Abstract: A method and device supply a vehicle with main and auxiliary air, wherein the device includes a compressor driven via an electric motor for generating compressed air to fill at least one main air tank for supplying pneumatic units of the vehicle, wherein the vehicle has at least one first and second power source for supplying electric energy, wherein a pneumatic actuator that upgrades the vehicle and activates the first power source is provided with the compressed air produced by the compressor in that, in that phase, the second power source feeds the electric motor of the compressor, wherein a switching valve device supplies the compressed air for upgrading to an auxiliary air tank associated with the pneumatic actuator, and otherwise the switching valve device supplies the compressed air produced by the to the main air tank.

Abstract: A device and method controls the different energy sources for supplying a vehicle with main and auxiliary air, for which compressed air is produced for pressurizing a main air tank and an auxiliary air tank using at least one compressor. That compressor is driven via a respective associated electric motor, wherein the main air is supplied via an external primary energy source and the auxiliary air is supplied at least partially via an internal secondary energy source which is weaker in contrast. There is a shift between the two different energy sources depending on the operating status of the vehicle, wherein the auxiliary air supply is switched off by decoupling the electric motor from the secondary energy source.

Abstract: A method and device supply a vehicle with main and auxiliary air, wherein the device includes a compressor driven via an electric motor for generating compressed air to fill at least one main air tank for supplying pneumatic units of the vehicle, wherein the vehicle has at least one first and second power source for supplying electric energy, wherein a pneumatic actuator that upgrades the vehicle and activates the first power source is provided with the compressed air produced by the compressor in that, in that phase, the second power source feeds the electric motor of the compressor, wherein a switching valve device supplies the compressed air for upgrading to an auxiliary air tank associated with the pneumatic actuator, and otherwise the switching valve device supplies the compressed air produced by the to the main air tank.

Abstract: A device and method controls the different energy sources for supplying a vehicle with main and auxiliary air, for which compressed air is produced for pressurizing a main air tank and an auxiliary air tank using at least one compressor. That compressor is driven via a respective associated electric motor, wherein the main air is supplied via an external primary energy source and the auxiliary air is supplied at least partially via an internal secondary energy source which is weaker in contrast. There is a shift between the two different energy sources depending on the operating status of the vehicle, wherein the auxiliary air supply is switched off by decoupling the electric motor from the secondary energy source.