With the Electric Twist Beam (eTB), ZF approaches a nearly space neutral integration of two electric drives in a twist beam rear axle. This functional integration in combination with the high speed drive concept lead to an attractive system weight. Because of the clever placement of the drive units in the trailing arm, the unsprung mass is just increased slightly. The system can be integrated in global platforms of the classes A and B without significant change in the car body. Individual chassis components - for example brakes and wheels - can be taken over unchanged from conventional vehicles. At the Aachen Colloquium 2013, system test results were reported in particular. The presentation of 2014 will show vehicle test results. A conventional B-class vehicle was rebuilt to an electric vehicle. Therefore, the standard twist beam axle was replaced by the eTB. With this vehicle, manifold aspects of close-to-the-wheel-drives were investigated: driving behavior - acoustic behavior. In relation to the selected vehicle segment, this driveline concept convinced at all tested points. A further application of eTB is seen in all-wheel drive hybrid vehicles with combustion engine at the front axle and the eTB at the rear axle.
Electric Twist Beam (eTB) - A report of the driving tests
2014
6 Seiten, Bilder, 2 Quellen
Conference paper
Storage medium
English
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