EP3478948A1 - Procédé de vérification de la capacité de fonctionnement d'un capteur de particules - Google Patents

Procédé de vérification de la capacité de fonctionnement d'un capteur de particules

Info

Publication number
EP3478948A1
EP3478948A1 EP17712971.5A EP17712971A EP3478948A1 EP 3478948 A1 EP3478948 A1 EP 3478948A1 EP 17712971 A EP17712971 A EP 17712971A EP 3478948 A1 EP3478948 A1 EP 3478948A1
Authority
EP
European Patent Office
Prior art keywords
particulate
sensor
particle
differential pressure
particulate filter
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Withdrawn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
EP17712971.5A
Other languages
German (de)
English (en)
Inventor
Hong Zhang
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP3478948A1 publication Critical patent/EP3478948A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/05—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a particulate sensor
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/14—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics having more than one sensor of one kind
    • 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
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0416—Methods of control or diagnosing using the state of a sensor, e.g. of an exhaust gas sensor
    • 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
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • F01N2900/1406—Exhaust gas pressure
    • 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
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1606—Particle filter loading or soot amount
    • 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

Definitions

  • the present invention relates to a method for checking the functionality of a arranged in an exhaust line of an internal combustion engine particle sensor, in particular a method for checking the plausibility of a signal of a particle sensor of an internal combustion engine.
  • soot sensors that reliably measure the soot content in the exhaust stream of the motor vehicle.
  • the use of such soot sensors is used to measure the currently ejected soot or. Particle quantity, so that the engine management in a motor vehicle in a current driving situation information to come to reduce the emission values with regulatory adjustments.
  • an active exhaust gas purification can be initiated by exhaust gas soot filters or an exhaust gas recirculation system for combustion engine.
  • regenerable filters such as particulate filters, are used which filter and trap a substantial portion of the soot content from the exhaust.
  • Soot sensors are required for the detection of soot in order to monitor the function of the soot filters or to control their regeneration cycles.
  • the soot filter which is also referred to as a diesel particulate filter, a soot sensor before and / or be downstream.
  • the soot or particle sensor upstream of the particulate filter serves to increase system safety and to ensure operation of the particulate filter under optimum conditions. Since this depends to a large extent on the amount of particulates stored in the particulate filter, accurate measurement of the particulate concentration upstream of the particulate filter system, in particular the determination of a high particulate concentration upstream of the particulate filter, is of great importance.
  • a soot or particle sensor arranged downstream of the particle filter offers the possibility of making an on-board diagnosis and also serves to ensure the correct operation of the exhaust gas aftertreatment system.
  • a downstream particulate sensor When a downstream particulate sensor indicates a signal indicative of a predetermined amount of particulate in the exhaust gas downstream of a particulate filter, this may indicate either a defect of the particulate filter or a defect of the particulate sensor. This means that no reliable statement can be made here as to whether the signal from the particle sensor is plausible or not.
  • the invention is essentially based on the idea that the signal of a particle filter is plausibilized by a differential pressure signal of a differential pressure sensor on a particle filter. If the signal of the particulate sensor is in an elevated range, but the differential pressure at the particulate filter is within a predetermined range in which it can be assumed that the particulate filter is operating properly, it can be assumed that the particulate sensor is faulty and consequently the signals of the particulate sensor are invalid. Through a plausibility check of the signal of the
  • Particle sensor using the differential pressure signal on Par ⁇ particle filter can be released a function diagnosis of the particulate filter and then performed. Accordingly, a method of verifying the functionality of a particulate sensor disposed in an exhaust line of an internal combustion engine of a vehicle is disclosed.
  • the internal combustion engine has a particle filter for at least partial trapping of particles or soot in the exhaust gas, a differential pressure sensor for detecting a differential pressure on the particulate filter between a pressure upstream of the particulate filter and a pressure downstream of the particulate filter and a downstream of the particulate filter arranged Parti ⁇ kelsensor, which is adapted to those located in the exhaust to capture the remaining amount of particles.
  • An inventive method includes detecting an amount of particulate in the exhaust gas by the particle sensor, determining that the detected particle germ-tight greater than a predetermined upper amount of particles threshold value, detecting a differential pressure across the particulate filter by means of the differential pressure sensor and a Be ⁇ vote on that the particle sensor is not functional if the detected differential pressure is greater than a predetermined upper pressure threshold.
  • the differential pressure increases proportionally with the load of the particulate filter.
  • a predetermined upper pressure threshold it can be assumed that the particulate filter is operating properly.
