EP1815118A1 - Dispositif et procede de determination de la quantite de nox emise par un moteur diesel de vehicule automobile et systemes de diagnostic et de controle du fonctionnement du moteur comprenant un tel dispositif. - Google Patents
Dispositif et procede de determination de la quantite de nox emise par un moteur diesel de vehicule automobile et systemes de diagnostic et de controle du fonctionnement du moteur comprenant un tel dispositif.Info
- Publication number
- EP1815118A1 EP1815118A1 EP05822931A EP05822931A EP1815118A1 EP 1815118 A1 EP1815118 A1 EP 1815118A1 EP 05822931 A EP05822931 A EP 05822931A EP 05822931 A EP05822931 A EP 05822931A EP 1815118 A1 EP1815118 A1 EP 1815118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- mixture
- determining
- combustion
- admitted
- 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
Links
- 238000000034 method Methods 0.000 title claims description 5
- 239000000203 mixture Substances 0.000 claims abstract description 115
- 238000002485 combustion reaction Methods 0.000 claims abstract description 92
- 239000000446 fuel Substances 0.000 claims abstract description 47
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000001301 oxygen Substances 0.000 claims abstract description 28
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 230000007257 malfunction Effects 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000012824 chemical production Methods 0.000 claims 1
- 238000003745 diagnosis Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
- F02D35/026—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures 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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
- F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
-
- 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
- F02D41/146—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 NOx content or concentration
- F02D41/1461—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 NOx content or concentration of the exhaust gases emitted by the engine
- F02D41/1462—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 NOx content or concentration of the exhaust gases emitted by the engine with determination means using an estimation
Definitions
- Device and method for determining the amount of NOx emitted by a diesel engine of a motor vehicle and systems for diagnosing and monitoring the operation of the engine comprising such a device.
- the present invention relates to a device for determining the amount of NOx emitted by a motor vehicle diesel engine associated with common rail fuel supply means for the cylinders thereof, of the type comprising means for acquiring the fuel. pressure in at least one cylinder of the engine and means for determining the oxygen mass fraction of the mixture admitted into the cylinder.
- the invention also relates to systems for diagnosing and monitoring the operation of the engine using such a device.
- the amount of nitrogen oxides, or NOx, emitted by a diesel engine is an important factor in the operation thereof.
- the engine is also generally associated with depollution means arranged in the exhaust line thereof, such as for example a NOx trap, and the operation of the engine is then controlled to optimize the operation of the pollution control means.
- the engine can thus be controlled according to several modes of operation by changing the quantities of fuel and air injected into the cylinders. For example, the engine can run in rich mode for regeneration of the NOx trap.
- a bad adjustment of the engine due for example to the aging of the injectors and / or the cylinders, has the effect of increasing the emission of NOx.
- the amount of NOx emitted by a diesel engine is representative of the state of operation of the engine.
- Devices for determining the amount of NOx emitted by a motor vehicle diesel engine associated with common roll feed means thereof use the engine control values to determine the amount of NOx emitted, such as example of injection maps, and / or air flow EGR maps if the engine is associated with an exhaust gas recirculation loop (EGR).
- EGR exhaust gas recirculation loop
- the characteristics of the engine evolve over time due to the aging of its organs, such as its injectors and cylinders.
- the amount of NOx determined can be highly erroneous.
- Other systems for determining the amount of NOx emitted by a diesel engine determines the average temperature of the ignited mixture in the cylinders to deduce a quantity of NOx at steady state and consequently the mass of NOx emitted per cycle. engine by the engine.
- the object of the present invention is to solve the aforementioned problem by proposing a device for determining the amount of NOx emitted by a diesel engine which is precise, low in computation time and which determines in real time the amount of NOx emitted by engine.
- the subject of the invention is a device for determining the amount of NOx emitted by a motor vehicle diesel engine associated with common rail fuel supply means for the cylinders thereof, of the type comprising means for acquiring the pressure in at least one cylinder of the engine and means for determining the oxygen mass fraction of the mixture admitted into the cylinder, characterized in that it comprises means for determining a temperature of the flame front during the combustion of the mixture admitted into the cylinder;
- means for determining the mass of fuel burned in the cylinder means for calculating the amount of NOx emitted by the combustion of the mixture in the cylinder as a function of the pressure acquired, the oxygen mass fraction of the mixture, the temperature of the flame front and the mass of burned fuel determined .
