Many types of driving assistance systems have been developed in recent years. To achieve using continuous support for the drivers, haptic feedback has been proposed for more accurate driving, and it has some advantage compared to visual or auditory assists. This paper deals with an experiment of velocity adaptive haptic guidance steering system and effectiveness of proposed system is discussed by comparing with normal driving and constant gain haptic guidance. The driving experiment under 3 conditions is carried out: Normal, constant gain haptic guidance (Haptic C), and velocity adaptive haptic guidance. As a result, driving with Haptic A showed less lateral deviation in 80% of subjects.
