機車引擎怠速熄火之啓動特性研究

Starting Characteristics of a Motorcycle Engine with Idle-stop Strategy

吳東翰(Dong-Han Wu) ； 尤富芃(Fu-Peng Yu) ； 邱韋丞(Wei-Chen Chiu) ； 洪榮芳(Rong-Fang Horng) ； 蔡建雄(Chien-Hsiung Tsai) ； 曾全佑(Chyuan-Yow Tseng)

《燃燒季刊》 80期 (2013/02) Pp. 50-63

https://doi.org/10.30041/CQ.201302_(80).0005

摘要

本研究針對機車「怠速熄火」之後，引擎的再啟動特性進行探討。目的在於縮短引擎啟動時間、降低啟動耗能、減少啟動過程的污染排放。研究方法為改變啟動器的齒比以改變啟動轉速，並實施噴油寬度的改變，以找出較佳的啟動特性。量測參數包括引擎轉速、引擎汽缸壓力，及啟動馬達所消耗電流等，並分別進行分析討論。由測試結果顯示，原車大約3-4個循環可啟動引擎；齒比由26.8改變至19.1時，在引擎熄火前，以3ms噴油寬度的燃料預先噴入燃燒室內，可得較佳的啟動特性，約1-2個循環即可成功啟動。

關鍵字

怠速熄火 ； 快速啟動 ； 污染排放

並列摘要

In this study, the re-starting characteristics of a motorcycle engine under idle-stop were investigated. The aim of this study is to shorten the engine start-up time, reduce energy consumption and pollution emissions during start-up. In the initial stage of the study, the gear ratio of the starter was changed, and the parameters of the engine speed and cylinder pressure and the starting current of motor were measured and analyzed. The results showed that supplying the fuel injection duration of 3 milliseconds into the combustion chamber before the engine was stopped would give the quicker restarting characteristics.

並列關鍵字

Idle-Stop ； quick start ； exhaust emissions