Global Patent Index - EP 1317371 A4

EP 1317371 A4 20090506 - METHOD AND APPARATUS FOR TORQUE CONTROL OF A MACHINE

Title (en)

METHOD AND APPARATUS FOR TORQUE CONTROL OF A MACHINE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR DREHMOMENTREGELUNG EINER MASCHINE

Title (fr)

PROCEDE ET DISPOSITIF PERMETTANT DE CORRIGER LE COUPLE D'UNE MACHINE

Publication

EP 1317371 A4 20090506 (EN)

Application

EP 00959983 A 20000907

Priority

US 0024535 W 20000907

Abstract (en)

[origin: WO0220332A1] An exemplary embodiment of the invention is a method for torque control of a PM synchronous machine (105). The method includes obtaining a torque command signal (Tcmd) and a machine speed ( omega m) and determining an operating mode (112, 114) in response to the torque command signal (Tcmd) and the machine speed ( omega ). The operating mode (112, 114) includes a first operating mode (112) and a second operating mode (114). In the first operating mode (112), a stator phase voltage magnitude (V) is computed and an angle ( delta DEG ) between the stator phase voltage (V) and a stator phase check emf (E) is determined in response to the stator phase voltage magnitude (V). In the second operating mode (114), the stator phase voltage (V) is set to a predetermined magnitude (Vm) and the angle ( delta DEG ) between the stator phase voltage (V) and the stator phase back emf (E) is determined in response to the predetermined magnitude.

IPC 8 full level

B62D 5/04 (2006.01); H02P 6/08 (2016.01); H02P 6/15 (2016.01); H02P 6/182 (2016.01); H02P 25/026 (2016.01); H02P 27/06 (2006.01)

CPC (source: EP)

H02P 6/085 (2013.01); H02P 6/15 (2016.02)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 0220332 A1 20020314; EP 1317371 A1 20030611; EP 1317371 A4 20090506; JP 2004508793 A 20040318

DOCDB simple family (application)

US 0024535 W 20000907; EP 00959983 A 20000907; JP 2002524972 A 20000907