EP2690270A1 - Regenerationsverfahren eines Partikelfilters in einem Abgassystem eines Kraftfahrzeugs - Google Patents

Regenerationsverfahren eines Partikelfilters in einem Abgassystem eines Kraftfahrzeugs Download PDF

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Publication number
EP2690270A1
EP2690270A1 EP13171309.1A EP13171309A EP2690270A1 EP 2690270 A1 EP2690270 A1 EP 2690270A1 EP 13171309 A EP13171309 A EP 13171309A EP 2690270 A1 EP2690270 A1 EP 2690270A1
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EP
European Patent Office
Prior art keywords
regeneration
motor vehicle
sound signal
exhaust line
sso1
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.)
Withdrawn
Application number
EP13171309.1A
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English (en)
French (fr)
Inventor
Christophe Colignon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2690270A1 publication Critical patent/EP2690270A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—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
    • F02D41/029—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 particulate filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • 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
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • 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
    • F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
    • F02D41/0245—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus by increasing temperature of the exhaust gas leaving the engine

Definitions

  • the invention relates to a method for regenerating a particulate filter fitted to an exhaust line of a motor vehicle. It relates to such a regeneration process. It also relates to a device for implementing such a method.
  • a motor vehicle is commonly equipped with a particulate filter to retain particles produced by a heat engine which is provided with the motor vehicle.
  • the particulate filter is housed inside an exhaust line which is arranged between the heat engine and an external environment to exhaust exhaust gas containing the particles to the latter.
  • the particulate filter is traversed by the exhaust gas and retains particles, which they transport, prior to the discharge of the exhaust gas to the external environment.
  • the particulate filter tends to clog which changes the performance of the engine and in particular increases the fuel consumption of the engine which is a drawback.
  • the motor vehicle is equipped with a hybrid engine comprising the engine and an electric motor
  • a standard idle speed for example of the order of 800 rev / min.
  • an advancement of the motor vehicle being obtained from the implementation of the electric motor.
  • the heat engine is decoupled from an advancement system of the motor vehicle.
  • a standard idle speed does not allow an increase in the temperature of the exhaust gas to a level sufficient to obtain the burning of particles retained by the particulate filter.
  • the decoupling of the engine is detrimental, especially during a rolling profile at very low speed, for example less than 20km / h. This results in some cases in the impossibility of regenerating the particulate filter satisfactorily, which is a drawback.
  • a regeneration method of a particulate filter fitted to an exhaust line in connection with a heat engine of a motor vehicle the heat engine being indifferently the only means of propulsion of the motor vehicle or constituent of a hybrid engine comprising another motor means involved in the propulsion of the motor vehicle, such as an electric motor.
  • An object of the present invention is to provide a method for regenerating a particle filter housed inside an exhaust line fitted to a combustion engine of a motor vehicle, the heat engine being indifferently the only means of propulsion of the motor vehicle or constituting a hybrid engine, said method for a rapid and satisfactory regeneration of the particulate filter, for example in less than 20 minutes, including in severe rolling situations, for example during a profile running at low speed of the motor vehicle, in particular less than 20 km / h, such a method being implemented without any nuisance, especially noise, for a user of the motor vehicle, such a method also making it possible to effectively reduce particulate emissions towards a environment outside the motor vehicle.
  • Another object is to propose a simple and effective device for the implementation of such a regeneration method.
  • a method of the present invention is a method of regenerating a particulate filter housed within an exhaust line equipping a thermal engine or hybrid thermal-electric or hybrid thermal-pneumatic which is provided with a motor vehicle.
  • the heat engine can therefore be indifferently the only means of propulsion of the motor vehicle or is associated with another means of propulsion, such as an electric motor or other.
  • the regeneration process comprises a step of increasing an exhaust gas temperature flowing inside the exhaust line upstream of the particulate filter in an exhaust gas flow direction at the inside the exhaust line.