  • the method according to the invention is further a burn-free of particles in and / or on the particle sensor, if it is determined that the
  • Particle sensor is not functional, detecting a particle amount in the exhaust gas by the particle sensor after burning of particles in and / or on the particle sensor and determining that the particle sensor is functional again, if the after burning of particles in and / or Particle quantity detected at the particle sensor is smaller than the predetermined upper particle amount threshold value.
  • the particulate sensor is faulty if the amount of particulate detected after particulate burn in and / or at the particulate sensor is greater than is the predetermined upper particulate amount threshold. In this case, it may be concluded that, despite the particulate filter being functioning, the particulate sensor signal continues to indicate an unrealistic value which is within a predetermined range. Thus, the particle sensor can be diagnosed as faulty.
  • the internal combustion engine has a particle filter for at least partial capture of particles in the exhaust gas, a differential pressure sensor for detecting a differential pressure in the particle filter between a pressure. upstream of the particulate filter and a downstream pressure of the particulate filter, and a particulate sensor disposed downstream of the particulate filter configured to detect the residual particulate amount in the exhaust gas.
  • the inventive method according to the second aspect includes detecting a differential pressure at the particle filter by means of the differential pressure sensor, determining that the detected Dif ⁇ ferenz pressure is less than a lower pressure threshold value, detecting an amount of particulate in the exhaust gas by means of the particle kelsensors and determining that the particulate sensor is inoperative when the detected particulate amount is less than a predetermined lower particulate amount threshold.
  • the differential pressure signal of the differential pressure sensor is evaluated. If the lower pressure threshold is exceeded, it can be assumed that the particle filter is working properly. If the detected differential pressure are un ⁇ terrenz the lower pressure threshold, it can be assumed that the particle filter is not working properly and has for example a hole, which is responsible for the pressure drop.
  • the particulate sensor signal is checked to see if it indicates a value exceeding a lower particulate amount threshold or not. If the amount of particulate matter indicated by the Particle Sensor signal remains below the Lower Particle Threshold, it may be assumed that the sensor is faulty and is not operating properly.
  • the expected differential pressure at the particle filter can be calculated. If the differential pressure therefore lies outside, in particular below, an expected pressure range, it can be assumed that the particle filter is at least partially defective.
  • the particle filter ⁇ diagnosis can be released by means of the particle sensor only when a functional particle sensor has been diagnosed.
  • the predetermined upper pressure ⁇ are threshold value and / or the predetermined lower Druckschwel ⁇ lenwert in response to the located in the exhaust system the exhaust gas mass flow and / or the current loading state of the particle filter is predetermined.
  • an air mass flow meter in the intake tract and a charge level meter in the exhaust gas line on the particle filter are provided for this purpose.
  • the exhaust gas mass flow can be calculated by means of the air mass meter via the equation of continuity and the loading state can alternatively be determined by model.
  • the predetermined upper Pumblemen- are oxy-wave value and / or the predetermined lower particle ⁇ amount threshold in response to the located in the exhaust gas mass flow and / or the crude Pellemengen- predetermined mission.
  • the particulate matter emission can either be calculated by a model or recorded by means of a particle sensor.
  • a computer program product comprising a computer readable medium and stored on the computer readable medium program code which, when executed on a control unit, the control unit instructs to execute a fiction, ⁇ due process.
  • an exhaust system for an internal combustion engine which at least partially comprises a particle filter
  • a differential pressure sensor for sensing a differential pressure at the particulate filter between a pressure upstream of the particulate filter and a pressure downstream of the particulate filter, a particle sensor disposed downstream of the particulate filter for detecting the residual particulate matter in the exhaust gas, and a control unit configured to receive the signals of the differential pressure sensor and the particulate sensor and a method of checking the functionality of the particulate sensor according to the invention Execute procedure.
  • the link between the sensor signal and the parameter value can take place by means of a suitable algorithm and / or a look-up table. It should be expressly stated at this point that the methods described herein can be carried out both directly by means of the sensor signals or by means of the respective associated parameter values.
  • Fig. 1 shows a schematic flow diagram of a first embodiment of a method according to the invention
  • Fig. 2 is a schematic flow diagram of a second
  • Embodiment of a method according to the invention shows.
  • the flow charts shown in FIGS. 1 and 2 relate to a method for checking the functionality of a in an exhaust line of an internal combustion engine of a Vehicle arranged particle sensor.
  • the internal combustion engine for example a diesel engine, has a particle filter, such as.
  • a particle filter such as.
  • a differential pressure sensor for detecting a differential pressure on the particulate filter between a pressure upstream of the particulate filter and a pressure downstream of Parti ⁇ kelfilters and a downstream of the particulate filter ange ⁇ arranged particle sensor , which is adapted to detect the residual amount of particulate matter in the exhaust gas.
