JP6809398B2 - 信号処理方法、スリップ検出方法、車両の制御方法、車両の制御装置及び車両 - Google Patents
信号処理方法、スリップ検出方法、車両の制御方法、車両の制御装置及び車両 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
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- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
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- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle
- B60K28/16—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle responsive to, or preventing, skidding of wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/12—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to parameters of the vehicle itself, e.g. tyre models
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
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- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0043—Signal treatments, identification of variables or parameters, parameter estimation or state estimation
- B60W2050/0059—Signal noise suppression
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- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/12—Differentials
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
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- B60W2720/30—Wheel torque
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Description
この方法によれば、ノイズの周期よりも短い周期でサンプリングされた信号を、ノイズの周期の1/2の間隔で複数抽出して相加平均値を算出するため、センサによる信号の検出とノイズの除去とを同時に行いつつ、信号が急峻に変化した場合に、変化した信号のピークを、ピーク発生から遅延なく取得することができる。
この方法によれば、信号に不規則な周波数成分が発生した場合に、不規則な周波数成分を、周波数成分の発生から遅延なく取得することができる。
この方法によれば、車両の駆動系からの信号の検出とノイズの除去とを同時に行いつつ、信号が急峻に変化した場合に、変化した信号のピークを、ピーク発生から遅延なく取得することができる。
この方法によれば、プロペラシャフトのねじれに起因するノイズを除去しながら、信号が急峻に変化した場合に、変化した信号のピークを、ピーク発生から遅延なく取得することができる。
この方法によれば、歯車機構のバックラッシュ(Backlash)に起因するノイズを除去しながら、信号が急峻に変化した場合に、変化した信号のピークを、ピーク発生から遅延なく取得することができる。
この方法によれば、複数の群を抽出することができる。
この方法によれば、車両にスリップが発生したことを、遅延なく検出することができる。
この方法によれば、車両にスリップが発生した場合に、遅延なくスリップを解消することができる。
この制御装置によれば、車両にスリップが発生した場合に、遅延なくスリップを解消することができる。
計測時間0、60、120、180(ms)における時定数速度Vsmの群
計測時間10、70、130、190(ms)における時定数速度Vsmの群
計測時間20、80、140、200(ms)における時定数速度Vsmの群
計測時間30、90、150、210(ms)における時定数速度Vsmの群
計測時間40、100、160、220(ms)における時定数速度Vsmの群
計測時間50、110、170、230(ms)における時定数速度Vsmの群
・・・。
Xlfp[1]=(Xsm[1 +Δt/Δts*0]+Xsm[1+Δt/Δts*1]+Xsm[1+Δt /Δts *2]+Xsm[1+Δt /Δts *3])/4
Xlfp[2]=(Xsm[2 +Δt/Δts*0]+Xsm[2+Δt/Δts*1]+Xsm[2+Δt /Δts *2]+Xsm[2+Δt /Δts *3])/4
Xlfp[3]=(Xsm[3 +Δt/Δts*0]+Xsm[3+Δt/Δts*1]+Xsm[3+Δt /Δts *2]+Xsm[3+Δt /Δts *3])/4
