ソーラーカーにおけるサスペンション剛性が操縦安定性に及ぼす影響

抄録

In recent years, the automobile industry has been required to reduce the weight of vehicles due to environmental issues. While reducing the weight of the vehicle has advantages such as improved fuel efficiency, it has an effect on driving performance due to a decrease in rigidity. In this study, vehicle dynamics analysis was performed for a solar car by changing the suspension stiffness. From the analysis results, the relationship between suspension stiffness and steering stability was evaluated using the stability factor, an index of steering stability. As a result, it was found that the steering stability was greatly affected not only by the stiffness of the entire suspension but also by the stiffness ratio of the components. Therefore, we aim to evaluate the suspension stiffness and steering stability so as not to be affected by the suspension geometry by examining the differences between the vehicle running test, analysis and theoretical formula.