CA2427274A1 - Electronically controlled power steering system for vehicle and method and system for motor control - Google Patents

Electronically controlled power steering system for vehicle and method and system for motor control Download PDF

Info

Publication number
CA2427274A1
CA2427274A1 CA 2427274 CA2427274A CA2427274A1 CA 2427274 A1 CA2427274 A1 CA 2427274A1 CA 2427274 CA2427274 CA 2427274 CA 2427274 A CA2427274 A CA 2427274A CA 2427274 A1 CA2427274 A1 CA 2427274A1
Authority
CA
Canada
Prior art keywords
motor
power steering
electric motor
electric
power
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA 2427274
Other languages
French (fr)
Other versions
CA2427274C (en
Inventor
James B. Eskritt
Joel B. Kuehner
Hideki Jounokunchi
Yoshiyuki Yamazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELECTRONIC MOTION SYSTEMS HOLDINGS Ltd
Koyo Seiko Co Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA2572343A priority Critical patent/CA2572343C/en
Publication of CA2427274A1 publication Critical patent/CA2427274A1/en
Application granted granted Critical
Publication of CA2427274C publication Critical patent/CA2427274C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist

Abstract

A power steering device capable of obtaining a high rotary speed in the medium low torque range of an electric motor without incurring a drastic increase in manufacturing cost. The power steering device generates an auxiliary steering power by oil pressure that is generated by a pump which is driven by an electric power motor. The electric motor is a triple-phase brushless motor, with its angle of rotation being detected by the Hall sensors. The field coils are provided with the electric current from a drive circuit which is driven by a drive signal from the motor drive control part. The motor drive control part controls the electric motor by PWM control in the low medium speed rotation range and controls the electric motor by phase advance angle control, with PWM duty at 100 percent, in the medium high speed range.
CA 2427274 2002-04-30 2003-04-30 Electronically controlled power steering system for vehicle and method and system for motor control Expired - Fee Related CA2427274C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2572343A CA2572343C (en) 2002-04-30 2003-04-30 Electronically controlled power steering system for vehicle and method and system for motor control

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US37661702P 2002-04-30 2002-04-30
US60/376617 2002-04-30
US37729602P 2002-05-01 2002-05-01
US60/377296 2002-05-01
USUNKNOWN 2005-02-10

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2572343A Division CA2572343C (en) 2002-04-30 2003-04-30 Electronically controlled power steering system for vehicle and method and system for motor control

Publications (2)

Publication Number Publication Date
CA2427274A1 true CA2427274A1 (en) 2003-10-30
CA2427274C CA2427274C (en) 2007-04-03

Family

ID=29423595

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2427274 Expired - Fee Related CA2427274C (en) 2002-04-30 2003-04-30 Electronically controlled power steering system for vehicle and method and system for motor control

Country Status (2)

Country Link
CA (1) CA2427274C (en)
FR (1) FR2840276B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4105174B2 (en) * 2005-05-18 2008-06-25 三菱電機株式会社 Brushless motor drive method and drive control apparatus thereof
JP4022552B2 (en) * 2005-05-18 2007-12-19 三菱電機株式会社 Brushless motor drive method and drive control apparatus thereof
FR3059168B1 (en) * 2016-11-18 2018-10-26 Valeo Equipements Electriques Moteur ROTATING ELECTRICAL MACHINE WITH IMPROVED YIELD

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505275A (en) * 1993-09-09 1996-04-09 Techo Corporation Power steering system
JPH0920263A (en) * 1995-07-06 1997-01-21 Jidosha Kiki Co Ltd Motor-driven pump type power steering device
GB2305033A (en) * 1995-08-25 1997-03-26 Norcroft Dynamics Ltd Controlling brushless dc motors
DE69823494T2 (en) * 1997-02-05 2005-04-14 Fisher + Paykel Appliances Ltd., East Tamaki CONTROL OF A BRUSHLESS DC MOTOR
JP3735470B2 (en) * 1998-09-18 2006-01-18 光洋精工株式会社 Power steering device

Also Published As

Publication number Publication date
CA2427274C (en) 2007-04-03
FR2840276A1 (en) 2003-12-05
FR2840276B1 (en) 2006-05-26

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20170501

MKLA Lapsed

Effective date: 20170501