Research on Performance Test Platform of Automobile Mechanical Transmission Based on Bus Technology

In order to improve the quality and performance of performance test platform for automobile mechanical transmission, the bus technology is applied in this paper. The system establishes a full-featured data acquisition hardware platform through the reasonable selection of sensors and data acquisition card. The software system is based on mixed of VC++ and MATLAB, including five modules: parameter setting, signal acquisition, signal analysis, quality testing and database. It achieves a synchronous acquisition of vibration signal and speed signal, while achieves online real-time analysis of vibration signal and speed signal taking advantage of the processing speed of MATLAB. From the experiment result and data analysis, the proposed method can improve the performance of performance test platform for automobile mechanical transmission substantially.