甲醇发动机低温冷起动策略研究  

Research on Cold Start Method and Strategy of Methanol Engine

作　　者：郭啸峰 孙建军 刘义强 方会咏 舒新建 GUO Xiaofeng;SUN Jianjun;LIU Yiqiang;FANG Huiyong;SHU Xinjian(Ningbo Geely Royal Engine Components Co.,Ltd.,Ningbo,Zhejiang,315336,China)

机构地区：[1]宁波吉利罗佑发动机零部件有限公司,浙江宁波315336

出　　处：《小型内燃机与车辆技术》2024年第2期65-68,共4页Small Internal Combustion Engine and Vehicle Technique

摘　　要：研究了提升甲醇发动机在低温下起动标定的策略方法。对于甲醇发动机,低温起动困难一直是甲醇燃料的痛点问题,提出多种优化及技术措施,包括喷油策略优化,起动转速提升,预加热等措施,都不同程度地提升了甲醇发动机的低温冷起动性能。在漠河环境温度-30℃,甲醇发动机可以顺利起动。The methods and strategies to promote methanol engine cold start performance are studied.For methanol engine,the difficulty of cold start is always the pain point of the methanol fuel.Several optimization and technical measures are put forward,including the optimization of injection strategy,increasing start speed,and engine pre-heating.Above methods and strategies have improved the cold start performance of methanol engine to varying degrees.The methanol engine started smoothly at the ambient temperature of-30℃in Mohe,China.

关 键 词：甲醇发动机 冷起动 预加热 

分 类 号：TK464[动力工程及工程热物理—动力机械及工程]