Power steering system for electrically assisted bicycles riding with toddlers — Experimental implementation and verification

A bicycle riding with toddlers becomes convenient and indispensable transportation for parents in Japan. On the other hand, the bicycle with toddlers tends to be less-stable when start moving, low-speed biking and abrupt steering because it is hard to steer due to increasing the moment of inertia of the handlebars. Hence this study proposes a power steering system for electrically-assisted bicycles riding with a toddler. The power steering system is designed to allow a rider to steer the handlebars with a toddler as if steer the handlebars without him. The power steering system is mounted on a real bicycle, and its effectiveness is verified through experiments.