WO2016113478A1 - Device for selectively analysing filtered and unfiltered air, for a facility for heating/air conditioning an enclosure - Google Patents

Device for selectively analysing filtered and unfiltered air, for a facility for heating/air conditioning an enclosure Download PDF

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Publication number
WO2016113478A1
WO2016113478A1 PCT/FR2015/053457 FR2015053457W WO2016113478A1 WO 2016113478 A1 WO2016113478 A1 WO 2016113478A1 FR 2015053457 W FR2015053457 W FR 2015053457W WO 2016113478 A1 WO2016113478 A1 WO 2016113478A1
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WO
WIPO (PCT)
Prior art keywords
air
filter
enclosure
installation
inputs
Prior art date
Application number
PCT/FR2015/053457
Other languages
French (fr)
Inventor
Eddy CARVALHO
Karine Pajot
Vincent Aubry
Original Assignee
Peugeot Citroen Automobiles Sa
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 Peugeot Citroen Automobiles Sa filed Critical Peugeot Citroen Automobiles Sa
Priority to CN201580073516.1A priority Critical patent/CN107405976B/en
Priority to EP15819847.3A priority patent/EP3245081A1/en
Publication of WO2016113478A1 publication Critical patent/WO2016113478A1/en

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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
    • 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
    • B60H1/00785—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 by the detection of humidity or frost
    • 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
    • B60H1/00792—Arrangement of detectors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance

