EP3004608A1 - Method for estimating the pollutant emissions of an internal combustion engine and related method for controlling the engine - Google Patents
Method for estimating the pollutant emissions of an internal combustion engine and related method for controlling the engineInfo
- Publication number
- EP3004608A1 EP3004608A1 EP14731713.5A EP14731713A EP3004608A1 EP 3004608 A1 EP3004608 A1 EP 3004608A1 EP 14731713 A EP14731713 A EP 14731713A EP 3004608 A1 EP3004608 A1 EP 3004608A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- engine
- value
- function
- pollutant
- richness
- 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
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 59
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 59
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000446 fuel Substances 0.000 claims abstract description 23
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002826 coolant Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 45
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 46
- 238000013507 mapping Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000007726 management method Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000012937 correction Methods 0.000 description 7
- 238000010926 purge Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 239000003502 gasoline Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000013626 chemical specie Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- 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
- F02D41/1459—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 a hydrocarbon content or concentration
-
- 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
- F02D41/1452—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 a COx content or concentration
- F02D41/1453—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 a COx content or concentration the characteristics being a CO content or concentration
-
- 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
-
- 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
- F02D2200/021—Engine temperature
-
- 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
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
-
- 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
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
-
- 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
- F02D2200/0614—Actual fuel mass or fuel injection amount
- F02D2200/0616—Actual fuel mass or fuel injection amount determined by estimation
-
- 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
- F02D2200/101—Engine speed
-
- 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
- F02D2250/12—Timing of calculation, i.e. specific timing aspects when calculation or updating of engine parameter is performed
Definitions
- the object of the invention is to control the polluting emissions of an internal combustion engine.
- the level of pollutant emissions of the engine depends in particular on the combustion conditions of the combustion mixture in the engine cylinders. It therefore depends on the composition of the mixture, but also on the temperature and pressure conditions at which the combustion takes place in the cylinders.
- the aim of the invention is to propose methods for evaluating the emissions of one or more polluting species, which use sensors and estimators other than pressure sensors in the cylinders, the sensors used being generally already present on the engine for other engine control purposes, for example to optimize the fuel consumption of the engine.
- the object of the invention is also to propose inexpensive estimation methods in computing capacities, and methods which require, in order to be calibrated, a reduced number of bench tests.
- the aim of the invention is also to allow a reduction of the pollutant emissions of the engine, by introducing a consideration of the estimated values of pollutant emissions, when driving the engine in order to obtain the desired engine torque by the driver of the vehicle.
- the invention proposes an internal combustion engine, the engine comprising a pollutant emission estimating device.
- the engine has no pressure sensor in any cylinder of the engine, or at least the pollutant estimator does not use pressure values obtained by sensor measurement in one or more cylinders of the engine.
- the estimation device is configured to calculate a first pollutant emission value by taking into account the rotational speed of the engine, a measured temperature of coolant circulating in the engine, a fuel consumption of the engine, an estimated indicative value.
- the richness of the gases entering the engine cylinders, and a level of advance ignition engine can be calculated in different ways according to the embodiments.
- the richness can be calculated from a flow of fresh air entering the engine, and the fuel consumption of the engine.
- the fresh air flow can itself be measured by a flow meter, or can be estimated by means of a flow map which is a function, in particular, of the engine rotation speed and a gas pressure measured in the engine. intake manifold.
- the value extracted from the flow map can be multip tied by a measured pressure in the engine intake manifold, and can be divided by a temperature measured in the engine intake manifold.
- the cartography can also take into account instructions for controlling intake valves and gas exhaust from the engine cylinders.
- the richness of the gases entering the cylinders of the engine can be estimated by taking into account the mass actually trapped in the combustion chamber of the cylinders. It can then typically be calculated by reading a first value in a fill map, and a second value in a trapping map, and multiplying these two values by a constant coefficient and by a measured gas pressure in the coilector. engine intake and dividing the result by a measured gas temperature in the engine intake manifold.
