EP1178202A2 - Procédé et dispositif de commande d'un moteur à combustion interne - Google Patents

Procédé et dispositif de commande d'un moteur à combustion interne Download PDF

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Publication number
EP1178202A2
EP1178202A2 EP01112510A EP01112510A EP1178202A2 EP 1178202 A2 EP1178202 A2 EP 1178202A2 EP 01112510 A EP01112510 A EP 01112510A EP 01112510 A EP01112510 A EP 01112510A EP 1178202 A2 EP1178202 A2 EP 1178202A2
Authority
EP
European Patent Office
Prior art keywords
variable
internal combustion
combustion engine
properties
frequency
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
EP01112510A
Other languages
German (de)
English (en)
Other versions
EP1178202B1 (fr
EP1178202A3 (fr
Inventor
Peter Skala
Dirk Samuelsen
Rüdiger FEHRMANN
Markus Jung
Gabriel Scolan
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 EP1178202A2 publication Critical patent/EP1178202A2/fr
Publication of EP1178202A3 publication Critical patent/EP1178202A3/fr
Application granted granted Critical
Publication of EP1178202B1 publication Critical patent/EP1178202B1/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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D41/1408—Dithering techniques
    • 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
    • F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
    • 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
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1015—Engines misfires

Definitions

  • the invention relates to a method and a device for controlling an internal combustion engine according to the General terms of the independent claims.
  • Such a method and such a device for Regulation of an internal combustion engine is from DE 195 27 218 known.
  • To form the manipulated variable filtered the measured variable with at least one filter medium.
  • Each cylinder is usually used for a smooth running control a regulation assigned to the internal combustion engine depending on a control deviation assigned to it Actuating variable for the cylinder assigned to it.
  • the Control deviation results from the individual cylinders assigned actual values and setpoints. Serve as actual value the time intervals between two burns or the duration at least one segment that by a segment wheel is defined.
  • the setpoints preferably result from an averaging over all actual values.
  • the distance between two pulses is usually used as a segment called on a so-called segment wheel. It is usually the distance between two burns in divided into two segments.
  • the segment wheel can on the Camshaft or the crankshaft attached and supplies two pulses per combustion process. Alternatively, too be provided that the segment pulses starting from other signals are generated.
  • the actual and target values are preferred determined frequency-specifically, d. H. the output signal of the Speed sensor is filtered with band passes and outgoing The actual and target values are derived from this filtered signal formed for one frequency. It is envisaged that the Amplification of the bandpass and / or the frequency-specific Control deviation is weighted. These weighting factors are usually defined in the context of the application. Furthermore, it is provided that for the formation of the frequency-specific actual values for different Frequencies and different types of vehicles different segments are selected that the frequency and vehicle-specific phase shifts between volume and speed vibration. in the The framework of the application is therefore also determined which segments for actual value formation and or setpoint formation be used.
  • the Application effort can be significantly reduced.
  • the time involved and the effort involved Measurement technology can be reduced because there are no external measuring devices are necessary.
  • the properties of the Adapt filter media individually to the respective vehicle.
  • the properties of the Filter media in preferred operating states Prefers the determination takes place at the end of the production of the vehicle and / or as part of the maintenance of the vehicle. This allows the properties over the entire life of the vehicle be chosen optimally.
  • the filter means as Bandpass are designed with adjustable gain.
  • the gain of the bandpass is adapted.
  • the filter means determine an actual value and / or one Setpoint by evaluating certain speed segments, see above this segment selection becomes the property of the filter media designated.
  • the gain and the segment selection determine in essential the properties of a smooth running control. By an exact adjustment of these sizes to the respective Vehicle driving behavior of the vehicle can be favorable to be influenced.
  • FIG. 1 2 shows a block diagram of the device according to the invention
  • FIG. 2 a detailed representation as a block diagram of the 3 and a flowchart for Clarification of the procedure according to the invention.
  • the procedure according to the invention is described below Example of a smooth running control shown.
  • the procedure according to the invention is not based on this Embodiment limited, it can also with others Controls and / or regulation for internal combustion engines be used. It can then be used in particular if, based on at least one measured variable, a Manipulated variable can be specified. The internal combustion engine with applied to this manipulated variable, this has a corresponding change in the measured variable.
  • FIG 1 is a smooth running control for a Internal combustion engine roughly as a block diagram shown.
  • the internal combustion engine is designated 100.
  • a quantity request specification 110 transfers a quantity request MW a link point 115 to a not shown Amount control unit of the internal combustion engine 100.
  • the speed N the internal combustion engine is activated by means of an encoder 125 detected.
  • a corresponding signal arrives at a Smooth running control 130.
  • the speed signal is from the Filtering 140 evaluated, which in turn is a Control variable determination 145 with a corresponding signal applied.
  • the manipulated variable determination 145 determines one Correction set K, which in node 115 with the Quantity request MW is linked.
  • the is detected, for example, with an accelerator pedal from which Quantity request specification 110 determines a quantity request MW. With this size or a size corresponding to that size becomes the quantity signal box of the internal combustion engine 100 fed, this quantity signal box then the amount of fuel to be injected according to this signal sets.
  • a quantity signal box are usually Solenoid valves, piezo actuators or other actuators used, which, depending on their control signal, the start of injection, the end of injection and thus also the injection quantity establish.
  • the filter medium preferably contains at least one Bandpass with adjustable gain. This also determines Filter means 140 at least one actual value and or at least one setpoint by evaluating certain Segments of a speed signal. The characteristics of the Filter media are created by reinforcing the bandpass and the segments that form the actual values and / or Target values are used, determined.
