WO2018206354A1 - Procédé et unité d'évaluation destinés à déterminer l'état d'un filtre à air - Google Patents

Procédé et unité d'évaluation destinés à déterminer l'état d'un filtre à air Download PDF

Info

Publication number
WO2018206354A1
WO2018206354A1 PCT/EP2018/061128 EP2018061128W WO2018206354A1 WO 2018206354 A1 WO2018206354 A1 WO 2018206354A1 EP 2018061128 W EP2018061128 W EP 2018061128W WO 2018206354 A1 WO2018206354 A1 WO 2018206354A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
air filter
evaluation unit
ventilation system
particle sensor
Prior art date
Application number
PCT/EP2018/061128
Other languages
German (de)
English (en)
Inventor
Stefan Oberberger
Marcus Rehwinkel
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2018206354A1 publication Critical patent/WO2018206354A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • 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
    • B60H3/06—Filtering
    • B60H3/0608—Filter arrangements in the air stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning
    • 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
    • B60H3/06—Filtering
    • B60H2003/0683—Filtering the quality of the filter or the air being checked

Definitions

  • the invention relates to a method and an evaluation unit for determining the condition of a filter of a ventilation system, in particular a ventilation system of a vehicle.
  • a vehicle typically includes a ventilation system with which air (e.g., fresh air and / or recirculating air or air from the interior of the vehicle) is introduced into the vehicle
  • air e.g., fresh air and / or recirculating air or air from the interior of the vehicle
  • the ventilation system includes
  • the ventilation system may comprise a particle sensor with which particle sensor data relating to the particle load (in particular the particulate matter load) of the air which is conveyed into the interior of the vehicle can be detected.
  • the particulate sensor may be configured to detect particulate sensor data relating to the concentration of particulates (e.g., particulate matter) per unit volume in the conveyed air.
  • the ventilation system e.g., the fan's capacity or a venting system closure element
  • the ventilation system may be controlled in dependence on the particulate sensor data.
  • the ventilation system can be an air filter, in particular a particle and / or
  • Fine dust filter which is adapted to reduce the particle concentration in the air, which is conveyed into the interior of the vehicle.
  • the absorption capacity of an air filter for impurities from the air typically depends on the condition, in particular on the degree of occupancy, of the air filter.
  • the present document deals with the technical problem of providing a method and an evaluation unit, by means of which the condition of an air filter, in particular the degree of occupancy of an air filter, can be determined in a precise and efficient manner.
  • the object is solved by the independent claims.
  • the ventilation system may be part of a motor vehicle and may be configured to
  • air in particular air from the surroundings of the vehicle, can be conveyed via an air channel into the interior of the vehicle.
  • the interior of a vehicle is an example of an area to be ventilated by a ventilation system.
  • the ventilation system can be designed to convey different volumes and / or time-varying volumes of air through the air duct into the area to be ventilated.
  • the ventilation system may in particular comprise a fan, which is set up with different fan strengths different volumes or masses of air through the air duct (eg through a pipe) in the area to be ventilated (eg in the interior of a vehicle or in another room with breathing air and / or working air).
  • the fan strength may e.g. by a user of the ventilation system via a control (e.g., stepwise).
  • the fan power can be automatically adjusted by an automatic climate control of the vehicle, e.g. in
  • the ventilation system comprises a particle sensor arranged in the air duct.
  • the particle sensor can be set up to detect particle sensor data indicating the number and / or amount of particles (eg measured in ppm, parts per million, or in g, grams) in the air in the air channel (eg per unit time or per unit volume).
  • the particle sensor may comprise an optical sensor arranged to provide sensor data relating to an amount of light scattering, e.g. to detect a degree of light scattering in the air channel.
  • a light curtain can be generated inside the particle sensor and / or inside the air channel, through which the air flows with particles at a certain speed. The speed of the air may depend on the fan power.
  • the logic in the sensor evaluates the pulses of the deflected light on the receiving unit. In particular, on the basis of the pulses, the number and / or amount of particles per unit of time or per
  • Volume unit can be determined.
  • the ventilation system in the air duct comprises an air filter.
  • the air filter is arranged upstream with respect to a flow direction of the air with respect to the particle sensor.
