JP2006248389A5 - - Google Patents

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Publication number
JP2006248389A5
JP2006248389A5 JP2005068143A JP2005068143A JP2006248389A5 JP 2006248389 A5 JP2006248389 A5 JP 2006248389A5 JP 2005068143 A JP2005068143 A JP 2005068143A JP 2005068143 A JP2005068143 A JP 2005068143A JP 2006248389 A5 JP2006248389 A5 JP 2006248389A5
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JP
Japan
Prior art keywords
equal
motor
electric power
determining whether
steering
Prior art date
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Granted
Application number
JP2005068143A
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Japanese (ja)
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JP4622593B2 (en
JP2006248389A (en
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Priority to JP2005068143A priority Critical patent/JP4622593B2/en
Priority claimed from JP2005068143A external-priority patent/JP4622593B2/en
Publication of JP2006248389A publication Critical patent/JP2006248389A/en
Publication of JP2006248389A5 publication Critical patent/JP2006248389A5/ja
Application granted granted Critical
Publication of JP4622593B2 publication Critical patent/JP4622593B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (2)

操舵部材に加えられた操舵トルクを検出し、検出した操舵トルクに基づき、モータを駆動して操舵補助する電動パワーステアリング装置において、
前記モータに供給している電圧が、所定電圧以上であるか否かを判定する手段と、該手段が所定電圧以上であると判定したときに、前記モータのマグネットにより発生する磁束を弱めるように制御する弱め界磁制御手段とを備え、該弱め界磁制御手段は、前記操舵トルクが所定値以上であるか否かを判定する手段と、該手段が所定値以上であると判定したときに、前記モータに流れる電流が上限値に達しているか否かを判定する手段とを有し、該手段が上限値に達していないと判定したときに、前記磁束を弱めるように構成してあることを特徴とする電動パワーステアリング装置。 In an electric power steering device that detects a steering torque applied to a steering member and assists steering by driving a motor based on the detected steering torque,
Means for determining whether or not the voltage supplied to the motor is equal to or higher than a predetermined voltage, and weakens the magnetic flux generated by the magnet of the motor when the means determines that the voltage is higher than or equal to the predetermined voltage. Field- weakening control means for controlling, the field-weakening control means for determining whether or not the steering torque is greater than or equal to a predetermined value, and when determining that the means is greater than or equal to a predetermined value, Means for determining whether or not the flowing current has reached an upper limit value, and is configured to weaken the magnetic flux when it is determined that the means has not reached the upper limit value. Electric power steering device. 前記所定電圧は、前記モータの回転数により定められた閾値である請求項１記載の電動パワーステアリング装置。   The electric power steering apparatus according to claim 1, wherein the predetermined voltage is a threshold value determined by a rotation speed of the motor.
JP2005068143A 2005-03-10 2005-03-10 Electric power steering device Expired - Fee Related JP4622593B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005068143A JP4622593B2 (en) 2005-03-10 2005-03-10 Electric power steering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005068143A JP4622593B2 (en) 2005-03-10 2005-03-10 Electric power steering device

Publications (3)

Publication Number Publication Date
JP2006248389A JP2006248389A (en) 2006-09-21
JP2006248389A5 true JP2006248389A5 (en) 2008-04-10
JP4622593B2 JP4622593B2 (en) 2011-02-02

Family

ID=37089328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005068143A Expired - Fee Related JP4622593B2 (en) 2005-03-10 2005-03-10 Electric power steering device

Country Status (1)

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JP (1) JP4622593B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5200628B2 (en) 2008-03-31 2013-06-05 株式会社ジェイテクト Motor control device and electric power steering device
JP7295717B2 (en) 2019-06-26 2023-06-21 株式会社Subaru motor device
JP7449166B2 (en) 2020-05-22 2024-03-13 株式会社豊田中央研究所 motor system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08275599A (en) * 1995-03-30 1996-10-18 Meidensha Corp Control method for permanent magnet synchronous motor
JP3624737B2 (en) * 1999-03-23 2005-03-02 豊田工機株式会社 Motor control device
JP3806539B2 (en) * 1999-03-24 2006-08-09 株式会社日立製作所 Control method of permanent magnet type synchronous motor
JP3781653B2 (en) * 2001-03-12 2006-05-31 株式会社ジェイテクト Electric power steering device
JP3559258B2 (en) * 2001-07-30 2004-08-25 三菱電機株式会社 Steering control device
JP2003348899A (en) * 2002-05-27 2003-12-05 Matsushita Electric Ind Co Ltd Control method for motor and control unit
JP3849979B2 (en) * 2002-07-02 2006-11-22 本田技研工業株式会社 Electric power steering device

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