Definitions

  • the invention relates to air analysis devices which are intended to equip heating / air conditioning systems equipped with filter (s) and for supplying treated air to an enclosure.
  • this invention relates to any system comprising at least one enclosure to be supplied with air treated by a heating / air conditioning system with filter (s) and supply flap to control its air supply from the outside and / or air from the inside of the enclosure (or recirculated air). Therefore, it concerns at least vehicles, possibly of automobile type, and buildings.
  • filter is used herein to mean equipment charged with filtering into the air which supplies it with at least one chemical species in solid form (for example fine particles or dust) or in gaseous form (for example CO, O 3 , SO 2 , NO 2 , O 2 or CO 2 ), and / or dehumidify this air which feeds it.
  • chemical species for example fine particles or dust
  • gaseous form for example CO, O 3 , SO 2 , NO 2 , O 2 or CO 2
  • Some heating / air conditioning systems and in particular those that equip vehicles, possibly cars, include an air analysis device responsible for controlling the quality of the air to feed at least one enclosure (such as a passenger compartment).
  • This device generally comprises a single sensor responsible for carrying out measurements representative of the concentration of at least one chemical species (generally a gaseous or solid pollutant (particles)) in the air supplying the installation that it equips. .
  • the senor When the sensor detects that the concentration of a chemical species is greater than a threshold, it warns its device so that it triggers the implementation of a suitable strategy for supplying the installation and / or cleaning up the water. 'pregnant.
  • This strategy depends on the location of the sensor and therefore the air it can analyze. For example, when the sensor is located upstream of the supply flap and responsible for analyzing the outside air, the crossing of a detection threshold triggers a ban on the supply of the outside air chamber (and therefore only recirculated air (that is to say from the enclosure) feeds the installation), except for very short periods intended to regenerate the oxygen internal air.
  • the sensor When the sensor is installed downstream of the supply flap, it can analyze the outside air and the recirculated air, and thus makes it possible to know both the level of pollution outside the enclosure and the level of pollution. in the enclosure in certain modes of operation of the installation.
  • the aforementioned two locations of the sensor do not make it possible to precisely determine the efficiency of the filtering, for example to inform the persons who are present in the enclosure and / or to request a replacement of the filter when this efficiency becomes lower than a threshold.
  • the invention is therefore particularly intended to improve the situation.
  • an air analysis device intended to equip a heating / air conditioning system comprising at least one filter, suitable for filtering at least one chemical species contained in a supply air derived from the outside and / or inside of an enclosure and / or dehumidifying this supply air, and adapted to supply treated air to this enclosure, and, secondly, comprising at least one clean sensor to carry out measurements representative of the concentration of this chemical species and / or hygrometry in the air which feeds it.
  • This device is characterized by the fact that it also comprises: - a part comprising at least three entries intended to be placed in upstream of the sensor and to be supplied respectively with air coming from the outside, with air coming from inside the enclosure and with filtered air coming from an area of the installation which is located downstream of the filter, and
  • Control means adapted to selectively control the passage of air through one of the inputs according to a received instruction so that the sensor analyzes this air.
  • the air analysis device according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular:
  • its control means can comprise, on the one hand, a rotating disk placed against the entrances and having an opening adapted to allow the passage of air through one of these inputs when it is placed opposite that and, on the other hand, an electric motor capable of driving in rotation the rotary disk to place its opening opposite an input corresponding to the instruction received;
  • duct secured to its part and having an internal part in which is housed at least a portion of the sensor and an output adapted to be coupled to the installation upstream of the filter;
  • It may also include an electric air pump to suck the air to pass through the selected inlet.
  • the invention also proposes a heating / air-conditioning system capable of supplying treated air to an enclosure and comprising at least one filter capable of filtering at least one chemical species contained in an air supply coming from outside and / or from inside the enclosure and / or dehumidify this supply air, and an air analysis device of the type shown above.
  • the heating / air conditioning system according to the invention can have other features that can be taken separately or in combination, including:
  • the parts and means of control of its air analysis device can be installed upstream of the filter and downstream of a supply flap which is
  • a supply duct supplied with air by the supply flap and comprising an outlet secured to the room for supplying at least one of its outlets to outside air and / or in air from the enclosure, a second part, an opening communicating with an area located downstream of the filter, and, thirdly, a connecting conduit providing a connection between this opening and another of the inputs of the room ;
  • it may comprise, firstly, an opening 15 communicating with a first zone located upstream of the filter, a second portion, another opening communicating with an area located downstream of the filter, a third part, a connecting conduit providing a connection between this opening and one of the inputs of the part, and, fourthly, another connecting conduit providing a connection between this
  • it may also comprise, on the one hand, yet another opening communicating with a second zone situated upstream of the filter, and, on the other hand, yet another connecting conduit providing a connection between this latter opening and another one of the other entrances to the room.
  • the invention also proposes a vehicle, possibly of automobile type, and comprising at least one enclosure and a heating / air-conditioning installation of the type presented above.
  • FIG. 1 schematically and functionally illustrates an example of a heating / air conditioning installation installed in a vehicle and equipped with an exemplary embodiment of an air analysis device according to the invention
  • FIG. 2 schematically illustrates, in a perspective view, the air analysis device of FIG. 1, and
  • FIG. 3 schematically illustrates, in a sectional view in a transverse plane, a part of the air analysis device of FIG. 2.
  • the purpose of the invention is notably to propose a DA air analysis device intended to equip a heating / air-conditioning system IC with filter (s) FA, itself intended to equip a system S comprising at least one enclosure H .
  • the heating / air conditioning system IC is part of a system S arranged in the form of a motor vehicle, such as a car.
  • the enclosure H of the vehicle S is therefore its cabin.
  • the invention is not limited to this type of system. It concerns in fact any type of land vehicle, maritime (or fluvial), or air, and any type of building, since it comprises at least one enclosure intended to be supplied with air treated by a heating / air-conditioning system. filter (s).
  • FIG. 1 shows schematically and functionally an example of a heating / air-conditioning installation IC implanted in a vehicle (or system) S and coupled to an exemplary embodiment of a DA air-analysis device according to FIG. invention.
  • the heating / air conditioning system IC is located in the CO engine compartment of the vehicle (or system) S and intended to supply the passenger compartment H with treated air.
  • this installation (heating / air conditioning) IC comprises in particular a blower (or motor-fan unit (or GMV)) PU, at least one FA filter, a cold loop (or air conditioning loop) BF, a hot loop ( or heating loop) BC, a VA power shutter, a VM mixing flap, and Vj distribution flaps.
  • a blower or motor-fan unit (or GMV)
  • GMV motor-fan unit
  • the PU blower is supplied with air coming from outside the cockpit H and / or air coming from the interior of the passenger compartment H (or recirculated (or recycled) air) by the supply flap (or air inlet) VA.
  • the outside air comes from a first conduit C1
  • the recirculated air comes from the passenger compartment H via a second leads C2.
  • the air flow rate supplied by the PU blower depends on the power level which has been automatically calculated by a computer CS which manages the installation IC, or else chosen (and possibly programmed) by a passenger of the vehicle S by means of a control member which is installed in the passenger compartment H, generally in the dashboard.
  • the FA filter is responsible for filtering into the air which feeds at least one chemical species in solid form (such as for example fine particles or dust) or in gaseous form (for example CO, O 3 , SO 2 , N0 2 , 0 2 or C0 2 ), and / or dehumidify the air that feeds it.
  • the filter FA is installed downstream of the PU pulser and upstream of the cold loop BF. But it could be implanted in other places after the CA sensor of the DA analysis device.
  • the installation IC could comprise several filters FA (at least two).
  • the cold loop BF is supplied with air by the PU blower. It comprises in particular an evaporator EV (traversed by the air which is derived from the PU blower), as well as a compressor, a condenser and a circuit in which circulates a refrigerant and which is coupled to the evaporator EV, to the compressor and to the condenser.
  • evaporator EV traversed by the air which is derived from the PU blower
  • a compressor a condenser and a circuit in which circulates a refrigerant and which is coupled to the evaporator EV, to the compressor and to the condenser.
  • the output of the evaporator EV is coupled to a duct which feeds, on the one hand, a mixing chamber CM having a first input whose access is controlled by the mixing flap VM, and, on the other hand, the hot loop BC whose access is controlled by the mixer VM and the output feeds a second input of the mixing chamber CM.
  • the hot loop BC is intended to heat the air which is derived (here) from the evaporator EV and which is intended for the passenger compartment H of the vehicle S, possibly after mixing with the less hot air present in the chamber CM mixing.
  • heating means MC comprising, for example, a heater, such as for example a heat exchanger (in which circulates a liquid which is optionally heated by electrical heating resistors (for example of the high-voltage CTP type), or by a heat-combustion heater), and / or an electric radiator, for example consisting of electric heating resistors (for example of the high-voltage CTP type).
  • These heating means MC are charged, when they operate, to heat the air passing through them and which is (here) coming from the evaporator EV, in order to deliver heated air to their outlet which supplies the second input of the mixing chamber CM.
  • the respective positions of the distribution flaps Vj depend on the distribution outlets at which a passenger of the vehicle S wishes that the treated air from the IC installation is delivered. These dispensing outlets may be chosen by the passenger by means of at least one control member installed in the passenger compartment H, generally in the dashboard.
  • the mixing flap VM is intended to control the distribution of air, which is provided by the VA supply flap (and which has here passed through the evaporator EV), between the mixing chamber CM and the heating means MC . It therefore allows to mix (or mix) in a controlled manner part of the air that has passed through the cold loop BF (possibly in operation) and the air that has passed through the hot loop BC. Its position depends on the operating mode of the IC installation. The mode of operation of the installation IC is chosen by a user of the vehicle S or by the computer CS, possibly as a function of choice made by a user of the vehicle S.
  • the implementation of the mode selected operating mode is controlled by the computer CS and involves an operation of at least one of the elements that are the PU blower, the cold loop BF, the hot loop BC, the VA supply flap, the mixing flap VM and distribution flaps Vj.
  • the air analysis device DA comprises at least one AC sensor, one piece PA and control means MC.
  • the part PA comprises, as illustrated in FIG. 2, at least three inputs Ej intended to be placed upstream of the sensor CA and to be supplied respectively with air coming from the outside, with air coming from the interior of the passenger compartment. H (or recirculated air), and filtered air from an area of the IC installation that is located downstream of the FA filter.
  • the piece PA is installed downstream of the supply shutter VA and secured to the outlet of a duct of the installation IC which is supplied with outside air and / or in recirculated air by this VA supply flap. Therefore, the first E1 and second E2 inputs directly receive both outdoor air and recirculated air. Therefore, in an alternative embodiment the first E1 and second E2 inputs could be merged to form a single common input.
  • the supply of the room PA with outside air or recirculated air depends on the placement of the supply flap VA in a position which only allows the passage of the outside air or in a position which allows only the passage of recirculated air.
  • the third input E3 is coupled to the output of a connection duct CL whose input is coupled to an opening defined in a duct of the installation IC which couple the FA filter to the cold loop BF.
  • This allows the analysis of the filtered air.
  • the embodiment illustrated in FIG. 2 is in fact intended to allow both a complete integration of the device DA in the installation IC and an offset of the device DA in the immediate vicinity of the installation IC and a coupling between this device DA and IC installation via at least three link conduits.
  • each input Ej of the device DA must be coupled to the installation IC via a connecting pipe to be supplied with air to be sampled, and the output of the device DA may be coupled to the IC installation via another connecting pipe, or communicate with the engine compartment CO to evacuate outside the analyzed air.
  • the IC installation must include at least three openings for the collection of a portion of the outside air that feeds it, recirculated air that feeds it and air that it has filtered through. by means of its FA filter.
  • a first opening may be defined in the first duct C1 and be coupled to the input of a first connecting duct whose output is coupled to the first input E1 of the room PA
  • a second opening may be defined in FIG.
  • a third opening can be defined in a duct coupling the filter FA to the loop BF cold and be coupled to the input of a third connecting conduit whose output is coupled to the third input E3 of the piece PA.
  • the part PA comprises a fourth input E4 which can be powered (via a connection duct) by air taken from a selected zone of the vehicle S or in a other selected area of the IC installation.
  • the sensor CA is arranged to perform measurements that are representative of the concentration in the air that feeds it (and more precisely that which sweeps it and which comes from an input Ej) of the species chemical (or of each chemical species) that is filtered by the FA filter and / or hygrometry in the air that feeds it (and more precisely who sweeps it and that comes from an inlet Ej).
  • this AC sensor may comprise at least one resistive element in MOX ("Metal Oxide Semiconductor") technology and having a resistance that varies as a function of the concentration of a single odorless gas, such as, for example, nitrogen dioxide. (or NO 2 ) or carbon monoxide (or CO), or odorous, such as a carbon gas type C x H y .
  • a single odorless gas such as, for example, nitrogen dioxide. (or NO 2 ) or carbon monoxide (or CO), or odorous, such as a carbon gas type C x H y .
  • this AC sensor can be arranged to determine the concentration of particles having diameters greater than a threshold or within a predefined range.
  • the AC sensor may, for example, be suitable for measuring the concentration of at least one chemical species selected from at least CO, O 3 , SO 2 , NO 2 , O 2 , CO 2 , PM 10 and PM2.5 (even PM1), and / or the hygrometry in the air that sweeps it.
  • the device (air analysis) DA comprises only one AC sensor. But it could include several (at least two).
  • the device DA comprises a conduit CD having an inlet secured to the component PA (downstream of its inputs Ej) and having an internal part in which the air circulates. to analyze and is housed at least a portion of the AC sensor.
  • This CD conduit also includes an output that is adapted to be coupled to the IC installation upstream of the FA filter. This coupling can be done either directly by securing to an input of a conduit of the installation IC or equipment of the latter (IC), such as for example its PU blower, or indirectly via a connecting conduit.
  • the output of the conduit CD could communicate with the engine compartment CO to evacuate outside air analyzed.
  • the sensor CA could be attached to a conduit of the installation IC having an input secured to the part PA (downstream of its inputs Ej) and having an internal part in which the air circulates. power supply (outside and / or recirculated).
  • the control means MC are adapted to selectively control the passage of air through one of the inputs Ej according to a received instruction so that the sensor AC analyzes this air.
  • the instruction may, for example, be issued from the computer CS. But it can come from another calculator of the vehicle S, such as that which is responsible for providing information at least to the driver of the vehicle S via the on-board man / machine interface.
  • the phases of analysis of the air may possibly require the placement of the VA supply flap in positions appropriate to each of them.
  • the efficiency of the filtering of the outside air and / or the recirculated air can be determined by making a comparison between the result of an analysis of the supply air (outside and / or recirculated) before the filtering by the filter FA and the result of an analysis of the air filtered by the filter FA.
  • the results of the measurements carried out by the AC sensor are transmitted to a computer of the vehicle S which is responsible for providing the passengers of the latter (S) with information relating to its operation, to the aerothermal energy in its passenger compartment H and to its external environment. .
  • This calculator is then responsible for informing the passengers of the vehicle S at least the level of pollution outside the passenger compartment H, the level of pollution in the passenger compartment H, and the efficiency of the air filtering. outside and / or recirculated air. It can also deduce from the results received the level of saturation or clogging of at least part of the FA filter, and request a replacement at least a part of the filter FA when this level becomes greater than a threshold.
  • the computer could trigger the transmission of pollution information (at least outside the vehicle S), by wave (possibly via the Internet) to neighboring or distant vehicles.
  • control means MC can be made in different ways. One of these ways is illustrated without limitation in Figures 1 to 3.
  • control means MC comprise a rotary disk DR and an electric motor ME.
  • the rotary disc DR is placed against the inputs Ej of the part PA and has an opening OV which is adapted to allow the passage of air through one of the inputs Ej when it is placed opposite it.
  • the electric motor ME is adapted to rotate the rotary disk DR to place its opening OV opposite an input Ej which corresponds to the instruction received.
  • This electric motor ME may, as shown without limitation, be secured to the wall of the conduit CD which is secured to the AC sensor and which is coupled to the rotary disk DR and the workpiece PA.
  • the electric motor ME rotates the rotary disk DR to place its opening OV opposite the first input E1, which obstructs all the others.
  • inputs E2 to E4 The outside air coming from the first duct C1 can then cross the only first entry E1 and the opening OV (arrow F1), then enter the duct CD to scan the CA sensor (arrow F2) to be analyzed by the latter ( IT).
  • the electric motor ME rotates the rotary disc DR to place its opening OV opposite the second input E2, which obstructs all the others. inputs E1, E3 and E4.
  • the interior air from the second conduit C2 can then pass through the only second input E2 and OV opening, then enter the conduit CD to scan the CA sensor to be analyzed by the latter (CA). Also likewise, if the instruction received is associated with the analysis of the filtered air, the electric motor ME rotates the rotary disk DR for place its OV opening next to the third input E3, which obstructs all other inputs E1, E2 and E4. The filtered air can then pass through only the third inlet E3 and the OV opening, and then enter the conduit CD to scan the AC sensor for analysis by the latter (CA).
  • the rotational drive of the rotary disk DR can be done via a wheel or a coupling gear RC rotated by the electric motor ME. If a coupling wheel is used, its peripheral edge and the peripheral edge of the rotary disc DR are preferably coated with a material facilitating the drive without slipping. If a coupling pinion is used, the peripheral edge of the rotary disk DR must include teeth intended to mesh with its own teeth.
  • the vacuum existing upstream of the blower allows automatic sampling of the air to be analyzed and thus the crossing of the inlet Ej selected by this air to be analyzed.
  • the device DA when the device DA is deported (and therefore when all its inputs Ej are coupled to the installation IC via connecting conduits), it must also include an electric air pump intended to suck in the air to pass through. Ej input selected.
  • This electric air pump may, for example, be a small turbine installed downstream of the AC sensor and whose power supply is controlled by the control means MC, possibly according to instructions from the computer supervising the installation IC or another onboard computer.
  • control means MC could comprise solenoid valves (hydraulic or pneumatic or mechanical) or flaps associated respectively with the different inputs Ej, replacing the rotary disk DR.
  • control means MC could comprise solenoid valves (hydraulic or pneumatic or mechanical) or flaps associated respectively with the different inputs Ej, replacing the rotary disk DR.
  • each entry Ej could be associated with his / her own sensor (s).
  • the invention offers several advantages, among which:

Abstract

A device for analysing air (DA) equips a heating/air conditioning facility comprising a filter for at least one chemical species contained in a feed air coming from outside and/or inside an enclosure and/or for dehumidifying said feed air. Said device (DA) comprises a sensor (CA) for taking measurements representative of the concentration of said chemical species and/or the humidity in the air that supplies same, a part (PA) comprising at least three inlets positioned upstream from the sensor (CA) and supplied respectively with air coming from the outside, air coming from inside the enclosure and filtered air coming from an area of the facility located downstream from the filter, and control means (MC) for selectively controlling the passage of air through one of the inlets depending on a received instruction in order for the sensor (CA) to analyse said air. The part (PA) and the means for controlling said device for analysing air (DA) are installed upstream from said filter (FA) and downstream from a supply shutter (VA) arranged to control the supply, to the facility (IC), of air coming from outside and/or of air coming from inside said enclosure (H).

