EP1092858A2 - Méthode et dispositif pour la commande d'un moteur à combustion interne - Google Patents

Méthode et dispositif pour la commande d'un moteur à combustion interne Download PDF

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Publication number
EP1092858A2
EP1092858A2 EP00120364A EP00120364A EP1092858A2 EP 1092858 A2 EP1092858 A2 EP 1092858A2 EP 00120364 A EP00120364 A EP 00120364A EP 00120364 A EP00120364 A EP 00120364A EP 1092858 A2 EP1092858 A2 EP 1092858A2
Authority
EP
European Patent Office
Prior art keywords
sensor signal
internal combustion
combustion engine
pressure
fuel
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.)
Granted
Application number
EP00120364A
Other languages
German (de)
English (en)
Other versions
EP1092858B1 (fr
EP1092858A3 (fr
Inventor
Ruediger Dr.-Ing. Fehrmann
Andreas Dipl.-Ing. Kellner
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 EP1092858A2 publication Critical patent/EP1092858A2/fr
Publication of EP1092858A3 publication Critical patent/EP1092858A3/fr
Application granted granted Critical
Publication of EP1092858B1 publication Critical patent/EP1092858B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02D41/30—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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
    • 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
    • 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
    • F02D2250/31—Control of 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
    • F02D41/30—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
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • 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
    • F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves

