WO2002020293A3 - Torque ripple free electric power steering - Google Patents

Torque ripple free electric power steering Download PDF

Info

Publication number
WO2002020293A3
WO2002020293A3 PCT/US2000/024416 US0024416W WO0220293A3 WO 2002020293 A3 WO2002020293 A3 WO 2002020293A3 US 0024416 W US0024416 W US 0024416W WO 0220293 A3 WO0220293 A3 WO 0220293A3
Authority
WO
WIPO (PCT)
Prior art keywords
torque ripple
shaft
electric power
power steering
free electric
Prior art date
Application number
PCT/US2000/024416
Other languages
French (fr)
Other versions
WO2002020293A2 (en
Inventor
Nady Boules
Rassem R Henry
Chandra Namuduri
Thomas W Nehl
Bruno P B Lequesne
Shaotang Chen
Original Assignee
Delphi Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delphi Tech Inc filed Critical Delphi Tech Inc
Priority to JP2002524938A priority Critical patent/JP2004508792A/en
Priority to EP00959930A priority patent/EP1405398A4/en
Priority to PCT/US2000/024416 priority patent/WO2002020293A2/en
Publication of WO2002020293A2 publication Critical patent/WO2002020293A2/en
Publication of WO2002020293A3 publication Critical patent/WO2002020293A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
    • B62D5/046—Controlling the motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P2209/00—Indexing scheme relating to controlling arrangements characterised by the waveform of the supplied voltage or current
    • H02P2209/07—Trapezoidal waveform

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Brushless Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

Disclosed is an electric motor system with reduced torque ripple comprising a sinusoidally magnetized permanent magnet (66), a sinusoidal inverter (50), a higher resolution position sensor, a composite iron stator yoke (70), a composite reinforced plastic rotor core and shaft (62), and a high gear ratio gear reduction box. The novel combination of magnet, inverter, sensor plastic rotor core and shaft and high gear ratio gear box substantially reduced the torque ripple on the shaft of said motor system.
PCT/US2000/024416 2000-09-06 2000-09-06 Torque ripple free electric power steering WO2002020293A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2002524938A JP2004508792A (en) 2000-09-06 2000-09-06 Torque ripple free electric power steering
EP00959930A EP1405398A4 (en) 2000-09-06 2000-09-06 Torque ripple free electric power steering
PCT/US2000/024416 WO2002020293A2 (en) 2000-09-06 2000-09-06 Torque ripple free electric power steering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/024416 WO2002020293A2 (en) 2000-09-06 2000-09-06 Torque ripple free electric power steering

Publications (2)

Publication Number Publication Date
WO2002020293A2 WO2002020293A2 (en) 2002-03-14
WO2002020293A3 true WO2002020293A3 (en) 2004-01-29

Family

ID=21741747

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/024416 WO2002020293A2 (en) 2000-09-06 2000-09-06 Torque ripple free electric power steering

Country Status (3)

Country Link
EP (1) EP1405398A4 (en)
JP (1) JP2004508792A (en)
WO (1) WO2002020293A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6914543B2 (en) 2002-06-03 2005-07-05 Visteon Global Technologies, Inc. Method for initializing position with an encoder
US6859001B2 (en) 2003-07-24 2005-02-22 General Electric Company Torque ripple and noise reduction by avoiding mechanical resonance for a brushless DC machine
US8116946B2 (en) 2006-11-10 2012-02-14 Jtekt Corporation Electric power steering device
JP2013052765A (en) * 2011-09-05 2013-03-21 Jtekt Corp Electric power steering apparatus
JP2013052766A (en) * 2011-09-05 2013-03-21 Jtekt Corp Electric power steering apparatus
US8742713B2 (en) * 2011-10-21 2014-06-03 Allegro Microsystems, Llc Motor control circuit and method that reduce speed jitter of an electric motor
US9775974B2 (en) 2015-01-22 2017-10-03 Medtronic Xomed, Inc. Corrosion-resistant magnetic article
US9931493B2 (en) 2015-01-22 2018-04-03 Medtronic Xomed, Inc. Corrosion-resistant magnetic article
DE102018200995A1 (en) * 2018-01-23 2019-07-25 Robert Bosch Gmbh A method of operating a steering system with a compensation device for reducing a torque ripple of a three-phase machine
JP7412103B2 (en) * 2019-07-30 2024-01-12 ニデックインスツルメンツ株式会社 encoder device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920161A (en) * 1997-05-26 1999-07-06 Hitachi, Ltd. Driving system for permanent magnet type synchronous machine suitable for electric vehicle and driving control method using the same
US5963706A (en) * 1997-10-23 1999-10-05 Baik; Edward Hyeen Control system for multi-phase brushless DC motor
US5977740A (en) * 1997-05-14 1999-11-02 Itt Manufacturing Enterprises, Inc. Brake-by-wire system with switched reluctance motor controller

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5860215A (en) * 1981-10-06 1983-04-09 Hitachi Ltd Encoder with position detection
US5682072A (en) * 1994-01-20 1997-10-28 Nsk Ltd. Three-phase brushless motor
US5982067A (en) * 1996-05-20 1999-11-09 General Motors Corporation Brushless DC motor having reduced torque ripple for electric power steering
WO2001020351A1 (en) * 1999-09-17 2001-03-22 Delphi Technologies, Inc. A low cost approach to measuring high resolution rotary position of electric machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5977740A (en) * 1997-05-14 1999-11-02 Itt Manufacturing Enterprises, Inc. Brake-by-wire system with switched reluctance motor controller
US5920161A (en) * 1997-05-26 1999-07-06 Hitachi, Ltd. Driving system for permanent magnet type synchronous machine suitable for electric vehicle and driving control method using the same
US5963706A (en) * 1997-10-23 1999-10-05 Baik; Edward Hyeen Control system for multi-phase brushless DC motor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1405398A4 *

Also Published As

Publication number Publication date
EP1405398A2 (en) 2004-04-07
EP1405398A4 (en) 2005-11-09
JP2004508792A (en) 2004-03-18
WO2002020293A2 (en) 2002-03-14

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