Car Blog

Because common with the “deformationKing Kong”The producers of the long-term relationship, itsChevroletCruze, With their journey. Early2009In the summer, “Transformers2″Aggressively when the famous German generalModifiedPlantIrmscherWork together to launch the Cruze Transformers Special Edition, also known as “black bee” version. With the cool appearance, power enhancements, coupled with improved performance and configuration, Cruze Transformers Special Edition won the industry and consumers alike.

Cruze Transformers Edition

Meanwhile, GM in China, also shows a hand-built “Little Hornet” version of the Cruze, the whole body is bright yellow paint mixed with black trim, bionic hornet insect body warning color patterns. Exquisite “Little Hornet” version of the Cruze, wherever he went, fans have become the focus of attention. In fact, the “Transformers” movie Autobot small robot – “Hornet” real body, is a ChevroletCorvetteSports. “Little Hornet” version of the Cruze mimic the Corvette by the appearance, and the “Hornet” and color, reached the vivid effect. Unfortunately, this is only a specially modified car, and it can not achieve mass production, it is difficult to normal sales and use, and ordinary consumers are prohibited.

Cruze Transformers Edition

Recently, the much anticipated “Transformers3″Upcoming, long-planned general, decided to use this golden opportunity again to be speculation, effectively raising the Chevrolet Cruze product image. The latest national car show announcement, GM officially declared a series called “Transformers Edition” of the Cruze new models, and passed the Development and Reform Commission approval, to be put on the market.

Currently, access and access to new car sales qualified “Transformers Edition” of the Cruze, a total ofSGM7164、SGM7164T、SGM7169、SGM7184、SGM7188Other five main types,DisplacementInto1.6L,1.6T、1.8L three categories, manual automatic transmission range, covering all the styles in the sale. Therefore, it is the intention of the consumer, can choose to own favored grade and configuration.

Cruze Transformers Edition

“Transformers Edition” Cruze, Size(L × W × H) = 4598 × 1797 × 1477mm, No change,WheelbaseRemains2685mm。Body structureThe wholeWeightVolume and the main parameters of the chassis, not the slightest change. Powertrain, and continued mix of cash, whether it is performance or fuel economy performance, no significant difference.

“Transformers Edition” Cruze is only common in the current production model based on the appearance made some minor changes. Machine cover, attached to two thin black trim, front windscreen extends to the grille on the edge of the network. Side front fenderTurnLights at the top, labeled AutobotsCarSteller’s coat of arms. Above the rear license frame chrome light bar is canceled, the trunk lid, adding two black spray. Change much, but look even more stylish and dynamic. Allegedly, common in the interior will also be changes in the local add some small ornaments on Transformers.

While this piecemeal reform, the way a cottage is suspected, but the related data and drawings have repeatedly confirmed that this is indeed common to the official form, the official launch of the facelift scheme. Chevrolet Cruze in maintaining vehicle styling, and product positioning, based on the cost of investment is very small, and the introduction of the popular elements of Transformers, after a successful idea. The most critical, which is the manufacturer of the original configuration, and individual behavior modification, an entirely different nature, consumers buy these cars, without worrying about the future of vehicle inspection or insurance related matters.

“Transformers3″May be delayed to8On release, GM3Months ago, will do the preparatory work, there is enough time for planning and promotion. Estimated time,4SIn the sales department before the license, a relatively low price, fans and owners to the dual role of both consumers sell conversion kits and installation services. Cruze interested fans or owners, can focus attention.

AutomotiveThe exterior design is a fantastic project, and sometimes people seem to get ahead into the nextCenturySometimes it back several decades to create a classic retro charm; the other hand, design is the most stringent technology, it not only to consider a variety of aerodynamics, ergonomics, but also with various mechanical parameters, The virtual computer model of high-tech production is concentrated expression.

