基于电控调压器的压缩天然气发动机电控系统  

Design and Experiment on the Electric Control System Based on EPR for the CNG Engine

作　　者：王都[1] 宋君花[1] 冒晓建[1] 卓斌[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《农业机械学报》2009年第3期46-50,45,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家"863"高技术研究发展计划资助项目(2006AA11A1A9)

摘　　要：针对国Ⅳ及以上排放标准,设计了基于电控调压器的重型车用稀燃增压压缩天然气发动机电控系统,阐述了燃气供给系统、进气管理系统和点火系统的结构特点和控制原理。阐述了电控调压系统原理,及其相对于喷射系统的优势。发动机试验结果表明,其最大功率和最大转矩都与原型柴油机相当,而排放达到国Ⅳ标准。In order to meet the stage-Ⅳ emission standard in China,a electric control system based on EPR（electronic pressure regulator） for the lean-burn turbocharging heavy-duty automotive CNG engine was developed.The configuration and control principle of the CNG supply system,the intake management system and the ignition system were analyzed.By comparing with the multi-points injection system and single-point injection system,the principle and advantage of the EPR were analyzed.The Experiment indicates that the maximal power and the maximal torque of the CNG engine are close to those of the original diesel engine,and the emissions meet the stage-Ⅳ emission standard in China.

关 键 词：天然气发动机 电控调压器 设计 试验 稀燃 增压 

分 类 号：TK464[动力工程及工程热物理—动力机械及工程]