BMW 320d EfficientDynamics, 2010

BMW 320d EfficientDynamics, 2010

Teaming up with the BMW 320d, the new BMW 320d EfficientDynamics Edition is being presented for the first time at the 2009 Frankfurt Motor Show. This unique saloon combines fuel consumption of just 4.1 litres diesel/100 kilometres (equal to 68.9 mpg imp) and a CO2 rating of 109 grams per kilometre in the EU test cycle with engine output of 120 kW/163 hp.

The 2.0-litre four-cylinder diesel engine of this high-tech model boasts an all-aluminium crankcase, turbocharging with variable intake geometry and common-rail direct fuel injection complete with piezo-injectors. With the engine and the entire car modified once again for an even higher standard of efficiency, this unique saloon targeted above all at the German, Italian, French and Spanish markets comes with optimised aerodynamics, an extra-long final drive ratio, and an innovative two-mass flywheel incorporating a centrifugal-force pendulum.

All this makes the BMW 320d EfficientDynamics Edition the most fuel-efficient and lowest-emission car in BMW's current model range. In the fiercely contested midrange segment it is an unparalleled, highly attractive premium offer for the truly demanding and progressive customer focusing primarily on superior economy and the environment, without wishing to forego the sporting driving characteristics so typical of a genuine BMW.

The enhanced efficiency already offered by the existing models in the BMW 3-Series thanks to BMW EfficientDynamics making these cars superior to their competitors, is now raised to an even higher level in the BMW 320d EfficientDynamics Edition.

Four-cylinder diesel engine with optimised efficiency and superior performance all in one.
The BMW 320d EfficientDynamics Edition is powered by a four-cylinder diesel engine specifically optimised for even greater fuel economy and emission management and, therefore, for a standard of efficiency never seen before. All this comes from the 2.0-litre four-cylinder power unit with its all-aluminium crankcase, turbocharging and the latest generation of common-rail fuel injection featured with various power stages also in the BMW 316d, the BMW 318d and the BMW 320d. The engine specially conceived for the BMW 320d EfficientDynamics Edition develops maximum output of 120 kW/163 hp at an engine speed of 3,500-4,200 rpm and peak torque of 360 Newton-metres/265 lb-ft all the way from 1,750 to 3,000 rpm.

The engine stands out in particular through its sporting and dynamic power from low revs. The innovative centrifugal-force pendulum incorporated in the two-mass flywheel, together with the longer transmission ratio, serves to significantly reduce the level of engine speed at all road speeds relevant in practice in the BMW 320d EfficientDynamics Edition. The shift in load points beneficial to fuel economy and emissions goes together in this case with full maintenance of the spontaneity and running smoothness so typical of a BMW diesel.

To ensure smooth driving characteristics free of vibration also when driving at particularly low engine speeds, the power unit of the BMW 320d EfficientDynamics Edition features a so-called centrifugal pendulum efficiently compensating any unsmoothness in running characteristics typically encountered at low revs. This innovative component is integrated in the engine's two-mass flywheel where it dampens the vibrations generated under load, thus ensuring comfortable and acoustically optimised development of power and performance all the way from low engine speeds.

This increase in motoring comfort will encourage the driver to use a higher gear more often or, respectively, not to shift back as he otherwise would do. But when accelerating the BMW 320d EfficientDynamics Edition still offers the driving behaviour and agility so typical of BMW.

The driving dynamics characteristic of a BMW are borne out also by the car's acceleration to 100 km/h in just 8.2 seconds and by the BMW 320d EfficientDynamics Edition accelerating in fifth gear from 80-120 km/h in 9.6 seconds. Top speed is 225 km/h or 140 mph.

Lower emissions, more driving pleasure: consistently implementing the potential of BMW EfficientDynamics.
The BMW 320d EfficientDynamics Edition comes with the complete range of technologies serving to reduce both fuel consumption and emissions and already featured as standard on the other models in the BMW 3-Series. Brake Energy Regeneration, for example, serves to concentrate the generation of electric power for the on-board network on overrun and the application of the brakes, thus avoiding even the slightest increase in fuel consumption. The Auto Start Stop function, in turn, switches off the engine even during a short stop in traffic, avoiding any unnecessary consumption of fuel while idling. The gearshift point indicator on the BMW 320d EfficientDynamics Edition, to mention yet a further example, tells the driver in good time when to shift gears in the interest of optimum efficiency. And like the detachable climate compressor, EPS Electronic Power Steering operates only when needed, again in the interest of maximum efficiency.

The electric motor featured within the EPS system therefore takes up energy only when really needed for power assistance or when required by the driver. Active cooling through air flap control and tyres with reduced roll resistance also serve to enhance the car's efficiency, and the BMW 320d EfficientDynamics Edition is likewise fitted with a diesel particulates filter close to the engine. It almost goes without saying, finally, that the BMW 320d EfficientDynamics Edition fulfils the EU5 emission standard in full.

The fuel economy and emission management also featured in the other models in the BMW 3-Series are combined in the BMW 320d EfficientDynamics Edition with additional innovations, which, together with the decrease in engine power on the BMW 320d by 10 kW or 14 hp, serve to reduce fuel consumption and emissions to an even lower level, below the CO2 standard of 110 grams per kilometre relevant to taxation in many countries.