・
・
・
Xlfp[n]=(Xsm[n +Δt/Δts*0]+Xsm[n+Δt/Δts*1]+Xsm[n+Δt /Δts *2]+Xsm[n+Δt /Δts *3])/4
・・・式(2)
図4は、速度Vと、時定数速度Vsmと、相加平均速度Vlpfavと、を比較した図である。図4において縦軸は速度、横軸は計測時間である。時定数速度Vsmは、時定数処理により、速度Vに比べてノイズが低減される。相加平均速度Vlpfavは、時定数速度Vsmに比べて、さらにノイズが低減される。この低減は、速度の微分値である加速度において、さらに顕著である。
25…レゾルバ
30…プロペラシャフト
40…デファレンシャルギヤ
50…駆動軸
60…後輪
90…制御装置
91…CPU
92…メモリ
93…インターフェイス
100…車両
Claims (8)
- 一定周期のノイズを含む信号を処理する信号処理方法であって、
センサが検出する信号を受信して、受信した信号を前記ノイズの周期よりも短い周期でサンプリングする、サンプリング処理と、
前記ノイズの周期よりも短い周期でサンプリングされた信号を、前記ノイズの周期の1/2の間隔で複数抽出する、抽出処理と、
抽出した信号からなる群における相加平均値を算出する、相加平均処理と、
前記相加平均処理により得られた値を新たな信号として出力する、出力処理と、を備え、
前記センサは、車両の駆動系に設けられており、
前記センサが検出する信号は、車両のプロペラシャフトに接続されたモータの回転角を検出するセンサが検出する信号であり、
前記新たな信号は、前記モータの回転角の2階微分値である、信号処理方法。 - 一定周期のノイズを含む信号を処理する信号処理方法であって、
センサが検出する信号を受信して、受信した信号を前記ノイズの周期よりも短い周期でサンプリングする、サンプリング処理と、
前記ノイズの周期よりも短い周期でサンプリングされた信号を、前記ノイズの周期の1/2の間隔で複数抽出する、抽出処理と、
抽出した信号からなる群における相加平均値を算出する、相加平均処理と、
前記相加平均処理により得られた値を新たな信号として出力する、出力処理と、を備え、
前記センサは、車両の駆動系に設けられており、
前記センサが検出する信号は、車両の歯車機構に接続されたモータの回転角を検出するセンサが検出する信号であり、
前記新たな信号は、前記モータの回転角の2階微分値である、信号処理方法。 - 請求項1または2に記載の信号処理方法であって、
前記新たな信号を用いて、前記センサが検出する信号に含まれ得る、前記ノイズとは異なる不規則な周波数成分を検出する、信号処理方法。 - 請求項1から請求項3までのいずれか一項に記載の信号処理方法であって、
前記抽出処理では、前記ノイズの周期の1/2の間隔で抽出を行いつつ、抽出した群に含まれる各信号に紐づく前記センサによる検出時間が、前回抽出した群に含まれる各信号に紐づく前記センサによる検出時間からずれるように、複数の群を抽出する、信号処理方法。 - 請求項1から請求項4までのいずれか一項に記載の信号処理方法において求められた前記2階微分値を用いて、前記車両にスリップが発生したことを検出する、スリップ検出方法。
- 請求項5に記載のスリップ検出方法を用いて前記車両を制御する車両の制御方法であって、
前記車両にスリップが発生したことを検出した場合に、前記モータに対する要求トルク量を低減する、車両の制御方法。 - 車両の制御装置であって、
前記車両のモータには、前記モータの回転角を検出するセンサが設けられており、
前記センサが検出する信号であって、一定周期のノイズを含む信号を受信して、受信した信号を前記ノイズの周期よりも短い周期でサンプリングし、
前記ノイズの周期よりも短い周期でサンプリングされた信号を、前記ノイズの周期の1/2の間隔で複数抽出し、
抽出した信号からなる群における相加平均値を算出し、
抽出した信号からなる群における前記相加平均により得られた値であって、前記回転角の2階微分値を、新たな信号として出力し、
前記2階微分値を用いて、前記車両にスリップが発生したことを検出し、
前記車両にスリップが発生したことを検出した場合に、前記モータに対する要求トルク量を低減する、
車両の制御装置。 - 請求項7に記載の車両の制御装置を備える、車両。
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JP2017127124A JP6809398B2 (ja) | 2017-06-29 | 2017-06-29 | 信号処理方法、スリップ検出方法、車両の制御方法、車両の制御装置及び車両 |
DE102018112848.7A DE102018112848A1 (de) | 2017-06-29 | 2018-05-29 | Signalverarbeitungsverfahren, Schlupfdetektionsverfahren, Steuerungsverfahren für ein Fahrzeug, Steuereinheit für ein Fahrzeug und Fahrzeug |
CA3007391A CA3007391C (en) | 2017-06-29 | 2018-06-06 | Signal processing method, slip detection method, control method for vehicle, controller for vehicle, and vehicle |
