Abstract
This paper describes computer simulation study on performance of lateral guidance system for Dual Mode Truck. A stability limit of vehicle lateral motion is analyzed by using 10 DOF vehicle dynamic model. Relations between steering parameters and stability limit are shown. Experiments with actual Dual Mode Truck is carried out to show the effectiveness of the simulation study. Both the simulation study and experiment show that lateral guidance with large clearance unstable vehicle motion. It is shown that the unstable motion can be suppressed by cutting off the power steering equipment in the guideway.