Engine controller for extended-range hybrid unmanned aerial vehicle

Abstract

The invention discloses an engine controller for an extended-range hybrid unmanned aerial vehicle. The engine controller comprises a circuit board and a connector; the circuit board is provided with a microcontroller module, a power module, a rotating speed signal processing module, a communication module, an analog input module, a low-side driving module and an ignition driving module, the microcontroller module is used for analyzing a control instruction and processing and post-processing acquired data, the microcontroller module is electrically connected with the power supply module, the rotating speed signal processing module, the communication module, the analog input module, the low-side driving module and the ignition driving module on the circuit board respectively; and the connector is provided with an analog quantity signal interface, a digital quantity signal interface, an engine ignition signal interface, an oil injection control signal interface, a communication interface and a power supply interface. Accurate control can be carried out to enable the engine to operate under different working conditions, and state monitoring of the engine is achieved; and in addition, the controller has the advantages of low power consumption, fault diagnosis, safety redundancy and electromagnetic interference resistance, and the flight safety of the engine is ensured.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an engine controller for an extended-range hybrid unmanned aerial vehicle. Background technique [0002] Due to its simple structure and good stability, multi-rotor UAVs have occupied the mainstream of civilian UAVs. However, at present, the flight time of electric drones is too short due to various restrictions. The battery life of the UAV depends mainly on the energy density of the battery. In recent years, the development of related technologies in this area has fallen into a bottleneck. Therefore, it is necessary to use hybrid power to improve the battery life. However, most of the engines currently used in hybrid drones are carburetor-type, and the engine controller is integrated in the entire power management system. After the battery power SOC reaches a certain limit, the engine is started to make the engine work at a certain value. Specific speed, and a...

AI Technical Summary

Problems solved by technology

However, most of the engines currently used in hybrid drones are carburetor-type, and the engine controller is integrated in the entire power management system. After the battery power SOC reaches a certain limit, the engine is started to make the engine work at a certain value. Specific speed, and adjust the throttle valve of the engine through the power management controller to stabilize the speed of the engine Rotating speed

[0003] But the engine of existing unmanned aerial vehicles has the following problems: the engine can only work in a relatively fixed working condition, and it is different by adjusting the ignition timing and fuel injection quantity, and the fuel injection timing makes the engine work at other high-efficiency operating points to drive The motor follows the power; the working status of the engine cannot be monitored in real time, and the fault diagnosis of the engine cannot be performed, so the flight safety of the engine cannot be guaranteed; the control module of the engine control and other components is integrated in the same controller, and the electromagnetic compatibility cannot be well controlled

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