电动城市公交车制动能量回收评价方法  

Evaluation Method of Regenerative Braking for Electric City Bus

作　　者：仇斌[1] 陈全世[1] 

机构地区：[1]清华大学汽车安全与节能国家重点实验室,北京100084

出　　处：《机械工程学报》2012年第16期80-85,共6页Journal of Mechanical Engineering

基　　金：国家高技术研究发展计划资助项目(863计划;2006AA11A102)

摘　　要：制动能量回收是提高电动城市公交车整车能量效率的关键技术之一,但在评价制动能量回收对改善电动城市公交车能量效率作用方面目前国内外还缺少科学系统的方法。以一辆12 m电动城市公交车为研究对象,通过建立电动城市公交车制动过程能量流模型,提出一种涉及6个环节因素的制动能量回收效率评价方法,在详细分析这些因素对制动能量回收效率影响的基础上,进一步提出一个综合评价制动能量回收作用的新指标—制动能量回收贡献率。制动能量回收贡献率综合考虑整车参数、循环工况和制动能量回收效率等因素,从而能更全面地评价制动能量回收对提高整车能效的作用,提出的评价方法为电动城市公交车通过制动能量回收技术来进一步改善其整车能量效率指出技术途径。Regenerative braking is one of the key technologies to improve the energy efficiency of electric city bus, but there is no available scientific method to evaluate the effectiveness of regenerative braking for electric city bus. A six-factor contained regenerative braking system efficiency index is introduced based on brake energy flow model of 12 m long electric city bus, a rounded analysis of the influence of aboved six factors on regenerative braking system efficiency is made detailedly. Then a new comprehensive and scientific evaluation index named regenerative braking contribution rate, which takes regenerative braking system efficiency, vehicle parameters and drive cycle into account, is raised to evaluate the effectiveness of regenerative braking system. The evaluation method is helpful to orientate technological approaches to improve the energy efficiency of electric city bus by regenerative braking further.

关 键 词：电动城市公交车 制动能量回收 评价方法 能量效率 行驶工况 

分 类 号：U463[机械工程—车辆工程]