Abstract: A computer-implemented method of monitoring and/or controlling an electro-mechanical device, such as an electrical motor and/or generator, includes determining a first probability distribution of a virtual measurement variable, such as temperature at a predetermined position, of the electro-mechanical device. A confidence level is determined for a first value of the virtual measurement variable based on the first probability distribution. An operating mode of the electro-mechanical device is changed based on the confidence level, and/or an indication is displayed on a display. The indication instructs a user to change the operating mode of the electro-mechanical device.

Abstract: The invention relates to a disc brake having at least one brake disc, at least one friction lining and at least one actuating apparatus, wherein the actuating apparatus comprises at least one actuating piston which is movably housed in a housing of the disc brake and a sealing element having a first sealing surface configured to produce a sealing contact to a contact surface of the housing, and a second sealing surface configured to produce a sealing contact to a contact surface of the actuating piston in order to seal the actuating piston to the housing, wherein at least one of the sealing surfaces comprises a friction surface configured so that it maintains the sealing contact to the contact surface in the case of a movement of the actuating piston relative to the housing and furthermore allows a frictionless movement of the actuating piston relative to the housing.