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1. WO2011095470 - GAS CONCENTRATION SENSOR, MOTOR VEHICLE HAVING A GAS CONCENTRATION SENSOR, AND METHOD FOR MEASURING GAS CONCENTRATION

Publication Number WO/2011/095470
Publication Date 11.08.2011
International Application No. PCT/EP2011/051359
International Filing Date 01.02.2011
IPC
G01N 29/02 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
02Analysing fluids
G01N 29/036 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
02Analysing fluids
036by measuring frequency or resonance of acoustic waves
G01M 15/10 2006.1
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
15Testing of engines
04Testing internal-combustion engines
10by monitoring exhaust gases
CPC
G01M 15/102
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
15Testing of engines
04Testing internal-combustion engines
10by monitoring exhaust gases ; or combustion flame
102by monitoring exhaust gases
G01N 2291/012
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
01Indexing codes associated with the measuring variable
012Phase angle
G01N 2291/0212
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
02Indexing codes associated with the analysed material
021Gases
0212Binary gases
G01N 2291/0217
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
02Indexing codes associated with the analysed material
021Gases
0217Smoke, combustion gases
G01N 2291/102
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
10Number of transducers
102one emitter, one receiver
G01N 29/02
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
02Analysing fluids
Applicants
  • CONTINENTAL AUTOMOTIVE GMBH [DE]/[DE] (AllExceptUS)
  • BERNAT, Tobias [DE]/[DE] (UsOnly)
  • HOLLSTEIN, Armin [DE]/[DE] (UsOnly)
Inventors
  • BERNAT, Tobias
  • HOLLSTEIN, Armin
Priority Data
10 2010 006 576.502.02.2010DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) GASKONZENTRATIONSSENSOR, KRAFTFAHRZEUG MIT GASKONZENTRATIONSSENSOR SOWIE GASKONZENTRATIONSMESSVERFAHREN
(EN) GAS CONCENTRATION SENSOR, MOTOR VEHICLE HAVING A GAS CONCENTRATION SENSOR, AND METHOD FOR MEASURING GAS CONCENTRATION
(FR) CAPTEUR DE CONCENTRATION DE GAZ, VÉHICULE AUTOMOBILE ÉQUIPÉ D'UN CAPTEUR DE CONCENTRATION DE GAZ ET PROCÉDÉ DE MESURE D'UNE CONCENTRATION DE GAZ
Abstract
(DE) Die vorliegende Erfindung beschreibt einen Gaskonzentrationssensor bestehend aus: einem Schallsender, einem Schallempfänger, einer Regelvorrichtung, mit der ein Phasenversatz zwischen dem von dem Schallsender ausgesendeten Schallsignal und einem von dem Schallempfänger empfangenen Schallsignal auf einem vorgebbaren Phasenversatz regelbar ist, wobei eine Änderung einer Zusammensetzung eines Gasgemischs auf Grund einer Frequenzänderung des Schallsignals gegenüber einer Frequenz eines Referenzschallsignals mittels einer Auswerteeinheit bestimmbar ist. Weiterhin beschreibt die Erfindung ein Kraftfahrzeug mit dem erfindungsgemäßen Gaskonzentrationssensor sowie ein Gaskonzentrationsmessverfahren, das den erfindungsgemäßen Gaskonzentrationssensor verwendet.
(EN) The invention relates to a gas concentration sensor, consisting of: a sound transmitter, a sound receiver, a control device by means of which a phase shift between the sound signal transmitted by the sound transmitter and a sound signal received by the sound receiver can be controlled to a predefinable phase shift, wherein a change in a composition of a gas mixture can be detected by means of an analysis unit on the basis of a change in frequency of the sound signal relative to a frequency of a reference sound signal. The invention further relates to a motor vehicle having the gas concentration sensor according to the invention, and to a method for measuring gas concentration using the gas concentration sensor according to the invention.
(FR) La présente invention concerne un capteur de concentration de gaz comprenant : un émetteur de son, un récepteur de son, un dispositif de réglage permettant de régler un déphasage entre le signal sonore émis par l'émetteur de son et un signal sonore reçu par le récepteur de son sur un déphasage prédéfinissable, une modification d'une composition d'un mélange gazeux pouvant être déterminée au moyen d'une unité d'évaluation d'après une variation de fréquence du signal sonore par rapport à une fréquence d'un signal sonore de référence. L'invention concerne en outre un véhicule automobile équipé du capteur de concentration de gaz selon l'invention, ainsi qu'un procédé de mesure d'une concentration de gaz faisant appel audit capteur de concentration de gaz.
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