[YesAuto Tire Interpretation] From the debut of the DRICE series, to the subsequent X-ICE, X-ICE XI2, X-ICE XI3, Bingchi 3+… Michelin winter tires have entered the domestic market for 20 years and have brought several generations of products . Earlier, Michelin released the latest new Bingchi series of winter tires (hereinafter referred to as: New Bingchi), which has been significantly upgraded compared to the previously released products. Will the pain points of consumers, such as the hardening of rubber and the decline in grip, be solved? Let's take a look at this new tire together.
For consumers, the smooth acceleration of the vehicle when driving on ice and snow, good braking effect, no idling of the tires, and degradation of tire performance are all important aspects they value. The new Michelin Bingchi mainly uses tread patterns, tread structure, tire materials and other parts to ensure that the tires are always in the best condition, provide good grip, and solve the pain points of consumers.
Let us first talk about the pattern of the new ice chi. Unlike summer tires, winter tires face more complex road conditions, and the tire surface pattern looks more “rich”. Xinbing adopts a pattern design called “Ling Claw Groove Combination”. Among them, the V-shaped groove is mainly used to improve the self-cleaning ability of the tires on deep snow/snowmelt roads, quickly discharge snow or water, and keep the tires always Grip. In addition, such as U-shaped thin grooves are also used to increase the contact area between the tire and the road surface, thereby improving grip. The area called the VTS interlocking coarse groove serves to improve the rigidity of the tire.
The patterns introduced above can be directly seen by the eyes, and the “hidden” part of the tire tread structure cannot be ignored either. Most common winter tires are made of winter soft rubber on the top layer and winter hard rubber on the bottom layer. We can simply understand that the soft rubber provides better contact surface/grip, and the hard tape provides the required support. The whole structure design seems to be nothing wrong. But its disadvantage is that as the tire wears, the soft rubber becomes less and less, and the grip will show a cliff-like attenuation. Even the previous generation of Michelin's tread structure also has this problem.
In order to avoid this problem, the new Bingchi adopts the design of full tread soft rubber, and adds the newly developed “grinding polymer material” developed by Michelin, which can keep the winter tires soft and elastic after several years. It can ensure the wear resistance of the tires, and the grip can always be guaranteed.
The use of “grinding polymer materials” plays a key role in the performance of the entire tire. It is mainly through adding special polymer materials to the rubber to form special dense micropores after the tire surface is worn, so that the tire always In a “non-smooth” state. Compared with Bingchi 3+ tires using “Powder Melting Technology”, it has larger micropores, more irregular shapes, and rougher corners. This is conducive to the micropores to absorb the ice water film and scrape. snow. In addition, the matching of the size and hardness of the particles (grinding polymer materials) is undoubtedly the most troublesome problem for engineers during research and development. How to find the most suitable ratio has become the focus of research and development. The whole process has gone through dozens of rounds of experiments. /Verification can be completed.
When the test tires are at the same level of new and old, tire pressure, and the test vehicle specifications are the same, the performance of the test vehicle equipped with the new Bingchi tires on ice is indeed better than that of the winter tires of the competitors of the same level. The vehicle has better tracking performance when turning, and the steering wheel can be turned slightly smaller and can pass the same corner without understeer. Of course, the difference between the two tires when braking is even more intuitive and obvious. Even with full braking at 20km/h, the braking distance of the new ice car is about 2 meters shorter than that of its opponents.
to sum up:
New Bingchi uses the fourth-generation ice and snow grip technology, grinding polymer materials and other newly developed technologies to bring better grip to the tires, while further improving the “anti-aging” ability of winter tires. These are very important for consumers. The important part. After helping users solve these “pain points” and providing a wealth of tire specifications (140 different specifications, covering 14-22 inches), I believe that the new ice car will have a good market performance. (Picture/Text/Zhou Churan, Home of Photography Cars)