What is trailing arm?

1. Introduction

The trailing arm suspension let’s call semi-independent suspension.

From the point of view of the major classification is suspended, all the suspension can be divided into two categories, namely: independent suspension and non-independent suspension. However, but the torsion beam suspension trailing arm, these two classification becomes somewhat blurred. Suspended from the structural point of view belong to the letter of the non-independent suspension, because the rocker arm around the longitudinal direction is a torsion beam with coarse welded together, but suspended from the performance point of view, such a suspension is achieved with greater stability full towed independent suspension performance

after a typical trailing arm suspension

Volkswagen Beetle using drag arm after the suspension

2, trailing arm suspension disadvantages

the trailing arm suspension itself has the disadvantage of non-independent suspension, but also combines the advantages of an independent suspension biggest advantage trailing arm suspension is about two large space, and there is no change in the camber angle of the vehicle body, the shock bending stress does not occur, so little friction. Trailing arm suspension comfort and handling are limited, when it is in addition to the front brakes to be heavier outer sink, trailing arm rear suspension also balanced sinking body, we can not provide precise geometry control.

Different manufacturers of such different suspension title: such as: twisted Liangdu Li trailing arm suspension, the trailing arm non-independent torsion beam suspension, H-type vertical suspension arm and so forth. After all they are all the same suspension structure – trailing arm suspension, just a slightly different tune.

3, the trailing arm suspension design

In the trailing arm type suspension design process, different beam longitudinal arm in the mounted position of the performance thereof manifested very large, if the closer the point of attachment beam mounting the trailing arm and the vehicle body, the better the comfort of the carBut roll when cornering will be bigger. If the beam is mounted closer to the trailing arm close to the wheel center, comfortable performance will be greatly reduced, it is manifested by a characteristic of the carrier and oriented. We are closer to the overall design of the bridge.

The trailing arm type suspension as well as well-known Santana

Domestic use of drag arm rear suspension are: Dongfeng Peugeot 207, Guangzhou Honda Fit, Toyota Corolla FAW, Shanghai Volkswagen Santana.