  • the particle sensor can thus detect particle sensor data relating to the air at the outlet of the air filter.
  • the particulate sensor data may indicate the number and / or amount of particulate matter in the air that has passed through the air filter.
  • the evaluation unit can be set up to determine particle sensor data on the basis of the particle sensor.
  • the evaluation unit may be configured to determine the occupancy state of the air filter on the basis of the particle sensor data and on the basis of characteristic data relating to a particle separation performance of the air filter.
  • the occupancy state, in particular the degree of occupancy, of an air filter can be determined in a precise and efficient manner.
  • the characteristics of the air filter may indicate the particle separation efficiency of the air filter depending on the occupancy state of the air filter.
  • the characteristics may include a characteristic that indicates the particle separation efficiency of the air filter as a function of the occupancy state of the air filter.
  • the characteristic data can be determined by measurements in advance and stored on a storage unit of the ventilation system and thus made available to the evaluation unit.
  • the air filter may include a machine-readable code (e.g., a bar code or a QR code) that enables the evaluation unit to determine the characteristics of the air filter.
  • a machine-readable code e.g., a bar code or a QR code
  • the machine-readable code may indicate a link to a location where the characteristics for the air filter are stored. So can the
  • the ventilation system may for this purpose comprise a reading device which is adapted to detect the machine-readable code of the air filter. Furthermore, the ventilation system may include a communication unit to access the location of the characteristics.
  • the characteristic data for the air filter can be determined depending on one or more properties of the vehicle in which the air filter is arranged.
  • the one or more characteristics of the vehicle may be e.g. include: a manufacturer of the vehicle; a model name of the vehicle; a year of construction of the vehicle; a regional and / or country-dependent variant of the vehicle; and / or one or more optional extras of the vehicle.
  • the evaluation unit may be configured to determine the characteristics for the air filter on the basis of one or more properties of the vehicle in which the air filter is installed.
  • Particulate removal efficiency may indicate a number and / or amount of particulates that may be received by the air filter per unit volume and / or per unit mass of air passing through the air filter.
  • the particle separation performance can indicate a proportion of particles in the air passing through the air filter, which can be filtered out of the air by the air filter.
  • the particle separation efficiency can be such that the number and / or amount of particles on the basis of the particle sensor data and on the basis of the particle separation performance
  • the particle Separation efficiency can make it possible to determine from the number and / or amount of particles in the air at the outlet of the air filter, the number and / or amount of particles in the air at the entrance of the air filter.
  • the occupancy state of the air filter may indicate a number and / or amount of particles that have already been taken up by the air filter and / or that may still be picked up by the air filter.
  • the occupancy state of the air filter may indicate a number and / or amount of particles that have already been taken up by the air filter and / or that may still be picked up by the air filter.
  • Occupancy state indicate a proportion of a total absorption capacity of particles of the air filter that has already been used up or that is still available for the absorption of particles.
  • the total capacity of an air filter can indicate the total number and / or amount of particles that can be absorbed by the air filter during the lifetime of an air filter.
  • the occupancy state can thus indicate how long an air filter can still be used to filter the air in a ventilation system and / or what number and / or amount of particles can still be absorbed by the air filter as a whole.
  • the evaluation unit may be set up to determine air quality information x (t n ) based on the particle sensor data at a specific point in time t n , which indicates the number and / or quantity of particles which at the specific time t n in the Air is present at the outlet of the air filter. It can then be determined on the basis of the characteristics and on the basis of the air quality information x (t n ) recording information y (t n ) indicating the number and / or amount of particles that at the specific time t n of the Air filters were added.
  • an occupancy state Y (t n -) of the air filter can be determined at a time t n _ x preceding the determined time t n .