- the filling mapping and trapping mapping can take into account, in addition to the engine speed and the pressure of the engines. gas in the intake manifold, instructions for controlling intake valves and exhaust gases from the engine cylinders.
- the estimation device is configured to calculate a first emission value po lluantes as the product of a first function affine of fuel consumption, a second function affine the advance to ignition, a third function refines the coolant temperature, and a negative exponential term a power of the gas richness entering the cylinders.
- the first emission value is used to estimate the emissions of nitrogen oxides from the engine.
- negative exponential term we mean a term where the value under the exponential is of negative sign.
- the negative term under the exponential function is proportional to a power function of a difference between the richness of gas entering the engine and a threshold richness.
- the power function is a power equal to two.
- the estimation device is configured to calculate a second emission value, as a product of an affine function of the coolant temperature by the fuel consumption. of the engine, and by a third function refines the richness of the gases entering the cylinders of the engine.
- the second emission value is used to estimate the carbon monoxide emissions of the engine.
- the estimation device can be configured to replace the third affine function of the richness of the gases entering the cylinders of the engine by a constant value.
- the estimating device is furthermore connected to a pressure sensor in an engine intake manifold and to a gas temperature sensor in the commutator. intake of the engine, and a means for estimating the rotational speed of the engine and a means for estimating the air flow entering the engine.
- the pollutant estimating device is then configured to calculate a third pollutant value, such as a product of an affine function of the ignition timing, by an affine function of the coolant temperature.
- the third emission value is used to estimate emissions of incompletely burned hydrocarbons.
- the motor may further comprise a regulator configured to take into account a signal of an accelerator pedal.
- the controller is configured to develop from this signal a position setpoint of an actuator of the engine, by weighting the position setpoint with a value mapped according to at least one polluting emission value calculated by the estimator of the engine. polluting emissions.
- the engine comprises a first mapping giving a first multiplier coefficient according to one or more pollutant values calculated by the pollutant estimator, and comprises a second mapping making it possible to read a second multiplying coefficient according to the pedal signal and the motor rotation speed.
- the regulator is then configured to applying the product of the first and second coefficients to a setpoint variance variable, the setpoint difference variable translating a difference between a setpoint value calculated as a function of the pedal signal, and a measured variable or a derived variable measurements- on the engine.
- the invention also proposes a hybrid vehicle comprising an electric machine and comprising a motor as described above.
- the vehicle may comprise an energy management module configured to deliver an electric torque setpoint to be supplied by the electric machine and to deliver a desired value of thermal torque to be supplied by the internal combustion engine.
- the vehicle may furthermore comprise a moderator module configured to weight the desired value of thermal torque as a function of an estimated value of pollutant emissions, and to deliver a setpoint thermal torque for developing a position setpoint of an actuator of the internal combustion engine.
- the moderator module also returns the target thermal torque to the energy management module, which accordingly adapts the electrical torque setpoint.
- the invention also proposes an engine equipped with a polluting species trap (s) and an estimation device configured to calculate an instantaneous value of polluting emissions corresponding to the species to be trapped.
- the engine may include a trap monitor configured to determine the amount of pollutant species accumulated in the trap by integrating a value estimated by the estimator.
- the pollutant species trap may for example be a nitrogen oxide trap.
- the trap monitor is configured to trigger a purge of the trap when the amount of polluting species in the trap reaches or exceeds a threshold, which may be a function of the driving conditions of the vehicle. Purge means elimination by oxidation or reduction of polluting species. In the case of the nitrogen oxide trap, the purge can be done by modifying the operating parameters of the engine so as to heat the trap and to send reducing chemical species. These purge methods are known, for example to reduce nitrogen oxides to nitrogen.
- the invention also applies to a method for managing an internal combustion engine, in which at least one emission value of a polluting species is estimated using engine parameters other than the gas pressure in the engine.
