OPERATING STRATEGY FOR LIMITING THE POWER CONSUMPTION OF A BRUSHLESS MOTOR FOR ELECTRICALLY DRIVEN PASSENGER-CAR AIR-SPRING COMPRESSORS THROUGH MODE SWITCHING

A compressed-air supply system includes at least one compressed-air consumer, compressed-air lines, electrically controllable valves, a compressed-air controller for actuating the valves, a compressor having an electric motor as a drive, and a pressure reservoir. The compressed-air consumer can be pneumatically connected to the compressor and/or the pressure reservoir via the lines and the valves such that the compressed-air supply system can be operated either in an open or in a closed operating mode. The controller has an input for a current signal, which represents a motor current drawn or to be drawn by the electric motor. The controller is configured to actuate the valves in accordance with the open operating mode when a current signal is present at the current signal input, the current signal representing a mean motor current, the magnitude of which is equal to or greater than a maximum value for the motor current.