GKN demos eTwinster 2-speed, torque-vectoring BEV transmission

GKN Automotive unveiled what it claims is the world's first 2-speed, torque-vectoring transmission for battery electric vehicles (BEVs). Featured on GKN's 2019 Technology Demonstrator (GTD19)-a Jeep Renegade-based prototype-the EV-enhancing tranny was revealed to media during GKN's annual winter testing program in Arjeplog, Sweden.

Combining several advances in GKN's driveline technologies, the coaxial eTwinster transmission could improve BEV efficiency as well as straight-line and handling performance. The new 2-speed “seamless shift” eTransmission has the potential to extend vehicle range while also providing increased torque for improved acceleration and a higher top speed, all while using smaller electric motors. Efficiency and further powertrain downsizing are enhanced by the eTwinster's coaxial layout, while improved stability and dynamic performance are possible thanks to its torque-vectoring capabilities.