Views: 86 Author: Site Editor Publish Time: 2020-11-03 Origin: Site
The English abbreviation of the explosion-proof tire is RSC. The inflated tire wall is the main part that supports the weight of the vehicle. Especially for some tires with a large flat ratio (flat ratio is the ratio of tire height to width), the wall is very "heavy". When the "flat tire" is serious, it will usually cause the tire wall to collapse instantaneously, thereby causing the tire to lose its support force instantly, causing the center of gravity of the vehicle to change immediately, especially when the front wheel of a front-wheel drive vehicle bursts. The momentary shift of the center of gravity after the tire burst may cause the vehicle to lose control. The explosion-proof tire is composed of an outer tire, a commonly used inner tire, a spare inner tire, a steel ring, a gas generator (or gas storage cavity), a tire pressure sensor( also called tire air pressure sensor), and a control unit.
If the driver has no driving experience after a flat tire (most people do not), he may do wrong driving actions (such as sudden braking), which will lead to out of control of the vehicle. A flat tire is a very serious safety accident, especially on highway. According to statistics, 70% of accidents on domestic highways are caused by flat tires, and if the speed is over 160m/h, the death rate is close to 100%.
Equipping vehicles with "explosion-proof tires" solves worrying safety issues to the greatest extent. However, the truly "explosion-proof tires" are military off-road armored vehicles with 6 × 6, 8 × 6 and other tires. Their tires are designed with special metal strips, which can keep the tires from deforming even if they are hit by artillery shrapnel. Although ordinary civilian "explosion-proof tires" cannot be so powerful, the principle of "explosion-proof" is basically the same.
In 2001, BMW's fourth-generation 7 Series was launched. In addition to the strange shape and the maddening idrive electronic system that caused controversy, the 7 Series was equipped with the first explosion-proof tire in the mass production model, which is enough to attract people's attention. When the domestically produced new 3 Series debuted in 2005, BMW Brilliance also introduced this technology called RSC explosion-proof tires to the market with high profile. Today, all BMW models are equipped with RSC tires.
In the case of RSC tire deflation, the vehicle can still travel at a speed of 80 km / h for 250 km. RSC has been able to avoid the major safety accidents that would almost be caused when there is a flat tire on the highway, and it could prevent you from risking changing tires on the highway. Even in an emergency, there is no time to change the tire after the tire is punctured, and the explosion-proof tire can support you to travel 250 kilometers.
The reason why the RSC explosion-proof tire does not collapse after deflation is mainly because that the thick rubber sidewalls can support the weight of the vehicle even if the air pressure is lost, and will not cause serious deformation, so the tire will not seriously affect the driving of the vehicle, even the owner may not feel it.
In order to prevent the tire from detaching from the rim after deformation, the rim is specially designed. The ridges on the rim can prevent the tire from detaching after a sudden drop in pressure. Vehicles equipped with explosion-proof tires may not be noticed by the owner when a small deflation occurs, so RSC also includes a TPI electronic warning system installed on the rim. Once the tire pressure begins to drop, RSC immediately warns the driver. After all, insufficient tire pressure is always dangerous.
Each tire brand has its own explosion-proof tire technology, including Goodyear, Pirelli and Michelin. However, Michelin, one of the world's tire giants, encountered setbacks in the development of explosion-proof tires.
In December 2007, Michelin announced that it would stop the development of PAX runflat tires and rim systems. Michelin announced the PAX system as early as 1997. The PAX system was very advanced. It consists of a tire, a special wheel hub, a built-in support ring, and a tire pressure monitor (or TPMS indicator). In particular, it must be installed by a specially designed rim, the rim has an outwardly anchored spigot. When the tire is vertically installed on the rim, the specially designed spigot can catch the tire on the rim like a clip on.
But there are always problems. PAX is not a tire, but the entire system. The reason why it is called a "system" is because this tire is not just an ordinary tire but an interrelated one composed of wheels and tires. Specially designed wheels make the promotion more difficult and increase the manufacturing cost. Another fatal reason is that the PAX system launched in 2005 would increase the weight by 25% compared with ordinary tires, that is, four PAX tires are equivalent to the weight of a spare tire, so the use of explosion-proof tires and the elimination of spare tires weight design no longer makes sense.
In addition to the explosion-proof tire, most of the car brands also adopt the tire pressure monitoring system, including the rv tire pressure monitoring system, trailer tire pressure monitoring system, wireless tire pressure monitoring system, etc, which can enhance the driving safety.
