本文介绍了摩托车排放的WMTC(W orld-wide Motorcycle Test Cycle)测试循环,研究了WMTC测试循环的行驶特征及其与欧3排放测试循环的差异,并初步探讨了两种测试循环下摩托车排放因子的相关性。研究结果表明,较之欧3测试循环,WMTC怠速比例...本文介绍了摩托车排放的WMTC(W orld-wide Motorcycle Test Cycle)测试循环,研究了WMTC测试循环的行驶特征及其与欧3排放测试循环的差异,并初步探讨了两种测试循环下摩托车排放因子的相关性。研究结果表明,较之欧3测试循环,WMTC怠速比例低,稳态工况少,瞬态工况比例高,对摩托车的排放控制技术提出了更为苛刻的要求。WMTC测试循环下和欧3测试循环下摩托车排放因子的相关性分散度较大,且规律性并不明显,表明两种排放因子的相关性有可能只存在于统计意义上。展开更多
Test results of reducing two stroke motorcycle emissions with new type carburettors and electronic fuel injection systems are presented. Analyses and comparison between different systems are discussed. The adoption o...Test results of reducing two stroke motorcycle emissions with new type carburettors and electronic fuel injection systems are presented. Analyses and comparison between different systems are discussed. The adoption of electronically controlled injection and corresponding electronic control technique is an effective measure of prolonged vitality to improve emissions from two stroke motorcycles. Suggestions about the strategic steps of China′s motorcycle emission control are proposed.展开更多
文摘本文介绍了摩托车排放的WMTC(W orld-wide Motorcycle Test Cycle)测试循环,研究了WMTC测试循环的行驶特征及其与欧3排放测试循环的差异,并初步探讨了两种测试循环下摩托车排放因子的相关性。研究结果表明,较之欧3测试循环,WMTC怠速比例低,稳态工况少,瞬态工况比例高,对摩托车的排放控制技术提出了更为苛刻的要求。WMTC测试循环下和欧3测试循环下摩托车排放因子的相关性分散度较大,且规律性并不明显,表明两种排放因子的相关性有可能只存在于统计意义上。
文摘Test results of reducing two stroke motorcycle emissions with new type carburettors and electronic fuel injection systems are presented. Analyses and comparison between different systems are discussed. The adoption of electronically controlled injection and corresponding electronic control technique is an effective measure of prolonged vitality to improve emissions from two stroke motorcycles. Suggestions about the strategic steps of China′s motorcycle emission control are proposed.
