某款增程器超级爆震故障分析及优化
Analysis and Optimization of Super Knock of A Certain Range Extender
范鹏 1邓湘 1毕帅 1孙永福 1周忠永1
作者信息
- 1. 岚图汽车科技有限公司,武汉 430056
- 折叠
摘要
目前,增程式电动汽车随着市场的关注成为了各厂家开发的焦点,其中增程专用发动机(DHE,Dedicated Hybrid Engine)的开发更是重中之重.不同于传统燃油车,DHE更加注重高效、集成、静谧的特性,因此其开发边界与整车的功率需求有着强耦合关系.本文以某款增程器失效为例,通过对缸体破裂的分析展开,重点对发动机的热管理架构及燃烧特性进行了改善及优化,进一步规避了系统冷却能力不足以及低速早燃导致超级爆震的风险.该论文对增程器的开发以及类似故障解析具有一定参考价值.
Abstract
At present,with the attention of market,more OEMs focus on the range extended electric vehicle development,especially for the development of dedicated hybrid engine(DHE).Different from traditional fuel vehicles,DHE pays more attention to its efficiency,integration and NVH performance,so its development boundary has the strong coupling relationship with generated power.Taking the failure of a range extender as an example,this paper focuses on improving and optimizing the thermal management architecture and combustion characteristics of the engine through the analysis of cylinder block rupture,and further avoids the risk of insufficient cooling capacity and the risk of super knock caused by LSPI(Low Speed Pre-ignition).This paper has a certain reference value for the development of range extender and similar issue analysis.
关键词
增程式电动汽车/增程器/低速早燃/超级爆震Key words
Range Extended Electric Vehicle/Range Extender/LSPI/Super Knock引用本文复制引用
出版年
2024
NETL
NSTL
万方数据