Mahle GmbH has developed a new electric motor that can deliver high power indefinitely. It can be built even without rare elements.
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Automotive parts supplier Mahle GmbH has developed what it claims is the most durable electric motor. The new cooling concept allows the electric traction motor to run at high power virtually indefinitely. Male describes the electric motor as clean, light, efficient and with a construction that does not require precious metals. It should be suitable not only for cars, but also for commercial vehicles, or for construction or farm vehicles.
Mahle calls the new product Superior Continuous Torque E-motor, or simply SCT E-motor for short. Mahle’s Martin Berger said of the electric motor: “Building large electric motors that deliver high power for a limited time is easy. But what was missing on the market so far were durable yet compact drives for electric vehicles that would not limit them in everyday operation. Our new SCT E-motor is the solution.“
According to the manufacturer, the new electric motor should be an ideal replacement for the internal combustion engine in vehicles of all sizes. Despite its compact dimensions and low weight, it can continuously deliver over 90% of its maximum power. It was designed to be particularly efficient in a certain range of revolutions. The durability of the electric motor has been achieved through the use of innovative integrated oil cooling, which also allows the car to further utilize waste heat.
According to Mahle, the fact that the new electric motor is able to provide such a high part of its maximum power for a long time (even permanently) is unique on the market, and thanks to this, the SCT E-motor can be used even in very demanding conditions. As an example, Mahle cites an electric truck driving through a mountain pass or repeated sprints in a personal electric car. It is said that the electric motors available so far are not completely suitable for these conditions.
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The electric motor uses neodymium magnets, which are currently the strongest permanent magnets that can be produced. But the SCT E-motor can also be built without the use of neodymium, where the magnets are replaced by a unique non-contact transformer – again Mahle’s own design. The only drawback is the need for a little more space for construction.
In the press release, Mahle further highlights the low weight of the unit, which as a result means less material consumption during production. In the case of commercial vehicles, Mahle mentions that the saved weight can be used for cargo. The exhibition premiere of the SCT E-motor is not planned for September 2022, when the IAA Transportation in Hannover will take place.
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