Abstract
Vehicle steerablity is decided based on vehicle information and driver's sense of driving operation. In this study, we acquired driver's drive motion and electromyography(EMG) while driving a simulator. Muscular activity reacts with the command from brain and EMG highly responds it. So we assume that EMG derives from driving operation. Our goal is to propose a way of driving with less muscular activity, because the continuing the muscle tone leads to physical fatigue. Therefore, to prove the relation of steerability and EMG, we analyzed surface EMG when driving at different speed and steering angle. We measured EMG(Biceps brachii and brachioradial muscle) of both arm while driving a same course in different speed(40, 80, and 120 km/h) on a simulator. Subjects were 5 male. After taking informed consent, they wore electrode and conducted the experiment. We found out that there was a difference in the muscle movement by a curve, and the faster the speed was, the larger the amplitude of EMG became. We consider that the muscle contraction occurred due to tension of driver's need of steering at high speed during the curve. From the results, we showed relation of driving speed and EMG.