- the aforementioned device comprises at least one of the following features:
- the means for determining the mass of fuel burned in the cylinder comprise means for determining the instantaneous quantity of heat released during the combustion of the mixture admitted into the cylinder and means for determining the instantaneous mass of fuel burned in the cylinder; cylinders according to the latter and the heating potential of the fuel injected into the cylinder;
- the means for determining the instantaneous quantity of heat released during the combustion of the mixture are adapted to determine it from the first principle of thermodynamics as a function of the crankshaft angle of the cylinder and the pressure therein ;
- the means for determining the temperature of the flame front comprise means for determining the temperature of the admitted unburned mixture during the combustion thereof and means for determining the temperature of the flame front in the cylinder as a function of this temperature of the admitted unburned mixture;
- thermodynamic model of isentropic compression according to the relation:
- T n nTb 1 T nb and P nb are respectively the temperature of the unburned admitted mixture and the corresponding pressure in the cylinder during the combustion of the mixture, T ⁇ b and P 0 are respectively a reference temperature and a reference pressure of the mixture admitted in the cylinder to a predetermined time before the start of the combustion of the admitted mixture, and k is a predetermined polytropic coefficient;
- the means for determining the temperature of the mixture admitted during combustion thereof comprise:
- o P o ⁇ V Q nb nx R - means for determining the flame front temperature is adapted to determine a theoretical adiabatic temperature of the flame front;
- the means for determining the adiabatic temperature of the flame front are adapted to determine it from a thermodynamic model for the conservation of the enthalpy of the reagents and the products of the the combustion of the admixture admitted into the cylinder as a function of the temperature of the admitted unburned mixture during the combustion thereof and the oxygen mass fraction thereof;
- thermodynamic model of conservation of enthalpy is a polynomial model of the first or second order
- the polynomial model is a model according to the relation:
- T d c s + c 2 x T n b + c 3 x XO 2
- ad T the adiabatic temperature of the flame front
- XO 2 is the mass fraction of oxygen in the mixture, and this, Cz and C 3 are predetermined coefficients
- the polynomial model is a model according to the relation:
- T ad C 1 + C 2 x Tnb + C 3 x XO 2 + C 4 x P
- T ad is the adiabatic temperature of the flame front
- XO 2 is the oxygen mass fraction of the mixture
- P is the pressure in the cylinder
- ci, Cz, C 3 , C 4 are predetermined coefficients
- the polynomial model is a model according to the relation:
- T ad is the adiabatic temperature of the flame front
- XO 2 is the oxygen mass fraction of the mixture
- P is the pressure in the cylinder
- C 2, C 3, C 4 and C 5 are predetermined coefficients
- the means for determining the quantity of NOx emitted by the combustion of the mixture admitted into the cylinder are suitable for determining it from a chemical model of NOx production during the combustion of the mixture in the cylinder; and - the chemical model is a model according to the relation:
- QN ⁇ is the latter uencing instantaneous NOx ity emitted by the engine
- P is the pressure in the cylinder
- T ad is the adiabatic temperature of the flame front in the cylinder
- XO 2 is the mass fraction of oxygen in the mixture admitted into the cylinder
- MCB is the instant mass of fuel burned in the cylinder
- MCI is the mass of fuel injected into the cylinder
- b, c and d are predetermined parameters.
- the subject of the invention is also a method for determining the amount of NOx emitted by a motor vehicle diesel engine comprising common rail fuel supply means for the cylinders thereof, of the type comprising an acquisition step. the pressure in at least one cylinder of the engine, and a step of determining the oxygen mass fraction of the mixture admitted into the cylinder, characterized in that it comprises a step of: determining the temperature of the flame front during the combustion of the mixture admitted into the cylinder;
- the subject of the invention is also a system for diagnosing malfunction of a motor vehicle diesel engine, characterized in that it comprises a device of the aforementioned type, means for comparing the quantity of NOx emitted at a predetermined threshold and means for triggering an alarm when the amount of NOx is greater than this threshold.
- the invention also relates to a system for controlling the operation of a motor vehicle diesel engine associated with NOx depollution means arranged in an exhaust line thereof, characterized in that it comprises a device of the aforementioned type, means for calculating the amount of NOx stored in the depollution means as a function of the amount of NOx determined by the device and control means, as a function of the amount of NOx stored, of the operation of the engine for pilot the operation of the means of depollution.
- the invention also relates to a system for controlling the operation of a motor vehicle diesel engine, characterized in that it comprises a device of the aforementioned type and adjustment means adapted to adjust the operation of the supply means according to the quantity of NOx emitted determined to correct drifts of the operation thereof.
- this system is characterized in that the engine is associated with means for recirculating part of the exhaust gas at the inlet thereof, and in that the adjustment means are furthermore adapted to adjust the operation of the recirculation means as a function of the quantity of NOx emitted determined, to correct drifts of the operation of the supply means and / or recirculation.
- FIG. 1 is a schematic view of a diesel engine propulsion unit of a motor vehicle associated with a device according to the invention.
