Selasa, 24 Januari 2012

Audi urban concept 2011

Audi sets out on new paths - the technology concept study, Audi is a 1 +1 seater urban vehicle for urban agglomerations. The electrically driven show car has four wheels, but it will fit any common automotive category. The Audi urban concept, which weighs only 480 pounds, brings elements of a racing car, a roadster, a car and a fun city cars together to form a radical new concept. He has the potential to become a trendsetter for a new mobility to be. 

 This vehicle is a prototype and can not be bought!

"How much car is needed to achieve urban mobility and driving pleasure to a whole new way?" This question was the starting point for the Audi urban concept. During the development work was the model of a glider in the design studio - as a model for lightweight, efficiency and reduction, to the principle "less is more". The result is a vehicle that does not fit any conventional thinking drawer - a vehicle that redefined the concept of driving fun and completely free of ballast.  The Audi urban concept focuses on the pure essence of riding, he gives freedom to a premium level.

He also offers the comfort and safety of a closed car - so he is far superior to any scooter. The engineering study, with its sleek body design and the exposed wheels is progressive and highly emotional, but also decidedly sporty and surprisingly comfortable. Two people can easily put together in the cabin of the Audi concept urban space. The roof can be opened by sliding. This innovative solution enhances driving pleasure, because the dome when the weather en route to remain open, it also allows a very quick breather. The finish of the show car has that perfection is the requirement for Audi. And his art reflects the full competence against the mark, especially the ultra-lightweight construction.  

Urban concept with the Audi opens up the brand with the four rings is an entirely new class of vehicle - at a premium level. At the same time Audi completes its range of future electric vehicles, which with the high-performance sports car R8 e-tron starts at the bottom. The Audi urban concept makes getting into the electric mobility easy - in the true sense of the word. The engineering study is aimed at people who are interested in technology and a passion for new forms of mobility, regardless of their age and status. He especially appeals to urban audiences that fits their lifestyle to a modern concept and the associated driving pleasure as well as a possible innovative leasing system.  The urban design of the Audi concept fundamentally new, but has some historical roots - in the Auto Union racing cars of the 30s.

Already they were conceptually far ahead of their time - they built ultra-light, their engines were mounted in the rear. And the big wheels were outside of the chassis in the room, another parallel. The Electro-painted in white pearl effect study of technology today - 3,219 millimeters long, 1678 millimeters wide, but only 1189 mm high - has a body, pushing on all the lines to the front. The greenhouse is built extremely flat, the wedge-shaped roofline runs down, while the side windows upincreases. Audi's typical urban contours give the concept a strong shoulder.  Accentuated in front of the rear wheel with an upright, forward inclined blade, the side view. The Speedrot painted contour looks like a roll bar, reminiscent of the high-performance sports car Audi R8.

Run down the flanks of wide body - that increases the floor area, which has two important functions: it generates downforce at higher speeds, and they can be used to charge the battery by induction - a very comfortable process.  The brand-typical single-frame grille bearing the four rings will appear on the Audi urban concept of a closed surface. They can be folded forward and then releases the charging port. The narrow LED headlamps are pulled out of the plastic body. The turn signals undergo an LED light conductor strips on the fenders. The panels rotate the wheels detached closely, the front when driving a beat with them. The plastic-designed rear lights with tail light and brake light integrated into the vehicle body and rotate the rear window at the top. The rear end conceals a small storage room, and he will wind up like a drawer.  The anterior segment of the glass house is designed to be movable - and this is an innovative idea, the concept of urban Audi has completely on their own. Mounted on rails, it can be pushed by hand to the rear, while it slides over the rigid posterior segment.

To drive, you can leave the roof open or close, as you wish. The engineering study is a Roadsters on demand - it does not need a retractable wheels and without a significant air-conditioning, closed the dome offers protection against rain and cooler air. As an alternative to urban concept with sliding roof, Audi has developed a second body variant - a Spyder with a flat, circular band of windows and with doors which open obliquely upwards.  The introduction to the concept occurs in urban Audi pushed back roof. Driver and passenger climbed over the curb in a tub - doors do not exist. Great agility is not required, a handle on the frame of the windscreen and special sections on the seating surfaces make boarding easier.  The show car provides two passengers. The driver and passenger sit side by side - the right seat is 30 inches back to provide enough clearance for the shoulders and arms remain. The two-seat pedestals are an integral part of the monocoque, which saves a large amount weight. They wear foam layers, which are made according to the dimensions of the customer - just like a race car.

