自动变速器控制器的测试台架开发

Test Bench Development of Transmission Control Unit

开发了用于测试自动变速器控制器的硬件在环测试台架。介绍了测试台架的硬件架构和软件架构,设计了应用层软件和负载箱,在Matlab/Simulink下建立了自动变速器的传动模型。以AMT TCU的2挡升3挡工况为例进行了闭环测试试验,结果表明,测试值与实际值误差在设定的范围内,该测试台架可有效地对TCU的硬件和底层软件进行测试。

A bench of hardware in loop （HIL） is developed in order to efficiently test the transmission control unit （TCU）. Hardware and software configuration of the bench are introduced in details in the paper, and application layer software and load box are designed, and a transmission model in Matlab/Simulink is established. Closed loop test is made to the AMT TCU in the case of up-shifting from the second gear to the third gear. The test results show that the gap between the measured value and real value falls in the set range, therefore the testing bench can be used to efficiently test the hardware and basic software in TCU.