Description

DISPOSITIF D'ANALYSE SÉLECTIVE D'AIRS FILTRÉS ET NON FILTRÉS, POUR UNE INSTALLATION DE CHAUFFAGE/CLIMATISATION D'UNE ENCEINTE  DEVICE FOR THE SELECTIVE ANALYSIS OF FILTERED AND UN-FILTERED AIRS FOR A HEATING / AIR CONDITIONING INSTALLATION OF AN ENCLOSURE
L'invention concerne les dispositifs d'analyse d'air qui sont destinés à équiper des installations de chauffage/climatisation munies de filtre(s) et destinées à alimenter en air traité une enceinte. The invention relates to air analysis devices which are intended to equip heating / air conditioning systems equipped with filter (s) and for supplying treated air to an enclosure.
Par ailleurs, cette invention concerne tout système comprenant au moins une enceinte devant être alimentée en air traité par une installation de chauffage/climatisation à filtre(s) et à volet d'alimentation chargé de contrôler son alimentation en air issu de l'extérieur et/ou en air issu de l'intérieur de l'enceinte (ou air recirculé). Par conséquent, elle concerne au moins les véhicules, éventuellement de type automobile, et les bâtiments.  Furthermore, this invention relates to any system comprising at least one enclosure to be supplied with air treated by a heating / air conditioning system with filter (s) and supply flap to control its air supply from the outside and / or air from the inside of the enclosure (or recirculated air). Therefore, it concerns at least vehicles, possibly of automobile type, and buildings.
On entend ici par « filtre » un équipement chargé de filtrer dans l'air qui l'alimente au moins une espèce chimique sous forme solide (comme par exemple des particules fines ou des poussières) ou sous forme gazeuse (comme par exemple CO, O3, SO2, NO2, O2 ou CO2), et/ou de déshumidifier cet air qui l'alimente. The term "filter" is used herein to mean equipment charged with filtering into the air which supplies it with at least one chemical species in solid form (for example fine particles or dust) or in gaseous form (for example CO, O 3 , SO 2 , NO 2 , O 2 or CO 2 ), and / or dehumidify this air which feeds it.
Certaines installations de chauffage/climatisation, et notamment celles qui équipent des véhicules, éventuellement automobiles, comprennent un dispositif d'analyse d'air chargé de contrôler la qualité de l'air devant alimenter au moins une enceinte (comme par exemple un habitacle). Ce dispositif comprend généralement un unique capteur chargé d'effectuer des mesures représentatives de la concentration d'au moins une espèce chimique (généralement un polluant sous forme gazeuse ou solide (particules)) dans l'air qui alimente l'installation qu'il équipe. Some heating / air conditioning systems, and in particular those that equip vehicles, possibly cars, include an air analysis device responsible for controlling the quality of the air to feed at least one enclosure (such as a passenger compartment). This device generally comprises a single sensor responsible for carrying out measurements representative of the concentration of at least one chemical species (generally a gaseous or solid pollutant (particles)) in the air supplying the installation that it equips. .
Lorsque le capteur détecte que la concentration d'une espèce chimique est supérieure à un seuil, il avertit son dispositif afin qu'il déclenche la mise en œuvre d'une stratégie adaptée d'alimentation de l'installation et/ou de dépollution de l'enceinte. Cette stratégie dépend du lieu où est implanté le capteur et donc de l'air qu'il peut analyser. Par exemple, lorsque le capteur est implanté en amont du volet d'alimentation et chargé d'analyser l'air extérieur, le franchissement d'un seuil de détection déclenche une interdiction de l'alimentation de l'enceinte en air extérieur (et donc seul de l'air recirculé (c'est-à-dire issu de l'enceinte) alimente l'installation), sauf pendant de très courtes périodes destinées à régénérer l'air intérieur en oxygène. When the sensor detects that the concentration of a chemical species is greater than a threshold, it warns its device so that it triggers the implementation of a suitable strategy for supplying the installation and / or cleaning up the water. 'pregnant. This strategy depends on the location of the sensor and therefore the air it can analyze. For example, when the sensor is located upstream of the supply flap and responsible for analyzing the outside air, the crossing of a detection threshold triggers a ban on the supply of the outside air chamber (and therefore only recirculated air (that is to say from the enclosure) feeds the installation), except for very short periods intended to regenerate the oxygen internal air.
Lorsque le capteur est implanté en aval du volet d'alimentation, il peut analyser l'air extérieur et l'air recirculé, et donc permet de connaître aussi bien le niveau de pollution à l'extérieur de l'enceinte que le niveau de pollution dans l'enceinte dans certains modes de fonctionnement de l'installation. On peut alors mettre en œuvre des stratégies un peu plus complexes que celle présentée dans le paragraphe précédent. Cependant ces stratégies demeurent encore trop limitées, notamment du fait que l'on ne peut connaître ni le niveau de pollution de l'air extérieur lorsque l'installation est alimentée en air recirculé, ni le niveau de pollution de l'air recirculé lorsque l'installation est alimentée en air extérieur. When the sensor is installed downstream of the supply flap, it can analyze the outside air and the recirculated air, and thus makes it possible to know both the level of pollution outside the enclosure and the level of pollution. in the enclosure in certain modes of operation of the installation. We can then implement strategies a little more complex than the one presented in the previous paragraph. However, these strategies are still too limited, in particular because we can not know the level of outdoor air pollution when the installation is supplied with recirculated air, nor the level of pollution of the recirculated air when installation is supplied with outside air.
Par ailleurs, les deux lieux d'implantation précités du capteur ne permettent pas de déterminer précisément l'efficacité du filtrage, par exemple pour en informer les personnes qui sont présentes dans l'enceinte et/ou pour demander un remplacement du filtre lorsque cette efficacité devient inférieure à un seuil. Moreover, the aforementioned two locations of the sensor do not make it possible to precisely determine the efficiency of the filtering, for example to inform the persons who are present in the enclosure and / or to request a replacement of the filter when this efficiency becomes lower than a threshold.
L'invention a donc notamment pour but d'améliorer la situation.  The invention is therefore particularly intended to improve the situation.
Elle propose notamment à cet effet un dispositif d'analyse d'air, d'une part, destiné à équiper une installation de chauffage/climatisation comportant au moins un filtre, propre à filtrer au moins une espèce chimique contenue dans un air d'alimentation issu de l'extérieur et/ou de l'intérieur d'une enceinte et/ou à déshumidifier cet air d'alimentation, et propre à alimenter en air traité cette enceinte, et, d'autre part, comprenant au moins un capteur propre à effectuer des mesures représentatives de la concentration de cette espèce chimique et/ou de l'hygrométrie dans l'air qui l'alimente.  It proposes for this purpose an air analysis device, on the one hand, intended to equip a heating / air conditioning system comprising at least one filter, suitable for filtering at least one chemical species contained in a supply air derived from the outside and / or inside of an enclosure and / or dehumidifying this supply air, and adapted to supply treated air to this enclosure, and, secondly, comprising at least one clean sensor to carry out measurements representative of the concentration of this chemical species and / or hygrometry in the air which feeds it.
Ce dispositif se caractérise par le fait qu'il comprend également : - une pièce comportant au moins trois entrées destinées à être placées en amont du capteur et à être alimentées respectivement en air issu de l'extérieur, en air issu de l'intérieur de l'enceinte et en air filtré issu d'une zone de l'installation qui est située en aval du filtre, et This device is characterized by the fact that it also comprises: - a part comprising at least three entries intended to be placed in upstream of the sensor and to be supplied respectively with air coming from the outside, with air coming from inside the enclosure and with filtered air coming from an area of the installation which is located downstream of the filter, and
- des moyens de contrôle propres à contrôler sélectivement le passage d'air au travers de l'une des entrées en fonction d'une instruction reçue afin que le capteur analyse cet air.  - Control means adapted to selectively control the passage of air through one of the inputs according to a received instruction so that the sensor analyzes this air.
Ainsi, il peut être désormais possible de connaître le niveau de pollution de l'air extérieur, le niveau de pollution de l'air recirculé et l'efficacité du filtrage de l'air extérieur et/ou de l'air recirculé, que l'installation soit alimentée en air extérieur ou en air recirculé.  Thus, it may now be possible to know the level of pollution of the outside air, the level of pollution of the recirculated air and the efficiency of the filtering of the outside air and / or the recirculated air, that the the installation is supplied with outside air or recirculated air.
Le dispositif d'analyse d'air selon l'invention peut comporter d'autres caractéristiques qui peuvent être prises séparément ou en combinaison, et notamment : The air analysis device according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular:
- ses moyens de contrôle peuvent comprendre, d'une part, un disque rotatif placé contre les entrées et comportant une ouverture propre à permettre le passage d'air au travers de l'une de ces entrées lorsqu'elle est placée en regard de celle-ci, et, d'autre part, un moteur électrique propre à entraîner en rotation le disque rotatif pour placer son ouverture en regard d'une entrée correspondant à l'instruction reçue ;  its control means can comprise, on the one hand, a rotating disk placed against the entrances and having an opening adapted to allow the passage of air through one of these inputs when it is placed opposite that and, on the other hand, an electric motor capable of driving in rotation the rotary disk to place its opening opposite an input corresponding to the instruction received;
- il peut également comprendre un conduit solidarisé à sa pièce et comportant une partie interne dans laquelle est logée une partie au moins du capteur et une sortie propre à être couplée à l'installation en amont du filtre ;  it may also comprise a duct secured to its part and having an internal part in which is housed at least a portion of the sensor and an output adapted to be coupled to the installation upstream of the filter;
- il peut également comprendre une pompe à air électrique propre à aspirer l'air devant traverser l'entrée sélectionnée.  - It may also include an electric air pump to suck the air to pass through the selected inlet.