The belts run through cutouts in the backs. The seat of the Audi urban concept is a bit like an aircraft cockpit, the position is very sporty. The driver can be adjusted to suit-aluminum pedals and the steering column. Both components can be moved in length to the pedals by 22 centimeters, the steering column for the entry 14 and also for the individual adjustment by 6 inches.  The steering column is exposed in the room - a strong, open profile in the center in an elegant design, almost horizontally mounted. On her back she carries a display of important messages. The steering wheel, small and hexagonal, integrated buttons and rollers to operate, with him, it is also the Audi drive select driving modes, the electric drive control. The whole interior of the art study is the strict dictates of the ultra-lightweight design subject. Runs under the Windshield a strong, also in the middle of open wing profile across the interior - a new instrument panel blank, it carries a satellite operator for the heatingand two large air vents.  Instead of a carpet mat covers a novel parts of the floor - originally developed in the sports shoe sector technical textile that repels water and is very durable. The seats are covered with cloth, on the edge of the foam pads trimmed with kangaroo leather. On-board tool set aluminum trim accents.  Also, the technical concept, the Audi is urban concept without precedent. The outer skin of the show car is made of carbon fiber-reinforced plastic (CFRP), the cell is it is a mix of a carbon fiber monocoque and aluminum structure.

This ultra-lightweight design lays the foundation for the extremely low curb weight of the engineering study of just 480 kilograms. The sophisticated suspension underscores the distinctive sporting character of the Audi urban concept. Wishbone, manufactured in a material combination of aluminum and carbon fiber lead to free-standing 21-inch wheels. Made in the so-called cladding technology, the wheels are very easy to build, their design varies the lamellar appearance of the Audi e-tron models. The tire size is as unusual as the whole car - it is 125/60 front and 145/50 rear.  The urban concept, the pushrod Audi uses technology from motor racing - as in a race car are its spring legs, inside of the monocoque placed almost horizontally. Four disc brakes take over the delay. The turning circle is less than nine meters - ideal for a city car. The rack and pinion needs thanks to the low vehicle weight of no power assistance. Deformation zones front and rear, and two air bags provide high level of passive safety. A novel assistance system helps the driver avoid collisions with pedestrians.  The battery is located, mounted transversely behind the seats. The lithium-ion battery that stores about 90 pounds in weight, 7.1 kWh of energy, of whom 5.7 kWh are available for disposal. The two electric motors of the study co-produce 15 kW (20 hp) continuous power and 47 Nm of torque. They sit between the rear wheels and drive it to a single-stage gear.  

The urban concept Audi accelerates in 16.9 seconds from zero to 100 km / h, 60 km / h are reached after about six seconds. With the torque of electric motors, which is available from the prior, the showcar sprints dynamic going on at the traffic lights. Its top speed is limited to 100 km / h. The radius is 73 km in the European driving cycle, the battery is at 400 volt AC in about 20 minutes later fully loaded with 230-volt household current in about an hour.  Instead of loading at the outlet is working intensively on the future of Audi charging technology. The term Audi Wireless Charging (AWC) is the non-contact charging by induction. The so-called infrastructure side, consisting of a coil and an inverter (AC / AC converter), the urban park on the root of the Audi concept placed and connected to the grid. The primary coil which is embedded in the plate, generated with 3.6 kW power, a high frequency alternating field. If the urban concept to disk drives, charging starts automatically - the alternating magnetic field induced on the infrastructure side of the air gap, an AC voltage in the secondary coil, which is integrated in the vehicle. He is rectified and fed into the electrical system, where it recharges the battery powered consumer or as a radiator.