These additional features include a longer final drive ratio and the lower chassis and suspension of the car. Newly developed Aero wheel rims in turbine wheel design - the only optical sign of distinction on the car to be seen from outside - improve the level of aerodynamics to an even higher standard, giving the BMW 320d EfficientDynamics Edition a drag coefficient of just 0.26.

Within the BMW 3-Series the BMW 320d EfficientDynamics Edition is the so far most consistent implementation of the BMW EfficientDynamics development strategy, offering the motorist who really appreciates the premium character and sporting driving qualities of a BMW 3-Series and at the same time attaches utmost significance to superior economy exactly the right choice in the midrange market segment.

Comparing the efficiency of all models in this segment, BMW, introducing the BMW 320d EfficientDynamics Edition, is once again moving a step ahead of the competition. And following BMW's general policy, the improvement of efficiency offered by this innovative technology does not even require the payment of a higher price for the BMW 320d EfficientDynamics Edition, which therefore comes at the same price as the "regular" BMW 320d, which naturally is still included in BMW's model range.

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BMW 135i Coupe, 2010

BMW 135i Coupe, 2010

Starting immediately the BMW 135i Coupe and the BMW 135i Convertible come with a straight-six power unit of the latest generation for the first time combining BMW TwinPower Turbo Technology, High Precision Injection and fully variable VALVETRONIC valve management, all interacting with one another to set new standards for economy with the highest level of performance.

In conjunction with the seven-speed double-clutch gearbox (DKG) featuring Sport Automatic available as an option for the first time in the BMW 1-Series as of March 2010, these superior technologies offer a further significant reduction of fuel consumption and emissions on these top-flight performers, setting up new records in acceleration and dynamic performance.

The top engine featured in both versions of the BMW 1-Series develops maximum output of 225 kW/306 hp at 5,800 rpm from a capacity of three litres, combining spontaneous and direct response with unleashed free-revving driving qualities. Peak torque of the six-cylinder is 400 Newton-metres/295 lb-ft delivered from just 1,200 rpm all the way to 5,000 rpm.

The seven-speed double-clutch gearbox with Sport Automatic shifting gears without the slightest interruption in power and torque, is likewise designed and built for dynamic performance of the highest standard.

Sport Automatic offers not just the option to shift gears manually on the electronic gear selector lever or via the shift paddles on the steering wheel, but also the usual comfort and convenience of a BMW automatic transmission.
BMW 135i Coupe

The combination of these two innovations in a compact car naturally guarantees driving pleasure of a new standard never seen before. Accelerating from 0 - 60 mph in just 5.0 and from 0 - 100 km/h in 5.2 seconds, the BMW 135i Coupe with its double-clutch gearbox offers the same supreme standard as a thoroughbred sports car even more than in the past.

A truly unique achievement in this performance class is average fuel consumption in the EU test cycle of 8.5 litres/100 kilometres (equal to provisional combined of approx. 22 mpg US), almost one litre/100 kilometres better than the comparable figure in the former model with its six-speed automatic transmission.

This significant reduction of fuel consumption, together with acceleration to 60 mph improved once again by 0.2 seconds, clearly confirms the progress made through BMW EfficientDynamics with this new engine and transmission technology.

The BMW 135i Convertible with double-clutch gearbox accelerates to 60 mph in 5.3 seconds and reaches 100 km/h in 5.5 seconds. Average fuel consumption in the EU test cycle is 8.6 litres/100 km (provisional combined US figure approx 22 mpg), which is 0.8 litres better than on the former model with automatic transmission.

On the same fuel consumption, this is better even than the acceleration and consumption figures of the respective models with a six-speed manual gearbox: the hand-shifted version of the BMW 135i Coupe accelerates to 60 mph in 5.1, the manual-gearbox version of the BMW 135i Convertible in 5.4 seconds (0 -100 km/h on the Coupe in 5.3, on the Convertible in 5.6 seconds).

At the same time the combination of the BMW TwinPower Turbo engine with the manual gearbox also newly developed likewise enhances all-round efficiency by a significant margin. In practice, this means a reduction of average fuel consumption by the BMW 135i Coupe to 8.5 litres and a reduction on the BMW 135i Convertible to 8.6 litres/100 kilometres (provisional combined US figure for both models approx. 22 mpg).

Outstanding innovation for optimised efficiency: first-ever VALVETRONIC on a turbocharged engine.

The new straight-six power unit of the BMW 135i Coupe and the BMW 135i Convertible owes its exceptional efficiency to the first-ever combination of BMW TwinPower Turbo Technology, High Precision Injection, and VALVETRONIC valve management.

The turbocharger system following the twin-scroll principle separating the ducts for three cylinders at a time both in the exhaust gas manifold and in the turbocharger, as well as VALVETRONIC developed to an even higher standard of efficiency, contributes accordingly to the extremely spontaneous and direct response of the drivetrain.

This kind of technology allows infinite adjustment of valve stroke and valve timing on the intake valves. Throttle losses in the charge cycle are reduced to a minimum and the energy contained in the fuel is put to maximum use. In conjunction with High Precision Injection likewise optimised to an even higher standard, this offers an unparalleled balance of driving performance and fuel economy never seen before in this class.

