The Audi e-tron S Sportback - electric torque vectoring

" As long as the Audi e-tron S and the e-tron S Sportback are driving in normal driving style, only the rear electric motors work for reasons of efficiency. The front one is activated at lightning speed when the driver demands more power - or predictively before the traction decreases. In addition to the electric all-wheel drive, there is now electric torque vectoring: each of the rear electric motors sends the drive torque directly to the respective wheel via an input gearbox, a mechanical differential no longer exists. The needs-based regulation only takes milliseconds and it can manage very high drive torques. Especially when the driver challenges the electrically powered S models on a winding route, they experience their excellent agility and traction. Its character is more rear-focused and even sportier than its technical starting point. If the ESC stabilization control is set to “Sport” and the Audi drive select dynamic handling system is set to maximum performance in “dynamic” mode, the drive layout allows high lateral dynamics and, if required, controlled drifts. Near the physical limit, the relieved front wheel on the inside of the curve is slightly decelerated via the wheel brake, which prevents slippage and further refines the handling. The sharp dynamics, the high precision and the uncompromising safety are based on the close networking of all control units that manage the drive and chassis systems. "