You might be forgiven for thinking electric cars don’t make any sound at all. In the case of Audi’s e-tron GT however, a great deal of effort has been made by the E-Sound GUI team (yes that really exists) to ensure the car sounds just right. Utilising such items as a didgeridoo and a metal pipe, the sounds are sampled to give just the right nuances. This in turn is guaranteed to give the driver a big smile when planting their right foot.
The e-sound of the Audi e-tron GT
Whether it’s quality, design or technical characteristics – the Audi e-tron GT is a car packed with all the passion of Audi. This also applies to the sound of the electrically powered Gran Turismo. Engineers Rudolf Halbmeir and Stephan Gsell conceived and designed the progressive electronic sound – on the computer, in the sound laboratory, inside the moving car, and in customer studies.
As with every electric car, the e-tron GT also features the statutory acoustic vehicle alerting system (AVAS), although embedded within a broader acoustic spectrum. A loudspeaker fitted in the front of the vehicle emits the AVAS sound. For customers ordering the optional sound package, a second, large loudspeaker is added in the rear. In parallel, two loudspeakers in the interior provide an emotional sound experience. Two control units continuously remix the e-tron GT sound based on variables such as speed or accelerator position. The Audi drive select system allows drivers to set whether and how intensively they wish to experience the sound.
Facts and figures
• Production of the Audi e-tron GT at Audi Böllinger Höfe, which opened in 2014 at the Neckarsulm site; expansion and conversion 2019; new virtual planning methods
• Head of Production Wolfgang Schanz: “Here, we are bringing a unique combination of craftsmanship and smart factory technology to life”
• The body shop for the e-tron GT is around 85 percent automated; ten stations with a total of 34 robots
• Optimum area management with a body assembly line along which each body passes twice; two-way framer combines multiple manufacturing steps on limited floorspace
• Correlation-free inline measurement is a new technology offering the highest precision, with a maximum possible deviation of just +/-0.20 millimeters
• The joint assembly line for Audi e-tron GT and Audi R8 despite their different technology concepts is unique in the Volkswagen Group
• Different conveyor technologies on the assembly line: 20 driverless transport vehicles, new electrically powered overhead conveyor rail, autonomous transfer station
• Human-robot cooperation for bonding the front and rear windows
• Customised assembly aids from the 3D printer based on employee ideas
• Development of the e-sound for the Audi e-tron GT with musical creativity and technical competence; designed on the computer, in the sound laboratory, and in the car
• 32 individual sound elements; weighted and modulated based on drive management data
• Optional sound package: two control units in the luggage compartment, two external loudspeakers on the car and two internal loudspeakers in the rear doors
• Sound characteristics can be adjusted across multiple stages using Audi drive select
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