The BMW 135i Coupe and the BMW 135i Convertible come as standard with a wide range of BMW EfficientDynamics technologies combined with one another in an appropriate symbiosis for each specific market, including features such as Brake Energy Regeneration, a gearshift point indicator on models with a manual gearbox, a map-controlled oil pump, final drive with optimised warm-up running qualities, as well as on-demand control of the engine's ancillary units such as the pressure-controlled fuel pump.

Enhanced dynamics, greater efficiency: new six-speed manual gearbox and optional seven-speed Double-Clutch Gearbox.

Both the BMW 135i Coupe and the BMW 135i Convertible come as standard with a newly developed six-speed manual gearbox. Optimised for maximum efficiency, this high-tech gearbox features dry sump lubrication significantly reducing drag forces and completely avoiding splash losses in the interest of even greater efficiency all round.

The seven-speed double-clutch gearbox with Sport Automatic featured for the first time in the BMW 1-Series makes an even greater contribution to the optimisation of driving characteristics in the spirit of BMW EfficientDynamics. The double-clutch gearbox improves both acceleration and the efficiency of these compact top-flight performers, at the same time combining this dual progress with the comfort features of a BMW automatic transmission. The seven-speed double-clutch gearbox shifts gears without the slightest interruption of power and torque and offers the driver the choice of either automatic transmission or a manual gearshift.

The fast and smooth shift of gears allows unusually harmonious acceleration and helps to reduce both fuel consumption and emissions. The close, sporting increments of the seven gears ensure that the optimum transmission ratio is always available in all situations.

A combination of dry sump and injection lubrication serves to further optimise the efficiency of the engine through a supreme level of oil supply.

Last but not least, the double-clutch gearbox is controlled with utmost convenience either through the newly designed gear selector lever or by gearshift paddles on the steering wheel.

BMW 135i Coupe and BMW 135i Convertible: outstanding performers in the compact segment and beyond.

The new six-cylinder with BMW TwinPower Turbo Technology and the seven-speed double-clutch gearbox bring out the unique character of these top performers in the compact segment even more and in greater style than ever before. Through their performance alone, the BMW 135i Coupe and the BMW 135i Convertible achieve the supreme standard of a very powerful sports car. And at the same time the driving experience conveyed by both models boasts the agility typical of a BMW 1-Series.

Superior drivetrain technology and a concept unique in this class with rear-wheel drive, the passenger cell moved far to the back, and almost ideal distribution of axle load, offer the optimum combination for unique driving pleasure.

Both models come as standard with a modified M Aerodynamics Package and M Sports Suspension. Other standard features include DSC Dynamic Stability Control with an individualised set-up, an electronically masterminded locking function on the differential, as well as model-specific control maps for Servotronic power steering and the gas pedal, again underlining the sporting character of both models.

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Audi A4 allroad quattro, 2010

Audi A4 allroad quattro, 2010

 

 With its permanent all-wheel drive and increased ground clearance, the Audi A4 can handle any road or trail; it also offers driving pleasure - even on unpaved surfaces. Naturally, the Audi A4 allroad quattro features all the innovative technologies which impart to the A4 model line its superiority: a range of powerful and highly energy-efficient engines, Audi drive select (intelligent handling technology), the high-tech S tronic transmission, and innovative communication and assistance systems. The vehicle will be available in early summer at a basic price of 37,100 euros.

The design of the Audi A4 allroad quattro recalls the Audi A4 Avant: crisp lines enclose tastefully curved surfaces and the low roof line establishes a coupé-like silhouette. Striking details re-interpret this model line's sporty elegance. The moon-gray single-frame radiator grille bears vertical chrome strips; an accentuated bumper and large air inlets underscore this vehicle's unique identity. Chrome rings encircle the fog lights. And in the option featuring xenon plus headlights, light-emitting diodes comprise the daytime running lights and taillights. Underneath the front end and tail end, the A4 allroad has a stainless-steel underbody guard.

Interior
Refined touches, uncompromising quality and flawless functionality: the interior of the Audi A4 allroad quattro embodies all the strengths for which Audi is renowned. The cockpit clearly serves the driver. Among the control unit's highlights: the standard electromechanical handbrake - which has replaced the lever on the center console with a button - and the central on-board monitor. A color display complements the concert or symphony sound system, or the MMI navigation system plus; the MMI's offset control unit is housed in the center console.

Customers can choose one of several different trim materials: an exclusive allroad fabric, two types of leather, or an Alcantara/leather combination. The fabric designs are available in two colors and the leather trim in seven colors (two of which feature sporty contrasting stitching). Standard inlays are micrometallic platinum; options include aluminum trigon, natural fine-grain ash, laurel nutmeg, and walnut brown. Carpeting is made of velour; the headlining is star silver, linen beige, or black (optional). Many of the operating controls gleam thanks to their standard aluminum look; the door sill trims bear special allroad logos.

The Engines
Audi will initially offer three different engines for the Audi A4 allroad quattro: a gasoline engine and two diesel engines. All three are turbocharged direct-fuel-injection engines. They command respect due to excellent performance, impressive pulling power, smooth running, and high fuel efficiency. The engines are further bolstered by pioneering technologies arising from Audi's modular efficiency expertise. For example, all three units boast a standard on-board recuperation system, which converts mechanical energy into electrical energy during deceleration.