  • the step of increasing comprises a step of operating the engine at an idle speed during the regeneration which is higher than a standard idling speed.
  • the stage of implementation of the engine at idle speed during regeneration is simultaneous with a step of synthesizing a sound environment inside the motor vehicle.
  • the idling speed during the regeneration is advantageously a function of a short-term driving criterion.
  • the idling speed during the regeneration is advantageously a decreasing function of the short-term driving criterion.
  • the idling speed during the regeneration is advantageously a step function of the short-term driving criterion.
  • the function of the rolling criterion is understood to mean a function that makes it possible to estimate how easily the driver will be able to trigger the regeneration of the particulate filter.
  • the objective is to characterize the type of taxiing, in a manner known in the automotive field, for example severe city traffic with traffic jams, city taxi, road taxi, highway taxi, mountain taxi ..., in order to help the supervisor to take its decisions to trigger and stop regeneration.
  • the patent WO 2006/005873 for examples of the type of vehicle running.
  • the instantaneous driving conditions can also be determined from the engine load, the engine speed, the vehicle speed, and / or the thermal level in the vehicle exhaust line.
  • the step of synthesizing a sound environment inside the motor vehicle is for example anticipated by a lapse of time compared to the implementation stage of the engine at idle speed during regeneration.
  • a device of the present invention is a regeneration device for carrying out such a regeneration method which is mainly recognizable in that the regeneration device comprises a particle filter supervisor which is in relation with the heat engine or Hybrid thermal-electric or hybrid thermal-pneumatic and particulate filter.
  • the embedded software function that manages the operation of the particulate filter by supervising its state of charge (in soot) and deciding when to launch regeneration and when to stop it.
  • the regeneration device is preferably in relation with a temperature sensor housed inside the exhaust line upstream of the particulate filter in a direction of flow of the exhaust gases inside the line of exhaust.
  • the regeneration device is preferably related to a device for synthesizing a sound environment inside the motor vehicle capable of implementing the synthesis step.
  • the present invention proposes an increase in the engine speed, which depends on the driving conditions, aimed at increasing the temperature of the exhaust gas at the inlet of the particulate filter (regardless of the altitude at which the vehicle is located). , and to couple this increase in speed to a sound modification to "cover" the increase in the noise generated by the engine, the objective being to accelerate the regeneration of the particulate filter.
  • a motor vehicle of the present invention is recognizable in that the motor vehicle is equipped with such a regeneration device.
  • the figure 1 is a schematic view of a regeneration device of the present invention that equips a thermal engine of a motor vehicle.
  • the figure 2 is a schematic view of a regeneration process implemented by the regeneration device illustrated in the previous figure.
  • the figure 3 is a schematic view of an idle profile of the engine according to a criterion of short-term running.
  • the figure 4 schematically represents an example of highlighting the sliding window used during a step of synthesizing a sound environment inside the motor vehicle.
  • the figure 5 schematically represents an example of a synopsis of the course of the step of synthesizing a sound environment inside the motor vehicle.
  • the figure 6 schematically represents another example of highlighting the sliding window used in the step of synthesizing a sound environment inside the motor vehicle.
  • the figure 7 shows schematically an example of a template of the nominal position, according to the speed of the vehicle, of the sliding window used in the step of synthesizing a sound environment inside the motor vehicle.
  • the figure 8 schematically represents an example of a template, as a function of the depression of the accelerator pedal, of the gain applied to the sliding window used in the step of synthesizing a sound environment inside the motor vehicle.
  • the figure 9 schematically represents another example of a template of the nominal position, as a function of the speed of the vehicle, of the sliding window used in the step of synthesizing a sound environment inside the motor vehicle.
  • the figure 10 schematically represents another example of template, depending on the depression of the accelerator pedal, the gain applied to the sliding window used in the step of synthesizing a sound environment inside the motor vehicle.
  • the figure 11 schematically represents an example of a template, as a function of the engine speed, of the gain applied to a harmonic of the fundamental frequency of a tonal signal used in the step of synthesizing a sound environment inside the motor vehicle.
