Oil-electric hybrid rotor unmanned aerial vehicle multi-power source decoupling and vector control device and method

Abstract

The oil-electric hybrid rotor drone multi-power source decoupling and vector control device is used for rotor drones. The rotor drone includes a drone rack, and the drone rack is equipped with a rack center platform at the center. The frame center platform includes a parallel upper center plate and a lower center plate and a distance is provided between the upper center plate and the lower center plate; a motor is installed on the arm of the UAV frame, and two One oil-powered engine, the oil-powered engine is a gasoline piston engine, the motor and the oil-powered engine are equipped with propellers, including a gasoline power vector shaft and a gasoline power vector control device, the two ends of the gasoline power vector shaft rotate with the UAV frame Connection, between the two ends of the gasoline power vector shaft and the UAV frame, there are end bearings. The beneficial effect of the present invention is to realize the fast and stable flight of the rotor UAV, and effectively solve the problem of traditional pure electric UAV. The large forward angle of the gasoline-electric hybrid rotor UAV during fast flight causes some motors to stop and lose the ability to adjust. When encountering gusts of wind and deceleration, the UAV will shake or even crash.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to an oil-electric hybrid multi-rotor unmanned aerial vehicle. Background technique [0002] The multi-rotor UAV has simple structure, low cost, and easy operation. It has been widely used in aerial photography, surveying and mapping, agricultural plant protection and other fields. However, due to the limited energy density of lithium batteries, the endurance time and load capacity of pure rotor drones are extremely limited, which limits its application in the industrial field. For this reason, many engineers and technicians combine small aviation piston engines with rotor drones. , install the engine vertically on the multi-rotor drone, and the oil-driven part provides part of the upward pulling force for the drone. By installing spoilers on the arm or flying the multi-rotor drone, the structure is simple, the cost is low, and the control is easy. It has been widely used in...

AI Technical Summary

Problems solved by technology

However, the oil-electric hybrid rotor UAV with this structure has a slow flight speed due to the decoupling of multiple power sources and the vector control device, and it is difficult to achieve fast flight.

This is because both the motor and the engine provide forward flight power for the UAV during the fast flight, and the two different forms of power sources are coupled together. In order to overcome the resistance, a larger forward angle will appear, and a larger forward angle The speed of the motor in the direction of the nose will become very low, or even stop. When encountering disturbances such as wind, the front motor will lose its ability to adjust, and the drone will shake a lot, or even crash, so it is impossible to achieve fast speed. Flying, wind resistance is also poor

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