Audi e-tron: Germans have started to compete with Tesla

In 2018, six years after the market launch of the Tesla Model S, German car companies are finally entering the ring with Elon Musk. Unlike Mercedes in the EQC , which builds on a combustor platform, Audi has developed the e-tron introduced today in its production version from the ground up as an electric car.

The 4,901 mm long, 1,935 mm wide and 1,616 mm high electric SUV brings correspondingly consistent key data. And with that, Tesla can actually compete with it. This feat has previously been achieved only by Jaguar with the I-Pace. Of course, one should not forget here that, for example, a Model X can provide even more seats and the Californians give the customer with their supercharger network equal to a suitable infrastructure in the hand. Nevertheless, the Audi e-tron looks thoughtful from the beginning to the end – based on the needs of the inclined electric car.

The drive

Up to 300 kW of maximum power can be provided by the two electric motors specially produced by Audi for eight seconds. These are 165 kW at the rear and another 135 kW at the front axle. Torque: 664 Nm. Within 5.7 seconds it goes from 0 to 100 km / h. For this, however, the speed must be set from D to S. If you like it a little less frugal, you get a system performance of up to 265 kW and 561 Nm. Then accelerate the two electric vehicles, the electric SUV in 6.6 seconds from 0 to 100 km / h. Top speed: 200 km / h. For the drive, the electric SUV mainly uses the e-machine on the rear axle. If the driver demands more power than can be provided, the electric motor on the front axle intervenes supportively. Among other things, this drive concept brings along the advantages of Quattro technology. Added to this is a standard air suspension with adaptive dampers. Overall, the driver can choose between seven driving profiles. Incidentally, the electric SUV recovers up to 0.3 g. To classify this, Audi provides a sample calculation: With a braking of 100 km / h, the e-tron can recuperate with a maximum of 300 Nm and 220 kW of electrical power.

The battery

The liquid-cooled lithium-ion battery with a capacity of stately 95 kWh (usable 83.6 kWh) is located under the passenger compartment between the two axles. The battery is divided into 36 modules, each equipped with twelve Pouch cells each with 60 Ah. But it should not stay that way: just as Jaguar has already announced, the Ingolstadt residents have the option to switch to other formats such as prismatic cells.

audi-e-tron-battery-battery 2018 min

The battery brings a weight of 700 kilos. For comparison: At Mercedes-Benz, the 80 kWh large chemical Seicher weighs 650 kg. Audi has thus managed to create a battery that is lighter in relation to capacity. While the EQC generates a weight of 8.13 kg per kilowatt-hour, the Audi e-tron weighs only 7.37 kg at the system level.

The battery brings a weight of 700 kilos. For comparison: At Mercedes-Benz, the 80 kWh large chemical Seicher weighs 650 kg. Audi has thus managed to create a battery that is lighter in relation to capacity. While the EQC generates a weight of 8.13 kg per kilowatt-hour, the Audi e-tron weighs only 7.37 kg at the system level.

audi-e-tron prototype technical-details-battery

Detailed information is also available for thermal management: For a long-term high-performance operation of the battery, a cooling system is made of flat extruded aluminum sections, which are uniformly divided into small chambers. The heat exchange between the cells to the cooling system arranged below takes place via a thermally conductive gel, which is pressed under each cell module. It transfers the resulting waste heat evenly across the battery housing into the coolant – a particularly efficient solution.

Audi has already said a lot  about charging power: while an AC charging power of 11 kW is fitted as standard, it can optionally be increased to 22 kW, not to mention a second type 2 charging socket. The possibilities of the three-phase power grid are thus fully exploited. The DC charging power is estimated by the Ingolstadt with 150 kW – which is a new peak value. Jaguar is approaching this in software steps, too, but the Mercedes EQC remains at 110 kW.

audi-e-tron prototype technical-details

All Audi e-tron, which tumble off the line from mid-2019, will support Plug & Charge ex factory. Even in a private environment, the customer can use the function to unlock his charging system. Again, Audi informs that the function is supported for all charging modes (AC and DC). Consequently, this also includes the HPC fast loaders from IONITY.

According to Audi, Audi is giving all e-tron customers – and therefore also owners of plug-in models – access to about 80 percent of all public charging stations in Europe. More than 72,000 charging points are already available in 16 EU countries at the market launch, with another eight markets in Eastern Europe coming in a few months after the market launch. The billing takes place centrally via only one contract with uniform and transparent pricing models.

By the way, Audi has not yet announce the aerodynamics of the SUV. Reason: The homologation is still pending. The CW value is rated at 0.27. For comparison: A Tesla Model X comes to 0.25 and a Jaguar I-Pace to a value of 0.29. What do these values ​​mean for the range? After WLTP over 400 kilometers are to be possible. Again, the car must go through the homologation for the exact indication. For comparison, the Jaguar I-Pace with its 90 kilowatt-hours after the WLTP cycle creates about 480 kilometers and a Tesla Model X with 100 kWh comes to a NEDC range (WLTP is not yet available) of up to 565 kilometers. Although the I-Pace thus has a worse CW value than the Audi e-tron, it still continues.

The electric drives from Audi Hungaria are produced in Györ. Instead, Mercedes-Benz relies on a supplier. The e-tron will be produced at the Brussels plant , which will be operated in future in a CO2-neutral manner. There is also a separate battery assembly in the Belgian capital. The production of the vehicles has started recently. And so it happens that the first deliveries are already planned for the end of this year. As a base price Audi calls for the e-tron 79,900 euros – which is quite an announcement in the direction of Tesla. It is still to be seen what is already included in the “extensive standard equipment”.

Technical specifications:
power 300 kW (408 hp)
Max. torque 664 Nm
top speed 200 km / h
0 – 100 km / h 5.7 seconds
Range combined * (WLTP) over 400 km
Consumption * (WLTP) n / A
battery capacity 95 kWh (83.6 net, 700 kg)
Charging power DC 150 kW (CCS)
Charging time DC about 30 minutes (80 percent)
Charging power AC 11 kW (optional 22 kW, type 2)
Charging time AC about 7.6 hours (3.8 hours)
Curb weight * n / A
seating 5
Trunk volume (liters) approx. 600 l (+ 60 l frunk)
towable 1,800 kg (braked)

* provisional data, homologation is pending

Of course it will not stay with the Audi e-tron. Because the Ingolstadt must sooner or later earn money with electric cars, which is unlikely to be created with the e-tron as a special solution. By 2025, the Ingolstadt plan to offer an electrified variant for each model of the core series, be it fully electric or plug-in hybrid.



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