Method and apparatus for operating electric motor
The invention relates to a method and apparatus for operating an electric motor. In a method for operating an electric motor (10) which is driven by a power electronic device (14), a motor temperature (T) is determined from an initial temperature (t) at an initial time point through a motor temperat...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention relates to a method and apparatus for operating an electric motor. In a method for operating an electric motor (10) which is driven by a power electronic device (14), a motor temperature (T) is determined from an initial temperature (t) at an initial time point through a motor temperature model. In this case, the initial temperature (t) is calculated through at least one measured engine parameter (R) according to the predetermined formula at the initial time point, and the predetermined formula is automatically recalibrated for calculating the initial temperature. |
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