DeepDrive's MG 250 generator brings dual-rotor power to PHEVs

DeepDrive's dual-rotor mission began around four years ago, and the company feels like its time has finally come. At IAA Mobility 2025, the Munich-based start-up introduced a new version of its dual-rotor, radial-flux motor for use as a compact generator for range extenders. The MG 250 provides 120 kW continuous power and can be coupled directly to a crankshaft, eliminating the need for a gearbox.

DeepDrive's dual-rotor technology uses inner and outer rotors surrounding a stator in a U-shape. Felix Poernbacher, DeepDrive co-founder and co-CEO, told SAE Media that the technology results in higher energy density and a more compact design. The MG 250 was engineered for 96.9% peak efficiency and “an outstanding efficiency map across the continuous operating window,” the company said. The MG 250 also has an integrated SiC inverter and can be configured for oil or water-glycol cooling.