JP2006254532A5 - - Google Patents

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Publication number
JP2006254532A5
JP2006254532A5 JP2005064008A JP2005064008A JP2006254532A5 JP 2006254532 A5 JP2006254532 A5 JP 2006254532A5 JP 2005064008 A JP2005064008 A JP 2005064008A JP 2005064008 A JP2005064008 A JP 2005064008A JP 2006254532 A5 JP2006254532 A5 JP 2006254532A5
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JP
Japan
Prior art keywords
command value
phase
value
voltage command
voltage
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Pending
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JP2005064008A
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Japanese (ja)
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JP2006254532A (en
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Priority to JP2005064008A priority Critical patent/JP2006254532A/en
Priority claimed from JP2005064008A external-priority patent/JP2006254532A/en
Publication of JP2006254532A publication Critical patent/JP2006254532A/en
Publication of JP2006254532A5 publication Critical patent/JP2006254532A5/ja
Pending legal-status Critical Current

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Claims (4)

操向ハンドルの操舵トルクを検出するトルクセンサと、
３以上の相を有する操舵補助用のブラシレスモータと、
前記トルクセンサで検出した前記操舵トルクに基いて算出されたトルク指令値Ｔｒｅｆに基いて、ｄ軸電流指令値とｑ軸電流指令値とを算出する電流指令値算出手段とを具備した電動パワーステアリング装置において、
前記電流指令値算出手段で算出されたｄ軸電流指令値及びｑ軸電流指令値に基いて、前記ブラシレスモータの各相の相電流指令値を算出する各相電流指令値算出手段と、
前記各相電流指令値算出手段で算出された各相の相電流指令値に基いて、各相の電圧指令値を出力する電流制御手段と、
前記電流制御手段から出力された各相の電圧指令値を入力し、前記各相の電圧指令値を補正して、電圧指令補正値を出力する電圧指令値補正手段と、
前記電圧指令値補正手段から出力された各相の電圧指令補正値に基いて、ＰＷＭ信号を生成するＰＷＭ制御手段と、
前記ＰＷＭ制御手段で生成されたＰＷＭ信号に基いて、前記ブラシレスモータをＰＷＭ駆動するモータ駆動回路と、
を備えることを特徴とする電動パワーステアリング装置。 A torque sensor for detecting the steering torque of the steering wheel;
A brushless motor for steering assistance having three or more phases;
Electric power steering comprising current command value calculation means for calculating a d-axis current command value and a q-axis current command value based on a torque command value Tref calculated based on the steering torque detected by the torque sensor In the device
Each phase current command value calculation means for calculating a phase current command value for each phase of the brushless motor based on the d-axis current command value and the q-axis current command value calculated by the current command value calculation means;
Current control means for outputting a voltage command value of each phase based on the phase current command value of each phase calculated by each phase current command value calculation means;
The enter the voltage command value of each phase outputted from the current control means corrects the voltage command value of the phase voltage command value correcting means for outputting a voltage command correction value,
PWM control means for generating a PWM signal based on the voltage command correction value of each phase output from the voltage command value correction means;
A motor drive circuit for PWM driving the brushless motor based on the PWM signal generated by the PWM control means;
An electric power steering apparatus comprising: 前記電圧指令値補正手段は、前記各相の電圧指令値から所定の補正電圧値をそれぞれ減算して、前記各相の電圧指令補正値を得る請求項１に記載の電動パワーステアリング装置。 2. The electric power steering apparatus according to claim 1, wherein the voltage command value correction unit subtracts a predetermined correction voltage value from the voltage command value of each phase to obtain a voltage command correction value of each phase. 3. 前記電圧指令値補正手段では、前記ブラシレスモータの電気角と回転速度に基づいて、前記各相の電圧指令値の基本波の位相を算出し、算出された位相に合わせて得られた３次高調波を前記所定の補正電圧値とする請求項２に記載の電動パワーステアリング装置。 The voltage command value correction means calculates a fundamental wave phase of the voltage command value of each phase based on the electrical angle and rotation speed of the brushless motor, and obtains the third harmonic obtained in accordance with the calculated phase. The electric power steering apparatus according to claim 2, wherein a wave is the predetermined correction voltage value. 前記電圧指令値補正手段では、前記各相の電圧指令値のうち、最大値と最小値に基づいて、電圧指令値平均値を前記所定の補正電圧値とする請求項２に記載の電動パワーステアリング装置。
3. The electric power steering according to claim 2, wherein the voltage command value correction means uses a voltage command value average value as the predetermined correction voltage value based on a maximum value and a minimum value among the voltage command values of each phase. 4. apparatus.
JP2005064008A 2005-03-08 2005-03-08 Electric power steering device Pending JP2006254532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005064008A JP2006254532A (en) 2005-03-08 2005-03-08 Electric power steering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005064008A JP2006254532A (en) 2005-03-08 2005-03-08 Electric power steering device

Publications (2)

Publication Number Publication Date
JP2006254532A JP2006254532A (en) 2006-09-21
JP2006254532A5 true JP2006254532A5 (en) 2008-04-17

Family

ID=37094427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005064008A Pending JP2006254532A (en) 2005-03-08 2005-03-08 Electric power steering device

Country Status (1)

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JP (1) JP2006254532A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5369630B2 (en) * 2008-11-12 2013-12-18 トヨタ自動車株式会社 AC motor control device
CN109451781B (en) * 2016-07-20 2020-01-31 日本精工株式会社 Electric power steering apparatus
US11001295B2 (en) 2017-10-26 2021-05-11 Nsk Ltd. Motor control device, motor control method, and electric power steering device
JP7107430B2 (en) * 2019-11-26 2022-07-27 日本精工株式会社 Motor control devices, electric actuator products and electric power steering devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001145381A (en) * 1999-11-12 2001-05-25 Toyota Motor Corp Controller of motor
JP3480843B2 (en) * 2001-09-04 2003-12-22 三菱電機株式会社 Electric power steering control device and control method
JP4103430B2 (en) * 2002-04-09 2008-06-18 株式会社ジェイテクト Electric power steering device
JP2004201487A (en) * 2002-11-28 2004-07-15 Nsk Ltd Motor and its drive controlling apparatus

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