基於扭力式引擎管理系統應用於電動車增程器引擎之研究

由於世界能源危機，各大車廠逐漸投入研發低污染車輛，增程式電動車被視為短期內解決電動車續航力的短期替代方案。本論文將半直接噴射引擎作為電動車增程器引擎，並以較廉價液化石油氣當作燃料。同時本論文發展了一基於扭力式引擎管理系統控制架構，以「扭力」變化為命令來滿足引擎扭力需求，而這扭力命令是能量管理策略的結果並傳給引擎，因此引擎管理系統必須要有能力接受扭力命令，並且達成扭力需求的功能。本論文用一半直接噴射引擎並將其維持在稀薄燃燒的情況下透過引擎實驗找出最佳噴射正時、訂出最佳過剩空氣比，最後進行引擎性能的實驗，將引擎固定在最佳性能下找出2個最適合的運轉點：第一個為油耗最低高扭力的點；第二個考慮振動與噪音影響駕駛者之因素，選擇轉速扭力較低之運轉點。本論文同時用Matlab/Simulink建立引擎模型來評估所提出的引擎管理系統控制架構，最後利用引擎實驗來驗證引擎管理系統是否能讓引擎滿足扭力需求，由模擬及實驗結果顯示本論文所提出的控制策略可以讓引擎維持在最佳運轉點下，並符合電動車增程器的扭力需求，達到高效率省油之目標。

關鍵字

引擎管理系統；扭力控制；半直接噴射系統；電動車增程器

並列摘要

Due to the energy crisis , an Electric Vehicle with Range Extender is regarded as the solution of short distance of the electric vehicle , this thesis would like to develop a range extender engine which has Semi-direct Injection (SDI) system and uses cheaper liquified petroleum gas (LPG) as the fuel . A torque-based engine control system described in the thesis uses a control demand to control and satisfy torque requirement. This torque demand is the result of power management strategy, so the engine management system must include the function of receiving and achieving the torque demand. This thesis uses a SDI engine and keeps it in lean-burn to find the best ignition timing, excess air ratio and the engine map, than finds 2 best operating point of the engine: The first is the point which has high torque and lowest fuel consumption; the other one is considerate of noise vibration harshness , so a lower speed and torque is the second operating point. The thesis also use an engine model by Matlab/Simulink to simulate the control strategy, finally the verification of the algorithm by engine experiment. The result shows that the torque-based engine control algorithm makes the engine run at the best operating point steadily, which opens up potential for improvement high efficiency and reduction in fuel consumption

並列關鍵字

Engine Management Systems ； Torque Control ； Semi-direct Injection System ； Electric Vehicle of Range Extender

參考文獻

[8] 楊清潭，運用CFD數值方法於SDI引擎層狀進氣之研究，碩士論文，國立臺北科技大學車輛工程系，台北，2011。

[2] M. Atzwanger, C. Hubmann, W. Schoeffmann, B. Kometter and H. Friedl, “Two-Cylinder Gasoline Engine Concept for Highly Integrated Range Extender and Hybrid Powertrain Applications” SAE Paper No. 2010-32-0130.

[3] A. Rust and B. J. Graf, “NVH of Electric Vehicles with Range Extender,” SAE Paper No.2010-01-1404.

[5] F. J. Laimböck, H. Klasnic, S. Grilc, G. F. Meister and M. J. Dorfstätter, “AVL SDIS Mk.II Low-cost automotive F1 applied to 2-stroke engines for future CARB Regulations,” SAE Paper No. 1999-01-3285, 1999.

[6] Y. Y. Wu, B. C. Chen and A. T. Tran, “Application of Semi-Direct Injection for Spark-Ignition Engine,” International Journal of Vehicle Design, vol. 54, no. 4, 2010, pp. 356-370.

國際替代計量

基於扭力式引擎管理系統應用於電動車增程器引擎之研究

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