Discussion on various tread patterns

As the only medium vehicle tire, contact with the ground, shouldering the important responsibility bearing, brake and driving safety. While the vehicle is moving in a normal road, tire real contact area with the ground, never than we walk on the road of sole and the ground contact area of much. The contact area is so small, need to complete the above so many important and complex work, then the pattern on the tire plays a crucial role in.

Generally speaking, the tire tread or tire tread on a variety of longitudinal, transverse, oblique consisting of trench. Don’t look at those across the vertical pattern is a mess, but they can have a clear division of labor. Longitudinal patterns as features has vertical continuity, so the main bear rain drainage function, and for tire cooling is also very helpful, but lack of grip. Lateral pattern has a greater ability to grip, congenital defects which can compensate for the longitudinal pattern.

Design of an ordinary civilian tire requires comprehensive consideration, not only to meet the sunny dry running, but also to meet the rainy wetland running, can be said to a year four seasons climate characteristics are taken into account, so that ordinary users can not see the weather often go to change a tire.

Longitudinal tire tread on the main played fast drainage effect, but it will cause the tire grip ability is insufficient; the transverse pattern on the tire has a high ability to grip, but the drainage capacity and guidance is not good. Therefore the design of tire engineers will be two kinds of patterns mix together and reached a “tacit understanding”, let the middle transverse patterns to provide a rapid drainage of the longitudinal pattern and shoulder to provide grip with a perfect situation, so that mixed pattern was born. At present this mixture of tire tread pattern is widely used in cars, buses, trucks and other large numbers of vehicles, is one of the most worry choice.

Asymmetric patterns that both sides have different pattern structure. Because of the left and right pattern structure is different, so usually the design will pay more attention to the design of lateral pressure increases when turning the tread pattern. This is why the asymmetric tire in some cases cornering performance will cause relatively great. And considering the daily use, wear resistance of tire lateral asymmetry patterns can also be a corresponding increase in.

Not only that, because the two sides of the pattern with different structure and rubber formula, so the overall performance of tire can be stronger and more comprehensive, such as side pattern could focus on the drainage capacity, while the pattern could focus on the grip etc.. The asymmetric tire has been widely used, and has made the market definitely, is the majority of the owners to buy when the tire is preferred.

Note that because the tire inside and outside pattern is different, the installation must determine the correct tire. When using this pattern of the tire in tire on no special requirements, all around, as long as the main tire and can.

The mutual connection between single direction of the tire tread groove, have a road performance strong and drainage ability strong. The pattern of the tire rolling direction fixed, that is to say that the tire can be running in a direction, so that the advantages of tire rolling resistance will be relatively small, the vehicle handling more outstanding. But also because of this design single guide tires not about the same side only tire swap, that’s why it’s called the single oriented tire.

The single oriented pattern are all in one direction, and the mole larger pattern, crosscutting pattern and other small features. These characteristics determine the single oriented tire rolling resistance, control performance, performance advantage. The single oriented tire has a strong grip and drainage performance, and speed levels can be very high, the directivity and the control performance and can satisfy the demanding fancier.

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2013 global Auto Companies sales

Toyota Group is expected reelection highest car company in Laurel of Global car sales, nearly 10 million units sold last year ; General Motors and Volkswagen will occupy the other two seats in the top three, with the difference is extremely small, compared to 2012 while shortening the distance with Toyota.

November 2013, covering Toyota, Hino and Daihatsu three business department, the Toyota Group in November worldwide sales of 861,000 vehicles, compared with November 2012, an increase of 9.8%. 1-11 January, Toyota ‘s worldwide cumulative sales reached a new high of 9.093 million units, representing a slight rise of 1.8%.

In August 2013, Toyota announced production and marketing plan, its global sales target set last year to 9.96 million, compared to 9.748 million in 2012, an increase of 2.2%, but less than the earlier target by 10,000 vehicles. But according to the pre- November sales estimates, Toyota is likely to be higher than the annual sales target, the impact of 10 million mark. Japanese media said that if in December 2012 over the same period to maintain the level, then Toyota’s annual sales of 9.993 million.

Whether the target 9.96 million, or 9.993 million from media estimates, the Toyota Group ‘s sales have exceeded General Motors and Volkswagen Group.

General Motors recently announced that in the fourth quarter of 2013 achieved worldwide sales of 2,463,380 vehicles, compared with the fourth quarter of 2012 2,342,247 vehicles, an increase of 5.2 %. Last year, GM sold 9,714,652 vehicles worldwide, compared to 9,297,074 in 2012 (published figure was 9,285,991 last year ) vehicles, an increase of 4.5%.

According to the public data, if you do not include Mann and two commercial vehicle subsidiary of Scania, Volkswagen Group in December 2013 global sales of 833,200 units, compared to December 2012 ‘s 784,100 vehicles, an increase of 6.3 %. Last year, the Volkswagen Group’s global light vehicle sales of 9.5 million delivery, compared with 9.3 million in 2012, representing a rise of 4.8%.

Since the Volkswagen data is not accurate, the current media temporarily finds GM slightly beyond Volkswagen, ranked second in the sales charts last year. Volkswagen is expected to release exact sales figures when publish the 2013 financial data.

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Cadillac 2013 sales up 67% in China

Cadillac sales in the Chinese market is growing rapidly , over half of last year, an increase of more than one month . 2013 full year , Cadillac sales in China to 50,005 , compared to 30,010 in 2012 , a sharp rise of 66.6% year on year , reaching a record annual sales record.

