WO2006119519A1 - Dispositif et procede pour mesurer les gaz d'echappement d'automobiles en depassement - Google Patents

Dispositif et procede pour mesurer les gaz d'echappement d'automobiles en depassement Download PDF

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Publication number
WO2006119519A1
WO2006119519A1 PCT/AT2006/000185 AT2006000185W WO2006119519A1 WO 2006119519 A1 WO2006119519 A1 WO 2006119519A1 AT 2006000185 W AT2006000185 W AT 2006000185W WO 2006119519 A1 WO2006119519 A1 WO 2006119519A1
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WO
WIPO (PCT)
Prior art keywords
exhaust gas
measuring
exhaust
cloud
motor vehicle
Prior art date
Application number
PCT/AT2006/000185
Other languages
German (de)
English (en)
Inventor
Ernst Pucher
Original Assignee
Ernst Pucher
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 Ernst Pucher filed Critical Ernst Pucher
Priority to DE112006000945T priority Critical patent/DE112006000945A5/de
Publication of WO2006119519A1 publication Critical patent/WO2006119519A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
    • G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N1/2252—Sampling from a flowing stream of gas in a vehicle exhaust
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices

Definitions

  • the invention relates to a device and a method for measuring exhaust gas constituents in the exhaust gas cloud of motor vehicles passing by a measuring device.
  • a number of different measuring methods are known for the measurement of exhaust gases on motor vehicles (cars and trucks), some of which are prescribed for certain certification procedures of vehicles.
  • car certification for example, roller test bench tests are known in which the vehicle is driven several kilometers as in reality.
  • the test also includes cold starts, whereby the exhaust gas components CO 2 , CO, HC, NO x and particles are measured and the result is reported in g / km, for example.
  • only individual vehicles are measured on the chassis dynamometer.
  • Another exhaust measurement method that the present application is concerned with is roadside testing in road traffic, whereby a large number of vehicles in real traffic can be measured within a short time.
  • Known methods work according to the RSD measuring principle (Remote Sensing Detection).
  • an optical measuring device is used for remote flue measurement, which consists essentially of a radiation source, a radiation receiver, and any mirror elements for deflecting the excitation and / or measuring radiation.
  • the measuring radiation is transmitted through the exhaust gas cloud through the individual exhaust gas constituents in different wavelength ranges. weakened or absorbed, so that from the intensity changes in the measuring radiation at least indirectly by means of correlation methods on the shares of the exhaust gas components can be closed relative to each other.
  • the measuring system further comprises an imaging unit for determining the license plate, as well as light barriers or induction loops for determining the speed and acceleration of the vehicle.
  • a broadband IR light beam is used as the radiation source.
  • a first wavelength of the IR excitation radiation is absorbed by CO 2 .
  • a second wavelength of the excitation radiation a second exhaust gas component, for example HC, CO or NO x is measured, and the measured value based on the measured value of the CO 2 measurement by forming the quotient.
  • the measuring system of WO 98/37405 A1 has a video camera, which is connected to the evaluation device and serves to identify the vehicle that passes the measuring beam.
  • a similar video system is known in a device for measuring exhaust gas from US 2004/0104345 A1.
  • the object of the invention is to develop a device and a method for measuring exhaust gas constituents in the exhaust gas cloud of motor vehicles passing by a measuring device. avoid driving and allows a direct measurement of the volume or weight fractions of certain exhaust gas components or the opacity (Abgastrübung) in the exhaust gas cloud.
  • the device should be able to be used without problems even on roads with multiple lanes and in the most common types of vehicles and exhaust assemblies, as well as affect the flow of traffic as little as possible.
  • This object is achieved in that at the edge of the road, in the region of the road surface, or above the roadway at least one exhaust probe is mounted, that directly from the exhaust plume of the vehicle, a gas sample is taken, that the volume or weight fraction of at least one exhaust gas component of Exhaust gas sample and / or the opacity of the exhaust gas sample is measured and assigned to each passing the measuring device motor vehicle. If, in addition, the dilution of the exhaust gas cloud with the ambient air has to be considered, the lambda air ratio of the exhaust gas sample can be measured and from this the degree of dilution of the exhaust gas sample can be calculated.
  • the method according to the invention thus offers the advantage that the individual exhaust gas constituents are immediately identified as volume or weight fraction or as turbidity coefficient and not as a percentage in relation to an assumed CO 2 content of the exhaust gas cloud.
  • the exhaust gas sample is pumped by a pump.
  • Suction device of the analyzer transported into the meter, the term of the sample from the probe input to the meter is known and a clear assignment to the respective passing vehicle is possible by a corresponding temporal correction.
  • the passing of a vehicle is detected optically, electronically, acoustically or by means of video image processing, wherein the signal derived therefrom can be used for controlling the sampling and / or for the assignment of the measurement results to the respective motor vehicle and for determining the vehicle speed and acceleration.
  • the motor vehicle imaging preferably detected by a video system
  • the image signal is assigned to the measurement signal of the at least one exhaust gas component of the opacity or the lambda value.
