DE10200953B4 - Device for controlling the supply of fresh air in vehicles - Google Patents
Device for controlling the supply of fresh air in vehicles Download PDFInfo
- Publication number
- DE10200953B4 DE10200953B4 DE10200953A DE10200953A DE10200953B4 DE 10200953 B4 DE10200953 B4 DE 10200953B4 DE 10200953 A DE10200953 A DE 10200953A DE 10200953 A DE10200953 A DE 10200953A DE 10200953 B4 DE10200953 B4 DE 10200953B4
- Authority
- DE
- Germany
- Prior art keywords
- carbon dioxide
- gas sensor
- vehicle interior
- supply
- contraption
- 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.)
- Expired - Fee Related
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 24
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 24
- 238000011156 evaluation Methods 0.000 claims abstract description 5
- 231100000331 toxic Toxicity 0.000 claims abstract description 4
- 230000002588 toxic effect Effects 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 206010042772 syncope Diseases 0.000 description 1
- 230000003867 tiredness Effects 0.000 description 1
- 208000016255 tiredness Diseases 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/008—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0085—Smell or pollution preventing arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- 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
Abstract
Vorrichtung (14) zur Überwachung toxischer Kohlendioxidkonzentrationen in einem Fahrzeug (12) bestehend aus mindestens einem Gassensor (3, 4, 5) und mindestens einer Auswerteelektronik (11), wobei Infrarotgassensoren (3, 4, 5) eingesetzt werden, dadurch gekennzeichnet, dass eine Anzahl von Gassensoren (3, 4, 5) vorgesehen sind, von denen mindestens ein Gassensor (3) im Bereich der Zuführung der Zuluft (9) oder Umluft (10) in den Fahrzeuginnenraum (2) angeordnet ist und die Kohlendioxidkonzentration der zugeführten oder umgewälzten Luft (9, 10) erfasst und mindestens ein weiterer Gassensor (4, 5) so im Fahrzeuginnenraum (2) angeordnet ist, dass er Veränderungen der Kohlendioxidkonzentration im Fahrzeuginnenraum (2) selbst erfasst, wobei die Vorrichtung (14) die Signale der Gassensoren (3, 4, 5) zur Beeinflussung der Frischluftzufuhr (9) in den Fahrzeuginnenraum (2) nutzt.contraption (14) for monitoring consisting of toxic carbon dioxide concentrations in a vehicle (12) from at least one gas sensor (3, 4, 5) and at least one evaluation electronics (11), wherein infrared gas sensors (3, 4, 5) are used, characterized characterized in that a number of gas sensors (3, 4, 5) are provided are, of which at least one gas sensor (3) in the supply of the Supply air (9) or circulating air (10) arranged in the vehicle interior (2) is and the carbon dioxide concentration of the supplied or circulated air (9, 10) detected and at least one further gas sensor (4, 5) so in the vehicle interior (2) is arranged that he changes the carbon dioxide concentration in the vehicle interior (2) itself detected, the device (14) receiving the signals from the gas sensors (3, 4, 5) for influencing the fresh air supply (9) in the vehicle interior (2) uses.
Description
Kohlendioxid eignet sich sehr gut als Ersatz für Fluor-Chlor-Kohlenwasserstoffe (FCKW) in Klimaanlagen. Insbesondere in der Fahrzeugtechnik hat das Kohlendioxid aufgrund seiner thermodynamischen Eigenschaften zusätzliche technische Vorteile. Ein Nachteil ergibt sich allerdings bei Schadensereignissen (Unfall, Korrosion, ...), die zu einer Leckage in der Klimaanlage führen können. Tritt das Kohlendioxid dann in den Fahrgastinnenraum ein, so kann es bei einer Konzentration von > ca. 1 Vol.-% CO2 zu ersten Anzeichen einer Beeinflussung (z. B. Müdigkeit, Kopfschmerzen, Übelkeit, ...) durch das Kohlendioxid kommen. Konzentrationen bis zu 0,5 Vol.-% Kohlendioxid kann ein gesunder Mensch bis zu 8 Stunden ohne größere Probleme ertragen. Aus diesem Grund wurde dieser Wert auch als maximale Arbeitsplatzkonzentration (MAK) definiert. Steigt die Kohlendioxidkonzentration an (1 Vol.-% bis 5 Vol.-%), so kann es zu weiteren Ausfällen (z. B. Ohnmacht) oder gar zum Tod führen.Carbon dioxide is a very good substitute for fluoro-chloro-hydrocarbons (CFCs) in air conditioning systems. In particular, in vehicle technology, the carbon dioxide has additional technical advantages due to its thermodynamic properties. However, a disadvantage arises in case of damage (accident, corrosion, ...), which can lead to a leakage in the air conditioning. If the carbon dioxide then enters the passenger compartment, the first signs of an influence (eg tiredness, headache, nausea, ...) due to carbon dioxide can occur at a concentration of> 1% by volume of CO 2 , Concentrations of up to 0.5% by volume of carbon dioxide can be tolerated by a healthy person for up to 8 hours without major problems. For this reason, this value was also defined as maximum workplace concentration (MAK). If the carbon dioxide concentration increases (1% by volume to 5% by volume), it can lead to further failures (eg fainting) or even death.
