EP1469179A1 - Procédé et dispositif pour réguler un moteur à combustion interne - Google Patents

Procédé et dispositif pour réguler un moteur à combustion interne Download PDF

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Publication number
EP1469179A1
EP1469179A1 EP04100457A EP04100457A EP1469179A1 EP 1469179 A1 EP1469179 A1 EP 1469179A1 EP 04100457 A EP04100457 A EP 04100457A EP 04100457 A EP04100457 A EP 04100457A EP 1469179 A1 EP1469179 A1 EP 1469179A1
Authority
EP
European Patent Office
Prior art keywords
correction value
signal
lambda
internal combustion
combustion engine
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
EP04100457A
Other languages
German (de)
English (en)
Other versions
EP1469179B1 (fr
Inventor
Andreas Michalske
Thomas Zein
Ralf Knitz
Ruediger Fehrmann
Bjoern Bischoff
Maik Schaufler
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 EP1469179A1 publication Critical patent/EP1469179A1/fr
Application granted granted Critical
Publication of EP1469179B1 publication Critical patent/EP1469179B1/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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1458—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with determination means using an estimation
    • 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
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1479—Using a comparator with variable reference
    • 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
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1486—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor with correction for particular operating 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • 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
    • F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
    • F02D2200/602—Pedal position
    • 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
    • F02D2250/18—Control of the engine output torque
    • F02D2250/21—Control of the engine output torque during a transition between engine operation modes or states
    • 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
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • 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
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor

Definitions

  • the invention relates to a method and a device for controlling the Internal combustion engine according to the preambles of the independent claims.
  • a method and a device for controlling an internal combustion engine in which an expected lambda signal is specified based on operating parameters and by means of a measured lambda signal is detected by a sensor, and with the aid of the comparison of the lambda signals a first correction value for a Fuel mass signal is determined is from the unpublished document DE 102 21 376 known.
  • the method described there is usually called Quantity average adaptation called. Using this approach you can Injection quantity errors of a fuel metering system can be determined. This Injection quantity error gives the deviation between the desired one to be injected Amount of fuel and the amount of fuel actually injected.
  • the first correction value is the quantity error characterized quantity-determining control element of the internal combustion engine.
  • FIG. 1 are the essential elements of a device for controlling a Internal combustion engine shown as a block diagram.
  • a setpoint is 200 designated. This is the output signals N, P2, T2 and ML of a first Signal specification 205 supplied. Furthermore, the output signal QK arrives Quantity specification 110 via a correction device 220 for the target value specification.
  • the Output signal LB of the setpoint specification via a link point 235 to one Control 230.
  • the output signal K of control 230 arrives at the second input the correction device 220. This is also at the node 235 Output signal LM of a lambda sensor 240 on.
  • An accelerator pedal sensor is designated 130, this provides a signal FP that the Characterized driver request.
  • a corresponding signal can also be obtained by other means, such as a vehicle speed control.
  • the Signal FP is subjected to a torque specification 330, which corresponds to the driver's request corresponding torque size M determined.
  • This moment size comes across Filter means 320 as a filtered torque variable MF to an actuating element 150 that the Controls fuel metering in the internal combustion engine.
  • Filter means 320 can include other sizes in the calculation of the torque sizes and the filtered Torque magnitude MF, which is used to form the control signal for the actuating element 150, received.
  • the torque size M and / or the Filtered torque size MF determines the quantity 110 the injected Fuel quantity.
  • the functioning of the elements 130, 330, 320 in connection with the Control element 150 is shown in detail in DE 101 38 493.
  • the output signal K of the control 230 passes through a conversion 300 and a subsequent parameter correction 310 to the filter means.
  • the parameter correction additionally processes a signal of a parameter specification 315.
  • the first signal specification 205 is preferably a sensor for Detection of a speed signal N of the internal combustion engine, a pressure signal P2, the characterizes the pressure in the intake tract of the internal combustion engine, and / or one Temperature signal T2, which characterizes the temperature of the air in the intake tract. at an internal combustion engine with a supercharger is the Charge air temperature T2 and charge pressure P2. In an internal combustion engine without a supercharger it is about the ambient temperature and the ambient air pressure.
  • the signal ML which characterizes the air mass supplied to the internal combustion engine, is preferably also provided by a sensor.
  • This formula gives the relationship between the lambda signal LB, the Air mass signal ML and the injection quantity QK. This is the Air mass signal ML by one measured variable.
  • the special measures are provided that the signal LB such correct that it can also be used in single-station operating points.
  • the output signal LB of the setpoint specification 200 is included compared to the output signal LM of the lambda sensor 240.
  • controller 230 determines a correction value K Correction of the fuel mass signal QK.
  • the setpoint LB for the lambda signal with the Output signal LM of the lambda sensor compared.
  • the deviation of these two Values is a measure of the current injection mass error. That is, is the deviation LD zero, that is, the output signal LB of the setpoint specification and the output signal LM of the lambda sensor are the same, so that corresponds to the setpoint 200 Processed fuel mass of the fuel mass actually injected. They give way two values from each other, the controller 230 specifies a correction value K with which the fuel mass signal QK is corrected until the corrected one Fuel mass signal QKK corresponds to the fuel mass actually injected.
  • the amount of fuel injected is often used to control other functions used. These additional functionalities use the corrected fuel quantity QKK, this is not a problem. Use these other functionalities against it a moment size, it can happen that this functionality is impaired is. This problem can be eliminated if, based on the correction value K a correction value MK for a torque variable is determined for the fuel quantity.
  • the load shock absorber functionality is a filter for one Torque size, the transmission behavior of which depends on the torque size.
  • the Filter means 320 essentially includes the functionality of the load shock absorber. This filter means 320 can, for example, be designed such that the change of the torque is limited in the range of certain values M0 of the torque. This means If the moment M passes through one or more values M0, the change in the Moments over time t limited to maximum permissible values. An example is in Figure 2 shown.
  • the correction value K takes values not equal to 0 , this has the consequence that one around the Value K of corrected fuel quantity is to be injected.
  • Limitation of the change in the range of the value M0 corrected by the value MK for the moment is happening.
  • the corresponding curve is shown in dotted lines in FIG.
  • the value M0 can also include the value X, which defines the areas within the the limitation will be corrected.
  • the corresponding values M0 and / or X are determined by the parameter specification 315 provided and in the parameter correction 310 with a value MK, which is based on the correction value K was determined for the fuel quantity, corrected.
  • This Correction can be additive and / or multiplicative.
  • An external torque intervention of a further controller can be used as a further functionality be considered. This means that, for example, traction control Moment request transmitted to the control of the internal combustion engine. This Torque request can be corrected accordingly.

