Gasoline engine rotation speed control system for small unmanned helicopter and control method of gasoline engine rotation speed control system for small unmanned helicopter

Abstract

The invention discloses a gasoline engine rotation speed control system for a small unmanned helicopter. The control system comprises a rotation speed measuring module, a core controller module, a control signal executing module and a power source management module. The rotation speed measuring module comprises a rotation speed signal acquisition module, a rotation speed calculation module and a data processing module. The invention further discloses a control method of the gasoline engine rotation speed control system for the small unmanned helicopter. The control method includes the following steps that firstly, a high-pressure pulse signal is generated once an engine rotates by a circle, and the high-pressure pulse signal is connected into the rotation speed calculation module through an external capturing interface of a timer in the rotation speed signal acquisition module; secondly, the rotation speed value of the engine is calculated through a T method; thirdly, fused rotation speed data and data of a GPS module are analyzed respectively; fourthly, the difference value between a set rotation speed value and a measured rotation speed value is calculated through a rotation speed control algorithm; and fifthly, the rotation speed of the engine is changed. The gasoline engine rotation speed control system for the small unmanned helicopter and the control method of the gasoline engine rotation speed control system for the small unmanned helicopter have the beneficial effects of being good in extensibility, wide compatibility and the like.

Description

technical field [0001] The invention relates to a technology for controlling the engine speed by using the principle of automatic control, in particular to a small unmanned helicopter gasoline engine speed control system and its control method. The invention is suitable for the speed control of the small unmanned helicopter gasoline engine. Electronic systems such as speed measurement, data communication, and control signal output. Background technique [0002] Most of the small (micro) unmanned helicopters currently in use are driven by electric power. This is because the structure of the electric drone is relatively simple, the controller design is highly operable, and the interference of the electric motor to the communication system is relatively small. Due to the limited power of its power system, this type of helicopter is often unable to provide a large payload, and its stagnation time and effective range are greatly limited. Therefore, when performing long-distance,...

AI Technical Summary

Problems solved by technology

At present, domestic and foreign research results on unmanned gasoline engines are limited, and there are relatively few control systems for gasoline engines on unmanned helicopters. It can be seen that in order to minimize the impact of gasoline engines on helicopter control, it is necessary to design a gasoline engine. Independent controller, which enables it to provide stable power output for the helicopter

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