System and method for controlling a position sensorless permanen

Details System and method for controlling a position sensorless permanen System and method for controlling a position sensorless permanen

1999-11-22

2000-12-19

Masih, Karen

Electricity: motive power systems

Synchronous motor systems

318705, 318715, H02P 736

Patent

active

061631272

ABSTRACT:
A position sensorless interior permanent magnet drive system and methods for use in electric and hybrid electric vehicles. The interior permanent magnet drive system and method use two rotor position estimation techniques for low and high speed operation and an initial rotor magnet polarity detection technique used at stand-still conditions. The use of the two different rotor position estimation techniques in combination enhances system efficiency and accuracy.

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patent: 5880550 (1999-03-01), Fukao et al.
patent: 5903129 (1999-05-01), Okuno et al.
*Pending U.S. patent application Ser. No. 09/409,890.

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