| The fatigue test of automotive component is an integral part of the necessary process in car design and research. in this paper, according to the technical requirements of the nanjing automobile company, I have In-depth study on the electrical control system of reverse fatigue testing machine. as much type the object has, lead to their diversity on the control parameters, such as angle and speed. after detail study, research, analysis on a variety of programs and the special requirements of engineering. I ultimately determine the most appropriate options.Computer software use the VC++ 6.0 to develop a human-computer interface which can give a control order to the object, print and save the collected data in order to enquiry, deal with abnormal situations and so on. Computer hardware mainly complete the design of electrical control system, including motor-controlled, motor-driven, torque signal- acquisition and the design of interface circuit. after complete the all electrical control system, debugging coupled with the overall software.It allows the object working accord to the parameters we setted. and can display its working states real-time, automatically shut down the motor, save data. also it can print waveform anytime, enquiry experimental data and make the appropriate treatment according to the different abnormal situation, monitor the exprement automatically. at present, the system has been put into use, according the results from the test, it reliable, hign precision, easy to operate and good performance. its development is successful, practical, and greatly increasing the degree of automation on the fatigue test. |
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