![]() ![]() The most important aspect of axial motors is form-factor potential, according to Malte Jaensch, professor of sustainable mobile drivetrains at the TUM School of Engineering and Design in Munich. They recognise the importance of having long-term differentiation in these spaces, so they have to bring it in-house.” “The batteries, the motors, this is their core technology now. The ANE report quoted Professor Woolmer: “If you look at the history of automotive generally, the auto companies have wanted to have the engine, their core technology, in-house.” ![]() Mercedes-Benz acquired Yasa in July last year for an undisclosed sum and stated that it will put its axial flux motors in AMG models scheduled to be launched in 2025. The motor design was planned to be used in Jaguar Land Rover vehicles specifically in the C-X75, a hybrid-electric two-seater with enough horsepower to rival the Porsche 918 Spyder, McLaren P1 and Ferrari LaFerrari.īut JLR couldn’t stump up the funds to continue with the program so Woolmer’s clever technology went into the Koenigsegg Regera hybrid hypercar and then to the Ferrari SF90. Yasa’s motors are by Tim Woolmer, who focused on the technology for his electrical engineering PhD at the University of Oxford. “England-based electric motor developer/manufacturer Yasa already supplies motors used in Ferrari’s SF90 and 296 GTB plug-in hybrids, and that unit uses a few mere kilograms of iron for its stators, reducing the mass of the machines by as much as 85 per cent,” says ANE. Since the motor generates torque at a bigger diameter, less material is needed. This leads the flow of current - the flux - to travel axially through the machine, rather than radially out from the centre. On the other hand, in axial motors, rather than have a rotor spin inside a stator, disc-shaped rotors spin alongside a central stator. The magnetic force created by a stationary stator surrounding a rotating rotor produces the torque that turns the wheels of the vehicle. When these coils are energised, they become electromagnets with attractive and repulsive forces. The ANE report explained how a conventional EV’s motor works thus: when a driver pushes the accelerator it pushes hundreds - and in some cases thousands - of amps of electric current to copper coils. “It will make use of the small size of the motor.” Markus Schaefer, Mercedes’s chief technology officer told ANE: “The forthcoming AMG electric vehicle platform gives a power-to-weight ratio that is really a record number, and much better than conventional motors.” “In the combustion age, quicker times off the line and higher top speeds were achieved with more engine cylinders, but manufacturers will differentiate performance EVs by getting the most out of batteries with lighter and more efficient motors,” said the ANE report. These high-end motors are considered to be crucial to brands like AMG and Ferrari as they race to electrify the high-performance vehicles that earn prestige and bumper profits.Īccording to a report in Automotive News Europe (ANE), all EVs offer the sensation of instant acceleration, from Nissan’s Leaf to Tesla’s Model S Plaid. Said axial flux motors are much smaller than predominantly used radial motors yet pack a more powerful punch. News has come to light that the two car-makers are eyeing axial flux electric motors to fulfil their requirements.Īxial flux motors have the capability to deliver extra power out of a battery pack when a driver pushes the accelerator in a performance car. But they are prohibitively expensive and have constrained availability.įerrari and AMG have been looking for an electric edge sharp enough to satisfy “production” supercar customers and that means high-end electric motors. ![]() The horse may have already bolted in that regard, with a plethora of so called electric hyper-cars available or in production/under development. It leaves supercar manufacturers like Ferrari and Mercedes-AMG in a precarious position as to how they get electrified performance commensurate with their reputation such that they leave all the rest behind. Now, as we transition to battery electric vehicles, there is increasing demand for “elegant” technology rather than the ability to burn large amounts of petrol quickly. SUPERCAR performance used to be predicated on the number and capacity of cylinders in an engine or forced induction. ![]()
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