FR2816662A1 - System for aiding the regeneration of a particulate filter integrated in the exhaust system of an automotive vehicle, uses controlling unit for determining optimal regeneration torque to provide required torque - Google Patents

System for aiding the regeneration of a particulate filter integrated in the exhaust system of an automotive vehicle, uses controlling unit for determining optimal regeneration torque to provide required torque Download PDF

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Publication number
FR2816662A1
FR2816662A1 FR0014640A FR0014640A FR2816662A1 FR 2816662 A1 FR2816662 A1 FR 2816662A1 FR 0014640 A FR0014640 A FR 0014640A FR 0014640 A FR0014640 A FR 0014640A FR 2816662 A1 FR2816662 A1 FR 2816662A1
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France
Prior art keywords
torque
regeneration
engine
heat engine
particulate filter
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Granted
Application number
FR0014640A
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French (fr)
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FR2816662B1 (en
Inventor
Herve Klein
Tallec Patrice Le
Nicolas Henri
Benoit Tremeau
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PSA Automobiles SA
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Peugeot Citroen Automobiles SA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/47—Engine emissions
    • B60Y2300/476—Regeneration of particle filters
    • 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
    • F02D2041/026—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 using an external load, e.g. by increasing generator load or by changing the gear ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402—Multiple injections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

There is a unit (4) for controlling the functioning of the IC engine (1) and the electric machine in order to provide the required torque to the wheels of the vehicle, connected to the monitoring unit (5) for monitoring the particulate filter for triggering a regeneration phase in it, during which this control unit determines the optimal regeneration torque to be delivered by the engine, calculating a differential torque value between the required torque and the optimal regeneration torque and piloting the engine at its optimal regeneration torque and the electric machine of the differential torque, in the alternator, for recharging the electric energy storage unit, in a manner to form the torque required by the wheels. The IC engine has a reversible electric machine (2) functioning either as a motor or alternator, connected to energy storing unit (3).

Description

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La présente invention concerne un système d'aide à la régénération d'un filtre à particules intégré dans une ligne d'échappement d'un moteur thermi- que de véhicule automobile.  The present invention relates to a system for assisting the regeneration of a particulate filter integrated into an exhaust line of a thermal engine of a motor vehicle.

Dans le cadre général de la réduction des émissions polluantes liées au fonctionnement des moteurs thermiques des véhicules automobiles, on a été amené à intégrer dans les lignes d'échappent de ceux-ci et en particulier dans les lignes d'échappement des moteurs Diesel de véhicules automobiles, des filtres à particules.  Within the general framework of the reduction of polluting emissions linked to the functioning of the thermal engines of motor vehicles, we have had to integrate into the exhaust lines of these and in particular into the exhaust lines of diesel engines of vehicles automobiles, particulate filters.

Ces filtres permettent de piéger les particules émises dans les gaz d'échappement du moteur, mais nécessitent une régénération périodique pour éviter leur colmatage.  These filters make it possible to trap the particles emitted in the engine exhaust gases, but require periodic regeneration to avoid clogging.

On utilise alors des moyens de surveillance du filtre à particules pour déclencher lorsque cela devient nécessaire, une phase de régénération de celuici.  Particulate filter monitoring means are then used to trigger a regeneration phase when necessary.

Cette phase de régénération peut par exemple être déclenchée par des moyens de contrôle du fonctionnement du moteur qui sont alors adaptés par exemple pour piloter des moyens d'alimentation en carburant de celui-ci afin d'enclencher une phase d'injections multiples de carburant dans les cylindres du moteur pendant leur phase de détente, ce phénomène étant également appelés "post-injection".  This regeneration phase can for example be triggered by means of controlling the operation of the engine which are then adapted, for example, to control means for supplying fuel to the latter in order to initiate a phase of multiple fuel injections into the engine cylinders during their expansion phase, this phenomenon also being called "post-injection".

Ceci permet alors d'augmenter la température des gaz d'échappement afin d'amener les particules piégées à leur température de combustion pour régénérer le filtre.  This then makes it possible to increase the temperature of the exhaust gases in order to bring the trapped particles to their combustion temperature to regenerate the filter.

On sait également que les moteurs thermiques de certains véhicules automobiles, peuvent être associés à des machines électriques réversibles pouvant fonctionner en moteur ou en alternateur, ces machines étant également connues sous le nom d'alterno-démarreur.  It is also known that the heat engines of certain motor vehicles can be associated with reversible electrical machines that can operate as engines or alternators, these machines also being known by the name of alternator-starter.

Le but de l'invention est d'optimiser, dans un véhicule équipé d'un moteur thermique associé à une telle machine, le contrôle du fonctionnement de ceux-ci afin d'optimiser la régénération du filtre à particules.  The object of the invention is to optimize, in a vehicle equipped with a heat engine associated with such a machine, the control of the operation of these in order to optimize the regeneration of the particulate filter.

