Method for Determining the Motor Temperature And/or Ambient Temperature for a Rotating Machine

Abstract

A method for determining the motor temperature and/or ambient temperature for a rotating machine, the method includes controlling a power consumption of an electric motor with at least one electronic power module, which controls the power consumption of the motor by open-loop/closed-loop control. The method also includes providing a means for sensing the operating temperature of the power module and for sensing the motor current. The method also includes providing, for the power module and the motor, a cooling means that, during operation, generates a cooling effect for the motor and a cooling effect for the power module that are interdependent in a defined manner. The motor temperature and/or the ambient temperature are/is estimated on the basis of the sensed operating temperature of the power module and the sensed motor current.

Dependencies are inferred from the claim text.