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| Measurement， Control and Modeling Method of Piston Engine on Light Unmanned Aerial Vehicle |
| DOI：10.13949/j.cnki.nrjgc.2022.04.008 |
| Key Words:light unmanned aerial vehicle（UAV） piston engine measurement and control test bench multiple linear regression universal characteristic curve experimental modeling numerical model |
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| Abstract:Based on the uncertainty of fuel consumption in the application of piston engines on hybrid power unmanned aerial vehicle（UAV） systems， a set of light UAVs’ piston engine measurement and control test bench was developed based on the Arduino platform. The total design scheme of the test bench was given， and the overall structure and functions of the measurement and control system were described. Based on the multiple linear regression method， the data collected by the test bench were processed. The equal fuel consumption characteristic curve and equal power characteristic curve of the engine were fitted into a three-dimensional model in MATLAB， and the universal characteristic curve of the piston engine was further obtained. The steady-state model of the piston engine was established based on this method. In addition， light UAVs’ piston engine dynamic model was established in Simulink software with the experimental modeling method. The model data was compared to physical data to verify the validlity of the modeling method. Result shows that the measurement and control test bench have high stability and accuracy， and the numerical model of piston engine can better characterize the steady and dynamic response process of the engine. The fuel-efficiency area of the light UAVs’ piston engine can be found with the modeling method. |
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