Design of Hydraulic Pulse Test System based on PLC and HMI

摘要

A test and control system for hydraulic pulse test is designed according to the requirement of high temperature pulse endurance test of automotive air conditioning system. The system can control the temperature, pressure and switching frequency. It also has the function of timing detection and fault diagnosis. In this paper, the design process of the test system is introduced in detail from the aspects of the hydraulic system, the software and the hardware of the control system and so on. The system uses the electro hydraulic servo control technology to ensure the accuracy of the test. The friendly man-machine interface makes the operation simple and clear. The test system has been put into use, and the operation process is stable and reliable.