- FIG. 2 is a schematic view in more detail of the device according to the invention.
- FIG. 3 is a flowchart of the operation of the device according to the invention.
- FIG. 4 is a graph of results returned by the device according to the invention during a test campaign.
- a diesel engine 10 of a motor vehicle is associated with means 12 with a common fuel supply ramp for its cylinders, for example comprising a common supply rail delivering fuel under high pressure to clean piloted injectors. to inject into the engine cylinders 10 of the fuel in the form of multiple injections for example.
- the engine 10 is also associated with a loop 14 for recirculating part of the exhaust gas, or EGR, at the inlet thereof.
- the recirculation loop 14 comprises a bypass line 16 of an exhaust line 18 of the engine 10.
- This bypass line 16 is capable of taking exhaust gases at the outlet of the engine 10 and delivering them to means 20 for admitting air / exhaust gas mixture at the inlet of the Engine 10.
- These intake means 20 also receive air from an air inlet 22 and deliver to the engine 10 an air / exhaust gas mixture.
- means 24 of pollution control are arranged in the exhaust line 18.
- the means 24 of depollution comprise by for example a NOx trap adapted to store NOx and destock them in a non-polluting form for their discharge into the atmosphere.
- a unit 30 for controlling the operation of the engine.
- the unit 30 is connected to means 32 for acquiring (i) the pressure in each cylinder of the engine, comprising for example a piezoelectric deformation sensor arranged in the cylinder head adapted to measure the pressure of the combustion chamber of the (ii) the engine speed, comprising for example a speed sensor, (iii) the desired engine torque by the driver of the vehicle, comprising, for example, a sensor of the position of the accelerator pedal of the vehicle, and iv) the motor angle, comprising for example a hall effect sensor arranged on the motor shaft.
- the pressure in each cylinder of the engine comprising for example a piezoelectric deformation sensor arranged in the cylinder head adapted to measure the pressure of the combustion chamber of the (ii) the engine speed, comprising for example a speed sensor, (iii) the desired engine torque by the driver of the vehicle, comprising, for example, a sensor of the position of the accelerator pedal of the vehicle, and iv) the motor angle, comprising for example a hall effect sensor arranged on the motor shaft
- the unit 30 is also connected to means 34 for acquiring the air flow at the engine inlet, for example a flow meter arranged in the air inlet 22 of the intake means 20.
- the unit 30 is adapted to determine injection instructions for the feed means 12, in particular a pilot injection set point and a main injection set point for each cylinder and for each engine cycle, as a function of the speed, the torque and the crankshaft angle of the cylinder, the latter being determined by the unit 30 as a function of the engine angle acquired.
- the unit 30 also determines, for the engine cycle, an airflow EGR setpoint for the intake means 20 as a function of the speed, the torque and the crankshaft angle of the cylinder.
- the unit 30 is also adapted to implement a strategy for controlling the operation of the means 24 of depollution in controlling the phasing and / or the quantity of fuel injected into the cylinders in order to control the storage / retrieval states of the depollution means 24.
- the engine 10 is associated with a device according to the invention for determining the amount of NOx emitted by it.
- This device determines such an amount based on the amount of admixture burned into the combustion chamber of each cylinder during the propagation therein of a flame front, the admitted mixture in a cylinder being defined as the sum quantities of fresh air, exhaust gas and fuel admitted into the cylinder.
- this device is implemented by a subunit 36 of the unit 30.
- the device can also be implemented by a dedicated information processing unit. .
- the amount of NOx emitted by the engine is determined according to a chemical model of the production of NOx during the combustion of the mixture admitted into a cylinder of the engine.
- This model has the variable oxygen mass fraction XO 2 of the mixture admitted into the cylinder, the instantaneous mass MCB of fuel burned in the cylinder, the pressure P in the cylinder and a theoretical temperature Tad of the flame front propagating in the chamber. the combustion of the cylinder, and preferably, a theoretical adiabatic temperature of the flame front, as will be explained in more detail later.
- the device for determining the amount of NOx emitted by the engine 10 comprises means 50 for determining the oxygen mass fraction XO 2 of the admitted mixture to be burned in the cylinder during a motor cycle. These means 50 receive as input the acquired airflow DA and the TEGR rate of recycled exhaust gas at the engine inlet.
- the TEGR rate of the recycled exhaust gas is determined by the unit 30 as a function of the airflow DA acquired and the operating point of the motor, for example from a predetermined map stored in the unit 30.
- the means 50 also receive the total amount MCI of fuel injected into the cylinder for the engine cycle and are adapted to determine the richness of the mixture admitted according to it, as is known per se. This MCI quantity is determined by the unit 30 as a function of the injection instructions delivered to the supply means 12, for example by summing up the quantities of fuel injected into the cylinder for the engine cycle.
