A method and a calculating unit for calculation of

专利名称：A method and a calculating unit for

calculation of a recovery flight path

发明人：Persson, Hans,Lövgren, Jonas申请号：EP05105536.6申请日：20050622公开号：EP1742132B1公开日：20091216

摘要：The invention relates to a method for calculating a flight path avoiding acollision with the ground when an aircraft dives towards the ground. The methodcomprises receiving signals comprising information of a dive angle of the aircraft inrelation to the imaginary ground plane, and a present roll angle of the aircraft, andcalculating a flight path that avoids collision with the ground on the basis of said

information, the calculation comprising calculating a need for rolling the aircraft based onthe present roll angle, and calculating a need for changing the direction of the velocityvector of the aircraft so that the change has a component in an upward direction inrelation to the reference frame of the aircraft. The calculation of the need for rolling theaircraft is also based on the dive angle so that the calculated flight path turns sidewayswhen the dive angle surpasses a specified dive angle and when the present roll angle islarger than zero degrees, and so that the flight path continues in a forward directionwhen the dive angle is below said specified dive angle. The invention also relates to aground collision calculating unit, a computer program, and a computer readable medium.

申请人：SAAB AB

地址：SE

国籍：SE

代理机构：Holmberg, Magnus

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