Petrol-electric hybrid four-rotor unmanned aerial vehicle

Abstract

The invention discloses a petrol-electric hybrid four-rotor unmanned aerial vehicle, comprising a machine body and a machine frame which is connected onto the machine body, wherein the machine frame is a cross frame which is formed by four same machine arms which are butted in a two-by-two manner; a group of electric power units are arranged at the end part of each machine arm; the machine body comprises an upper center plate, a lower center plate, a control system, and a power generation unit; the upper center plate is fixed above the center of the cross frame; the lower center plate is fixed below the center of the cross frame; the control system is arranged above the upper center plate, electrically connected with the electric power units and used for controlling and driving the electric power units; the power generation unit is fixed below the lower center plate, electrically connected with the control system and used for supplying power to the control system. By adopting the petrol-electric hybrid four-rotor unmanned aerial vehicle, a risk caused by stalling of an engine in flight of the traditional fuel power single-rotor helicopter is avoided; the landing of a multi-rotor aircraft still can be safely controlled by using stored electric energy after a fuel engine is shut down, so that the fuel economy of the entire aircraft can be realized to the highest degree; meanwhile, the emission of pollutants is reduced.

Description

technical field [0001] The invention relates to a mechanism design and flight control of an unmanned aerial vehicle. In particular, it relates to a gasoline-electric hybrid four-rotor unmanned aerial vehicle. Background technique [0002] Compared with the traditional single-rotor helicopter, the quadrotor aircraft with vertical take-off and landing and hovering capabilities has the characteristics of simple structure, easy maintenance, small blade lethality, and safe operation. Not only is it playing an increasingly important role in the military field, but it is also widely used in many civilian fields such as disaster rescue, assessment, dangerous environment investigation, traffic inspection and aerial photography. [0003] At present, quadrotor aircraft are all driven by batteries. Since the energy stored by batteries per unit mass is far less than that of fossil fuels such as gasoline, the flight time of current quadrotor aircraft is very limited. The cruise time unde...

AI Technical Summary

Problems solved by technology

This greatly limits the application field of quadrotor aircraft, and it cannot replace the fuel-powered single-rotor helicopter in the application field requiring long cruise time.

[0004] On the other hand, traditional fuel-powered single-rotor helicopters all have the risk of engine flameout during flight. Although the aircraft can be saved by "spin landing", it is still very easy due to the technical limitations of the pilot

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