关键词: 扭转梁悬架；E 型四连杆悬架；承载能力；K&C 特性

Abstract: There are many types of rear suspension for passenger cars, and a large number of mainstream rear suspension are torsion beam suspension and E-type four-link suspension, but there are certain differences between the two suspension forms in terms of layout space, price and performance. This paper compares and analyzes the two common rear suspension structures of mainstream vehicles, torsion beam suspension and E-type four-link suspension from the dimensions of structure, bearing capacity and performance. The results show that the turning beam suspension has advantages only in terms of trunk space and tire wear, while the E-type four-link suspension has advantages in bearing capacity, four-wheel drive space, handling stability and ride comfort. It is suggested that A0 and A class vehicles with cost priority should adopt economical torsion beam suspension. The A and B class, which prioritizes stability and comfort, use the more expensive E-type four-link suspension. The conclusion of this analysis provides a certain reference for the selection of the rear suspension type during automobile research and development.

Key words: Torsion beam suspension; E-type four-link suspension; Bearing capacity; K&C charac- teristic