27. Aachener Kolloquium Fahrzeug- und Motorentechnik 2018
quattro with e-tron Technology – Electric All-Wheel Drive System with Wheel Selective Torque Control
Autoren
B.Eng. (FH) Marc Baur, Dr.-Ing. Christian Graf, Dr.-Ing. Michael Wein,
Dr.-Ing. Sebastian Strasser, Dr.-Ing. Ralf Schwarz,
Audi AG, Ingolstadt
Zusammenfassung
The quattro with e-tron technology consists of two powered axles, whose torque distribution is controlled by an all-wheel drive controller. To overcome the limitations of the installed system performance, the actuation of all four wheel brakes is also integrated into the all-wheel drive controller. In this paper the architecture of the electric powertrain, the torque-vectoring functions and the all-wheel controller software with its torque- and slip-distribution are presented in detail. Measurement results show the superior properties of the quattro with e-tron technology regarding traction as well as driving dynamics.
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