METHOD FOR CONTINUOUS CONDITION MONITORING OF AN ELECTRIC MOTOR

The invention relates to a method (100) for continuous condition monitoring of an electric motor (122) comprising a rotor and a stator and at least two motor phases (m(1), m(2)) for inducing a rotary motion of the rotor relative to the stator, wherein, in one operating mode of the electric motor, a first energy loss (P1) is associated with the first motor phase (m(1)) and a second energy loss (P2) is associated with the second motor phase (m(2)), and the temperature (102) during operation of the electric motor is determined by firstly calculating (104) a first temperature in order to estimate a temperature of the first motor phase (m(1)), the first temperature calculation (104) incorporating an energy loss estimation (106), in which at least one first energy loss value (108) of the first motor phase (m(1)) is calculated, and a temperature estimation (116), in which a temperature of the first motor phase (m(1)) dependent on the first energy loss value (108) is calculated as a first temperature value (114), and