L'invention propose également une installation de chauffage/ climatisation propre à alimenter en air traité une enceinte et comprenant au moins un filtre, propre à filtrer au moins une espèce chimique contenue dans un air d'alimentation issu de l'extérieur et/ou de l'intérieur de l'enceinte et/ou à déshumidifier cet air d'alimentation, et un dispositif d'analyse d'air du type de celui présenté ci-avant.  The invention also proposes a heating / air-conditioning system capable of supplying treated air to an enclosure and comprising at least one filter capable of filtering at least one chemical species contained in an air supply coming from outside and / or from inside the enclosure and / or dehumidify this supply air, and an air analysis device of the type shown above.
L'installation de chauffage/climatisation selon l'invention peut comporter d'autres caractéristiques qui peuvent être prises séparément ou en combinaison, et notamment : The heating / air conditioning system according to the invention can have other features that can be taken separately or in combination, including:
- les pièce et moyens de contrôle de son dispositif d'analyse d'air peuvent être installés en amont du filtre et en aval d'un volet d'alimentation qui est the parts and means of control of its air analysis device can be installed upstream of the filter and downstream of a supply flap which is
5 agencé pour contrôler son alimentation en air issu de l'extérieur et/ou en air issu de l'intérieur de l'enceinte ; Arranged to control its supply of air from outside and / or air from the interior of the enclosure;
- elle peut comprendre, d'une première part, un conduit d'alimentation alimenté en air par le volet d'alimentation et comprenant une sortie solidarisée à la pièce pour alimenter au moins l'une de ses sorties en air î o extérieur et/ou en air issu de l'enceinte, d'une deuxième part, une ouverture communiquant avec une zone située en aval du filtre, et, d'une troisième part, un conduit de liaison assurant une liaison entre cette ouverture et une autre des entrées de la pièce ;  it may comprise, firstly, a supply duct supplied with air by the supply flap and comprising an outlet secured to the room for supplying at least one of its outlets to outside air and / or in air from the enclosure, a second part, an opening communicating with an area located downstream of the filter, and, thirdly, a connecting conduit providing a connection between this opening and another of the inputs of the room ;
- en variante, elle peut comprendre, d'une première part, une ouverture 15 communiquant avec une première zone située en amont du filtre, d'une deuxième part, une autre ouverture communiquant avec une zone située en aval du filtre, d'une troisième part, un conduit de liaison assurant une liaison entre cette ouverture et l'une des entrées de la pièce, et, d'une quatrième part, un autre conduit de liaison assurant une liaison entre cette alternatively, it may comprise, firstly, an opening 15 communicating with a first zone located upstream of the filter, a second portion, another opening communicating with an area located downstream of the filter, a third part, a connecting conduit providing a connection between this opening and one of the inputs of the part, and, fourthly, another connecting conduit providing a connection between this
20 autre ouverture et une autre des entrées de la pièce ; Another opening and another of the entrances to the room;
elle peut également comprendre, d'une part, encore une autre ouverture communiquant avec une seconde zone située en amont du filtre, et, d'autre part, encore un autre conduit de liaison assurant une liaison entre cette dernière ouverture et encore une autre des entrées de la 25 pièce.  it may also comprise, on the one hand, yet another opening communicating with a second zone situated upstream of the filter, and, on the other hand, yet another connecting conduit providing a connection between this latter opening and another one of the other entrances to the room.
L'invention propose également un véhicule, éventuellement de type automobile, et comprenant au moins une enceinte et une installation de chauffage/climatisation du type de celle présentée ci-avant.  The invention also proposes a vehicle, possibly of automobile type, and comprising at least one enclosure and a heating / air-conditioning installation of the type presented above.
D'autres caractéristiques et avantages de l'invention apparaîtront à Other features and advantages of the invention will appear in
30 l'examen de la description détaillée ci-après, et des dessins annexés, sur lesquels : A review of the following detailed description and the accompanying drawings, in which:
- la figure 1 illustre schématiquement et fonctionnellement un exemple d'installation de chauffage/climatisation installée dans un véhicule et équipée d'un exemple de réalisation d'un dispositif d'analyse d'air selon l'invention, FIG. 1 schematically and functionally illustrates an example of a heating / air conditioning installation installed in a vehicle and equipped with an exemplary embodiment of an air analysis device according to the invention,
- la figure 2 illustre schématiquement, dans une vue en perspective, le dispositif d'analyse d'air de la figure 1 , et  FIG. 2 schematically illustrates, in a perspective view, the air analysis device of FIG. 1, and
- la figure 3 illustre schématiquement, dans une vue en coupe dans un plan transversal, une partie du dispositif d'analyse d'air de la figure 2.  FIG. 3 schematically illustrates, in a sectional view in a transverse plane, a part of the air analysis device of FIG. 2.
L'invention a notamment pour but de proposer un dispositif d'analyse d'air DA destiné à équiper une installation de chauffage/climatisation IC à filtre(s) FA, elle-même destinée à équiper un système S comprenant au moins une enceinte H.  The purpose of the invention is notably to propose a DA air analysis device intended to equip a heating / air-conditioning system IC with filter (s) FA, itself intended to equip a system S comprising at least one enclosure H .
Dans ce qui suit, on considère, à titre d'exemple non limitatif, que l'installation de chauffage/climatisation IC fait partie d'un système S agencé sous la forme d'un véhicule automobile, comme par exemple une voiture. L'enceinte H du véhicule S est donc son habitacle. Mais l'invention n'est pas limitée à ce type de système. Elle concerne en effet tout type de véhicule terrestre, maritime (ou fluvial), ou aérien, et tout type de bâtiment, dès lors qu'il comprend au moins une enceinte destinée à être alimentée en air traité par une installation de chauffage/climatisation à filtre(s).  In what follows, it is considered, by way of non-limiting example, that the heating / air conditioning system IC is part of a system S arranged in the form of a motor vehicle, such as a car. The enclosure H of the vehicle S is therefore its cabin. But the invention is not limited to this type of system. It concerns in fact any type of land vehicle, maritime (or fluvial), or air, and any type of building, since it comprises at least one enclosure intended to be supplied with air treated by a heating / air-conditioning system. filter (s).
On a schématiquement et fonctionnellement représenté sur la figure 1 un exemple d'installation de chauffage/climatisation IC implantée dans un véhicule (ou système) S et couplée à un exemple de réalisation d'un dispositif d'analyse d'air DA selon l'invention. Ici, l'installation de chauffage/climatisation IC est implantée dans le compartiment moteur CO du véhicule (ou système) S et destinée à alimenter l'habitacle H en air traité.  FIG. 1 shows schematically and functionally an example of a heating / air-conditioning installation IC implanted in a vehicle (or system) S and coupled to an exemplary embodiment of a DA air-analysis device according to FIG. invention. Here, the heating / air conditioning system IC is located in the CO engine compartment of the vehicle (or system) S and intended to supply the passenger compartment H with treated air.
Comme illustré, cette installation (de chauffage/climatisation) IC comprend notamment un pulseur (ou groupe moto-ventilateur (ou GMV)) PU, au moins un filtre FA, une boucle froide (ou boucle de climatisation) BF, une boucle chaude (ou boucle de chauffage) BC, un volet d'alimentation VA, un volet de mixage VM et des volets de distribution Vj.  As illustrated, this installation (heating / air conditioning) IC comprises in particular a blower (or motor-fan unit (or GMV)) PU, at least one FA filter, a cold loop (or air conditioning loop) BF, a hot loop ( or heating loop) BC, a VA power shutter, a VM mixing flap, and Vj distribution flaps.
Le pulseur PU est alimenté en air issu de l'extérieur de l'habitacle H et/ou en air issu de l'intérieur de l'habitacle H (ou air recirculé (ou recyclé)) par le volet d'alimentation (ou d'entrée d'air) VA. L'air extérieur est issu d'un premier conduit C1 , et l'air recirculé est issu de l'habitacle H via un second conduit C2. Le débit d'air fourni par le pulseur PU dépend du niveau de puissance qui a été automatiquement calculé par un calculateur CS qui gère l'installation IC, ou bien choisi (et éventuellement programmé) par un passager du véhicule S au moyen d'un organe de commande qui est installé dans l'habitacle H, généralement dans la planche de bord. The PU blower is supplied with air coming from outside the cockpit H and / or air coming from the interior of the passenger compartment H (or recirculated (or recycled) air) by the supply flap (or air inlet) VA. The outside air comes from a first conduit C1, and the recirculated air comes from the passenger compartment H via a second leads C2. The air flow rate supplied by the PU blower depends on the power level which has been automatically calculated by a computer CS which manages the installation IC, or else chosen (and possibly programmed) by a passenger of the vehicle S by means of a control member which is installed in the passenger compartment H, generally in the dashboard.
La position du volet d'alimentation VA, et donc les proportions d'air extérieur et d'air recirculé qui alimentent l'installation IC (et ici son pulseur PU), est/sont contrôlée(s) par le calculateur CS.  The position of the VA supply flap, and therefore the proportions of outside air and recirculated air that feed the installation IC (and here its PU blower), is / are controlled (s) by the computer CS.
Le filtre FA est chargé de filtrer dans l'air qui l'alimente au moins une espèce chimique sous forme solide (comme par exemple des particules fines ou des poussières) ou sous forme gazeuse (comme par exemple CO, 03, S02, N02, 02 ou C02), et/ou de déshumidifier cet air qui l'alimente. Dans l'exemple illustré non limitativement sur la figure 1 le filtre FA est installé en aval du pulseur PU et en amont de la boucle froide BF. Mais il pourrait être implanté en d'autres lieux situés après le capteur CA du dispositif d'analyse DA. Par ailleurs, on notera que l'installation IC pourrait comporter plusieurs filtres FA (au moins deux). The FA filter is responsible for filtering into the air which feeds at least one chemical species in solid form (such as for example fine particles or dust) or in gaseous form (for example CO, O 3 , SO 2 , N0 2 , 0 2 or C0 2 ), and / or dehumidify the air that feeds it. In the example shown non-limitatively in FIG. 1, the filter FA is installed downstream of the PU pulser and upstream of the cold loop BF. But it could be implanted in other places after the CA sensor of the DA analysis device. In addition, it should be noted that the installation IC could comprise several filters FA (at least two).
