맥퍼슨 현가 장치를 가진 차량의 Lower Control Arm Bush 특성과 Steering Wheel PMI 변화에 따른 SRS 개선 연구

This paper aims to explain the effect of elastomeric rear bushing characteristics of lower control arm and steering wheel PMI for improving the Smooth Road Shake (SRS) performance which is one of the most important ride metrics in modern vehicles. Even though the SRS Metric is formed by two driver interfaces: steering hands lateral, SHY, and Floor Pan vibrations caused by tire imbalance forces, this study focuses on the steering wheel lateral vibration since the floor pan longitudinal and vertical vibrations are much smaller than the steering wheel lateral vibration. The results are shown in this paper by objective measurement. Also this paper explains how much LCA rear bush characteristics of lower control arm and steering wheel PMI influences minimizing smooth road shake of steering wheel.