轻型汽油车工况法排放检测方法相关性研究

A Study on Correlativity of the Multi-Mode Emission Measurement Method for Gasoline Light-Duty Vehicles

研究了在用轻型汽油车稳态ASM、瞬态IM195、GB18352.1—2001要求的全工况、GB18352.1—2001中的城市工况以及城市工况的第一个循环工况共5种不同的排放检测方法的相关性。测试并分析了3台本田雅阁车辆在这5种排放检测方法下的排放特性。结果表明,瞬态排放检测方法比稳态ASM方法能较全面地反映车辆的技术状态,瞬态IM195与GB18352.1-2001中城市工况检测方法的相关性较高,其中HC与NOx高于90%,CO也达57%以上。

Correlativity of steady ASM, transient IM195,full modes,urban modes and modes in the first cycle of urban modes required by GB 18352.1-2001 has been studied.Emissions characteristics of 3 HONDA ACCORD cars are measured and analyzed with the five different measurement methods.Resuhs indicate that the transient IM195 method can reflect vehicle technology states more fully than the steady ASM;transient IM195 and urban modes required by GB 18352.1-2001 have high correlativity,in which correlativity of HC and NOx is above 90 %,and that of CO is up to 57 %.