La boucle froide BF est alimentée en air par le pulseur PU. Elle comporte notamment un évaporateur EV (traversé par l'air qui est issu du pulseur PU), ainsi qu'un compresseur, un condenseur et un circuit dans lequel circule un fluide frigorigène et qui est couplé à l'évaporateur EV, au compresseur et au condenseur.  The cold loop BF is supplied with air by the PU blower. It comprises in particular an evaporator EV (traversed by the air which is derived from the PU blower), as well as a compressor, a condenser and a circuit in which circulates a refrigerant and which is coupled to the evaporator EV, to the compressor and to the condenser.
La sortie de l'évaporateur EV est couplée à un conduit qui alimente ici, d'une part, une chambre de mixage CM présentant une première entrée dont l'accès est contrôlé par le volet de mixage VM, et, d'autre part, la boucle chaude BC dont l'accès est contrôlé par le volet de mixage VM et la sortie alimente une seconde entrée de la chambre de mixage CM.  The output of the evaporator EV is coupled to a duct which feeds, on the one hand, a mixing chamber CM having a first input whose access is controlled by the mixing flap VM, and, on the other hand, the hot loop BC whose access is controlled by the mixer VM and the output feeds a second input of the mixing chamber CM.
La boucle chaude BC est destinée à chauffer l'air qui est issu (ici) de l'évaporateur EV et qui est destiné à l'habitacle H du véhicule S, éventuellement après un mélange avec de l'air moins chaud présent dans la chambre de mixage CM. Elle comprend des moyens de chauffage MC comportant, par exemple, un aérotherme, comme par exemple un échangeur de chaleur (dans lequel circule un liquide qui est éventuellement chauffé par des résistances électriques de chauffage (par exemple de type CTP haute tension), ou par un réchauffeur à combustion thermique), et/ou un radiateur électrique, par exemple constitué de résistances électriques de chauffage (par exemple de type CTP haute tension). The hot loop BC is intended to heat the air which is derived (here) from the evaporator EV and which is intended for the passenger compartment H of the vehicle S, possibly after mixing with the less hot air present in the chamber CM mixing. It comprises heating means MC comprising, for example, a heater, such as for example a heat exchanger (in which circulates a liquid which is optionally heated by electrical heating resistors (for example of the high-voltage CTP type), or by a heat-combustion heater), and / or an electric radiator, for example consisting of electric heating resistors (for example of the high-voltage CTP type).
Ces moyens de chauffage MC sont chargés, lorsqu'ils fonctionnent, de réchauffer l'air qui les traverse et qui est issu (ici) de l'évaporateur EV, afin de délivrer de l'air réchauffé sur leur sortie qui alimente la seconde entrée de la chambre de mixage CM.  These heating means MC are charged, when they operate, to heat the air passing through them and which is (here) coming from the evaporator EV, in order to deliver heated air to their outlet which supplies the second input of the mixing chamber CM.
La chambre de mixage CM est connectée à des conduits qui sont, ici, destinés à alimenter des bouches de distribution placées dans l'habitacle H du véhicule S et dédiées au dégivrage S1 , à l'aération centrale S2, aux pieds avant S3 et aux pieds arrière S4. L'accès à ces conduits est contrôlé par les volets de distribution Vj (ici au nombre de deux (j = 1 ou 2), mais il pourrait y en avoir plus, par exemple trois ou quatre). On notera que le volet de distribution V2 contrôle ici l'accès à un conduit qui alimente les bouches de pieds avant S3 et de pieds arrière S4. Mais on pourrait prévoir deux volets de distribution pour contrôler les accès respectivement aux bouches de pieds avant S3 et bouches de pieds arrière S4. On notera également que ces différents volets de distribution Vj sont généralement couplés entre eux par une cinématique qui est par exemple mue par un ou deux micromoteurs.  The mixing chamber CM is connected to ducts which are, here, intended to feed distribution outlets placed in the passenger compartment H of the vehicle S and dedicated to the defrosting S1, to the central ventilation S2, to the front legs S3 and to the S4 rear legs. Access to these conduits is controlled by the distribution flaps Vj (here two in number (j = 1 or 2), but there could be more, for example three or four). It will be noted that the distribution flap V2 here controls access to a duct that feeds the front foot valves S3 and rear legs S4. But we could provide two distribution flaps to control access respectively to the front foot vents S3 and S4 rear foot vents. It will also be noted that these different distribution flaps Vj are generally coupled together by a kinematics which is for example moved by one or two micromotors.
Les positions respectives des volets de distribution Vj dépendent des bouches de distribution au niveau desquelles un passager du véhicule S souhaite que l'air traité, issu de l'installation IC, soit délivré. Ces bouches de distribution peuvent être choisies par le passager au moyen d'au moins un organe de commande installé dans l'habitacle H, généralement dans la planche de bord.  The respective positions of the distribution flaps Vj depend on the distribution outlets at which a passenger of the vehicle S wishes that the treated air from the IC installation is delivered. These dispensing outlets may be chosen by the passenger by means of at least one control member installed in the passenger compartment H, generally in the dashboard.
Le volet de mixage VM est destiné à contrôler la répartition de l'air, qui est fourni par le volet d'alimentation VA (et qui a ici traversé l'évaporateur EV), entre la chambre de mixage CM et les moyens de chauffage MC. Il permet donc de mélanger (ou mixer) de façon contrôlée une partie de l'air qui a traversé la boucle froide BF (éventuellement en fonctionnement) et l'air qui a traversé la boucle chaude BC. Sa position dépend du mode de fonctionnement de l'installation IC. Le mode de fonctionnement de l'installation IC est choisi par un usager du véhicule S ou par le calculateur CS, éventuellement en fonction de choix effectué(s) par un usager du véhicule S. Dans tous les cas, la mise en œuvre du mode de fonctionnement choisi est contrôlée par le calculateur CS et implique un fonctionnement de l'un au moins des éléments que sont le pulseur PU, la boucle froide BF, la boucle chaude BC, le volet d'alimentation VA, le volet de mixage VM et les volets de distribution Vj. The mixing flap VM is intended to control the distribution of air, which is provided by the VA supply flap (and which has here passed through the evaporator EV), between the mixing chamber CM and the heating means MC . It therefore allows to mix (or mix) in a controlled manner part of the air that has passed through the cold loop BF (possibly in operation) and the air that has passed through the hot loop BC. Its position depends on the operating mode of the IC installation. The mode of operation of the installation IC is chosen by a user of the vehicle S or by the computer CS, possibly as a function of choice made by a user of the vehicle S. In all cases, the implementation of the mode selected operating mode is controlled by the computer CS and involves an operation of at least one of the elements that are the PU blower, the cold loop BF, the hot loop BC, the VA supply flap, the mixing flap VM and distribution flaps Vj.
Comme illustré sur les figures 1 et 2, le dispositif d'analyse d'air DA comprend au moins un capteur CA, une pièce PA et des moyens de contrôle MC.  As illustrated in FIGS. 1 and 2, the air analysis device DA comprises at least one AC sensor, one piece PA and control means MC.
La pièce PA comporte, comme illustré sur la figure 2, au moins trois entrées Ej destinées à être placées en amont du capteur CA et à être alimentées respectivement en air issu de l'extérieur, en air issu de l'intérieur de l'habitacle H (ou air recirculé), et en air filtré issu d'une zone de l'installation IC qui est située en aval du filtre FA. Par exemple, une première entrée E1 (j = 1 ) peut être alimentée en air extérieur, une deuxième entrée E2 (j = 2) peut être alimentée en air recirculé, et une troisième entrée E3 (j = 3) peut être alimentée en air filtré.  The part PA comprises, as illustrated in FIG. 2, at least three inputs Ej intended to be placed upstream of the sensor CA and to be supplied respectively with air coming from the outside, with air coming from the interior of the passenger compartment. H (or recirculated air), and filtered air from an area of the IC installation that is located downstream of the FA filter. For example, a first input E1 (j = 1) may be supplied with outside air, a second input E2 (j = 2) may be supplied with recirculated air, and a third input E3 (j = 3) may be supplied with air. filtered.
On notera que dans le mode de réalisation illustré sur la figure 2, la pièce PA est installée en aval du volet d'alimentation VA et solidarisée à la sortie d'un conduit de l'installation IC qui est alimenté en air extérieur et/ou en air recirculé par ce volet d'alimentation VA. Par conséquent, les première E1 et deuxième E2 entrées reçoivent directement aussi bien l'air extérieur que l'air recirculé. De ce fait, dans une variante de réalisation les première E1 et deuxième E2 entrées pourraient être fusionnées pour ne constituer qu'une seule entrée commune. Dans cette variante l'alimentation de la pièce PA en air extérieur ou en air recirculé dépend du placement du volet d'alimentation VA dans une position qui n'autorise que le passage de l'air extérieur ou dans une position qui n'autorise que le passage de l'air recirculé.  It will be noted that in the embodiment illustrated in FIG. 2, the piece PA is installed downstream of the supply shutter VA and secured to the outlet of a duct of the installation IC which is supplied with outside air and / or in recirculated air by this VA supply flap. Therefore, the first E1 and second E2 inputs directly receive both outdoor air and recirculated air. Therefore, in an alternative embodiment the first E1 and second E2 inputs could be merged to form a single common input. In this variant, the supply of the room PA with outside air or recirculated air depends on the placement of the supply flap VA in a position which only allows the passage of the outside air or in a position which allows only the passage of recirculated air.
