基于电池循环寿命的纯电动汽车续驶里程估算
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摘要
为了提高纯电动汽车的续驶里程估算精度,降低因电动汽车续驶里程估计不准确而出现的"里程焦虑",提出一种基于电池循环寿命的纯电动汽车续驶里程估算方法。首先,以纯电动汽车的整体性能分析为基础,将汽车续驶里程估算中电池循环使用时长问题,通过卡尔曼滤波算法转化为代价函数逼近最小值问题,确定电池循环使用寿命。其次,通过计算电池组剩余能量和已行驶里程,计算出纯电动汽车单位里程能耗;最后,计算出纯电动汽车循环工况续驶里程。实验结果表明,采用该方法对纯电动汽车续驶里程进行估算准确性较高,估算误差最低为2. 5%,提高了对纯电动汽车续驶里程的估算精度。
In order to improve the accuracy of pure electric vehicle mileage estimation,reduce the "mileage anxiety"caused by the inaccurate estimation of electric vehicle mileage,based on the overall performance analysis of pure electric vehicles,a method for estimating the battery cycle life of pure electric vehicles was proposed. Firstly,the problem of battery cycle life in the estimation of vehicle cycle life was transformed into the problem of approximating the minimum value of cost function by Kalman filter algorithm,and the battery cycle life was determined. Secondly,calculating the remaining energy of battery pack and driving mileage,the unit mileage energy consumption of pure electric vehicle is calculated. Finally,the driving mileage of pure electric vehicle under cycle condition was calculated. The validation results show that the method has a high accuracy in estimating the driving mileage of pure electric vehicles,and the minimum error is 2. 5%. The accuracy of estimating the driving mileage of pure electric vehicles is improved.
In order to improve the accuracy of pure electric vehicle mileage estimation,reduce the "mileage anxiety"caused by the inaccurate estimation of electric vehicle mileage,based on the overall performance analysis of pure electric vehicles,a method for estimating the battery cycle life of pure electric vehicles was proposed. Firstly,the problem of battery cycle life in the estimation of vehicle cycle life was transformed into the problem of approximating the minimum value of cost function by Kalman filter algorithm,and the battery cycle life was determined. Secondly,calculating the remaining energy of battery pack and driving mileage,the unit mileage energy consumption of pure electric vehicle is calculated. Finally,the driving mileage of pure electric vehicle under cycle condition was calculated. The validation results show that the method has a high accuracy in estimating the driving mileage of pure electric vehicles,and the minimum error is 2. 5%. The accuracy of estimating the driving mileage of pure electric vehicles is improved.
引文
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13李兴虎.基于最低极限能耗的纯电动汽车能耗指标评价方法[J].汽车安全与节能学报,2017,8(4):78-81Li Xinghu.Evaluation method of energy consumption index of pure electric vehicle based on minimum limit energy consumption[J].Journal of Automotive Safety and Engergy,2017,8(4):78-81
14 Fetene G M,Kaplan S,Mabit S L,et al.Harnessing big data for estimating the energy consumption and driving range of electric vehicles[J].Transportation Research Part D Transport&Environment,2017,54:1-11
2武哲,高松,李军伟,等.纯电动汽车时间触发总通讯协议网络消息调度策略研究[J].科学技术与工程,2017,17(9):284-290Wu Zhe,Gao Song,Li Junwei,et al.Research and validation of TTCAN scheduling policy for EV[J].Science Technology and Engineering,2017,17(9):284-290
3陈燎,谢明维,盘朝奉.模糊能耗及卡尔曼滤波的电动汽车剩余续驶里程估算[J].河南科技大学学报(自然科学版),2017,38(1):28-33Chen Liao,Xie Mingwei,Pan Chaofeng.Estimation of residual driving range of electric vehicle based on fuzzy energy consumption and Kalman filter[J].Journal of Henan University of Science&Technology(Natural Science),2017,38(1):28-33
4连静,郑宁安,周雅夫,等.基于电池荷电状态和行驶工况辨识的电动汽车续驶里程估算[J].科学技术与工程,2016,16(13):113-117Lian Jing,Zheng Ning'an,Zhou Yafu,et al.Driving range estimation for electric vehicles based on battery SOC and driving cycle identification[J].Science Technology and Engineering,2016,16(13):113-117
5 Pan C,Dai W,Chen L,et al.Driving range estimation for electric vehicles based on driving condition identification and forecast[J].Aip Advances,2017,7(10):205-207
6杨杨,陈磊,贺子龙,等.一种电动汽车续驶里程测量替代方法的研究[J].汽车零部件,2016,21(12):41-43Yang Yang,Chen Lei,He Zilong,et al.Study on a substitutive method of electric vehicle driving range test[J].Automobile Parts,2016,21(12):41-43
7张亚.电动汽车能耗和续驶里程试验方法新变化解析[J].汽车工程师,2018,25(4):115-120Zhang Ya.Analysis on electric vehicle energy consumption and cruising range test procedures[J].Auto Engineer,2018,25(4):115-120
8林仕立,宋文吉,吕杰,等.基于电池SOE预测电动汽车的续驶里程[J].电池,2017,47(3):213-215Lin Shili,Song Wenji,LüJie,et al.Forecasting the driving range of electric vehicle based on the SOE of battery[J].Battery Bimonthly,2017,47(3):213-215
9任山,张明君,王仁广.纯电动汽车电能消耗和续驶里程测试标准对比分析[J].汽车零部件,2017,32(6):84-86Ren Shan,Zhang Mingjun,Wang Renguang.Analysis on standards for electric energy consumption and range test[J].Automobile Parts,2017,32(6):84-86
10 Jafari M,Gauchia A,Zhao S,et al.Electric vehicle battery cycle aging evaluation in real-world daily driving and vehicle-to-grid services[J].IEEE Transactions on Transportation Electrification,2017(99):1-3
11潘盛辉,许平,宋仲达,等.基于改进NSGA-Ⅱ算法的纯电动汽车机电复合制动控制策略研究[J].现代电子技术,2018,46(7):97-101Pan Shenghui,Xu Ping,Song Zhongda,et al.Research on modified NSGA-Ⅱalgorithm based electro-mechanical hybrid braking control strategy of electric vehicle[J].Modern Electronics Technique,2018,46(7):97-101
12于建华.防爆动力电池对纯电动防爆车辆续驶里程的影响分析[J].煤矿安全,2018,49(6):112-114Yu Jianhua.Influence analysis of explosion-proof power battery on driving range of pure electric explosion-proof vehicle[J].Safety in Coal Mines,2018,49(6):112-114
13李兴虎.基于最低极限能耗的纯电动汽车能耗指标评价方法[J].汽车安全与节能学报,2017,8(4):78-81Li Xinghu.Evaluation method of energy consumption index of pure electric vehicle based on minimum limit energy consumption[J].Journal of Automotive Safety and Engergy,2017,8(4):78-81
14 Fetene G M,Kaplan S,Mabit S L,et al.Harnessing big data for estimating the energy consumption and driving range of electric vehicles[J].Transportation Research Part D Transport&Environment,2017,54:1-11