Audi presented the electric powered Audi e-tron GT concept, a four-door coupé, at the 2018 Auto Show in the movie capital Los Angeles. The volume-production counterpart is set to follow in around two years.
After the Audi e-tron SUV and the Audi e-tron Sportback that are slated to hit the road in 2019, the Audi e-tron GT will be the third addition to the brand’s all electric range.
434 kilowatts (590 hp) system power is an impressive figure for the potential of the all-electric drive. Separate electric motors are fitted to the front and rear axles. In both cases these are permanently excited synchronous motors. They put down the torque onto the road via all four driven wheels, naturally the new Audi e-tron GT concept is also a genuine quattro. An electric quattro to be precise, since there is no mechanical link between the front and rear axle. The electronic control system coordinates the drive between the axles as well as between left and right wheels.
In future, the vehicle should accelerate from 0 to 100 km/h in around 3.5 seconds before going on to 200 km/h in just over 12 seconds. The top speed is regulated at 240 km/h to maximise the range.
The range of the concept car will be over 400 kilometres, determined according to the new WLTP standard. The required drive energy comes from a lithium-ion battery with an energy content of more than 90 kWh, which takes up the entire underfloor area between the front and rear axle with its flat design.
The decisive advantage of this design is the car’s extremely low centre of gravity, comparable with that of the Audi R8, which in turn decisively benefits dynamic handling. All-wheel steering translates this into a perfect synthesis of sports car-like agility and precision, augmented by superb directional stability.
The recuperation system increases the range by up to 30% on Audi electric vehicles. The recuperation involves both the two electric motors and the electrohydraulically integrated brake control system. Different recuperation modes are combined: manual coasting recuperation using the shift paddles, automatic coasting recuperation via the predictive efficiency assist, and brake recuperation with smooth transition between electric and hydraulic deceleration.
The battery in the Audi e-tron GT concept can be charged in several ways: using a cable which is connected behind the flap in the left front wing, or by means of contactless induction with Audi Wireless Charging. Here a charging pad with integral coil is installed permanently on the floor where the car is to be parked, and connected to the power supply. The alternating magnetic field induces an alternating voltage in the secondary coil fitted in the floor of the car, across the air gap. With a charging output of 11 kW the Audi e-tron GT concept can be fully charged conveniently overnight.
Wired charging is much faster as the four-door coupé is fitted with an 800-volt system. This substantially reduces charging times compared with conventional systems that are currently in use. Thus it takes around 20 minutes to recharge the battery to 80% of its capacity, once again providing a range of more than 320 kilometres (WLTP).