电机驱动模式下汽油机快速起动首循环初探  

Elementary Study on First Cycle of Gasoline Engine Quick Start under Motor Driving Mode

作　　者：韩立伟[1] 洪伟[1] 苏岩[1] 高翔 解方喜[1] 

机构地区：[1]吉林大学汽车动态模拟国家重点实验室,吉林长春130022 [2]德国大陆汽车电子长春有限公司,吉林长春130033

出　　处：《车用发动机》2010年第2期50-52,共3页Vehicle Engine

基　　金："八六三"国家高科技研究发展计划(2006AA110106)

摘　　要：针对起动—停止技术的应用,采用了1台高速电机拖动Jetta1.6 L发动机,进行热机起动试验。分析了不同喷油量和不同拖动转速对起动时首循环燃烧情况的影响。结果表明,在其他边界条件不变时,随着起动初期喷油量的提高,缸内燃烧会显著改善;随着拖动转速的提高,滞燃期有所增大,缸内最高燃烧压力有所下降。对于本发动机,最佳喷油脉宽为11 ms,最佳拖动转速为600 r/min。For the start-stop technology, the heat starting experiments were carried out by using a high-speed motor to drag a Jetta1. 6 L engine. The influences of different injection quantities and different dragging speeds on first cycle combustion performance were analyzed. The results show that, under other unchanged boundary conditions, the in cylinder combustion is obviously improved with the increase of first cycle injecting quantity. With the increase of dragging speed, the ignition delay period increases and the maximum combustion pressure decreases slightly. For the Jettal. 6 L engine, the optimal injection pulse width should be 11 ms and the optimal dragging speed should be 600 r/min.

关 键 词：汽油机 首循环 缸内压力 起动 高速电机 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程]