Definitions

  • the invention relates to a method and a device for controlling an internal combustion engine according to the generic terms of independent claims.
  • a method and an apparatus for controlling a Internal combustion engines are known from DE 195 48 278.
  • CR system common rail system
  • the control duration of the injectors depends on the amount of fuel to be injected and the pressure in the accumulator given.
  • the pressure in the memory becomes speed-synchronous detected.
  • the pressure control takes place in a fixed Time grid. For this purpose, the one already detected in synchronism with the speed Rail pressure scanned synchronously.
  • the invention has for its object in a method and a device for controlling an internal combustion engine to reduce the quantity errors of the type mentioned at the beginning and thus the emission behavior of the internal combustion engine to improve. This task is carried out in the Features characterized independent claims solved.
  • FIG. 1 shows 2 shows a block diagram of the device according to the invention
  • FIG. 2 a detailed block diagram of the device according to the invention.
  • a fuel reservoir denotes a fuel reservoir. This stands over a first filter 105, a prefeed pump 110 with a second filter means 115 in connection. From the second Filter medium 115 passes the fuel through a line to a high pressure pump 125. The connecting line between the filter medium 115 and the high pressure pump 125 stands with a reservoir via a low pressure relief valve 145 100 connected. The high pressure pump 125 is stopped connected to a Rail 130. The Rail 130 is also called Storage means and is located on fuel lines different injectors 131 in contact. Via a pressure relief valve 135 is the rail 130 with the fuel tank 100 connectable. The pressure relief valve 135 is by means of a coil 136 controllable.
  • the lines between the outlet of the high pressure pump 125 and the inlet of the pressure control valve 135 are called the high pressure area designated.
  • the fuel is in this area under high pressure.
  • the pressure in the high pressure area will detected by a sensor 140.
  • the lines between the Tank 100 and high pressure pump 125 are called the low pressure area designated.
  • a controller 160 acts on the high-pressure pump 125 a control signal AP, the injectors 131 with a control signal A and / or the pressure relief valve 135 with control signal AV.
  • the controller 160 processes various signals various sensors 165, which determine the operating state the internal combustion engine and / or the motor vehicle that the Internal combustion engine drives, characterize. Such a The operating state is, for example, the speed N of the internal combustion engine.
  • the fuel is in the reservoir, is from the feed pump 110 promoted by the filter means 105 and 115.
  • the low pressure relief valve 145 opens gives the connection between the output of the pre-feed pump 110 and the reservoir 100 free.
  • the high pressure pump 125 delivers the amount of fuel Q1 from Low pressure area in the high pressure area.
  • the high pressure pump 125 builds up a very high pressure in the Rail 130.
  • Pressure values from about 30 to 100 bar and with auto-igniting Internal combustion pressures from about 1000 to 2000 bar achieved.
  • the fuel can be injected via the injectors 131 under high pressure the individual cylinders of the internal combustion engine be measured.
  • the pressure P in the rail or in the whole High pressure area detected.
  • the controllable High pressure pump 125 and / or the pressure relief valve 135 is the pressure in the high pressure area is regulated.
  • the output signal filtered by the pressure sensor and based on this filtered signal a correction value for correcting the sensor signal is formed.
  • the sensor signal corrected in this way is used for further control of the internal combustion engine.
  • the map is the Control duration for the injectors read out.
  • a bandpass filter is preferably used as the filter Center frequency of the camshaft frequency or an integer Fraction of the camshaft frequency corresponds.
  • FIG. 2 A corresponding device is shown in FIG. 2 as a block diagram shown.
  • a first output signal PT arrives at the sensor 140 positive sign for a first node 210.
  • the output signal PD of node 210 arrives at a filter 200, which in turn a first cylinder counter 220 acted upon.
  • the signal comes from the cylinder counter 220 optionally to one of the controllers 231, 232, 233 and 234.
  • the controllers 231 to 234 are preferably integral controllers educated.
  • the number of controllers corresponds the number of cylinders of the internal combustion engine, each A controller is assigned to the cylinder of the internal combustion engine. In the illustrated embodiment, it is a four-cylinder internal combustion engine, which is invention but without further ado on internal combustion engines with a different number of cylinders applicable. In this case there is a corresponding one Number of controllers.
  • the signal comes from the controllers 231 to 234 via a second cylinder counter 240 with a positive sign to one second node 250.
  • At the second input of the node 250 lies with a positive sign second output signal PN of the sensor 140.
  • the output signal PK of the second connection point 250 on the one hand a map 164 and the other with a negative sign to the second input of the first node 210.
  • the Map 164 also becomes a signal QK from a quantity specification 162 forwarded.
  • the map 164 acts on the injectors 131 with a control signal A.
  • the sensor 140 provides a signal that corresponds to the pressure in the High pressure area corresponds. This signal arrives first Signal PT at fixed time intervals to a node 210. Furthermore, the output signal of the Sensor as a second signal PN at fixed angular intervals the second node 250. This second signal, the reading out at certain angular intervals is preferably used for calculating the control duration A of the injectors.
  • the second sensor signal PN is detected at a certain angular position of the camshaft or crankshaft. As a rule, the data is recorded at the same one Angular position of the crankshaft or camshaft.
  • the first Signal PT is recorded at much smaller intervals. This signal is preferably at constant time intervals passed on, the signal being output several times per metering is preferably output in a 1 ms grid.
  • the two signals PT and PN compared, the second signal PN using a correction value K is correctable.
  • This difference PD thus formed of the two signals is filtered by the filter 200.
  • the filter 200 is preferably a bandpass filter with a center frequency that corresponds to the frequency with which the pressure vibrations occur. This means the center frequency corresponds to the camshaft frequency or integer Fractions of the camshaft frequency.
  • the signal filtered in this way passes through the cylinder counter 220 to one of the controllers 231 to 234. It is provided that a controller is assigned to each cylinder.
  • the output signal of the controller which adds up the filtered difference PD, arrives at the second connection point as correction value K, where this value K is additive to the second sensor signal PN is superimposed.
  • the sensor signal corrected in this way reaches the one to the map, where there is further control of the internal combustion engine, in particular the determination of the activation duration is used. Furthermore, the signal corrected in this way Junction point 210 compared to the first signal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
EP00120364A 1999-10-12 2000-09-16 Méthode et dispositif pour la commande d'un moteur à combustion interne Expired - Lifetime EP1092858B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19948971 1999-10-12
DE19948971A DE19948971A1 (de) 1999-10-12 1999-10-12 Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1092858A2 true EP1092858A2 (fr) 2001-04-18
EP1092858A3 EP1092858A3 (fr) 2002-07-03
EP1092858B1 EP1092858B1 (fr) 2005-11-30

Family

ID=7925251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00120364A Expired - Lifetime EP1092858B1 (fr) 1999-10-12 2000-09-16 Méthode et dispositif pour la commande d'un moteur à combustion interne

Country Status (4)

