FR2930282A3 - Nitrogen oxides emissions exhaust treating method for internal combustion engine of e.g. automobile, involves adjusting engine power to ammonia precursor level and distance traveled to urea station to reduce nitrogen oxide emission - Google Patents

Nitrogen oxides emissions exhaust treating method for internal combustion engine of e.g. automobile, involves adjusting engine power to ammonia precursor level and distance traveled to urea station to reduce nitrogen oxide emission Download PDF

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Publication number
FR2930282A3
FR2930282A3 FR0852629A FR0852629A FR2930282A3 FR 2930282 A3 FR2930282 A3 FR 2930282A3 FR 0852629 A FR0852629 A FR 0852629A FR 0852629 A FR0852629 A FR 0852629A FR 2930282 A3 FR2930282 A3 FR 2930282A3
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FR
France
Prior art keywords
ammonia
precursor
station
nearest
level
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Withdrawn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
FR0852629A
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French (fr)
Inventor
Michael Remingol
Juliette Beaulieu
Elie Fula
Lahore Noel Moreno
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.)
Renault SAS
Original Assignee
Renault SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR0852629A priority Critical patent/FR2930282A3/en
Publication of FR2930282A3 publication Critical patent/FR2930282A3/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • B60W2554/00—Input parameters relating to objects
    • 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
    • B60W2556/00—Input parameters relating to data
    • B60W2556/45—External transmission of data to or from the vehicle
    • B60W2556/50—External transmission of data to or from the vehicle for navigation systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
    • F01N2900/1806—Properties of reducing agent or dosing system
    • F01N2900/1814—Tank level
    • 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
    • F02D2200/70—Input parameters for engine control said parameters being related to the vehicle exterior
    • F02D2200/701—Information about vehicle position, e.g. from navigation system or GPS signal
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02T10/12—Improving ICE efficiencies

Abstract

The method involves measuring a level of an ammonia reservoir or ammonia precursor, and determining localization of an ammonia station or ammonia precursor closest to a vehicle. A distance traveled by the vehicle to a nearest station is determined. Power of an internal combustion engine is adjusted to the level of ammonia or the ammonia precursor in the reservoir and the distance traveled to the urea station in a nearest way to reduce emissions of nitrogen oxide.

