Audi Metroproject

13Nov07

Audi Metroproject Concept Car Audi A1

Audi Metroproject

The 1.4 liter TFSI engine sends 150 bhp to the DSG transmission. Whereas the 1.4 TFSI musters 125 bhp in the A3, it delivers 150 bhp at 5,500 rpm in the study. Its peak torque of 240 Nm is on tap from 1,600 to 4,000 rpm.

The electric motor positioned on the rear axle transforms the front-wheel-drive car to a quattro.
Lithium-ion batteries ensure up to 100 km of zero-emission driving. When the tailgate is opened, the electric motor capable of 41 hp is lit like the R8’s engine.

The automatic start/stop facility and energy regeneration reduce the fuel consumption and emissions by around 15 percent. The study uses just 4.9 liters of premium fuel for every 100 km, while CO2 emissions average a mere 112 g/km. Still the Audi Metroproject Quattro manages a top speed of 201 km/h and accelerates from 0 to 100 km/h in 7.8 seconds.

The vehicle body painted in Racing Red and coupe-like roof line produce a virtually classic look. The side-on view presents another typical coupé attribute in the form of frameless doors and the lack of a B-pillar. Tracing the roof’s silhouette are two aluminum arches emphasising the dynamic appeal. The tail is rounded off by a spoiler integrated into the rear window.

Audi’s trademark grille has a little chequered-flag that stands for sporty temperament, further underlined by the aluminium finish on elements such as the grille, mirror housings, door handles, fuel filler cap and tailpipes.

Three-dimensional main headlights in innovative LED technology. Reflectors focus the light emitted by each diode to create a powerful, uniform beam whose white light colour barely places any strain on the driver’s eyes, even when driving for long distances at night.

The daytime running lights are also based on LED technology, which promises extra-low energy consumption in addition to its design benefits.

The two-tone multipiece wheels that have been embellished by the addition of V-shaped polished aluminium elements lend further emphasis to the vehicle’s sportiness and exclusiveness.

Audi Metroproject Audi A1 Concept Car

The wraparound tailgate joins the sides with the tail. The sculpture-like tail lights with their three-dimensional glass lens design extend far into the vehicle’s flanks. The luggage compartment itself holds a respectable 240 liters.

The body of the Audi metroproject quattro makes optimum use of the modest-sized footprint of a premium compact-class car. Measuring 3.91 m long and 1.75 m wide with a wheelbase of 2.46 m, it succeeds in combining sporty looks with impressive economy of space thanks to its short overhangs.

The transverse installation of the engine also has a significant role to play in this respect. Meanwhile, the vehicle’s height of 1.40 m means there is plenty of headroom in the rear too.

The interior features four individual seats. The curving wrap-around element merges the doors and the sporty cockpit into a single whole. The dashboard and centre console are designed entirely around the driver. The instrument cluster shroud, the wraparound and the centre console are trimmed in a contrasting colour. Details such as the air vents and air conditioning controls seem to be straight out of a jet plane. The round dials and the air vents, which are also circular, are reminiscent of a classic sports car cockpit à la Audi TT.

The aluminium insert in the centre console comprises the Audi mobile device as well as the start/stop button behind the gear lever. In the rear portion of the centre console can be found a thermos flask featuring an innovative cooling and heating system.

The sporty seats with integrated head restraints offer levels of comfort and ergonomics that far exceed the customary standards in the sub-compact class and live up to the expectations of a typical Audi. The contrasting colour scheme featuring dark panels and red stitching adds substance to the car’s overall sporty character.

The centre console houses a new, innovative technology: the removable Audi mobile device. This portable unit functions as an access authorisation system for the vehicle, mobile phone, navigation unit and audio and video player all in one. Plus, the mobile device offers the entire range of functions and exact same menu navigation as the MMI system. This allows the driver to use the compact device as an MP3 player, for example, or as an address database and input tool for the navigation system. What’s more, he can switch on the vehicle’s heating if required and program the sound system to suit his personal preferences, all from the comfort of his own home.

The unit is operated using a touchscreen, and is even able to decipher handwriting. The Audi mobile device and vehicle communicate via a WLAN connection.

The Audi mobile device also offers the vehicle owner an extra security function: images from a camera in the vehicle interior can be received on the device’s display in real time. If the vehicle alarm is triggered, the system activates itself and warns the owner. Should the vehicle be stolen and move out of the WLAN connection’s range, the electronics automatically switch to the car phone’s UMTS transmitter to keep the owner informed of the vehicle’s current location.

The MMI control unit is an advanced version of the tried-and-trusted MMI design whose haptics make it easier to operate whilst on the move. Grouped around the central control button are four fixed-function hardkeys for the Navigation, Telephone, Car and Media basic menus. Four additional, backlit softkeys have variable functions which change within the individual menus.

The projected softkey labels combine with the bold softkey colours that identify the corresponding menus to ensure swift, intuitive user orientation.

The system’s display seems relatively small at just 1.5 inches high. This is because all system information additionally appears in the central display in the instrument cluster. The instrument cluster has a hybrid design, featuring both TFT modules as well as analogue gauges for the large speedometer and rev counter dials.

