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Enlarge / Formulation 1 battery tech and light-weight, compact, however highly effective electrical motors would energy the Mercedes-Benz Imaginative and prescient One-Eleven.Jonathan Gitlin
CARLSBAD, CALIF.—In 1969, a few brief months after people first walked on the floor of the moon, Mercedes-Benz debuted a revolutionary new idea automotive at that 12 months’s Frankfurt auto present. Referred to as the C111, this orange-and-black coupe featured dramatic gullwing doorways but additionally served as a testbed for brand spanking new know-how, together with a four-rotor Wankel rotary engine. Now, 54 years later, it has drawn inspiration from that automotive for its latest idea, the Imaginative and prescient One-Eleven. It, too, is orange, and it additionally showcases new know-how—on this case very small and light-weight axial flux electrical motors.
Axial flux motors aren’t precisely new—most optical drives use them, for instance, however they don’t seem to be quite common in automotive purposes. The one-off Jeep Magneto used axial flux motors, as do manufacturing hybrid supercars from Acura, McLaren, and Ferrari. Within the case of the Italian OEM, it sources the motors from Yasa, a British firm that was acquired by Mercedes in 2021.
Commercial
Just like the far more widespread radial flux motor, an axial flux motor makes use of magnets (on this case, everlasting magnets), tender iron to move the flux, copper as the fabric that is linked to the inverter, and an aluminum housing.
An exploded diagram of an axial flux electrical motor (left) and a radial flux electrical motor (proper).
Mercedes-Benz
Formulation 1 battery tech and light-weight, compact, however highly effective electrical motors would energy the Mercedes-Benz Imaginative and prescient One-Eleven.
Mercedes-Benz
“Nevertheless, that is the place the similarity ends,” stated Tim Woolmer, who based Yasa in 2009 to commercialize his PhD analysis. “So in a radial flux machine, the flux travels out from the everlasting magnets into the stator, across the stator yoke after which it drops again into the rotor forming a loop. So the flux within the airgap is touring radially, therefore the title “radial flux machine,” he defined.
“On the axial flux machine with two discs and one stator, the flux on this case mainly travels from rotor to rotor straight via the stator, then travels across the again metal within the rotor after which again once more via the stator via a special coil,” Woolmer stated.
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