摘要
以某款配置汽油机颗粒捕集器(gasoline particle filter,GPF)发动机为研究对象,建立了基于博世BOASH MED17810平台的发动机GPF标定试验台架,分析了GPF中碳载量对发动机性能的影响,并研究了不同温度、不同氧流量、碳载量对GPF燃烧速率的影响规律,以及燃油中断时间对GPF温升变化的影响。试验结果表明:增加GPF后,发动机外特性扭矩比GPF原始无碳载量的扭矩低,功率降低约5 kW;温度越高、氧流量越大、载碳量越多,GPF燃烧速率越快。当GPF碳载量为5 g、燃油中断30 s时,GPT载体温度达到GPF材料的耐受温度阀值。
Taking an engine with gasoline particle filter(GPF)as the research object,a GPF cali⁃bration test bench based on the BOASH MED17810 platform was established.The influence of GPF with and without carbon load on engine performance was analyzed.The influence of different temperatures,oxygen flow rates and carbon loads on GPF combustion rate and the influence of fuel cut⁃off time on GPF temperature rise were also studied.The results showed that the torque of the engine with GPF carbon load was lower than without carbon load,and the power was reduced by about 5 kW.The higher the tempera⁃ture,the greater the oxygen flow,and the more the carbon,the faster the GPF combustion rate.The GPF carrier temperature reached the tolerance threshold of GPF material after fuel was cut off for 30 s when the carbon load was 5 g.
作者
李树宇
LI Shuyu(Chery Automobile Co,Ltd,Wuhu 241000,China)
出处
《柴油机设计与制造》
2020年第2期22-25,共4页
Design and Manufacture of Diesel Engine
关键词
汽油颗粒捕集器
再生
累碳量
燃烧速率
温度
gasoline particle filter
regeneration
carbon loads
burning rate
temperature
