無人機的研究與應用越來越廣泛，一般無人機的設計目標都是為了滿足某些任務需求，然而對於有高載重需求的無人機而言，改裝超輕為無人機是一個有效可行的方法。本論文主旨在於設計及驗證一套無人超輕液壓控制系統，從電壓穩定、回授訊號處理及液壓閥控制問題的改進，再輔以各參數的比例關係及參考電壓等方法來對液壓系統做控制，並將控制程式及電路系統整合於一塊液壓控制板上。本文最後以完整的飛行測試來驗證此套控制系統的可行性及超輕無人載具的操作性能。

The research and application of an UAV has become more and more widely nowadays. An UAV is generally designed to accomplish certain tasks. However, due to the demand of an UAV with high payload and performance demand, converting an ultra-light aircraft into an UAV is the most feasible and possible way to meet this requirement. This thesis focuses on the design and verification of the unmanned ultra-light hydraulic controlling system. The main problem on voltage stabilization, feedback signal processing and hydraulic valves control are discussed, and solved by including their proportional relationship and reference voltage. All the control programs and electric circuits are integrated into a control board for flight tests. The UUL flight control is finally completely verified with its control capability and maneuverability in flight performance tests.

[1].C. E. Lin, Y. C. Huang, Y. H. Lai, W. C. Huang, “Verification of Mobile Communication from Sky-Net”, 2011 National Communication Conference, Hua-Lien, November 18-19, 2011, pp. 959-962..
[2].C. E. Lin, Y. C. Huang, Y. H. Lai, Y. L. Yeh, W. C. Huang, “Airborne Antenna Tracking for Sky-Net Mobile Communication”, The 5th International Conference on Sensing Technology (ICST 2011), November 28 to December 1, 2011, Massey University, Palmerston North, New Zealand, pp. 569-574.
[3].T. P. Chen, “Digital Aircraft Instrument System of Ultra-light Aircraft with Digital Avionics”, Master Thesis, Department of Aeronautics and Astronautics, National Cheng Kung University, 2004.
[4].O. Spinka, J. Krakora, M. Sojka, Z. Hanzalek, “Low-Cost Avionics System for Ultra-Light Aircrafts”, Department of Control Engineering, Faculty of Electrical Engineering, Czech Technical University. Sept. 2006.
[5].V. Srovnal Jr, J. Kotzian, “Development of a Flight Control System for an Ultra-light Aircraft”, Proceedings of the International Multiconference on Computer Science and Information Technology, Vol. 3, 2008, pp. 745-750.
[6].S. E. Lyshevski, “Electromechanical flight Actuators for Advanced Flight Vehicles” IEEE Transactions on Aerospace and Electronic Systems Magazine, Vol. 35, No. 2, April 1990, pp. 511-518.
[7].A. Garcia, J. Cusido, J. A. Ortega, L. Romeral, “Reliable Electro-Mechanical Actuators in Aircraft”, IEEE Transactions on Aerospace and Electronic Systems Magazine, Vol. 23, No. 8, August 2008, pp.19-25.
[8].N. Robert, “Performance of an Electro-Hydrostatic Actuator on the F-18 Systems Research Aircraft”, Dryden Flight Research Center, Edwards, California, 1997.
[9].C. Greissner, “Control of an Electro-Hydraulic Actuator System for The Nose Landing Gear of an’ All Electric Aircraft”, Recent Advances in Aerospace actuation Systems and Components 2004, Toulouse, November 24-26, 2004.
[10].H. L. Pan, J. Yan, “Implement of Electro-Hydraulic Servo Control of Aero Variable Stroke Plunger Pump”, Advanced Materials Research Vols. 44.-444, 2012, pp. 313-318.
[11].T. Y. Lu, “Design and Verification for Unmanned Ultra-light Aircraft System”, Master Thesis, Department of Aeronautics and Astronautics, National Cheng Kung University, 2012.
[12].Eipper Aircraft MXL II Datasheet, Quicksilver Mfg.®, California, U.S.A., June 2012. Available on web:
http://www.quicksilveraircraft.com/
[13].C. E. Lin, Y. H. Lai, Y. C. Huang, C. C. Li, C. C. Nien, “System Design Approach for Experimental UAV”, Journal of Aeronautics, Astronautics and Aviation, Series A, Vol. 45 No. 1, March 2013, pp. 25-36.
[14].Magnetostrictive Linear-Position Sensor Datasheet, MTS. Sensors, N.C., U.S.A., June 2012. Available on web:
http://www.mtssensors.com/.
[15].A. Y. Lu, C. H. Yang, “The Future Challenges on Researches and Developments of Civil Unmanned Aircraft System in Taiwan”, Journal of Aeronautics, Astronautics and Aviation, Series B, Vol.44, No. 2, 2012, pp. 119-130.