电控机械式自动变速器在线故障诊断系统的开发

Development of On-line Fault Diagnostic System for Automated Mechanical Transmission

根据电控机械式自动变速器系统的特点,采用基于模型的设计方法,在MATLAB/SIMULINK软件环境下,运用Stateflow逻辑系统建模工具建立了AMT系统的在线故障诊断模型,从而有效地对AMT系统中的传感器、执行机构和TCU硬件的主要故障进行在线诊断。大量试验表明,该设计方法是行之有效的且非常实用。

According to the characteristics of automated mechanical transmission （ AM T ） control system, an on-line fault diag- nostics model about AMT is built in Matlab/Simulink software environment based on modeling design method of Stateflow logic system, and it can check the main faults of sensors, actuators and TCU hardware effectively in AMT system. Number of experiment shows that the design method is effective and very practical.