Flight matching method of piston engine and unmanned helicopter

Abstract

The invention discloses a flight matching method for a piston engine and an unmanned helicopter. The method comprises the following operation steps: judging the current flight state of the unmanned helicopter; if the current unmanned helicopter is in the hovering state, the corresponding relation between the accelerator OIL and the total distance is finally obtained through the relation between the required power NXU and the total distance under different flight weights T; If the current unmanned helicopter is in the forward flight state, the corresponding relation between the accelerator OILand the total distance in the forward flight state is finally obtained through the relation between the required power NXU and the total distance at different forward flight speeds V0. According to the flight control method, force balance and power balance are guaranteed, and therefore flight accidents caused by improper coordination of the piston type unmanned helicopter and the engine are avoided.

Description

technical field [0001] The invention relates to the field of unmanned helicopters, in particular to a flight matching method of a piston engine and an unmanned helicopter. Background technique [0002] In the past ten years, with the rapid development of composite materials, power systems, sensors, and electronic technologies, especially the development of flight control technology, unmanned helicopters have developed rapidly. At present, unmanned helicopters are mostly small helicopters, most of which are equipped with piston engines. Since small piston engines have simple structures and no fuel adjustment system, how to ensure the matching of the two under any flight conditions has become the focus of research. [0003] Through the analysis of the flight principle of the unmanned helicopter, it is shown that the unmanned helicopter must ensure the tension balance and power balance at the same time in order to make a stable flight at a fixed height in the air: [0004] (1)...

AI Technical Summary

Problems solved by technology

Although the flight weight of the unmanned helicopter does not change much during flight, due to the unique aerodynamic characteristics of the rotor, its collective distance value is different under the same weight and different flight speeds;

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