Wesentlicher Bestandteil einer kontinuierlich arbeitenden Vorrichtung, die vor diesen gefährlichen Kohlendioxidkonzentrationen warnt, ist ein Gassensor der diese Kohlendioxidkonzentration zuverlässig erfasst.essential Part of a continuous device, the before these dangerous carbon dioxide concentrations warns, is a gas sensor that reliably detects this carbon dioxide concentration.
Gassensoren auf der Basis von Flüssigelektrolyten scheiden für eine Anwendung in der Fahrzeugtechnik aufgrund der Temperatureinsatzbereiche von –40°C bis 80°C aus. Nachteilig ist bei diesen Sensoren auch die Ansprechgeschwindigkeit, die im Minutenbereich liegt und somit keine reaktionsschnelle Aktionen auslösen kann. Festelektrolytsensoren sind nicht für den Konzentrationsbereich von 0 Vol.-% bis 5 Vol.-% CO2 geeignet und haben außerdem eine hohe Leistungsaufnahme und ein unerwünschtes Einlaufverhalten (Anwärmzeit, Alterung, ...).Gas sensors based on liquid electrolytes are classified for use in automotive engineering due to the temperature ranges from -40 ° C to 80 ° C. A disadvantage of these sensors is also the response speed, which is in the minute range and thus can not trigger reactions with rapid reactions. Solid electrolyte sensors are not suitable for the concentration range of 0 vol .-% to 5 vol .-% CO 2 and also have a high power consumption and an undesirable run-in behavior (warm-up time, aging, ...).
Wärmeleitfähigkeitssensoren sind prinzipiell geeignet, haben jedoch große Querempfindlichkeiten zu Wasserdampf, die eine zuverlässige Kohlendioxiderfassung ausschließen.thermal conductivity sensors are in principle suitable, but have great cross sensitivities too Water vapor, which is a reliable Exclude carbon dioxide capture.
Aus
der
Die Aufgabe der vorliegenden Erfindung ist daher eine Vorrichtung zu schaffen, die vor einer solchen gefährlichen (toxischen) Kohlendioxidkonzentration zuverlässig und eindeutig warnt und die Gefahr für die Fahrgäste durch eine schnell aktivierte Frischluftzufuhr beseitigt.The The object of the present invention is therefore an apparatus create against such a dangerous (toxic) carbon dioxide concentration reliable and clearly warns and the danger to passengers through a quickly activated Fresh air supply eliminated.
Die Lösung der erfindungsgemäßen Aufgabe ergibt sich aus den kennzeichnenden Merkmalen des Anspruches 1 in Zusammenwirken mit den Merkmalen des Oberbegriffes. Weitere vorteilhafte Ausführungen der Erfindung ergeben sich aus den Unteransprüchen.The solution the task of the invention arises from the characterizing features of claim 1 in Interaction with the characteristics of the generic term. Further advantageous versions The invention will become apparent from the dependent claims.
In
Ein
wesentlicher Vorteil nach Anspruch 1 besteht darin, dass Infrarotgassensoren
(
Weitere Vorteile der Infrarotgassensorik liegen auch in der schnellen Betriebsbereitschaft, die nach wenigen Sekunden nach dem Einschalten (Motorstart) erreicht ist und der extrem guten Langzeitstabilität über mehrere Jahre im Dauerbetrieb.Further Advantages of the infrared gas sensors are also the fast operational readiness, which reaches after a few seconds after switching on (engine start) and the extremely good long-term stability over several years in continuous operation.
