摘 要：再生制动系统是提升纯电动城市客车能量利用效率的关键技术之一。本文基于CHTC-B标准工况，选取一款纯电动城市客车作为测试对象，采用底盘测功机、功率分析仪与整车环境舱等设备，系统测试并分析了其再生制动能量回馈率与回收率。研究结果表明：样车的平均再生制动能量回馈率为58.97%,处于行业中等水平；而其再生制动能量回收率达到64.51%,显著高于行业平均值。进一步分析发现，能量回馈率偏低主要受电池SOC状态限制，而能量回收率则更能准确反映再生制动系统对整车能耗的实际改善效果。本研究不仅量化评估了再生制动系统的性能，还揭示了回馈率与回收率之间的差异及影响因素，为新能源汽车再生制动系统的优化设计与性能评价提供了重要参考。
关键词：纯电动城市客车；再生制动系统；能量回收率；检测
中图分类号：U469.72；U463.23 文献标志码：A DOI：10.15917/j.cnki.1006-3331.2025.06.008
Measuring and Exploring the Energy Recovery Effect of Regenerative Braking System of a Pure Electric City Bus
HE Shengjun,HUANG Yishan,CHEN Yingying,CHEN Xiqing,PEI Xiaohuan,TAN Wei
Abstract: The regenerative braking system is one of the key technologies for improving the energy utilization efficiency of pure electric city buses.Based on the CHTC-B standard cycle,this research selects a pure electric city bus as the test vehicle,uses equipment such as a chassis dynamo meter,a power analyzer,and an environmental chamber to systematically test and analyze the regenerative braking energy feedback rate and recovery rate.The results show that the average regenerative braking energy feedback rate for the test vehicle is 58.97%,which is at a medium level of the industry.Its regenerative braking energy recovery rate reaches 64.51%,significantly higher than the industry average.Further analysis reveals that the relatively low energy feedback rate is mainly constrained by the battery SOC.Whereas the energy recovery rate more accurately reflects the actual improvement effect of the regenerative braking system on the vehicle's energy consumption.This research not only quantitatively evaluates the performance of the regenerative braking system but also reveals the differences and influencing factors between the feedback rate and recovery rate,providing important references for the design optimization and performance evaluation of regenerative braking systems in new energy vehicles.
Key words: pure electric city bus; regenerative braking system; energy recovery rate;detection