  • the video signal can be subjected to a video analysis and from the driving speed and / or the change of the driving speed of the motor vehicle (acceleration or deceleration), as well as the vehicle type (car, truck, bus, etc.) can be determined.
  • the extent of the exhaust gas cloud of the vehicle can be detected with a preferably multi-dimensional thermal imaging system and from this the exhaust gas quantity emitted per unit of time can be determined. Furthermore, it is possible to determine a signal for the automatic positioning of the exhaust gas probe from the expansion of the exhaust gas cloud. For example, an exhaust gas probe arranged at the edge of the road can be automatically readjusted in height such that the exhaust gas flag of passing trucks is optimally detected.
  • Figure 1 is a schematic representation of a device according to the invention for measuring exhaust gas components in the exhaust gas cloud of a motor vehicle.
  • Fig. 2 is a detail of Figure 1 in an enlarged view.
  • Fig. 3 is an exhaust probe of the device of FIG. 1 in an alternative embodiment. - 3 -
  • the device shown in Fig. 1 for measuring exhaust gas components in the exhaust 2 of a motor vehicle 2, which passes the measuring device 3, has an analysis device 4, with which the volume or weight fraction of one or more exhaust gas components, as well as the opacity (Abgastrübung) determined can be. Furthermore, the analysis device 4 may have a device for determining the air ratio lambda of the exhaust gas sample in order to take into account the dilution of the exhaust gas sample with ambient air.
  • exhaust gas probes 8, 8 ' are provided in the region of the road surface 5 per lane 6a, 6b of a multi-lane road 7, which are in communication with the analysis device 4 via exhaust pipes 9, 9 "
  • the exhaust gas probe 8, which is realized for example by an open end of the hose, can be sucked directly from the exhaust gas cloud 1 via a suction device in the analysis device 4 and fed to the electro-optical or electrochemical sensors in the analysis device an evaluation and display unit 10 (measuring computer) provided in the measuring device 3.
  • the measuring device 3 furthermore has an imaging system 11, for example a video system, whose video signal can be used to identify the vehicle 1, to determine the vehicle speed and the vehicle acceleration, but also to control the sampling.
  • an imaging system 11 for example a video system, whose video signal can be used to identify the vehicle 1, to determine the vehicle speed and the vehicle acceleration, but also to control the sampling.
  • the respective exhaust gas line 9 or 9 'for activating the exhaust gas probe 8 or 8' can be unlocked.
  • the measuring device 3 may comprise a multi-dimensional thermal imaging system 12 with which the extent of the exhaust gas cloud 1 can be measured in order to be able to calculate absolute quantities of the individual exhaust gas components.
  • an optical, electronic or acoustic sensor is characterized (for example, light barrier, temperature sensor or microphone), with which on the one hand the passage of a motor vehicle 1 can be detected to generate control commands for the measuring device 3 or - when using a temperature sensor - statements about the operating state of the engine of the motor vehicle 1 can be obtained.
  • FIG. 2 shows an enlarged sectional view according to line H-II of the exhaust gas probe 8 in the region of the roadway 6a, from which it can be seen that the exhaust pipes 9, 9 'can be laid on the roadway surface 5 by means of ramps 14 arranged on both sides.
  • the actual probe 8 can as short piece of hose 15 or be formed as an opening in the exhaust pipe 9. Furthermore, it is possible to engage the exhaust gas probes 8, 8 1 and the exhaust pipes 9, 9 'in the roadway 5. An overhead arrangement for detecting the exhaust gas from high exhaust systems is also possible.
  • the exhaust gas probe 8 " is arranged in the region of the roadway edge 16, wherein the probe 8" is fastened to a stand 17 and can be displaced vertically.
  • the extent of the exhaust gas cloud 1 can be detected with the thermal imaging system 12 and from this a signal for the automatic height positioning of the exhaust gas probe 8 "can be determined.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de mesurer des composantes de gaz d'échappement dans le nuage de gaz d'échappement (1) d'automobiles en train de passer devant un dispositif de mesure (3). Selon l'invention, il est prévu un dispositif d'analyse (4) pour déterminer la part volumique ou pondérale d'au moins un constituant de gaz d'échappement ou l'opacité. Ledit dispositif d'analyse communique avec une sonde pour gaz d'échappement (8, 8', 8'') pour prélever un échantillon de gaz d'échappement directement dans le nuage de gaz d'échappement (1), qui est disposée sur le bord de la voie de circulation (16), dans la zone de la surface de la voie de circulation (5) ou au-dessus de la voie de circulation. Le dispositif d'analyse (4) présente des capteurs électroacoustiques ou électrochimiques, qui servent à mesurer la part volumique ou pondérale d'au moins un constituant de gaz d'échappement du groupe comprenant CO2, CO, HC, NOX, NO, NO2 et des particules de noir de carbone, ainsi qu'à mesurer la turbidité de gaz d'échappement. En outre, le dispositif d'analyse (4) peut comporter un dispositif pour déterminer le rapport air lambda de l'échantillon de gaz d'échappement.
PCT/AT2006/000185 2005-05-06 2006-05-04 Dispositif et procede pour mesurer les gaz d'echappement d'automobiles en depassement WO2006119519A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006000945T DE112006000945A5 (de) 2005-05-06 2006-05-04 Vorrichtung und Verfahren zur Abgasmessung an vorbeifahrenden Kraftfahrzeugen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA777/2005 2005-05-06
AT7772005A AT501279B8 (de) 2005-05-06 2005-05-06 Vorrichtung und verfahren zur abgasmessung an vorbeifahrenden kraftfahrzeugen

