Abstract
Even when people is boarding, the parallel two-wheel vehicle with lower gravity center of vehicle body has pendulum structure. That is, the gravity center position of this vehicle including the passenger is installed lower than the wheel axle. However, when the passenger's gravity center position is high and weight is heavy, this vehicle has inverted pendulum structure. That is, gravity center position of this vehicle including the passenger is installed higher than the wheel axle. Therefore, in order for this vehicle including the passenger to always have pendulum structure, the passenger's height and weight must be restricted. In this paper, when passenger is boarding, the vehicle's conditions for this vehicle to have pendulum structure are proposed based on the behavioral model and experimental result of this vehicle.