  • the figure 12 schematically represents an example of a template, based on a linear combination of the speed of the vehicle and the depression of the accelerator pedal, of the overall gain applied to the set of a reconstituted tonal signal used in the step synthesis of a sound environment inside the motor vehicle.
  • a motor vehicle is equipped with a heat engine 1 to provide for its movement.
  • the heat engine 1 is indifferently a gasoline engine or a diesel engine.
  • the heat engine 1 is for example the only means of propulsion of the motor vehicle.
  • the heat engine 1 is for example still constituting a hybrid engine comprising the heat engine 1 and an electric motor 1 ', or the like, which are able to allow in particular a displacement of the motor vehicle.
  • the heat engine 1 produces exhaust gases 2 which are discharged through an exhaust line 3 to an external environment 4 to the motor vehicle.
  • the exhaust gases 2 contain particles, such as soot, dust or the like, which it is desirable to retain prior to their discharge to the external environment 4.
  • the exhaust line 3 houses a particle filter 5 which is traversed by the exhaust gas 2 during a path of the latter inside the exhaust line 3.
  • the particulate filter 5 is an obstacle for the particles and forms a means of retention of these. As and when the use of the motor vehicle, the particulate filter 5 tends to clog, which in particular modifies the performance of the engine 1 and the fuel consumption of the engine 1.
  • the present invention proposes a regeneration process A which comprises a step of increasing E of a temperature T of the exhaust gases 2 upstream of the particulate filter 5 according to a flow direction 6 of the exhaust gas 2 inside the exhaust line 3.
  • the increase step E is carried out from an implementation step A1 of the heat engine 1 at idling speed during regeneration R1, the idling speed during regeneration R1 being strictly greater than a standard idling speed R0 implemented during a standard idling step A0.
  • the implementation step A1 is simultaneous with a synthesis step B of a sound environment inside the motor vehicle.
  • the increase step E comprises concomitantly a passage of the heat engine 1 from a standard idle speed R0 to an idle speed during the regeneration R1 and an implementation of the synthesis step B.
  • the heat engine 1 rotates at idle speed during the regeneration R1 which is strictly greater than the idle speed R0 standard which is for example of the order of 800 revolutions / min.
  • the idling speed during the regeneration R1 is a function of a CT short-term running criterion.
  • the short-term rolling criterion CT expressed as a percentage, extends between a minimum value equal to 0% for which a regeneration of the particle filter 5 is impossible and a maximum value for which the running conditions are favorable for regeneration.
  • the short-term running criterion CT depends in particular on a speed V of the motor vehicle, an instantaneous torque C delivered by the heat engine 1 and the temperature T measured upstream of the particle filter 5. .
  • the figure 3 represents a rolling profile according to the criterion of short-term rolling in which the rolling profile is a staircase function having various operating ranges P1, P2, P3, P4.
  • a first range P1 is a range where the short-term running criterion CT is between 0% and 20% for which regeneration is almost impossible at the standard idle speed, it follows that a R regime of the heat engine 1 is worn. at idle speed during regeneration R1 of 1250 rpm.
  • a second range P2 is a range where the criterion of short-term running CT is between 20% and 40%, this criterion being more favorable than that of the first range P1, the speed R of the heat engine 1 is brought to a steady state. idle during regeneration R1 of 1000 rpm.
  • a third range P3 is a range where the short-term running criterion CT is between 40% and 50%, this criterion being more favorable than that of the second range P2, the speed R of the heat engine 1 is brought to a steady state. idle during regeneration R1 of 900 rpm.
  • a fourth range P4 is a range where the short-term running criterion CT is between 50% and 100%, this criterion being more favorable than that of the third range P3, the R speed of the heat engine 1 is maintained at standard idle speed of 800 rpm.
  • the idling speed during the regeneration R1 is preferably a decreasing function of the short-term running criterion CT.