Country Link
US (1) US6446605B1 (fr)
EP (1) EP1092858B1 (fr)
JP (1) JP2001132499A (fr)
DE (2) DE19948971A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061705C1 (de) * 2000-12-12 2002-10-10 Bosch Gmbh Robert Verfahren und Vorrichtung zum Betreiben eines Kraftstoffzumesssystems für eine Brennkraftmaschine
US6718948B2 (en) * 2002-04-01 2004-04-13 Visteon Global Technologies, Inc. Fuel delivery module for petrol direct injection applications including supply line pressure regulator and return line shut-off valve
JP2004183550A (ja) * 2002-12-03 2004-07-02 Isuzu Motors Ltd コモンレール圧検出値のフィルタ処理装置及びコモンレール式燃料噴射制御装置
FR2927174B1 (fr) * 2008-02-05 2010-02-12 Renault Sas Procede de detection de microcoupures electriques et de gestion du fonctionnement d'un moteur
DE102019206482A1 (de) * 2019-05-06 2020-11-12 Robert Bosch Gmbh Verfahren zum Ermitteln eines Kraftstoffdrucks in einem Hochdruckspeicher für äquidistante Kurbelwellenwinkelpositionen
DE102019212275A1 (de) 2019-08-15 2021-02-18 Volkswagen Aktiengesellschaft Verfahren zur Adaption einer erfassten Nockenwellenstellung, Steuergerät zur Durchführung des Verfahrens, Verbrennungsmotor und Fahrzeug

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0658231A (ja) * 1992-08-03 1994-03-01 Toyota Motor Corp 燃料噴射装置
US5305723A (en) * 1992-08-27 1994-04-26 Mitsubishi Denki Kabushiki Kaisha Control apparatus for internal combustion engine
EP0725212A2 (fr) * 1995-02-06 1996-08-07 Zexel Corporation Système d'injection de combustible à haute pression
DE19727204A1 (de) * 1997-06-26 1999-01-07 Bosch Gmbh Robert Vorrichtung zur Erkennung eines fehlerhaften Signales
GB2331597A (en) * 1997-11-24 1999-05-26 Siemens Ag Regulating pressure in a common-rail fuel injection system
DE19857972A1 (de) * 1998-12-16 2000-06-21 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE19857971A1 (de) * 1998-12-16 2000-06-21 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0569374U (ja) * 1992-02-28 1993-09-21 富士重工業株式会社 筒内直噴式エンジンの異常警告装置
DE19515776A1 (de) * 1994-04-28 1995-11-02 Nippon Denso Co Verbesserter Aufbau einer volumetrischen Meßvorrichtung
US5609136A (en) * 1994-06-28 1997-03-11 Cummins Engine Company, Inc. Model predictive control for HPI closed-loop fuel pressure control system
US5445129A (en) * 1994-07-29 1995-08-29 Caterpillar Inc. Method for controlling a hydraulically-actuated fuel injection system
DE19548278B4 (de) 1995-12-22 2007-09-13 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE19735561B4 (de) * 1997-08-16 2007-12-20 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE59901733D1 (de) * 1998-03-16 2002-07-18 Siemens Ag Verfahren zum bestimmen der einspritzzeit bei einer direkteinspritzenden brennkraftmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0658231A (ja) * 1992-08-03 1994-03-01 Toyota Motor Corp 燃料噴射装置
US5305723A (en) * 1992-08-27 1994-04-26 Mitsubishi Denki Kabushiki Kaisha Control apparatus for internal combustion engine
EP0725212A2 (fr) * 1995-02-06 1996-08-07 Zexel Corporation Système d'injection de combustible à haute pression
DE19727204A1 (de) * 1997-06-26 1999-01-07 Bosch Gmbh Robert Vorrichtung zur Erkennung eines fehlerhaften Signales
GB2331597A (en) * 1997-11-24 1999-05-26 Siemens Ag Regulating pressure in a common-rail fuel injection system
DE19857972A1 (de) * 1998-12-16 2000-06-21 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE19857971A1 (de) * 1998-12-16 2000-06-21 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Also Published As

Publication number Publication date
JP2001132499A (ja) 2001-05-15
US6446605B1 (en) 2002-09-10
EP1092858B1 (fr) 2005-11-30
DE19948971A1 (de) 2001-04-19
EP1092858A3 (fr) 2002-07-03
DE50011741D1 (de) 2006-01-05

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