- the engine cylinders at least one polluting emission value being calculated as the product of a first function affine of the fuel consumption, a second function affine of the ignition advance, a third function refining of the coolant temperature, and a negative exponential term of a power of the richness of the combustion mixture in the engine cylinders.
- FIG. 1 is a schematic representation of an internal combustion engine equipped with a pollutant emission estimator according to the invention
- FIG. 2 is a schematic representation of an internal combustion engine equipped with a trap.
- IEC 60050 International Electrotechnical Vocabulary - Details for IEV number 845-02-08 Superposition of a nitric oxide system and a pollutant emission estimator according to the invention
- FIG. 3 is a diagrammatic representation of a hybrid thermal - electric motorization system, provided with a device for estimating pollutant emissions. pollutant emissions according to the invention.
- an internal combustion engine for example a gasoline engine, comprises combustion cylinders 6, of which there are four, and comprises an air supply circuit 30 extending from one engine to the other.
- the air enters through the fresh air inlet 3, passes through an air filter 4, which may or may not have a flow meter, then passes through a compressor 5a of a turbocharger 5, for arrive in an intake manifold 32 from which it can be admitted into the cylinders 6 of the engine 1.
- the gas circuit 30 continues downstream of the cylinders 6 by an exhaust manifold 39 which receives the flue gases from the cylinders 6. The flue gases then pass through a turbine 5b of the turbocharger 5, and then eventually pass through a deposition system. 33, to be returned to the atmosphere via the exhaust outlet 3 1.
- the arrival of gasoline to each cylinder 6 from the fuel tank 19 of the vehicle is controlled by an engine control unit 8 which determines the quantity of fuel Q ca rb admitted in each cylinder at each "stroke" engine, that is to say for each engine cycle of the cylinder.
- the engine control unit 8 also determines an ignition advance ⁇ which is the angle that remains to be traveled at the crankshaft before reaching the top dead center, at the moment when a spark is triggered in the corresponding cylinder.
- the pollutant estimator 10 is an electronic control unit further receiving a motor "water temperature” value T, measured by a sensor 34 measuring the temperature of the coolant passing through the engine.
- the estimator 10 also receives a value of engine speed N, which can for example be expressed in revolutions per minute, and which is measured by a tachometer 35, placed for example facing a solid toothed wheel of the crankshaft of the engine 1 .
- the pollutant estimator 10 also receives a richness value R of the oxidant mixture entering the engine cylinders.
- This wealth value can be delivered by a wealth estimator 2.
- the estimator 2 oxidizer mixture richness may be used in particular Q fuel flow because b entering the engine cylinders at each stroke, and the air flow Q i r entering the circuit gas supply 30.
- the estimator 2 may, according to other embodiments, perform the estimation of wealth from other parameters, as detailed below.
- the air flow rate Q a i r can be measured by a flowmeter, for example placed at the level of the air filter 4, or can be estimated for example by means of a cartography making it possible to determine the air flow rate by depending on the engine rotation speed and the gas pressure in the intake manifold 32.
- the intake manifold 32 may be provided with a collector pressure sensor 9 and a gas temperature sensor 11 in the intake manifold.
- the pollutant estimator may also be connected so as to receive, for the purpose of calculating some of the pollutant emissions, the air flow rate. a i r, the pressure P i co gas into the intake manifold, and the temperature T i co gas into the intake manifold.
- the value Q a i r can be delivered, instead of a flowmeter at the level of the filter 4, by an estimator of the incoming air flow, using, for example, the cartography mentioned above, as a function of the rotational speed of the engine and the pressure of the gases in the intake manifold 3.
- the pollutant estimator 10 delivers one or more values each representing a quantity of polluting species emitted per unit of time.
- FIG. 1 shows the transmission of a single pollutant emission value "Pollut", which is sent as an input value of a mapping 13.
- the Pollut value can represent a flow rate of nitrogen oxides " ⁇ ", a flow rate of carbon oxides "CO”, or a flow rate of unburned hydrocarbons "HC”.