The Audi metroproject quattro is equipped with the same Audi drive select system that can be ordered as an option for the current generation of the Audi A4. This enables the driver to pre-select one of two specially adapted configurations for the drivetrain, shift characteristics and magnetic ride shock absorbers.

The default setting is the “efficiency” mode, which is automatically activated every time the engine is started. In this mode, the engine and transmission respond gently to use of the accelerator and shift paddles. This setting is ideal for a relaxed driving style, as well as offering tremendous potential for low fuel consumption and emissions.

In the “efficiency” mode, the electric motor is not deployed as a source of additional torque; instead it is run selectively as the sole power source to bring about a tangible reduction in consumption.

Thanks to the navigation system’s ability to detect differences in altitude along the route, regeneration phases as well as the increase in energy requirements on inclines can be computed before the journey has even started.

On predefined routes with access to a mains power socket at the destination, the Audi metroproject quattro can cover distances of up to 100 kilometres running purely on electrical power – and swiftly to it is capable of reaching a speed of more than 100 km/h. The combustion engine only cuts in again once battery capacity has dropped to below 20 percent of maximum.

The “dynamic” mode is designed to produce the dynamic yet comfortable driving sensation. In this mode, the vehicle’s electronics also harness the torque available from the electric motor to achieve extra-sporty acceleration along with excellent lateral dynamics.

Characteristic Audi sportiness plus a whole new dimension in efficiency – it is all down to the novel combination of a state-of-the-art turbocharged FSI engine with an electric motor and innovative control electronics.

The integrated turbocharger promises optimised responsiveness and harmonious torque build-up. 80 percent of peak torque can be summoned up from 1,250 rpm, barely above idling speed.

Power transmission to the front wheels is the task of the sporty Audi S-tronic Direct Shift Gearbox. It allows drivers to make lightning-fast gear changes, without a clutch pedal and without any interruption in the power flow. Gearshifts can also be fully automated if desired. If drivers wish to change gear manually, they can do so by using the shift paddles mounted on the steering wheel. Reverse and Park, meanwhile, are engaged using the shift lever knob on the centre console.

When running on the combustion engine alone, drive power is delivered to the study’s front wheels. If it is being propelled purely by the electric motor, on the other hand, the vehicle is transformed into a rear-wheel-drive car.

When the two drive units are working in unison, however, the Audi metroproject is transformed into a genuine quattro and can count on all the benefits of four-wheel-drive system. This helps to harness the high torque of 440 Newton metres in total – 240 Nm from the 1.4 TFSI plus an extra 200 Nm from the electric motor.

The braking energy released during deceleration phases is transformed back into electrical energy instead of it being released as heat and wasted.

Thanks to intelligent control of the two drive units, energy regeneration as well as the automatic start/stop facility, fuel consumption drops by around 16 percent compared to a vehicle running on the petrol engine alone. Although the components of the electric motor add around 70 kilograms to the overall weight, the study still only burns 4.9 liters of premium fuel per 100 km in mixed mode, while CO2 emissions average just 112 g/km.

“Refuelling” the Audi metroproject quattro from power sockets alone, therefore, produces an unequivocal result: even allowing for the relatively high domestic electricity costs in Germany, it is still possible to achieve a saving of around 70 percent compared to the price of premium fuel.

The second fundamental ingredient for outstanding handling dynamics is supplied by the sophisticated chassis design, comprising McPherson front suspension and four-link independent rear suspension. Large 18-inch wheels with size 225/35 R18 tyres boost both driving pleasure and safety.

The dynamic chassis is tuned for sporty, agile handling combined with excellent stability, and makes cornering a particular delight. What’s more, the chassis excels with a level of ride comfort befitting of higher vehicle classes.

The braking system with its large-diameter discs (measuring 312 mm across at the front wheels) is more than a match for the drive power. Bred on the racetrack, the system promises outstanding, fade-free stopping power.

The electromechanical steering with speed-sensitive power assistance is also a boon for agile handling. The system boasts optimum steering feel combined with low sensitivity to road surface excitation and a considerable reduction in energy consumption.

The specific strengths of the four-link suspension stem from the way in which it splits the functions for absorbing longitudinal and lateral forces. This permits a high level of lateral rigidity on the one hand for optimum dynamism and driving safety, while offering a great degree of longitudinal flexibility on the other to improve ride comfort.

The shock absorbers deploy a highly innovative technology in the form of Audi magnetic ride, which has already made its mark in the Audi R8 high-performance sports car and in the TT. Here, the conventional shock absorber fluid is replaced by a magneto-rheological fluid whose viscosity can be controlled by means of an electromagnetic field. This effect allows the damping characteristics to be adapted electronically at any time by energising the electromagnets.

Audi magnetic ride capitalises on this quality to make the appropriate damping forces available in any driving situation, thereby optimising both ride comfort and performance dynamics. A computer linked up to a system of sensors interprets the current driving situation with split-second speed. At the same time, drivers are able to choose between two different drive modes, depending on whether they wish to have a distinctly sporty drive – with the magneto-rheological fluid at a low viscosity – or a more comfort-oriented ride.

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