Image credits: © Audi.

2016 Audi h-tron quattro concept news, pictures, specifications, and information
The brand wîth the four rings is unveiling its concept car Audi h-tron quattro concept at the NAIAS 2016 in Detroit – a sporty SÚV that uses hydrogen as its energy source. The concept car combines a highly efficient fuel cell achieving an output of up to 110 kW wîth a battery that provides a temporary boost of 100 kW. Audi's fuel cell technology paves the way for sustainable mobility wîth the sporty performance for which the brand is renowned.

The Audi h-tron quattro concept uses only around one kilogram (2.2 lb) of hydrogen per 100 kilometers (62.1 mi). It takes only about four minutes to fill the tank, giving the car a range of up to 600 kilometers (372.8 mi). The conspicuously aerodynamic design wîth a Cd value of 0.27 plays a major part in its outstanding efficiency.

In another major step, Audi will go into production wîth its new technologies for piloted driving and parking in 2017 along wîth the next generation of the A8 luxury sedan. (concept carz) The technology study already provides a glimpse of things to come.

Fuel cell drive for efficiency and power
Perfectly equipped for the future
Audi is drawing on a wide variety of technologies in securing the mobility of the future, and thus providing an attractive proposition for every customer in every market. The concept car Audi h-tron quattro concept is closely related to the purely battery-powered Audi e-tron quattro concept exhibited at the 2015 Frankfurt Motor Show. But a new technical solution now comes into play: The 'h' in its name represents the element hydrogen – the energy source for the fuel cell. With the Audi h-tron quattro concept, Audi documents its expertise in all areas of forward-lòòking technology.

Like the Audi e-tron quattro concept, the concept car takes the second-generation modular longitudinal platform (MLB evo) as its basis. This concept is particularly versatile; even though the energy sources differ, both cars share an almost identical floor assembly.

Vital Stats

The Fuel Cell
In the concept car, the fuel cell is installed in the forward structure. Its 330 cells form what is known as a 'stack.' Depending on the load point it operates in the voltage range of 220 to 280 volts. The core of each cell is a polymer membrane. On either side there are electrodes coated wîth a platinum-based catalyst. Hydrogen is supplied to the anode, where it is broken down by the catalyst into protons and electrons. The protons diffuse through the membrane to the cathode, where they react at the catalyst wîth oxygen from the air and the electrons to form water vapor (the membrane is only permeable for protons, not for electrons).


The Audi h-tron quattro concept demonstrates the fifth generation of fuel cell technology from Audi and Volkswagen. The focus is on new materials for the diaphragms and the bipolar plates that guide the gases in the stack while keeping the cells separate. They help to make the entire unit lighter, smaller, stronger and also more economical, especially as the content of the precious metal platinum has been reduced. The operating life and responsiveness are improved, and hydrogen consumption is cut. The fuel cell now achieves an efficiency of 60 percent, far more than that of a combustion engine.

The fifth-generation fuel cell technology operates at a temperature level of up to 95 degrees Celsius, an increase of 15 degrees compared wîth the previous generation. A high-efficiency heat pump that absorbs the waste heat from the electrical components and a thermoelectric auxiliary heating element maintain pleasant temperatures inside the car. The car starts wîth ease at down to minus 28 degrees Celsius.

Powerful boost: lithium-ion battery supplies up to 100 kW of power
Únderneath the inside floor, roughly in the middle of the passenger compartment, lies a compact lithium-ion battery weighing less than 60 kilograms (132.3 lb) and featuring highly performance-optimized cells. It can temporarily deliver up to 100 kW of power to the electric motors, while its energy capacity is limited to around 1.8 kWh. The storage battery operates over the range of 220 to 460 volts – a high-efficiency triport DC converter in the engine compartment equalizes the difference compared wîth the fuel cell's voltage level.

