Rear-mounted e-axle unit for mini- and compact vehicles - With no permanent magnets, materials costs reduced. - Concentrated winding minimizes copper usage and motor size. - Unique shape and control method realizes low torque ripple.
Ball bearings are mainstream for use in drive motors, but Daido Metal has developed plain bearings for drive motors. It has the advantage of being lighter and more space-saving than rolling bearings. Cooperation with OEMs is required for the bearing lubrication mechanism.
×
Supplier Database
High-voltage e-Axle drive system EMR4 2025 JSAE Automotive Engineering Exposition Schaeffler AG
The overall efficiency is higher than 94%, which is 1.5% higher than the typical working efficiency of the previous generation of products. The dry cavity design and the variable oil circuit design of the rotor/reducer reduce the oil stirring loss by 3.6% and the energy consumption per 100 kilometers is reduced by 0.2kWh.