Description

1 PROCEDE DE TRAITEMENT A L'ECHAPPEMENT DES EMISSIONS DE NOx D'UN MOTEUR A COMBUSTION INTERNE DESCRIPTION L'invention concerne un procédé de traitement à l'échappement des émissions de NOx d'un moteur à combustion interne utilisant un catalyseur de réduction catalytique sélective dans lequel on injecte de l'ammoniaque (ou un précurseur de l'ammoniaque) en amont du catalyseur. On connait déjà (FR 2 865 767) un procédé de régénération d'une installation de traitement aval des gaz d'échappement. Selon ce procédé, une installation de commande pour commander les cycles de régénération d'un filtre à particules reçoit des données d'informations concernant le trajet de conduite et on commande les cycles de régénération en tenant compte des données d'information. Toutefois, ce procédé n'utilise pas d'urée pour nettoyer les émissions polluantes. Son efficacité est donc imparfaite. La présente invention a pour objet un procédé qui surmonte les inconvénients de l'art antérieur, et en particulier un procédé dans lequel l'utilisation de l'information niveau réservoir d'urée permet d'adapter la conduite du véhicule sur une durée ou sur une distance bien spécifiée, sans perte de puissance moteur jusqu'au prochain remplissage du réservoir d'ammoniaque ou d'un précurseur de l'ammoniaque tel que l'urée. Ces buts sont atteints conformément à l'invention par le fait que : - on mesure le niveau d'ammoniaque ou d'un précurseur de l'ammoniaque dans le réservoir ; 2 - on détermine la localisation de la station d'ammoniaque ou d'un précurseur de l'ammoniaque la plus proche du véhicule ; - on détermine la distance et le trajet à 5 parcourir par le véhicule jusqu'à cette station la plus proche ; - - on informe le conducteur de l'existence de la station la plus proche et du trajet y menant ; - on règle la puissance du moteur en fonction 10 du niveau d'ammoniaque ou d'un précurseur de l'ammoniaque dans le réservoir et de la distance à parcourir jusqu'à la station d'urée la plus proche, de manière à réduire les émissions d'oxyde d'azote. Grâce à ces caractéristiques, on peut éviter 15 d'avoir recours à des contre-mesures réglementairement obligatoires telles que la limitation de la puissance moteur, voire même le blocage du véhicule. De préférence, on délivre un message au conducteur l'incitant à se ravitailler en ammoniaque ou 20 en précurseur de l'ammoniaque à la station déterminée comme la plus proche dès que le niveau d'ammoniaque ou d'un précurseur de l'ammoniaque dans le réservoir baisse en-dessous d'un seuil déterminé. Dans une réalisation particulière, on détermine 25 la distance à la station d'ammoniaque ou d'un précurseur de l'ammoniaque la plus proche au moyen d'un système GPS ou d'un système télématique. Avantageusement, le système GPS communique avec un système habitacle d'une part, avec un système de 30 contrôle de réduction catalytique sélective d'autre part, par des trames transportés par un bus. Le bus est avantageusement choisi dans le groupe comprenant les bus CAN, Flexray et Lin et tout autre réseau permettant la communication entre 35 calculateurs embarqués dans l'automobile.The invention relates to a process for the exhaust treatment of NOx emissions from an internal combustion engine using a catalytic selective reduction catalyst. in which ammonia (or a precursor of ammonia) is injected upstream of the catalyst. Already known (FR 2 865 767) a regeneration process of an exhaust gas treatment plant. According to this method, a control facility for controlling the regeneration cycles of a particulate filter receives information data relating to the driving path and the regeneration cycles are controlled taking into account the information data. However, this process does not use urea to clean pollutant emissions. Its effectiveness is therefore imperfect. The subject of the present invention is a method which overcomes the disadvantages of the prior art, and in particular a method in which the use of the urea reservoir level information makes it possible to adapt the driving of the vehicle over a period of time or over a period of time. a specified distance, without loss of engine power until the next filling of the ammonia tank or a precursor of ammonia such as urea. These objects are achieved according to the invention in that: - the level of ammonia or a precursor of ammonia in the reservoir is measured; 2 - the location of the ammonia station or an ammonia precursor closest to the vehicle is determined; the distance and the path to be traveled by the vehicle are determined to this nearest station; - - the driver is informed of the existence of the nearest station and the route leading to it; the engine power is adjusted according to the level of ammonia or ammonia precursor in the tank and the distance to the nearest urea station so as to reduce the nitrogen oxide emissions. Thanks to these characteristics, it is possible to avoid the use of countermeasures that are legally required, such as the limitation of the engine power or even the blocking of the vehicle. Preferably, a message is delivered to the driver urging him to refuel in ammonia or precursor ammonia at the station determined as the nearest as soon as the level of ammonia or a precursor of ammonia in the reservoir falls below a certain threshold. In a particular embodiment, the distance to the ammonia station or a precursor of the nearest ammonia is determined by means of a GPS system or a telematic system. Advantageously, the GPS system communicates with a passenger compartment system, on the one hand, with a selective catalytic reduction control system, on the other hand, by frames transported by a bus. The bus is advantageously chosen from the group comprising CAN, Flexray and Lin buses and any other network allowing communication between 35 on-board computers in the automobile.

