实现汽油机的均质混合气压燃(HCCI)的难点是精确地控制着火时刻、燃烧速率以及扩展高负荷运行范围.在缸内直喷汽油机(GDI)上试验研究了分层混合气和辅助火花点火对HCCI燃烧特性的影响,考察了对不同运行工况时的适应性.开展了负阀重叠与缸内多段喷油相结合控制HCCI着火稳定性的研究,考察了不同喷油控制策略对HCCI燃烧的影响,确定了HCCI运行工况范围.
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