Research on Hardware-in-Loop Simulation Accuracy Improvement of Adaptive Cruise System
Due to the direct inpact of the precision of the vehicle model on the consistency between the hardware-in-loop simulation results and the test data of adaptive cruise system,a method to calibrate the vehicle model using the real car test data is proposed to improve the simulation accuracy of the adaptive cruise system.Firstly,a simulation system was built based on the architecture of adaptive cruise system.Then,the basic vehicle dynamics mod-el and the inverse longitudinal dynamics model were calibrated step by step according to the real car test data.Finally,the models before and after calibration were used to simulate the acceleration condition,braking condition and car fol-lowing condition,and the simulation results were compared with the actual vehicle test results.The results show that the method of using the real car test data to calibrate the model can significantly improve the consistency between the hardware-in-the-loop simulation and the test data of the adaptive cruise system.
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