高原环境下汽车PVE试验的动力性能与燃料经济性研究  

Study on power performance and fuel economy of automobile PVE test in plateau environment

作　　者：代兴海 Dai Xinghai(Zhongqiyan Automotive Inspection Center(Kunming)Co.,Ltd.,Kunming 651700,China)

机构地区：[1]中汽研汽车检验中心(昆明)有限公司,云南昆明651700

出　　处：《汽车知识》2023年第10期94-96,共3页Auto Know

摘　　要：探讨高原环境对汽车动力性能和燃料经济性的影响,以提供在高海拔地区汽车使用的科学依据。通过对西藏地区汽车保有量和交通基础设施的现状分析,结合国内外研究成果,以高原环境下汽车PVE试验为基础,重点研究了汽车在高原条件下的动力性能变化和燃料经济性的变化规律。研究结果表明:高海拔环境下,汽车动力性能受到明显影响,发动机功率降低,燃油消耗率上升,同时冷却系统散热能力需求增加。在高原环境下,应优化发动机设计、冷却系统和燃烧系统,以适应高原气压低、氧含量少的环境特点,从而提高汽车在高原地区的性能和经济性。This research aims to investigate the influence of plateau environments on automotive performance and fuel economy,providing a scientific basis for vehicle usage in high-altitude regions.By analyzing the current status of vehicle ownership and transportation infrastructure in Tibet and drawing from domestic and international research,this paper,based on plateau vehicle emission(PVE)tests,primarily examines the variations in automotive performance and fuel economy under plateau conditions.The research reveals that high-altitude environments significantly affect automotive performance,leading to decreased engine power,increased fuel consumption,and heightened demands on the cooling system's heat dissipation capabilities.In such plateau environments,optimizing engine design,cooling systems,and combustion systems is necessary to adapt to low air pressure and reduced oxygen levels,thus enhancing vehicle performance and economy in high-altitude regions.

关 键 词：高原环境 汽车 动力性能 燃料经济性 冷却系统 

分 类 号：U461.2[机械工程—车辆工程]