-02-23
    • THE BOEING COMPANY
    • HENDERSON, Mark H.
    • B64D45/04G05D1/06
    • B64D45/04B64D45/08G05D1/0607G05D1/0653G05D1/0676G08G5/0047G08G5/04G08G5/045
    • A method can include determining that an aircraft is on approach to a runway. The method can include determining a flight path vector (FPV) location of the aircraft based at least in part on a projected landing location with respect to the runway and determining a current airspeed of the aircraft. The method can also include performing at least one of the following: issuing a landing short alert to a pilot of the aircraft if the FPV location is at or before the runway threshold, issuing an airspeed caution alert if the FPV location is between the runway threshold and the target runway location and if the current airspeed is below a landing short envelope, and determining not to issue an alert if the FPV location is between the runway threshold and the target runway location and if the current airspeed is at or above the landing short envelope.
    • 一种方法可以包括确定飞机正在接近跑道。 该方法可以包括至少部分地基于相对于跑道的预计着陆位置来确定飞机的飞行路径向量(FPV)位置,并确定飞行器的当前空速。 该方法还可以包括执行以下中的至少一个:如果FPV位置在跑道阈值之前或之前,向飞机的飞行员发出着陆短警报,如果FPV位置在跑道阈值之间,则发出空速警告警报 目标跑道位置以及当前空速是否低于着陆短信号,并且如果FPV位置在跑道阈值和目标跑道位置之间以及当前空速是否在着陆短路之上或之上,则确定不发出警报 信封。
    • 29. 发明申请
    • AIRCRAFT NAVIGATION SYSTEM
    • 飞机导航系统
    • WO1996006008A1
    • 1996-02-29
    • PCT/RU1994000196
    • 1994-08-19
    • CONSILIOR LUFTFAHRTTECHNOLOGIE GMBHSAFYAN, Dmitry Anatolievich
    • CONSILIOR LUFTFAHRTTECHNOLOGIE GMBH
    • B64F01/18
    • G05D1/0653B64F1/18
    • The proposed aircraft navigation system has a ground-air signal link which is independent of the radio link and synchronises the picture frequency of the television camera (12) in the on-board equipment with the frequency of the UV-visible and infrared flashing beacons (3) in the ground equipment; the purpose of this is to improve the precision with which take-off and landing taxiing corridors are formed and to increase the useful lifetimes of the beacons and reduce the cost of operating them. In the on-board equipment, a variable focal length objective (9) of a TV camera which can be moved by an automatically controlled drive monitors signals from the flashing beacons (3); these signals are processed in the selection unit (14) and in the unit (15) which calculates the parameters of the aircrafts motion. A synchroniser (13) co-ordinates the visual and numerical data on the aircraft's position in the take-off/landing space which reach the data display unit (16) for displaying the information needed by the objective drive control unit (11) and the external automatic course correction system.
    • 所提出的飞行器导航系统具有独立于无线电链路的地面空中信号链路,并与车载设备中的电视摄像机(12)的图像频率与UV-可见和红外闪烁信标的频率同步( 3)在地面设备中; 其目的是提高形成起降滑行走廊的精度,增加信标的使用寿命,降低运行成本。 在车载设备中,可通过自动控制的驱动器移动的电视摄像机的可变焦距物镜(9)监视闪光信标(3)的信号; 这些信号在选择单元(14)和计算飞机运动参数的单元(15)中进行处理。 同步器(13)协调飞机在到达数据显示单元(16)的起飞/着陆空间中的位置上的视觉和数值数据,以显示目标驱动控制单元(11)所需的信息和 外部自动校正系统。