JP4928612B2 - センサのノイズを監視する方法および装置 - Google Patents
センサのノイズを監視する方法および装置 Download PDFInfo
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- JP4928612B2 JP4928612B2 JP2009527074A JP2009527074A JP4928612B2 JP 4928612 B2 JP4928612 B2 JP 4928612B2 JP 2009527074 A JP2009527074 A JP 2009527074A JP 2009527074 A JP2009527074 A JP 2009527074A JP 4928612 B2 JP4928612 B2 JP 4928612B2
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- 238000000034 method Methods 0.000 title claims description 35
- 238000012544 monitoring process Methods 0.000 title claims description 13
- 238000005070 sampling Methods 0.000 claims description 17
- 238000011156 evaluation Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 7
- 235000019580 granularity Nutrition 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000003595 spectral effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 230000003542 behavioural effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Classifications
-
- 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
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/032—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure affecting incoming signal, e.g. by averaging; gating undesired signals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
- B60T2210/10—Detection or estimation of road conditions
- B60T2210/12—Friction
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Traffic Control Systems (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Description
nは、窓ないしは窓サイズ毎の値S(i)の数であり、
k=0,1,2,…は、サンプリングしたアナログのセンサ信号の時間離散の測定値S(k)の合計数にわたるインデックスであり、これはサンプリングされた測定値のあらかじめ定めた数に分割される。
Fは、信号S(k−nw+1)およびS(k)内の種々異なるRMS
を計算して互いに結合する関数を示している。
fb>1/(2*nw*Ta)
と計算される。
に対して上で提案した式の代わりに、以下では容易かつ比較的効率的にマイクロコントローラにプログラミング可能な再帰的な式を使用する。すなわち、
ζ(k)=η(k)−η(k−nw)
であり、ただし窓サイズは、nwであり、またパラメタηは、測定しかつサンプリングした信号値S(i),i=1,2,…,Nのうちの1つである。
Claims (9)
- センサのノイズを監視する方法であって、
当該のセンサノイズ信号のスペクトル成分の影響を求めて、
当該の影響と設定値とを比較する、センサのノイズを監視する方法において、
あらかじめ定めた境界値との比較により、道路表面の実際の摩擦係数を前記センサの出力信号から推定することを特徴とする、
センサのノイズを監視する方法。 - 前記の検査を、算術平均値の標準偏差に基づいて実行する、
請求項1に記載の方法。 - 上記の計算方法は、センサノイズ計算および評価に対して、畳み込み方式を使用する
請求項1から3のいずれか1項記載の方法。 - 種々異なる粒度(M)を使用して畳み込み方式を使用する、
請求項1から4までのいずれか1項に記載の方法。 - 通常の走行動特性を上回る周波数を前記の評価に取り入れる、
請求項1から5までのいずれか1項に記載の方法。 - センサのノイズを監視する装置において、
センサの信号出力側(INPUT)に接続されたサンプラ(D)と、
当該のサンプラ(D)が発生したサンプリング値に基づき、第1の平均値
を形成する演算装置とを備え、
当該の演算装置は、
処理すべきサンプリング値(S(i))の個数ないしは窓幅(nw)を調整可能であり、
前記第1の平均値の形成結果に対して、1つのまたは複数の隣接する値または先行する値および/または後続する値を考慮して、第2の形態の平均値(F)を形成し、
あらかじめ定めた境界値との比較により、道路表面の実際の摩擦係数を前記センサの出力信号から推定することを特徴とする、
センサのノイズを監視する装置。 - 前記の装置には、種々異なる粒度(M)を設定するための入力側を有する畳み込み演算装置が含まれている、
請求項7に記載の装置。 - 前記各平均値形成の結果値および/または比較による結果評価を出力するための、前記演算装置に含まれる出力側は、比較値を含むデータ固定記憶装置および比較手段に接続されている、
請求項7または8に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006041867A DE102006041867B4 (de) | 2006-09-06 | 2006-09-06 | Verfahren und Vorrichtung zur Überwachung des Rauschens eines Sensors |
DE102006041867.0 | 2006-09-06 | ||
PCT/EP2007/055150 WO2008028697A2 (de) | 2006-09-06 | 2007-05-29 | Verfahren und vorrichtung zur überwachung des rauschens eines sensors |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010502966A JP2010502966A (ja) | 2010-01-28 |
