一种纯电动汽车用的剩余里程算法开发

2023年11月21日发(作者：荣威新能源汽车erx5)

10.16638/.1671-7988.2020.07.002

一种纯电动汽车用的剩余里程算法开发

李文杰

（安徽江淮汽车集团股份有限公司 新能源商用车研究所，安徽 合肥 230601）

摘 要：文章剩余里程的指导思想是根据当前用户的使用工况和剩余能量，预测未来一段时间的剩余里程。剩余里

程的开发是基于NEDC工况下展开的，根据当前车辆实时消耗的能量（W）和NEDC工况下标准平均公里能耗相

比较得到和标准工况下的差值S差，从而估算剩余里程。剩余里程估算精度与电动车电池能量状态估算精度、平

均公里能耗、能量效率这三方面强相关。NEDC工况（开空调、无空调）验证结果，剩余里程全程均实现了平缓下

降，无跳变现象，估算误差分别≤5%、≤8%；满足汽车剩余里程估算精度需求。

关键词：剩余里程；能耗；估算精度

中图分类号：U469.7 文献标识码：B 文章编号：1671-7988(2020)07-05-03

Development of a Residual Mileage Algorithm for Pure Electric Vehicles

Li Wenjie

( Anhui Jianghuai Automobile Group Co., Ltd., new energy Commercial Vehicle Research Institute, Anhui Hefei 230601 )

Abstract: The guiding ideology of this paper is to predict the remaining mileage in the future according to the current user\'s

operating conditions and remaining energy. The development of the remaining mileage is based on the NEDC working

condition. According to the comparison between the current vehicle real-time energy consumption (W) and the standard

average kilometer energy consumption under the NEDC working condition, the difference s difference between the current

vehicle real-time energy consumption (W) and the standard average kilometer energy consumption under the NEDC working

condition is obtained, so as to estimate the remaining mileage. The accuracy of residual mileage estimation is closely related

to the accuracy of battery energy state estimation, average kilometer energy consumption and energy efficiency. According to

the verification results of NEDC working conditions (air conditioning on, no air conditioning), the remaining mileage has

achieved a smooth decline, no jump phenomenon, and the estimation errors are ≤ 5% and ≤ 8% respectively, meeting the

estimation accuracy requirements of the vehicle remaining mileage.

Keywords: Remaining mileage; Energy consumption; Estimation accuracy

CLC NO.: U469.7 Document Code: B Article ID: 1671-7988(2020)07-05-03

满状态开始到标准规定的试验结束时所走的里程。但电动车

1 引言

电动汽车的续驶里程是指：电动汽车从动力蓄电池全充

作者简介：李文杰，男，安徽江淮汽车集团股份有限公司新能源商

用车研究所所长，从事新能源汽车产品开发工作10年以上。

实际使用工况复杂、车辆能耗变化大，续驶里程算法的估计

精度有限，里程估计值与实际行驶距离相差很大。这使得乘

客担心现有的电量不能保证车辆到达目的地，产生所谓“里

程焦虑感”，降低电动汽车的使用信心。因此，提高电动汽车

续里程估计的精度是提高电动汽车普及率、促进电动汽车产

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