REAR SUSPENSION OF COUPLED TORSION BEAM AXLE TYPE

摘要

PURPOSE: A coupled torsion beam axle type rear suspension system is provided to improve the weldability and cohesion between a torsion beam and a trailing arm. CONSTITUTION: A coupled torsion beam axle type rear suspension system(100) comprises a torsion beam(10), left and right trailing arms(30), and a reinforcement member(50). The torsion beam has a V-shaped cross section. The left and right trailing arms are formed by welding first and second arms(31,32) to each other and are connected to both ends of the torsion beam. The reinforcement member is welded to the inner surface of the torsion beam in a longitudinal direction and comprises multiple recessed grooves and through holes(53).