The optimization of a Formula SAE vehicle's suspension kinematics

Abstract

The suspension geometry is the foundation of a performance vehicle's design because it dictates the overall packaging constraints and the connection between the chassis and the tires. This thesis details the design process used to produce the suspension geometry for MIT Motorsports' 2018 Formula SAE car and the justification for each design decision made. A thorough iteration process was used to prevent compromises that could significantly detract from specific component performance in order to meet suspension kinematic requirements. Using this process, the kinematic performance of the suspension was maximized by minimizing the roll center's movement and designing the tire camber change characteristics to achieve 0° of outer-wheel camber while at the car's maximum lateral acceleration.