Abstract
Theoretical and experimental evaluations have been carried out for the straight-line stability during high-speed in motorcycles for many years, and have been also applied to actual development. On the other hand, stability is lost when traveling at extremely low speed, and method of maintaining the stability has also been studied in recent years. In addition, research on two-wheeled vehicles realizing the standing stability control by mounting a large-sized gyroscope has been performed. Here, we report the result of improvement of stability at extremely low speed and standing stability control not by adopting mechanical gyroscope but by adding flexibility to the structure of the body.
