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Gasoline-electric hybrid power matching method and system for a rotary wing aircraft

A technology of oil-electric hybrid power and aircraft, which is applied in the field of unmanned aerial vehicles, can solve the problems of short cruising distance, reduce motor, power waste, etc., and achieve the effect of increasing working life, improving flight efficiency and improving working conditions

Active Publication Date: 2020-12-01
南京灵龙旋翼无人机系统研究院有限公司
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to aim at the serious waste of power when the existing rotary wing is driven by pure fuel oil, and the problems of heavy weight and short cruising distance when it is driven by pure motor, to design a lifting stage that uses oil-driven engine power as the main power, The motor is used as a lifting supplementary power to greatly reduce the power required by the motor and the power matching method of the battery weight, and at the same time provide a corresponding power drive system

Method used

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  • Gasoline-electric hybrid power matching method and system for a rotary wing aircraft

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Embodiment 1

[0020] An oil-electric hybrid power matching method for a rotary wing aircraft, which uses a combination of an oil-powered engine and an electric motor as a power system, and adopts figure 1 In the parallel hybrid power transmission system shown, the oil-driven engine whose economical fuel consumption power meets the required power of the aircraft in the cruising phase is selected, and the electric motor power is the difference between the maximum required power of the aircraft and the maximum power of the oil-driven engine in the vertical take-off and landing phase. The parallel hybrid power transmission system includes: a transmission belt, a pulley (master and slave), a transmission shaft, a shaft coupling, a clutch, a speed reducer, and gears. The oil-powered engine transmits power to the main drive shaft through the drive belt. The front of the main transmission shaft is directly connected with the front pulling torque converter propeller, and the rear of the main transmi...

Embodiment 2

[0025] An oil-electric hybrid power system for a rotary wing aircraft, which consists of a main transmission chain from an oil-powered engine, an electric motor to a rotor, and a front transmission chain from an engine to a propeller. Power, the front transmission chain is used to provide power for the cruising flight of the aircraft, and the power transmitted by the front transmission chain during the vertical take-off and landing stage does not affect the vertical take-off and landing of the aircraft because the propeller blade angle is 0; A clutch is installed on the transmission chain. During the cruising phase, the motor stops working. The transmission chain between the oil-powered engine and the rotor cannot be transmitted to the rotor due to the disconnection of the clutch. The oil-driven engine only provides power for the front drive chain. At the same time, the propeller The blade angle is adjusted to the proper cruise driving angle. like figure 1 As shown, the main ...

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Abstract

A fuel-electric hybrid matching method and power system for a rotary wing aircraft, which is characterized by using a combination of a petrol engine and an electric motor as the power system, selecting an oil-powered engine with economical fuel consumption and power that meets the power required by the aircraft during the cruise phase, and the motor power is The difference between the maximum power required by the aircraft during vertical takeoff and landing and the maximum power of the oil-powered engine. The invention not only ensures that the maximum output power of the power system meets the vertical take-off and landing requirements of the aircraft, but also ensures that the oil-driven engine can work in a high-efficiency and low-power consumption state during the fixed-wing cruise phase, thereby improving flight efficiency and engine working conditions. , which can improve the engine working life.

Description

technical field [0001] The invention relates to an unmanned aerial vehicle technology, in particular to a power matching technology for a medium-to-large unmanned aircraft, in particular to an oil-electric hybrid power matching method and system for a rotary wing aircraft. Background technique [0002] Rotary wing aircraft is a new type of unmanned aircraft that has both the vertical take-off and landing performance of a helicopter and the high-speed cruise performance of a fixed-wing aircraft. The patent number is ZL201110213680.1, and the Chinese patent titled "A Rotary Wing Aircraft with Variable Flight Mode" is a typical model. The aircraft has a three-plane aerodynamic layout. Among them, in the helicopter flight mode, the main wing can rotate as a rotor to provide the required pulling force for the aircraft. At the same time, when the aircraft has a certain flight speed, it can be locked as a fixed wing to achieve high-efficiency fixed-wing flight. Therefore, during ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D27/02B64D35/02B64D35/08B64C27/12
CPCB64C27/12B64D27/02B64D35/02B64D35/08B64D27/026
Inventor 高正红那洋何澳
Owner 南京灵龙旋翼无人机系统研究院有限公司
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