Two power electronics units convert the direct current into alternating current for the two high-performance electric motors. The front electric motor generates 90 kW and the rear one 140 kW. Their housings incorporate planetary gear trains wîth a single transmission ratio; a mechanical parking lock and a differential function round off the system.

A separate low-temperature circuit keeps the driveline and high-voltage battery components sufficiently cool even when the car is driven sportily.

The e-quattro drive of the Audi h-tron quattro concept
The Audi h-tron quattro concept is equipped wîth electrified quattro drive. Each motor powers one set of wheels – as on the technology demonstrator Audi A7 Sportback h-tron quattro, which Audi presented in November 2014. The torque can be varied continuously for both axles. Efficiency is the priority for the electric motor management concept. At low loads only the front axle receives propulsive power, and at very low speeds the power is supplied solely by the battery. The e-quattro concept requires precise coordination of the electric motors – the technology study Audi h-tron quattro offers the sporty, stable and high-traction drive of a production car wîth mechanical quattro drive.

The Audi h-tron quattro accelerates from 0 to 100 km/h (62.1 mph) in less than seven seconds; its top speed is governed at 200 km/h (124.3 mph). The silent thrust is already available in full from the start. The energy from moderate brake applications is channeled back into the high-voltage battery by the electric motors. The driver can influence the degree of recuperation by selecting either gliding mode or coasting recuperation. The four wheel brakes only cut in if harder or emergency braking is required.

Refueling in four minutes for a range of up to 600 km (372.8 mi)
Like on a car wîth combustion engine, refueling wîth hydrogen takes about four minutes. The three high-tech tanks communicate wîth the refueling system by infrared interface and equalize the pressure and temperature levels. The stainless steel hydrogen tank cap is located on the front right wing of the sporty SÚV; its flap opens electrically.


The hydrogen tanks of the Audi h-tron quattro concept differ in size. The front one is installed longitudinally beneath the center console, and the two other tanks transversely beneath the rear seats and luggage compartment respectively. Together wîth the battery, they are secured to a structural frame. Neither on the fuel cell drive version nor on its purely battery-powered sister model the Audi e-tron quattro concept do the tanks impinge on the interior. This demonstrates the versatility of the new MLB evo platform.

Every tank is made up of several layers – the inner tank from gas-tight polyamide is wrapped in carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP). Between them, the three tanks can store about six kilograms (13.2 lb) of hydrogen at a pressure of 700 bar, sufficient for a range of up to 600 kilometers (372.8 mi). According to the New European Driving Cycle, fuel consumption is only around one kilogram (2.2 lb) of hydrogen per 100 kilometers (62.1 mi) – an amount wîth an energy content equivalent to about four liters (1.1 ÚS gal) of gasoline. Because the exhaust system carries only water vapor, it is made from lightweight polymer; in cold weather, a little water may trickle out of the tailpipes, just as wîth a cold combustion engine.

Zero global emissions wîth renewably produced hydrogen from the Audi e-gas facility in Werlte, Germany
The Audi h-tron quattro concept achieves not just zero local emissions, but zero global emissions – if the hydrogen it runs on has been produced from water using renewable energy, as is the case at the Audi e-gas facility in Werlte, Lower Saxony. Since 2013 the world's first power-to-gas plant has been using electricity generated by wind power to break water down into oxygen and hydrogen by electrolysis. In a further process, this gas is currently reacted wîth CO2 to produce Audi e-gas, or synthetic methane, for the Audi A3 g-tron* and the A4 g-tron* wîth CNG drive. Many customers are already using the e-gas fuel card to buy Audi e-gas via the existing natural gas network at conventional CNG filling stations, enabling them to drive almost CO2-neutrally. But in future it will be possible to tap this hydrogen source so that fuel cell cars can run on this climate-friendly fuel. (concept carz)

The 1.98 meter long (6.5 ft) solar roof plays an instrumental role in the technology study's energy management concept – it is the largest and highest-performance such roof in a car. It feeds electricity at up to 320 watts into the battery if the Audi h-tron quattro concept is parked or driven in the sun. In a region such as Central Europe, for example, that means it can contribute an extra range of up to 1,000 kilometers (621.4 mi) per year. In summer the solar roof generates enough energy to power the auxiliary ventilation for the interior. That substantially reduces the cooling performance required of the air conditioning system.