  • the passage of the idle R of the heat engine 1 from a standard idle speed R0 to an idle speed during the regeneration R1 causes an increase in noise nuisance for a user placed inside the motor vehicle.
  • the present invention advantageously proposes that the implementation step A1 of the heat engine 1 at an idle speed during the regeneration R1 is accompanied by the synthesis step B of a sound environment inside the motor vehicle.
  • the time interval L is for example between one minute and five minutes.
  • the lapse of time L is zero, the synthesis step B of a sound environment inside the motor vehicle and that the implementation step A1 of the heat engine 1 to a regime idle during regeneration R1 start simultaneously.
  • FIG. 4 schematically represents an example of highlighting the sliding window used the synthesis step B of a sound environment inside the motor vehicle. For reasons of clarity, the scale between the different positions of the sliding window is not respected.
  • An original sound signal sso2 is stored as a function of time t in a memory. On the ordinate, it is the acoustic pressure expressed in Pascals, which represents the amplitude of the original sound signal.
  • the windows F1 to F5 actually represent five positions F1, F2, F3, F4 and F5 of the sliding window. It is the application of a window F1 to F5 to the sound signal of origin sso2 , during the extraction step, which gives some of the parts extracted from the original sound signal which will be used to realize the synthesis of the sound signal of restitution.
  • the parts extracted from the original sound signal that will be used to carry out the synthesis of the restitution sound signal are also called grains.
  • the extraction step is like a step of applying several windows, that is to say applying several positions of the sliding window.
  • the difference pg between the windows F1 and F2 represents the slip pitch pg , that is to say the smallest difference that can be between two adjacent positions of the sliding window.
  • the size of slip pitch pg can vary from a few samples, even possibly a significant number of samples, advantageously to a single sample to maintain a maximum richness in the possibilities offered to extract parts of the original sound signal sso2 .
  • the window F2 has a width d which will remain preferentially constant over time, but which could possibly vary according to one of the driving parameters of the vehicle, for example the speed of the vehicle.
  • the window F2 is positioned at the instant t i on the axis of time t.
  • the sampling frequency of the original sound signal sso2 or sso1 is about 45 kHz, for example 44,100 Hz
  • the slip pitch corresponding to the value of a sample is about 23 s
  • the width of a window is worth about 100 ms
  • the length of small displacements of a window around a nominal position intended to be repeated several times remains bounded by an interval of plus or minus 5 ms around the nominal position
  • the spectral density which is the number of grains or parts extracted from the original sound signal is advantageously about 16 grains per second.
  • the figure 5 schematically represents an example of a synopsis of the progress of the synthesis step B of a sound environment inside the motor vehicle.
  • Several pc driving parameters are used to drive the extraction step. Among these parameters are used the RPM engine speed expressed in rotations per minute rpm, the depression of the accelerator pedal EP expressed as a%, the speed of the vehicle V expressed in kilometers per hour km / h.
  • these different driving parameters are regularly refreshed, for example every 10ms per reading on a car network, for example of the CAN type. Indeed, the engine speed, the pedal depression and the vehicle speed are all available on the CAN automobile network.
  • a part P2 of the system are stored original sound signals, for example the original sound signals sso1 and sso2 , in separate memories. Respectively associated with the sound signals sso1 and sso2 , are stored maps cs1 and cs2.
  • the mapping cs1, associated with the sound signal of origin sso1 contains two elementary maps, csl1 and csl2.
  • the elementary map csl1 represents a first mask of the nominal position, according to the speed of the vehicle, of the sliding window used. At a given instant of measurement, the elementary map csl1 makes it possible to associate the value of the vehicle speed with a nominal position, along the original sound signal sso1, with the sliding window.
  • a gain is applied to obtain the part extracted from the original sound signal sso1 which will be used by the synthesis of the restitution sound signal.
  • This gain is given by the elementary map csl2 thanks to the value of the depression of the acceleration pedal at said given instant of measurement.
