摘要
通过试验方法对在用汽油车在稳态ASM工况、IG 195瞬态工况下的排放特性进行研究 ,并与怠速 /双怠速工况下的排放测试结果进行比较 ,分析车龄与排放、发动机燃油供给方式与排放的关系 。
The exhaust emission characteristics of vehicle in use are studied by the test of ASM steady mode,IG 195 instantaneous mode.And from comparison with the test results under double idle mode and idle mode,the relationship between the emission level and vehicle age,and emission level and fuel supply system of engine is analyzed.And the relationship of emission index with vehicle age is also discussed.
