电动汽车电池的SOC估算和续航里程显示及报警

Estimation for SOC of batteries for EVs and range showing and alerting

在倡导发展新能源汽车的今天,电池管理系统的完善与否是电动汽车发展的一个重要因素,因此对于动力电池的荷电状态的估算成为了关键。在本文中,对现有的估算SOC的方法做了简单分析,并进行整合,提出一套可以实际应用并且计算误差较小的方法,并且通过飞思卡尔单片机得以实现电动车续航里程的显示以及电池低电量的报警系统。

Nowadays, the development of new energy automobiles is well proposed. It becomes an important factor for the development of the EVs that whether the battery management system is completed or not. Therefore, the estimation for SOC of the battery becomes a key. In this article, we simply analyze some existing recon methods, integrate them and come up with a practical method which contains less error. We use it to realize the showing of the distance per charge and alarming when the electric quantity is low through the Freescale single chip.