Audi
e-tron Quattro Concept
Audi
is presenting the Audi e-tron quattro concept at the International Motor Show
(IAA) 2015 in Frankfurt. The car is the company's statement about the future of
electric mobility: It is sporty, efficient and suitable for everyday use.
The
Audi e‑tron quattro concept uses the
power of three electric motors: One electric motor drives the front axle, the
two others act on the rear axle. Total output is 320 kW. The driver can even
mobilize 370 kW and over 800 Nm (590.0 lb-ft) of torque temporarily while
boosting. The concept study thus performs like a sports car. When the driver
floors the right pedal, the Audi e‑tron
quattro concept sprints from a standstill to 100 km/h in 4.6 seconds
and quickly reaches the electronically governed top speed of 210 km/h.
The
concept with three electric motors which Audi is presenting for the first time
makes the technology study an e‑tron
quattro. An intelligent drive management system controls the interplay between
them as appropriate for the situation. The focus here is on the greatest
possible efficiency. The driver decides on the degree of recuperation, the
driving program S or D and the mode of the Audi drive select system.
During
sporty driving on a winding road, the Torque Control Manager actively
distributes the power between the rear wheels as necessary. This torque
vectoring provides for maximum dynamics and stability.
The
large lithium-ion battery is integrated into the floor of the passenger
compartment. It gives the Audi e‑tron
quattro concept a balanced axle load distribution and a low center of gravity -
prerequisites for its dynamic handling. The battery's capacity of 95 kWh
enables a range of more than 500 kilometers. The Combined Charging
System (CCS) enables charging with DC or AC electrical current. A full charge with
DC electrical current at a charging column with an output of 150 kW takes just
around 50 minutes. As an alternative, the study is equipped with Audi Wireless
Charging technology for contactless induction charging. The charging process is
very convenient. The Audi e‑tron
quattro concept uses a system for piloted parking that guides it to the proper
position at the charging plate. In addition, a large solar roof provides
electricity for the drive system battery on sunny days.
The
chassis also expresses the high-tech character of the concept study. The
adaptive air suspension sport, which features controlled damping, lowers the
body at higher speeds to reduce drag. The dynamic-all-wheel steering combines a
dynamic steering system on the front axle with a steering system for the rear
wheels. Depending on speed and the driving situation, they steer either
opposite or in the same direction as the front wheels. The Audi e‑tron quattro concept thus reacts
even more spontaneously and stably, and is also very manoeuvrable at low
speeds.
The
Audi e‑tron quattro concept harmoniously
combines the design with the aerodynamics and all-electric drive system. The
five-door technology study is 4.88 meters long, 1.93 meters wide and just 1.54 meters high. Its coupe-like silhouette with the
extremely flat greenhouse that tapers strongly toward the rear lends it a very
dynamic appearance. The car's drag coefficient measures just 0.25 - a new best
for the SUV segment, where figures are usually considerably over 0.30.
The
package of the Audi e‑tron
quattro concept enables a spacious, comfortable interior for four persons and
615 liters of luggage. The interior has a light and open feel to
it; its architecture melds harmoniously with the operating and display concept.
All displays in the interior use OLED technology. The extremely thin films can
be cut to any desired shape.
The
new Audi virtual cockpit curved OLED is a further development of the Audi
virtual cockpit that debuted in production vehicles in 2014. To the left and
right below the fully-digital instrument cluster are two touch displays with
black glass and a subtle aluminum frame. The driver controls the lights and the
systems for piloted driving with the left display. The large display on the
right is for media and navigation management. The steering wheel serves as an
alternate control level. Its spokes are equipped with contoured touch surfaces.
The
concept study is equipped with all the technologies that Audi has developed for
piloted driving: radar sensors, a video camera, ultrasonic sensors and a laser
scanner. The data these supply come together in the central driver assistance
controller (zFAS) in the luggage compartment. It computes a complete model of
the car's surroundings in real time and makes this information available to all
assistance systems and the systems for piloted driving. These technologies are
also nearly ready for use in production vehicles.