Patent ID: 11936316
Assignee: STEERING SOLUTIONS IP HOLDING CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for controlling a permanent magnet synchronous machine (PMSM) having windings, comprising:
determining an estimated back-electromotive force (BEMF) generated in windings of the PMSM based on an estimated voltage applied to the windings of the PMSM, an estimated motor current of the PMSM, an estimated motor circuit resistance, and an estimated synchronous inductance of the PMSM;
determining an estimated permanent magnet (PM) flux linkage in the PMSM based on the estimated motor current of the PMSM;
determining a BEMF correction term based on the estimated PM flux linkage; and
determining an estimated rotor flux space vector based on the estimated BEMF and the BEMF correction term.