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1. 发明公开

EP4318166A1 METHOD OF CONTROLLING A TRANSITION AIRCRAFT AND TRANSITION AIRCRAFT 审中-实审
公开(公告)号：EP4318166A1
公开(公告)日：2024-02-07
申请号：EP22189087.4
申请日：2022-08-05
申请人： Volocopter GmbH
发明人： Yüksel, Burak , Ramesh, Ashwath , Duarte, Lucas
IPC分类号： G05D1/08
摘要： We propose a method of controlling a transition aircraft (1), in particular an electrically powered vertical take-off and landing aircraft, eVTOL, which aircraft (1) comprises a plurality of actuators (2, 3, 4a-c) and which aircraft (1) is able to transition between a first regime for take-off and landing and a second regime for horizontal flight, which method comprises controlling a first subset of actuators from said plurality of actuators (2, 3, 4a-c) in said first regime and a second subset of actuators from said plurality of actuators (2, 3, 4a-c) in said second regime, which method uses a state machine (5a) that is implemented by means of at least one flight control computer (5), which method comprises at least the following steps:
a) providing, to said flight control computer (5), measurements or estimates of a number of flight parameters, which flight parameters preferably comprise a current airspeed (v a ) and of a current attitude (q) of the aircraft (1);
b) depending on a current regime from said first and second regimes, checking by means of said state machine (5a) whether a respective predefined set of conditions (C1-C8) in connection with said current regime are fulfilled, which conditions (C1-C8) are based on a comparison of said flight parameters, preferably of measurements or estimates of a current airspeed (v a ) and of a current attitude (q) of the aircraft (1), respectively, with a respective predefined threshold value;
c) in case all the conditions (C1-C8) in said predefined set of conditions are fulfilled, signalling a corresponding state of the aircraft (1) to a high-level decision maker (5b) and waiting for confirmation regarding a transition from said regime to the other one of said first and second regimes from said high-level decision maker (5b);
d) instructing said flight control computer (5) to make said transition from said current regime to said other one of said first and second regimes if said high-level decision maker (5b) has approved the transition;
e) after making the transition in step d), commanding the aircraft (1) according to said other one of said first and second regimes in accordance with a regime-dependent control law implemented on said flight control computer (5);
f) returning to step a);
wherein step e) comprises gradually blending in a control law for said other one of said first and second regimes over time (t) while blending out a control law for said current regime over time (t).

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