• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A device (DC) controls the quality of the air supplying an enclosure associated with first (C1) and second (C2) ducts respectively supplied with external and recirculated air, a third duct (C3) supplied with air by the first (C1) ) and second (C2) ducts, and access means (MA1, MA2) controlling the external air access and recirculated to the third duct (C3) according to a distribution setpoint. This device (DC) comprises measurement means (MM) for measuring the concentration of at least two chemical species present in the air contained in the third conduit (C3), and control means (MC) arranged to deliver successively N different distribution instructions, to order the realization of concentration measurements for each of these distribution instructions, and to deduce from these concentration measurements an optimum distribution setpoint for inducing a supply of the third duct (C3) in air having a optimal quality.
    公开号:FR3028954A1
    申请号:FR1461379
    申请日:2014-11-24
    公开日:2016-05-27
    发明作者:Vincent Aubry；Denis Dumur；Eddy Carvalho
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to devices which are intended to control the quality of the air, and to control the quality of the air supplying an enclosure, by checking the instructions of access means as a function of measurements of chemical concentrations. air supplying an enclosure. As known to those skilled in the art, in certain fields, such as that of vehicles, generally of the automotive type, a control device (or monitoring device) is used to control the quality of the air in an enclosure (such as for example a cockpit). This control device comprises measurement means for performing measurements representative of the concentrations of at least two chemical species (generally pollutants in gaseous or solid form (particles)) in the air that must feed this cabin. When it is desired to determine the concentration of polluting gases, it is possible to use at least one sensor having one or more resistive elements in MOX ("Metal Oxide Semiconductor") technology, each resistive element having a resistance varying according to the concentration. a single odorless gas, such as nitrogen dioxide (or NO2) or carbon monoxide (or CO), or odorous, such as a type CxHy carbon gas. When it is desired to determine the concentration of particles having diameters greater than a threshold or within a predefined interval, a laser module can be used to illuminate the air to be analyzed and to perform optical counting. When the measuring means detect that the concentration of a chemical species is greater than a threshold, they warn the control device of the control device that prohibit the supply of the passenger compartment outside air (and therefore only air recirculated (that is to say from the cockpit) feeds the latter), except for very short periods intended to regenerate the oxygen internal air. This "binary" operation is not optimal in the measurement 3028954 2 where the supply of the passenger compartment with exclusively recirculated air is only rarely optimal to maintain simultaneously below their respective thresholds the concentrations of the majority of chemical species. In addition, this almost exclusively recirculated air supply is not very healthy, especially since it induces a rapid increase in the concentration of CO2. The invention is therefore particularly intended to improve the situation. It proposes for this purpose a device for controlling the quality of the air supplying an enclosure which is associated with first and second ducts respectively supplied with outside air and recirculated air, with a third duct supplied with air by the first and second ducts and adapted to supply air to the passenger compartment, and to access means arranged to control the access of external air and recirculated to the third duct according to a distribution set point.
    [0002] This device is characterized in that it comprises: measuring means capable of measuring the concentration of at least two chemical species present in the air contained in the third conduit, and control means arranged to deliver successively N 20 different distribution instructions, with N 2, to order the realization of concentration measurements by the measuring means for each of these distribution instructions, and to deduce from these concentration measurements an optimal distribution setpoint suitable for inducing a supply of the third air duct having optimum quality.
