二輪車における二輪操舵について : 二輪操舵の動物性の基礎的考察

概要

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This report is a presentation of the results of an analysis of the dynamic characteristics of the two-wheel-steered vehicle and suggests the improvement of the characteristics. The analysis employs MCSP, which is a personal computer program using BASIC as its language. From a theoretical analysis, the characteristics of the two-wheele-steered vehicle are derived: the analysis reveals the relationship between the vehicle speed and the steering characteristics: over, under, and neutral steering. This report also discusses an analysis of the vehicle's behaviour when the rear wheel is simultaneously steered in the same direction, or the opposite direction, as the front wheel. Specifically, in the two-wheeled vehicle, the camber angle is an important factor, particularly while cornering. The camber thrust force of two-wheeled vehicles, which insures cornering safety in the two-wheeled vehicle, is approximately equal in its effects to the cornering force of four-wheeled vehicles. Moreover, in the two wheeled vehicle, the camber thrust force has more influence on the vehicle's dynamic characteristics than the cornering force because, when cornering, the inclination of the vehicle generates a camber thrust force which is stronger than the vehicle's cornering force.
1989-01-31