3 D'autres caractéristiques et avantages de la présente invention ressortiront à la lecture de la description de la figure unique sur laquelle on a représenté des trames CAN, de la position de la station d'urée et du niveau du réservoir d'un précurseur de l'ammoniaque qui est l'urée dans l'exemple décrit. Sur la figure unique on a représenté une symbolisation des échanges d'information entre le système GPS d'une part, le système habitacle et le système de contrôle de réduction catalytique sélective d'autre part. Ces systèmes communiquent entre eux par un réseau CAN proche d'un réseau internet. Ils s'envoient des informations par des trames. Ces trames sont la réalisation informatique de l'échange d'informations. La solution mise en oeuvre dans l'invention offre de nombreux avantages notamment : - une mise à disposition du conducteur d'une évaluation précise de la quantité d'urée restant dans 20 le réservoir ; - une mise à disposition du conducteur d'une évaluation précise de la distance à parcourir jusqu'au prochain remplissage du réservoir d'urée; - une mise à disposition du conducteur d'une 25 distance et d'une proposition de trajet vers une station où réaliser le remplissage de l'ammoniaque ou du précurseur de l'ammoniaque ; - une prolongation de l'autonomie du véhicule par limitation de la consommation d'ammoniaque ou du 30 précurseur de l'ammoniaque lorsque la quantité d'ammoniaque ou de précurseur d'ammoniaque contenu dans le réservoir est inférieure à un seuil. Other features and advantages of the present invention will be apparent from the description of the single figure on which CAN frames, the position of the urea station and the reservoir level of a precursor of FIG. ammonia which is urea in the example described. In the single figure there is shown a symbolization of information exchange between the GPS system on the one hand, the passenger compartment system and the selective catalytic reduction control system on the other. These systems communicate with each other via a CAN network close to an Internet network. They send each other information by frames. These frames are the computer realization of the exchange of information. The solution implemented in the invention offers numerous advantages, in particular: providing the driver with a precise evaluation of the quantity of urea remaining in the tank; - Providing the driver with an accurate assessment of the distance to be traveled until the next filling of the urea tank; providing the driver with a distance and a proposal for a journey to a station where the filling of the ammonia or the precursor of the ammonia is carried out; an extension of the autonomy of the vehicle by limiting the consumption of ammonia or the precursor of ammonia when the amount of ammonia or ammonia precursor contained in the reservoir is below a threshold.

Claims (5)

REVENDICATIONS1. Procédé de traitement à l'échappement des émissions de NOx d'un moteur à combustion interne utilisant un catalyseur de réduction catalytique sélective dans lequel on injecte de l'ammoniaque ou un précurseur de l'ammoniaque en amont du catalyseur, caractérisé en ce que : - on mesure le niveau d'un réservoir d'ammoniaque ou d'un précurseur de l'ammoniaque ; - on détermine la localisation de la station d'ammoniaque ou d'un précurseur de l'ammoniaque la plus proche du véhicule ; - on détermine la distance à parcourir par le véhicule jusqu'à cette station la plus proche ; - on règle la puissance du moteur en fonction du niveau d'ammoniaque ou d'un précurseur de l'ammoniaque dans le réservoir et de la distance à 20 parcourir jusqu'à la station d'urée la plus proche de manière à réduire les émissions d'oxyde d'azote. REVENDICATIONS1. Process for the exhaust treatment of NOx emissions from an internal combustion engine using a selective catalytic reduction catalyst in which ammonia or an ammonia precursor is injected upstream of the catalyst, characterized in that: - the level of a tank of ammonia or a precursor of ammonia is measured; the location of the ammonia station or of an ammonia precursor closest to the vehicle is determined; the distance to be traveled by the vehicle to this nearest station is determined; the engine power is adjusted according to the level of ammonia or precursor of the ammonia in the tank and the distance to be traveled to the nearest urea station so as to reduce emissions nitrogen oxide. 2. Procédé selon la revendication 1, caractérisé en ce que l'on délivre un message au 25 conducteur l'incitant à se ravitailler en ammoniaque ou en précurseur de l'ammoniaque à la station déterminée comme la plus proche dès que le niveau d'ammoniaque ou d'un précurseur de l'ammoniaque dans le réservoir baisse en-dessous d'un seuil déterminé. 30 2. Method according to claim 1, characterized in that a message is delivered to the driver urging him to refuel ammonia or precursor ammonia at the station determined as the nearest as soon as the level of ammonia or a precursor of ammonia in the reservoir drops below a certain threshold. 30 3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on détermine la distance à la station d'ammoniaque ou d'un précurseur de l'ammoniaque 15la plus proche au moyen d'un système GPS ou d'un système télématique. 3. Method according to claim 1 or 2, characterized in that the distance to the station of ammonia or a precursor of the nearest ammonia 15 is determined by means of a GPS system or a system telematics. 4. Procédé selon la revendication 3, caractérisé en ce que le système GPS communique avec un système d'habitacle d'une part, avec un système de contrôle de réduction catalytique sélective par des trames transportées par un bus, d'autre part. 4. Method according to claim 3, characterized in that the GPS system communicates with a passenger compartment system on the one hand, with a selective catalytic reduction control system by frames carried by a bus, on the other hand. 5. Procédé selon la revendication 4, caractérisé en ce que le bus est choisi dans le groupe comprenant les bus CAN, Flexray et Lin et tout autre réseau permettant la communication entre calculateurs embarqués dans l'automobile.15 5. Method according to claim 4, characterized in that the bus is selected from the group comprising CAN bus, Flexray and Lin and any other network for communication between on-board computers in the automobile.
FR0852629A 2008-04-18 2008-04-18 Nitrogen oxides emissions exhaust treating method for internal combustion engine of e.g. automobile, involves adjusting engine power to ammonia precursor level and distance traveled to urea station to reduce nitrogen oxide emission Withdrawn FR2930282A3 (en)

