FR2982643B1 - AIR LEAK AND BUBBLE DETECTOR IN A FUEL SUPPLY LINE OF A HIGH PRESSURE INJECTION INTERNAL COMBUSTION ENGINE - Google Patents

AIR LEAK AND BUBBLE DETECTOR IN A FUEL SUPPLY LINE OF A HIGH PRESSURE INJECTION INTERNAL COMBUSTION ENGINE

Info

Publication number
FR2982643B1
FR2982643B1 FR1160345A FR1160345A FR2982643B1 FR 2982643 B1 FR2982643 B1 FR 2982643B1 FR 1160345 A FR1160345 A FR 1160345A FR 1160345 A FR1160345 A FR 1160345A FR 2982643 B1 FR2982643 B1 FR 2982643B1
Authority
FR
France
Prior art keywords
pressure
fuel supply
internal combustion
combustion engine
bubble
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.)
Expired - Fee Related
Application number
FR1160345A
Other languages
French (fr)
Other versions
FR2982643A1 (en
Inventor
Charles Lemaitre
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Priority to FR1160345A priority Critical patent/FR2982643B1/en
Publication of FR2982643A1 publication Critical patent/FR2982643A1/en
Application granted granted Critical
Publication of FR2982643B1 publication Critical patent/FR2982643B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • F02D2041/224—Diagnosis of the fuel system
    • F02D2041/225—Leakage detection
    • 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
    • F02D2041/227—Limping Home, i.e. taking specific engine control measures at abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/02—Fuel evaporation in fuel rails, e.g. in common rails

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The method involves determining a first pressure (P1) at a moment in a fuel supply pipe of an engine. A second pressure (P2), in the pipe, is determined at another moment subsequently when the first pressure is lower than a reference pressure. The second pressure is determined corresponding to a pressure in the pipe in absence of air bubble and fuel leak. A pressure loss due to leak or bubble is differentiated from a comparison between the pressures. The bubble or the leakage is detected when the second pressure is upper, or lower or equal with the first pressure, respectively. An independent claim is also included for a device for detecting leakage or bubble of air present in a fuel supply pipe of an internal combustion engine.
FR1160345A 2011-11-14 2011-11-14 AIR LEAK AND BUBBLE DETECTOR IN A FUEL SUPPLY LINE OF A HIGH PRESSURE INJECTION INTERNAL COMBUSTION ENGINE Expired - Fee Related FR2982643B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1160345A FR2982643B1 (en) 2011-11-14 2011-11-14 AIR LEAK AND BUBBLE DETECTOR IN A FUEL SUPPLY LINE OF A HIGH PRESSURE INJECTION INTERNAL COMBUSTION ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1160345A FR2982643B1 (en) 2011-11-14 2011-11-14 AIR LEAK AND BUBBLE DETECTOR IN A FUEL SUPPLY LINE OF A HIGH PRESSURE INJECTION INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
FR2982643A1 FR2982643A1 (en) 2013-05-17
FR2982643B1 true FR2982643B1 (en) 2014-01-03

Family

ID=45524792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1160345A Expired - Fee Related FR2982643B1 (en) 2011-11-14 2011-11-14 AIR LEAK AND BUBBLE DETECTOR IN A FUEL SUPPLY LINE OF A HIGH PRESSURE INJECTION INTERNAL COMBUSTION ENGINE

Country Status (1)

Country Link
FR (1) FR2982643B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179922A (en) * 1990-11-15 1993-01-19 Proprietary Technology, Inc. Apparatus for determining change of fuel flow
US5685268A (en) * 1996-05-20 1997-11-11 Siemens Automotive Corporation Fuel leakage detector system
DE19703891B4 (en) * 1997-02-03 2008-07-31 Robert Bosch Gmbh Method and device for detecting a leak
DE19727794C1 (en) * 1997-06-30 1999-01-28 Siemens Ag Method of checking fuel line, esp. of common rail fuel injection systems for IC engines
DE10061855C2 (en) * 2000-12-12 2003-05-22 Bosch Gmbh Robert Method, computer program and control and / or regulating device for operating an internal combustion engine, and internal combustion engine

Also Published As

Publication number Publication date
FR2982643A1 (en) 2013-05-17

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Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6

CA Change of address

Effective date: 20180312

CD Change of name or company name

Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR

Effective date: 20180312

ST Notification of lapse

Effective date: 20180731