The simulation and analysis of PID structure generalized predictive control algorithm

In order to make intelligent vehicle turn smoothly, this paper puts up forward PID structure generalized predictive control algorithm. Combining the similarities between PID control and generalized predictive control law, this algorithm has changed the objective function of generalized predicative control, effectively combined PID control and generalized predicative control and has drawn support from recurrence relation in generalized predicative control algorithm. Finally, it automatically adjusts and optimizes PID parameter[5-7]. This paper has made an analysis on MATLAB simulation example in intelligent vehicle steering engine closed loop control system. The simulation results show that steering engine can make the best of current path information collected by path detection sensor and then make a turn response. In addition, the steering engine can predicate and estimate steering control information in the next moment. Even under the condition of interference signals, it can realize its smooth bending in different path information, thus realize the real-time trajectory tracking on estimated output with a given input signal.