    [0003] Thus, true air quality control can be achieved by adjusting the air distribution according to the current pollution conditions, and not a binary control. The control device according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular: in a first embodiment, its control means can be arranged to deduce concentration measurements from a setpoint optimum distribution for the means of access which is adapted to induce a supply of the third air duct having an optimum quality corresponding to a majority of concentrations of the chemical species respectively lower than associated thresholds; 5 - in a second embodiment, its control means may be arranged to deduce from concentration measurements an optimum distribution set point for the access means which is capable of inducing a supply of the third air duct having an optimum quality corresponding to at concentrations of the chemical species all respectively lower than associated thresholds; its control means can be arranged to estimate a recirculated air quality induced by another distribution setpoint determined by a computer of a heating and / or air-conditioning installation associated with the enclosure, based on the measurements of concentrations. and to determine a value representative of a difference between this estimated quality and the optimum quality; its control means can be arranged to estimate a temporal evolution of the quality of the recirculated air with respect to the quality of the outside air in the presence of filtration means placed downstream of the third duct, from the measurements of concentrations, and to estimate a value of a filtration efficiency parameter as a function of this estimated time evolution; its measuring means may be able to measure the respective concentrations of at least two chemical species chosen from at least CO, O3, SO2, NO2, O2, CO2, PM10 and PM2.5; its control means can be adapted to trigger the operation of a blower so that it sucks in the third duct the outside air and the recirculated air during the concentration measurements. The invention also proposes a vehicle, possibly of automobile type, and comprising, firstly, at least one enclosure defining a passenger compartment, a second part, a heating and / or air conditioning installation comprising first and second ducts fed respectively with outside air and recirculated air, a third duct 3028954 4 supplied with air by the first and second ducts and suitable for supplying air to the passenger compartment, and access means arranged to control the access of outside airs; and recirculated to the third duct according to a distribution instruction, and, thirdly, a control device of the type of that 5 presented above. Other features and advantages of the invention will become apparent from consideration of the following detailed description, and the accompanying drawings, in which: FIG. 1 schematically and functionally illustrates part of a heating installation and / or air conditioning which is associated with an exemplary embodiment of an air quality control device according to the invention, and Figures 2A to 2C schematically illustrate and respectively, within three diagrams, curves of evolution of concentration measurements of three different chemical species according to flap positions defined by distribution instructions determined by a control device according to the invention. The invention aims in particular to provide a DC control device for controlling the quality of the air supplying at least one enclosure. In what follows, it is considered, by way of non-limiting example, that the enclosure is a passenger compartment of a vehicle, possibly of automotive type (such as a car). But the invention is not limited to this application. It concerns any system, installation or building 25 comprising at least one chamber supplied with air in a controlled manner and in which the quality of the air must be monitored. Consequently, it concerns in particular vehicles (land, sea (or fluvial) and air), installations (possibly industrial type), houses and buildings (including theaters).
    [0004] FIG. 1 shows schematically and functionally first C1 and second C2 conduits connected to a third conduit C3 whose access is controlled by access means MA1 and MA2, as well as a quality control device. DC air according to the invention.
    [0005] The first duct C1 is intended to be supplied with outside air (arrow F1). The second conduit C2 is intended to be supplied with recirculated air from an enclosure (here a vehicle interior, by way of non-limiting example) (arrow F2). The third conduit C3 is supplied with air by the first 5 C1 and second C2 ducts and adapted to supply air to the enclosure (arrow F3). The access means MA1 and MA2 are arranged to control the access of the outside air and recirculated air to the third duct C3 according to a distribution instruction. In what follows, it is considered, by way of non-limiting example, that the first C1, second C2 and third C3 ducts and access means MA1 and MA2 are part of a heating and / or air conditioning system. a vehicle comprising the enclosure (which then defines a cabin). But this is not obligatory. Indeed, the first C1, second C2 and third C3 ducts and / or the access means MA1 and MA2 could possibly be part of the DC control device. Furthermore, it will be noted that in the example illustrated nonlimitingly in FIG. 1, the access means MA1 and MA2 comprise first V1 and second V2 