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Tech Talk: the 2020 Audi S6 and S7 2.9-Liter V6 TFSI Engine and Electric-Powered Compressor

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Tech Talk: the 2020 Audi S6 and S7 2.9-Liter V6 TFSI Engine and Electric-Powered Compressor Audi of America Communications Mark Dahncke Jacob Brown Phone: +1 703.229.2549 Phone: +1 703.685.5681 E-mail: [email protected] E-mail: [email protected] www.media.audiusa.com www.media.audiusa.com Tech talk: The 2020 Audi S6 and S7 2.9-liter V6 TFSI engine and Electric -Powered Compressor Over the next few weeks, we'll be publishing a “Tech Talk” series to share more about the people and technology behind our cars – who and what make an Audi an Audi. If you’re interested in a particular topic, please email us at [email protected]. We hope you enjoy the series! What makes an Audi “S” car or SUV worthy of its badge? The easiest answer is the balance of performance and design. But, Audi’s engineers often raise the bar a bit further, with one of the latest examples found in the new Electric-Powered Compressor (EPC) in the 2020 Audi S6 and S7 models. Brought to the U.S. market for the first time in the Audi S6 and S7, the EPC comes paired to the 2.9-liter, twin-turbocharged TFSI® V6 engine. It consists of an electric motor with a small turbine that helps quickly build turbo boost pressure, sharpening throttle response and reducing any noticeable turbo “lag.” 1/3 The EPC takes advantage of our latest-generation 48V mild hybrid electrical architecture, supplying electric energy generated during coasting and recuperation to the vehicles’ 9.6 Ah lithium-ion battery. From there, the battery provides the electric motor energy to accelerate turbine located downstream of the engine’s turbochargers to quickly increase pressure, aiding engine responsiveness and torque delivery. The entire EPC system adds just 10 kg (22 lbs) to the vehicles’ overall weight and reduces response time to less than 250 milliseconds, faster than an average human’s reaction time. The compressor is located downstream of the engine’s parallel twin turbochargers and upstream of the air-to-water intercooler, pushing cooler air through the engine’s two throttle bodies and into its cylinders with higher force. At lower engine speeds, the EPC activates at speeds up to 70,000 RPM. This helps the engine operate similar to the smoothness of a naturally aspirated, non-turbocharged, engine. When the V6 TFSI engine is operating at higher speeds, a valve for the EPC closes, leaving a parallel path for air to move throughout the engine. However, the EPC is always operating, even when idle, ready to respond to the driver’s needs for more power. Both the Audi S6 and S7 are rated at 444 horsepower and 443 lb-ft of torque—37 lb-ft more than their V8 TFSI-powered predecessors. More importantly than numbers, however, is drivability, control and agile responsiveness, where the 2.9-liter V6 TFSI with EPC excels. In internal tests that simulate real-world standing starts, the latest powertrain exhibits response characteristics that rival Audi’s torque-rich, turbocharged 4.0-liter TFSI V8. Yet, the 2020 S6 and S7 offer 22% greater EPA-estimated fuel-efficiency with its downsized V6 engine compared to their predecessors without sacrificing performance. For more information about the 2020 Audi S6 and S7 models, please visit www.audiusa.com. – End – ABOUT AUDI OF AMERICA Audi of America, Inc. and its U.S. dealers offer a full line of German-engineered luxury vehicles. AUDI AG is among the most successful luxury automotive brands, delivering about 1.845 million vehicles globally in 2019. In the U.S., Audi of America sold just over 224,000 vehicles in 2019 and launched the brand’s first fully electric vehicle, the Audi e-tron – one of four fully electric models coming to the U.S. market in the next two years. Globally, the brand aims to be CO2 neutral by 2050. Visit audiusa.com or media.audiusa.com for more information regarding Audi vehicles and business topics. 2/3 Note: Actual fuel mileage will vary and depend on several factors including driving habits, accessory use, temperature and topography, load and vehicle condition. Battery capacity decreases with time and use. See owner’s manual for details. 3/3 .
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