Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : December 01, 2021 - December 03, 2021
The traction coefficient of wheel and rail in wet condition drops largely compared with that in dry condition, which brings severe risks when the vehicle is driven or braked. Especially for the subject of this research, the light rail vehicle assembled with independently rotating wheels, generally confronts with complex operation environment, so the estimation of wheel-rail traction coefficient in wet condition is important for the efficient and safe operation of light rail vehicle. The estimation of traction coefficient and traction or brake control were generally dealt with separately in the past. However, the knowledge of estimated traction coefficient would play an important role in the control. This research aims at proposing a slip control scheme after the understanding of wheel-rail adhesion characteristics, and using the first full scale railway vehicle assembled with independently rotating wheels with negative tread conicity, the control experiment is presented, validating the effectiveness of the method.