The Driveline
The 2.0 TDI transmits its power to a six-speed manual transmission. The 3.0 TDI and 2.0 TFSI feature the next generation of Audi's dynamic and very efficient S tronic. This innovative dual-clutch transmission switches extremely smoothly among its seven gears within a few hundredths of a second. S tronic also excels thanks to its high efficiency ratio and a broad spread of the gear ratios. The seven-speed S tronic has a fully automatic mode at the ready: the driver can shift as required, if necessary via shift paddles on the steering wheel.

The differential is in front of the clutch and immediately behind the engine. This technical stroke of genius made it possible to reposition the front axle much closer to the vehicle's front end, in turn allowing for a long wheelbase and an ideal distribution of the axle loads. The benefits include steady straight-line stability, superb ride comfort, and excellent driving dynamics.

The Audi A4 allroad quattro features quattro permanent all-wheel drive as standard equipment. Its purely mechanical center differential favors the rear, distributing power at a 40:60 ratio to the front and rear axle. If necessary, the quattro permanent all-wheel drive can route up to 65 percent to the front or as much as 85 percent toward the tail end.

The Chassis
The width of the Audi A4 allroad quattro lays the foundation for its driving dynamics. The car's track is 1,583 mm (62.32 in.) at the front and 1,574 mm (61.97 in.) at the rear - some 20 mm (0.79 in.) wider, respectively, than the A4 Avant. The body is higher on account of a new chassis with longer springs, which - like the new shock absorbers - combine sportiness with comfort. The standard, 17-inch lightweight alloy wheels are fitted with 225/55 tires. At a diameter of 690 millimeters (27.17 inches), even this standard configuration looks rather imposing. For the time being, Audi is also offering 18-inch wheels.

The chassis in the Audi A4 allroad quattro retains all the advantages which distinguish the A4 model line. Steering is straightforward and responsive. A steering box beneath the wheel conveys the driver's input directly to the wheels. The five-link front suspension and the self-tracking trapezoidal-link rear suspension consist largely of aluminum to reduce unsprung weight. 16-inch brakes with excellent cooling behavior provide for rapid deceleration. It should come as no surprise that the Audi A4 allroad quattro offers sportiness, comfort, and stability - onroad and offroad. After all, it is an A4.

On rough terrain, the Audi A4 allroad quattro relies on a high-tech feature of its Electronic Stabilization Program (ESP): the Offroad Detection (ORD) technology automatically identifies the type of driving surface and adjusts the ESP's control parameters accordingly. When the driver depresses the gas pedal, ESP increases propulsive power by tolerating more wheel spin than otherwise. If necessary, it will override for a time in the interests of safety.

On paved roads, Audi drive select further enhances the joys of driving. This control system automatically and perfectly adapts the personality of the Audi A4 allroad quattro to the driver's preferences. Audi drive select namely evaluates the engine's throttle response, the Servotronic power steering, and S tronic's shift points in automatic mode. The driver can freely switch among three different engine maps: comfortable, standard, and sporty. And MMI navigation plus provides yet another on-board control option, and is individually programmable.

The Audi drive select can be paired with Audi dynamic steering. It consists of a superimposed gear system, and varies the steering ratio as well as steering assistance in a continuously variable manner. Audi drive select functions directly at low speeds and indirectly at high speeds. At the vehicle's cornering limit, the dynamic steering keeps the Audi A4 allroad quattro on course via split-second corrective actions - subsequently obviating extensive ESP intervention.

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Audi A1 e-tron Concept, 2010

Audi A1 e-tron Concept, 2010

 

 

The new e-tron model series from Audi will gain another new member at the 2010 Geneva Motor Show: The Audi A1 e-tron Concept is a Mega City Vehicle (MCV) with an innovative drive technology. It comes equipped with a powerful electric motor for zero-emission driving in the city. There is also an internal combustion engine on board that recharges the battery in exceptional circumstances. The Audi A1 e-tron Concept is very agile thanks to the 75 kW (102 hp) peak power of its electric motor.

The technology of the Audi A1 e-tron
The e-tron model family from Audi is just a few months old, but it already has a number of members, for each of which Audi has chosen a different drive technology. The first e-tron, which debuted at the 2009 IAA in Frankfurt/Main, is a near-series high-performance sports car with electric motors for all four wheels. The study shown at the Detroit Motor Show in 2010 is a lightweight, compact two-seater with two electric motors on the rear axle.

The Audi A1 e-tron Concept now presents another approach - a compact electric car in the premium class. The four-passenger, two-door MCV city car was designed specifically for use in the metropolitan areas of Europe and North America and in the rapidly growing megacities of Asia and South America. The Audi A1 e-tron always drives on electric power; its internal combustion engine is only used to recharge the battery in isolated cases.

The integration of the new technologies shows the holistic approach that Audi is pursuing with electric mobility. The objective is to use the energy with the lowest possible losses. The precise interaction of the components, their intelligent packaging, and the efficient management of the current flows are the product of the expertise that the company has developed in this area.

Audi has developed a proprietary thermal management system to keep the battery, the electric motor, and the power electronics within their respective ideal temperature windows.

