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ATE510201T1 - Verbesserungen in bezug auf die diagnose eines kapazitiven sensors - Google Patents

Verbesserungen in bezug auf die diagnose eines kapazitiven sensors

Info

Publication number
ATE510201T1
ATE510201T1 AT07735422T AT07735422T ATE510201T1 AT E510201 T1 ATE510201 T1 AT E510201T1 AT 07735422 T AT07735422 T AT 07735422T AT 07735422 T AT07735422 T AT 07735422T AT E510201 T1 ATE510201 T1 AT E510201T1
Authority
AT
Austria
Prior art keywords
sensor
capacitive sensor
terminals
protection circuit
detector
Prior art date
Application number
AT07735422T
Other languages
English (en)
Inventor
Mike Garrard
Ray Marshall
Stefano Pietri
Original Assignee
Freescale Semiconductor Inc
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 Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Application granted granted Critical
Publication of ATE510201T1 publication Critical patent/ATE510201T1/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
    • G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
    • G01L23/225—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines circuit arrangements therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
    • G01L27/007—Malfunction diagnosis, i.e. diagnosing a sensor defect

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Current Or Voltage (AREA)
AT07735422T 2007-04-06 2007-04-06 Verbesserungen in bezug auf die diagnose eines kapazitiven sensors ATE510201T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2007/051253 WO2008122842A1 (en) 2007-04-06 2007-04-06 Improvements in or relating to diagnostics of a capacitive sensor

Publications (1)

Publication Number Publication Date
ATE510201T1 true ATE510201T1 (de) 2011-06-15

Family

ID=39093065

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07735422T ATE510201T1 (de) 2007-04-06 2007-04-06 Verbesserungen in bezug auf die diagnose eines kapazitiven sensors

Country Status (5)

Country Link
US (1) US8629682B2 (de)
EP (1) EP2135052B1 (de)
CN (1) CN101669019B (de)
AT (1) ATE510201T1 (de)
WO (1) WO2008122842A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9791494B2 (en) 2012-01-20 2017-10-17 Lear Corporation Apparatus and method for diagnostics of a capacitive sensor
IN2012DE00175A (de) * 2012-01-20 2015-08-21 Rosemount Inc
JP5825294B2 (ja) * 2013-05-08 2015-12-02 トヨタ自動車株式会社 燃料性状センサの異常判定装置
US10260983B2 (en) 2014-01-20 2019-04-16 Lear Corporation Apparatus and method for diagnostics of a capacitive sensor with plausibility check
DE102015200790A1 (de) 2014-01-20 2015-07-23 Lear Corporation Vorrichtung und Verfahren zur Diagnose eines kapazitiven Sensors mit Plausibilitätsprüfung
JP2016180651A (ja) * 2015-03-24 2016-10-13 アズビル株式会社 堆積物状態推定装置、堆積物状態推定方法および堆積物状態推定システム
JP6556616B2 (ja) * 2015-12-21 2019-08-07 アズビル株式会社 圧力センサ
CN112771264B (zh) * 2019-08-02 2023-07-25 三菱重工发动机和增压器株式会社 内燃机以及发电系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286164A (en) * 1962-05-18 1966-11-15 Mobil Oil Corp Systems for detection and automatic registration of preignition ionization potentials in internal combustion engines
JPS5811824A (ja) * 1981-07-15 1983-01-22 Hitachi Ltd 圧電型ノツクセンサのシヨ−ト検出回路
US5377524A (en) * 1992-06-22 1995-01-03 The Regents Of The University Of Michigan Self-testing capacitive pressure transducer and method
US5421191A (en) 1993-03-08 1995-06-06 Chrysler Corporation Knock sensor diagnostic system
IT1268099B1 (it) 1994-09-30 1997-02-20 Marelli Autronica Sistema di diagnosi per un sensore di tipo capacitivo.
EP0720007B1 (de) 1994-12-30 2000-04-26 Robert Bosch Gmbh Einrichtung zur Fehlererkennung bei einer Klopferkennung
US6466036B1 (en) * 1998-11-25 2002-10-15 Harald Philipp Charge transfer capacitance measurement circuit
DE10033586A1 (de) 2000-07-11 2002-01-24 Bosch Gmbh Robert Verfahren und Vorrichtung zur Fehlererkennung bzw. Diagnose
US20050231212A1 (en) * 2004-04-14 2005-10-20 Moghissi Oliver C Voltage measurement with automated correction for input impedance errors
US7288946B2 (en) * 2005-06-03 2007-10-30 Synaptics Incorporated Methods and systems for detecting a capacitance using sigma-delta measurement techniques
CN100489888C (zh) * 2005-08-12 2009-05-20 鸿富锦精密工业（深圳）有限公司 触摸式感应装置
JP5222457B2 (ja) 2005-09-26 2013-06-26 株式会社日立製作所 センサおよびセンサモジュール

Also Published As

Publication number Publication date
CN101669019A (zh) 2010-03-10
EP2135052A1 (de) 2009-12-23
WO2008122842A1 (en) 2008-10-16
EP2135052B1 (de) 2011-05-18
US8629682B2 (en) 2014-01-14
CN101669019B (zh) 2013-11-20
US20100043531A1 (en) 2010-02-25

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