  • the method according to the Fig. 1 starts at step 100 and passes then to step 102 at which an amount of particles is detected in the exhaust gas by means of the Parti ⁇ kelsensors.
  • the particle sensor generates a signal which indicates a corresponding value of the residual amount of particulates in the exhaust gas.
  • the subsequent step 104 it is queried whether the detected amount of particulates is greater than a predetermined upper particulate amount threshold. This means that the signal outputted from the angle sensor indicates a Parti ⁇ for the present operating state of the internal combustion engine at high Pumblemen ⁇ equivalent value.
  • step 104 If the detected Parti ⁇ kelmenge is determined at the step 104 is smaller than the predetermined upper particulate amount is ⁇ threshold value, the process moves to step 130 and is ended. However, if it is determined in step 104 that the detected particulate amount is greater than a predetermined upper particulate amount threshold, the method continues with step 106.
  • a differential pressure is detected at the particulate filter by means of the differential pressure sensor. This detected differential pressure value is evaluated at the subsequent step 108. If it is determined at step 108 that the sensed differential pressure is less than a predetermined upper pressure threshold, the method proceeds to step 112 where it is determined that the particulate sensor is functional and operating properly. In a subsequent step 120, a diagnosis of the particulate filter by means of the can then be performed as valid diagnos ⁇ ti extenten signal of the particle sensor. The method then terminates at step 130.
  • step 122 the particulate sensor is burned free of particles. This can be done, for example, by heating a heater arranged in and / or on the particle sensor to a temperature of, for example, above 600 ° C., thereby free-burning all the particles adhering to the particle sensor. Al ⁇ ternatively or additionally, the burning of the particles in and / or on the particle sensor can be carried out by a regeneration process of the particulate filter.
  • a particle quantity in the exhaust gas is again detected by means of the particle sensor, which is evaluated in the subsequent step 126.
  • step 126 If it is determined at step 126 that the particle sensor is functional again, d. That is, that the particle quantity detected after burning off particles in and / or at the particle sensor is smaller than the predetermined upper particle amount threshold value, the method arrives at step 112 and the particle sensor is again recognized as being functional. Here, the process again proceeds to the above-described step 120 and ends at step 130.
  • step 126 determines whether the particle sensor is not functional, ie that the particles detected after the particles have burned out in and / or at the particle sensor are not functional. germ-tight still greater than the predetermined upper Parti ⁇ is kelmengenschwellenwert, the process moves to step 128 and the particle sensor is diagnosed as non-functional. At this point, no diagnosis of the particulate filter may or should be carried out with the aid of the particulate sensor, for which reason the method according to FIG. 1 is terminated after step 128 in step 130. In this case, the step 120 is not performed because the signal of the particulate sensor is not valid.
  • FIG. 2 shows a second embodiment of a method according to the invention.
  • the method according to FIG. 2 starts at step 200 and then arrives at step 202, at which a differential pressure at step 202.
  • Particle filter is detected by means of the differential pressure sensor, which is evaluated in the subsequent step 204.
  • step 204 If it is determined at step 204 that the sensed differential pressure is greater than a lower pressure threshold, it can be concluded that the particulate filter is operating properly. Conversely, the particulate filter may be diagnosed as defective if the sensed differential pressure is less than the lower pressure threshold. As a result, the process proceeds to step 230 and is terminated when the detected differential pressure is greater than the lower pressure threshold.
  • step 204 If it is determined in step 204 that the detected differential pressure is less than a lower pressure threshold, which indicates that the particulate filter has a defect, such as a larger than average hole, the process proceeds to step 206 where a particulate amount is detected by the particulate sensor which is evaluated at the subsequent step 208.
  • step 208 If it is determined in step 208 that the particle sensor is functional, that is to say that the detected particle quantity is greater than a predetermined lower particle quantity threshold. is lenwert, the process goes to step 212 and the particle sensor is diagnosed as functional.
  • the diagnostic procedure of the particulate filter already described in relation to the method step 120 of FIG. 1 can be carried out, which is terminated in the subsequent step 230.
  • step 208 If it is determined at step 208 that the Parti ⁇ angle sensor is not operational, that is, that the detected amount of particles is smaller than the predetermined lower particle ⁇ amount threshold, the method moves to step 214 and particle sensor as ⁇ nosti extend not functional diag. For this reason, the diagnostic method of the particle sensor may or should not be carried out according to method step 120, for which reason the method is already ended at step 230 at this point.
  • the inventive method a diagnosis of the particulate filter, which is advantageously carried out by means of a particle sensor, the function ⁇ onstgetkeit of the particle sensor is checked before performing.
  • the differential pressure signal of the differential pressure sensor is not sufficiently accurate for the diagnosis of the particulate filter, it can be sufficient for the diagnosis of the functionality of the particulate sensor.

