METHOD OF EMERGENCY LANDING OF QUADCOPTER Russian patent published in 2018 - IPC B64C27/00 B64C29/00 G05D1/08 B64D25/00 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to the field of ultralight aircraft, namely to aircraft vertical take-off and landing ("flying motorcycles"). Technical result is achieved by the fact that before the start in the onboard flight computer of the quadcopter, a program with the limiting (threshold) values of the parameters is laid, which are precursors of emergency situations that arise on electric motors and rotors; during the flight of a quadcopter in the event of emergency (abnormal) situations on one of four independently operating electric motors or rotors, for example, with a breakdown of the main rotor or motor failure, located two on each side symmetrically relative to the center of gravity and the longitudinal axis of the quadcopter, error signal from the faulty motor or main rotor is fixed by the controllers and / or sensors and instantly enters the on-board flight computer with a processor that is, according to the specified program, prior to the start determines the corresponding malfunction, gives a control command (signal) for an instantaneous trip of the motor opposite to the center of gravity and the longitudinal axis of the motor quadcopter and a uniform redistribution and increasing the thrust to another pair of working regularly, opposite to the center of gravity and the longitudinal axis of the quadcopter, electric motors, while the two remaining regularly working electric motors are output by the onboard computer to the maximum operating mode, which ensures compensation for the losses of the other two electric motors, while converting the quadcopter to the bicopter mode (X→BI), stabilization of the quadcopter in the air along the horizon and emergency smooth landing (decrease) of the quadcopter along the vertical, thus ensuring the safety of the quadcopter flight, excluding the spin-up, stalling (displacement) in different directions and falling of a quadcopter.

EFFECT: technical result of the invention is to ensure the safety of the flight of the quadcopter by stabilizing the flight of the quadcopter horizontally in the event of an emergency (emergency) situation.

1 cl, 2 dwg