  • the part extracted from the original sound signal sso1 is a grain of the sound signal of origin sso1.
  • the cs2 map associated with the sound signal of origin sso2 , also contains two elementary maps, cs21 and cs22.
  • the basic mapping cs21 represents a second template of the nominal position, different from the first template, depending on the speed of the vehicle, the sliding window used.
  • the basic mapping cs22 represents a second template, different from the first template, depending on the depression of the accelerator pedal, the gain applied to the sliding window used.
  • the elementary cartography cs22 could represent, if necessary, another template, according to one of the driving parameters or according to a linear combination of these driving parameters, of the modification of the height of the grain, corresponding to a spectral translation. of the part extracted from original sound signal. Of course, there may be more than two original sound signals stored.
  • either one or the other, original sound signals sso1 and sso2 can be selected.
  • the original sound signal or signals selected, sso1 and or sso2 the corresponding cartography or maps, cs1 and or cs2 , are used to control the extraction step.
  • it can be chosen or not to add a tonal signal to generate, or indeed even several tonal signals to generate.
  • This tonal signal is generated using a mapping cs3 including two elementary maps cs31 and cs32.
  • the elementary map cs31 represents, for different harmonics of a fundamental frequency, the curve of gain in dB as a function of the engine speed.
  • the elementary map cs32 represents for the set constituted by the different harmonics of a fundamental frequency as well as by said fundamental frequency, the overall gain curve in dB (decibels) as a function of a linear combination of the vehicle speed and the pedal depression.
  • a part P3 of the system are different processing DSP1 and DSP2 respectively for synthesizing a signal from the sets of parts extracted respectively original sound signals sso1 and sso2 firstly by extracting the parts extracted from the sound signals of origin using the maps stored in the P2 part of the system and then by concatenation of the different grains or parts extracted from the original sound signal, possibly previously filtered.
  • Another DSP3 processing makes it possible to calculate a tonal synthesis signal to be added to one or the other of the signals synthesized from the original sound signals sso1 and sso2. The calculation uses cs3 mapping to generate the tonal synthesis signal.
  • a summator S makes it possible to sum the signals synthesized from the sound signals of origin sso1 and sso2 if these two signals have been synthesized and to keep the signals which have been synthesized if there has been only one .
  • the summator S also makes it possible to add, to the signal synthesized from an original sound signal or, where appropriate, to the sum of the signals synthesized from the original sound signals sso1 and sso2 , the tonal synthesis signal generated. by calculation if there is one.
  • On the output of the summator S there is the restitution sound signal.
  • the sound reproduction signal is sent on an audio channel HP, for example an HP speaker, to be restored in the passenger compartment of the vehicle.
  • the figure 6 schematically represents another example of highlighting the sliding window used in the synthesis method according to the invention.
  • the windows F6, F7, F8 and F9 represent four windows of width d which are successively applied to the original sound signal sso1 different from the original sound signal sso2 of the figure 4 .
  • the four windows F6 to F9 there is from one window to the next a large overlap to ensure good continuity during the return of the signal Synthetic sound reproduction.
  • the concatenation itself can be a simple concatenation, each part extracted one after the other, or a more complex concatenation, where one already starts to replay the next extracted part while replaying the previously extracted part even before it was completed. This overlap in the concatenation of the extracted parts to replay the extracted parts is preferential.
  • the figure 7 shows schematically an example of a template of the nominal position, as a function of the speed of the vehicle, of the sliding window used in the synthesis method according to the invention.
  • the place of the original audible signal where the sliding window will be applied here only depends on the vehicle speed.
  • This template establishes a correspondence between the speed of the driven vehicle and the time sequence of the original sound signal used. This correspondence is performed according to a desired sound effect. Each desired sound effect corresponds to a different plot of the curve representing the template.
