22nd April 2020

Charging capacity vs. charging speed: What constitutes high charging performance

Thanks to sophisticated thermal management, the car charges more quickly

When it comes to the charging curve, the Audi e-tron 55** plays to its conceptual advantages: The curve of an HPC terminal with 150 kW output stands out at a high level thanks to its continuity. Under ideal conditions the car charges between 5% and 70% state of charge at the threshold of the maximum output before the intelligent battery management reduces the current. A major difference from other concepts, which normally only reach their full output for a short time – at the “peak” – and lower their power considerably before reaching the 70% threshold. On a day-to-day basis, this means an elementary advantage: For a range of around 110 kilometres, the customer ideally spends just under 10 minutes at the charging terminal. The Audi e-tron 55** reaches the 80% mark after approximately 30 minutes. Even though it takes much longer, for technical reasons, to fill the remaining 20 percent of a lithium-ion battery, fully charging (5% to 100% state of charge) at an HPC terminal takes around 45 minutes – an outstanding characteristic in the competitive environment.

Audi e-tron 55 quattro: Combined electric power consumption in kWh/100 km: 23.1 – 21.0 (NEFZ); Combined CO2 emissions in g/km: 0 Information on fuel/power consumption and CO2 emissions in ranges depending on the chosen equipment level of the car.

Audi e-tron Sportback 55 quattro: Combined electric power consumption in kWh/100 km: 24.3 - 21.0 (NEFZ); Combined CO2 emissions in g/km: 0 Information on fuel/power consumption and CO2 emissions in ranges depending on the chosen equipment level of the car.

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The specified fuel consumption and emission data have been determined according to the measurement procedures prescribed by law. Since 1st September 2017, certain new vehicles are already being type-approved according to the Worldwide Harmonized Light Vehicles Test Procedure (WLTP), a more realistic test procedure for measuring fuel consumption and CO2 emissions. On September 1st 2018, the New European Driving Cycle (NEDC) was replaced by the WLTP in stages. Owing to the more realistic test conditions, the fuel consumption and CO2 emissions measured according to the WLTP will, in many cases, be higher than those measured according to the NEDC. Therefore, the usage of CO2 emission values measured according to WLTP for vehicle taxation from 1st September 2018 on can cause changes in this regard as well. For further information on the differences between the WLTP and NEDC, please visit www.audi.de/wltp or www.audi.ie/ie/web/en/models/layer/wltp-lp/layer/nefz-wltp.html

We are currently still required by law to state the NEDC figures. In the case of new vehicles which have been type-approved according to the WLTP, the NEDC figures are derived from the WLTP data. It is possible to specify the WLTP figures voluntarily in addition until such times as this is required by law. In cases where the NEDC figures are specified as value ranges, these do not refer to a particular individual vehicle and do not constitute part of the sales offering. They are intended exclusively as a means of comparison between different vehicle types. Additional equipment and accessories (e.g. add-on parts, different tyre formats, etc.) may change the relevant vehicle parameters, such as weight, rolling resistance and aerodynamics, and, in conjunction with weather and traffic conditions and individual driving style, may affect fuel consumption, electrical power consumption, CO2 emissions and the performance figures for the vehicle. Further information on official fuel consumption figures and the official specific CO₂ emissions of new passenger cars can be found in the guide “Information on the fuel consumption, CO₂ emissions and electricity consumption of new cars”, which is available free of charge at all sales dealerships and from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Strasse 1, 73760 Ostfildern-Scharnhausen, Germany (www.dat.de).