Die
Kennlinie von Infrarotgassensoren ist außerdem monoton fallend, das
heißt
bei einer stetig ansteigenden Kohlendioxidkonzentration entsteht nach
dem Lambert Beerschen Gesetz eine exponentielle Kennlinie.
- I(c)
- = Intensität bei einer Gaskonzentration c
- I0
- = Intensität bei c = 0
- c
- = Gaskonzentration
- α
- = Absorptionskoeffizient
- L
- = Abstand (optischer Weg in der Messküvette) zwischen der Strahlungsquelle und dem Empfangsdetektor
- I (c)
- = Intensity at a gas concentration c
- I 0
- = Intensity at c = 0
- c
- = Gas concentration
- α
- = Absorption coefficient
- L
- = Distance (optical path in the cuvette) between the radiation source and the reception detector
In
Die Küvettenlänge L kann dabei so angepasst werden, dass die Empfindlichkeit in dem kritischen Arbeitsbereich zwischen 1,0 Vol.-% und 3,0 Vol.-% nahezu linear verläuft, während in den größeren Konzentrationsbereichen, nach der Grenzwertüberschreitung (Sättigungsbereich) zwar auch noch eine Signaländerung zu verzeichnen ist, die aber dann in die "Sättigung" übergeht und somit immer einen Wert oberhalb des Grenzwertes anzeigt.The Cuvette length L can be adjusted so that the sensitivity in the critical Working range between 1.0 vol .-% and 3.0 vol .-% almost linear runs, while in the larger concentration ranges, after the limit has been exceeded (Saturation) Although also a signal change is recorded, but then goes into the "saturation" and thus always one Indicates value above the limit.
- 11
- Klimaanlageair conditioning
- 22
- FahrgastinnenraumPassenger compartment
- 33
- InfrarotgassensorInfrared gas sensor
- 44
- InfrarotgassensorInfrared gas sensor
- 55
- InfrarotgassensorInfrared gas sensor
- 66
- Steuersignalcontrol signal
- 77
- FrischluftzufuhrFresh air
- 88th
- Aktoractuator
- 99
- Zuluftsupply air
- 1010
- Umluftcirculating air
- 1111
- Auswertelektronikevaluation system
- 1212
- Fahrzeugvehicle
- 1313
- LüfterFan
- 1414
- Vorrichtungcontraption
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10200953A DE10200953B4 (en) | 2002-01-12 | 2002-01-12 | Device for controlling the supply of fresh air in vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10200953A DE10200953B4 (en) | 2002-01-12 | 2002-01-12 | Device for controlling the supply of fresh air in vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10200953A1 DE10200953A1 (en) | 2003-07-31 |
DE10200953B4 true DE10200953B4 (en) | 2007-08-02 |
Family
ID=7711979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10200953A Expired - Fee Related DE10200953B4 (en) | 2002-01-12 | 2002-01-12 | Device for controlling the supply of fresh air in vehicles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10200953B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103344743A (en) * | 2013-07-23 | 2013-10-09 | 无锡伊佩克科技有限公司 | Detecting device of air in vehicle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007016696A1 (en) * | 2007-04-04 | 2008-10-09 | Behr Gmbh & Co. Kg | Carbon-dioxide concentration limiting method for use in motor vehicle, involves determining actual value of carbon-dioxide concentration based on static and dynamic measured variables, and comparing actual valve with preset desired value |
JP4877055B2 (en) * | 2007-04-27 | 2012-02-15 | トヨタ紡織株式会社 | Cabin environment monitoring device |
US20120015594A1 (en) * | 2010-07-14 | 2012-01-19 | Thermo King Corporation | Demand-based fresh air control system |
DE102014205552A1 (en) * | 2014-03-25 | 2015-10-01 | MAHLE Behr GmbH & Co. KG | Device for detecting a leakage of a motor vehicle air conditioning system operated with carbon dioxide as a refrigerant |
FR3046845B1 (en) * | 2016-01-20 | 2018-02-02 | Psa Automobiles Sa. | SYSTEM AND METHOD FOR MEASURING AIR QUALITY IN THE CABIN OF A MOTOR VEHICLE |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3907049A1 (en) * | 1989-03-04 | 1990-09-13 | Bayerische Motoren Werke Ag | VEHICLE WITH A SECURITY SYSTEM |
DE19607637A1 (en) * | 1996-02-29 | 1997-09-04 | Kuehl Entwicklung Und Geraeteb | Method to maintain healthy air conditions in motor vehicle passenger compartment |
