Abstract
Recently, there have been many reports about development of Human Machine Interface (HMI) which used a visual or auditory display to improve driver assist. For motorcycles, it is suitable to use a haptic display for rider assist, since there are many disturbances in open-air situation such as sunshine and surrounding noise. Therefore we developed the test motorcycle equipped with the throttle grip that had a function of haptic display. As the result of riding tests, it became clear that this system was able to offer the information of surplus driving force warning and to support throttle grip operation.
