基于FPGA和BMS的数据采集系统研究与应用

Research and application of data acquisition system based on FPGA and BMS

为解决动力电池评估参数数据采集的实时性、准确性问题,提出了基于FPGA和USB2.0的电池管理系统数据采集方案。系统采用FPGA作为主控制器控制A/D转换和USB传输,并完成USB固件程序、USB设备驱动程序开发。测试结果表明该系统具有速度快、即插即用、易于扩展等特点,提高了数据采集的速度和精度,有利于电池管理系统对电池状态进行实时可靠的评估。

In order to solve the problem of real-time and accuracy for collecting the traction battery evaluation parameters,including battery voltage,battery current and battery temperature,the data acquisition system solution based on field programmable gate array（FPGA） and universal serial bus protocol（USB2.0） was designed.In this system,FPGA was used as the microcontroller to control analog to digital（A/D） conversion and USB transmission.Moreover,USB firmware and driver program were explored and achieved.The validation experimental results show that the designed system is high credible.It also shows that the accuracy and speed of data sampling are improved.It is great benefit to evaluate the battery status in battery management system.