Fuzzy-PID Control in the Application of Multi-purpose Vehicles of the Road Snow Plowing

This paper studied a multifunctional snow removal trucks electro-hydraulic proportional valve control system for the cylinder position control. The fuzzy - intelligent PID controller which could improve the operational efficiency of a multifunctional snow removal trucks, compared with conventional PID control, fuzzy control, and other control strategies by demonstration, simulation analysis and pilot studies. It could make up for some system instability which was caused by the conventional PID control, and gave full play of the PID control with the simple, robust, and high reliability advantages applied to the fuzzy control system, fully manifested the double advantage of the fuzzy control and PID control. This paper will represent an advanced Fuzzy - Intelligent PID controller which was applied in snow removal truck´s hydraulic system by PID control and the intelligent combination of fuzzy control. The simulation experiments prove its feasibility.