Rider control behavior to maintain stable upright position at low speed

摘要

To maintain the stability of a motorcycle in straight-ahead running, the rider steers the handlebar with his/her hands and leans his/her body to right and left on the seat at a time delay (time lag) to the motion (banking) of the motorcycle's frame, and the motorcycle is moved laterally and yawed. In this report, we studied the stable regions of the time delay at the rider's lean to the motorcycle banking in hand-free running at low speed by the equations of motion in which the characteristics of tire, the movement of the center of rider to right and left and motion of the steering system about the steering axis are included.