Abstract
Keywords:
Steering Control, Electric Power Steering, Active Front Steering, Electronic Stability Program
Abstract
We have developed an active front steering system with a planetary gear train, which can vary the steering gear ratio according to vehicle speed and improve vehicle stability by superimposing steering angle. We conducted vehicle tests showing that co-operated control of AFS with ESP can improve vehicle stability by direct control of tire slip angle and that steering reaction torque during AFS intervention can be compensated by torque compensation using electric power steering.