System and method for controlling feathering mode of multi-rotor electric propeller in hybrid aircraft

Abstract

The invention provides a system and method for controlling feathering mode of a multi-rotor electric propeller in a hybrid aircraft and belongs to the field of hybrid aircrafts. The system comprises a flight control system, two rotor arms, photoelectric sensors symmetrically mounted at two ends of the rotor arms, direct-current brushless motors, and a direct-current brushless electronic speed control; a rotor propeller is fixedly mounted above each direct-current brushless motor; the rotor propellers rotate with the direct-current brushless motors; the photoelectric sensors judge whether the rotor propellers are in feathering position or not according to whether light emitted is reflected or not, and output high and low level signals to the flight control system in order to perform detecting and logic computing, the flight control system outputs a corresponding control signal to the direct-current brushless electronic speed control, and the speed of the direct-current brushless motors is further controlled. Through the system and method, the positions of the rotor propellers can be adjusted fast, power loss due to poor blade position is reduced, flight drag is reduced, and flight efficiency of the aircraft is improved.

Description

technical field [0001] The invention relates to a composite aircraft, in particular to a control system and method for multi-rotor electric propeller feathering mode in the composite aircraft. Background technique [0002] Conventional fixed-wing aircraft have the advantages of long cruising time, high flight efficiency, and long range, but take-off requires a run-up, airdrop or catapult to take off, and must glide, hit the net or parachute when landing, which greatly affects the fixed-wing aircraft. use of aircraft. [0003] Therefore, the composite aircraft with the advantages of vertical take-off and landing has gradually become the focus of attention of researchers at home and abroad. The composite aircraft is based on the structure of the original fixed-wing aircraft with a multi-rotor aircraft structure. This composite layout aircraft not only has the advantages of long endurance and large load of the fixed-wing aircraft, but also has the vertical launch of the multi-...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention proposes a multi-rotor electric propeller in a composite aircraft for the problem that the rotor propeller will have a great impact on the aerodynamic characteristics of the aircraft when the composite aircraft flies at high speed in a fixed-wing mode. Control system and method for feathering mode

Images