A cet effet, l'invention a pour objet un système d'aide à la régénération d'un filtre à particules intégré dans une ligne d'échappement d'un moteur thermique de véhicule automobile, ce moteur thermique étant associé à une machine électrique réversible pouvant fonctionner en moteur ou en alternateur, raccordée  To this end, the subject of the invention is a system for assisting the regeneration of a particulate filter integrated in an exhaust line of a heat engine of a motor vehicle, this heat engine being associated with a reversible electric machine. can operate as motor or alternator, connected

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à des moyens de stockage d'énergie électrique, caractérisé en ce qu'il comporte des moyens de contrôle du fonctionnement du moteur thermique et de la ma- chine électrique afin de fournir un couple requis aux roues du véhicule, raccordés à des moyens de surveillance du filtre à particules pour déclencher une phase de régénération de celui-ci, durant laquelle ces moyens de contrôle déterminent un couple optimal de régénération à délivrer par le moteur thermique du véhicule, calculent une valeur de couple différentiel entre le couple requis et le couple optimal de régénération et pilotent le moteur thermique à son couple optimal de régénération et la machine électrique au couple différentiel, en alternateur, pour recharger les moyens de stockage d'énergie électrique, de manière à fournir le couple requis aux roues.  electrical energy storage means, characterized in that it comprises means for controlling the operation of the heat engine and of the electric machine in order to supply a required torque to the wheels of the vehicle, connected to monitoring means of the particulate filter to trigger a regeneration phase thereof, during which these control means determine an optimal regeneration torque to be delivered by the vehicle's engine, calculate a differential torque value between the required torque and the optimal torque of regeneration and control the heat engine at its optimal regeneration torque and the electric machine with differential torque, as an alternator, to recharge the electrical energy storage means, so as to provide the required torque to the wheels.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels : - la Fig. 1 représente un schéma synoptique illustrant la structure et le fonctionnement d'un système d'aide selon l'invention ; et - la Fig. 2 illustre un changement de point de fonctionnement d'un moteur obtenu grâce à un tel système d'aide.  The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the appended drawings, in which: - FIG. 1 shows a block diagram illustrating the structure and operation of a help system according to the invention; and - Fig. 2 illustrates a change in the operating point of an engine obtained thanks to such a help system.

On a en effet représenté sur cette figure 1, un schéma synoptique illustrant un système d'aide à la régénération d'un filtre à particules intégré dans une ligne d'échappement d'un moteur thermique de véhicule automobile.  FIG. 1 shows a block diagram illustrating a system for assisting the regeneration of a particulate filter integrated in an exhaust line of a thermal engine of a motor vehicle.

Ce moteur thermique est désigné par la référence générale 1 sur la figure 1 et est associé à une machine électrique réversible 2 pouvant fonctionner en moteur ou en alternateur, raccordée à des moyens de stockage d'énergie électrique désignés par la référence générale 3 et constitués par exemple par une batterie d'alimentation du véhicule.  This heat engine is designated by the general reference 1 in FIG. 1 and is associated with a reversible electrical machine 2 which can operate as a motor or as an alternator, connected to electrical energy storage means designated by the general reference 3 and constituted by example by a vehicle supply battery.

Le système comporte en outre des moyens désignés par la référence générale 4 de contrôle du fonctionnement du moteur thermique 1 et de la machine électrique 2 afin de fournir un couple requis C. R aux roues du véhicule.  The system further comprises means designated by the general reference 4 for controlling the operation of the heat engine 1 and the electric machine 2 in order to provide a required torque C. R to the wheels of the vehicle.

Ces moyens de contrôle 4 sont par exemple raccordés à des moyens de surveillance du filtre à particules désignés par la référence générale 5 pour déclencher une phase de régénération de celui-ci.  These control means 4 are for example connected to monitoring means of the particulate filter designated by the general reference 5 to trigger a regeneration phase thereof.

Au cours de cette phase de régénération, les moyens de contrôle 4 déterminent un couple optimal de régénération à délivrer par le moteur thermique  During this regeneration phase, the control means 4 determine an optimal regeneration torque to be delivered by the heat engine

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du véhicule, calculent une valeur de couple différentiel entre le couple requis et le couple optimal de régénération et pilotent le moteur thermique à son couple op- timal de régénération et la machine électrique au couple différentiel, en alternateur, pour recharger les moyens de stockage d'énergie électrique 3, de manière à fournir le couple requis aux roues du véhicule.  of the vehicle, calculate a differential torque value between the required torque and the optimal regeneration torque and control the heat engine at its optimal regeneration torque and the differential torque electric machine, as an alternator, to recharge the storage means of electrical energy 3, so as to provide the required torque to the wheels of the vehicle.

