CPC H02P 21/141 (2013.01) [B60K 1/00 (2013.01); B60L 53/20 (2019.02); H02P 21/0025 (2013.01); H02P 21/16 (2016.02); H02P 21/22 (2016.02); H02P 2207/05 (2013.01)] | 18 Claims |
1. A method for adapting control parameters of an electric traction machine being a permanent magnetic synchronous motor, PMSM, the method comprising:
providing a flux linkage of permanent magnets (PM flux) in the PMSM by decoupling the PMSM from drive shaft and performing a first retardation test to measure the flux linkage of the permanent magnets (PM flux) in the PMSM;
performing a stand still characterisation of the PMSM to estimate linked magnetic flux as a function of current;
adding the PM flux to the estimated linked magnetic flux to provide a flux characteristic of the PMSM;
adapting the control parameters of the PMSM based on the flux characteristic.
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