Air resistance

As we all know, the faster the speed the greater the resistance, air resistance and vehicle speed proportional to the square. If the air resistance accounts for a large percentage of motor cars and the resistance will increase vehicle fuel consumption, or seriously affect the car’s dynamic performance. According to the test, a speed of 100 kilometers per hour in vehicles,EngineOutputPowerThe eighty percent will be used to overcome air resistance, reduce air resistance, can effectively improve the economy driving the car, so car designers attach great importance to aerodynamics. In introducing the article on car performance recurring “Air resistance coefficient”Aerodynamics is one of the special terms, but also to measureModernCar performance parameters.

The design of the future shape of a car, the lift is the premise of not increasing as much as possible reduce the air resistance.

The evolution of car styling

Approaching car, the first is its appearance attracted. Look how the different faces of evolution?

As vehicle speed increases,DragIssues to the design schedule up, especially pay attention to the speed of small cars. Reduce the air resistance there are two main ways to reduce frontal area and the use of streamlined shape.

Lower compartmentHeightCan effectively reduce the frontal area, for example, what is known as “ship” body shape, divided into the engine compartment, passenger cabin and luggage compartment, as the cockpit was built on the deck of the ship, increasingLengthReduce the height, effectively reduce the frontal area. We know that as a tool to take the load, reduction of frontal area is limited, called “wedge” of high-speed vehicles in terms of reducing frontal area can be described as a climax, but a small wedge of carrying space, and more as a car.

And streamlined to reduce air flow through the body can be generated when the eddy current, thereby reducing the resistance. For example,BeetleShape of the car to have a more obvious streamlined shape, a typical representative of the GermanPublicAutomobile production plants, “Beetle”Car. It hopes streamlined, but not the same car the ideal streamlined shape. It is commonly used in a variety of streamlined deformation, such as the hatchback, fish-shaped, drip-shaped … … or some combination of them.

So, streamlined than specific models. Streamline is the vortex of air flow does not produce the ideal shape, streamlined application the highest state of an airplane wing. The beetle-type, fish type, wedge-shaped, drip-type has a different degree of streamlined features, but as the carriage of the land for the purpose of conveyance, absolute streamlined is unrealistic. Streamline also has its drawbacks, is produced when high-speed lift, of driving stability. To overcome this drawback, the designers also installed in the car body panels and spoiler diversion.

Arbitrary shape? If you do not take into account wind resistance, is not to be free to children as building blocks to create a variety of different shapes of the cars? The main function of automotive parts are some big guys, engine,Transmission、SteeringWhich devices are accounted for … … place. If there is light and efficient energy, if a button with a line instead of mechanical transmission components, if all the parts are made of the module and through a common interface to connect, if all these technologies have been practical, you and I can dream be achieved.

Today, that dream car has been in the 2002 North American Auto Show revealed its Zou type.General MotorsThe company’s own magic (Autonomy) of theChassisSimilar to the slide, the center of the chassis has a standard access port, all the vehicle systems to easily and quickly connected with the chassis, chassis and body be based on random combinations assembled their own aspirations. Today it is a “Concept car”Tomorrow, it might be a commercial vehicle.

A streamlined shape

The five components of drag cars

Body design is a lot of knowledge, one of the important content is the drag problem.

Usually means that the drag cars are mostly produced by interaction of external and airflow resistance. In fact, the air flowing through the vehicle’s interior is also driving the car constituted resistance. The results show that the role of resistance in the car by 5-part.

First, the shape resistance, the motor vehicle front body positive pressure and negative pressure difference between the rear of the formation of resistance, about 58% of the air resistance;

Second, interference resistance, outstanding surface of the motor vehicle parts, such asBumper, Mirrors, front license, drainage channels, chassis and other transmission interference caused by air resistance produced, accounting for 14% of the air resistance;

Third, the internal resistance of the motor vehicle interior air flow, cooling the engine air currents caused by the resistance, about 12% of the air resistance;

Fourth, the lift produced by the high speed caused by the resistance, aerodynamic drag accounts for about 7%;

Fifth, the friction of the air flow relative to the body, accounting for 9% of the air resistance;

For the first, two kinds of resistance, the car body design should be streamlined as much as possible, not too much cross-sectional area, body parts with the appropriate arc transition, to minimize the outstanding body attachment, front face, the engine hatch, before the wind Tilt the glass properly, the rear window, after the roof of the length, angle of the design should be appropriate. In addition, you can install in place deflector or spoiler. By studying the airflow car outside the law can not only design a more reasonableBody structureCan also be cleverly steering flow, the appropriate use of the scouring action of the local airflow to reduce car off the dust deposition.

