CAJ | 학술논문

在总结我国高原气候和地理环境特点的基础上，从反映车辆动力性能的指标出发，以加速时间、最大爬坡度和最高车速入手，理论分析了对整车高原动力性影响较大的因素，主要包括有效热效率、循环喷油量、滚动阻力系数、空气密度对空气阻力的影响等。通过分析高原环境对这些因素的影响，总结出了高原环境对车辆动力性的影响机理，并进一步提出了整车高原动力性改进的技术措施，认为先进增压、燃烧优化、高压共轨燃油喷射、高原环境标定、热平衡控制和富氧进气燃烧等技术措施成为提高车辆动力性的有效技术措施。
재총결아국고원기후화지리배경특점적기출상，종반영차량동력성능적지표출발，이가속시간、최대파파도화최고차속입수，이론분석료대정차고원동력성영향교대적인소，주요포괄유효열효솔、순배분유량、곤동조력계수、공기밀도대공기조력적영향등。통과분석고원배경대저사인소적영향，총결출료고원배경대차량동력성적영향궤리，병진일보제출료정차고원동력성개진적기술조시，인위선진증압、연소우화、고압공궤연유분사、고원배경표정、열평형공제화부양진기연소등기술조시성위제고차량동력성적유효기술조시。
Based on summarizing characteristics of climatic and geographical environment, the factors which affect dy-namic performance of vehicles characterized by acceleration time, maximum gradability and maximum vehicle speed evi-dently were analyzed theoretically, which included effective thermal efficiency, fuel delivery per cycle per cylinder, coeffi-cient of rolling resistance and effects of air density on air friction, etc. The mechanism of plateau environment on power performance of vehicles were got by analyzing the impacts of plateau environment on these factors. Then technical measures to improve plateau power performance of vehicles were put forward. Advanced turbocharging technique, combustion optimi-zation technique, common rail fuel injection technique, plateau environment calibration technique, heat balance control technique and oxygen-enrichment combustion technology were deemed to be effective measures to improve power perform-ance of vehicles in plateau.