Par ailleurs, dans le mode de réalisation illustré sur les figures 1 et 2 la troisième entrée E3 est couplée à la sortie d'un conduit de liaison CL dont l'entrée est couplée à une ouverture définie dans un conduit de l'installation IC qui couple le filtre FA à la boucle froide BF. Cela permet l'analyse de l'air filtré. Le mode de réalisation illustré sur la figure 2 est en fait destiné à permettre aussi bien une intégration complète du dispositif DA dans l'installation IC qu'un déport du dispositif DA à proximité immédiate de l'installation IC et un couplage entre ce dispositif DA et l'installation IC via au moins trois conduits de liaison. En effet, dans cette dernière hypothèse, au moins chaque entrée Ej du dispositif DA doit être couplée à l'installation IC via un conduit de liaison pour être alimentée en air à analyser prélevé, et la sortie du dispositif DA peut soit être couplée à l'installation IC via un autre conduit de liaison, soit communiquer avec le compartiment moteur CO pour évacuer à l'extérieur l'air analysé. Plus précisément, l'installation IC doit comprendre au moins trois ouvertures pour le prélèvement d'une partie de l'air extérieur qui l'alimente, de l'air recirculé qui l'alimente et de l'air qu'elle a filtré au moyen de son filtre FA. Par exemple, une première ouverture peut être définie dans le premier conduit C1 et être couplée à l'entrée d'un premier conduit de liaison dont la sortie est couplée à la première entrée E1 de la pièce PA, une deuxième ouverture peut être définie dans le second conduit C2 et être couplée à l'entrée d'un deuxième conduit de liaison dont la sortie est couplée à la deuxième entrée E2 de la pièce PA, et une troisième ouverture peut être définie dans un conduit couplant le filtre FA à la boucle froide BF et être couplée à l'entrée d'un troisième conduit de liaison dont la sortie est couplée à la troisième entrée E3 de la pièce PA. Moreover, in the embodiment illustrated in FIGS. 1 and 2, the third input E3 is coupled to the output of a connection duct CL whose input is coupled to an opening defined in a duct of the installation IC which couple the FA filter to the cold loop BF. This allows the analysis of the filtered air. The embodiment illustrated in FIG. 2 is in fact intended to allow both a complete integration of the device DA in the installation IC and an offset of the device DA in the immediate vicinity of the installation IC and a coupling between this device DA and IC installation via at least three link conduits. Indeed, in the latter case, at least each input Ej of the device DA must be coupled to the installation IC via a connecting pipe to be supplied with air to be sampled, and the output of the device DA may be coupled to the IC installation via another connecting pipe, or communicate with the engine compartment CO to evacuate outside the analyzed air. Specifically, the IC installation must include at least three openings for the collection of a portion of the outside air that feeds it, recirculated air that feeds it and air that it has filtered through. by means of its FA filter. For example, a first opening may be defined in the first duct C1 and be coupled to the input of a first connecting duct whose output is coupled to the first input E1 of the room PA, a second opening may be defined in FIG. the second duct C2 and being coupled to the input of a second connecting duct whose output is coupled to the second input E2 of the piece PA, and a third opening can be defined in a duct coupling the filter FA to the loop BF cold and be coupled to the input of a third connecting conduit whose output is coupled to the third input E3 of the piece PA.
On notera également que dans le mode de réalisation illustré sur la figure 1 et dans lequel le dispositif DA de la figure 2 est intégré dans l'installation IC, l'air analysé par le capteur CA poursuit son trajet dans l'installation IC mais ne peut pas être évacué vers l'extérieur de cette dernière (IC).  It will also be noted that in the embodiment illustrated in FIG. 1 and in which the device DA of FIG. 2 is integrated in the installation IC, the air analyzed by the sensor CA continues its journey in the installation IC but does not can not be evacuated to the outside of the latter (IC).
On notera également que dans le mode de réalisation illustré sur la figure 2, la pièce PA comprend une quatrième entrée E4 qui peut être alimentée (via un conduit de liaison) par de l'air prélevé dans une zone choisie du véhicule S ou dans une autre zone choisie de l'installation IC.  It will also be noted that in the embodiment illustrated in FIG. 2, the part PA comprises a fourth input E4 which can be powered (via a connection duct) by air taken from a selected zone of the vehicle S or in a other selected area of the IC installation.
Le capteur CA est agencé de manière à effectuer des mesures qui sont représentatives de la concentration dans l'air qui l'alimente (et plus précisément qui le balaye et qui provient d'une entrée Ej) de l'espèce chimique (ou de chaque espèce chimique) qui fait l'objet d'un filtrage par le filtre FA et/ou de l'hygrométrie dans l'air qui l'alimente (et plus précisément qui le balaye et qui provient d'une entrée Ej). The sensor CA is arranged to perform measurements that are representative of the concentration in the air that feeds it (and more precisely that which sweeps it and which comes from an input Ej) of the species chemical (or of each chemical species) that is filtered by the FA filter and / or hygrometry in the air that feeds it (and more precisely who sweeps it and that comes from an inlet Ej).
Par exemple, ce capteur CA peut comporter au moins un élément résistif en technologie MOX (« Métal Oxyde semi-conducteur ») et ayant une résistance variant en fonction de la concentration d'un unique gaz inodore, comme par exemple le dioxyde d'azote (ou NO2) ou le monoxyde de carbone (ou CO), ou odorant, comme par exemple un gaz carboné de type CxHy. En variante, ou en complément, ce capteur CA peut être agencé pour déterminer la concentration de particules présentant des diamètres supérieurs à un seuil ou compris dans un intervalle prédéfini. D'une manière générale, le capteur CA peut, par exemple, être propre à mesurer la concentration d'au moins une espèce chimique choisie parmi au moins CO, O3, SO2, NO2, O2, CO2, PM10 et PM2,5 (voire PM1 ), et/ou l'hygrométrie dans l'air qui le balaye. For example, this AC sensor may comprise at least one resistive element in MOX ("Metal Oxide Semiconductor") technology and having a resistance that varies as a function of the concentration of a single odorless gas, such as, for example, nitrogen dioxide. (or NO 2 ) or carbon monoxide (or CO), or odorous, such as a carbon gas type C x H y . Alternatively, or in addition, this AC sensor can be arranged to determine the concentration of particles having diameters greater than a threshold or within a predefined range. In general, the AC sensor may, for example, be suitable for measuring the concentration of at least one chemical species selected from at least CO, O 3 , SO 2 , NO 2 , O 2 , CO 2 , PM 10 and PM2.5 (even PM1), and / or the hygrometry in the air that sweeps it.
On notera que dans l'exemple illustré non limitativement sur les figures 1 et 2 le dispositif (d'analyse d'air) DA ne comprend qu'un seul capteur CA. Mais il pourrait en comporter plusieurs (au moins deux).  Note that in the example shown in non-limiting manner in Figures 1 and 2 the device (air analysis) DA comprises only one AC sensor. But it could include several (at least two).
On notera également que dans le mode de réalisation illustré sur les figures 1 et 2 le dispositif DA comprend un conduit CD ayant une entrée solidarisée à la pièce PA (en aval de ses entrées Ej) et comportant une partie interne dans laquelle circule l'air à analyser et est logée une partie au moins du capteur CA. Ce conduit CD comprend également une sortie qui est propre à être couplée à l'installation IC en amont du filtre FA. Ce couplage peut se faire soit directement par solidarisation à une entrée d'un conduit de l'installation IC ou d'un équipement de cette dernière (IC), comme par exemple son pulseur PU, soit indirectement via un conduit de liaison. Dans une variante de réalisation déjà évoquée, la sortie du conduit CD pourrait communiquer avec le compartiment moteur CO pour évacuer à l'extérieur l'air analysé. Dans la variante déportée, on peut envisager d'adjoindre au dispositif DA, en aval du capteur CA, un filtre destiné à absorber les différentes espèces analysées afin de permettre une « remise à zéro » de l'atmosphère régnant dans le conduit CD où est réalisée l'analyse, pour ne pas fausser les analyses suivantes. Dans une variante de réalisation non illustrée le capteur CA pourrait être rapporté sur un conduit de l'installation IC ayant une entrée solidarisée à la pièce PA (en aval de ses entrées Ej) et comportant une partie interne dans laquelle circule l'air d'alimentation (extérieur et/ou recirculé). It will also be noted that in the embodiment illustrated in FIGS. 1 and 2, the device DA comprises a conduit CD having an inlet secured to the component PA (downstream of its inputs Ej) and having an internal part in which the air circulates. to analyze and is housed at least a portion of the AC sensor. This CD conduit also includes an output that is adapted to be coupled to the IC installation upstream of the FA filter. This coupling can be done either directly by securing to an input of a conduit of the installation IC or equipment of the latter (IC), such as for example its PU blower, or indirectly via a connecting conduit. In an alternative embodiment already mentioned, the output of the conduit CD could communicate with the engine compartment CO to evacuate outside air analyzed. In the remote variant, it is conceivable to add to the device DA, downstream of the sensor CA, a filter intended to absorb the different species analyzed in order to allow a "reset" of the atmosphere prevailing in the conduit CD where carried out the analysis, so as not to distort the following analyzes. In an alternative embodiment not illustrated, the sensor CA could be attached to a conduit of the installation IC having an input secured to the part PA (downstream of its inputs Ej) and having an internal part in which the air circulates. power supply (outside and / or recirculated).
Les moyens de contrôle MC sont propres à contrôler sélectivement le passage d'air au travers de l'une des entrées Ej en fonction d'une instruction reçue afin que le capteur CA analyse cet air.  The control means MC are adapted to selectively control the passage of air through one of the inputs Ej according to a received instruction so that the sensor AC analyzes this air.
L'instruction peut, par exemple, être issue du calculateur CS. Mais elle peut provenir d'un autre calculateur du véhicule S, comme par exemple celui qui est chargé de fournir des informations au moins au conducteur du véhicule S via l'interface homme/machine embarquée.  The instruction may, for example, be issued from the computer CS. But it can come from another calculator of the vehicle S, such as that which is responsible for providing information at least to the driver of the vehicle S via the on-board man / machine interface.
On comprendra que grâce à l'invention, on peut désormais déterminer, quand on le souhaite et lors de courtes phases d'analyse (programmées ou requises), le niveau de pollution de l'air extérieur, le niveau de pollution de l'air recirculé et l'efficacité du filtrage de l'air extérieur et/ou de l'air recirculé, que l'installation soit alimentée en air extérieur ou en air recirculé. Selon le mode de réalisation envisagé pour le dispositif DA (tout intégré ou déporté), les phases d'analyse de l'air pourront éventuellement requérir le placement du volet d'alimentation VA dans des positions appropriées à chacune d'entre elles.  It will be understood that, thanks to the invention, it is now possible to determine, when desired, and during short analysis phases (programmed or required), the level of pollution of the outside air, the level of air pollution. recirculated and efficient filtering of outside air and / or recirculated air, whether the installation is supplied with outside air or recirculated air. According to the embodiment envisaged for the device DA (all integrated or remote), the phases of analysis of the air may possibly require the placement of the VA supply flap in positions appropriate to each of them.
