As people's requirements for car comfort are getting higher and higher, today's car owners are becoming more and more picky about the quiet performance of tires when purchasing tires. Especially in recent years, the popularity of new energy vehicles has made car owners have higher requirements for quiet tires.
The nature of tire noise
The main source of tire noise comes from the tread block hitting the ground while driving. Car owners who have used high-performance street tires have a deep understanding that the larger the tread blocks, the louder the rolling noise. This is actually the "pumping noise" that occurs when the tires are rolling. When the tire pattern rolls over the road, the rubber block in the tread pattern will deform, causing the air between the tire pattern and the road surface to continuously "squeeze" and "release", and the air will burst out and make noise.
How do traditional tires control noise?
So how do traditional tires control noise?
The technical approaches used by traditional tires to control noise include softening tread rubber (rubber material formula) and optimizing tread pattern design. By using a softer rubber material, the bounce impact of the tire is reduced; through reasonable pattern optimization, the "gear effect" of tire rolling is reduced.
How silent cotton tires deal with noise
But silent cotton tires have another "killer feature": the use of specially optimized and designed special polyurethane silent cotton to actively absorb the rolling noise of the tires. If the mute method of traditional tires is to "avoid the generation of noise as much as possible", then the mute method of silent cotton tires is to "actively absorb sound". Of course, the truly silent cotton tire method of dealing with noise is a "multi-pronged approach".
The special silent cotton in the carcass can be specially optimized according to the frequency of noise generated when the tire is actually rolling. The sound absorption efficiency is strong, especially the impact noise of tire bounce is very efficient. Therefore, silent cotton tires can remain quiet and comfortable when driving on roads with different roughness.
People have never stopped pursuing the quietness of tires. In the past, due to the loud engine noise, tire noise was difficult to detect. But now, with the increasing quietness of vehicles and the emergence of electric vehicles, the noise of the vehicle itself has been greatly reduced. At this time, the problem of tire noise becomes prominent. This is especially true for some electric vehicles without engines. This forces tire companies to develop quieter tires.
