| The anti-skid braking controller test system is the main instrument of test and experiment for anti-skid braking controller. Utilizing its accurate simulation of the braked vehicle's movement, it is possible to test the performance of the controller. What is more, it brings higher efficiency and reliability.Firstly, the paper narrated the working principles and constitutes of the anti-skid braking system. According to the function of the anti-skid braking controller, the overall strategy of the testing system was designed with the virtual testing technologies. Secondly, the realization process of the anti-skid braking controller testing system was introduced in details both in hardware and software.The test system consists of the MCU system and PC. The MCU system using the microprocessor 80C196KB as the core disposal chip can simulate the signals, acquire data, actualize serial port communication with the PC by RS232 and display the signals on PC. The bottom software based on WAVE6000 integrated developing environment was programmed by C and assembly language in modularization, which improved the readability, testability and portability. The test software was compiled in LabVIEW, which is developed by National Instruments (NI) and has a good man-machine interface. The description of series of VIS for adjustment and function expandable ability is also given in depth.According to the results of testing, the test system can achieve the designed requirements, satisfy the requests of airplane braking system controller examination, and enhance the test efficiency and reliability. |
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