On notera que l'efficacité du filtrage de l'air extérieur et/ou de l'air recirculé peut être déterminée en effectuant une comparaison entre le résultat d'une analyse de l'air d'alimentation (extérieur et/ou recirculé) avant le filtrage par le filtre FA et le résultat d'une analyse de l'air filtré par le filtre FA.  It should be noted that the efficiency of the filtering of the outside air and / or the recirculated air can be determined by making a comparison between the result of an analysis of the supply air (outside and / or recirculated) before the filtering by the filter FA and the result of an analysis of the air filtered by the filter FA.
Les résultats des mesures effectuées par le capteur CA sont transmis à un calculateur du véhicule S qui est chargé de fournir aux passagers de ce dernier (S) des informations relatives à son fonctionnement, à l'aérothermie dans son habitacle H et à son environnement extérieur. Ce calculateur se charge alors d'informer les passagers du véhicule S au moins du niveau de pollution à l'extérieur de l'habitacle H, du niveau de pollution dans l'habitacle H, et de l'efficacité du filtrage de l'air extérieur et/ou de l'air recirculé. Il peut également déduire des résultats reçus le niveau de saturation ou de colmatage d'une partie au moins du filtre FA, et demander un remplacement d'une partie au moins du filtre FA lorsque ce niveau devient supérieur à un seuil. On notera que le calculateur pourrait déclencher la transmission des informations de pollution (au moins à l'extérieur du véhicule S), par voie d'ondes (éventuellement via l'Internet), à destination de véhicules voisins ou distants. The results of the measurements carried out by the AC sensor are transmitted to a computer of the vehicle S which is responsible for providing the passengers of the latter (S) with information relating to its operation, to the aerothermal energy in its passenger compartment H and to its external environment. . This calculator is then responsible for informing the passengers of the vehicle S at least the level of pollution outside the passenger compartment H, the level of pollution in the passenger compartment H, and the efficiency of the air filtering. outside and / or recirculated air. It can also deduce from the results received the level of saturation or clogging of at least part of the FA filter, and request a replacement at least a part of the filter FA when this level becomes greater than a threshold. Note that the computer could trigger the transmission of pollution information (at least outside the vehicle S), by wave (possibly via the Internet) to neighboring or distant vehicles.
Les moyens de contrôle MC peuvent être réalisés de différentes manières. L'une de ces manières est illustrée non limitativement sur les figures 1 à 3.  The control means MC can be made in different ways. One of these ways is illustrated without limitation in Figures 1 to 3.
Dans l'exemple illustré, les moyens de contrôle MC comprennent un disque rotatif DR et un moteur électrique ME. Le disque rotatif DR est placé contre les entrées Ej de la pièce PA et comporte une ouverture OV qui est propre à permettre le passage d'air au travers de l'une des entrées Ej lorsqu'elle est placée en regard de celle-ci. Le moteur électrique ME est propre à entraîner en rotation le disque rotatif DR pour placer son ouverture OV en regard d'une entrée Ej qui correspond à l'instruction reçue. Ce moteur électrique ME peut, comme illustré non limitativement, être solidarisé à la paroi du conduit CD auquel est solidarisé le capteur CA et qui est couplé au disque rotatif DR et à la pièce PA.  In the example illustrated, the control means MC comprise a rotary disk DR and an electric motor ME. The rotary disc DR is placed against the inputs Ej of the part PA and has an opening OV which is adapted to allow the passage of air through one of the inputs Ej when it is placed opposite it. The electric motor ME is adapted to rotate the rotary disk DR to place its opening OV opposite an input Ej which corresponds to the instruction received. This electric motor ME may, as shown without limitation, be secured to the wall of the conduit CD which is secured to the AC sensor and which is coupled to the rotary disk DR and the workpiece PA.
Par exemple, si l'instruction reçue est associée à l'analyse de l'air extérieur, le moteur électrique ME entraîne en rotation le disque rotatif DR pour placer son ouverture OV en regard de la première entrée E1 , ce qui obstrue toutes les autres entrées E2 à E4. L'air extérieur issu du premier conduit C1 peut alors traverser la seule première entrée E1 et l'ouverture OV (flèche F1 ), puis pénétrer dans le conduit CD afin de balayer le capteur CA (flèche F2) pour être analysé par ce dernier (CA). De même, si l'instruction reçue est associée à l'analyse de l'air intérieur, le moteur électrique ME entraîne en rotation le disque rotatif DR pour placer son ouverture OV en regard de la deuxième entrée E2, ce qui obstrue toutes les autres entrées E1 , E3 et E4. L'air intérieur issu du second conduit C2 peut alors traverser la seule deuxième entrée E2 et l'ouverture OV, puis pénétrer dans le conduit CD afin de balayer le capteur CA pour être analysé par ce dernier (CA). Egalement de même, si l'instruction reçue est associée à l'analyse de l'air filtré, le moteur électrique ME entraîne en rotation le disque rotatif DR pour placer son ouverture OV en regard de la troisième entrée E3, ce qui obstrue toutes les autres entrées E1 , E2 et E4. L'air filtré peut alors traverser la seule troisième entrée E3 et l'ouverture OV, puis pénétrer dans le conduit CD afin de balayer le capteur CA pour être analysé par ce dernier (CA). For example, if the instruction received is associated with the analysis of the outside air, the electric motor ME rotates the rotary disk DR to place its opening OV opposite the first input E1, which obstructs all the others. inputs E2 to E4. The outside air coming from the first duct C1 can then cross the only first entry E1 and the opening OV (arrow F1), then enter the duct CD to scan the CA sensor (arrow F2) to be analyzed by the latter ( IT). Likewise, if the instruction received is associated with the analysis of the indoor air, the electric motor ME rotates the rotary disc DR to place its opening OV opposite the second input E2, which obstructs all the others. inputs E1, E3 and E4. The interior air from the second conduit C2 can then pass through the only second input E2 and OV opening, then enter the conduit CD to scan the CA sensor to be analyzed by the latter (CA). Also likewise, if the instruction received is associated with the analysis of the filtered air, the electric motor ME rotates the rotary disk DR for place its OV opening next to the third input E3, which obstructs all other inputs E1, E2 and E4. The filtered air can then pass through only the third inlet E3 and the OV opening, and then enter the conduit CD to scan the AC sensor for analysis by the latter (CA).
L'entraînement en rotation du disque rotatif DR peut se faire via une roue ou un pignon de couplage RC entraîné(e) en rotation par le moteur électrique ME. Si l'on utilise une roue de couplage, son bord périphérique et le bord périphérique du disque rotatif DR sont préférentiellement revêtus d'un matériau facilitant l'entraînement sans glissement. Si l'on utilise un pignon de couplage, le bord périphérique du disque rotatif DR doit comprendre des dents destinées à engrener ses propres dents.  The rotational drive of the rotary disk DR can be done via a wheel or a coupling gear RC rotated by the electric motor ME. If a coupling wheel is used, its peripheral edge and the peripheral edge of the rotary disc DR are preferably coated with a material facilitating the drive without slipping. If a coupling pinion is used, the peripheral edge of the rotary disk DR must include teeth intended to mesh with its own teeth.
On notera que lorsque le dispositif DA est intégré dans l'installation IC la dépression existant en amont du pulseur permet un prélèvement automatique de l'air à analyser et donc la traversée de l'entrée Ej sélectionnée par cet air à analyser. En revanche, lorsque le dispositif DA est déporté (et donc lorsque toutes ses entrées Ej sont couplées à l'installation IC via des conduits de liaison), il doit également comprendre une pompe à air électrique destinée à aspirer l'air devant traverser l'entrée Ej sélectionnée. Cette pompe à air électrique peut, par exemple, être une petite turbine installée en aval du capteur CA et dont l'alimentation électrique est contrôlée par les moyens de contrôle MC, éventuellement en fonction d'instructions émanant du calculateur supervisant l'installation IC ou d'un autre calculateur embarqué.  It will be noted that when the device DA is integrated in the installation IC the vacuum existing upstream of the blower allows automatic sampling of the air to be analyzed and thus the crossing of the inlet Ej selected by this air to be analyzed. On the other hand, when the device DA is deported (and therefore when all its inputs Ej are coupled to the installation IC via connecting conduits), it must also include an electric air pump intended to suck in the air to pass through. Ej input selected. This electric air pump may, for example, be a small turbine installed downstream of the AC sensor and whose power supply is controlled by the control means MC, possibly according to instructions from the computer supervising the installation IC or another onboard computer.
D'autres modes de réalisation des moyens de contrôle MC peuvent être envisagés. Ainsi, les moyens de contrôle MC pourraient comporter des électrovannes (hydrauliques ou pneumatiques ou mécaniques) ou des volets associé(e)s respectivement aux différentes entrées Ej, en remplacement du disque rotatif DR. Par ailleurs, chaque entrée Ej pourrait être associée à son/ses propre(s) capteur(s).  Other embodiments of the control means MC may be envisaged. Thus, the control means MC could comprise solenoid valves (hydraulic or pneumatic or mechanical) or flaps associated respectively with the different inputs Ej, replacing the rotary disk DR. Moreover, each entry Ej could be associated with his / her own sensor (s).
L'invention offre plusieurs avantages, parmi lesquels :  The invention offers several advantages, among which:
- une amélioration de la stratégie de pilotage de l'installation de chauffage/ climatisation et des éventuels moyens de dépollution de l'enceinte, - an improvement of the control strategy of the heating / air-conditioning system and any means of decontamination of the enclosure,
- une surveillance des niveaux de pollution dans l'enceinte et à l'extérieur de l'enceinte et de l'efficacité du filtrage, une mise à disposition des personnes présentes dans l'enceinte de nombreuses informations relatives à la pollution dans l'enceinte, à la pollution à l'extérieur de l'enceinte, et à l'efficacité du filtrage. - monitoring of pollution levels inside and outside the the enclosure and filtering efficiency, making available to those present in the enclosure many information relating to pollution in the enclosure, pollution outside the enclosure, and to the filtering efficiency.