flaps respectively installed in the first C1 and second C2 ducts and whose respective positions are fixed. by first ME1 20 and second ME2 electric motors according to distribution instructions. But in a first variant, the access means MA1 and MA2 could comprise first and second solenoid valves respectively installed in the first C1 and second C2 ducts. In a second variant, the access means MA1 and MA2 could comprise a single flap installed at the entrance of the third duct C3 and whose position is fixed by a single electric motor according to a distribution instruction. The heating and / or air-conditioning installation comprises an AC calculator which is responsible for determining distribution instructions for the access means MA1 and MA2 (and more specifically here for their first ME1 and second ME2 electric motors), depending on indoor and outdoor aerothermal parameters and operating choices made by a user of the vehicle. Each distribution set point is intended to define the percentage of outside air and the percentage of recirculated air which must constitute the air present in the third duct C3. It will be understood that in the presence of two flaps MA1 and MA2, each distribution setpoint comprises a first part defining the position 5 of the first flap MA1 and a second part defining the position of the second flap MA2. But in the presence of a single component each distribution instruction includes only one part defining the position of this component. As illustrated in FIG. 1, a control device (of air quality) DC according to the invention comprises at least measuring means MM and control means MC. The measurement means MM are arranged so as to measure the concentration of at least two chemical species present in the air which is contained in the third conduit C3 and therefore which is derived from the first conduit C1 and / or the second conduit C2 , according to the distribution instruction which is in use at the moment considered. It will be noted that in the nonlimiting example illustrated in FIG. 1, the measuring means MM comprise two analysis sensors CA1 and CA2 implanted in the third conduit C3. The term "analysis sensor" herein means a sensor responsible for carrying out measurements which are representative of the concentration of at least one chemical species (in gaseous or solid form (particles)) in the air which is contained in the third conduit C3. For example, a first sensor CA1 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, carbon dioxide. nitrogen (or NO2) or carbon monoxide (or CO), or odorous, such as a carbon gas type CxHy. Preferably, this first sensor CA1 comprises at least two different resistive elements so as to measure first values of at least two resistors representative of the respective concentrations of at least two different gases.
    [0006] For example, the second sensor CA2 may be arranged to determine the concentration of particles having diameters greater than a threshold or within a predefined range. To do this, it can, as illustrated, comprise an ML laser module, generating a photon beam 5 charged with illuminating the air in a small portion of the third conduit C3 and comprising optical counting means, as well as a trap with PF beam. In general, the measuring means MM may, for example, be suitable for measuring the respective concentrations of at least two chemical species chosen from at least CO, O 3, SO 2, NO 2, O 2, CO 2, PM 10 and PM 2. 5. The control means MC are firstly arranged to successively deliver N different distribution instructions, with N 2, and to order the realization of concentration measurements by the measuring means MM for each of these distribution instructions. For example, N can be chosen equal to three, four, five or six or more. It will be noted that in the exemplary embodiment shown in non-limiting manner in FIG. 1, the control means MC are part of the computer CA. But this is not obligatory. Indeed, they themselves could constitute a computer dedicated to the control of the air quality and coupled to the possible AC computer, directly or indirectly, for example via a communication network embedded in the vehicle (possibly of type multiplex). Therefore, the control means MC can be made either in the form of a combination of 25 software modules (or computer (or "software")) and electronic circuits (or "hardware"), either only in the form electronic circuits (such as a specialized programmable circuit ASIC type ("Application-Specific Integrated Circuit")). It will also be noted that the DC control device (and in particular its measurement means MM, its control means MC and its possible access means MA1, MA2) may be optionally embodied in a MEMS technology ("Microelectromotion"). Mechanical System "). In the illustrated example, it is the AC computer that is responsible for addressing to the access means MA1 and MA2 (and more precisely here to their first ME1 and second ME2 electric motors) each of the N distribution instructions in front of to be successively used, on the order of the control means MC. Moreover, it is also the CA computer which is responsible (here) for sending to the measuring means MM the N requests for performing concentration measurements, in synchronism with the N distribution instructions, on the order of the means of measurement. MC control. The control means MC are also arranged to deduce from the concentration measurements, made at their request by the measuring means MM, an optimum