On a en effet constaté que la phase de régénération du filtre, en particulier lorsqu'elle est mise en oeuvre en commandant un système d'alimentation en carburant du moteur pour enclencher une phase d'injections multiples de carburant dans les cylindres de celui-ci pendant leur phase de détente, a un rendement optimum en termes d'augmentation de température et de consommation de carburant dans une zone de fonctionnement du moteur thermique bien définie en couple.  It has in fact been observed that the regeneration phase of the filter, in particular when it is implemented by controlling a fuel supply system of the engine to initiate a phase of multiple injections of fuel into the cylinders thereof during their expansion phase, has optimum efficiency in terms of temperature increase and fuel consumption in an operating area of the heat engine well defined in torque.

Lors de cette phase de régénération, les moyens de contrôle doivent donc amener le point de fonctionnement du moteur thermique dans cette zone favorable et en particulier à un couple optimal de régénération, comme cela est illustré sur la figure 2.  During this regeneration phase, the control means must therefore bring the operating point of the heat engine into this favorable zone and in particular to an optimal regeneration torque, as illustrated in FIG. 2.

Les moyens de contrôle 4 sont donc amenés à déterminer ce couple optimal de régénération qui peut par exemple être fonction du régime de rotation du moteur thermique. Ceci est réalisé par exemple à partir d'informations délivrées par des moyens 6 (Fig. 1) de mesure du régime de rotation du moteur et de moyens de stockage d'une cartographie préétablie de couple optimum de régénération en fonction de ce régime de rotation, ces moyens de stockage étant désignés par la référence générale 7 sur cette figure.  The control means 4 are therefore required to determine this optimal regeneration torque which can for example be a function of the rotation speed of the heat engine. This is done, for example, from information delivered by means 6 (Fig. 1) for measuring the engine rotation speed and means for storing a pre-established map of optimum regeneration torque as a function of this rotation speed. , these storage means being designated by the general reference 7 in this figure.

Les moyens de contrôle 4 calculent alors une valeur de couple différentiel AC entre le couple requis et le couple optimal de régénération et pilotent le moteur thermique 1 à son couple optimal de régénération et la machine électrique 2 au couple différentiel, en alternateur, pour recharger les moyens de stockage d'énergie électrique 3, de manière à fournir le couple requis C. R aux roues du véhicule.  The control means 4 then calculate a differential torque AC value between the required torque and the optimal regeneration torque and control the heat engine 1 at its optimal regeneration torque and the electric machine 2 at the differential torque, in alternator, to recharge the electrical energy storage means 3, so as to provide the required torque C. R to the wheels of the vehicle.

On conçoit en effet que la machine électrique fonctionnant en alternateur, prélève du couple sur le moteur thermique afin que le couple résultant fourni aux roues du véhicule, soit égal au couple requis.  It is in fact understood that the electric machine operating as an alternator draws torque from the heat engine so that the resulting torque supplied to the wheels of the vehicle is equal to the required torque.

Grâce à une telle structure, il est possible d'optimiser en termes d'augmentation de température des gaz d'échappement et de consommation en  Thanks to such a structure, it is possible to optimize in terms of temperature increase of the exhaust gases and consumption in

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carburant, le fonctionnement du moteur thermique pour optimiser la régénération du filtre à particules intégré dans la ligne d'échappement de celui-ci. fuel, the operation of the heat engine to optimize the regeneration of the particulate filter integrated into its exhaust line.

Claims (3)

