Testing system of automobile synchronizer based on PLC and computer

Because the synchronizers are the core part of automobile gearbox,it has important significance for the performance of both automobile and automobile gearbox.To evaluate the performance and longevity of automobile synchronizer,a PLC and computer based testing system is developed.The computer is used to complete the task of man-machine interface interaction,analysis and storage related data.The PLC is use to real-time gather data and real-time control,according to orders coming from the computer.The testing system can achieve three types of long-time and high-repeated tests and keep its operation stable and reliable.This paper presents its structure,control system design,application of PLC and control program design.