JP4928612B2 true JP4928612B2 (ja) | 2012-05-09 |
Family
ID=39104442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009527074A Active JP4928612B2 (ja) | 2006-09-06 | 2007-05-29 | センサのノイズを監視する方法および装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8731855B2 (ja) |
EP (1) | EP2064522B1 (ja) |
JP (1) | JP4928612B2 (ja) |
KR (1) | KR101401593B1 (ja) |
CN (1) | CN101535769B (ja) |
DE (1) | DE102006041867B4 (ja) |
WO (1) | WO2008028697A2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110832557A (zh) * | 2017-08-02 | 2020-02-21 | 欧姆龙株式会社 | 传感器装置、背景噪声数据发送方法和背景噪声数据发送程序 |
US11758307B2 (en) | 2017-08-02 | 2023-09-12 | Omron Corporation | Sensor device, background noise data transmission method, and background noise data transmission program |
Families Citing this family (11)
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FR2948764B1 (fr) * | 2009-07-28 | 2011-08-26 | Michelin Soc Tech | Procede de prevision d'un bruit de roulement d'un pneumatique |
US20130282338A1 (en) * | 2012-04-19 | 2013-10-24 | Microchip Technology Incorporated | Method and System for Energy Efficient Measurement of Sensor Signals |
CN103712909B (zh) * | 2014-01-13 | 2016-09-21 | 东南大学 | 路面摩擦系数与摩擦噪声的同步测试方法 |
CN104181404B (zh) * | 2014-09-10 | 2017-06-09 | 杭州士兰微电子股份有限公司 | 半导体传感器输出噪声检测装置和方法 |
DE102014226783B4 (de) * | 2014-12-22 | 2020-01-02 | Continental Automotive Gmbh | System und Verfahren zur Ermittlung wenigstens eines, eine Abmessung eines Reifenlatsches an einem Reifen eines Rades eines Fahrzeuges charakterisierenden Reifenlatschparameters |
EP3370074B1 (en) * | 2016-11-02 | 2020-03-18 | Shenzhen Goodix Technology Co., Ltd. | Method for detecting background noise of sensor, and device thereof |
DE102017124317A1 (de) * | 2017-10-18 | 2019-04-18 | Thyssenkrupp Ag | Verfahren zur Bestimmung eines Reibungskoeffizienten zwischen einem Rad eines Kraftfahrzeuges und einer Straßenoberfläche mit Torque Vectoring |
DE102017221050A1 (de) * | 2017-11-24 | 2019-05-29 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Detektieren von Anomalien in Signaldaten für eine Reibwertschätzung für ein Fahrzeug |
CN111337422B (zh) * | 2020-02-25 | 2022-08-19 | 重庆凯瑞汽车试验设备开发有限公司 | 一种摩擦异响测试装置 |
DE102020209481A1 (de) * | 2020-07-28 | 2022-02-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren und Vorrichtung zum Kalibrieren und Betreiben eines Sensorbauteils mithilfe maschineller Lernverfahren |
CN114789743B (zh) * | 2022-06-22 | 2022-09-16 | 成都铁安科技有限责任公司 | 一种列车车轮运行异常监测方法及*** |
Citations (3)
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JPH0650878A (ja) * | 1992-07-31 | 1994-02-25 | Honda Motor Co Ltd | 路面状態判定装置 |
JPH11101732A (ja) * | 1997-09-25 | 1999-04-13 | Fuji Heavy Ind Ltd | 路面摩擦係数検出装置 |
JP2004257388A (ja) * | 2003-02-26 | 2004-09-16 | General Electric Co <Ge> | 切迫センサ故障を検出するための方法及び装置 |
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DE3148735A1 (de) * | 1981-12-09 | 1986-10-09 | Fried. Krupp Gmbh, 4300 Essen | Verfahren und vorrichtung zur frequenzanalyse |
DE69330568T2 (de) * | 1992-03-12 | 2001-11-22 | Honda Motor Co Ltd | Schwingungs- und Geräuschregelungssystem für Kraftfahrzeuge |
