Real-time adaptive cruise control strategy based on linear variable parameter /H∞ control

For vehicle adaptive cruise control (ACC) system, a real-time adaptive cruise control strategy based on LPV/ H∞ control was proposed. Taking the relative speed of two vehicles as variable parameter, a real-time adaptive cruise longitudinal following model is established. To deal with parameter uncertainty, a linear variable parameter (LPV) H∞ controller is designed by using linear matrix inequality (LMI) method. The proposed strategy covers most of the driving conditions of real vehicles, and the performance of the scheme is verified by simulating real traffic scenarios, and compared with the fixed gain H∞ control method. The results show that this strategy not only has better tracking performance, but also can improve lane utilization and conform to driving habits.