Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate
2005-01-25
2005-01-25
Masih, Karen (Department: 2837)
Electricity: motive power systems
Switched reluctance motor commutation control
C318S132000, C318S434000, C318S569000, C318S567000
Reexamination Certificate
active
06847177
ABSTRACT:
An apparatus and method of controlling an electric motor (26) having a rotor (34) that is formed from a series of laminations (48) and has a plurality of rotor poles (36) and a stator (30) that encircles the rotor (34) and has a plurality of stator poles (32), each with a respective stator winding (38). A first sensor (46) senses actual inductance in the respective stator winding (38). A second sensor (46) senses a position of the rotor (34) relative to the stator (30). A controller (42) determines a reference inductance based on the rotor position signal, determines a difference between the actual inductance and the reference inductance, and prevents further energization of the stator windings (38) when the difference exceeds a predetermined amount.
REFERENCES:
patent: 5625239 (1997-04-01), Persson et al.
patent: 5661381 (1997-08-01), Blackburn
patent: 5796237 (1998-08-01), Yamakawa
patent: 5796248 (1998-08-01), Weber
patent: 20030020421 (2003-01-01), Vu et al.
patent: 20030128026 (2003-07-01), Lutz
Gluch Mark W.
Miller Joseph D.
Masih Karen
Tarolli, Sundheim Covell & Tummino L.L.P.
TRW Automotive U.S. LLC
LandOfFree
Apparatus and method for determining rotor lamination shifts... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for determining rotor lamination shifts..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for determining rotor lamination shifts... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3383437