- the means 50 for determining the oxygen mass fraction is determined by the unit 30 as a function of the injection instructions delivered to the supply means 12, for example by summing up the quantities of fuel injected into the cylinder for the engine cycle.
- XO 2 of the mixture determines it according to the richness of the admitted mixture and the TEGR rate determined on the basis of a combustion balance of the admitted mixture, the mass fraction of oxygen XO 2 admitted being classically directly proportional to the richness and at the rate of EGR, as is known per se in the state of the art
- the device according to the invention also comprises means 52 for determining the instantaneous quantity MCB of fuel burned in the cylinder during the engine cycle.
- the means 52 comprise means 54 for determining the instantaneous amount of heat released by the combustion of the mixture in the cylinder during the combustion phase of the cycle thereof. This determination is made as a function of the acquired pressure P in the combustion chamber of the cylinder and the crankshaft angle ⁇ of the cylinder, from the first principle of thermodynamics, according to the relation:
- d ⁇ is a predetermined variation of the crankshaft angle ⁇ of the cylinder
- dQ is the amount of instantaneous heat released by the combustion of the mixture during the variation d ⁇ of the crankshaft angle
- V and P are the volume of the combustion chamber and the pressure therein at the start time of the variation d ⁇ of the crankshaft angle respectively
- dV and dP are the variations of the volume of the combustion chamber and the pressure in the this one corresponding to the variation d ⁇ of the crank angle respectively
- k a predetermined polytropic coefficient
- This quantity of heat dQ determined is delivered to means 56 for determining the amount of fuel burned corresponding.
- the means 56 are able to determine this amount of fuel by dividing the amount of heat dQ by the value of the mass energy content of the fuel used in the engine, or PCI for lower heat potential (in J / kg).
- the value PCI is for example mapped in the means 56.
- the device according to the invention also comprises means 58 for determining the temperature T nb of the admitted unburnt mixture at a moment after the start of the combustion of the mixture in the cylinder.
- This temperature T nb of the admitted unburned mixture is calculated by making a hypothesis of isentropic compression of the admitted unburned mixture since a moment before the start of the combustion.
- This temperature T n b of the unburned admitted mixture is then used for the determination of the theoretical adiabatic temperature T ad of the flame front propagating inside the combustion chamber of the cylinder, as will be explained in more detail by the after.
- the means 58 for determining the temperature T nb comprise means 60 for determining the number of moles n of the admitted mixture present in the combustion chamber of the cylinder before the start of the combustion as a function of the air flow DA acquired, the rate TEGR of recycled exhaust gas at the engine inlet and the total amount of fuel injected MCI into the cylinder.
- the number n of moles is then delivered to means 62 for determining the temperature T ⁇ b of the admitted mixture at a predetermined time before the start of the combustion in the cylinder, for example corresponding to a crankshaft angle ⁇ ° included in the range corners crankshaft [-60 °; -20 °] before the top dead center (TDC) of the cylinder cycle.
- the detection of the instant of the start of combustion of the mixture is carried out by means 64 for comparing the instantaneous quantity dQ of heat released by the combustion of the admitted mixture, determined by the means 54, at a predetermined threshold.
- the means 62 then determine the temperature T ⁇ b considering the mixture admitted as a perfect gas according to the relation:
- V 0 and P 0 are the volume of the combustion chamber and the pressure therein at the predetermined time before the start of combustion of the admitted mixture, and R is the constant of the perfect gases .
- V 0 and P 0 are for example stored in the means 62 following the last acquisition of the pressure P in the cylinder for the crankshaft angle ⁇ ° included in the range of crankshaft angles [-60 ° ; - 20 °] before the top dead center of the cylinder cycle, the crankshaft angle ⁇ ° corresponding to the volume V 0 of the combustion chamber of the cylinder.
- the temperature T b and the pressure P 0 before the start of combustion are supplied as reference temperature and pressure means 66 for determining the temperature T nb of the mixture taken not burned during the combustion, that is to say during the propagation of the flame front in the combustion chamber of the cylinder.
- the means 66 determine the latter from a thermodynamic model of isentropic compression of the compression phase of the cylinder cycle according to the relation:
- the means 66 determine the temperature T n b continuously for a period of time corresponding to the combustion of the mixture admitted into the cylinder. This period corresponds for example to the range of crank angle [0; 120 °] after TDC if the engine load is partial or the range [-15; 120 °] with respect to the TDC if the engine load is substantially maximum.
- the determined temperature T n b is delivered to means 68 for determining the adiabatic temperature T ad of the flame front during the combustion of the mixture admitted into the combustion chamber of the cylinder.
