Why Honda, one of the three major Japanese brands, has not done a good job in sound insulation?

Automobile sound insulation, that is, noise control in the cockpit, is not necessarily low with more materials. This is a systematic project, which needs strong technical foundation and experimental data support. Not everyone can do it well. If we want to achieve different levels of noise control of Volkswagen Group, Japan is still far behind.

Last year, Touran went public, and the Japanese launched a smear campaign in an all-round way. Anyone who pays a little attention to the auto market knows that. One of the most attacked is poor noise control in Touran, because the front wheels can't see much filler from the engine compartment, let alone sound insulation materials. With the unified propaganda caliber of the head of Japanese public relations, I insisted that this was a car with poor NVH, and then countless small five hairs shouted at the top of their lungs. Results No matter the car review or test results, Touran not only had excellent NVH, but also won the best crash performance of large and medium-sized SUVs in the United States, putting Highlander under his feet.

What does this example show? It's not just car manufacturers that solve the noise control problem. It must be informative.

It must be affirmed that sound insulation is a very complicated system engineering, not to say that it can be done by thickening the sound insulation cotton or changing the double glass.

If a car wants to have good NVH performance, it must start with the mechanical structure of the whole car, and every link from the chassis bushing to the body rigidity should be specially studied. This is a systematic project for many years. Honda did not start this skill tree in its early years, so it naturally lags behind other car companies in terms of sound insulation.

Similarly, the adjustment of powertrain and chassis is also a complicated project, but Honda has accumulated a lot in these two aspects, which makes every Honda car have better power and control than its peers, and also creates Honda's distinctive character.

Many people say that Honda makes cars without sound insulation, which is of course a joke. However, this also reflects that Honda did not attach importance to sound insulation or deliberately ignored sound insulation when building a car. It's not that Honda can't do sound insulation well. For example, the sound insulation of Crown Road and URV is very good, unlike Honda cars.

Then why not soundproof? You are right, it is to save costs, and it is not a small cost. Because there are many sources of noise, tire noise, wind noise, site noise, engine noise and even exhaust noise, all kinds of noise will flood in from all directions. Therefore, to reduce noise, it is not small in terms of engineering quantity. Almost all cars have to be done, and the labor cost alone is not low. Of course, the time cost should also be included. In addition, there is no breakthrough in noise reduction technology. To put it bluntly, if you want to reduce noise, you can only use good sound insulation materials and increase the amount of sound insulation materials. Therefore, the cost of materials, labor and time will rise too much. So you can understand why Honda is willing to do sound insulation.