For the fourth resistance, to try to reduce the moving lift, including the former low after the high strings, backplanes upturned tail of the appropriate installation guide plate and the spoiler and other measures.

Part of the external air is introduced vehicle’s interior, may be reduced to some extent, the external air flow resistance of the car, but the air in the internal airway through the friction generated when, vortex losses. Flow of vehicles within the law, you can try to reduce internal air resistance, effectively cooling and ventilation. Use of air distribution, but also skillfully arranged inlet of the engine high pressure areas, to improve intake efficiency and reduce the pressure near the vortex, while the exhaust port area of ​​low pressure scheduled to make the exhaust more smoothly.

Careful readers may have noticed, the above discussion with a number of non-restrictive terms, such as “appropriate” to use five times. Some readers may want to use some precise figures to express, such as the backward angle, fillet radius and so on. This involves the overall design concept of the body. Drag the whole structure is built on the concept car, a model car the best geometrical parameters, in the other models are not applicable. A small change is often a huge impact on the overall, is the so-called affect the situation as a whole. The data on technical books are strictly defined test conditions, the specific range of vehicles for test results. Without these preconditions, the data is ridiculous.

In order to reduce air drag coefficient, the shape of future models will be used to smooth curves to smooth the transition line blanking the car body. Wai Wai front and side, front wall, side panels and hood, and side after the Wai Wai are used in places smooth transition, under the hood tilt forward, the rear cover after a short while Gao Qiao, Ji daughter board back after contraction, using a large curved glass windshield, and the smooth transition with the roof, front windscreen and the horizontal angle is generally between 25 degrees -33 degrees, the phase level and the body side, front and rear lamps, door handle embedded in car body, body surface smooth and bright and clean as possible, the vehicle covered with a flat cover, lower the wholeHeightDegrees, etc., these measures will help reduce air resistance coefficient.

It tests showed that the air resistance coefficient for each ten percent reduction, fuel savings of about seven percent. There have been two kinds of the same quality, same size, but with different aerodynamic drag coefficient (0.44 and 0.25, respectively) to compare the car to 88 kilometers per hour, traveling 100 kilometers per hour, fuel consumption savings of the latter than the former 1.7 liter. Study the history of car-shaped car, from the beginning of this centuryFordT-box-type body and 30 medium-sized beetle’s body type, body type from the beetles to the 50′s hull body, 80 from the molded wedge-shaped body to body, until the day of the car body model, the appearance of each body shape , is not simply a period of a product of industrial design, but with the modern advances in aerodynamic technology development. Air drag coefficient of cars in the past has not seen the manual, this car is the introduction of common terms, become a parameter of concern.

Body shape design of two pairs of contradictions

Hyundai MotorThe pursuit of comfort, power and safety performance, these requirements shape the design of the body constitutes a contradiction.

First of all, ride comfort requires sufficient interior space, and to get extra space will increase the size of car appearance. Dimensions of motor vehicles, especially cross-sectional size increases, the frontal area is bound to increase in vehicle directly affects the carDrag coefficient. In this way, comfort and dynamic performance to constitute a contradiction. This conflict is relatively low in the car when the speed has little effect on the early box-style car is basically the car’s appearance needs to complete the internal design.