- Hinitial (P, T nb , XO 2 ) final H (P, T ad 5 XO 2 ) (4)
- Hjnitiai is the enthalpy of the admitted mixture before the combustion start time thereof and Hfj na ⁇ * enthalpy are admitted burnt gases from the combustion of the mixture taken in by the flame front.
- this enthalpy conservation model is approximated by a polynomial model, the temperature T of the adiabatic flame front being determined by the means 68 according to the relationship:
- T ad c 1 + c 2 xT nb + c 3 xXO 2 (5)
- C 1 , C 2 and C 3 are predetermined coefficients.
- the correlation between the adiabatic temperature determined according to equation (5) and an adiabatic temperature determined from a complex model thereof based on equation (4) has a correlation coefficient R 2 substantially equal to 99.43. %.
- the means 68 also receive as input the pressure P measured in the combustion chamber of the cylinder and determine the adiabatic temperature of the flame front according to the relation:
- T ad c 1 + c 2 xT nb + c 3 x XO 2 + c 4 xP (6)
- ci, C 2 , C 3 , C 4 are predetermined coefficients.
- the introduction of the pressure P into the cylinder in relation (6) makes it possible to obtain a coefficient R 2 substantially equal to 99.5%.
- the means 68 also receive as input the pressure P measured in the combustion chamber of the cylinder and determine the adiabatic temperature of the flame front according to the relation:
- the means 68 determine the ad adabatic temperature of the flame front in a simple and inexpensive way in computing time, while determining it reliably.
- the device according to the invention comprises means 70 for calculating the instantaneous quantity of NOx emitted by the combustion of the mixture admitted into the cylinder as a function of the pressure P in it, of the adiabatic temperature T ad of the front of the cylinder. flame, the oxygen mass fraction XO 2 of the mixture and the instant mass MCB of burned fuel. This calculation is made from a chemical model of NOx production in the predetermined cylinder, for example according to the relation:
- NOx is the instantaneous amount of NOx emitted from the combustion of the admixture admitted into the cylinder in grams per kilogram of fuel injected into the cylinder per crankshaft degree
- b, c and d are predetermined parameters.
- the instantaneous quantity NO x of NOx produced during the combustion of the mixture in the cylinder is therefore substantially equal to that emitted by the engine 10.
- FIG. 3 is a flow diagram of the operation of the device for determining the amount of NOx emitted by the engine just described.
- the operation consists of 50 to select the reference i of the cylinder in which the next combustion mixture takes place. Then, at 52, the total fuel mass MCI, the air flow DA and the EGR rate injected TEGR in this cylinder i are determined.
- a next step 54 then consists in determining, as a function of the values determined at 52, the richness of the admitted mixture and then the oxygen mass fraction XO 2 of the mixture admitted into the cylinder i.
- the operation of the device according to the invention then consists in determining the instantaneous quantity of heat released by the combustion of the mixture admitted into cylinder i according to equation (1) and comparing it, at 58, with the value detection threshold of the instant of start of combustion of the mixture.
- process 58 loops on step 56.
- a subsequent step 60 of the operation is a temperature determination step
- Step 60 is then followed by a step 62 of determining the temperature T nb of the admitted unburned mixture at a moment after the start of combustion according to equation (3).
- Step 62 is continued by determining the adiabatic temperature T ac of the flame front according to relation (5) as a function of the temperature T nb of the admitted unburned mixture, of the oxygen mass fraction XO 2 of the mixture, and the pressure P of the cylinder i if the relation (6) or the relation (7) is used.
- the instantaneous mass MCB of fuel burned in the cylinder i is then determined at 64 as a function of the amount of heat determined previously, as described above.
- step 66 determining the instantaneous quantity QN OX of NOx emitted by the combustion of the mixture in the cylinder i according to relation (8).
- a test is performed at 68 to know if the combustion of the mixture in the cylinder i is complete, for example by testing whether the instantaneous quantity of heat dQ determined is less than a second predetermined threshold value.
- step 68 then loops on step 50 for the choice of a new cylinder i. If the result of this test is negative, a new instantaneous quantity of heat dQ is determined at 70.
- Step 70 then loops on step 62 for the determination of a new instantaneous quantity QN OX of NOx emitted by the combustion of the mixture in the cylinder i at a moment following the combustion, by the implementation of the steps 62 , 64 and 66.
- the device of the invention implements a determination algorithm requiring a small sum of calculations, while allowing the determination of the amount of NOx emitted by the engine in real time and instantaneously, that is to say including at each moment of the combustion phase of the cylinder.
- the device comprises a chain for acquiring the pressure in a single cylinder of the engine and the device is able to determine the quantity of NOx emitted by the combustion of the mixture admitted into this cylinder and to multiply the amount of NOx determined by the number of cylinders of the engine to obtain the total amount of NOx emitted by the engine.