- the estimator 10 can also simultaneously deliver several values corresponding to several polluting emissions. This or these pollutant emission values can be used to adapt the regulation of the engine 1, as illustrated in FIG.
- the pollutant emission value Pollut may for example correspond to a flow of oxides of nitrogen
- the Pollut emission level is used as the input value of the map 13, in which a multiplying coefficient Kpoi i is read, which is then sent to a multiplier 16.
- the multiplier 16 receives on another input a second coefficient K N c which is read in a second map 14.
- the second map 14 has at least two inputs, whose rotation speed N of the engine 1 is a reference torque C, which is determined for example from the signal of an accelerator pedal 12.
- the setpoint torque C is also used by a calculator 1 5 of reference supercharging pressure, which is configured to calculate a reference supercharging pressure P cons ruling in the co llecher inlet 32 in order to obtain the engine 1 C requested torque.
- the map 14 can use as a second input value another value related to the torque, for example the reference supercharging pressure P CO ns.
- the multip licateur 16 delivers a control coefficient K regu i which is used by a controller 8.
- the controller 1 1 8 receives as input a ⁇ difference between the pressure P i co gas measured in the co llecher inlet 32, and the corresponding setpoint pressure P CO ns delivered by the calculator 15 of the setpoint pressure switch.
- the regulator 18 converts this difference ⁇ into a correction value ⁇ sent to a conversion unit 7.
- the regulator 18 may be of the proportional type, but may also be of proportional integral, proportional derivative or other type of regulator, of PID type.
- the conversion unit 7 is configured to deliver a position command "u" for adapting the geometry of the turbine 5b in order to modify the flow rate passing through the turbine.
- the value "u” may for example correspond to the blade positions of a variable geometry turbine 5b.
- the conversion unit 7 uses of course other values than the correction value ⁇ to calculate the position "u" of the actuator of the turbine 5b. These values correspond to calculation methods known from the literature and may in particular comprise a gas temperature measured upstream of the turbine, a flow of gas passing through the turbine and a gas pressure downstream of the turbine.
- the internal combustion engine 1 may comprise a pollutant estimator 10, the Pollut estimation of which is taken into account for the calculation of a regulation coefficient K r allowing the calculation of a "u" position d an actuator for modifying the combustion conditions of the engine 1, and in particular making it possible to evaluate the pressures established inside the gas circuit 30.
- the estimator 10 calculates a production of nitrogen oxide - by cylinder stroke - using the richness R, the fuel flow Q ca rb, the ignition advance ⁇ , the water temperature T and engine speed N, according to equation (1):
- NOx mgc K ⁇ Q carb + Q 0 ⁇ + ⁇ 0 ⁇ + T 0 ) expf - -t ⁇ ° Î
- ⁇ ignition advance (crankshaft position in degrees)
- T engine coolant temperature (degrees Celsius)
- Qo values (po, T 0 , Ro, s) are engine-specific calibration parameters, which can be determined by bench tests for a particular engine model.
- NOX mgc is expressed for a crankshaft revolution. If we want to convert mass production per unit of time, we can use the conversion formula (valid for a four-stroke and four-cylinder engine):
- N being the rotational speed of the engine in revolutions / minute.
- the pollutant estimator calculates the carbon monoxide emissions CO mgc , according to a formula of the type:
- the values H, R ls M are engine-specific calibration parameters, which can be determined by bench tests for a particular engine model.
- the To value can be the same as above for the evaluation of the production of nitrogen oxides.
- N being the rotational speed of the engine in revolutions / minute.
- the emission estimator Pollutants calculates unburned hydrocarbon emissions C mgc , using a formula such as:
- T engine coolant temperature (degrees Celsius)
- N the rotation speed of the engine in revolutions / minute
- the X value is a reduced variable defined as follows:
- the values L, T 0 (pi, d, e, r, p, u, v are specific calibration parameters to the motor which can be determined by bench tests for a mo faithful particular motor.