Behind the three e-tron models is a broadly diverse and modular technology platform that continues to grow very rapidly as Audi drives development forward.

The electric motor: 75 kW (102 hp) peak power
The synchronous electric motor of the Audi A1 e-tron is mounted transversely at the front of the car. Its low mounting position has a positive effect on the vehicle's center of gravity. Continuous output is rated at 45 kW (61 hp), with peak power of 75 kW (102 hp) available in short bursts. 150 Nm (110.63 lb-ft) of torque is continuously available, and peak torque is 240 Nm (177.01 lb-ft).

The electric motor sends its power to the front wheels via a single-speed transmission. The elegant, retractable selector lever on the console of the center tunnel used to choose between "Drive," "Reverse," and "Neutral" was taken from the first Audi e-tron.

The power electronics are mounted in the engine compartment above the electric motor. The most important components are the pulse-controlled inverter, which serves as the controller between the electric motor and the battery; the DC converter, which connects the high-voltage network with the 14 volt electrical system; a breaker unit to protect the high-voltage components; and the charging module. The socket for the standard charging plug is located behind the rings in the single-frame grille of the Audi A1 e-tron. A fully depleted battery can be recharged in approximately three hours from the 380 volt grid. A display immediately adjacent to the plug-in connection shows the current charge status and the charging time remaining.

The concept of the innovative Mega City Vehicle requires the electrification of key auxiliaries. The refrigerant compressor of the climate control system, for example, is electrically powered by a high-voltage electric motor that supplies only the amount of power needed at the time.

This increases system efficiency substantially compared to conventional concepts. Thanks to a special circuit, the climate control loop also functions as a heat pump that regulates the temperature of the cabin and the battery.

The power steering of the Audi A1 e-tron is electro-mechanical and thus particularly energy-efficient. An electronic brake system makes it possible to tap into the recuperation potential of the electric motors. A hydraulic fixed-caliper brake is mounted on the front axle, with two novel electrically-actuated floating-caliper brakes mounted on the rear axle. These floating calipers are actuated not by any mechanical or hydraulic transfer elements, but rather by wire ("brake by wire"). In addition, this eliminates frictional losses due to residual slip when the brakes are not being applied. In addition, the servo unit received a new, demand-controlled electric vacuum pump.

The large electric motor powering the Audi A1 e-tron Concept can convert braking energy into electric current and feed it back into the electrical system. The high degree of recuperation benefits overall efficiency. The electric control actions are imperceptible to the driver, who notices only the familiar, precise, and perfectly controllable pedal feel.

The battery pack: a compact T arranged below the floor
The energy storage unit is arranged below the floor, where it is ideal for the center of gravity and weight distribution. The battery pack is shaped like a T, with the short "transverse beam" filling the rear section of the center tunnel and the "cross-beam" filling that area in front of the rear axle where the fuel tank is otherwise located. The 380 volt lithium-ion rechargeable battery has a nominal energy content of 12 kilowatt hours. It comprises 96 prismatic cells and weighs less than 150 kilograms (330.69 lb).

The Audi A1 e-tron can drive 50 kilometers (31.07 miles) emission-free in city traffic on the powerful battery. On longer trips, the battery is recharged by a particularly compact internal combustion engine mounted below the luggage compartment.

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Audi e-tron Concept, 2009

Audi e-tron Concept, 2009

 

 

 Audi presents the highlight of the IAA 2009: the Audi e-tron Concept, a high-performance sports car with a purely electric drive system. Four motors - two each at the front and rear axles - drive the wheels, making the concept car a true quattro. Producing 230 kW (313 hp) and 4,500 Nm (3,319.03 lb-ft) of torque, the two-seater accelerates from 0 to 100 km/h (0 - 62.14 mph) in 4.8 seconds, and from 60 to 120 km/h (37.28 - 74.56 mph) in 4.1 seconds. The lithium-ion battery provides a truly useable energy content of 42.4 kilowatt hours to enable a range of approximately 248 kilometers.

The performance figures are by no means the only evidence of the consistent and holistic strategy. The design makes it clear that the Audi e-tron Concept belongs in the major leagues of sports cars, and the package takes into account the specific realities of an electric vehicle. The battery is directly behind the passenger cabin for an optimal center of gravity and axle load distribution.

The Audi e-tron Concept is able to freely distribute the powerful torque of its four electric motors to the wheels as required. This so-called torque vectoring allows for dazzling dynamics and an undreamed-of level of agility and precision when cornering.

Audi has taken a new and in some cases revolutionary approach to many of the technical modules. A heat pump is used to efficiently warm up and heat the interior. The drive system, the power electronics and the battery are controlled by an innovative thermal management system that is a crucial component for achieving the car's range without compromising its high level of interior comfort. Networking the vehicle electronics with the surroundings, which is referred to as car-to-x communication, opens new dimensions for the optimization of efficiency, safety and convenience.

The Concept
Electric drive systems are still very much outsiders. The first vehicles of this type took to the roads around 1900, yet in 2009 no volume car manufacturer has a car powered exclusively by batteries in its lineup. Fewer than 1,500 electric vehicles are currently registered in Germany, corresponding to only 0.035 percent of all registered vehicles.

