METHOD AND APPARATUS FOR HIGH PERFORMANCE PERMANENT MAGNET MOTOR SPEED CONTROL WITH LIMITED POSITION INFORMATION

Details for Australian Patent Application No. 2002322770 (hide)

Owner BALLARD POWER SYSTEMS CORPORATION

Inventors HAMPO, Richard, J.; ZHAO, Yifan

Pub. Number AU-A-2002322770

PCT Number PCT/US02/24094

PCT Pub. Number WO2003/012974

Priority 60/309,352 02.08.01 US

Filing date 29 July 2002

Wipo publication date 17 February 2003

International Classifications

H02P 021/00 Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation

H02P 006/16 Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position

H02P 006/08 Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position - Arrangements for controlling the speed or torque of a single motor

Event Publications

16 January 2003 Complete Application Filed

  Priority application(s): 60/309,352 02.08.01 US

29 May 2003 Application Open to Public Inspection

  Published as AU-A-2002322770

6 May 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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