电动汽车蓄电池内阻脉冲控制检测方法.pdf

第7卷第6期
交通运输工程学报
Vol,, 7 No6
2007年12月
Journal of Traffic and Transportation Engineering
Dec.2007
文章号:1671-1637(2007)06-0036-05
电动汽车蓄电池内阻脉冲控制检测方法
张卫钢,张维峰2,任卫军1,边耀璋
(1,长安大学信息工程学院,陕西西安710064;2,长安大学汽车学院,映西西安710064)
耍:为了利用电池内阻对电动流车电池健康状沉进行判断和续驶里程进行计算,提出了两种
电池内阻在线检洲脉冲控削法。采用光榻和变压器将检测电路和蓄电池离,微控器輸出胨
冲串经过光耦控制蕎电池产生恒定电流信号,读信号在电池内阻上起的电压信号通过变压器回
传给微控制器,微控器根据电流、电压和两者之间的相位差(脉冲控制法一)或者电压的変化量
(脉冲控制法二)计算电池内風。计算結果表明:利用脉冲控制法一和脉冲控制法二计算的12V铅
酸电池内阻的误差分别在13%和11%左右,误差较小,因此,两种脉冲控制法适于电动汽车串联电
池组的在缆内阻检测。
关键词;车辆工程;电动汽车;蓄电池内阻;脉冲检测法
中分类号:U469.72
文献标识码:A
Pulse control measure methods of internal resistance
for battery in electric vehicle
Zhang Wei gang Zhang Wei-feng, Ren Wei-jun, Bian Yao zhang
1. School of Information Engineering, Chang an University, Xian 710064, Shaanxi, China
2. School of Automobile, Chang'an University, Xian 710064, Shaanxi, China)
Abstract: In order to estimate the health state of battery and calculate the running distance of
electric vehicle(EV), two pulse control measure methods were put forward to for the online test
of internal resistance for battery. Measure circuit and battery were insulated by using optica
coupling set and transformer, a series of pluses were put out by microcomputer unit(MCU)
constant current signal was generated by battery controlled by optical coupling set, voltage signal
caused by current signal in the internal resistance was sent to MCU through transformer, and
MCU could calculate the internal resistance according to the phase difference between voltage and
current(method 1) or voltage difference(method 2). Computation result shows that the errors of
internal resistance for a 12V lead acid battery are about 13% and 11% respectively calculated by using
method 1 and method 2, the errors are less, so two pulse control methods are feasible. 8 figs, 10 refs.
Key words: vehicle engineering; electric vehicle; internal resistance of battery; pul
ontro
measure methods
Anthor resume; Zhang Wei gang(1960), male, End, professor, 86-29-82334547, whang(ch edu c
0引言
于电池内阻的大小直接影响电池的驱动能力和剩余
容量,所以,通过检测电池内阻,能够对电池的
电动汽车(EV)是以电池为能源的載运工具,由性能及容量进行评估2,进而了解EV的动力性能
收稿日期:2007-06-19
金项目;国家西部交通建设科技项目(200431881213)陕西省2001重大项目(ZD2001)
作者简介:张卫(1960-),男,河南蒙阳人,长安大学故授,工学博士,从事计算机技术应用研究。