- the value T 0 may to be the same as before.
- equations (1), (3), (4) and (6) can be replaced by equivalent equations by putting in factor differently the calibration constants.
- Equations (1), (3), (4) can be replaced by equivalent equations, where for example the fuel flow is expressed in mg / s instead of expressed in mg / stroke.
- the terms relating to the fuel flow Q carb and Q 0 are then to be taken into account divided by the rotation speed N, and the calibration constants K, H, M are to be adapted, for example by dividing them by 30.
- the air richness R of the oxidant mixture in the cylinders can be evaluated in different ways. According to a first embodiment, it can be measured by a probe of the "lambda probe" type.
- the lambda probe is generally placed on the gas circuit 30, downstream of the cylinders and upstream of the possible pollution control system 33. It makes it possible to determine the oxygen richness of the exhaust gases and to deduce the composition of the gas entering the cylinders.
- the richness R of the gases in the cylinders is calculated by taking into account the flow of air entering and the flow of fuel entering the cylinders. According to the simplest model, one can calculate the richness R of the gases enclosed in the cylinders at the moment of the combustion by
- PC O fuel comburivore power
- PC O 14.7 for gasoline for example.
- the pollutant emission estimator 10 may, for example, deliver two separate NOX mg / s and CO mg / s values giving instantaneous productions of these two pollutants. These values (or their values converted into mass / second) can be sent to two mappings (not shown in FIG. 1) making it possible to read two correction coefficients which will multiply the coefficient K C delivered by the mapping 14 according to the operating point. of the motor.
- a third correction may be added, depending on the amount of unburned hydrocarbons, also calculated by the pollutant estimator, and may be read in a third reading (not shown). ) to extract a dedicated correction coefficient.
- FIG. 2 illustrates another application of the methods for calculating pollutant emissions according to the invention.
- FIG. 2 shows a motor equipped with the same sensors as that of FIG. 1, the same sensors being designated by the same references.
- the air filter 4 is not equipped with a flow meter.
- the incoming airflow Q a i r and the richness R must therefore be evaluated from the data of the other sensors.
- an air mass estimator 40 is used passing through the intake valves of the cylinders.
- the estimator comprises a mapping 41 of filling, which gives a filling coefficient ⁇ ⁇ as a function of the pressure
- VVTa and VVTe for controlling respectively the intake valves and the cylinder exhaust valves.
- These instructions may correspond for example to a position at a given moment, or to a phase shift with respect to the passage of the piston of the cylinder by its top dead center.
- the estimator 40 may further comprise a map 42 which gives a coefficient ⁇ , of "trapping" according to the same four parameters.
- the estimator 40 reads in the map 41:
- these estimates are obtained by means of a divider 43, sending the ratio P C o 1 / T co i to a multiplier 44 receiving on its other input the input coefficient of filling ⁇ ⁇ .
- the result Q a ir mg c is then sent, if necessary, to the estimator 1 0 pollutant emissions, and is sent to another multiplier 45 receiving on its other input the trapping coefficient ⁇ .
- the trapped Qair result is sent to the wealth estimator 2 which then estimates the richness R for example according to the formula:
- PCO comburivorous fuel (eg 14.7 for gasoline)
- the engine 1 of Figure 2 equipped with the estimator 1 0 of pollutant emissions, using the same types of equations as those mentioned above to estimate the level of production of one or more polluting species.
- the engine 1 is equipped with a trap 33 of nitrogen oxides and a trap monitor 20 configured to trigger "purge" phases of the trap, during which the operating conditions of the engine are such that the oxides of nitrogen accumulated in the trap are reduced, at the cost of temporary overconsumption of engine fuel.
- the nitric oxide production value is sent to the trap monitor 20, which is a cumulative computing unit, for example using an integrator 21. nitrogen oxide production values calculated by the estimator 10.
