Patent ID: 8998230
Filing Date: 2015-04-07
Classification: B60G

Abstract:
1. A rear suspension mounting structure for an electric vehicle based on a coupled torsion beam axle (CTBA) method, comprising: a hub fastened to a center of a wheel to be rotatable; a trailing arm including a housing producing an internal space and an arm bush extending to one side of the housing and coupled to a vehicle body; a torsion beam bolt-coupled to the arm bush through a coupling plate; a motor coupled to the internal space of the housing and supplying a driving force; a motor cover provided in the internal space of the housing and sealing the motor from an outside of the housing; and a driving speed reducer provided at an outside of the motor cover in the internal space of the housing, coupled to the hub and reducing an output driving speed in a constant gear ratio, wherein the torsion beam and the trailing arm are formed using dissimilar metals.