  • the characteristic data A (Y) of the air filter in particular on the basis of a characteristic curve A (Y), which indicates the particle absorption capacity A as a function of the occupation state Y, then the particle absorption power A (Y (t n-- 1 ) ) of the air filter at the preceding time t n _ x .
  • the current occupancy state of an air filter are determined.
  • the time t 0 corresponding to an initial time (eg when commissioning an air filter).
  • the time t N may correspond to a current time.
  • the time interval between two adjacent times t n _ x and t n corresponds to an update frequency.
  • the evaluation unit may thus be arranged recursively or iteratively on the basis of the particle sensor data for a sequence of time points from an initial point in time, on the basis of the characteristic data and on the basis of an initial occupancy state of the air filter at the start time, the occupancy state of the air filter to determine the sequence of times.
  • the initial occupancy state of the air filter may be the occupancy state of the air filter at the initial start-up of the air filter.
  • the initial occupancy state of the air filter may be the occupancy state of the air filter during a (re) startup of the ventilation system (e.g., at engine startup of a vehicle).
  • the initial occupancy state can be on a
  • Storage unit of the ventilation system to be stored and thus provided to the evaluation unit.
  • the ventilation system may include a fan which is designed to promote different volumes of air through the air duct (and thus through the air filter) into the area to be ventilated with different fan strengths.
  • the evaluation unit can be set up, a time interval or a
  • the evaluation unit may be configured to cause information related to the occupancy state of the air filter to be output to a user of the ventilation system. In particular, it can be determined whether the degree of occupancy of the air filter is greater than an occupancy level threshold. If so, an indication may be issued to a user to cause the user to replace the air filter. This can improve the air quality in a ventilated area.
  • a ventilation system is described.
  • Ventilation system includes an air duct. Furthermore, the ventilation system comprises an air filter that is configured to reduce a number and / or amount of particles in the air in the air duct. In particular, the number and / or amount of particles which are conveyed via the air duct into a region to be ventilated can be reduced by the air filter.
  • the ventilation system further includes a particulate sensor disposed in the air passage and configured to detect particulate sensor data indicative of the number and / or amount of particulates in the air in the air passage that has passed through the air filter.
  • the ventilation system includes the evaluation unit described in this document.
  • a method for determining an occupancy state of an air filter of a ventilation system is described.
  • the ventilation system is designed to convey air through an air duct into a region to be ventilated.
  • the ventilation system comprises in the air duct the air filter and a particle sensor.
  • the method includes determining, based on the particulate sensor, particulate sensor data indicative of a number and / or amount of particulates in the air in the air passage that has passed through the air filter.
  • the method comprises determining, on the basis of the particle sensor data and on the basis of characteristics relating to a particle separation efficiency of the air filter, the
  • the process can be repeated regularly, e.g. with a certain
  • Update frequency (for example, every second) to the current one
  • a vehicle in particular a road motor vehicle eg a passenger car or a lorry
  • a ventilation system described in this document and / or that described in this document
  • Evaluation unit includes.
  • SW software program
  • the SW program can be set up to run on a processor (e.g.
  • the storage medium may include a SW program that is set up to run on a processor and thereby perform the method described in this document.
  • Figure 1 shows the structure of an exemplary ventilation system
  • Figure 2 exemplary characteristics of the capacity of an air filter
  • FIG. 3 shows a flow diagram of an exemplary method for determining the condition of an air filter.
  • the present document is concerned with the efficient and precise determination of the condition of an air filter of a ventilation system.
  • FIG. 1 shows an exemplary ventilation system 100 with an air channel 102, through which air 120 is conveyed from a first region 121 into a second region 122 can be.
  • the first region 121 may be the environment of a vehicle and the second region 122 may be the interior of a vehicle.
  • the ventilation system 100 has
  • the air duct 102 typically includes a fan 104 (or other type of air mass flow adjusting unit) configured to convey air 120 through the air passage 102.
  • the fan 104 can be operated with different strengths (eg stepwise) in order to change the air volume V conveyed by the fan 104 per unit of time (measured, for example, in m 3 / s).
