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    • 3. 发明公开
    • Formation flight control
    • Formationsflugsteuerung
    • EP2772817A3
    • 2015-10-28
    • EP14152637.6
    • 2014-01-27
    • The Boeing Company
    • Whitehead, Brian T.Bieniawski, Stefan R.Halaas, DavidLavretsky, Eugene
    • G05D1/10
    • B64C19/00G05D1/0202G05D1/0825G05D1/104
    • An apparatus for controlling the formation flight of a trailing aircraft relative to a vortex generated by a leading aircraft includes a position module, peak-seeking module, limiter module, and control module. The position module is configured to determine a position of the vortex relative to the trailing aircraft. The peak-seeking module is configured to determine a desired position of the trailing aircraft for providing desired vortex-induced aerodynamic benefits based on the position of the vortex relative to the trailing aircraft and a mapping function of an individual performance metric. The limiter module is configured to modify the desired position of the trailing aircraft to avoid unintended crossings of the trailing aircraft into the vortex. Finally, the control module is configured to control flight of the trailing aircraft based on one of the desired position of the trailing aircraft and modified desired position of the trailing aircraft.
    • 用于控制尾飞机相对于由主飞机产生的涡流的飞行的装置包括位置模块,寻峰模块,限制模块和控制模块。 位置模块被配置成确定涡流相对于后方飞行器的位置。 峰值寻求模块被配置为基于相对于后方飞行器的涡流的位置和单个性能度量的映射函数来确定拖尾飞行器的期望位置,以提供期望的涡流引起的空气动力学优点。 限制器模块被配置为修改拖尾飞行器的期望位置,以避免尾翼飞行器进入涡流的意外交叉。 最后,控制模块被配置成基于拖尾飞行器的期望位置和拖尾飞行器的修改的期望位置之一来控制尾翼飞行器的飞行。
    • 5. 发明公开
    • A method of estimating an angle of attack and an angle of sideslip of an aircraft
    • Verfahren zurSchätzungdes Anstellwinkels und des Abtriftwinkels eines Luftfahrzeugs
    • EP2196810A1
    • 2010-06-16
    • EP09178636.8
    • 2009-12-10
    • Alenia Aeronautica S.p.A.
    • Chiesa, Alberto
    • G01P13/02G05D1/08
    • G01P13/025G05D1/0825
    • A method for estimating an angle of attack (α) and an angle of sideslip (β) of an aircraft (2) having a plurality of control surfaces (10, 12, 14) each adjustable with respect to an associated reference surface, the method comprising the steps of:
      - measuring quantities (d 1 , d 2 , d 3 ,) representative of the angle formed by each control surface (10, 12, 14) with respect to the associated reference surface;
      - measuring the effective rolling speed (p E ), the effective pitching speed (q E ) and effective yawing speed (r E ) of the aircraft (2);
      - defining a linearized model of a state observer according to the following equations: { x ˙ = Ax + Bu + Lδy y = Cx + Du
      wherein u is a vector containing the values of said quantities (d 1 , d 2 , d 3 ,) of each control surface (10, 12, 14), x is a vector comprising an estimated angle of attack (α S ), an estimated angle of sideslip (β S ), an estimated rolling speed (p S ), an estimated pitching speed (qs) and an estimated yawing speed (r S ), δy is an error vector comprising the errors between the measured speeds and the respective estimated speeds, y is a measure vector comprising the values of the measured speeds, A, B, C, D are matrixes representative of the behaviour of the aircraft (2) in unperturbed motion and L is a feedback matrix comprising the gains of a predetermined numeric control filter;
      - obtaining from the model the estimated angle of attack (α S ) and the estimated angle of sideslip (β S ) to use as angle of attack (α) and angle of sideslip (β) of the aircraft (2).
    • 一种用于估计具有多个相对于相关联的参考表面可调节的多个控制表面(10,12,14)的飞机(2)的迎角(±)和侧滑角(2)的方法,所述方法 包括以下步骤: - 测量代表由每个控制表面(10,12,14)相对于相关参考表面形成的角度的数量(d 1,d 2,d 3); - 测量飞机(2)的有效滚动速度(p E),有效俯仰速度(q E)和有效偏航速度(r E); - 根据以下等式定义状态观察者的线性化模型:{xÙ= Ax + Bu + L'yy = Cx + Du其中u是包含所述量(d 1,d 2,d 3 ,)是包括估计的迎角(±S),估计的侧滑角(2S),估计滚动速度(p S),估计的迎角 俯仰速度(qs)和估计的偏航速度(r S),'是包括测量速度和各个估计速度之间的误差的误差向量,y是包括测量速度A,B ,C,D是表示飞机(2)在非扰动运动中的行为的矩阵,L是包括预定数值控制滤波器的增益的反馈矩阵; - 从模型获得估计的迎角(±S)和估计的侧滑角(²S)用作飞机(2)的迎角(±)和侧滑角(²)。