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公开(公告)号：EP2812245A4
公开(公告)日：2015-10-07
申请号：EP13790956
申请日：2013-02-09
发明人： ALBION NICOLAS , FEIFEL MARC , MARVIN MARK , MERCER JOHN
CPC分类号： B64C27/57 , B64C13/18 , B64C13/42 , B64C27/56 , B64C27/59 , B64C27/64 , B64C27/68 , G05D1/0077 , G05D1/0816 , G05D1/0858 , G05D1/102 , Y02T50/44
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公开(公告)号：EP2812764A4
公开(公告)日：2016-07-06
申请号：EP13787117
申请日：2013-02-08
发明人： ALBION NICOLAS , BARTEL MARK , FEIFEL MARC , MARVIN MARK , MERCER JOHN
IPC分类号： B64C13/18 , B64C13/42 , B64C27/04 , B64C27/56 , B64C27/57 , B64C27/64 , B64C27/68 , G05D1/08 , G05D1/10
CPC分类号： B64C27/57 , B64C13/18 , B64C13/42 , B64C27/56 , B64C27/59 , B64C27/64 , B64C27/68 , G05D1/0077 , G05D1/0816 , G05D1/0858 , G05D1/102 , Y02T50/44
摘要： A helicopter autopilot system includes an inner loop for attitude hold for the flight of the helicopter including a given level of redundancy applied to the inner loop. An outer loop is configured for providing a navigation function with respect to the flight of the helicopter including a different level of redundancy than the inner loop. An actuator provides a braking force on a linkage that serves to stabilize the flight of the helicopter during a power failure. The actuator is electromechanical and receives electrical drive signals to provide automatic flight control of the helicopter without requiring a hydraulic assistance system in the helicopter. The autopilot can operate the helicopter in a failed mode of the hydraulic assistance system. A number of flight modes are described with associated sensor inputs including rate based and true attitude modes.
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