摘要
为准确分析车辆转动惯量估算误差对估算的汽车碰撞车速的影响,应用摄动理论建立了相应的分析方法和评价指标。应用分析方法对一起典型汽车碰撞实例的研究表明:对于质量相差较大的两车碰撞事故,高估重车转动惯量,而低估轻车转动惯量时,估算的轻车碰撞前车速的误差最大。
For accurately analyzing the influence of the estimation error of vehicle moment of inertia on the estimate of pre-crash speed, an analysis method and evaluation indicators are established by applying perturbation theory. The results of applying the analysis method to a typical vehicle collision case show that for a crash accident of two vehicles with great difference in mass, an overestimation of heavier vehicle moment of inertia with an underes- timation of lighter vehicle moment of inertia may lead to the most significant error of pre-crash speed estimate for lighter vehicle.
出处
《汽车工程》
EI
CSCD
北大核心
2015年第2期175-178,154,共5页
Automotive Engineering
基金
国家自然科学基金(51178001)
吉林省教育厅科学技术研究项目(2011141)
吉林市科技发展计划项目(20090404)资助
关键词
车辆
转动惯量
碰撞前车速
vehicle
moment of inertia
pre-crash speed