EP0775331B1 (en) * | 1993-11-19 | 1998-12-09 | The Dow Chemical Company | Transmitter freeze/fault detection |
US6601005B1 (en) * | 1996-11-07 | 2003-07-29 | Rosemount Inc. | Process device diagnostics using process variable sensor signal |
DE19733920A1 (de) * | 1997-08-06 | 1999-02-25 | Forschungszentrum Juelich Gmbh | Vorrichtung zur Störsignalunterdrückung mit frequenzabhängiger adaptiver Kompensation sowie eine solche Vorrichtung enthaltendes Gradiometer |
DE19839047A1 (de) * | 1998-06-22 | 2000-01-05 | Martin Daumer | Verfahren und Vorrichtung zur Drifterkennung |
US6670888B2 (en) * | 2001-07-17 | 2003-12-30 | Robert Bosch Corporation | Method of detecting improper mounting of acceleration sensors on a vehicle |
EP2514640B1 (en) * | 2001-12-21 | 2015-08-05 | Kabushiki Kaisha Bridgestone | Method and apparatus for estimation of road condition and tire running state, ABS and car control making use thereof |
JP2004257368A (ja) | 2003-02-27 | 2004-09-16 | Fuji Heavy Ind Ltd | 車両の燃料カット制御装置 |
DE10318602B4 (de) | 2003-04-24 | 2007-07-12 | Infineon Technologies Ag | Vorrichtung und Verfahren zum Einstellen des Signal/Rausch-Verhältnisses in einem Meßsystem |
DE102005017054B4 (de) * | 2004-07-28 | 2012-01-05 | Igus - Innovative Technische Systeme Gmbh | Verfahren und Vorrichtung zur Überwachung des Zustandes von Rotorblättern an Windkraftanlagen |
-
2006
- 2006-09-06 DE DE102006041867A patent/DE102006041867B4/de not_active Expired - Fee Related
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2007
- 2007-05-29 WO PCT/EP2007/055150 patent/WO2008028697A2/de active Application Filing
- 2007-05-29 KR KR1020097007013A patent/KR101401593B1/ko active IP Right Grant
- 2007-05-29 US US12/440,026 patent/US8731855B2/en active Active
- 2007-05-29 JP JP2009527074A patent/JP4928612B2/ja active Active
- 2007-05-29 EP EP07729573.1A patent/EP2064522B1/de not_active Not-in-force
- 2007-05-29 CN CN2007800413055A patent/CN101535769B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0650878A (ja) * | 1992-07-31 | 1994-02-25 | Honda Motor Co Ltd | 路面状態判定装置 |
JPH11101732A (ja) * | 1997-09-25 | 1999-04-13 | Fuji Heavy Ind Ltd | 路面摩擦係数検出装置 |
JP2004257388A (ja) * | 2003-02-26 | 2004-09-16 | General Electric Co <Ge> | 切迫センサ故障を検出するための方法及び装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110832557A (zh) * | 2017-08-02 | 2020-02-21 | 欧姆龙株式会社 | 传感器装置、背景噪声数据发送方法和背景噪声数据发送程序 |
US11758307B2 (en) | 2017-08-02 | 2023-09-12 | Omron Corporation | Sensor device, background noise data transmission method, and background noise data transmission program |
Also Published As
Publication number | Publication date |
---|---|
DE102006041867A1 (de) | 2008-03-27 |
CN101535769A (zh) | 2009-09-16 |
KR101401593B1 (ko) | 2014-06-02 |
DE102006041867B4 (de) | 2008-12-04 |
US20100299083A1 (en) | 2010-11-25 |
CN101535769B (zh) | 2012-11-07 |
WO2008028697A2 (de) | 2008-03-13 |
KR20090057417A (ko) | 2009-06-05 |
US8731855B2 (en) | 2014-05-20 |
EP2064522B1 (de) | 2015-09-30 |
WO2008028697A3 (de) | 2009-01-29 |
EP2064522A2 (de) | 2009-06-03 |
JP2010502966A (ja) | 2010-01-28 |
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