Transmission Pairs Electric Motor for Smoother Shifts

Italy's Oerlikon Graziano SpA has unveiled a new automatic transmission concept for high-performance cars that uses an electric motor to provide powertrain torque during upshifts.

The Torino-based company claims its OGeco transmission is lighter, smoother, more efficient and less expensive than dual-clutch alternatives.

The gearbox was designed for high-performance vehicles with a transaxle transmission configuration. The system features a twin-shaft layout and two-speed electric motor that reduces "shift shock" to the powertrain by providing torque fill during gear shifts. Oerlikon Graziano says the combination enables smoother low-speed shifts without compromising quick shifts during more spirited driving.

The company expects to begin road-testing the OGeco system early next year in a front-engine, rear-drive high-performance demonstrator vehicle. The transmission, electric motor and ancillary equipment all fit into the space that would otherwise be occupied by a conventional 7-speed dual-clutch transmission.

Oerlikon Graziano presented a technical paper about its new gearbox on Dec. 4 at the CTI Symposium in Berlin.