- the device comprises a pressure acquisition chain in any number of engine cylinders, and is capable of determining the quantity of NOx emitted by these systems and multiplying this
- N last by -, where N is the number of cylinders of the motor, in order to obtain the
- FIG. 4 illustrates the accuracy of the determination of the amount of NOx emitted by the engine implemented by the device according to the invention.
- the amount of NOx determined using a model. complex physical production of NOx, and the ordinate corresponding amounts obtained by the device according to the invention.
- the device according to the invention thus makes it possible in a simple way to obtain an important precision for a large operating range of the engine.
- a first system is a system for diagnosing the malfunction of the engine 10. In fact, if the emission of NOx is abnormally high, a malfunction of the engine 10 can be diagnosed.
- the diagnostic system comprises for this purpose a device according to the invention that delivers the instantaneous amount of NOx emitted by the engine to means for comparing it to a predetermined threshold.
- Means for triggering an alarm receive the results of this comparison and trigger an alarm, for example the activation of an indicator light arranged on the dashboard of the vehicle, when the amount of NOx determined is greater than this threshold.
- a system controlling the operation of the diesel engine 10 for controlling the storage and retrieval states of the pollution control means 24 based on the amount of NOx emitted by the engine.
- Such a system comprises for example a device for determining the amount of NOx emitted by the engine according to the invention delivering this amount to means for calculating the amount of NOx stored in the means 24 of depollution according to it .
- the quantity of stored NOx determined is then delivered to means for comparing it with first and second predetermined thresholds.
- Means for triggering the regeneration of the depollution means 24 receive the result of this comparison and trigger the operation of the engine 10 in the regeneration mode of the depollution means 24 when the amount of NOx stored therein is greater than first threshold, and disable such a mode of operation of the engine 10 when the amount of NOx stored is less than the second threshold.
- the regeneration of the depollution means is then triggered according to information that remains relevant throughout the life of the vehicle.
- the operation of the engine associated with the control of the means 24 of depollution is then optimized.
- a system for controlling the operation of the motor 10 comprising the device according to the invention and means for adjusting the operation of the means 12 for supplying the motor 10.
- the adjustment means are adapted to adjust the operation of the power supply means 12 as a function of the amount of NOx emitted determined by the device in order to correct drifts in the operation thereof.
- the means for adjusting the feed means 12 are adapted to adjust the phasing and / or the quantities of fuel injected into the cylinders to minimize the emission of NOx by the engine 10.
- the adjustment means may also be adapted to regulate the operation of the recirculation loop 14 as a function of the amount of NOx emitted by the engine 10 to correct drifts in the operation of the supply means 12 and / or the recirculation loop 14 so as to also to minimize NOx emission.
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)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas After Treatment (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0412597A FR2878569B1 (fr) | 2004-11-26 | 2004-11-26 | Dispositif et procede de determination de la quantite de nox emise par un moteur diesel de vehicule automobile et systemes de diagnostic et de controle de fonctionnement du moteur comprenant un tel dispositif |
| PCT/FR2005/002941 WO2006056702A1 (fr) | 2004-11-26 | 2005-11-25 | Dispositif et procede de determination de la quantite de nox emise par un moteur diesel de vehicule automobile et systemes de diagnostic et de controle du fonctionnement du moteur comprenant un tel dispositif. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1815118A1 true EP1815118A1 (fr) | 2007-08-08 |
