Understanding Vorsprung durch Technik Through the Eyes of Audi’s Aerodynamics Experts
Audi’s iconic slogan, Vorsprung durch Technik—or “progress through technology”—has long been a driving force behind the brand’s innovations. In this second part of our exclusive four-part interview series, we explore what this philosophy means to those working at the forefront of Audi’s design and engineering. Today, we speak with Dr. Moni Islam, head of aerodynamics and aeroacoustics development, who gives us an inside look at how Audi continues to push the boundaries of technological advancement.
Who is Dr. Moni Islam?
Dr. Moni Islam plays a pivotal role in shaping the aerodynamic and aeroacoustic performance of all Audi production vehicles. From the initial concept stages right through to mass production, she oversees the development process for these critical technical disciplines. Her responsibilities also include ensuring that her department utilises the latest technologies and methodologies to achieve exceptional results.
For Dr. Islam, Vorsprung durch Technik represents more than just a slogan—it embodies the spirit of innovation and the drive to achieve what others believe is impossible. As an engineer, she thrives on tackling complex challenges and pioneering new approaches. This passion for pushing limits was one of the key reasons she joined Audi years ago.
A Groundbreaking Project That Changed the Industry
When asked about the project she is most proud of, Dr. Islam highlights a development that, while not widely publicised, had a significant impact on the industry. Several years ago, her team worked on creating a groundbreaking software technology for aerodynamics simulations. This innovation provided unparalleled accuracy and flexibility, giving Audi a competitive edge. When they finally shared their findings, it surprised the entire industry because they demonstrated that what many thought was unachievable was, in fact, possible.
Historical Innovations in Aerodynamics
Over the past 50 years, aerodynamics has been central to Audi’s Vorsprung durch Technik philosophy. Two models stand out as major milestones: the Audi 100 from 1982 and the Audi A2 from 1999. Both were designed with fuel efficiency in mind, resulting in highly streamlined shapes that redefined car design at the time.
The Audi 100 introduced features such as flush glazing and a sleek greenhouse, while the A2 incorporated principles from Wunibald Kamm’s work, along with optimised underbody and wheel designs. These innovations laid the foundation for future advancements in aerodynamics.
With the rise of electric vehicles (EVs), Audi has continued to innovate. The e-tron GT and A6 e-tron exemplify this progress, proving that high-performance aerodynamics and striking design can coexist seamlessly. The e-tron GT uses active components to enhance aerodynamic efficiency, while the A6 e-tron incorporates numerous detailed engineering solutions to achieve optimal performance.
Electrification and Its Impact on Aerodynamics
Electrification has brought both advantages and challenges to aerodynamic design. One of the biggest benefits is the increased focus on efficiency, which is crucial for EVs due to their reliance on battery power. Aerodynamic drag is a major factor in energy consumption, making it financially viable to implement advanced aerodynamic solutions that were previously impractical.
Electric vehicles also offer unique advantages, such as a completely flat and closed underbody, which is ideal for aerodynamicists. Additionally, the efficiency of electric powertrains simplifies cooling requirements compared to traditional combustion engines.
However, there are challenges too. The size and weight of batteries necessitate larger wheels, which can increase aerodynamic resistance. To address this, Audi has focused on optimising wheel and tyre designs, offering aesthetically pleasing and efficient options for customers.
Why Aerodynamic Efficiency Matters
For drivers, especially in the electric era, aerodynamic efficiency translates into improved range and energy efficiency. Features like aero wheels and air suspension contribute to better performance, allowing drivers to experience the tangible benefits of aerodynamic optimisation.
Beyond performance, aerodynamic innovation also supports design freedom. By optimising less visible areas of the vehicle, such as the underbody and cooling systems, Audi ensures that its cars maintain a distinctive aesthetic while delivering top-tier performance.
Additionally, aeroacoustics play a crucial role in enhancing the driving experience by minimising wind noise, contributing to a quieter and more comfortable ride.
Cutting-Edge Tools for Aerodynamic Development
Audi’s wind tunnel in Ingolstadt is a state-of-the-art facility that combines full ground simulation for aerodynamics with advanced aeroacoustics capabilities. It has been in operation for 25 years, and its expertise is unmatched. The facility is maintained and operated in-house, allowing for continuous improvements and customisations.
Recent advancements in rapid prototyping, such as 3D printing, have significantly enhanced productivity and accuracy in wind tunnel testing. These tools have also raised the bar for computer simulations, enabling more precise and efficient development processes.
Audi uses powerful computing resources, including 60,000 processor cores, to run millions of CPU-hours of simulations. For example, over 3,000 simulations were conducted for the A6 e-tron alone, highlighting the importance of combining wind tunnel testing with digital analysis.
The A6 e-tron: A Milestone in Aerodynamics
The A6 e-tron stands as the most aerodynamically efficient Audi ever created. Key features include the optional virtual wing mirror, which improves range, and active inlet shutters that optimise cooling airflow. The optional air suspension further enhances aerodynamics by lowering the vehicle’s height during highway driving.
Every detail, from the rear diffuser to the tyre design, contributes to the A6 e-tron’s remarkable drag coefficient of 0.21. This achievement is the result of meticulous attention to detail and the seamless integration of various aerodynamic elements.
The Future of Vorsprung durch Technik
Looking ahead, Dr. Islam believes that Vorsprung durch Technik will drive Audi towards even more advanced analytical methods, such as artificial intelligence and expanded use of computer simulations. These tools will help push the boundaries of aerodynamic performance, bringing vehicles closer to the theoretical limits of drag reduction.
At the same time, Audi will continue to ensure that its vehicles retain their distinct identity, balancing innovation with brand heritage.
