Develpoment Of AMT Tuning Parameters And Fault Diagnosis System

Now the software system of the automatic transmission parameters testing is research and development by the manufacturers. The main reasons causing the status of various models of different parameters testing , setting up of software be changed a lot. This would not have standard software to make different models for debugging. So urgently need a variety of model parameters testing systemIn this paper, the software of parameters testing system can achieve testing various models, fault diagnosis, with simple operation, flexibility well, compatibility high characteristic, the research of debugging later provided convenience.Topics include the whole system design, hardware design, software design and the real car debugging four parts. It firstly analyzes theoretically tuning parameters and the principle of fault diagnosis system. Proposed to the variable speed trunk 10 important parameter setting and the corresponding transmission fault diagnosis method.The hardware which is designed using ARM7 LPC2132 as the core processing chips includes signal sampling circuit, filter circuit, the frequency measurement circuit, communications circuit and so on. The 10-bit A/D, UART, Timer Counter, I2C and other functional modules integrated in LPC2132 are fully used to improve the circuit integration.The software program design mainly achieves 12864 LCD interface and for the realization of the function of various commissioning diagnosis. Including the automatic transmission of initial parameters Settings, parameter modification, storage and transmission, and automatic transmission fault analysis, judgement, display, etc.System after the real car commissioning and operation, the basic function of achieving the desired, realized the related functions. AMT tuning parameters and fault diagnosis system, achieved the automatic transmission parameters testing and detection the related of automatic transmission. The scheme reasonable, advanced. to maintenance personnel has higher significance and importan application value...