Valeo and MAHLE to extend magnet-free electric motor portfolio
Introducing the iBEE system (inner Brushless Electrical Excitation), this cutting-edge technology is expected to highly improve performance and efficiency of magnet free electric motors.
Valeo and MAHLE have joined forces to develop an innovative magnet-free electric axle system, targeting upper segment electric vehicles with peak power ranging from 220 kW to 350 kW. Introducing the iBEE system (inner Brushless Electrical Excitation), this cutting-edge technology is expected to highly improve performance and efficiency of magnet free electric motors.
Valeo’s first EESM development is based on a cooperation with a European OEM launched in 2022 in order to create a new magnet-free electric motor generation (EESM). The initial targets of the project were double; first to get an all-in-one architecture with a new stator and cooling technology in order to increase by 30% the power density compared to the current motors equipping the current OEM’s vehicles on the road. Secondly, to shrink its carbon footprint by 30% vs. an electric motor equipped with magnets (PMSM). A validation phase for more than 6 months was successfully ended with results level over the initial expectations in terms of power and efficiency especially thanks to Valeo inverter expertise.
Electric motor technology from MAHLE and Valeo
As part of its electrification strategy MAHLE has been focusing on developing electric drive systems. Its contactless transmitter technology for magnet-free electric motors is testament to the company’s strong expertise in this field. Thanks to its high maturity level it is a key enabler for the next evolution of EESM based e-axles.
Xavier Dupont, Valeo Power Division CEO, has stated: “This cooperation with MAHLE is a perfect match. MAHLE develops the EESM rotor and their brushless excitation system. Based on our power electronics know-how, Valeo provides a dedicated control of this electric motor and brushless system embedded in our inverter. This partnership allows Valeo to complete its EESM portfolio towards upper segment and is key to support the evolution of the automotive industry towards more innovative sustainable solutions.”
“In this project two front runners of electrification are joining forces. The new e-axle will benefit from MAHLE’s expertise in contactless transmitter technology. Together we will be setting a new benchmark in packaging and efficiency for EESM based e-axles and taking the next step for our customers towards future mobility”, added Martin Wellhoeffer, Member of the MAHLE Group Management Board.