Abstract

L'invention concerne un procédé de vérification de la capacité de fonctionnement d'un capteur de particules disposé dans la ligne d'échappement d'un moteur à combustion interne d'un véhicule. Le moteur à combustion interne présente un filtre à particules pour piéger au moins en partie des particules dans des gaz d'échappement, un capteur de pression différentielle pour détecter une pression différentielle sur le filtre à particules, entre une pression en amont du filtre à particules et une pression en aval du filtre à particules, ainsi qu'un capteur de particules disposé en aval du filtre à particules, ledit capteur de particules étant conçu de manière à détecter la quantité de particules résiduelles se trouvant dans les gaz d'échappement. Le procédé selon l'invention comprend les étapes suivantes : détecter une quantité de particules dans les gaz d'échappement au moyen du capteur de particules, déterminer que la quantité de particules détectée est supérieure à une valeur seuil prédéfinie de quantité de particules, détecter une pression différentielle sur le filtre à particules au moyen du capteur de pression différentielle et déterminer que le capteur de particules n'est pas opérationnel si la pression différentielle détectée est supérieure à une valeur seuil de pression supérieure prédéfini.
EP17712971.5A 2016-06-29 2017-03-22 Procédé de vérification de la capacité de fonctionnement d'un capteur de particules Withdrawn EP3478948A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016211712.2A DE102016211712B4 (de) 2016-06-29 2016-06-29 Verfahren zum Überprüfen der Funktionstüchtigkeit eines Partikelsensors
PCT/EP2017/056804 WO2018001580A1 (fr) 2016-06-29 2017-03-22 Procédé de vérification de la capacité de fonctionnement d'un capteur de particules

Publications (1)

Publication Number Publication Date
EP3478948A1 true EP3478948A1 (fr) 2019-05-08

Family

ID=58401566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17712971.5A Withdrawn EP3478948A1 (fr) 2016-06-29 2017-03-22 Procédé de vérification de la capacité de fonctionnement d'un capteur de particules

Country Status (4)

Country Link
US (1) US20190323408A1 (fr)
EP (1) EP3478948A1 (fr)
DE (1) DE102016211712B4 (fr)
WO (1) WO2018001580A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017211575B4 (de) * 2017-07-06 2019-07-04 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose eines Differenzdrucksensors eines Partikelfilters
CN109653851A (zh) * 2018-12-27 2019-04-19 凯龙高科技股份有限公司 一种被动再生dpf监控系统智能识别系统及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1914536A1 (fr) 2006-10-17 2008-04-23 Ibiden Co., Ltd. Capteur de matière particulaire
DE602006005936D1 (de) 2006-10-17 2009-05-07 Ibiden Co Ltd Abgasreinigungsvorrichtung und entsprechendes Verfahren sowie ein Verfahren zur Messung der Partikel
EP1914537A1 (fr) 2006-10-17 2008-04-23 Ibiden Co., Ltd. Capteur de matière particulaire
WO2011036772A1 (fr) 2009-09-25 2011-03-31 イビデン株式会社 Capteur de particules fines et dispositif d'épuration des gaz d'échappement
FR2954952B1 (fr) 2010-01-04 2012-02-03 Peugeot Citroen Automobiles Sa Procede de diagnostic fonctionnel d'un capteur de suie
DE112013003836B4 (de) * 2012-08-30 2018-05-30 Scania Cv Ab Verfahren und System zum Feststellen einer Sensorfunktion für einen PM-Sensor
CN105829670B (zh) * 2013-12-19 2018-07-24 丰田自动车株式会社 内燃机的排气净化系统
JP6358101B2 (ja) 2015-01-13 2018-07-18 株式会社デンソー 異常診断装置

Also Published As

Publication number Publication date
DE102016211712B4 (de) 2018-07-26
US20190323408A1 (en) 2019-10-24
WO2018001580A1 (fr) 2018-01-04
DE102016211712A1 (de) 2018-01-04

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