| EP1815118B1 EP1815118B1 (fr) | 2008-04-02 |
Family
ID=34951987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05822931A Expired - Lifetime EP1815118B1 (fr) | 2004-11-26 | 2005-11-25 | Dispositif et procede de determination de la quantite de nox emise par un moteur diesel de vehicule automobile et systemes de diagnostic et de controle du fonctionnement du moteur comprenant un tel dispositif. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20080010973A1 (fr) |
| EP (1) | EP1815118B1 (fr) |
| JP (1) | JP2008522071A (fr) |
| AT (1) | ATE391231T1 (fr) |
| DE (1) | DE602005005849T2 (fr) |
| ES (1) | ES2303699T3 (fr) |
| FR (1) | FR2878569B1 (fr) |
| WO (1) | WO2006056702A1 (fr) |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006053805B4 (de) * | 2006-11-15 | 2020-12-24 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine zur Ermittlung einer in einem Brennraum befindlichen Füllung |
| SE534864C2 (sv) * | 2007-03-15 | 2012-01-24 | Scania Cv Ab | Arrangemang och förfarande hos en dieselmotor |
| DE102007048650B4 (de) * | 2007-10-10 | 2011-06-09 | Audi Ag | Verfahren und Vorrichtung zur Optimierung der Verbrennung von Dieselkraftstoffen mit unterschiedlichen Cetanzahlen in einer Diesel-Brennkraftmaschine |
| DE102008004221A1 (de) * | 2008-01-14 | 2009-07-16 | Robert Bosch Gmbh | Bestimmung einer während des Betriebs einer Brennkraftmaschine auftretenden NOx- und Rußemission |
| US20090183551A1 (en) * | 2008-01-18 | 2009-07-23 | Gerald Thomas Fattic | NOx mass estimating unit and method |
| US7779679B2 (en) * | 2008-04-14 | 2010-08-24 | Gm Global Technology Operations, Inc. | Fuel system diagnostics by analyzing cylinder pressure signal |
| JP2009264176A (ja) * | 2008-04-23 | 2009-11-12 | Yanmar Co Ltd | ガスエンジン制御装置 |
| FR2933736B1 (fr) * | 2008-07-10 | 2012-07-20 | Peugeot Citroen Automobiles Sa | Procede de controle instantane des emissions d'oxydes d'azote |
| US8301356B2 (en) * | 2008-10-06 | 2012-10-30 | GM Global Technology Operations LLC | Engine out NOx virtual sensor using cylinder pressure sensor |
| DE102009000329A1 (de) * | 2008-10-13 | 2010-04-15 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben eines Verbrennungsmotors |
| US8364420B2 (en) * | 2009-03-02 | 2013-01-29 | GM Global Technology Operations LLC | Combustion temperature estimation system and method for an engine management system |
| DE102009021793B4 (de) | 2009-05-18 | 2020-08-06 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zum Bestimmen der Stickoxidemission im Brennraum eines Dieselmotors |
| DE102009029257B3 (de) * | 2009-09-08 | 2010-10-28 | Ford Global Technologies, LLC, Dearborn | Identifikation einer Luft- und/oder Kraftstoffdosierungsabweichung |
| ES2427763T3 (es) * | 2009-12-23 | 2013-10-31 | Fpt Motorenforschung Ag | Método y dispositivo para controlar un sistema RGE en un motor de combustión |
| CN102192019A (zh) * | 2010-03-02 | 2011-09-21 | 通用汽车环球科技运作公司 | 用于发动机管理系统的燃烧温度估计系统和方法 |
| US20130160521A1 (en) * | 2010-06-30 | 2013-06-27 | International Engine Intellectual Property Company, Llc | System and method of generating selective catalyst reduction dosing estimate for a diesel engine |
| JP5644220B2 (ja) * | 2010-07-13 | 2014-12-24 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
| DE102010046491B4 (de) | 2010-09-24 | 2022-05-05 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zum Bestimmen einer Schadstoffemission im Brennraum eines Dieselmotors |
| EP2439386A1 (fr) * | 2010-10-06 | 2012-04-11 | Nicholas Michael Zayan | Détection de glissement d'ammoniac SCR |
| KR101234638B1 (ko) * | 2010-11-18 | 2013-02-19 | 현대자동차주식회사 | 질소산화물의 양을 예측하는 방법 및 이를 이용한 배기 장치 |
| KR101234637B1 (ko) * | 2010-11-18 | 2013-02-19 | 현대자동차주식회사 | 질소산화물의 양을 예측하는 방법 및 이를 이용한 배기 장치 |
| DE102011017036B4 (de) * | 2011-04-14 | 2015-02-19 | Mtu Friedrichshafen Gmbh | Verfahren zur Regelung der NOx-Konzentration im Abgas einer Brennkraftmaschine |
| SG2014006506A (en) * | 2011-08-16 | 2014-05-29 | Transocean Sedco Forex Ventures Ltd | Measurement of diesel engine emissions |
| US9677493B2 (en) | 2011-09-19 | 2017-06-13 | Honeywell Spol, S.R.O. | Coordinated engine and emissions control system |
| US9650934B2 (en) | 2011-11-04 | 2017-05-16 | Honeywell spol.s.r.o. | Engine and aftertreatment optimization system |