Leading role: the piloted driving
The Audi h-tron quattro concept is equipped wîth all functions for piloted driving and parking that Audi is developing for production use. The combination of radar, camera and surround sensors supplies a complete model of the car's surroundings. A laser scanner monitors the area in front of the car up to 80 meters (262.5 ft) away. All the data is brought together in the driver assistance system (zFAS) in real time. The computing power of the zFAS is equivalent to the entire electronics architecture of a well-appointed midsize automobile – but the high level of integration means the board is merely the size of a tablet PC. The zFAS and the surround sensors provide a compelling foretaste of technologies that will soon be going into production at Audi.

The function for piloted driving in congestion currently being developed by Audi will in future reduce the driver's workload in slow-moving traffic on express roads by taking care of the §teering at speeds of between 0 and 60 km/h (37.3 mph). The system also accelerates and slows down on its own. With piloted parking from Audi, the driver will be able to control the car conveniently from outside, via the remote control key or a smartphone.

New lighting technology wîth laser and OLED
The concept car generates all main lighting functions wîth Matrix laser technology, the next step forward in the development of automotive lighting technology. Broken down into hundreds of thousands of pixels, their beam can illuminate the road in high resolution and wîth extreme precision control – without dazzling oncoming traffic. The use of Matrix laser OLED technology serves to highlight Audi's Vorsprung durch Technik specifically in the domain of automotive lighting.

At the front of the car, multiple narrow, individual OLED luminaries are arranged horizontally staggered one above the other. They complement the white daytime running lights signature wîth blue light that is emitted to the sides and upwards. In the upper section of the grille, slats act as visual ties between the five OLED (organic light emitting diode) elements of each lighting signature. Each of these combines an LED luminary wîth a flat OLED element. The OLEDs produce particularly homogeneous light and can create various different lighting scenarios.

Similar to the units up front, the rear lights are also split into two zones. The upper section contains nine upright OLED units that assume the tail light functions. There are three more horizontally staggered units below these.

The OLED displays: the next step for the display concept
The operating and display concept of the Audi h-tron quattro concept harmonizes perfectly wîth the sculptural, driver-oriented architecture of the cockpit, which is dominated by large OLED displays. Here Audi is continuing the line of its most recent concept studies – some details will make their way into production vehicles in the foreseeable future.

The middle of the three displays in front of the driver is the new Audi virtual cockpit curved OLED, a free-standing, thin OLED display wîth a narrow aluminum clip and a gently curving surface that renders all displays very easy to see. Its free-form shape transcends the hitherto customary rectangular format, all thanks to OLED technology wîth its wafer-thin films. Animated graphics give the two-dimensional displays a 3D look. In the main menu the Audi virtual cockpit curved OLED shows the speed, the fuel level of the hydrogen tanks and the range.

On the left and right below the Audi virtual cockpit curved OLED, there are two touch displays. The left display enables the driver to control the lighting functions and the systems for piloted driving. The 14-inch display on the right is asymmetrical, just like the instrument cluster. It is used to control media lists and navigation maps, and shows the h-tron-specific operating status.

Two further displays are located on the center console. One is fitted flush wîth the console and displays the selected drive status. The front display, which is curved upward, offers gesture controls and visualizes the climate control system, which is operated using virtual sliders. The driver can also use it to call up information such as weather, appointments or addresses using freely assignable preset buttons.

There are also two displays, again wîth gently curving surfaces, in the front section of the doors. These serve as digital exterior mirrors. Their specially processed camera image is bright even in poor light conditions, offers high contrast and is glare-free. Their position in the doors is ergonomically optimized, thus improving safety.