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FR0852629A FR2930282A3 (en) 2008-04-18 2008-04-18 Nitrogen oxides emissions exhaust treating method for internal combustion engine of e.g. automobile, involves adjusting engine power to ammonia precursor level and distance traveled to urea station to reduce nitrogen oxide emission

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FR0852629A FR2930282A3 (en) 2008-04-18 2008-04-18 Nitrogen oxides emissions exhaust treating method for internal combustion engine of e.g. automobile, involves adjusting engine power to ammonia precursor level and distance traveled to urea station to reduce nitrogen oxide emission

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2961558A1 (en) * 2010-06-22 2011-12-23 Peugeot Citroen Automobiles Sa METHOD FOR ADAPTING THE ADJUSTMENTS OF AN ENGINE ON THE CONSUMPTION OF NITROGEN OXIDE REDUCING AGENT
EP2857591A1 (en) * 2013-10-03 2015-04-08 Hitachi Construction Machinery Co., Ltd. Torque reduction of an internal combustion engine in case of low level of urea in a work vehicle with selective catalyst reduction
FR3036732A1 (en) * 2015-06-01 2016-12-02 Peugeot Citroen Automobiles Sa NOX DEPOLLUTION CONTROL METHOD IN ACCORDANCE WITH THE LOCATION OF A VEHICLE
EP3015331A4 (en) * 2015-10-05 2017-04-12 Komatsu Ltd. Work vehicle and work vehicle control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865767A1 (en) * 2004-02-02 2005-08-05 Bosch Gmbh Robert METHOD FOR REGENERATING AN EXHAUST GAS TREATMENT FACILITY
US20060184307A1 (en) * 2005-02-17 2006-08-17 Denso Corporation Travel assist system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865767A1 (en) * 2004-02-02 2005-08-05 Bosch Gmbh Robert METHOD FOR REGENERATING AN EXHAUST GAS TREATMENT FACILITY
US20060184307A1 (en) * 2005-02-17 2006-08-17 Denso Corporation Travel assist system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2961558A1 (en) * 2010-06-22 2011-12-23 Peugeot Citroen Automobiles Sa METHOD FOR ADAPTING THE ADJUSTMENTS OF AN ENGINE ON THE CONSUMPTION OF NITROGEN OXIDE REDUCING AGENT
WO2011161351A2 (en) 2010-06-22 2011-12-29 Peugeot Citroën Automobiles SA Method for adapting the settings of an engine on the basis of the consumption of a nitrogen-oxide reducing agent
WO2011161351A3 (en) * 2010-06-22 2012-04-19 Peugeot Citroën Automobiles SA Method for adapting the settings of an engine on the basis of the consumption of a nitrogen-oxide reducing agent
EP2857591A1 (en) * 2013-10-03 2015-04-08 Hitachi Construction Machinery Co., Ltd. Torque reduction of an internal combustion engine in case of low level of urea in a work vehicle with selective catalyst reduction
US9617716B2 (en) 2013-10-03 2017-04-11 Kcm Corporation Work vehicle
FR3036732A1 (en) * 2015-06-01 2016-12-02 Peugeot Citroen Automobiles Sa NOX DEPOLLUTION CONTROL METHOD IN ACCORDANCE WITH THE LOCATION OF A VEHICLE
EP3015331A4 (en) * 2015-10-05 2017-04-12 Komatsu Ltd. Work vehicle and work vehicle control method
US9677250B2 (en) 2015-10-05 2017-06-13 Komatsu Ltd. Work vehicle and method of controlling work vehicle

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