distribution set point which is able to induce a supply of the third conduit C3 with air having a optimal quality. These concentration measurements are here transmitted to the computer CA by the measuring means MM, directly or indirectly, for example via the on-board communication network, and the computer CA is responsible for communicating them to the control means MC. The term "optimum quality" here means the best quality of air that can be obtained in the third conduit C3, after having tried the N different distribution instructions. The choice of one of these N distribution instructions may result from a compromise based on the application of at least one predefined rule, since the concentrations of the various chemical species analyzed do not all evolve, a priori, of linear and identical, and some chemical species may be considered as priorities over others (for example, because they are more dangerous for health). As a variant, this choice may result from a configuration defined by the user of the vehicle via a man / machine interface and a dedicated programming menu. Indeed, some chemical species may have priority over others for a user, for example because of chronic health problems. By way of exemplary embodiment, the control means MC may be arranged to deduce from the concentration measurements an optimal distribution set point for the access means MA1 and MA2 which is capable of inducing a supply of the third duct C3 in air. having an optimum quality which corresponds to a majority of chemical species concentrations respectively lower than associated thresholds. These thresholds are preferably predefined. In a first variant embodiment, the control means MC may be arranged to deduce, from the concentration measurements, an optimum distribution set point for the access means MA1 and MA2 which is capable of inducing a supply of the third duct C3 in air having an optimal quality which corresponds to concentrations of the chemical species all lower respectively to associated thresholds. These thresholds are preferably predefined.
    [0007] In a second variant embodiment, the control means MC may be arranged to deduce, from the concentration measurements, an optimum distribution set point for the access means MA1 and MA2 which is capable of inducing a supply of the third duct C3 with air having an optimum quality which corresponds to one or two concentrations of chemical species chosen by the user and all respectively lower than associated thresholds. These thresholds are preferably predefined, but they could be chosen by the user, for example as a function of known sensitivity (s) and / or allergy (s) to chemical species. FIGS. 2A to 2C diagrammatically illustrate, in three diagrams, examples of evolution curves of concentration measurements Cj (j = 1 to 3) of three different chemical species (j) as a function of pmAi positions. flaps MAi (i = 1 or 2) defined by distribution instructions determined by the control means MC. It is recalled that in the example described each distribution setpoint comprises a first part defining the position pmAi of the first part MA1 and a second part defining the position PmA2 of the second part MA2. For example, the first curve C1 (top) represents the CO2 concentration measurements, the second curve C2 (the middle) represents the SO2 concentration measurements, and the third curve C3 (bottom) represents the concentration measurements. volatile organic compounds. In each diagram the reference PMA1 max designates the maximum open position (100%) of the first shutter MA1, the reference pMA2max designates the maximum open position (100%) of the second shutter MA2, the reference Cjimax denotes the concentration maximum of the chemical species j (j = 1 to 3) when the flap MAi (i = 1 or 2) is in its maximum open position n r-MAimax, and the reference Sj denotes the maximum permissible concentration for the chemical species j. On the other hand, in each diagram the shaded rectangle corresponds to the zone (open position / concentration) that is allowed ("safe") for the chemical species j considered. As can be seen in the example illustrated in FIGS. 2A to 2C, the three gray rectangles have a small common overlap area. Consequently, the control means MC can determine 10 within this common overlap area a pair pc of first and second positions of the flaps MAi and define an optimum distribution setpoint with this pair pc. It should be noted that to facilitate the supply of outside air and recirculated air into the third duct C3, it is advantageous to use a suction blower PA. For example, and as illustrated without limitation in FIG. 1, this blower PA may be installed inside the third duct C3, preferably in a downstream part (with respect to the direction of air flow (arrow F3)) . This PA blower can be part of the heating and / or air conditioning installation, and in this case its operation and its flow (when variable) are controlled by the CA computer. Alternatively, the blower PA could be part of the DC control device. But in one case, as in the others, the control means MC are capable of triggering its operation so that it (PA) sucks in the third duct C3 the outside air and the recirculated air during the measurements of concentrations effected consecutively to the use of N different and successive distribution instructions. This makes it possible to facilitate measurements because of the presence of a larger amount of air in the third conduit C3.
