汽车工程

汽车工程 ›› 2018, Vol. 40 ›› Issue (12): 1377-1384.doi: 10.19562/j.chinasae.qcgc.2018.012.001

• •    下一篇

电动公交客车增程器开关控制策略和等效能耗最小化策略优化*

徐宁, 楼狄明, 谭丕强, 胡志远   

  1. 同济大学汽车学院,上海 201804
  • 收稿日期:2017-11-13 出版日期:2018-12-25 发布日期:2018-12-25
  • 通讯作者: 徐宁,博士,E-mail:xuningtjauto@163.com
  • 基金资助:
    国家科技支撑计划(2014BAG06B01)资助

Optimization of On/Off Control Strategy and ECMS Strategy for the Range-extender of Electric Urban Bus

Xu Ning, Lou Diming, Tan Piqiang, Hu Zhiyuan   

  1. School of Automotive Studies, Tongji University, Shanghai 201804
  • Received:2017-11-13 Online:2018-12-25 Published:2018-12-25

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摘要： 本文中旨在解决增程式电动公交客车单点恒温器能量管理策略下电量维持阶段油耗较高和锂电池组循环充放电深度较大等问题。首先对增程器开关控制策略和等效燃油消耗最小化策略(ECMS)进行优化和仿真验证,然后在增程式电动公交客车半实物仿真平台上进行了试验验证。结果表明:电量维持阶段,优化增程器开关控制策略后,增程式电动公交客车百公里油耗由原来的39.1降至36.23L,锂电池组循环充电系数由19.8/100km降至13.2/100km,分别降低了7.3%和33.3%,但增程器的起停次数有所增加。进一步采用优化的ECMS能量管理策略后,增程式电动公交客车百公里油耗再降至35.22L,锂电池组循环充电系数进一步降至9.9/100km,比原单点恒温器控制策略分别降低了9.9%和50%。

关键词: 增程器, 开关控制策略, 等效能耗最小化策略, 锂电池组循环寿命, 油耗

Abstract: This paper aims to solve the problem of high fuel consumption and large charge/discharge depth of lithium battery in charge sustain stage for the range-extended electric bus with single point on/off energy management strategy. Firstly the single-point on/off strategy and the equivalent fuel consumption minimum strategy (ECMS) are optimized and verified by simulation. Then a verification test is carried out on a semi-physical platform. The results show that in charge sustain stage, after single-point on/off strategy is optimized, the fuel consumption per 100km reduces from original 39.1L to 36.23L and the cycle charging factor of lithium battery reduces from 19.8/100km to 13.2/100km, decreasing by 7.3% and 33.3% respectively; and with optimized ECMS, the fuel consumption per 100km reduces again to 35.22L and cycle charging factor further reduces to 9.9/100km, lowering by 9.9% and 50% respectively compared with the original single point on/off strategy

Key words: range-extender, on/off control strategy, ECMS, lithium battery cycle life, fuel consumption