Simulation on automatic leveling system using PID control algorithm

To improve the leveling precision and response speed for automatic leveling system of telescopic handler,an electro-hydraulic proportional control method is first proposed via an incremental PID algorithm.Meanwhile,the control model,together with simulinkTMsimulation model,is established.By using the simulation results with and without PID control algorithm,relevant characteristics of step responses and open-loop Bode charts are then analyzed and compared.Finally,the feasibility and effect on automatic leveling system of handler is validated in terms of PID control algorithm.