由於台灣市區交通擁擠與過多的交通號誌,使機車經常行駛於等停紅綠燈、起步與加速頻繁且擁擠的駕駛環境,因此造成大量的排污與耗能,不但造成社會大量的成本負擔,機車乘客也身受其害。本研究主要針對燃料噴射機車,評估未來法規強制新出廠機車裝置等停紅綠燈自動怠速熄火與啟動系統之省能與污染減量效益以及可行性。工作項目包括:(1)實驗設備的建置;(2)實測上班尖峰時段蒐集屏東市區之主要道路路段之機車駕駛模式車速時間序列,以及油耗、引擎轉速、空燃比等即時(real time)數據;(3)將市區行駛模式資料重建於四象限機車底盤動力計上,以利後續之研究;(4)建立利用油耗、引擎轉速、空燃比等即時(real time)數據,推估機車於市區行車模式下之加速過程之CO暫態排放量的方法;(5)完成噴射機車實施怠速熄火之可行性評估,並提出一種噴射機車噴油脈寬調變技術,提升怠速熄火之省能與污染減量效益。 實驗結果顯示,在屏東市區行駛模式下,實行怠速熄火結合本研究之噴油調變技術,與沒有實行怠速熄火的機車油耗相比較,省油率達13.4%,減少50.2 %的CO排放量,證明實行怠速熄火之可行性與效益。
The scooter is one of the main transportation tools in Taiwan. Due to heavy traffic load in city, driving conditions such as stopping, starting and accelerating are encountered frequently. This threaten the health of the scooter drivers deadly by air pollutants. Thus the Taiwan Environmental Protection Affairs (EPA) is going to propose a new regulation that requests every new scooter in Taiwan equip with automatic idle stop-and-go system. This thesis is aimed at studying effects of the idle stop-and-go system on scooter in terms of energy saving and emission reduction. The works include experimental equipment set-up, recording a typical urban driving pattern in Taiwan, and finally propose a method to enhance the performance of the idle stop-and-go system in reducing air pollutants and fuel consumption. The experimental results have shown that with the use of the proposed idle stop-and-go system, the scooter can improve the fuel consumption rate up to 13.4% and reduce CO emission up to 50.2% compared with that of without the idle stop-and-go system on the recorded urban drive pattern.