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  • 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)
EP20040100457 2003-04-16 2004-02-06 Procédé et dispositif pour réguler un moteur à combustion interne Expired - Lifetime EP1469179B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003117464 DE10317464A1 (de) 2003-04-16 2003-04-16 Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE10317464 2003-04-16

Publications (2)

Publication Number Publication Date
EP1469179A1 true EP1469179A1 (fr) 2004-10-20
EP1469179B1 EP1469179B1 (fr) 2007-03-07

Family

ID=32892366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040100457 Expired - Lifetime EP1469179B1 (fr) 2003-04-16 2004-02-06 Procédé et dispositif pour réguler un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP1469179B1 (fr)
JP (1) JP2004316646A (fr)
DE (2) DE10317464A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687809A2 (fr) * 1994-06-17 1995-12-20 Hitachi, Ltd. Dispositif et méthode de commande du couple de sortie d'un moteur à combustion interne
EP1132600A2 (fr) * 2000-03-10 2001-09-12 Siemens Aktiengesellschaft Méthode d'adaptation pour la commande d' injection
DE10208426A1 (de) * 2001-02-28 2002-09-19 Denso Corp Gerät zum Steuern einer Dieselkraftmaschine
DE10138493A1 (de) 2001-08-04 2003-02-13 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Antriebseinheit eines Fahrzeugs
EP1129279B1 (fr) * 1998-11-03 2003-03-05 Robert Bosch Gmbh Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence
DE10221376A1 (de) 2002-05-14 2003-11-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687809A2 (fr) * 1994-06-17 1995-12-20 Hitachi, Ltd. Dispositif et méthode de commande du couple de sortie d'un moteur à combustion interne
EP1129279B1 (fr) * 1998-11-03 2003-03-05 Robert Bosch Gmbh Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence
EP1132600A2 (fr) * 2000-03-10 2001-09-12 Siemens Aktiengesellschaft Méthode d'adaptation pour la commande d' injection
DE10208426A1 (de) * 2001-02-28 2002-09-19 Denso Corp Gerät zum Steuern einer Dieselkraftmaschine
DE10138493A1 (de) 2001-08-04 2003-02-13 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Antriebseinheit eines Fahrzeugs
DE10221376A1 (de) 2002-05-14 2003-11-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Also Published As

Publication number Publication date
JP2004316646A (ja) 2004-11-11
DE502004003097D1 (de) 2007-04-19
DE10317464A1 (de) 2004-11-11
EP1469179B1 (fr) 2007-03-07

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