A hybrid unmanned aerial vehicle with multiple propulsion modes

Abstract

The embodiment of the invention discloses a multi-propulsion mode hybrid unmanned aerial vehicle, relates to the technical field of unmanned aerial vehicles, and can improve the power, economy and cruising range of the unmanned aerial vehicle. The present invention comprises: fuselage 6, wing 8, tail brace 10 and empennage 11, wherein fuselage 6 installs integrated start / power generation integrated motor-ISG motor 1, electromagnetic clutch 2, engine 3, auxiliary motor 4, small propeller 5. Power battery 7 and main propeller 9. The UAV can realize the mixing of engine power and battery power. According to the working conditions of the UAV, it adopts different propulsion modes, including parallel hybrid propulsion mode, pure electric mode and series power generation mode, etc., which can effectively improve the efficiency of unmanned vehicles. The power, economy and cruising range of the aircraft. The invention is suitable for hybrid unmanned aerial vehicles.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a hybrid unmanned aerial vehicle with multiple propulsion modes. Background technique [0002] With the country's policy of opening up and encouraging the development of the general aviation industry, UAV technology has become more and more widely used in military and civilian fields, and a large number of UAV manufacturing companies with considerable manufacturing scale have emerged. Under the joint promotion of enterprises, enterprises and the market, we are making great progress. [0003] At present, drones on the market are mainly divided into power battery drones and fuel engine drones by power. These two forms of power schemes have some inherent defects, such as: using a battery pack to supply power to the motor, which is the power mode used by most drones. The flight control response is fast and the power density is high, but the power battery (such as C...

AI Technical Summary

Problems solved by technology

These two forms of power schemes have some inherent defects, such as: using a battery pack to supply power to the motor, which is the power mode used by most drones. The flight control response is fast and the power density is high, but the power battery (such as Commonly used lithium batteries, etc.) have low energy density, no matter how the fuselage loses weight, the cruising range of the drone is poor; the power density of the fuel engine is high, the cruising range of the drone is long, but the aircraft control response is slow, especially in flat In the flight stage, the engine work efficiency is low, and the fuel economy is poor

[0004] Therefore, before the breakthrough of power battery technology, the industry also began to develop fuel generator + power battery-powered drones. At present, some experimental products have appeared, such as: a) using a fuel engine as the main power, lithium battery As an auxiliary power, the auxiliary power can improve the battery life to a certain extent under the condition of low power requirements of the UAV team, but the oil-electric power cannot be backed up by each other, which restricts the improvement of its battery life, and the economy is not high; b ) The fuel generator is connected in series with the power battery, the engine generates electricity to charge the power battery, and the power battery provides power for the UAV, which significantly improves the cruising range of the UAV, but the power of the UAV is insufficient

In addition, most of the existing UAV fuel engines need to be started by pull ropes, and the reliability and practicability need to be improved

[0005] Therefore, the existing fuel generator + power battery power supply scheme is still difficult to balance in important indicators such as power, economy, and cruising range of the UAV, and needs to be further improved and optimized.

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