DE19850914A1 (en) * | 1998-11-05 | 2000-05-18 | Messer Griesheim Gmbh | Air conditioning system for motor vehicle has flap for interrupting air flow into interior of vehicle in ventilation system downstream of heat exchanger and controlled by CO2 sensor |
-
2002
- 2002-01-12 DE DE10200953A patent/DE10200953B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3907049A1 (en) * | 1989-03-04 | 1990-09-13 | Bayerische Motoren Werke Ag | VEHICLE WITH A SECURITY SYSTEM |
DE19607637A1 (en) * | 1996-02-29 | 1997-09-04 | Kuehl Entwicklung Und Geraeteb | Method to maintain healthy air conditions in motor vehicle passenger compartment |
DE19850914A1 (en) * | 1998-11-05 | 2000-05-18 | Messer Griesheim Gmbh | Air conditioning system for motor vehicle has flap for interrupting air flow into interior of vehicle in ventilation system downstream of heat exchanger and controlled by CO2 sensor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103344743A (en) * | 2013-07-23 | 2013-10-09 | 无锡伊佩克科技有限公司 | Detecting device of air in vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE10200953A1 (en) | 2003-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3428554B1 (en) | Method for detecting leaks in an air conditioning system | |
DE102005032722B3 (en) | Measuring presence and/or concentration of analyte using gas sensor, by comparing first recorded value with threshold and triggering alarm if threshold is exceeded | |
EP0160010B1 (en) | Device for purifying of polluted air | |
DE19750133C2 (en) | Device for monitoring and regulating the CO¶2¶ concentration in the interior of a motor vehicle | |
DE60300172T2 (en) | Apparatus and method for measuring breath alcohol | |
WO2017137429A1 (en) | Aircraft and warning device for an "engine oil smell" in a cabin of an aircraft | |
CH677413A5 (en) | ||
DE10259973B4 (en) | Method of operating an air conditioner | |
DE10254496B4 (en) | A method for controlling odors and / or pollutants in the vehicle interior | |
DE10200953B4 (en) | Device for controlling the supply of fresh air in vehicles | |
DE10348164B4 (en) | Apparatus and method for preventing overheating of a person or an animal in a motor vehicle | |
DE19850914A1 (en) | Air conditioning system for motor vehicle has flap for interrupting air flow into interior of vehicle in ventilation system downstream of heat exchanger and controlled by CO2 sensor | |
DE102014010713A1 (en) | "Gas sensor arrangement for measuring a target gas concentration" | |
DE10318504B3 (en) | Monitoring leakage from vehicle air conditioners employing carbon dioxide working fluid, warns driver of rising concentration in passenger compartment and initiates safety precautions | |
DE10337753A1 (en) | Air conditioning, in particular for use in motor vehicles and methods for their operation | |
DE10347030A1 (en) | Method and device for the operation of building services systems including safety and monitoring functions | |
DE102006006963A1 (en) | Air conditioning system for vehicle, comprises sensor unit for detection of carbon dioxide leak | |
EP1004487A2 (en) | Device for a lockable space in a vehicle | |
EP2106940B1 (en) | NBC-sealed vehicle with CO2 sensors and method for regulating the quality of internal air | |
DE102008024085B4 (en) | Feuerschutzabsperrvorrichtung | |
DE4105598A1 (en) | Gas detection arrangement with filter for motor vehicle emissions - has sensor for reducing and=or oxidising gas in housing with electrical heating and ventilation | |
DE10252427A1 (en) | Device for protecting against increased CO2 concentration in motor vehicle interior, includes control unit connected on input side with sensor and serves to control air ventilation flap/valve | |
DE102014205552A1 (en) | Device for detecting a leakage of a motor vehicle air conditioning system operated with carbon dioxide as a refrigerant | |
WO2004065864A1 (en) | Arrangement and operating method for monitoring air conditioning systems containing carbon dioxide as a coolant | |
DE202010013749U1 (en) | Warning device for detecting gas |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140801 |