REVENDICATIONS 1. Système d'aide à la régénération d'un filtre à particules intégré dans une ligne d'échappement d'un moteur thermique (1) de véhicule automobile, ce moteur thermique étant associé à une machine électrique réversible (2) pouvant fonctionner en moteur ou en alternateur, raccordée à des moyens de stockage d'énergie électrique (3), caractérisé en ce qu'il comporte des moyens (4) de contrôle du fonctionnement du moteur thermique (1) et de la machine électrique (2) afin de fournir un couple requis (C. R) aux roues du véhicule, raccordés à des moyens de surveillance (5) du filtre à particules pour déclencher une phase de régénération de celui-ci, durant laquelle ces moyens de contrôle (4) déterminent un couple optimal de régénération à délivrer par le moteur thermique du véhicule, calculent une valeur de couple différentiel entre le couple requis et le couple op- timal de régénération et pilotent le moteur thermique (1) à son couple optimal de régénération et la machine électrique (2) au couple différentiel (AC), en alternateur, pour recharger les moyens de stockage d'énergie électrique (3), de manière à fournir le couple requis aux roues.  CLAIMS 1. System for assisting the regeneration of a particulate filter integrated into an exhaust line of a heat engine (1) of a motor vehicle, this heat engine being associated with a reversible electric machine (2) capable of operating as an engine or alternator, connected to electrical energy storage means (3), characterized in that it comprises means (4) for controlling the operation of the heat engine (1) and the electric machine (2) in order to supply a required torque (C. R) to the wheels of the vehicle, connected to monitoring means (5) of the particulate filter to trigger a regeneration phase thereof, during which these control means (4) determine an optimal regeneration torque to be delivered by the vehicle's heat engine, calculate a differential torque value between the required torque and the optimal regeneration torque and control the heat engine (1) at its torque optimal regeneration and the electric machine (2) with differential torque (AC), as an alternator, for recharging the electrical energy storage means (3), so as to provide the required torque to the wheels. 2. Système selon la revendication 1, caractérisé en ce que les moyens de contrôle (4) sont raccordés à des moyens de mesure (6) du régime de rotation du moteur thermique du véhicule et à des moyens (7) de stockage d'une cartographie préétablie de valeurs de couple optimal de régénération en fonction du régime de rotation du moteur.  2. System according to claim 1, characterized in that the control means (4) are connected to measuring means (6) of the rotation speed of the thermal engine of the vehicle and to means (7) for storing a pre-established mapping of optimal regeneration torque values as a function of the engine rotation speed. 3. Système selon la revendication 1 ou 2, caractérisé en ce que le moteur thermique (1) est relié à des moyens d'alimentation en carburant de celuici et en ce que les moyens de contrôle (4) sont adaptés pour, lors de la phase de régénération, piloter ceux-ci de manière à enclencher une phase d'injections multiples de carburant dans les cylindres du moteur pendant leur phase de détente. 3. System according to claim 1 or 2, characterized in that the heat engine (1) is connected to fuel supply means thereof and in that the control means (4) are adapted for, during the regeneration phase, control these so as to initiate a phase of multiple injections of fuel into the engine cylinders during their expansion phase.
FR0014640A 2000-11-14 2000-11-14 SYSTEM FOR AIDING THE REGENERATION OF A PARTICULATE FILTER INTEGRATED IN AN EXHAUST LINE OF A VEHICLE ENGINE Expired - Lifetime FR2816662B1 (en)

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FR0014640A FR2816662B1 (en) 2000-11-14 2000-11-14 SYSTEM FOR AIDING THE REGENERATION OF A PARTICULATE FILTER INTEGRATED IN AN EXHAUST LINE OF A VEHICLE ENGINE

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006072499A2 (en) * 2004-12-29 2006-07-13 Robert Bosch Gmbh Method for reducing emissions of a motor vehicle by influencing a generator power
WO2008038100A1 (en) * 2006-09-26 2008-04-03 Toyota Jidosha Kabushiki Kaisha Control device for hybrid vehicle and control method therefor
CN103153739A (en) * 2011-01-21 2013-06-12 日野自动车株式会社 Regeneration control device, hybrid automobile, regeneration control method, and program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327992A (en) * 1992-05-28 1994-07-12 Mercedes-Benz Ag Method for controlling a hybrid drive which drives a vehicle
FR2774427A1 (en) * 1998-02-02 1999-08-06 Peugeot System for regenerating a particle filter in a diesel engine exhaust pipe
FR2784626A1 (en) * 1998-10-16 2000-04-21 Renault Hybrid power unit for road vehicle, comprises close-coupled IC engine and electric motor, so controlled as to maintain weak-mixture engine operation with minimal pollution

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327992A (en) * 1992-05-28 1994-07-12 Mercedes-Benz Ag Method for controlling a hybrid drive which drives a vehicle
FR2774427A1 (en) * 1998-02-02 1999-08-06 Peugeot System for regenerating a particle filter in a diesel engine exhaust pipe
FR2784626A1 (en) * 1998-10-16 2000-04-21 Renault Hybrid power unit for road vehicle, comprises close-coupled IC engine and electric motor, so controlled as to maintain weak-mixture engine operation with minimal pollution

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006072499A2 (en) * 2004-12-29 2006-07-13 Robert Bosch Gmbh Method for reducing emissions of a motor vehicle by influencing a generator power
WO2006072499A3 (en) * 2004-12-29 2006-11-16 Bosch Gmbh Robert Method for reducing emissions of a motor vehicle by influencing a generator power
WO2008038100A1 (en) * 2006-09-26 2008-04-03 Toyota Jidosha Kabushiki Kaisha Control device for hybrid vehicle and control method therefor
US8452474B2 (en) 2006-09-26 2013-05-28 Toyota Jidosha Kabushiki Kaisha Control device for hybrid vehicle and control method therefor
CN103153739A (en) * 2011-01-21 2013-06-12 日野自动车株式会社 Regeneration control device, hybrid automobile, regeneration control method, and program

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