摘要
发动机的性能好坏直接影响到混合动力汽车整车的动力性和经济性,基于此,本文在Atkinson循环的理论指导下,运用GT-POWER仿真软件对国内某混合动力汽车用发动机进行了数值研究,研究了压缩比与进气门关闭角对发动机性能的影响,并提出了改善经济性的优化设计方案。仿真结果表明,采用优化的设计方案以后,发动机在中高转速时的有效燃油消耗率得到很大改善。本文的研究成果可为混合动力汽车用发动机的设计及优化提供理论和实际参考价值。
The performance of engine has direct impaction on the power and economics of HEVs. Based on the theory of Atkinson, a numerical research has been taken to the engine of HEVs with GT-POWER softwave.The influence of compression ratio and intake valve angle on the performance of engine has been researched. A suggestion to improve the economic performance has been designed. The optimized result showed that brake specific fuel consumption of engine at middle andhigh speed has been greatly improved. The current results can serve as the reference for designing and optimizing HEVs engine.
出处
《现代制造技术与装备》
2010年第4期5-7,共3页
Modern Manufacturing Technology and Equipment