Publications (1)

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WO2006119519A1 true WO2006119519A1 (fr) 2006-11-16

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AT (1) AT501279B8 (fr)
DE (1) DE112006000945A5 (fr)
WO (1) WO2006119519A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013116288A1 (fr) 2012-01-31 2013-08-08 Envirotest Systems Holdings Corp. Système et procédé permettant de quantifier la présence de constituants dans les gaz d'échappement de véhicules commerciaux et/ou de véhicules utilitaires lourds
CN107831170A (zh) * 2017-12-04 2018-03-23 佛山市南海区环境保护监测站（佛山市南海区机动车排气污染管理所） 一种电子抓拍系统的林格曼黑度校正方法
CN109211795A (zh) * 2018-10-11 2019-01-15 北方工业大学 一种垂直式多车道机动车尾气遥感检测方法及系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106770059B (zh) * 2016-11-16 2019-06-04 浙江多普勒环保科技有限公司 一种基于燃烧方程修正算法的机动车尾气遥感检测方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422681A (en) * 1966-06-14 1969-01-21 Atomic Energy Commission Vehicle actuated roadside air sampling device
US5583765A (en) * 1994-08-23 1996-12-10 Grumman Aerospace Corporation Remote system for monitoring the weight and emission compliance of trucks and other vehicles
US20020092988A1 (en) * 1998-10-30 2002-07-18 Didomenico John Multilane remote sensing device
US20020194897A1 (en) * 2001-06-22 2002-12-26 William Patrick Arnott Photoacoustic instrument for measuring particles in a gas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831267A (en) * 1997-02-24 1998-11-03 Envirotest Systems Corp. Method and apparatus for remote measurement of exhaust gas
FI114572B (fi) * 2001-04-09 2004-11-15 Valtion Teknillinen Menetelmä ja mittausjärjestelmä ajoneuvon pakokaasupäästöjen määrittämiseksi ja valvomiseksi

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422681A (en) * 1966-06-14 1969-01-21 Atomic Energy Commission Vehicle actuated roadside air sampling device
US5583765A (en) * 1994-08-23 1996-12-10 Grumman Aerospace Corporation Remote system for monitoring the weight and emission compliance of trucks and other vehicles
US20020092988A1 (en) * 1998-10-30 2002-07-18 Didomenico John Multilane remote sensing device
US20020194897A1 (en) * 2001-06-22 2002-12-26 William Patrick Arnott Photoacoustic instrument for measuring particles in a gas

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013116288A1 (fr) 2012-01-31 2013-08-08 Envirotest Systems Holdings Corp. Système et procédé permettant de quantifier la présence de constituants dans les gaz d'échappement de véhicules commerciaux et/ou de véhicules utilitaires lourds
CN104508450A (zh) * 2012-01-31 2015-04-08 环境测试系统控股公司 用于量化商用和/或重型车辆中存在的废气成分的系统和方法
EP2810202A4 (fr) * 2012-01-31 2015-10-21 Envirotest Systems Holdings Corp Système et procédé permettant de quantifier la présence de constituants dans les gaz d'échappement de véhicules commerciaux et/ou de véhicules utilitaires lourds
AU2013215246B2 (en) * 2012-01-31 2017-06-22 Envirotest Systems Holdings Corp. System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles
CN107831170A (zh) * 2017-12-04 2018-03-23 佛山市南海区环境保护监测站（佛山市南海区机动车排气污染管理所） 一种电子抓拍系统的林格曼黑度校正方法
CN107831170B (zh) * 2017-12-04 2020-09-29 佛山市南海区环境保护监测站（佛山市南海区机动车排气污染管理所） 一种电子抓拍系统的林格曼黑度校正方法
CN109211795A (zh) * 2018-10-11 2019-01-15 北方工业大学 一种垂直式多车道机动车尾气遥感检测方法及系统
CN109211795B (zh) * 2018-10-11 2023-09-29 北方工业大学 一种垂直式多车道机动车尾气遥感检测方法及系统

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AT501279B1 (de) 2006-08-15
AT501279A4 (de) 2006-08-15
DE112006000945A5 (de) 2008-03-20
AT501279B8 (de) 2007-02-15

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