    [0008] It will also be noted that the control means MC may optionally be arranged to estimate a quality of the recirculated air induced by another distribution setpoint determined by the computer CA of the possible heating and / or air conditioning system (associated with the 3028954 11 of the vehicle), from the measurements of concentrations made subsequent to the use of N different and successive distribution instructions. In this case, the control means MC are arranged to determine a value which is representative of a difference between this estimated quality and the optimum quality resulting from the optimum distribution setpoint used. This value is intended to be displayed on a screen (here) of the vehicle. For example, it represents a percentage gain in terms of reducing pollutants in the air present in the passenger compartment. This option is intended to indicate to a passenger of the vehicle the effectiveness of the control of the quality of the air which is carried out by the DC control device. It will also be noted that the control means MC may possibly be arranged to estimate a temporal evolution of the quality of the recirculated air with respect to the quality of the outside air in the presence of filtration means placed downstream of the third conduit C3. , from the measurements of concentrations carried out following the use of N different and successive distribution instructions. In this case, the control means MC are arranged to estimate a value of a filtration efficiency parameter as a function of this estimated time evolution.
    [0009] This other option is intended to indicate to a passenger of the vehicle the efficiency of the filtration of the air which is carried out. The invention offers several advantages, among which: it makes it possible to have relatively reliable concentration evolution curves since each series of concentration measurements is carried out in a short period of time, and therefore with the same drift of the means; of measurement, which makes it possible to use less expensive analysis sensors. This is not the case with the control devices of the prior art since they react according to a single unreliable measurement because of the drift which is unknown, it avoids having to use first means. measuring device for the analysis of the outside air and the second measuring means for the analysis of recirculated air, which have respective unknown drifts and 3028954 12 generally different, - it allows a real control of the quality of the air by adaptation of the air distribution according to the current pollution conditions, and not a binary control, 5 - it makes it possible to inform the users about the evolution (and in particular the improvement) of the quality of the air. in the enclosure they occupy.
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. Device (DC) for controlling the quality of the air supplying an enclosure associated with first (C1) and second (C2) conduits supplied respectively with outside air and recirculated air, with a third duct (C3) supplied with air by said first (C1) and second (C2) conduits and adapted to supply air to said enclosure, and to access means (MA1, MA2) arranged to control the access of said external and recirculated air to said third conduit (C3) according to a distribution instruction, characterized in that it comprises i) measuring means (MM) capable of measuring the concentration of at least two chemical species present in the air contained in said third conduit (C3) and ii) control means (MC) arranged to successively deliver N different distribution instructions, with N 2, to order the realization of concentration measurements by said measuring means (MM) for each of said distribution instructions. and to derive from said concentration measurements an optimal distribution setpoint for inducing a supply of said third conduit (C3) in air having an optimum quality. 20
    [0002]
    2. Device according to claim 1, characterized in that said control means (MC) are arranged to deduce from said concentration measurements an optimum distribution set point for said access means (MA1, MA2) adapted to induce a supply of said third conduit (C3) in air having an optimum quality corresponding to a majority of 25 concentrations of said chemical species respectively lower than associated thresholds.
    [0003]
    3. Device according to claim 1, characterized in that said control means (MC) are arranged to deduce from said concentration measurements an optimum distribution set point for said access means (MA1, MA2) adapted to induce a supply of said third conduit (C3) in air having an optimum quality corresponding to concentrations of said chemical species all respectively lower than associated thresholds. 3028954 14
    [0004]
    4. Device according to one of claims 1 to 3, characterized in that said control means (MC) are arranged to estimate a recirculated air quality induced by another distribution setpoint determined by a computer (CA) d a heating and / or air conditioning installation associated with said enclosure, from said concentration measurements, and to determine a value representative of a difference between this estimated quality and said optimum quality.
