battery model

代码说明：

  本模块对车用动力锂电池的三种主要等效电路模型进行建模和仿真，搭建了相应的仿真模块。(In this module, three main equivalent circuit models of vehicle power lithium battery are modeled and simulated, and the corresponding simulation module is built.)

文件列表：

RCsecond.slx
pngvthree.slx
RCfit.slx