SmartSim: Combination of Vibro-Vestibular Wheelchair and Curved Pedestal of Self-Gravitational Acceleration for Road Property and Motion Feedback

We developed a vehicle ride simulation system for immersive virtual reality, consisting of a wheelchair for vibration and vestibular sensation, and a pedestal with a curved surface for the wheelchair to run on, utilizing a gravitational component. Vehicle motion feedback systems often use a six degrees of freedom motion platform to induce virtual vehicle acceleration on the user’s body. However, because motion platforms are typically complex and expensive, their use is limited to relatively large-scale systems. The proposed system enables the presentation of variety of road property sensations as well as continuous acceleration of vehicle motion using high-bandwidth wheel torque produced by two direct-current motors. Our unique combination of a wheel and a pedestal can present vibration and vestibular sensations of vehicle acceleration with simple, light-weight, and low-cost equipment. In our demonstration experience, users can perceive the sensation of various road properties, such as uneven surfaces, and continuous acceleration of a car or roller coaster.