Steering Dynamics of Tilting Narrow Track Vehicle with Passive Front Wheel Design

13th International Conference on Motion and Vibration Control; 12th International Conference on Recent Advances in Structural Dynamics

Tan, Jeffrey Too Chuan^1 ; Arakawa, Hiroki^1 ; Suda, Yoshihiro^1

Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo

153-8505, Japan^1

关键词: Design parameters;    External disturbances;    Multibody dynamics simulations;    Simulation studies;    Steering dynamics;    Steering method;    Steering stabilities;    Urban transportation systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/744/1/012218/pdf
DOI  :  10.1088/1742-6596/744/1/012218

来源: IOP

【 摘 要 】

In recent years, narrow track vehicle has been emerged as a potential candidate for the next generation of urban transportation system, which is greener and space effective. Vehicle body tilting has been a symbolic characteristic of such vehicle, with the purpose to maintain its stability with the narrow track body. However, the coordination between active steering and vehicle tilting requires considerable driving skill in order to achieve effective stability. In this work, we propose an alternative steering method with a passive front wheel that mechanically follows the vehicle body tilting. The objective of this paper is to investigate the steering dynamics of the vehicle under various design parameters of the passive front wheel. Modeling of a three-wheel tilting narrow track vehicle and multibody dynamics simulations were conducted to study the effects of two important front wheel design parameters, i.e. caster angle and trail toward the vehicle steering dynamics in steering response time, turning radius, steering stability and resiliency towards external disturbance. From the results of the simulation studies, we have verified the relationships of these two front wheel design parameters toward the vehicle steering dynamics.