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Stellantis Invests $29.5 Million In Wind Tunnel Technology To Improve Electric Vehicle Aerodynamics
Stellantis has introduced its advanced Moving Ground Plane (MGP) technology, a $29.5 million investment, at its research and technical centre in Auburn Hills, Michigan. This upgraded wind tunnel aims to measure and reduce airflow resistance from wheels and tyres, which can contribute up to 10% of total real-world aerodynamic drag. Enhancing aerodynamic efficiency is vital for extending the driving range of electric vehicles on a single charge.
The MGP technology will benefit various Stellantis brands globally, regardless of their power source. Aerodynamic optimisation is crucial for improving electric vehicle ranges and potentially reducing battery sizes, leading to cost and weight savings. Mark Champine, senior vice president and head of North America engineering technical centres, stated, "Range is a core consideration for customers who are transitioning to cleaner mobility through battery power."
The upgraded aero-acoustic wind tunnel simulates real-world travel while keeping test vehicles stationary. Belts suspended by air cushions allow wheel movement at all four corners, with a fifth belt running beneath the vehicle to mimic on-road conditions. This realistic simulation enables precise testing and aerodynamic improvements. Champine noted that improved aerodynamics could lead to potential battery-size reductions for electric vehicles.
This facility upgrade complements virtual development tools by providing real-time data collection and increased automation capabilities. The new system allows changes to wheelbase and track testing in minutes instead of hours, speeding up the market process. The investment underscores Stellantis' commitment to becoming carbon net-zero by 2038 as part of its leadership in climate-change mitigation.
The Auburn Hills facility can accommodate larger vehicles based on the STLA Large and STLA Frame platforms. MGP technology plays a significant role in developing battery electric vehicles (BEVs), as outlined in Stellantis' Dare Forward 2030 strategic plan. By 2030, Stellantis aims for BEVs to account for 50% of U.S. sales and 100% of European sales, with over 75 BEVs offered globally.
The upgraded wind tunnel also enhances automation capabilities. Changes that previously took hours now take minutes thanks to this new technology. This advancement leads to faster market readiness by combining real-time data collection with increased automation.
Historical Context and Future Goals
Stellantis has a rich history of aerodynamic innovation dating back to 1929 when Orville Wright led the construction of one of the first automotive wind tunnels for Chrysler Corporation. The Chrysler AirFlow was the first vehicle designed using a wind tunnel in 1934. Notably, Chrysler also designed the Mercury Redstone Rocket used in NASA's early space flights.
The investment includes a new annex for staging test vehicles and an outbuilding supporting the MGP system, which uses high-pressure compressed air to drive belts at speeds up to 140 mph. The measuring platform weighs 137 tons and rests on a concrete foundation supported by a steel frame.
The wind tunnel has been operational since 2002, capable of generating wind speeds exceeding 160 mph. It continues Stellantis' legacy of aerodynamic leadership with innovations like NASCAR's roof flap developed at Auburn Hills.
Stellantis North America is renowned for producing iconic brands such as Jeep, Chrysler, Dodge//SRT, Ram, Alfa Romeo, and Fiat. The company aims to provide clean mobility solutions while executing its Dare Forward 2030 plan towards carbon neutrality by 2038.
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