MAHLE is combining the strengths of its SCT and MCT electric motors

MAHLE has developed a new technology kit for electric motors that it says combines the advantages of its “benchmark” SCT and MCT electric motors.
What it calls the “perfect motor” combines permanently high peak power, contactless and thus wear-free power transmission, the absence of rare earths, and maximum efficiency.
“With this unique technology toolbox for electric motors, we can offer our customers customised electrification solutions for any vehicle class, application, or even brand philosophy,” MAHLE Group Management Board Chairman and Chief Executive Officer, Arnd Franz, said.
Electrification is a future strategy field within the framework of the MAHLE 2030+ Group strategy. Other fields include thermal management and highly efficient, green combustion engines.
The MCT (Magnet-free Contactless Transmitter) and the endurance champion SCT (Superior Continuous Torque) electric motor, which operate contactlessly and without rare earths, are among the latest innovations from the Stuttgart-based automotive supplier in the field of electric drives.
Dispensing with rare earths in MCT technology not only makes production more environmentally friendly, but also brings advantages in terms of costs and raw material security.
MAHLE says it is particularly efficient – at almost all operating points. The MCT electric motor shows its efficiency advantages to the full, especially in those areas that are frequently used in real road traffic, it says.
The MCT electric motor is characterised by high durability, because the necessary transmission of electric currents between the rotating and stationary parts inside the motor is contactless and thus wear-free. Therefore, the motor is maintenance-free and suitable for a wide range of applications, says MAHLE.
With the SCT electric motor, MAHLE says it currently has the most enduring electric motor in its range. The traction motor can operate at high power for an unlimited period of time.
MAHLE explains that this technological leap was made possible by a new cooling concept. The innovative integrated oil cooling not only makes the e-motor robust, but at the same time also allows the waste heat generated to be used in the vehicle’s overall system.
MAHLE says the new e-motor is unrivalled in its small size, light weight and efficiency, stating that the extremely compact design also results in a material cost and weight advantage – a lighter motor requires less material in production and at the same time increases the possible payload in commercial vehicles.
The MCT electric motor shows high efficiency over a wide speed/torque range. The SCT electric motor, on the other hand, is designed to achieve the highest efficiencies at the optimised main operating points.
Another strength of the SCT electric motor is its high continuous output. This is despite the very compact and lightweight design – 93 to 100 percent of its peak power, as measurement results prove.
MAHLE says this unprecedentedly high ratio, which is unique on the market, enables it to be used in electric vehicles of all kinds, even under very demanding conditions.
Classic examples include driving an e-truck over mountain passes or repeated acceleration of a battery-electric passenger car.
These scenarios are only covered to a limited extent by e-motors available to date, says MAHLE.
MAHLE showcased the new technology kit and other technical innovations for sustainable mobility at the IAA Mobility international automotive trade fair in Munich.

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