(19)
(11) EP 1 430 587 A1

(12)

(43) Date of publication:
23.06.2004 Bulletin 2004/26

(21) Application number: 01977103.9

(22) Date of filing: 14.09.2001
(51) International Patent Classification (IPC)7: H02K 21/12
(86) International application number:
PCT/US2001/028812
(87) International publication number:
WO 2003/026105 (27.03.2003 Gazette 2003/13)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(71) Applicant: Delphi Technologies, Inc.
Troy, MI 48098-2815 (US)

(72) Inventors:
  • SEBASTIAN, Tomy
    Saginaw, MI 48603 (US)
  • MURTHY, Sunil Keshava
    Austin, TX 78727 (US)
  • LIU, Buyun
    Ann Arbor, MI 48105 (US)
  • BERGGREN, Scott R.
    Saginaw, MI 48603 (US)

(74) Representative: Denton, Michael John et al
Delphi European Headquarters,64 avenue de la Plaine de France,Paris Nord II,BP 60059,Tremblay-en-France
95972 Roissy Charles de Gaulle Cédex
95972 Roissy Charles de Gaulle Cédex (FR)

   


(54) METHOD AND APPARATUS FOR TORQUE RIPPLE REDUCTION IN SINUSOIDALLY EXCITED BRUSHLESS PERMANENT MAGNET MOTORS