- the monitor 20 includes a comparator 22 which detects when the total amount of nitrogen oxides accumulated in a delivery system 33 exceeds a threshold referred to herein as "ThresholdCumul".
- Procedure 23 which reduces the oxides of nitrogen present in the pollution control system 33.
- Procedure 23, triggered by a purge control unit, may for example consist of modifying the air / fuel ratios sent to the cylinder as well as the pressures in the gas supply circuit 30, so as to obtain at the cylinder outlet reducing chemical species which will reduce the nitrogen oxides stored in the deposition system 33.
- the trigger threshold indicated in step 22 may therefore be a function of the instantaneous driving conditions of the vehicle.
- the estimation of the total quantity of pollutants accumulated in the deposition system 33 makes it possible to trigger the elimination phases of these pollutants, which are costly in energy, only when these phases are really become necessary.
- FIG. 3 illustrates yet another example of application of an engine equipped with a system 1 0 estimating pollutants according to the invention.
- FIG. 3 shows elements that are common to FIGS. 1 and 2, the same elements being designated by the same references.
- the vehicle on which the gasoline engine 1 is mounted is also provided with a second electric motor unit 38, comprising for example an electric motor 36 and a battery 37.
- a second electric motor unit 38 comprising for example an electric motor 36 and a battery 37.
- the vehicle is equipped with a 25 energy management module "LGE" referenced 25.
- the torque command C to t emanating from the pedal 12 is thus transmitted to the energy management module 25 which, depending on the requested torque level, the instantaneous speed of the vehicle, and possibly other parameters, sends a first torque set C ei ec to the electric motor group 38 and a second set point of Ctherm torque to a calculation module 24 involved in the regulation of the heat engine 1.
- the arbitration between the amount of torque to be supplied by the electric motor and the amount of torque to be supplied by the heat engine may for example take into account the low efficiency of the engine at moderate torques and reduced speeds, for example when starting the vehicle. which is preferably done with the electric motor 36.
- the energy management module 25 can thus take into account this setpoint modi ed to compensate for the differential between the initial setpoint Ctherm and the modulated setpoint C cons by increasing or decreasing accordingly the setpoint Ceiec sent to the electric motor 36.
- the pollutant estimator 10 can calculate one or more quantities of polluting species which make it possible to read, in one or more maps 26, the correction coefficients of which here only one is represented K po i 2 .
- This corrective coefficient may, for example, multiply the setpoint torque Ctherm sent a priori by the management module 25 to the moderator module 24.
- a multiplier 27 can thus deliver the modified torque setpoint C cons on the one hand to the module energy management system 25, and on the other hand, a calculator 15 for boosting the set pressure P CO ns - P corresponding to the gas pressure to be reached in the intake manifold 32.
- the set pressure can then be subtracted at a subtractor 29 from the measured pressure P co i delivered by the pressure sensor 9.
- the difference to the setpoint ⁇ can be sent to a regulator 8 which can be a regulator of the PID type or another type of regulator and which delivers a regulation value ⁇ to the conversion unit 7 which, using other control parameters as well as to the value ⁇ then develops the position setpoint "u" blades of the turbine 5b.
- a regulator 8 which can be a regulator of the PID type or another type of regulator and which delivers a regulation value ⁇ to the conversion unit 7 which, using other control parameters as well as to the value ⁇ then develops the position setpoint "u" blades of the turbine 5b.
- the pollutant estimator 10 thus makes it possible to optimize the distribution of couples between thermal engines and electric motors, not only on consumption criteria, which are taken into account at the module level. energy management 25, but also to limit the instantaneous emission, and if possible the global emissions, of one or more polluting species.
- these sensors may comprise a flowmeter placed to measure the flow of incoming fresh air, or may not include such a flow meter, the estimates of the incoming air flow and of the richness being then, for example, as in the embodiment illustrated in FIG.
