发明名称 |
TRIM AUGMENTATION SYSTEM FOR A ROTORY WING AIRCRAFT |
摘要 |
The flight control system includes a trim augmentation algorithm which advantageously provides two primary functions: direct augmentation of the rotor trim via on-axis stick input; and automatic cross-axis trim transfer as a function of the commanded yaw rate. In a first function of the present invention, when the aircraft is lagging the pilots commanded maneuver state the stick command is multiplied by a gain to direct the actual vehicle response toward said pilot commanded rate signal and improve the model following control laws. In a second function of the present invention, a cross-axis trim transfer function of the trim augmentation algorithm uses the commanded yaw rate to anticipate the trim change when the aircraft is rotating in winds. When a yaw maneuver is performed, the cross-axis trim transfer function automatically "stirs" the cyclic as the aircraft rotates about the yaw axis. |
申请公布号 |
WO03050631(A2) |
申请公布日期 |
2003.06.19 |
申请号 |
WO2002US38195 |
申请日期 |
2002.11.26 |
申请人 |
SIKORSKY AIRCRAFT CORPORATION |
发明人 |
GOLD, PHILIP, JEREMY;DRYFOOS, JAMES, B.;BREWER, ROY |
分类号 |
G05D1/08 |
主分类号 |
G05D1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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