With EGT strategy, the pumping loss is reduced due to the increase of intake manifold pressure, and the increase of intake temperature leads to the complete combustion and high combustion efficiency.

• 分析表明，废气滞留可以提高进气歧管压力，明显降低泵气损失；混合气温度提高促进燃烧更完全，使燃烧效率得以提高；