There is great disparity between internal and foreign diesel vehicle emission control technologies, especially in light duty high speed diesel engine emissions. How to control diesel vehicle emissions effectively is very important for Chinese diesel vehicle development. 我国柴油车排放控制技术同国外还存在较大差距,特别是在轻型高速柴油机排放方面差距更大,如何有效控制柴油车排放对我国柴油车的发展十分重要。