WO2019129411A1 - Unité de commande pour faire fonctionner une sonde lambda à large bande monocellule et une sonde à saut - Google Patents

Unité de commande pour faire fonctionner une sonde lambda à large bande monocellule et une sonde à saut Download PDF

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Publication number
WO2019129411A1
WO2019129411A1 PCT/EP2018/079007 EP2018079007W WO2019129411A1 WO 2019129411 A1 WO2019129411 A1 WO 2019129411A1 EP 2018079007 W EP2018079007 W EP 2018079007W WO 2019129411 A1 WO2019129411 A1 WO 2019129411A1
Authority
WO
WIPO (PCT)
Prior art keywords
probe
ipe
terminal
ape
control unit
Prior art date
Application number
PCT/EP2018/079007
Other languages
German (de)
English (en)
Inventor
Fabian Baumann
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2019129411A1 publication Critical patent/WO2019129411A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/409—Oxygen concentration cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/4065—Circuit arrangements specially adapted therefor
    • 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
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • G01N27/419—Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells

Definitions

  • a jump probe is to be understood as meaning a lambda probe operating on the Nernst principle.
  • Jump probes are also referred to as two-point lambda probes.
  • the two-point lambda probes compare the residual oxygen content in the exhaust gas with the oxygen content of a reference gas atmosphere, which may be in the interior of the sensor device as circulating air, and indicate whether in the exhaust gas, a so-called “rich mixture” with a lambda value Lambda ⁇ 1 or a so-called “lean mixture” with a lambda value of lambda> 1 is present.
  • lambda denotes the ratio between the current air / fuel ratio and the stoichiometric air / fuel ratio.
  • a basic idea of the present invention is to design the control unit in such a way that a single-cell broadband lambda probe and a jump probe share a connection in common. As a result, the number of ports compared to conventional control units remain unchanged.
  • Figure 2 is a block diagram of a sensor system.
  • the sensor system comprises the control unit 10, the unicellular broadband lambda probe 12 and the jump probe 14.
  • the control unit 10 has three or four connections for electrically contacting the single-cell broadband lambda probe 12 and the jump probe 14.
  • the control unit 10 has four ports IPE, APE, RE, MES.
  • a first terminal IPE of the terminals IPE, APE, RE, MES is designed such that the single-cell broadband lambda probe 12 and the jump probe 14 are electrically contactable together at the first terminal IPE, as will be described in more detail below.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

L'invention concerne une unité de commande (10) pour faire fonctionner une sonde lambda à large bande monocellule (12) et une sonde à saut (14), en particulier dans un système de post-traitement des gaz d'échappement d'un moteur à combustion interne. L'unité de commande (10) comporte trois ou quatre raccordements (IPE, APE, RE, MES) pour la mise en contact électrique de la sonde lambda à large bande monocellule (12) et de la sonde à saut (14). Un premier raccordement (IPE) des raccordements (IPE, APE, RE, MES) est réalisé de telle sorte que la sonde lambda à large bande monocellule (12) et la sonde à saut (14) peuvent être mises en contact électrique conjointement avec le premier raccordement (IPE).
PCT/EP2018/079007 2017-12-28 2018-10-23 Unité de commande pour faire fonctionner une sonde lambda à large bande monocellule et une sonde à saut WO2019129411A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017223843.7 2017-12-28
DE102017223843.7A DE102017223843A1 (de) 2017-12-28 2017-12-28 Steuereinheit zum Betrieb einer einzelligen Breitbandlambdasonde und einer Sprungsonde

Publications (1)

Publication Number Publication Date
WO2019129411A1 true WO2019129411A1 (fr) 2019-07-04

Family

ID=64049164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/079007 WO2019129411A1 (fr) 2017-12-28 2018-10-23 Unité de commande pour faire fonctionner une sonde lambda à large bande monocellule et une sonde à saut

Country Status (2)

Country Link
DE (1) DE102017223843A1 (fr)
WO (1) WO2019129411A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110291A1 (fr) * 2006-03-28 2007-10-04 Robert Bosch Gmbh Capteur de gaz
DE102007009157A1 (de) * 2007-02-26 2008-08-28 Robert Bosch Gmbh Verfahren zum Betreiben einer Lambdasonde
DE102007018004A1 (de) * 2007-04-17 2008-10-23 Robert Bosch Gmbh Verfahren zum Betreiben einer Lambdasonde und Verfahren zur Lambdaregelung einer Brennkraftmaschine unter Verwendung so betriebener Lambdasonden
DE102010040194A1 (de) * 2010-09-03 2012-03-08 Robert Bosch Gmbh Sensorelement zur Erfassung von Gaseigenschaften
DE102013200973A1 (de) * 2013-01-22 2014-07-24 Robert Bosch Gmbh Sensorsystem
DE102013224811A1 (de) * 2013-12-04 2015-06-11 Robert Bosch Gmbh Steuereinheit zum Betrieb einer Breitband-Lambdasonde

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110291A1 (fr) * 2006-03-28 2007-10-04 Robert Bosch Gmbh Capteur de gaz
DE102007009157A1 (de) * 2007-02-26 2008-08-28 Robert Bosch Gmbh Verfahren zum Betreiben einer Lambdasonde
DE102007018004A1 (de) * 2007-04-17 2008-10-23 Robert Bosch Gmbh Verfahren zum Betreiben einer Lambdasonde und Verfahren zur Lambdaregelung einer Brennkraftmaschine unter Verwendung so betriebener Lambdasonden
DE102010040194A1 (de) * 2010-09-03 2012-03-08 Robert Bosch Gmbh Sensorelement zur Erfassung von Gaseigenschaften
DE102013200973A1 (de) * 2013-01-22 2014-07-24 Robert Bosch Gmbh Sensorsystem
DE102013224811A1 (de) * 2013-12-04 2015-06-11 Robert Bosch Gmbh Steuereinheit zum Betrieb einer Breitband-Lambdasonde

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Sensoren im Kraftfahrzeug", SPRINGER VIEWEG, pages: 160 - 165
NATIONAL INSTRUMENTS: "USER MANUAL NI 9757 NI Powertrain Controls O2 Sensor Module Kit -Rev E Contents", 1 January 2015 (2015-01-01), XP055538068, Retrieved from the Internet <URL:http://www.ni.com/pdf/manuals/375007a.pdf> [retrieved on 20190103] *

Also Published As

Publication number Publication date
DE102017223843A1 (de) 2019-07-04

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