  • the sliding window will move, from right to left along the time axis, from the nominal position corresponding to the instant t i + n of sound signal of origin sso1 at the nominal position corresponding to the instant t i of the original sound signal sso1. If the driven vehicle accelerates from the vehicle speed vi to the vehicle speed v i + n , the sliding window will move, from left to right on the time axis, the nominal position corresponding to the instant t i of the sound signal. of origin sso1 at the nominal position corresponding to the instant t i + n of the original sound signal sso1.
  • the figure 8 shows schematically an example of a template, depending on the depression of the accelerator pedal, the gain applied to the sliding window used in the synthesis method according to the invention. Again, the gain curve depends on the desired sound effect. In general, an increase in the pedal depression increases the gain and the overall sound volume, while a relaxation of the pedal depression decreases the gain and the overall sound volume. At every moment of given measurement, a value of the pedal depression is determined and the value of the corresponding gain to be applied is read on the ordinate.
  • the figure 9 schematically represents another example of a template of the nominal position, as a function of the speed of the vehicle, of the sliding window used in the synthesis method according to the invention. The operation of the figure 9 is similar to that of the figure 7 .
  • the figure 10 schematically represents another example of template, depending on the depression of the accelerator pedal, the gain applied to the sliding window used in the synthesis method according to the invention.
  • the operation of the figure 10 is similar to that of the figure 8 .
  • the figure 11 shows schematically an example of a template, as a function of the engine speed, of the gain applied to a given harmonic h of the fundamental frequency of a tonal signal used in the synthesis method according to the invention.
  • a curve like the one shown on the figure 11 exists for both the fundamental frequency (if present) and for each of the harmonics associated with the fundamental frequency that are used (which can be used without the fundamental frequency). On the figure 11 only one curve has been shown for reasons of clarity.
  • the figure 12 schematically represents an example of a template, based on a linear combination of the speed of the vehicle and the depression of the accelerator pedal, of the overall gain applied to the whole of a reconstituted tonal signal used in the method of synthesis according to the invention.
  • the linear combination of the driving parameters represented on the abscissa is calculated.
  • curves giving values in ordinate as a function of values in abscissa are represented and one speaks of reading on the ordinate because that clearly explains the process.
  • a regeneration device 100 for carrying out such a regeneration process A comprises a supervisor 101 of the particle filter 5 which is connected with the heat engine 1 and the particle filter 5.
  • the regeneration device 100 is also in relation with a temperature sensor 102 housed inside the exhaust line 3 upstream of the particulate filter 5 in a direction of flow 6 of the exhaust gases 2 to the The temperature sensor 102 is capable of measuring the temperature T of the exhaust gases 2 upstream of the particle filter 5 in a direction of flow 6 of the exhaust gases 2 to 1. the interior of the exhaust line 3.
  • the regeneration device 100 is finally in relation with a device 103 for synthesizing a sound environment inside the motor vehicle which is able to implement said synthesis step B.
  • the invention also applies to gasoline-type heat engines, with some possibly some adaptations to be made, such as a modification of the feedrate to the fuel. ignition instead of the sub-setting of the main injection.
  • the engine can also be electric hybrid type by associating an electric machine or pneumatic hybrid by associating a compressed gas tank.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
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  • Hybrid Electric Vehicles (AREA)
EP13171309.1A 2012-07-24 2013-06-10 Regenerationsverfahren eines Partikelfilters in einem Abgassystem eines Kraftfahrzeugs Withdrawn EP2690270A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1257142A FR2993931B1 (fr) 2012-07-24 2012-07-24 Procede de regeneration d'un filtre a particules equipant une ligne d'echappement d'un vehicule automobile

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EP2690270A1 true EP2690270A1 (de) 2014-01-29

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN110821690A (zh) * 2019-11-28 2020-02-21 安徽江淮汽车集团股份有限公司 获取柴油机怠速目标值方法、装置、设备及存储介质
CN112576391A (zh) * 2020-11-30 2021-03-30 潍柴动力股份有限公司 提升驻车再生效率的方法、装置及系统

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