Cadillac SRX continues to be its most popular models , which sold 26,897 , 2012 sales of 21,698 , an increase of 24.0%. Cadillac XTS in the first year after listing sales reached 20,101 units. In addition, in November last year, just listed Cadillac ATS year sales of 2,154 units.

Last year, the Cadillac brand has started in Shanghai GM Jinqiao plant production. Prior to 2016 , the brand will add a model in China every year . By the end of 2013 , Cadillac dealership in China has increased from 69 at the end of 2011, around 200 .

Former General Motors CEO Exxon has said Cadillac sales in China to the United States will eventually emulate . Shanghai GM made Cadillac brand will achieve the “Double Ten ” strategy, which exceeded 10 million units by 2015, annual sales in China to achieve a 10% share of the luxury car market in 2020 . According to some institutions are expected in 2020 China sales of 2.7 million in luxury cars , Cadillac sales in China are expected when more than 250,000 .

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Cuba eases restrictions on car imports

Cuba’s Council of Ministers has approved new regulations to lift a virtual 50-year ban on car imports, the official newspaper Granma reported Thursday.

The new regulations, approved Wednesday at a meeting between Cuban leader Raul Castro and his cabinet, will also apply to motorcycles, vans and minibuses, both new and used, the report said.

Prior to the approval, only foreign residents and privileged Cubans with so-called “letters of authorization” issued by the Transport Ministry had the right to import vehicles.

Those with this special permission will still be given the priority in importing and purchasing vehicles, the report said.

The only restriction to remain is that neither Cubans nor foreigners who bring in a vehicle can then sell it to an individual.

Over the decades, the restriction had turned the streets of Havana into a kind of outdoor automobile museum as old models of U. S.-made cars in the 1950s were carefully preserved in near mint condition. That could change with the opening up of the auto market.

Most vehicles on the island are pre-1959 models that have been maintained with Korean and Japanese-made parts. (Source: Xinhua)

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New Peugeot 3008 will be launched next year

In the next year, Dongfeng Peugeot will launch the new 3008 models. Compared to the current model, the new car will be equipped with a panoramic sunroof to meet more consumers’ demands. In power, the new Peugeot 3008 will remain unchanged.

Earlier in this year, Dongfeng Peugeot 3008 officially listed, not equipped with panoramic sunroof as the imported version, which could not help bringing consumers disappointment. However, the recent news from the point of view, the new models will be launched next year, while some models of new cars will be equipped with panoramic sunroof to meet the needs of more consumers. Of course, we understand that the size of new car panoramic sunroof is not as big as imported Edition models, but compared to the current model, it is somewhat increased.
New Peugeot 3008
In addition to the new car will be equipped with full panoramic sunroof, the information about the new Peugeot 3008 facelift information are not too exposed. In power, the new model will be still equipped with 2.0L and 1.6T engine and transmission sections are matched with five-speed manual gearbox and a six-speed manual gearbox.

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2013 Dodge Dart Priced much lower than Chevrolet Cruze

The 2013 Dodge Dart will start at $15,995, not such as a $795 location fee, when it goes on selling in June. This cost slots the 2013 Dart below rivals such as the 2012 Chevrolet Cruze, Ford Focus, Nissan Sentra and Toyota Corolla, however the Dart’s bottom cost is a whole great offer much more compared to 2012 Honda Civic, Hyundai Elantra, Mazda3 and Kia Forte.

The bottom 2013 Dart will obtain a 2.0-liter Tigershark four-cylinder powerplant that could make 160 horsepower, Dodge says within of a statement. The 2nd powerplant is typically a 1.4-liter MultiAir turbocharged four-cylinder that also produces 160 horsepower. Dodge says MultiAir technology provides “up to some 15 % increase in decrease powerplant rpm torque as well as a 7.5 % improvement in fuel efficiency.” The 3rd powerplant is typically a 184-horsepower, 2.4-liter four-cylinder Tigershark MultiAir 2. Dart purchasers might have three transmissions to uncover from: a six-speed manual, six-speed automated as well as a six-speed automated manual.
Standard protection attributes consist of 10 airbags, anti-lock brakes, electronic electronic brake-force distribution and traction control. The Dart will provide an optional blind place monitoring system, rear cross course detection, rear playground help and backup camera.

The bottom $15,995 SE Dart has energy glass windows as well as a compact disc stereo with an auxiliary audio tracks input, but is missing normal oxygen conditioning. The Dart’s insufficient normal oxygen conditioning is “something only a handful of males and girls are ready to forego nowadays,” path & observe reports. rivals such as the Honda Civic also need purchasers to include oxygen conditioning as an option.

The $17,995 Dart SXT gains normal oxygen conditioning, remote keyless entry as well as a protection alarm, even although the $18,995 Rallye trim gets exterior upgrades like fog lamps as well as a dual exhaust, as well getting a leather-wrapped steering wheel with audio tracks and cruise controls. limited designs start at $19,995 and function a normal 8.4-inch touch display infotainment system, rearview electronic camera and 10-way power-adjustable driver’s seat. The top-of-the-line R/T Dart will go on selling from the 3rd quarter of 2012 for $22,495 and adds normal attributes like leather-based seats, dual-zone environment control, heated seats as well as a heated steering wheel.
Optional attributes on particular trim quantities consist of Bluetooth, navigation, an upgraded seem method as well as a energy sunroof, as well getting a wireless charging mat for easily transportable devices.

The Dart is Dodge’s 1st compact auto granted how the Dodge Neon was discontinued best suited after the 2005 product year. The Detroit cost-free Press says the automaker “hopes to attract more youthful purchasers and individuals searching for worth from the nostalgic brand.”

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