起燃时间对PHEV汽车WLTC循环排放及油耗影响

Effects of Light-off time on Emission and Fuel Consumption During WLTC Cycle of PHEV Vehicle

基于一辆搭载1.4L增压汽油机的PHEV汽车,通过WLTC循环工况测试,分别对比研究了不同起燃时间对整车试验循环排放及油耗的影响。研究发现,当起燃控制时间由90秒缩短为80秒后尾气排放均有一定程度的恶化。其中NMHC排放恶化最为明显,增加32.7%;但是,油耗得到一定的改善,其中第一阶段和综合油耗分别下降了22%和1.77%。

Studied the effects of Light-off time on emission and fuel consumption during WLTC cycle base on a PHEV vehicle equipment a turbo charged 1.4L engine.Research suggest that the emission will be deteriorated particularly the emission of NMHC will increase 32.7%when the Light-off time decrease from 90 seconds to 80 seconds;While the fuel consumption will be improved as the fuel consumption of first phase decreased 22%and the Comprehensive oil consumption decreased 1.77%.