With the development of automotive technology, increasing the speed of vehicles, the drag on more and more prominent contradictions. Research shows that as speed increases, the resistance increase is small and the road is a big increase in wind resistance. General box car, the speed below 30 kilometers per hour, consumed power is greater than on the road to overcome the resistance the power consumed by air resistance. In more than this rate, the power consumption to a sharp drag on the increase. To the rate of about 70 kilometers per hour, the power required to overcome wind resistance will exceed the road resistance. If the speed of 100 km per hour, most of the power to overcome drag on the consumption.

Drag the two main factors, first, frontal area, and second vortex. The main measures to reduce the frontal area is to reduce the height of car. To reduce carWidthAlthough it can reduce the cross-sectional area, but generally not as good as a highly significant decrease. In order to retain sufficient internal space to ensure a comfortable passenger space, the car section can not be arbitrarily reduced. To further reduce the air resistance, it is necessary to reduce vehicle traffic generated from the eddy current start.

We often see in the street after passing a number of large trucks, road dust, paper Da Zhezhuan everywhere, this is the car driving the formation of the vortex of air stirring. Car windscreen, roof, side, rear vortex can be generated. Of the most effective means of eddy currentWind tunnelTest, still in the tunnel-type car model space, the body is surrounded by high-speed flow of air, so to simulate the conditions of a high-speed car. Various parts of the body through the installation of sensing devices measure the air movement. To understand the motion of vortex. Studies have shown that, with the streamlined body of the car the best performance against vortex.

Streamlined body of the longitudinal section and the shape similar to airplane wings, high speed will produce lift, have a negative effect on driving stability. This raises a second contradiction, namely, power and security conflicts. In order to increase stability,Hyundai MotorStreamlined body shape, based on the continuous improvement of the body center of gravity forward, the former low-high, increasing the relative area of ​​the rear longitudinal section, increase stir flow plate and so on.

Comfort and power, power and stability, how to resolve the contradiction between the two constitutes the main topic of the body design history. The car body from the box, the Beatles-based development to the ship, type of wedge and the drip now, and many of these variants on the basis of shape, its intrinsicDriverPower is the contradiction between the balance of these two processes. Car body design process, from a simple development from the inside out to the outside to inside, inside and outside the union way.

Bumper safer

Ease outside bumper impact absorbing, protective front and back of the safety device body. Twenty years ago, the car front and rear bumpers are metal based, with a thickness of 3 mm or more into a U-channel steel stamping, surface treatment, chrome, and the frame rails riveted or welded together, and there is a body the larger the gap, if it is a add up the parts.

With the auto industry, car bumpers as an important safety device but also to the innovation of the road. In addition to today’s cars to keep the original front and rear bumper protection, but also the pursuit of harmony and unity with the body shape, the pursuit of their lightweight. To achieve this purpose, the current car with a plastic front and rear bumpers Xing, known as the plastic bumper.

Plastic bumper is from the outside panels, beams and other cushioning materials, and consists of three parts. In which the outer plate and buffer material made of plastic, beams with a thickness of about 1.5 mm cold-rolled sheet metal from U-groove; outer plate and the cushioning material attached to the beam, the beam and the frame rails screw connection, you can always dismantled. The plastic used in plastic bumper and large systems using two kinds of polyester and polypropylene materials systems, the use of injection molding into the legal system. For example,Beautiful405 bumper cars, using a polyester material and the Department of reaction injection molding method used made; and publicAudi100、Al GoreFu, ShanghaiSantana, TianjinCharadeBumper cars and other models, the use of materials of polypropylene injection molding system into the legal system. Overseas there is a plastic called polycarbonate ester series, infiltrated alloy composition, the use of alloy injection molding method, processing out of the bumper not only has high strength rigid, but also has the advantage can be welded, and the coating performance, in the amount of cars is increasing.

Plastic bumper with strength, rigidity and decorative, from a security point of view, when a collision car cushion to protect the front and rear body, in appearance, can be combined with the body naturally in the piece, totally into one, with good decoration, as decorative appearance of the important parts of cars.

March, the outbreak in eastern Japan, 9.0 earthquake and tsunami, a world industry experience another earthquake.