Yet electric driving potentially offers numerous advantages. Electric cars reduce the dependence of transportation and the economy on the raw material petroleum. They produce no direct exhaust emissions and thus ease the local burden on the environment. Electric drive systems are also significantly more efficient than combustion engines, consequently making them easier on the customers' wallets. Other strengths include sportiness and the fun they bring to driving. All of the torque is essentially available the moment the driver steps on the accelerator, allowing for breathtaking acceleration.

There is still a lot of work to do before electric cars are ready for volume production, however. The greatest challenge is the integration of the energy storage system. Acceptable range and performance requires a traction battery that is heavy and takes up a lot of space. Audi is taking a new approach to offset these disadvantages - a holistic approach with a specific vehicle package, a systematic lightweight construction concept and an optimal configuration of all components for the electric drive.

Audi e-tron Concept - The Holistic Approach
The most important development related to batteries for electric drives are lithium-ion cells. Numerous experts throughout the world are working on their further development for use in cars, with the primary objectives being to reduce weight and increase capacity and performance. Audi has also opted for this technology, both for use in a hybrid production vehicle, such as the upcoming Q5 hybrid, and in the e-tron test platform.

The requirement specification for the concept vehicle goes far beyond battery technology and the replacement of the combustion engine with an electric drive system, however. The Audi development engineers decided back in the concept phase to design practically every component and technology based on the new requirements of electric mobility. The interaction of all elements has a decisive influence on the factors efficiency, range and practicality.

The Audi team therefore focused its attention on the total vehicle, which is reflected in the comprehensive requirement specification.
    * The reduction of road resistances and the resulting increase in range plays a major role with electric vehicles. Lightweight construction was therefore a top priority for the Audi e-tron Concept car. The body, in particular, combines low weight with supreme strength and rigidity. An intelligent aerodynamics concept with active elements helps to reduce consumption.
    * The package ensures the safe integration of the electric drive system and the battery. Placing the battery in front of the rear axle ensures an optimal axle load distribution without compromising the compact overall design and the generous amount of interior space.
    * Advanced battery technology enables a practical range. The battery system is water-cooled for optimal performance and service life.
    * A needs-based energy management system controls all functions for the chassis, convenience equipment and other auxiliary consumers.
    * The innovative thermal management system with optimally matched cooling and heating components considers the cooling requirements of the battery and the drive system in addition to the interior temperature.
    * Driving dynamics and road comfort are what Audi customers have come to expect in the sports car segment.
    * Vehicle safety is on par with the best of today's production vehicles.
    * The driver is provided with clear and comprehensive information.
    * The Audi e-tron Concept car uses car-to-x communication technology developed by Audi to improve the efficiency of conventionally powered vehicles. For example, information about traffic light cycle times and the flow of traffic - provided by the infrastructure and other vehicles - is used to compute an optimal driving strategy. Audi has already modeled such a solution in Ingolstadt as part of its "travolution" project.

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GMC Terrain, 2010

GMC Terrain, 2010

 

 

The GMC Terrain is a five-passenger crossover SUV that blends bold styling with fuel efficiency and premium features.

A new, 2.4L four-cylinder engine that features direct injection is expected to deliver best-in-segment highway fuel economy of 30 mpg. Maximum fuel economy is achieved in part with an "ECO" mode that is activated via a console-mounted button. When engaged, it lowers the torque converter lockup speed to 1,125 rpm to help save fuel on models equipped with the 2.4L engine.

With front-wheel-drive and all-wheel-drive models offered in SLE and SLT trim levels. The comprehensive purposeful technologies such as:
    * Standard rear vision camera
    * Programmable power rear liftgate
    * Bluetooth hands-free phone capability
    * MultiFlex sliding rear seat that increases passenger comfort or provides optimal       cargo space
    * Remote vehicle start
    * USB audio connectivity; MP3 playback
    * Seven-inch touch-screen navigation system and a 40-gigabyte hard drive
    * DVD-based rear-seat entertainment system with two independent screens
    * Standard OnStar and XM Satellite Radio

Segment-best safety is anticipated, with features that include four-wheel disc brakes with StabiliTrak electronic stability control and traction control, as well as six standard air bags: dual frontal air bags; head curtain side air bags and pelvic/thorax seat-mounted side air bags. OnStar with one-year Safe and Sound service is also standard.
Bold styling
GMC Terrain has a balanced, athletic stance and offers a commanding view of the road. Its design is characterized by bold, muscular fender flares, representing GMC's aesthetic. Surfacing is angular yet refined, with a strong and capable front-end appearance that features precise, squared-off edges.
The additional design features include a unique, three-element grille that is accented by a prominent chrome surround and projector-beam headlamps mounted in large, rectangular housings with chrome accents.
The interior details and flexibility

The GMC Terrain's rich, premium interior is influenced by industrial sculpture and exudes refinement exemplified by contrast stitching and fine materials that create a structured look throughout the cabin. A "floating" center stack, highlighted by warm ambient lighting, houses a multitude of ergonomic comfort and convenience controls.
The GMC Terrain also features great attention to detail, with smart use of storage space and compartments that are suitable for a variety of items. They include an oversized glove box; a closed storage area in the instrument panel above the center stack; a closed storage compartment under the center armrest large enough for a laptop computer; and two-tier storage in the doors.
GMC Terrain's seats were developed to provide outstanding comfort and the standard MultiFlex sliding rear seat can be moved fore or aft nearly eight inches (200 mm), providing increased passenger comfort or greater rear cargo capacity. The 60/40-split rear seatback offers additional configurations for passengers and cargo; and the rear cargo area offers 31.6 cubic feet (894 liters) of storage, as well as one of the GMC Terrain's four auxiliary power outlets. The Confident and agile driving experience.

