7 pm every day, when people pass by Citigroup Tower, Pudong, Shanghai, the city side of the building found a giant Michelin villain, here is a bunch of rolling green numbers: it has recorded since 1992 Michelin listing of green tires, which reduce fuel consumption and reduce carbon dioxide emissions, real-time data.
Michelin Energy tires is no longer the monopoly of Bridgestone, Yokohama tires, Goodyear tires and other moguls have launched their own energy-saving tire products. Energy-saving emission reduction has become a car manufacturer problem. Hybrid, electric, fuel cell … … vehicle manufacturers have to find a new green power, as a key auto parts tires, manufacturers have also started in the green wave, through the production of raw materials and production processes on the update, introduction of environmentally friendly products have appeal to occupy this piece of the market in the ascendant.
Energy-saving technology “revolution”
Automobile driving the process, will produce a variety of driving resistance, of which nearly 80% of air resistance, the remaining 20% of the rolling resistance (the car driving resistance).
Data show that at present the process of tire friction and heat release of CO2 released from fossil fuels accounts for the world’s greenhouse gases, 3%; a considerable portion of vehicle fuel consumption to overcome frictional resistance tires. The European Commission figures show that automobile tires, rolling resistance, energy needed to account for about 20% of vehicle fuel consumption – in other words, the equivalent of five times for each plus oil, there is one for the sole purpose tires added.
Vehicle fuel economy is now no longer a common technical indicators, the car has become the world an important basis for the implementation of monitoring. According to the determination of tire rolling resistance decreased by 7% each, would allow vehicles to reduce fuel consumption by 1%, but also significantly reduce CO2 emissions.
If you use a smaller rolling resistance tires, a moving vehicle throttle foot level also will be reduced, which means you can save fuel consumption. The resulting carbon dioxide emissions be reduced. Scrapped in the tire production as well as the life cycle, 80% of the carbon dioxide emissions occur in a moving tire. Therefore, by reducing rolling resistance tires to reduce the overall energy consumption of vehicles so as to achieve fuel-efficient purpose, is entirely feasible.
This year in March, the European Parliament on whether mandatory starting in 2011 all new cars to use energy-saving tires held a vote. April 27, the European Parliament in Strasbourg adopted a resolution, starting in 2012, tire manufacturers must be marked on the tire of its fuel efficiency, wet grip and rolling noise. All tires must follow the system of classification, the best performance for the A-class, the worst performance for the G-class.
The resolution was released, the upper reaches of rubber tire industry supplier Lanxess Corporation that is welcomed, this means that tire fuel efficiency, safety and environmental impact have become consumers and downstream vehicle manufacturing market an important weight in the decision-making.
Energy-saving tires “triangular balance”
Both for the F1 race car drivers, or an ordinary car drivers, tires and a perfect interaction between the various road are critical. Tire manufacturers have to resort to a complex of “magic triangle in the dance.” This refers to wetlands tire adhesion (referring to the wet road grip), anti-wear ability and the balance between rolling resistance. In the dry and wet roads have enough grip is absolutely essential. Specifically designed to avoid the external geometry of the slip road tires in the snow.
Tire design to be able to ensure that a relatively high speed of the driver safely through turns, but at the same tire and asphalt pavement should not be “stick” to force too strong, too high will increase the rolling resistance of the adhesive, which would mean a higher fuel consumption and tire wear faster.
The main materials of modern tire tread rubber compounds is still, to add different additives rubber inside, then the tires will show a different performance. Only to achieve “triangular balance” of the tire to get the best energy-saving effect. This depends on the chemistry and physics and other subjects close co-operation between.
“The current mainstream energy-efficient tire technology relies mainly on the use of low friction and low heat to achieve a new type of raw materials, mainly containing silica is added, the industry said silica. But the combination of rubber and silica can not be directly, but also a number of other additives, such as the organosilane. “Evonik Degussa (China) Investment Co., Ltd. Sun, director of marketing told CBN’s love of the traditional carbon black is to increase tire wear resistance of important material. “The addition of silica and organic silane tires were good anti-slippery, rolling resistance is small, and generally made of carbon black filler in the tire at high speed will have a lot of heat, and add the white carbon black will reduce tire heat.” Sun Love this right CBN, told reporters.
Degussa has been committed to the development to reduce tire rolling resistance of the silicone rubber, Michelin, Goodyear, Yokohama tires are all of its important business partners. The last century, 90 years to develop a silica / silane technology, Degussa company was the first in the European market with silicone tires. Today, almost every car in Europe are equipped with tires containing silica tread. Today, silicone formulations are still in continuous improvement, tires are becoming increasingly more energy-efficient performance, more and more raw materials to produce an enterprise aimed at this market.
Another major supplier Lanxess Tire & Rubber Company is also developing different characteristics of rubber compounds, their study focused on how the tire tread in a more clever use of the silicon filler. Allows both the reduction in rolling resistance, but also improve the wet grip – short, shorter braking distances, thus prolonging the service life.
Green Car Industry Chain
And upstream raw material vendors in close cooperation with several industry-leading multinational giant tires are constantly developing new products that is conducive to energy conservation.
Michelin in the last century began to use 90 years to join silicon rubber components, adding the silicon material enhances tire grip, and then compared to radial tires, greatly reducing the rolling resistance. This innovative technology gave birth to Michelin green energy saving tires, tire rolling resistance reduced by 20%. In the entire life of a car, this means that 20% less release of about 1 ton of carbon dioxide.
Goodyear tires, with the invention of corn extract are eco-friendly tire formula, developed the new “biological” tire filler can be used to replace the traditional tire filler. This new type of tire filler using renewable resources (such as corn starch) made a positive impact on the environment, and can significantly reduce tire production process of carbon dioxide emissions.
Yokohama Tire Rubber in improving the quality of the same time, the introduction of new material from inner liner makes the effect of gas to maintain a higher level. This by Exxon Mobil and the general development of new products lined compared to much higher air tightness can improve the gas retention within the tire in order to better maintain the tire pressure. As we all know, if the decline in tire tire pressure, tire rolling resistance will correspondingly larger, energy consumption will lead to increased fuel consumption.
And, Yokohama tires have been trying non-oil raw materials, new tire break away from dependence on oil. At present the development of a extracted from orange peel oil, to replace petroleum as raw material for production of tires, this “orange” tires have been on sale in Japan, the market was well received.
Vehicle manufacturers in the field of vision, the green tire more and more popular. From early 2008, Shanghai GM will establish a “green suppliers” of the team, and constantly improve the green supply chain. Goodyear Tire and Kumho Tire are all impressively.
The first anniversary of the financial crisis, the global recovery in the automotive and tire industry inflection point had a dim sense emerged, and environmental protection is the key to recovery.
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