Disaster at the beginning, we had to explore its impact on the automotive industry. In time, more than the past two months after the earthquake and tsunami that rolled up the dust and haze, there has been dissipated some, but others have accumulated over time, the negative impact is only now gradually emerging — This is perhaps another A sense of “the dust settles.”

The automobile industry, for example, the world’s top ten automotive Automotive Group, four are Japanese companies, including world number oneToyotaCars, they suffered heavy losses in the earthquake, the production is difficult to recover. The most serious cases, such as people expected the same, parts supply, resulting in successive car factories around the world to stop production or reduce production.

Now, the impact of the earthquake have been from the car companies “transition” to the consumer’s head. Japanese already have a number of joint ventures in China, cut or stop production, tight supply caused prices of terminal benefits to reduce or even increase, or put off time extended indefinitely. The number of Japanese companies had a million in benefits canceled.

In fact, the earthquake not only the production of Japanese automobile impact, and even other countries in Europe or North America’s auto companies have also been implicated. A car prices insiders told reporters in Fukushima area, there is a production of raw materials, parts suppliers factory damaged in the earthquake, this raw material is the deployment of automotive metallic paint one of the important raw materials, the supplier is also the world only the production of such raw materials suppliers, the world’s automobile manufacturers are so affected. Not only that, Japan is the world of advanced electronic components, automotive parts and components enterprises preferred sources of supply, also badly hit after the earthquake.

This issue, we car prices, and by many dealers to visit Beijing to see the earthquake, “dust”, which has begun to dissipate, which has accumulated in the side.

FAW Mazda(Microblogging)

October may be out of stock

According to FAWMazdaChina Day Pass store sales manager Dong Xuan introduction, the original reserve supply of spare parts only two or three months, although the manufacturers have a conscious control of the production rhythm, will not all run out of spare parts available, but may start from July to To cut half of October may be more serious. So now the price of store models has increased about 1%, rising about one or two thousand dollars. “As the purchasing power of the release of customers, about sales is expected to be warmer in July, while the combined impact of the earthquake is expected in October after the store may be out of stock.” Dong Xuan said.

Manufacturers reduced sales plan

Into May, due to gradually run out of spare parts, FAW Mazda-made cars of earthquakes on the impact of starting to show. Last week reporters learned from the FAW Mazda, the current plant capacity has been reduced, and now has returned to normal production rhythm. In addition, FAW Mazda is also down this year, sales began to consider the objectives, specific reduction of the proportion of still studying it. Moreover, as a supplier severely damaged in the earthquake, Mazda all models of purple and blue models are not produced, I am afraid not to resume production shortly.

Changes in specific models:Rui YiChina FAW Mazda 2.0L Luxury Day Pass in stores in April before the sales price is about 182,800 yuan (official guide price is 194,800 yuan), is now back up to 184,800 yuan or so.

Dongfeng Honda

No significant change

According to DongfengHondaXin Bo Zhang Feng, general manager of Dragon shop introduced after the earthquake cut about one-third of Dongfeng Honda, but the store’s supply and prices have not produced much change. “Because the situation in Beijing is not good in sales this year, so it is also based on supply manufacturers to supply the needs of dealers, the supply after the earthquake in Beijing has little impact.”

】 【Manufacturers or extension of the new car market

Deputy General Manager of Dongfeng Honda Chenbin Bo said that as Japanese parts supply is limited, Dongfeng Honda recent production be affected, however, as the situation improved, the impact on overall production this year will not be too large, or will decline 5% -10 %. The second half of the original plan of the new yearCivicWill therefore postpone the year is still unable to determine whether the listing.

As a result of the earthquake in Japan supply parts and components, the Japanese Honda Motor Company has stopped accepting dealer orders for models produced in Japan. Meanwhile, the newCR-VThe release will be delayed at least a month. Honda president has said Takanobu Ito, as some parts shortages, production line in China at full capacity only 50% of capacity to work in Guangzhou and Wuhan, Honda parts inventory adjustments; but did not disclose the production adjustment plan will be implemented long.