摘要
根据使用条件和要求,基于CRUISE软件,对CA7204车发动机与传动系之间的原匹配方案进行仿真和优化计算,并从动力性和燃油经济性2方面与原始试验数据进行对比,对整车模型进行标定。通过优化选择适当的传动系参数,可以在保证动力性能的前提下改善车辆的燃油经济性。研究结果表明:优化后各挡等速油耗均有所下降,其中城市行驶常用挡位四挡、五挡的等速60 km/h油耗降幅超过8%,整车新欧洲循环(即NEDC循环)油耗由原来的7.52 L/(100 km)降低到7.01 L/(100 km),降低了6.78%,而其动力性能下降幅度很小。
Using CRUISE software,the CA7204 saloon car＇s original matching project between the engine and power train was simulated and calculated for optimization.By comparing the results with the raw experimental data in both aspects of power performance and fuel economy performance,the vehicle model was demarcated.By selecting proper power train parameters to meet the engine＇s working characteristics,the fuel economy performance was improved with the power performance insured.The results show that the fuel consumption of all kinds of gears at constant speed declines to some degree after optimization,and fuel consumptions at constant speed of 60 km/h on 4 and 5 gear,which is common in city,decline by 8%;vehicle fuel consumption in NEDC test declines from 7.52 L/（100 km） to 7.01 L/（100 km）.Fuel is saved by 6.78%;while the vehicle power performance is only slightly affected.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第3期677-681,共5页
Journal of Central South University:Science and Technology
基金
湖南省教育厅科研项目(09C894)
关键词
发动机
传动系
匹配
仿真
优化
engine
power train
matching
simulation
optimization