  • the air duct 102 can have a valve or a flap 103 (as a closure element), with which the air duct 102 can be closed partially or completely (eg stepwise or flowing).
  • the ventilation system 100 further comprises a particle sensor 111, which is set up, particle sensor data with respect to a number N of particles per unit time (measured, for example, in ppm / s) and / or per unit volume (measured, for example, in ppm / m 3 ) capture.
  • a particle sensor 111 which is set up, particle sensor data with respect to a number N of particles per unit time (measured, for example, in ppm / s) and / or per unit volume (measured, for example, in ppm / m 3 ) capture.
  • the particle sensor 111 can be set up, a particle concentration P per air volume unit (measured, for example, in particle number per volume, ie ppm / m 3 , and / or in weight per volume, ie g / m 3 ) in the air 120 to determine.
  • a particle concentration P per air volume unit measured, for example, in particle number per volume, ie ppm / m 3 , and / or in weight per volume, ie g / m 3 ) in the air 120 to determine.
  • the particle sensor 111 may be e.g. an optical sensor configured to detect an amount of optical dispersion. From the extent of the optical scattering can be concluded then on the number N of particles or on the weight of particles.
  • the particle sensor 111 may be arranged in a separate area 110 within the air channel 102.
  • the ventilation system 100 may further include a temperature control unit 106 that is configured to temper the air 120.
  • the temperature control unit 106 may, as shown in FIG. 1, be arranged upstream with respect to the particle sensor 111. Thus, air 120 may be caused to flow past the particulate sensor 111 that is displaced from the
  • Temperature control unit 106 was tempered (for example, to a certain target temperature).
  • the tempering unit 106 may be configured to cool or heat the air 120 from the first region 121.
  • a user of the ventilation system 100 may specify a desired temperature for the second region 122 and the temperature control unit 106 may be operated in dependence on the desired temperature. The by the
  • Tempering unit 106 set air temperature and / or air humidity of the air 120 may in the determination of the air quality in the ventilation system 100 and / or be considered in the determination of the occupancy state of an air filter 107 of the ventilation system 100.
  • the ventilation system 100 may further include one or more property sensors 105 configured to acquire property sensor data relating to a property of the air 120 in the air duct 102.
  • Exemplary properties are the humidity and the temperature of the air 120.
  • the ventilation system 100 comprises an air filter 107, in particular a particle filter, which is set up to reduce the number and / or the concentration of particles in the air 120 in the air duct 102.
  • the particle sensor 111 may be configured to determine the number N of particles or the particle concentration P of the air 120, which has already passed through the air filter 107.
  • the air 120 which has passed through the air filter 107 typically has a reduced number N of particles or a reduced particle concentration P, respectively.
  • An air filter 107 has a capacity for absorbing particles, which typically depends on the condition of the air filter 107, in particular on the degree of occupancy of the air filter 107.
  • FIG. 2 shows exemplary characteristics relating to the capacity of a
  • FIG. 2 shows a characteristic curve 203 for the separation efficiency 201 of an air filter 107 as a function of the degree of occupancy 202 of the air filter 107th Die
  • the number or amount of particles that can be filtered from air 120 per unit volume of air 120 (measured in ppm / m 3 or in g / m 3 ); and or
  • the occupancy status or occupancy level 202 can be any occupancy status or occupancy level.
  • the separation efficiency 201 of an air filter 107 depends on the occupancy state or
  • Occupancy rate 202 of the air filter 107 from.
  • the separation efficiency 201 decreases as the occupancy rate 202 increases.
  • the air filter 107 typically no longer has a filtering effect (i.e., a zero separation efficiency 201) so that air 120 is conveyed unfiltered into the second region 122.
  • the degree of occupancy 202 of the air filter 107 is 100% in this case.
  • the air filter 107 when the air filter 107 is first put into operation, the air filter 107 typically has a degree of occupancy 202 of 0% and a maximum possible
  • the evaluation unit 101 may be configured to change the state, in particular the
  • Occupancy degree 202 an air filter 107 to determine. In particular, it can be determined whether the degree of occupancy 202 of an air filter 107 reaches or exceeds a certain occupancy level threshold. An indication may then be issued to a user of the ventilation system 100 to indicate to the user that the air filter 107 should be replaced or cleaned to increase the separation efficiency 201.
