Study on Continuous Friction Characteristic between Tire and Road
-Measurement and Evaluation of μ-s Characteristics of Ordinary Roads in Snowy Conditions-

Ichiro Kageyama (Consortium on Advanced Road Friction Database / Nihon University)･Atsushi Watanabe･Yukiyo Kuriyagawa (Nihon University)･Tetsunori Haraguchi (Consortium on Advanced Road Friction Database / Nihon University)･Tetsuya Kaneko (Osaka Sangyo University)･Minoru Nishio (Absolute)

The μ-s characteristics of snow conditions on ordinary roads pose a major problem in terms of road traffic safety. Therefore, in this study, based on the results of the friction characteristics covered by snowy and icy roads at proving grounds, we evaluated the measurement results on ordinary roads in snowy conditions and verified the outline of the characteristics fluctuations.

Study on Continuous Friction Characteristic between Tire and Road
-Relationship between Environmental Data and Road Friction Characteristics-

Atsushi Watanabe･Yukiyo Kuriyagawa (Nihon University)･Ichiro Kageyama･Tetsunori Haraguchi (Nihon University / Consortium on Advanced Road-Friction Database)･Tetsuya Kaneko (Osaka Sangyo University)･Minoru Nishio (Absolute)

In a previous study, we reported a method for estimating the friction characteristics on snowy and icy roads using a friction measurement device between the tire and road. In this study, we examined a method for estimating these estimated friction characteristics using multiple environmental data, such as road surface images, that reflect the friction characteristics. In this study, as an initial stage of research, we compare and discuss the relationship between environmental data and friction characteristics on test roads, such as dry, compacted ice, and icy roads.

Analysis of the Influence of Aerodynamic Forces on the Stability of Weave Mode of Motorcycles
-Calculations using Recent Vehicle Specifications-

Takahiko Yoshino･Reiya Haraoka (KURUME INSTITUTE OF TECHNOLOGY)･Motohito Ueki･Noboru Yabe (Yamaha Motor)･Tsuyoshi Katayama (KURUME INSTITUTE OF TECHNOLOGY)

To analyze the effect of aerodynamic characteristics on weave mode stability using recent vehicle specifications. To analyze the effect of aerodynamic coefficient changes on the stability of the weave mode and to study the main mechanisms.

Motorcycle Position Measurement using Opposing Omnidirectional Cameras

Junji Hirasawa (National Institute of Technology (KOSEN), Ibaraki College)

The author proposes a non-contact position measurement method using omnidirectional cameras. This method involves installing two omnidirectional cameras oriented vertically opposite to each other to measure the position in the vertical direction. Furthermore, the author discusses a method to reduce horizontal errors occurring in the camera baseline direction using this height information.