- pollutant estimator 10 It reduces the ecological footprint of the vehicle, by not modifying almost the engine architecture, and without increasing the cost of the vehicle.
- the sensors used are already present for other engine control stages, and are generally subject to control procedures as the vehicle is being driven, which makes it possible to guarantee the reliability of the data transmitted to the vehicle.
- the invention is not limited to the embodiments described, and can be declined in many variants.
- the richness and flow rates of air entering the cylinders and trapped in the cylinders can be estimated in various ways, corresponding to the embodiment of Figure 1, the embodiment of Figure 2, or other modes of realization.
- Filling coefficient mapping 41 can be used and no trapping coefficient mapping can be used, considering that it is equal to 1 in first approximation.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1355008A FR3006372B1 (en) | 2013-05-31 | 2013-05-31 | METHOD OF ESTIMATING POLLUTING EMISSIONS OF INTERNAL COMBUSTION ENGINE AND ASSOCIATED METHOD OF CONTROLLING ENGINE |
PCT/FR2014/051212 WO2014191665A1 (en) | 2013-05-31 | 2014-05-23 | Method for estimating the pollutant emissions of an internal combustion engine and related method for controlling the engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3004608A1 true EP3004608A1 (en) | 2016-04-13 |
EP3004608B1 EP3004608B1 (en) | 2018-08-22 |
Family
ID=48782531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14731713.5A Active EP3004608B1 (en) | 2013-05-31 | 2014-05-23 | Method for estimating the pollutant emissions of an internal combustion engine and related method for controlling the engine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3004608B1 (en) |
FR (1) | FR3006372B1 (en) |
WO (1) | WO2014191665A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3042000B1 (en) * | 2015-10-06 | 2017-12-08 | Renault Sas | METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5894725A (en) * | 1997-03-27 | 1999-04-20 | Ford Global Technologies, Inc. | Method and apparatus for maintaining catalyst efficiency of a NOx trap |
WO2000028201A1 (en) * | 1998-11-09 | 2000-05-18 | Siemens Aktiengesellschaft | METHOD FOR ADAPTING THE NOx CONCENTRATION OF AN INTERNAL COMBUSTION ENGINE OPERATED WITH AN EXCESS OF AIR |
JP3693855B2 (en) * | 1999-06-07 | 2005-09-14 | 三菱電機株式会社 | Air-fuel ratio control device for internal combustion engine |
US6499293B1 (en) * | 2000-03-17 | 2002-12-31 | Ford Global Technologies, Inc. | Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine |
US7155331B1 (en) * | 2003-12-15 | 2006-12-26 | Donaldson Company, Inc. | Method of prediction of NOx mass flow in exhaust |
FR2906842B1 (en) * | 2006-10-09 | 2008-12-05 | Renault Sas | SYSTEM FOR DETERMINING THE MASS FLOW OF NITROGEN OXIDES EMITTED IN EXHAUST GASES OF AN INTERNAL COMBUSTION ENGINE |
EP2574763A1 (en) * | 2011-09-30 | 2013-04-03 | Volvo Car Corporation | NOx emission estimation method and arrangement |
-
2013
- 2013-05-31 FR FR1355008A patent/FR3006372B1/en not_active Expired - Fee Related
-
2014
- 2014-05-23 EP EP14731713.5A patent/EP3004608B1/en active Active
- 2014-05-23 WO PCT/FR2014/051212 patent/WO2014191665A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2014191665A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3004608B1 (en) | 2018-08-22 |
WO2014191665A1 (en) | 2014-12-04 |
FR3006372B1 (en) | 2017-02-24 |
FR3006372A1 (en) | 2014-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2874237A1 (en) | Supercharged internal combustion engine e.g. gasoline engine, controlling method, involves comparing values of mass air flow, and estimating defect if values have amplitude difference higher than predefined threshold | |
FR2813100A1 (en) | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE | |
EP2361349B1 (en) | Method of dynamically estimating the fresh air flow rate supplied to an engine with high-pressure and low-pressure egr circuits | |
FR2915237A1 (en) | Variable geometry supercharger controlling system i.e. electronic control unit, for internal combustion engine i.e. diesel engine, of motor vehicle, has calculating block deducing set point of geometry of compressor to regulate geometry | |
EP1630387A1 (en) | Method for controlling the amount of recirculated exhaust gas in an internal combusiton engine of a vehicle | |
EP0954689A1 (en) | Device for controlling an internal combustion engine with controlled ignition and direct injection | |
EP3004608B1 (en) | Method for estimating the pollutant emissions of an internal combustion engine and related method for controlling the engine | |