  • the evaluation unit 101 can determine the quantity x (t) of particles in the air 120 after passing through the air filter 107 on the basis of the particle sensor 111 as air quality information (as a function of the time t). Furthermore, the evaluation unit 101 knows, based on the characteristics of the air filter 107, the separation efficiency 201 of the air filter 107 as a function of the degree of loading 202, i. A (Y), where Y is occupancy level 202 (eg, the amount of particles already taken up by air filter 107), and where A (Y) is separation efficiency 201 (eg, A (Y) can indicate the proportion of particles. which can be filtered by the air filter 107 from the air 120).
  • the quantity y (t) of particles which are measured on the particles can be determined
  • the evaluation unit 101 can thus on the basis of the particle sensor data of the particle sensor 111 during the life of an air filter 107 and on the basis of characteristics 203 with respect to the capacity of the air filter 107 at any time the
  • Occupancy status or occupancy level 202 of the air filter 107 determine.
  • the particle sensor 111 can thus be used to detect the filter occupancy of an air filter 107.
  • An air filter 107 has a curve or characteristic 203, which represents the separation capacity 201 of the air filter 107 as a function of the filter occupancy 202. New filters 107 typically pass fewer particles than dirty filters 107.
  • the curve 203 of separation efficiency 201 versus filter loading 202 may be determined in advance (e.g., through experiments).
  • the difference between the two values gives the deposited particle quantity or the weight of the deposited particles y (t).
  • the deposited particle quantity or its weight y (t) is integrated in order to determine the current filter loading Y.
  • On the basis of the current filter load Y can be inferred by taking into account the curve 203 in turn to the current separation efficiency 201 of the filter 107.
  • the end of life or the remaining life of a filter 107 can be determined.
  • This information can be displayed to a user of a ventilation system 100 via a display unit.
  • FIG. 3 shows a flowchart of an exemplary method 300 for determining the occupancy state 202 (in particular of occupancy level 202) of an air filter 107 of a ventilation system 100.
  • the ventilation system 100 is designed to convey air 120 through an air channel 102 into a region 122 to be ventilated
  • the ventilation system 100 in the air passage 102 includes the air filter 107 and a particle sensor 111.
  • the particle sensor 111 is disposed downstream of the air filter 107 with respect to a flow direction of the air 120.
  • the method 300 includes determining 301, based on the particle sensor 111, of particle sensor data indicating a number and / or amount of particles in the air 120 in the air passage 102 that has passed through the air filter 107.
  • the method 300 includes determining 302, based on the particle sensor data and based on characteristic data 203 relating to a particle separation capacity 201 of the air filter 107, the occupancy state 202 of the air filter 107.
  • the characteristics 203 may be determined in advance (eg in the development of the Air filter 107) determined, in particular measured be.
  • the current filter occupancy of an air filter 107 of a ventilation system 100 can be determined in a precise and efficient manner.
  • the remaining time of an air filter 107 can be determined and displayed.
  • the number and / or quantity z (t) of particles at the inlet of the air filter 107 can be determined. This number and / or quantity z (t) of particles may possibly be implausible. Thus, e.g. a faulty or inappropriate air filter 107 is detected.
  • the evaluation unit 101 can thus be set up to detect a defect of the air filter 107 on the basis of the particle sensor data and on the basis of the characteristic data 203 of an air filter 107 and / or to detect that an inappropriate air filter 107 is used in the ventilation system 100.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne une unité d'évaluation (101) pour un système d'aération (100). Le système d'aération (100) est conçu pour refouler de l'air (120) à travers un canal (102) d'air dans une zone (122) à aérer. Le système d'aération (100) comporte dans le canal (102) d'air un filtre (107) à air et un capteur de particules (111). L'unité d'évaluation (101) est conçue pour déterminer, au moyen du capteur de particules (111), des données de capteur de particules qui indiquent un certain nombre et/ou une quantité de particules dans l'air (120) dans le canal d'air (102) qui a traversé le filtre (107) à air. L'unité d'évaluation (101) est conçue en outre pour déterminer, sur la base des données du capteur de particules et sur la base des données caractéristiques (203) concernant une efficacité de séparation (201) des particules du filtre (107) à air, un état de remplissage (202) du filtre (107) à air.
PCT/EP2018/061128 2017-05-10 2018-05-02 Procédé et unité d'évaluation destinés à déterminer l'état d'un filtre à air WO2018206354A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017207872.3A DE102017207872A1 (de) 2017-05-10 2017-05-10 Verfahren und Auswerteeinheit zur Ermittlung des Zustands eines Luftfilters
DE102017207872.3 2017-05-10

