基于LabVIEW的复合能源电动汽车数据采集系统的设计

摘要

To evaluate the performance of hybrid energy automobile and to optimize the control strategy of hy brid energy management system, a data acquisition system based on LabVIEW is designed, including data ac quisition card, sensors, signal conditioning circuit, main program. This system can achieve the functions of data acquisition, analysis, display and storage of operational parameters of hybrid energy automobile. Furthermore, to improve calculation accuracy of vehicle speed signal, a method of velocity measuring which the sampling fre quency can be adjusted according to the vehicle speed is proposed. At last, the experiment that has taken on the hybrid energy automobile indicates that the system can realize data acquisition exactly.%为了评价复合能源电动汽车的性能以及优化复合能源管理系统的控制策略,设计了一种基于LabVIEW的数据采集系统,主要包括传感器、数据采集卡、信号调理电路、系统主程序.本系统实现了对复合能源电动汽车运行参数的采集、分析、显示和存储.此外,为了提高车速信号的计算精度,提出了一种可以根据车速调整采样频率的测速方法.最后在复合能源电动车上进行了实验,结果表明,系统能够对信号进行准确采集.