Revolutionary Electric Motor Redefines Power-to-Weight Ratios




Experience Unprecedented Power: The Future of Electric Drive is Here!
Unveiling a New Era of Electric Powertrains: The Yasa Breakthrough
A lesser-known British company, Yasa, has sent shockwaves through the electric vehicle sector with its latest axial flux electric motor. This innovative creation has established an unofficial world record for power density, a metric crucial for the performance and efficiency of electric drive units.
Astonishing Performance in a Compact Package: Numbers That Speak Volumes
During rigorous testing, Yasa's advanced prototype motor achieved an astonishing output of 550 kilowatts (737 horsepower). What makes this feat even more remarkable is the motor's incredibly low weight of just 28.8 pounds (13.1 kilograms). This translates to an extraordinary power-to-weight ratio of 42 kW/kg, setting a new industry standard.
Redefining Efficiency: A Stark Comparison with Current Market Leaders
To put Yasa's achievement into perspective, consider the widely used Tesla Rear Drive Unit found in models like the Model 3 and Model Y. This unit, while capable, delivers a maximum of 239 kW (320 hp) and weighs approximately 176 pounds (80 kg). Yasa's motor, therefore, provides more than double the power at only one-sixth of the weight, showcasing a leap in engineering prowess.
Beyond Exotic Materials: Innovation Rooted in Practicality
Tim Woolmer, Yasa's Chief Technology Officer, recently shared this monumental news, emphasizing that this impressive performance was achieved without the use of rare or prohibitively expensive materials such as cobalt-iron laminations or Litz wire. This crucial detail suggests that the mass production of these highly efficient motors at a reasonable cost is not merely a distant aspiration but a tangible goal.
Transformative Impact on the EV Industry: Lighter Vehicles, Longer Ranges
This development carries immense implications for the electric vehicle industry. The ability to significantly reduce the weight of drive units directly contributes to lighter overall vehicle designs. A lighter EV requires a smaller battery pack to achieve the same range, which in turn leads to substantial cost reductions through the decreased need for battery cells. This innovation could make electric vehicles more accessible and desirable for a broader market.
From Exclusive Supercars to Mainstream Adoption: A Glimpse into the Future
Historically, Yasa's axial flux motors have been integrated into high-performance hybrid supercars, including prestigious models like the Lamborghini Revuelto, Ferrari SF90 Stradale, Lamborghini Temerario, and Ferrari 296 GTB. However, with Mercedes-Benz's acquisition of Yasa in 2021, these compact and powerful drive units are poised to enter the all-electric supercar domain. For instance, the Mercedes-Benz AMG GT XX Concept incorporates three of these motors, culminating in a combined output exceeding 1,000 kW (1,360 hp), hinting at the vast potential for future electric vehicle applications.