Publications (1)

Publication Number Publication Date
WO2018206354A1 true WO2018206354A1 (fr) 2018-11-15

Family

ID=62217943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/061128 WO2018206354A1 (fr) 2017-05-10 2018-05-02 Procédé et unité d'évaluation destinés à déterminer l'état d'un filtre à air

Country Status (2)

Country Link
DE (1) DE102017207872A1 (fr)
WO (1) WO2018206354A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114829932A (zh) * 2019-12-18 2022-07-29 统耐保有限责任两合公司 用于对空气调节器的污染情况进行测量的系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040016300A (ko) * 2002-08-16 2004-02-21 현대모비스 주식회사 필터교환 알림장치
EP1459921A1 (fr) * 2003-03-21 2004-09-22 Adam Opel Ag Dispositif de filtration pour véhicule
US20060187070A1 (en) * 2005-02-07 2006-08-24 Hsing-Sheng Liang Techniques for identifying when to change an air filter
KR20080097028A (ko) * 2007-04-30 2008-11-04 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 차량 실내의 공기 정화장치 및 그 제어방법
DE102010001547A1 (de) * 2010-02-03 2011-08-04 Behr GmbH & Co. KG, 70469 Vorrichtung und Verfahren zur Standzeitüberwachung eines Filters

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955905A1 (de) * 1999-11-20 2001-05-23 Mann & Hummel Filter Filtersystem
FR2802620B1 (fr) * 1999-12-20 2002-03-22 Valeo Climatisation Installation de chauffage et/ou climatisation presentant une detection de colmatage d'un filtre
DE10058086A1 (de) * 2000-11-23 2002-06-06 Birger Tippelt Verfahren zur Überwachung von Filteranlagen
DE10245689A1 (de) * 2002-10-01 2004-04-15 Deere & Company, Moline Überwachungseinrichtung für Raumluftverunreinigung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040016300A (ko) * 2002-08-16 2004-02-21 현대모비스 주식회사 필터교환 알림장치
EP1459921A1 (fr) * 2003-03-21 2004-09-22 Adam Opel Ag Dispositif de filtration pour véhicule
US20060187070A1 (en) * 2005-02-07 2006-08-24 Hsing-Sheng Liang Techniques for identifying when to change an air filter
KR20080097028A (ko) * 2007-04-30 2008-11-04 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 차량 실내의 공기 정화장치 및 그 제어방법
DE102010001547A1 (de) * 2010-02-03 2011-08-04 Behr GmbH & Co. KG, 70469 Vorrichtung und Verfahren zur Standzeitüberwachung eines Filters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114829932A (zh) * 2019-12-18 2022-07-29 统耐保有限责任两合公司 用于对空气调节器的污染情况进行测量的系统

Also Published As

Publication number Publication date
DE102017207872A1 (de) 2018-11-15

Similar Documents

Publication Publication Date Title
DE102008042856A1 (de) Kraftfahrzeug-Belüftungssystem
DE60022722T2 (de) Luftbehandlungsystem
DE102014225272A1 (de) Innenraumluftfiltereinrichtung
DE102007056852A1 (de) Optimierte Rippengeometrie in einem Luftfilterkasten zur Wasserseparation, Strömungsverteilung und Gehäuseversteifung
DE102018102269A1 (de) Fahrzeuginnenluftqualität-kohlenstoffbehälterstatus- und austausch-/regenerationssteuerung
DE102018108815A1 (de) Rollbandluftfilter
DE102015100005A1 (de) Verfahren zum Ermitteln einer geschätzten Menge an Ruß, die sich in einem Partikelfilter eines Abgasnachbehandlungssystems angesammelt hat
DE102005027072A1 (de) Bewertung des aktuellen Beladungszustands eines Luftfilters in einer Fahrzeug-Lüftungseinheit
DE10114524B4 (de) Verfahren und Anordnung zur Klimatisierung schnellfahrender Fahrzeuge
DE102019103370A1 (de) Verfahren und system zum rationalisieren eines deltadrucksensors für einen benzinpartikelfilter in einem fahrzeugantriebssystem
DE102015205551A1 (de) Luftfilter mit einem mehrlagigen Filtermaterial
EP3380348B1 (fr) Système d'épuration d'air et procédé de commande du système d'épuration d'air
DE102007056356A1 (de) Verfahren zur Steuerung einer Klimaanlage in einem Fahrzeug
DE102008034487A1 (de) Verfahren zum schnellen Entleeren des Aktivkohlefilters unter Einbeziehung eines HC-Sensors (Konzentrationsänderung)
WO2018206354A1 (fr) Procédé et unité d'évaluation destinés à déterminer l'état d'un filtre à air
EP1495934B2 (fr) Dessiccateur d'air
DE102010001547A1 (de) Vorrichtung und Verfahren zur Standzeitüberwachung eines Filters
DE10316294B4 (de) Verfahren zur Steuerung/Regelung einer Klimaanlage für ein Kraftfahrzeug
DE102015200996A1 (de) Verfahren und Vorrichtung zur Standzeitüberwachung eines Filters
EP2505444A2 (fr) Installation de traitement de l'air comprimé et procédé de fabrication d'une installation de traitement de l'air comprimé
WO2011160735A1 (fr) Dispositif d'alimentation en air pour un véhicule à moteur, pourvu d'appareils pneumatiques
DE3000078C2 (fr)
EP2982841B1 (fr) Procédé de surveillance d'état d'un filtre à particules, système de gaz d'échappement et dispositif de mesure
DE202020106950U1 (de) Filtereinrichtung
DE102015225781A1 (de) System zur Bestimmung einer Pollenbelastung und/oder einer Schadstoffbelastung in einem Fahrzeug

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18726069

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18726069

Country of ref document: EP

Kind code of ref document: A1