KR1020180068693A KR102044718B1 (ko) | 2017-06-29 | 2018-06-15 | 신호 처리 방법, 슬립 검출 방법, 차량의 제어 방법, 차량의 제어 장치 및 차량 |
CN201810671131.0A CN109204321B (zh) | 2017-06-29 | 2018-06-26 | 信号处理方法、滑移检测方法、车辆的控制方法和装置 |
US16/018,407 US10556580B2 (en) | 2017-06-29 | 2018-06-26 | Signal processing method, slip detection method, control method for vehicle, controller for vehicle, and vehicle |
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CA3200978A1 (en) * | 2020-11-09 | 2022-05-12 | Hengstler Gmbh | Detection of coupling slippage in rotary encoder systems |
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EP0115391A3 (en) * | 1983-01-27 | 1987-06-10 | Optron, Inc. | Hall-effect position sensor apparatus |
JPH03118423A (ja) * | 1989-09-29 | 1991-05-21 | Yamato Scale Co Ltd | 計重信号の濾波装置 |
JPH099493A (ja) * | 1995-06-20 | 1997-01-10 | Nippondenso Co Ltd | 交流電動機の運転状態判定装置 |
JP3840082B2 (ja) * | 2000-10-11 | 2006-11-01 | 松下電器産業株式会社 | 位置センサレスモータ制御方法及び制御装置 |
JP4120504B2 (ja) | 2003-07-30 | 2008-07-16 | トヨタ自動車株式会社 | 車両および車両の制御方法 |
JP4798944B2 (ja) * | 2003-10-06 | 2011-10-19 | 横浜ゴム株式会社 | ゆらぎ成分除去方法及びゆらぎ成分除去プログラム及び速度計測器及び走行性能評価システム |
GB2423154A (en) * | 2005-02-02 | 2006-08-16 | E Lead Electronic Co Ltd | Method for detecting vehicle speed |
JP4835528B2 (ja) * | 2007-07-19 | 2011-12-14 | トヨタ自動車株式会社 | 異常監視装置および異常監視方法 |
JP2009098094A (ja) | 2007-10-19 | 2009-05-07 | Niles Co Ltd | 回転角度検出装置 |
EP2307250B1 (en) * | 2008-08-07 | 2013-03-06 | Toyota Jidosha Kabushiki Kaisha | Vehicle behavior control apparatus and vehicle behavior control method |
DE102011081947A1 (de) * | 2011-09-01 | 2013-03-07 | Robert Bosch Gmbh | Sensoranordnung für ein Fahrzeug und Betriebsverfahren für eine Sensoranordnung in einem Fahrzeug |
JP6086205B2 (ja) * | 2012-12-12 | 2017-03-01 | 株式会社ジェイテクト | 位相差検出装置およびそれを備えた回転角検出装置 |
JP2014209064A (ja) * | 2013-04-16 | 2014-11-06 | 株式会社ジェイテクト | レゾルバ信号処理装置 |
JP6422012B2 (ja) * | 2014-02-18 | 2018-11-14 | フジデノロ株式会社 | 磁気検出装置 |
JP6342679B2 (ja) * | 2014-03-12 | 2018-06-13 | 株式会社ミツトヨ | 位置検出装置 |
KR101776474B1 (ko) * | 2016-03-21 | 2017-09-07 | 현대자동차주식회사 | 레졸버 신호를 이용하는 모터 고장 진단 장치 및 방법 |
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US10556580B2 (en) | 2020-02-11 |
CN109204321B (zh) | 2021-05-28 |
US20190001953A1 (en) | 2019-01-03 |
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CN109204321A (zh) | 2019-01-15 |
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