Two new engines are offered on all GMC Terrain models, each with fuel-saving direct injection and variable valve timing technology. Vehicle highlights include:
    * New 3.0L DOHC direct injected V-6 engine estimated at 264 horsepower (197 kW), which       delivers an estimated 25 mpg highway, 18 mpg city (EPA certification pending).
    * New 2.4L Ecotec direct injected I-4 engine estimated at 182 horsepower (136 kW) that       delivers an estimated 30 mpg highway, 21 mpg city (EPA certification pending)
    * Driving range of more than 500 miles (800 km) with both engines, for less-frequent       fill-ups
The powertrains are mounted on a rigid, body-integral structure, with single-piece body side stampings and targeted applications of high-strength steel. It is the foundation of a confident driving experience that is both smooth and responsive.
GM's first application of Active Noise Cancellation (ANC) technology is used on 2.4L-equipped models. ANC uses microphones to detect booming sounds inside the vehicle and sends counteracting sound waves through the audio system's speakers, ensuring a quiet driving experience at almost all vehicle speeds.
The GMC Terrain rides on a 112.5-inch (2,857 mm) wheelbase and features a four-wheel independent suspension system, with wide front and rear tracks that enhance the ride and handling. A family of 17-inch, 18-inch aluminum and 19-inch chrome-clad wheels is available.
GMC Terrain's rack-mounted electric power steering system provides greater fuel efficiency on four-cylinder-equipped models, saving nearly 11 miles per tank of gas.

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GM EN-V Concept, 2010

GM EN-V Concept, 2010

 

 

 

 

By 2030, urban areas will be home to more than 60 percent of the world's 8 billion people. This will put tremendous pressure on a public infrastructure that is already struggling to meet the growing demand for transportation and basic services.

General Motors and its strategic partner, Shanghai Automotive Industry Corp. Group (SAIC), share a common vision for addressing the need for personal mobility through a radical change in personal urban transportation. They are exploring several solutions for tomorrow's drivers. Among the most promising is a new vehicle form called EN-V.

A Promising Solution
EN-V, which is short for Electric Networked-Vehicle, maintains the core principle of personal mobility - freedom - while helping remove the motor vehicle from the environmental debate and redefining design leadership. EN-V is a two-seat electric vehicle that was designed to alleviate concerns surrounding traffic congestion, parking availability, air quality and affordability for tomorrow's cities.

Three EN-V models were unveiled in Shanghai. They represent three different characteristics that emphasize the enjoyable nature of future transportation: Jiao (Pride), Miao (Magic) and Xiao (Laugh). The concepts will be showcased from May 1 through October 31 at the SAIC-GM Pavilion at World Expo 2010 Shanghai. Shanghai is expected to become one of the epicenters for the establishment of personal mobility solutions for the future.

Breakthrough Technology
GM EN-V Concept's platform has evolved from the platform of the Personal Urban Mobility and Accessibility (P.U.M.A.) prototype that was developed by Segway and debuted in April 2009. Segway has worked collaboratively with GM to develop and deliver multiple copies of the drivetrain platform that seamlessly connect to and power the various EN-Vs.

GM EN-V Concept is propelled by electric motors in each of its two driving-mode wheels. Dynamic stabilization technology empowers EN-V, giving it the unique ability to carry two passengers and light cargo in a footprint that's about a third of a traditional vehicle. It can literally "turn on a dime" within its own operating envelope. In addition, everything in EN-V is drive-by-wire, supporting its ability to operate autonomously or under manual control. The motors not only provide power for acceleration, but also bring the vehicle to a stop.

Power for the motors is provided by lithium-ion batteries that produce zero emissions. Recharging can occur from a conventional wall outlet using standard household power, allowing EN-V to travel at least 40 kilometers on a single charge. EN-V can also improve the efficiency of the public electric infrastructure since the vehicle can communicate with the electric grid to determine the best time to recharge based on overall usage.

By combining the Global Positioning System (GPS) with vehicle-to-vehicle communications and distance-sensing technologies, the EN-V concept can be driven both manually and autonomously.

Its autonomous operating capability offers the promise of reducing traffic congestion by allowing EN-V to automatically select the fastest route based on real-time traffic information. The concept also leverages wireless communications to enable a "social network" that can be used by drivers and occupants to communicate with friends or business associates while on the go.

This combination of sensing technology, wireless communication and GPS-based navigation establishes a technology foundation, pieces of which could migrate from the EN-V concept and potentially lead the way to future advanced vehicle safety systems.

The ability to communicate with other vehicles and with the infrastructure could dramatically reduce the number of vehicle accidents. Using vehicle-based sensor and camera systems, EN-V can "sense" what's around it, allowing the vehicle to react quickly to obstacles or changes in driving conditions. For example, if a pedestrian steps out in front of the vehicle, EN-V will decelerate to a slower and safer speed and stop sooner than today's vehicles.