The operating concept of the Audi h-tron quattro concept makes it possible to manage a wide range of functions via the flat-bottomed, highly dished §teering wheel. Its horizontal spokes feature touch surfaces, wîth fine contours in the glass acting as guides for the thumbs. Each input is followed by a gentle vibration to provide haptic confirmation. The flat, wide selector lever on the center console incorporates a button for the driving programs on its left side.

The OLED-based mobile Rear Seat Entertainment
The rear passengers in the Audi h-tron quattro concept have two Audi tablets wîth OLED displays at their disposal. Designed as a mobile Rear Seat Entertainment concept, they can be disengaged from their holders on the front seats for use outside the car, too. In the car, they can also be used to share media data wîth the driver. The concept study is connected to the Internet using the fast LTE (4G) standard. The passengers can surf and send mail as much as they wish, while the driver benefits from the services available in the Audi connect portfolio.

High-tech from Audi: the chassis
The chassis, too, highlights the character of the Audi h-tron quattro concept. The adaptive air suspension sport – the air suspension wîth controlled damping – contributes to efficiency. It lowers the body in two stages by up to 30 millimeters (1.2 in) as the speed increases, thus reducing drag. The driver can regulate the adaptive air suspension sport via the Audi drive select system.

The front and rear axles are lightweight, five-link constructions made of aluminum and high-strength steel. The 22-inch wheels are equipped as standard wîth reduced rolling resistance tires of size 265/40 R22. The large ceramic brake disks measure 20 inches in diameter on the front axle, and 19 inches on the rear axle.

The package: ample space for four
Thanks to its optimized use of space, the Audi h-tron quattro concept offers plenty of room for passengers and luggage. The driver and up to three passengers sit on sporty individual seats; rear leg room is generous. Despite the sporty cut of the roof, all of the car's occupants have ample headroom. The luggage compartment in the standard configuration has a capacity of 500 liters (17.7 cu ft), which increases to 1,610 liters (56.9 cu ft) when the rear seat backrests are folded down.

Audi has devised a new, intelligent technology for loading the luggage compartment. Two sensors on the tailgate trim monitor the items of luggage standing behind the car. A software function calculates the best way to arrange the items in the luggage compartment. A seven-inch monitor mounted on the rear cutout shows the driver the best order in which to load them.

Highly streamlined: the exterior design
Measuring 4.88 meters (16.0 ft) in length, 1.93 meters (6.3 ft) wide and wîth a 2.91 meter (9.5 ft) wheelbase, the Audi h-tron quattro concept is positioned between the Audi Q5 and the Audi Q7 SÚVs. But at just 1.54 meters (5.1 ft) tall, it is much lower in height than the two production models. The greenhouse is particularly low, the roof line drops down again quickly and the D-posts are correspondingly flat, giving the body shape markedly coupe-like traits.

The design language of the technology study has been developed in close collaboration between aerodynamics engineers and designers. The drag coefficient of 0.27 enables the Audi h-tron quattro concept to cut through the wind wîth ease and also plays a major role in the car's high range of up to 600 kilometers (372.8 mi). The aerodynamic concept includes a long body along which the air flows cleanly, a tapered tail end wîth sharp separating edges, plenty of fine-detailing on the outer skin and the wheels, and an aerodynamically optimized floor pan wîth newly designed microstructures. These draw inspiration from the bionic model of shark skin.

The Audi h-tron quattro concept sports aerodynamic elements on the flanks and at the rear. At speeds of 80 km/h (49.7 mph) upward, they direct the flow of air to improve its movement around the vehicle.

Thanks to the refined aeroacoustics, the level of wind noise in the Audi h-tron quattro concept is impressively low even when traveling at speed.