  • the actual value acquisition 140 is shown in more detail in FIG shown. Elements already described in FIG. 1 designated in Figure 2 with corresponding reference numerals.
  • the output signal of the sensor 125 is a first filter 210 and fed to a second filter 220.
  • the output signal of the first filter 210 passes through a node 215 to a first setpoint determination 212 and a first Actual value determination 214.
  • the output signal of the second Filter 220 arrives via a link point 225 a second setpoint determination 222 and a second Actual value determination 224.
  • the nodes 215 and 225 are from a Gain factor specification 230, each with a specifiable Gain factor applied. With this, the Output values of band passes 210 and 220 multiplicative connected. This allows bandpasses with adjustable Reinforcement can be realized.
  • the output signal NWS of the first setpoint determination 212 arrives with positive sign and the output signal NWI to the first actual value determination 214 with a negative sign a node 216.
  • the first control deviation NWL arrives at an addition point 240 and from there to the block 145th
  • the output signal KWS of the second setpoint determination 222 arrives with a positive sign and the output signal KWI the second actual value determination 224 with a negative sign to a node 226.
  • the second control deviation KWL arrives at addition point 240
  • the control deviation is at the output of the addition point 240 L are available for determining the manipulated variable 145, which is essentially the actual smoothness regulator includes, is forwarded.
  • the filters are 210 and 220 um bandpass filters, whose center frequency at Filter 210 at the camshaft frequency, filter 220 and is at the crankshaft frequency.
  • filters can still further filters with integers Multiples of the crankshaft frequency and / or the Camshaft frequency are to be provided.
  • 1 is a band pass to provide the center frequencies for an integer Are multiples of the camshaft frequency.
  • the speed signal in Spectral components separated. Determine for each spectral component the first, second and third actual value generator and the first, second and third setpoint generator frequency-specific Target and actual values. The calculation of the target and Actual values are preferably given for the individual spectral components differently.
  • the speed signal is generated by means of bandpasses 210 and 220 separated for the individual frequencies. For any frequency calculates the first actual value specification 214 and the second Actual value specification 224 a frequency-specific actual value. Accordingly, it can be provided that for each frequency first setpoint specification 212 and the second setpoint specification 220 calculates a frequency-specific setpoint.
  • the adjustable bandpass amplification 210 and 220 can also be provided that the frequency-specific control deviations using weighting factors are important.
  • the weighting factors and / or the Bandpass amplification is selected so that the Loop gain is the same for all frequencies.
  • the segment selection is preferably frequency-specific. This means that the individual frequencies will be different Segments for calculating the actual values and / or of the setpoints. In node 216 and 226 then becomes the frequency specific control deviation determined. Furthermore, the segment selection is almost arbitrary predetermined.
  • the properties of the filter media also referred to below as control parameters be designated, adapted. This is especially true for the reinforcement of the band passes and for the Segment selection. According to the invention, this is done as follows proceed.
  • the assignment is a Speed response to the cylinder causing it is crucial. This should namely more or less accordingly Get amount of fuel.
  • the assignment can be made determine the frequency response.
  • the frequency shift is the phase shift between fuel quantity and engine speed. Starting from the phase shift the segments in which the reaction falls. This Segments are evaluated to form the actual values.
  • the Actual value determinations 214 and 224 and / or the Setpoint determinations 212 and 222 evaluate the values determined in this way Segments for forming the actual values and / or setpoints. That the choice of segment depends on the Phase shift of the controlled system is calculated.
  • Segments into which the reaction following the injection falls.
  • the segments are usually different for each frequency.
  • the manipulated variable with which Quantity actuator is applied an excitation variable superimposed.
  • the fuel quantity signal is preferably turned on periodic signal superimposed.
  • This quantity excitation generates Speed fluctuations that have a similar effect as the tolerances of the system, d. H. kick it Speed fluctuations. Based on the quantity excitation and the resulting speed fluctuations can do that Determine the transmission behavior of the internal combustion engine 100.
  • the transmission behavior of the internal combustion engine is in essentially by the phase shift and the Line reinforcement defined.
  • Control parameters are then the Control parameters calculated. These are essentially the Bandpass reinforcement and segment selection.
  • a first step 300 checks whether there is an operating state in which the Adaptation can take place. It is particularly advantageous if the adaptation is triggered by external influences. So can the adaptation preferably after assembly of the Internal combustion engine when it is operated for the first time be performed. Furthermore, it is advantageous if the adaptation at regular intervals during the maintenance of the Internal combustion engine or the vehicle.
  • Step 310 the quantity excitation, i. H. the MW quantity request an additional signal is superimposed.
  • this additional signal which is also called Excitation quantity is called a periodic signal, whose frequency is preferably the crankshaft frequency, the Camshaft frequency and / or an integer multiple corresponds to these frequencies.
  • the subsequent query 320 checks whether there is a waiting time since the quantity excitation expired in step 310. is if this is not the case, the quantity request will continue to be Excitation size overlaid. If the waiting time has expired, so the resulting speed fluctuations in step 330 detected. In the subsequent step 340, a counter Z elevated. The query 350 checks whether the counter Z is larger as a value K. The value K corresponds to the number of different quantity suggestions.
  • Query 350 recognizes that the number Z is greater than the value K is d. H. there were different quantity suggestions performed and the corresponding speed fluctuations the transmission behavior is recorded in step 360 of the engine, in particular through the amplification Amplitude response and the phase shift by the motor are determined. Based on these sizes determined the control parameters in step 370.
  • the internal combustion engine can deviate, calculates the Smoothness control 130 the control parameters for the Smooth running control, such as segment selection and the gain of bandpass filters 210 and 220.
  • control system independently determines the Control parameters required for the smooth running control are.