    [0005]
    5. Device according to one of claims 1 to 4, characterized in that said control means (MC) are arranged to estimate a temporal evolution of the quality of the recirculated air with respect to the quality of the outside air in the presence of filtration means placed downstream of said third conduit (C3), from said concentration measurements, and for estimating a value of a filtration efficiency parameter as a function of said estimated time evolution. 15
    [0006]
    6. Device according to one of claims 1 to 5, characterized in that said measuring means (MM) are adapted to measure the respective concentrations of at least two chemical species selected from a group comprising CO, O3, SO2, NO2 , 02, CO2, PM10 and PM2.5.
    [0007]
    7. Device according to one of claims 1 to 6, characterized in that said control means (MC) are adapted to trigger the operation of a blower (PA) so that it sucks in said third conduit (C3) said outside air and said recirculated air during said concentration measurements.
    [0008]
    8. Vehicle comprising at least one enclosure defining a passenger compartment and a heating and / or air conditioning system comprising first (C1) and second (C2) ducts respectively supplied with outside air and recirculated air, a third duct (C3) supplied with in air by said first (C1) and second (C2) ducts and adapted to supply air to said passenger compartment, and access means (MA1, MA2) arranged to control the access of said external airs and recirculated to said third duct (C3 ) according to a distribution instruction, characterized in that it further comprises a control device (DC) according to one of the preceding claims.
    [0009]
    9. Vehicle according to claim 8, characterized in that it is of the automotive type.
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    同族专利:
    公开号 | 公开日
    FR3028954B1|2020-12-18|
    WO2016083697A1|2016-06-02|
    引用文献:
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    US6758739B1|2003-03-04|2004-07-06|Delphi Technologies, Inc.|Air quality system for a vehicle|
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    US20110046846A1|2009-08-18|2011-02-24|Toyota Motor Engineering & Manufacturing North America, Inc.|Process and system for controlling air quality within an interior of a motor vehicle|WO2017203131A1|2016-05-26|2017-11-30|Valeo Systemes Thermiques|Air quality system for a motor vehicle|
    FR3052235A1|2016-06-03|2017-12-08|Peugeot Citroen Automobiles Sa|DEVICE AND METHOD FOR CONTROLLING PARAMETERS OF AIR DEPOLLUTION MEANS OF AN ENCLOSURE|
    FR3086216A1|2018-09-26|2020-03-27|Valeo Systemes Thermiques|METHOD FOR DETERMINING AN AIR QUALITY PARAMETER FOR A MOTOR VEHICLE|
    FR3086214A1|2018-09-26|2020-03-27|Valeo Systemes Thermiques|METHOD FOR DETERMINING AN AIR QUALITY PARAMETER FOR A MOTOR VEHICLE|
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    法律状态:
    2015-10-23| PLFP| Fee payment|Year of fee payment: 2 |
    2016-05-27| PLSC| Publication of the preliminary search report|Effective date: 20160527 |
    2016-10-24| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-20| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-29| CA| Change of address|Effective date: 20180312 |
    2018-06-29| CD| Change of name or company name|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
    2018-10-24| PLFP| Fee payment|Year of fee payment: 5 |
    2019-10-22| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-21| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-20| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1461379A|FR3028954B1|2014-11-24|2014-11-24|AIR QUALITY CONTROL DEVICE SUPPLYING AN ENCLOSURE, BY CONTROL OF MEANS OF ACCESS INSTRUCTIONS BASED ON MEASUREMENTS OF CHEMICAL SPECIES CONCENTRATIONS|FR1461379A| FR3028954B1|2014-11-24|2014-11-24|AIR QUALITY CONTROL DEVICE SUPPLYING AN ENCLOSURE, BY CONTROL OF MEANS OF ACCESS INSTRUCTIONS BASED ON MEASUREMENTS OF CHEMICAL SPECIES CONCENTRATIONS|
    PCT/FR2015/053008| WO2016083697A1|2014-11-24|2015-11-06|Device for controlling the quality of the air supplying an enclosure, by controlling instructions of access means depending on measurements of concentrations of chemical species|
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