EP2184473A3 - Method and device for testing a pressure sensor of a fuel injection device - Google Patents

Method and device for testing a pressure sensor of a fuel injection device Download PDF

Info

Publication number
EP2184473A3
EP2184473A3 EP09170017.9A EP09170017A EP2184473A3 EP 2184473 A3 EP2184473 A3 EP 2184473A3 EP 09170017 A EP09170017 A EP 09170017A EP 2184473 A3 EP2184473 A3 EP 2184473A3
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure sensor
fuel injection
testing
injection device
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP09170017.9A
Other languages
German (de)
French (fr)
Other versions
EP2184473A2 (en
Inventor
Rene Zieher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2184473A2 publication Critical patent/EP2184473A2/en
Publication of EP2184473A3 publication Critical patent/EP2184473A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • F02D2041/223—Diagnosis of fuel pressure sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Measuring Fluid Pressure (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Verfahren zur Überprüfung eines Drucksensors (S) einer Kraftstoffeinspritzeinrichtung, insbesondere eines Kraftfahrzeugs, wobei die Kraftstoffeinspritzeinrichtung einen Druckspeicher (9) aufweist, dem der Drucksensor (S) und ein Einspritzventil (11) zugeordnet ist, wobei bei dem Verfahren eine Kraftstoffmenge (Q) unter einem Druck (pl) von dem Einspritzventil (11) eingespritzt wird, dadurch gekennzeichnet, dass eine Druckdifferenz (Δp1), die durch einen Druckeinbruch auf Grund des Einspritzvorgangs entsteht, in Abhängigkeit von dem Druck (pl) und der Kraftstoffmenge (Q) ermittelt wird.

Figure imgaf001
A method for checking a pressure sensor (S) of a fuel injection device, in particular of a motor vehicle, wherein the fuel injection device has a pressure accumulator (9) to which the pressure sensor (S) and an injection valve (11) is assigned, wherein in the method a fuel quantity (Q) below a pressure (pl) from the injection valve (11) is injected, characterized in that a pressure difference (Δp1), which results from a pressure drop due to the injection process, in dependence on the pressure (pl) and the amount of fuel (Q) is determined ,
Figure imgaf001
EP09170017.9A 2008-11-10 2009-09-11 Method and device for testing a pressure sensor of a fuel injection device Withdrawn EP2184473A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008043592A DE102008043592A1 (en) 2008-11-10 2008-11-10 Method and device for checking a pressure sensor of a fuel injection device

Publications (2)

Publication Number Publication Date
EP2184473A2 EP2184473A2 (en) 2010-05-12
EP2184473A3 true EP2184473A3 (en) 2014-01-29

Family

ID=41560384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09170017.9A Withdrawn EP2184473A3 (en) 2008-11-10 2009-09-11 Method and device for testing a pressure sensor of a fuel injection device

Country Status (3)

Country Link
US (1) US20100121600A1 (en)
EP (1) EP2184473A3 (en)
DE (1) DE102008043592A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107636283A (en) * 2015-04-01 2018-01-26 罗伯特·博世有限公司 Method and apparatus for obtaining the corrected value for fuel injection amount

