基于ARM7的变速箱测控检测系统设计

针对目前常用的汽车变速箱试验台能量消耗严重、力矩控制不方便的缺陷,采用ARM7系列的32位微处理器LPC2138,提出了一种＂交流发电、直流能量反馈＂的封闭式变速器加载试验台方案,当微机监控操作界面给定测试转速和转矩时,转矩传感器产生转矩反馈信号并与给定信号相比较,自动控制实验台调整以满足给定数据,转矩采用转矩外环和电流内环的双环控制.介绍了硬件系统的设计、软件平台的搭建.该系统为变速箱试验台提出了一种具有能量传输环节少、环路效率高、能量利用系数高、初投资少、占地面积小等优点的方案.

Transmissions Control Based on ARM7 Detection System

Considering the serious energy consumption caused by the defects of car gearbox test rig and the inconvenient torque control,a new closed transmission load test program which uses microprocessor LPC2138 ARM7 family of 32 and belongs AC power and DC power feedback is proposed.When the computer monitoring interface gives the speed and torque,the torque sensor generates a torque feedback signal and compares it with the given signal.Then the automatic control test bench adjusts to meet the given data and the to...