关键词: 新型麦弗逊悬架；ADAMS；运动学分析；大转角

Abstract: The accelerated electrification of automobiles raises requirements for overall vehicle performance, placing higher demands on the kinematic characteristics and dynamic response of suspension systems. This paper studies the kinematic properties of the newly optimized MacPherson suspension. Based on multi-body dynamics theory, a virtual prototype model of the suspension is established via the ADAMS/Car platform. Simulation results demonstrate that under wheel travel conditions, the variation trends of toe angle, camber angle, kingpin inclination angle, kingpin caster angle and roll center height of the new suspension are similar to those of the traditional MacPherson suspension, which maintains favorable driving stability. Under steering conditions, the new suspension delivers prominent advantages with larger wheel steering angle, smaller turning diameter and lower steering gear ratio, effectively improving vehicle maneuverability and steering sensitivity. The research findings provide theoretical reference and simulation support for the optimal design of suspension systems for electric vehicles.

Key words: novel MacPherson suspension; ADAMS; kinematic analysis; big steer angle