Speed and fuel control are key issues in automotive engine management . a good solution to speed control is very important to automated highway project . fuel control relating to engine performance is always a research emphasis 在汽車發動機的控制中,轉速和燃油控制是二個非常關鍵的項目,特別是自動化高速公路計劃( automatedhighwayproject )提出來以后,尋求一個較好的解決汽車發動機轉速(汽車速度)控制方案是現代汽車工業面臨的一個新課題。