The front end of the Audi h-tron quattro concept creates an impression of width, power and poise. The Singleframe grille is almost completely open. This is attributable to the higher amount of cooling air required by the fuel cell drive than by a battery-powered car. Behind the Singleframe grille and the large air inlets there is one radiator on either side.

In the upper section of the grille, slats act as visual ties between the five OLED (organic light emitting diode) elements of each lighting signature. Each of these combines an LED luminary wîth a flat OLED element. The OLEDs produce particularly homogeneous light and can create various different lighting scenarios.

The frame of the grille is made from brushed aluminum wîth polished edges, and it displays an h-tron logo in the lower clip. A compact sensor rack is integrated discreetly into the grille – it includes most of the sensors for the driver assistance systems and the new systems for piloted driving.

Aerodynamically shaped: the flanks
The side view, too, expresses the character of the concept car. The flowing shoulder line forms distinctive blister contours above the aerodynamically optimized wheels in a nod to Audi's quattro genes. Between the shoulder line and the greenhouse, there is a striking small-radius fillet that extends visually around the entire body. The door handles recessed into the body lie below the shoulder line. They extend outward electrically when touched.

Small cameras take the place of the exterior mirrors – this is a near-production technology from Audi that offers other advantages in addition to improved aerodynamics and aeroacoustics: it eliminates the blind spot of physical exterior mirrors. Even on tight bends such as hairpin turns on a mountain pass, the view diagonally to the front remains unobstructed.

The wheel arches have wide wheel panels that visually shrink the amount of paneling down the flanks and emphasize the robust character of the Audi h-tron quattro concept. The same applies to the angular side sills. They incorporate a light strip in Matrix LED technology that offers additional new functions: It emits white light when the driver approaches the technology study bearing the remote control key. This 'lightway' dynamically adjusts to the position of the driver and accompanies them until they get in. A similar scenario plays out when exiting the vehicle. Two blue horizontal lines light up as distinguishing features during piloted driving.

The side walls end at the rear of the vehicle in vertical separating edges, at which the air flowing around the vehicle separates cleanly. Compact electric motors in the side sills are activated at higher speeds. These force the rear §egmènts of the strips 50 millimeters (2.0 in) outward like a funnel so that the air is directed past the rear wheels.

Highly tapered: the rear end
The greenhouse of the Audi h-tron quattro concept tapers sharply towards the rear. The shoulder line extends across the rear cargo hatch, giving it a clear contour. Running along this line is an LED light guide that joins the rear lights, thus emphasizing the width of the car.

At higher speeds the spoiler on the tailgate extends by up to 100 millimeters (3.9 in). At the same time the diffuser extends to the rear. The targeted merging of the air flows from the roof and the underfloor improves the separation of the airflow.

Taut and light: the interior
Taut lines, clear shapes and sinuously stretched surfaces give the interior a clear, light character. The dashboard slopes downward toward the passengers in two levels. The air vents are integrated into the step between them and the large, encircling arc (wrap-around). The center tunnel console seems to float, while providing extra storage facilities. Two easy slots connect the driver's and front passenger's smartphones wîth the on-board electronics and recharge them inductively.

The dominant color inside the Audi h-tron quattro concept is a cool, technical gray, wîth a subtle gradation of hues from the top down. The floor is upholstered in fine Nappa leather, and the textile floor mats are made from a thick, rubber-like yarn that is very hard-wearing and affords good grip.

On the seating surfaces and door top shoulders, sporty Alcantara provides a subtle contrast to the soft unicum leather wîth which the head restraints and backrest tops are covered. The seats have a special stitching pattern wîth red and yellow contrasting stitching; the dashboard also has a leather surface. The frames and clasps of the controls and seats are made of darkened, brushed aluminum, wîth polished edges introducing subtle highlights.

Source - Audi
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80
A1
A3
A4
A5
A6
A7
A8
Front 225
Q3
Q5
Q7
Quattro
R15
R8
RS 7
RS4
RS5
S1
Sport Quattro
TT
UW 220

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