Traditional suspension structure

The chassis analysis and pictures of Audi A4L are as follows:

When this generation of Audi A4L was officially unveiled, consumers found that there didn't seem to be much change in appearance design and modeling like the previous generation. Although the shape has not changed much, what is hidden below is the innovation of manufacturing technology and design concept. Of course, these innovations are only dwarfed by the changes in the chassis.

Front suspension structure: In fact, the front suspension is not very different from the previous generation in structure. They are all multi-link structures with control arms, but you will find many differences in details by comparing the schematic structure.

Judging from the front suspension structure, the suspension form has not changed, and it is still the original taste. Although there is no essential difference in the structure of the front suspension, it does not mean that there are no differences in some details.

In addition to the rigidity strengthening and weight reduction, the new A4L has also made some upgrades in braking performance and NVH. In other words, the new A4L is not just a "new shell" as many people say, and there are still many upgrades in the front suspension details.

Structure and details of rear suspension: From front to back, the change of rear suspension can be described as earth-shaking. From the initial trapezoidal link to the five-link design, this five-link suspension is actually not a "unique work". More precisely, this type of multi-link suspension is a structural form that many vehicles like to use at present.

Therefore, although the structure is novel, it is actually one of our common multi-link structures with compact structure and strong adaptability. Audi has not forgotten to optimize the aerodynamics of this suspension. See the real chapter for details.

Of course, in addition to the front and rear suspension upgrades, other aspects of the chassis have also been greatly improved. As mentioned above, how does the new A4L optimize the aerodynamics of the whole chassis?

The new A4L has made great efforts in aerodynamics, but the results are also excellent: the drag coefficient Cd value is only 0.23 (overseas version data, the previous generation Audi A4 overseas version is 0.27, and the current mercedes benz c overseas version is 0.24). But that doesn't mean it is a perfect work. Compared with the overseas version, it is really wrong to lose the rear guard of the chassis.

Of course, this conclusion is compared with the overseas version of the new Audi A4 2.0TDI diesel model, which means that the rear bottom guard may not be installed because of the different design of the exhaust muffler.

In addition to aerodynamic optimization, the chassis has some aspects worthy of attention, such as wire protection and tires, which is a good level in its class, but the fuel tank protection is a bit far-fetched.

For this level of domestic models, it is the first to lengthen, and the domestic Audi A4L has always been the representative of smelling consumer demand. In this replacement, the R&D team did not make drastic changes in appearance. On the contrary, the change of suspension structure is the core of this replacement. In addition, after the application of the new platform, the change of aerodynamic details is also the progress brought by this reloading.