Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Markus Gantikow

Nils Sauvlet

Tobias Roulet

Florian Fuhr

Holger Bartels

Stefan Wimmer

Heiko Mayer

Dominik Bender

Günter Poetsch

Christoph Bittner

Christian Wiedenbruegge

Alexander Weiβ

Nils Kallert

A method for detecting a defective damper device of a vehicle, including the following steps: monitoring the specific damper travel values (DW) of at least two wheel carriers of the vehicle in a monitoring period (UZ), determining the specific damper speeds (DG) and the specific damper accelerations (DB) on the basis of the monitored specific damper travel values (DW) in the monitoring period (UZ), acquiring the specific damper work values (DA) on the basis of the determined specific damper speeds (DG) and on the basis of the determined specific damper accelerations (DB), generating a comparison result (VE) from a comparison of the acquired specific damper work values (DA) with one another, and generating at least one specific status signal (SS) on the basis of the comparison result (VE) for the at least two wheel carriers.

Method for detecting a defective damper device of a vehicle

A drive system includes at least two drive devices, at least one of which is electric, that drive at least two drive axles, a power electronics system, an energy storage arrangement, and a control device. The control device includes a drive control module for providing a recuperation limiting value for each electric drive, a recuperation control module for combining the recuperation limiting values to form a maximum recuperation total limiting value, and a brake control module for providing a total braking torque requested by a driver or assistance system, such that it derives a recuperation total torque that is less than the recuperation total limiting value and also derives recuperation partial torques for each electric drive. In the case of a total braking torque that is greater than the recuperation total limiting value, the brake control module generates a hydraulic brake pressure and transmits it to the brake system.

Drive system for a motor vehicle and method for operating such a drive system

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Koenigsbach-Stein, Germany

Markus Gantikow