【作者】 李春芾； 陈慧岩； 李艳琴； 郑广军；

【Author】 Li Chunfu~(1,2) Chen Huiyan~1 Li Yanqin~2 Zheng Guangjun~2 (1 School of Mechanical and Vehicle,Beijing Institute of Technology;2 Inner Mongolia communications polytechnic)

【机构】 北京理工大学机械与车辆学院； 内蒙古交通职业技术学院；

【摘要】 设计了基于虚拟仪器的汽车自动变速器试验测试系统,采集的数据包括多路油压信号、多路电磁阀占空比信号、以及自动变速器和发动机控制单元发出的CAN信号,由于信号众多,因此采用了多个数据采集卡,主要解决了多数据采集卡的采样同步性、多路电磁阀占空比的测量方法、PWM信号调理电路设计、测试软件设计等问题,所设计的测试系统已应用到实车试验,能很好的满足试验要求。更多还原

【Abstract】 Designed vehicle automatic transmission test data acquisition system based on Virtual Instruments,the collection data including multi-channel oil pressure signal,multi-channel duty ratio signal and CAN massage issued from electronic control unit of engine and automatic transmission.Used several data acquisition cards because have so many signals,Resolved acquisition synchronization of several data acquisition cards, measurement method of multi-channel duty ratio,PWM signal conditioning circuit and software design etc.The test system has been applied to the actual test,and meet the test requirements well.更多还原