EP2430298B1 (en) | Estimation of the nitrogen oxide (nox) concentration in an internal combustion engine | |
WO2014041296A1 (en) | Method for regulating a supercharge for a turbocompressor coupled to an electric machine, and corresponding turbocompressor device | |
EP1809880B1 (en) | Method for estimating the pumping torque of an engine | |
EP2655838B1 (en) | System and method for controlling an internal combustion engine for a motor vehicle in transit | |
EP2751416B1 (en) | System and method for controlling an internal combustion engine of an automotive vehicle with high-pressure and low-pressure exhaust gas recirculation circuits in transient mode operation | |
EP1647692A1 (en) | Air inlet control method for an internal combustion engine and automotive vehicle for applying this method | |
FR2923538A3 (en) | Turbine upstream pressure estimating system for supercharged oil engine of motor vehicle, has calculation units calculating expansion ratio of turbine from magnitude representing temperature variation to deduce upstream pressure of turbine | |
FR2833998A1 (en) | I.c. engine recycled exhaust gas mass flow calculation procedure and apparatus uses measurements of pressure and fresh air temperature | |
EP2256322B1 (en) | Effect of the nox control on the combustion noise control in an internal combustion engine | |
EP1662121A1 (en) | Method of controlling an intake system of an internal combustion engine and motor vehicle for carrying out said method | |
EP1347163A1 (en) | Method for estimating pumping loss in an internal combustion engine | |
WO2011001057A2 (en) | System for calibrating the operating range of a supercharged internal combustion engine | |
FR2923537A1 (en) | Pressure estimation system for diesel engine of motor vehicle, has calculation unit calculating pressure drop ratio of turbine from magnitude representing variation relative to temperature between inlet and outlet of turbine | |
EP4234909A1 (en) | Method for controlling richness in a carburized mixture of an internal combustion engine of a motor vehicle | |
FR2997452A1 (en) | Turbocompressor controlling method for internal combustion engine of vehicle i.e. car, involves arranging coordinates with power variations corresponding to difference between power instruction and theoretical power | |
FR3114619A1 (en) | Method for determining the mass of gas sucked into a cylinder taking into account the actual conditions of use | |
EP4163484A1 (en) | Method for controlling the torque output of an internal combustion engine of an automobile with asymmetric cycle | |
FR2931892A1 (en) | Exhaust gas recirculation rate estimating method for diesel engine of vehicle, involves estimating volumetric efficiency of internal combustion engine from parameters for estimating exhaust gas recirculation rate of engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20151019 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20170516 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20180409 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1032810 Country of ref document: AT Kind code of ref document: T Effective date: 20180915 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602014030851 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20180822 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181122 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181123 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181222 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181122 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1032810 Country of ref document: AT Kind code of ref document: T Effective date: 20180822 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602014030851 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20190523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190531 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20190531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181222 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20140523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180822 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230608 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20231228 AND 20240103 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602014030851 Country of ref document: DE Owner name: NEW H POWERTRAIN HOLDING, S.L.U., ES Free format text: FORMER OWNER: RENAULT S.A.S., BOULOGNE-BILLANCOURT, FR |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240521 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240521 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20240528 Year of fee payment: 11 |