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Car crash simulation test bench design, development and testing of an auxiliary device , able to simulate the real collision of car 's acceleration change , mainly used in car seats, seat belts, airbags, bumpers and other parts of the developed and the performance test , has convenient, with good reproducibility , low cost experiments . In accordance with the the different the trolley acceleration curve generation principle , the test divided into braking style and launch two . This article hydraulic launch car crash simulation test-bed for the study, using computer simulation , simulation test bed process , so that the the response acceleration curve of the trolley is able to reproduce the desired output given . In the course of the study of the subject , as a platform to MATLAB / SIMULINK software to calculate the main parameters of the hydraulic components , to establish the model of the test rig , preliminary simulation , so that the actual response and the desired output is roughly the same trolley ; actual response and expectations in order to reduce the error between the output and improve the approximation of both test-bed system parameters as well as non-parametric model identification , to obtain the mathematical model of the test rig , in preparation for the following iterative method for error compensation ; definition of the iterative error to the weighted error to control the number of iterations , to compensate for the output error , the ideal output , and seek to achieve this goal drive signal ; Finally, taking into account the influence of experimental uncertainties and various disturbances , these factors as variables are added to the test bench simulation model to verify the applicability and effectiveness of the iterative algorithm .
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