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028900B4 (en) * 2007-06-22 2013-06-27 Continental Automotive Gmbh Method and device for diagnosing an injection valve of an internal combustion engine that is in communication with a fuel rail
JP5182337B2 (en) * 2010-08-18 2013-04-17 株式会社デンソー Detection deviation judgment device of fuel pressure sensor
US9200975B2 (en) * 2011-11-15 2015-12-01 GM Global Technology Operations LLC Pressure diagnostic system and method
DE102012218176A1 (en) 2012-10-05 2014-04-10 Robert Bosch Gmbh Method for operating a fuel injection system
DE102017208080A1 (en) * 2017-05-12 2018-04-12 Continental Automotive Gmbh Method for operating a high-pressure fuel system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH112148A (en) * 1997-06-11 1999-01-06 Toyota Motor Corp Operation controller for internal combustion engine
DE19757655A1 (en) * 1997-12-23 1999-08-26 Siemens Ag Method and device for monitoring the function of a pressure sensor
EP1526269A2 (en) * 2003-10-20 2005-04-27 Siemens Aktiengesellschaft Method and device for monitoring a fuel pressure sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004028891A1 (en) 2004-06-15 2006-01-05 Robert Bosch Gmbh Method for running of internal combustion engine of especially motor vehicle entails determining difference signal which represents deviation of pressure measured by pressure sensor from specific pressure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH112148A (en) * 1997-06-11 1999-01-06 Toyota Motor Corp Operation controller for internal combustion engine
DE19757655A1 (en) * 1997-12-23 1999-08-26 Siemens Ag Method and device for monitoring the function of a pressure sensor
EP1526269A2 (en) * 2003-10-20 2005-04-27 Siemens Aktiengesellschaft Method and device for monitoring a fuel pressure sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107636283A (en) * 2015-04-01 2018-01-26 罗伯特·博世有限公司 Method and apparatus for obtaining the corrected value for fuel injection amount
CN107636283B (en) * 2015-04-01 2021-04-02 罗伯特·博世有限公司 Method and device for determining a correction value for a fuel injection quantity

Also Published As

Publication number Publication date
US20100121600A1 (en) 2010-05-13
EP2184473A2 (en) 2010-05-12
DE102008043592A1 (en) 2010-05-12

Similar Documents

Publication Publication Date Title
EP2184473A3 (en) Method and device for testing a pressure sensor of a fuel injection device
EP1884646A3 (en) Method for controlling a combustion machine
DE102005004423B3 (en) Fuel injection system`s operability monitoring method for use in internal combustion engine, involves identifying source of defect based on difference of measured temporal behavior of pressure and desired value characteristic
DE102015110263A1 (en) System for controlling a gas supply unit
EP2022969A3 (en) Method for operating a piezoelectrically actuated injection valve
EP2011984A3 (en) Method for verifying the output signal of a rail pressure sensor
ATE468481T1 (en) METHOD FOR CONTROLLING A RELIEF VALVE IN A COMMON RAIL FUEL SUPPLY SYSTEM
DE102010017325A1 (en) Fuel state detection device
EP1741912A3 (en) Method and device for controlling a fuel injection system for an internal combustion engine of a vehicle
EP1645853A3 (en) Method of testing the functionig of a level sensor
EP1882841A3 (en) Method for detecting a pilot injection
EP0878617A3 (en) Method for the determining of the opening time of a fuel injector in a Common-rail fuel injection system
EP1359306A3 (en) Fuel injection system for an internal combustion engine
DE102012215394A1 (en) Device for diagnosing dosing system, which meters reagent in exhaust gas passage of internal combustion engine, has pump and reagent for applying working pressure, where dosing valve is provided for metering
EP1995140A3 (en) Method for monitoring air-tightness of a compressed air system and electronic device provided for said method
EP2080888A3 (en) Automatic fuel detection
EP1760390A3 (en) Device and process for closing a liquefied gas system for vehicle in case of an accident
EP1936178A3 (en) Fuel preheating device
DE102008029224A1 (en) Check valve's function i.e. tightness, testing method for fluid pipe in motor vehicle, involves implementing difference pressure-observation by valves during period and controlling observation in no-load operation by control unit
EP1681486A3 (en) System and method for cooling a vehicle clutch comprising a valve device
EP2103788A3 (en) Device and method for thermodynamic and pressure-building release of ammoniac
DE102010009686A1 (en) Fuel pressure control strategy at engine shutdown
DE102005028137A1 (en) Fuel injection quantity measuring method for internal combustion engine in motor vehicle, involves comparing pressure drop rates of valves in built-in condition, or with absolute threshold value for determining quantity of valves
DE102016219959A1 (en) Method for checking a calibration of a pressure sensor of a motor vehicle injection system and control device, high-pressure injection system and motor vehicle
EP1132607A3 (en) Method for controlling multiple injections in an internal combustion engine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: F02D 41/22 20060101AFI20131220BHEP

Ipc: F02D 41/38 20060101ALI20131220BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140730