Patent Number: 6,801,012

Title: Sensorless control of switched reluctance electric machines

Abstract: A system and methodology for control of a switched reluctance electric machine comprising: a switched reluctance electric machine including a sensor generating and transmitting a sensor signal indicative of an operating characteristic; a controller operatively coupled to the switched reluctance motor and the sensor; and the controller executing a method. The method comprises: probing a selected diagnostic phase with a pulse injection process; measuring an actual operating characteristic of the switched reluctance electric machine; computing an inductance based on the actual operating characteristic and correlating the inductance with a position to formulate an estimated position; modeling the switched reluctance electric machine to formulate an observer-based estimated position; selecting at one of the estimated position, the observer-based estimated position, and a combination thereof to formulate a selected position of the switched reluctance machine; and controlling said switched reluctance machine based on said selected position and a command.

Inventors: Islam; Mohammad S. (Saginaw, MI), Mir; Sayeed A. (Saginaw, MI), Sebastian; Tomy (Saginaw, MI), Husain; Iqbal (Copley, OH)

Assignee: Delphi Technologies, Inc.

International Classification: H02P 25/08 (20060101); H02P 25/02 (20060101); H02P 001/46 ()

Expiration Date: 10/05/2021