一种车辆状态通用自动监测装置设计与实现

Design and Application of Universal Auto Test Equipment for Parameters of Vehicle Status

摘要:

当前装备车辆底盘数据大都通过仪表盘进行显示,而没有实现对状态数据进行实时采集和存储,造成对车辆的基本技术状态无法进行有效的评估和故障趋势分析；针对这种情况,设计一种对车辆底盘状态运行参数进行采集和记录的装置,通过一个通用的多PIN接口与车辆仪表盘信号线相连,选用LPC1766微控制器进行底盘传感器输出信号的采集,设计了波形采集算法实现对多种典型采集信号参数的计算,通过RS485通讯接口将数据上传至车载终端进行显示、分析和存储；试验结果和应用表明,该系统解决了多种车辆底盘参数的采集记录问题,具有响应灵敏、测量准确等优点,具有广泛的推广应用价值。

Abstract:

The status data of vehicle chassis is expressed through instrument board, which is not sampled and saved. So status estimation and fault prediction is not executed effectively. A kind of auto test equipment (ATE) which samples vehicle status has been designed. The proposed ATE is connected to instrument board through the universal PIN interface. The design chooses LPC1766 microcontroller to collect data from chassis sensors, and it designs sample algorithm to calculate the parameters of representative signals, then sends relevant test data to the on-board PC for display, analysis and storage by RS 485 serial communication. The experiment and application results show that the proposed ATE which can complete sample and storage according to general vehicle chassis has sensitive response and accurate measuring range, and it has a high application value. 