摘要
针对TU5JP4汽油机低温起动过程进行试验,分析研究了配气相位进气时刻的改变对内燃机低温起动及排放的影响.结果表明,适当推迟进气门打开时刻,改变进气门和排气门的重叠角,适当减少气缸内进气量,相对增大废气量,不仅使内燃机低温起动燃烧作功明显改善,起动持续时间减少,而且有利于降低内燃机低温起动产生的CO和HC废气量.
By making use of Matlab software and its data acquisition toolbox, design data acquisition system based on sound card. Analyze and design method and the Matlab programming language implementation process and method of the data acquisition and analysis system as well as the acquisition of the speech signal with noise filtering.
出处
《成组技术与生产现代化》
2014年第1期50-55,共6页
Group Technology & Production Modernization
基金
东风特装车匹配重点实验室开发计划资助项目(DNDV10029)
河南省科技攻关计划资助项目(2011DV21016)
