Abstract: The present invention relates to a device (100) for supplying fluid to an electric drive train for a motor vehicle, preferably for cooling and lubricating a transmission (50) and/or for supplying oil to an electric motor of the electric drive train. The device (100) comprises a main pump (10) configured as a hydraulic fixed displacement pump for delivering fluid from a fluid reservoir (40) to the electric drive train. The apparatus (100) further comprises at least one auxiliary pump (20) configured as a hydraulic fixed displacement pump. The main pump (10) and the auxiliary pump (20) are mechanically driven by the transmission (50) of the electric drive train in such a way that a fixed transmission ratio exists between a pumping rotation speed of the main pump (10) and a pumping rotation speed of the auxiliary pump (20), wherein the auxiliary pump (20) can be selectively connected by means of a controllable actuating device (30) for supplying fluid to the electric drive train.

Abstract: A method for performing open-loop or closed-loop control of a driver's cab mount of a motor vehicle, wherein the driver's cab mount has dampers whose damper force can be adjusted, wherein the motor vehicle can be operated in a first driving mode in which the motor vehicle automatically carries out vehicle guidance comprising both a longitudinal guidance operation and a transverse guidance operation of the motor vehicle, and in a second driving mode where the motor vehicle can be controlled by the driver, in which driving mode a driver of the motor vehicle is intended to carry out at least part of the vehicle guidance, wherein when the motor vehicle is operated in the first driving mode, the adjustable dampers of the driver's cab mount are actuated or adjusted in such a way that pitching or rolling movements are reduced compared to the second driving mode.

Abstract: A vehicle having a drive unit, a drive train, at least one driven wheel, an energy storage means and power electronics for supplying electrical loads in the vehicle. An electrical machine is electrically connected to the power electronics, which are electrically connected to an electrolyzer. One output of the electrolyzer is connected via a media line to an energy store, and one input of the electrolyzer is connected to a water tank. The storage contents of the energy store are supplied to a fuel cell system and/or to the drive unit for power production.