Compatibility between Handling Agility and Stability of Vehicle using Rear Wheel Steering with Dual-Link Actuators 2024-01-2761

The experimental control findings of increasing the handling performance so that the yaw motion of the vehicle is nimble and stable utilizing the upgraded rear wheel steering system equipped with dual-link actuators are shown in this work. In most automobiles, the steering axis is well defined in front suspension. However, unless the vehicle's rear suspension is a sort of double wishbone, the steering axis is not clearly defined in regular multi-link rear suspensions. As a result, most current automobiles have a suspension geometry feature in which the camber and toe angles change at the same time when the assist link is changed to steer the back wheels. To create lateral force from the rear tire while preserving maximum tire grip, the dual-link actuators control for modifying the strokes of suspension links must keep the camber angle constant and adjust only the toe angle. The relationship between the motion of two suspension link actuators and the camber angle/toe angle is found in this study, and the practicality of the control is validated by test vehicle experiments using an advanced rear-wheel steering system.