| 基于容量修正的安时积分SOC估算方法研究 |
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| 引用本文： | 罗勇,祁朋伟,黄欢,王佳男,王毅,李沛然.基于容量修正的安时积分SOC估算方法研究[J].汽车工程,2020,42(5):681-687. |
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| 作者姓名： | 罗勇 祁朋伟 黄欢 王佳男 王毅 李沛然 |
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| 作者单位： | 重庆理工大学,汽车零部件先进制造技术教育部重点实验室,重庆 400054;中国汽车工程研究院股份有限公司,汽车噪声振动和安全技术国家重点实验室,重庆 400054;重庆青山工业有限责任公司技术中心,重庆 400054;重庆理工大学,汽车零部件先进制造技术教育部重点实验室,重庆 400054;重庆青山工业有限责任公司技术中心,重庆 400054;中国汽车工程研究院股份有限公司,汽车噪声振动和安全技术国家重点实验室,重庆 400054 |
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| 基金项目： | 国家自然科学基金(51305475);汽车噪声振动和安全技术国家重点实验室2017年度开放基金(NVHSKL-201702);重庆市教委科学技术研究项目(KJQN201801143);重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0308);重庆理工大学车辆学院科研支撑项目(CL2019-16)资助。 |
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| 摘 要： | 针对传统安时积分SOC估算法将电池容量视为定值而带来的误差,提出了带容量修正的安时积分法,它通过开路电压法确定电池组SOC初始值,再由电池组充放电试验得到不同倍率、库伦效率、温度等对电池容量的修正因子。仿真与试验结果表明,经改进的安时积分法可有效消除各种误差,估算结果精度较高,可用于SOC的实时估算或作为评价其它SOC估算策略的基准。
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| 关 键 词： | 电池管理系统 SOC估算 安时积分法 充放电试验 |
Study on Battery SOC Estimation by Ampere-hourIntegral Method with Capacity Correction |
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| Luo Yong,Qi Pengwei,Huang Huan,Wang Jianan,Wang Yi,Li Peiran.Study on Battery SOC Estimation by Ampere-hourIntegral Method with Capacity Correction[J].Automotive Engineering,2020,42(5):681-687. |
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| Authors: | Luo Yong Qi Pengwei Huang Huan Wang Jianan Wang Yi Li Peiran |
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| Institution: | (Chongqing University of Technology, Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Chongqing 400054;China Automotive Engineering Research Institute Co., Ltd., State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing 400054;Department of Technology, Chongqing Tsingshan Industrial Co., Ltd., Chongqing 400054) |
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| Abstract: | In view of the error caused by that the SOC estimation algorithm based on traditional ampere-hour integral method regards battery capacity as constant,a modified ampere-hour integral method with capacity correction is proposed,in which the initial SOC value of battery is determined by open circuit voltage and then corrected by correction factors related to charge/discharge current,coulombic efficiency and temperature,obtained by the charge and discharge tests of battery pack.The results of simulation and tests show that the modified ampere-hour integral method can effectively eliminate various errors and get more accurate estimation results,so it can be used in real time estimation of SOC or as a reference for the evaluation of other SOC estimation strategies. |
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| Keywords: | battery management system SOC estimation ampere-hour integral method charge/discharge test |
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