A Study on Improvement of Visual Field Stability by Using Active Seat Suspension

Abstract

In recent years, ultra-compact electric vehicles have been marketed by a number of automobile manufacturers. These vehicles are reportedly desirable as they provide independence for elderly people who tend to not go out often and may feel isolated. Therefore, with an aging population, the demand for ultra-compact electric vehicles is expected to increase in the coming years. Despite these advantages, there are many problems to be solved in terms of the safety and comfort of ultra-compact electric vehicles as mobility means for elderly people. Ultra-compact electric vehicles for elderly people require that the vibration be reduced additionally in light of their cognitive function. On the basis of these considerations, the authors suggest an onboard active seat suspension (ASS), which uses a linear motor for a more comfortable ride. This study clarifies the improvement of visual field stability by the ASS on the basis of an evaluation by electrooculogram (EOG), and it shows the possibility of practical vibration control.