Yasa Claims Unofficial World Record for Electric motor Power Density
Oxford, UK – Yasa, the electric motor specialist acquired by Mercedes-Benz in 2021, has reportedly achieved a new unofficial world record for electric motor power density. The breakthrough was announced by Tim Woolmer, Chief Technology Officer at Yasa, via a LinkedIn post, though neither Yasa nor mercedes-Benz has issued an official statement or external verification.
Woolmer detailed the achievement, stating that the motor reached an unprecedented power density for its class, perhaps for any motor. The specific data cited includes sustained performance at 670 volts and 850 amps over five seconds. Crucially, the quoted weight of 13.1 kg encompasses all magnets and mechanical components, including the housing, rotor structure, and shaft, intended for a production model.
Yasa is renowned for its compact axial flux motors. These motors were prominently featured in the Mercedes-benz Vision One-Eleven show car unveiled in 2023. More recently, the carmaker showcased the AMG GT XX concept, which integrates three Yasa axial flux units, collectively promising an output of 1,000 kW. It remains unclear if the record-breaking motor is identical to those used in the AMG GT XX concept.
highlighting the motor’s production readiness, Woolmer emphasized that it was not a bespoke development using exotic materials like cobalt-iron laminations or 3D-printed parts.Rather, it is indeed designed for scalability to sports car volumes, ranging from 10,000 to 50,000 units annually, at a viable cost. this suggests a strong possibility of its integration into future Mercedes models, including the AMG GT XX.
Woolmer also indicated that Yasa’s technological advancements are ongoing, with further developments anticipated. He expressed gratitude to Drive System Design for pushing their dynamometer beyond its 500 kW limit, signaling that the company is poised for further testing on larger equipment this summer.