GM has been a leader in developing autonomous vehicle technology, having worked alongside students and faculty at Carnegie Mellon University in the U.S. city of Pittsburgh, Pennsylvania. This collaboration created "The Boss" Chevrolet Tahoe, which brought autonomous vehicle operation to life in 2007. EN-V takes the lessons learned in "The Boss" and offers mobility to people who could not otherwise operate a vehicle.

"The EN-V concept represents a major breakthrough in the research that GM has been doing to bring vehicle autonomy to life," said Alan Taub, Global Vice President of GM Research and Development. "The building blocks that enable the autonomous capabilities found on the EN-V concept such as lane departure warning, blind zone detection and adaptive cruise control are being used in some GM vehicles on the road today."

GM EN-V Concept has been designed for the speed and range of today's urban drivers. It weighs less than 500 kilograms and is about 1.5 meters in length. By comparison, today's typical automobile weighs more than 1,500 kilograms and is three times as long. In addition, today's automobiles require more than 10 square meters of parking space and are parked more than 90 percent of the time. EN-V's smaller size and greater maneuverability mean the same parking lot can accommodate five times as many EN-Vs as typical automobiles.

Smaller, Smarter Design
While EN-V leads the way in terms of efficiency and technology, it also sets a new benchmark for vehicle design. For its debut, GM had design teams around the world provide their vision of what future mobility will look like. Xiao (Laugh) was designed by GM Holden's design team in Australia, while the look of Jiao (Pride) was penned by designers at GM Europe and Miao (Magic) was designed at the General Motors Advanced Design Studio in the U.S. state of California.

Each EN-V has a unique design theme to showcase the flexibility of the propulsion platform. The design gives each EN-V its own personality, with a unique opening, elegant interior and innovative color, lighting and seat technology. Xiao offers a more lighthearted appeal, with its "gumball blue" paint and nautical-inspired design. Miao takes most of its design cues from the consumer electronics industry, as evidenced by its sleek, masculine looks. Designers also used Miao to display innovative lighting solutions, including extensive use of LED accent lighting. With its clean lines and bright paintwork, Jiao takes its design influence from bullet trains and Chinese opera masks.

The body and canopy of GM EN-V Concept are constructed from carbon fiber, custom-tinted Lexan and acrylic, materials that are more commonly used in race cars, military airplanes and spacecraft because of their strength and lightweight characteristics. The ability to work with such innovative materials provided a learning opportunity for GM's design teams to study the feasibility of future traditional automotive applications.

EN-V's compact size makes it ideal for use in densely populated cities thanks to its use of advanced safety and propulsion technologies. But good things come in small packages, as witnessed by EN-V's innovative interior design, which provides maximum visibility to the world outside. A simple interface for activating Wi-Fi-based technologies keeps occupants connected to the outside world.

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GM PUMA Concept, 2009

GM PUMA Concept, 2009

 

Dubbed Project P.U.M.A. (Personal Urban Mobility and Accessibility), GM and Segway are developing an electrically powered, two-seat prototype vehicle that has only two wheels. It could allow people to travel around cities more quickly, safely, quietly and cleanly - and at a lower total cost. The vehicle also enables design creativity, fashion, fun and social networking.

GM and Segway announced their collaboration, while demonstrating the Project P.U.M.A. prototype in New York City.

Trends indicate that urbanization is growing, and with that comes increased congestion and more competition for parking. Cities around the world are actively looking for solutions to alleviate congestion and pollution. Project P.U.M.A. addresses those concerns. It combines several technologies demonstrated by GM and Segway, including electric drive and batteries; dynamic stabilization (two-wheel balancing); all-electronic acceleration, steering and braking; vehicle-to-vehicle communications; and autonomous driving and parking. Those technologies integrate in Project P.U.M.A. to increase mobility freedom, while also enabling energy efficiency, zero emissions, enhanced safety, seamless connectivity and reduced congestion in cities.

Project P.U.M.A. vehicles will also allow designers to create new fashion trends for cars, and to focus on the passion and emotion that people express through their vehicles while creating solutions that anticipate the future needs of urban customers.

The Project P.U.M.A. prototype vehicle integrates a lithium-ion battery, digital smart energy management, two-wheel balancing, dual electric wheel motors, and a dockable user interface that allows off-board connectivity. The result is an advanced and functional concept that demonstrates the capabilities of technology that exists today.

Built to carry two or more passengers, it can travel at speeds up to 35 miles per hour (56 kph), with a range up to 35 miles (56 km) between recharges.

Since the introduction of the Segway Personal Transporter (PT), Segway has established itself as the leader in the small electric vehicle space. Its approach to congestion and environmental challenges is balanced with a strong understanding of the functional needs of its customers, enabling them to do more with less. Segway has delivered more than 60,000 lithium-ion batteries to the market.

GM has been a leader in "connected vehicle" technologies since it introduced OnStar in 1996. Today, this on-board communications package connects six million subscribers in North America to OnStar safety and security services. GM has also pioneered vehicle-to-vehicle (V2V) communications systems and transponder technology. These and additional connected vehicle technologies could ultimately enable vehicles that don't crash and drive themselves.

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