The acceleration or deceleration operation of an intelligent two-wheeled balance scooter is also very simple. It is based on the longitudinal axis of the center of gravity of the driver and the balance scooter itself. When the driver leans forward, the gyroscope perceives the shift in the center of gravity, generating forward force to make the motor produce acceleration to move the vehicle forward. Conversely, when the driver leans backward, the gyroscope also perceives the backward tilt of the center of gravity, and the motor will generate backward force to achieve a balanced effect.