摘要
基于一款自然吸气4缸PFI发动机,结合电喷标定策略,从发动机运行的典型工况进行解析,对冷启动、怠速、加速、减速减油以及减速断油工况下缸内燃烧情况进行统计分析,得出某些工况下严重的失火或后燃烧引发过高的催化器温度,提出了爆震自学习控制功能,为发动机电喷标定及后处理系统的优化提供了可行性技术路线。
Based on a 4 cylinder PFI（Port Fuel Injection） engine with calibration method and analyzed from the common working conditions of the engine, combustion in cylinders were analyzed at the cold start, idle speed, transient condition and fuel cut off, the serious after-burning will cause a high catalyst temperature. The self-learning strategy of knock control is introduced, and the feasible technical routes are provided for engine calibration and after processing optimization.
出处
《内燃机》
2016年第2期1-4,共4页
Internal Combustion Engines
关键词
催化器
烧蚀
后燃烧
爆震自学习
catalyst
ablation
after-burning
knock self-learning