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  • 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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP01112510A 2000-08-05 2001-05-23 Procédé et dispositif de commande d'un moteur à combustion interne Expired - Lifetime EP1178202B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10038339 2000-08-05
DE10038339A DE10038339A1 (de) 2000-08-05 2000-08-05 Verfahren und Vorrichtung zur Überwachung eines Sensors

Publications (3)

Publication Number Publication Date
EP1178202A2 true EP1178202A2 (fr) 2002-02-06
EP1178202A3 EP1178202A3 (fr) 2004-06-30
EP1178202B1 EP1178202B1 (fr) 2006-05-17

Family

ID=7651490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112510A Expired - Lifetime EP1178202B1 (fr) 2000-08-05 2001-05-23 Procédé et dispositif de commande d'un moteur à combustion interne

Country Status (4)

Country Link
US (1) US6665607B2 (fr)
EP (1) EP1178202B1 (fr)
JP (1) JP2002097991A (fr)
DE (2) DE10038339A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113093705A (zh) * 2021-04-02 2021-07-09 宁夏大学 激励信号的发生方法及激励信号发生系统

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DE10221681B4 (de) * 2002-05-16 2005-12-08 Mtu Friedrichshafen Gmbh Verfahren zur Regelung einer Brennkraftmaschinen-Generator-Einheit
DE102004005325A1 (de) * 2004-02-04 2005-08-25 Conti Temic Microelectronic Gmbh Verfahren zur Detektion des Brennbeginns einer Brennkraftmaschine
DE102005027650B4 (de) * 2005-06-15 2018-02-08 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
DE102006056860A1 (de) * 2006-12-01 2008-06-05 Conti Temic Microelectronic Gmbh Verfahren und Vorrichtung zur Steuerung der Betriebsweise einer Brennkraftmaschine
DE102007002782A1 (de) 2007-01-18 2008-07-31 Siemens Ag Drehantrieb mit geraden Primärteilsegmenten
GB2463022B (en) * 2008-08-28 2012-04-11 Gm Global Tech Operations Inc A method for correcting the cylinder unbalancing in an internal combustion engine
FR2955387B1 (fr) * 2010-01-21 2012-03-09 Commissariat Energie Atomique Mesure d'un mouvement cyclique d'une piece ferromagnetique
DE102015202949A1 (de) 2015-02-18 2016-08-18 Robert Bosch Gmbh Verfahren und Vorrichtung zum Steuern eines mehrere Zylinder umfassenden Hubkolbenmotors

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Publication number Priority date Publication date Assignee Title
CN113093705A (zh) * 2021-04-02 2021-07-09 宁夏大学 激励信号的发生方法及激励信号发生系统
CN113093705B (zh) * 2021-04-02 2022-02-11 宁夏大学 激励信号的发生方法及激励信号发生系统

Also Published As

Publication number Publication date
DE10038339A1 (de) 2002-02-14
JP2002097991A (ja) 2002-04-05
EP1178202B1 (fr) 2006-05-17
EP1178202A3 (fr) 2004-06-30
DE50109789D1 (de) 2006-06-22
US20020120387A1 (en) 2002-08-29
US6665607B2 (en) 2003-12-16

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