天然气发动机匹配混合动力系统催化器烧蚀问题研究  

Study on Catalyst Carrier Melting Problem of Natural Gas Engine Matching Hybrid System

作　　者：李亮 唐志刚 王佳兴 李哲 孙丰山 LI Liang;TANG Zhi-gang;WANG Jia-xing;LI Zhe;SUN Feng-shan(Weichai Power Co.,Ltd.,Weifang 261001,China;Weichai Westport Co.,Ltd.,Weifang 261001,China)

机构地区：[1]潍柴动力股份有限公司,潍坊261001 [2]潍柴西港新能源动力有限公司,潍坊261001

出　　处：《内燃机与配件》2021年第24期44-47,共4页Internal Combustion Engine & Parts

摘　　要：针对天然气发动机匹配混合动力系统催化器烧蚀问题,通过分析同步采集的发动机数据和混合动力系统数据,确定混合动力系统匹配不当,引起不合理燃气喷射,是导致催化器烧蚀的主要原因。优化发动机转速信号采集及混合动力系统起动、停机控制策略,改进混合动力系统与发动机之间的匹配,能够有效解决催化器烧蚀问题。In view of the melting problem of the catalyst carrier of the natural gas engine matching hybrid power system,the synchronously collected engine data and hybrid power system data are analyzed to identify the cause.It was found that improper hybrid system matching caused unreasonable gas injection.By optimizing the acquisition of engine speed signals and the start and stop control strategies of the hybrid power system,it improves the matching problem of the hybrid power system and the engine.The results show that it can effectively solve the melting problem of catalyst carrier.

关 键 词：天然气发动机 混合动力系统 催化器烧蚀 

分 类 号：U464[机械工程—车辆工程]