| US20130111905A1 (en) | 2011-11-04 | 2013-05-09 | Honeywell Spol. S.R.O. | Integrated optimization and control of an engine and aftertreatment system |
| FR2982824B1 (fr) * | 2011-11-17 | 2013-11-22 | IFP Energies Nouvelles | Procede de commande en regime transitoire d'un systeme de propulsion hybride d'un vehicule |
| FR2999648B1 (fr) * | 2012-12-18 | 2017-12-01 | Continental Automotive France | Procede de determination de la concentration en oxydes d'azote a la sortie d'un moteur a combustion interne |
| DE102014210841A1 (de) * | 2014-06-06 | 2015-12-17 | Robert Bosch Gmbh | Verfahren zum Ermitteln einer Stickoxid-Emission beim Betrieb einer Brennkraftmaschine |
| US9863346B2 (en) | 2014-10-03 | 2018-01-09 | GM Global Technology Operations LLC | Method and apparatus for estimating nitrogen oxides out of an engine |
| EP3051367B1 (fr) | 2015-01-28 | 2020-11-25 | Honeywell spol s.r.o. | Approche et système de manipulation de contraintes pour des perturbations mesurées avec une prévisualisation incertaine |
| EP3056706A1 (fr) | 2015-02-16 | 2016-08-17 | Honeywell International Inc. | Approche de modélisation de système de post-traitement et d'identification de modèle |
| DE102015206135A1 (de) * | 2015-04-07 | 2016-10-13 | Robert Bosch Gmbh | Ermitteln von Stickoxiden im Abgas einer Brennkraftmaschine |
| EP3091212A1 (fr) | 2015-05-06 | 2016-11-09 | Honeywell International Inc. | Approche d'identification pour modèles de valeurs moyennes de moteurs à combustion interne |
| EP3125052B1 (fr) | 2015-07-31 | 2020-09-02 | Garrett Transportation I Inc. | Résolveur de programme quadratique pour mpc utilisant une commande variable |
| US10272779B2 (en) | 2015-08-05 | 2019-04-30 | Garrett Transportation I Inc. | System and approach for dynamic vehicle speed optimization |
| US10415492B2 (en) * | 2016-01-29 | 2019-09-17 | Garrett Transportation I Inc. | Engine system with inferential sensor |
| US10036338B2 (en) | 2016-04-26 | 2018-07-31 | Honeywell International Inc. | Condition-based powertrain control system |
| US10728249B2 (en) | 2016-04-26 | 2020-07-28 | Garrett Transporation I Inc. | Approach for securing a vehicle access port |
| US10124750B2 (en) | 2016-04-26 | 2018-11-13 | Honeywell International Inc. | Vehicle security module system |
| EP3548729B1 (fr) | 2016-11-29 | 2023-02-22 | Garrett Transportation I Inc. | Capteur de flux inférentiel |
| US11057213B2 (en) | 2017-10-13 | 2021-07-06 | Garrett Transportation I, Inc. | Authentication system for electronic control unit on a bus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2638340B2 (ja) * | 1991-06-05 | 1997-08-06 | いすゞ自動車株式会社 | NOx低減装置 |
| JP3693855B2 (ja) * | 1999-06-07 | 2005-09-14 | 三菱電機株式会社 | 内燃機関の空燃比制御装置 |
| JP4393726B2 (ja) * | 2001-04-09 | 2010-01-06 | 本田技研工業株式会社 | 内燃機関の排気還流制御装置 |
| US6581571B2 (en) * | 2001-06-12 | 2003-06-24 | Deere & Company | Engine control to reduce emissions variability |
| JP4706134B2 (ja) * | 2001-06-15 | 2011-06-22 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
| JP3918706B2 (ja) * | 2002-10-04 | 2007-05-23 | 三菱自動車工業株式会社 | 内燃機関の触媒劣化検出装置 |
| JP4121902B2 (ja) * | 2003-06-16 | 2008-07-23 | 本田技研工業株式会社 | 圧縮着火式内燃機関の制御装置 |
-
2004
- 2004-11-26 FR FR0412597A patent/FR2878569B1/fr not_active Expired - Fee Related
-
2005
- 2005-11-25 EP EP05822931A patent/EP1815118B1/fr not_active Expired - Lifetime
- 2005-11-25 JP JP2007542050A patent/JP2008522071A/ja not_active Withdrawn
- 2005-11-25 DE DE602005005849T patent/DE602005005849T2/de not_active Expired - Lifetime
- 2005-11-25 US US11/720,303 patent/US20080010973A1/en not_active Abandoned
- 2005-11-25 ES ES05822931T patent/ES2303699T3/es not_active Expired - Lifetime
- 2005-11-25 WO PCT/FR2005/002941 patent/WO2006056702A1/fr not_active Ceased
- 2005-11-25 AT AT05822931T patent/ATE391231T1/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006056702A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2303699T3 (es) | 2008-08-16 |
| DE602005005849T2 (de) | 2009-04-09 |
| EP1815118B1 (fr) | 2008-04-02 |
| JP2008522071A (ja) | 2008-06-26 |
| DE602005005849D1 (de) | 2008-05-15 |
| FR2878569B1 (fr) | 2007-03-02 |
| FR2878569A1 (fr) | 2006-06-02 |
| US20080010973A1 (en) | 2008-01-17 |
| WO2006056702A1 (fr) | 2006-06-01 |
| ATE391231T1 (de) | 2008-04-15 |
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