Claims

REVENDICATIONS
1 . Installation de chauffage/climatisation (IC) pour alimenter en air traité une enceinte (H), ladite installation (IC) comprenant au moins un filtre (FA), propre à filtrer au moins une espèce chimique contenue dans un air d'alimentation issu de l'extérieur et/ou de l'intérieur de ladite enceinte (H) et/ou à déshumidifier cet air d'alimentation, et comprenant en outre un dispositif d'analyse d'air (DA) comprenant au moins un capteur (CA) propre à effectuer des mesures représentatives de la concentration de ladite espèce chimique et/ou de l'hygrométrie dans l'air qui l'alimente, ledit dispositif d'analyse d'air (DA) comprenant en outre i) une pièce (PA) comportant au moins trois entrées (Ej) destinées à être placées en amont dudit capteur (CA) et à être alimentées respectivement en air issu de l'extérieur, en air issu de l'intérieur de l'enceinte (H) et en air filtré issu d'une zone de ladite installation (IC) située en aval dudit filtre (FA), et ii) des moyens de contrôle (MC) propres à contrôler sélectivement le passage d'air au travers de l'une desdites entrées (Ej) en fonction d'une instruction reçue afin que ledit capteur (CA) analyse cet air, caractérisée en ce que la pièce (PA) et les moyens de contrôle (MC) dudit dispositif d'analyse d'air (DA) sont installés en amont dudit filtre (FA) et en aval d'un volet d'alimentation (VA) agencé pour contrôler l'alimentation de l'installation (IC) en air issu de l'extérieur et/ou en air issu de l'intérieur de ladite enceinte (H). 1. Heating / air conditioning (IC) installation for supplying treated air to an enclosure (H), said installation (IC) comprising at least one filter (FA), capable of filtering at least one chemical species contained in a feed air from outside and / or inside said enclosure (H) and / or dehumidify this supply air, and further comprising an air analysis device (DA) comprising at least one sensor (CA) able to carry out measurements representative of the concentration of said chemical species and / or hygrometry in the air which feeds it, said air analysis device (DA) further comprising i) a part (PA) having at least three inputs (Ej) intended to be placed upstream of said sensor (CA) and to be fed respectively with air coming from the outside, with air coming from inside the enclosure (H) and with filtered air from an area of said installation (IC) located downstream of said filter (FA), and ii) means of c control (MC) adapted to selectively control the passage of air through one of said inputs (Ej) according to a received instruction so that said sensor (CA) analyzes this air, characterized in that the piece (PA ) and the control means (MC) of said air analysis device (DA) are installed upstream of said filter (FA) and downstream of a supply flap (VA) arranged to control the supply of the installation (IC) of air coming from outside and / or air coming from the inside of said enclosure (H).
2. Installation selon la revendication précédente, caractérisée en ce qu'elle comprend i) un conduit d'alimentation alimenté en air par ledit volet d'alimentation (VA) et comprenant une sortie solidarisée à ladite pièce (PA) pour alimenter au moins l'une (E1 , E2) de ses sorties en air extérieur et/ou en air issu de l'enceinte (H), ii) une ouverture communiquant avec une zone située en aval dudit filtre (FA), et iii) un conduit de liaison assurant une liaison entre ladite ouverture et une autre (E3) desdites entrées (Ej) de ladite pièce (PA).  2. Installation according to the preceding claim, characterized in that it comprises i) a supply duct supplied with air by said supply flap (VA) and comprising an output secured to said part (PA) to feed at least l one (E1, E2) of its outlets in outside air and / or in air coming from the enclosure (H), ii) an opening communicating with an area located downstream of said filter (FA), and iii) a conduit of link providing a connection between said opening and another (E3) of said inputs (Ej) of said piece (PA).
3. Installation selon l'une des revendications 1 ou 2, caractérisée en ce qu'elle comprend i) une ouverture communiquant avec une première zone située en amont dudit filtre (FA), ii) une autre ouverture communiquant avec une zone située en aval dudit filtre (FA), iii) un conduit de liaison assurant une liaison entre ladite ouverture et l'une (E2) desdites entrées (Ej) de ladite pièce (PA), et iv) un autre conduit de liaison (CL) assurant une liaison entre ladite autre ouverture et une autre (E3) desdites entrées (Ej) de ladite pièce (PA). 3. Installation according to one of claims 1 or 2, characterized in that it comprises i) an opening communicating with a first zone located upstream of said filter (FA), ii) another opening communicating with an area located downstream of said filter (FA), iii) a connecting duct providing a connection between said opening and one (E2) of said inputs (Ej ) of said piece (PA), and iv) another connecting pipe (CL) providing a connection between said other opening and another (E3) of said inputs (Ej) of said piece (PA).
4. Installation selon la revendication précédente, caractérisée en ce qu'elle comprend i) encore une autre ouverture communiquant avec une seconde zone située en amont du filtre (FA), et ii) encore un autre conduit de liaison assurant une liaison entre cette dernière ouverture et encore une autre (E1 ) desdites entrées (Ej) de ladite pièce (PA).  4. Installation according to the preceding claim, characterized in that it comprises i) yet another opening communicating with a second zone located upstream of the filter (FA), and ii) yet another connecting conduit providing a connection between the latter opening and yet another (E1) of said inputs (Ej) of said piece (PA).
5. Installation selon l'une des revendications précédentes, caractérisée en ce que lesdits moyens de contrôle (MC) comprennent i) un disque rotatif (DR) placé contre lesdites entrées (Ej) et comportant une ouverture (OV) propre à permettre le passage d'air au travers de l'une desdites entrées (Ej) lorsqu'elle est placée en regard de cette entrée, et ii) un moteur électrique (ME) propre à entraîner en rotation ledit disque rotatif (DR) pour placer son ouverture (OV) en regard d'une entrée correspondant à ladite instruction reçue.  5. Installation according to one of the preceding claims, characterized in that said control means (MC) comprises i) a rotating disc (DR) placed against said inputs (Ej) and having an opening (OV) adapted to allow the passage air through one of said inputs (Ej) when it is placed opposite this input, and ii) an electric motor (ME) capable of rotating said rotary disk (DR) to place its opening ( OV) opposite an entry corresponding to said received instruction.
6. Installation selon l'une des revendications précédentes, caractérisée en ce qu'il comprend un conduit (CD) solidarisé à ladite pièce (PA) et comportant une partie interne dans laquelle est logée une partie au moins dudit capteur (CA) et une sortie propre à être couplée à ladite installation (IC) en amont dudit filtre (FA).  6. Installation according to one of the preceding claims, characterized in that it comprises a conduit (CD) secured to said part (PA) and having an inner portion in which is housed at least a portion of said sensor (CA) and a output adapted to be coupled to said installation (IC) upstream of said filter (FA).
7. Installation selon l'une des revendications précédentes, caractérisée en ce qu'il comprend une pompe à air électrique propre à aspirer l'air devant traverser l'entrée (Ej) sélectionnée.  7. Installation according to one of the preceding claims, characterized in that it comprises an electric air pump adapted to suck the air to pass through the inlet (Ej) selected.
8. Véhicule (S) comprenant au moins une enceinte (H), caractérisé en ce qu'il comprend en outre une installation de chauffage/climatisation (IC) selon l'une des revendications précédentes.  8. Vehicle (S) comprising at least one enclosure (H), characterized in that it further comprises a heating / air conditioning (IC) installation according to one of the preceding claims.
PCT/FR2015/053457 2015-01-14 2015-12-11 Device for selectively analysing filtered and unfiltered air, for a facility for heating/air conditioning an enclosure WO2016113478A1 (en)

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CN201580073516.1A CN107405976B (en) 2015-01-14 2015-12-11 Device for selectively analyzing filtered and unfiltered air for a heating/air conditioning system of a housing
EP15819847.3A EP3245081A1 (en) 2015-01-14 2015-12-11 Device for selectively analysing filtered and unfiltered air, for a facility for heating/air conditioning an enclosure

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FR1550276A FR3031574B1 (en) 2015-01-14 2015-01-14 DEVICE FOR SELECTIVELY ANALYZING AIRS FILTERS AND NON-FILTERS, FOR A HEATING / AIR CONDITIONING INSTALLATION OF AN ENCLOSURE
FR1550276 2015-01-14

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FR3031574A1 (en) 2016-07-15
CN107405976B (en) 2020-11-06
CN107405976A (en) 2017-11-28
FR3031574B1 (en) 2019-03-29
CN107405976A8 (en) 2018-01-12
EP3245081A1 (en) 2017-11-22

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