The alternating field is built up only when a vehicle is above the surface, that presents no hazard to humans or animals dar.  The charging process stops by itself when the battery is fully charged, the driver can cancel it at any time. The efficiency of AWC is comparable with other charging technologies. Rain, ice or snow does not affect him. The new technology makes the charging of electric vehicles easy and extremely convenient. In a later stage they can also be integrated into transport infrastructure, such as equipment from car parks or residential streets.

Selasa, 03 Januari 2012

308 Hybrid HDi 2007

The next step in even greater environmental and acceptance of the diesel engine demonstrated at the Frankfurt Motor Show concept car 308 HybridHDi. Expected in 2010 will be the first vehicle 308 as the mark with this innovative drive concept on the market, which couples the excellent fuel economy of a HDi FAP engine with the power and zero emissions of an electric motor. The diesel-hybrid technology thus represents another important step to reduce fuel consumption dar. With the same performance, the HybridHDi reduced compared to conventional diesels, the fuel consumption and emissions by more than a third.

This vehicle is a prototype. It can not be bought!

With an average consumption of just 3.4 liters of diesel per 100 kilometers and CO2 emissions of just 90 g / km, the 308 Hybrid HDi is up 38 percent from the values ​​of a 308 HDi with comparable performance. In city traffic - where the share of electric motor operation is exceptionally high - the fuel consumption even at only 3.0 liters of diesel, resulting in a CO2 output of just 80 g / km mean - that represents a savings of 58 percent compared to the reference model. This is Peugeot's enormous potential of this drive concept impressively demonstrated. With the 308 HybridHDi Peugeot developed the concept of the diesel-hybrid continues until the planned start of production. Compared to the early 2006 presented the testbed HybridHDi 307 of the 308 HybridHDi the improvements are aimed primarily to the transfer of hybrid technology in the structure of the new 308 and adapting to future emissions standards in Europe. 

The engineers paid particular attention to the hybrid drive. This allowed the proportion of specific components from the previous concept car by around 30 percent to be reduced. The 308 HybridHDi thus shows already a near-standard configuration in which the performance of the drive unit unchanged at moderate consumption levels could be increased. Is powered by the 308 Hybrid HDi, which was shown at the IAA in a five-door version, and already the emission standard Euro 5 corresponds to a 80 kW (109 hp) diesel engine and a continuously operating 16 kW (22 hp) and 80 Nm payable electric motor (Permanentmagnet-Synchronmotor/PMSM). The total output of 96 kW is almost the same performance of the 308 HDi FAP, 2.0 liter displacement and 100 kW (136 hp).

The parallel hybrid power train is equipped with an automated six-speed manual gearbox (BMP6) coupled. The nickel-metal hydride battery (Ni-MH) delivers the latest generation of 200 volts and is housed in the spare wheel - this is no additional space is lost in the trunk. Needless to say, even the 308 Hybrid HDi FAP particulate filter system with a. While the overall performance of the 308 Hybrid HDi which correspond to an equivalent 308 HDi FAP, the HybridHDi at the pulling power far superior: For a whopping between acceleration, the diesel engine supported by the electric motor, the short period for up to 23 kW (32 hp) more power and provides 130 Nm more torque. In coasting or braking, the 308 Hybrid HDi recovers the kinetic energy and uses it to recharge the batteries. Using a special key, the all-electric ZEV mode (Zero Emission Vehicle) will be activated. In this case, the combustion engine only when strong acceleration or at high speeds is switched to.

The ZEV mode is ideal for city driving, because in this mode will cause no pollution or noise pollution. In the ZEV mode, the battery charge is sufficient for a distance of about three kilometers. By turning the ignition key, the engine is first started or not, but only put the system into operation. In automatic mode, the accelerator pedal is pressed, the vehicle is using the electric motor in motion. This is done on and off switching of the internal combustion engine via the "Stop and Start" feature. Depending on driving conditions, regulating the Power Train Management Unit (PTMU) the operation of the drive unit. The driver is informed at the request of a seven-inch multifunction color screen in 16:9 format in real time via the respective flow of energy currents. Control indicates the battery status and retrieved by the individual engine performance.