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
  • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
  • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
  • B60H1/00835—Damper doors, e.g. position control
  • B60H1/00849—Damper doors, e.g. position control for selectively commanding the induction of outside or inside air
• • 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
  • B60H1/00764—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 a vehicle driving condition, e.g. speed
  • B60H1/00771—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 a vehicle driving condition, e.g. speed the input being a vehicle position or surrounding, e.g. GPS-based position or tunnel
• • 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

Definitions

• TITLE Air quality management system in a vehicle cabin on a predetermined route
• the present invention relates to motor vehicles and more particularly to systems for managing the quality of the air in a vehicle cabin.
• the sources of pollutants are multiple and can be of anthropogenic or natural origin.
• the concentration of pollutants in the interior of a vehicle can be 3 to 5 times greater than outside.
• the interior pollution of vehicles can also include volatile organic components released in particular by glues, paints, plastics and mold.
• vehicles are often fitted with a ventilation system that can be configured for recirculation mode. Passengers in a vehicle are not only exposed to air pollution coming from outside the vehicle, but also possibly to pollutants from emissions from passenger compartment materials and to CO2, the concentration of which is can increase rapidly within the passenger compartment, depending on ventilation and heating conditions.
• the number of passengers in the cabin is also a factor to be taken into account and may contribute to the increase in the level of C02.
• the humidity level also tends to increase and thus fog the windows of the passenger compartment, which makes driving dangerous.
• the air intake flaps must be opened even if the exterior pollution is greater or is likely to be on the route to be traveled. This leads to premature clogging of the particulate filters and to overconsumption of the air conditioning system, which must compensate for the temperature difference between the fresh air drawn in and the air in the passenger compartment.
• the invention proposes to alleviate the aforementioned constraints by proposing a new device for managing the quality of the air in the passenger compartment of the vehicle according to a predetermined route.
• the subject of the invention is therefore, according to a first aspect, a method for managing the quality of the air in a vehicle interior over a predetermined route, comprising an acquisition of data relating to the pollution of the air around and to inside the vehicle on said route, and determining the level of air pollution around and inside the vehicle from said data.
• the method comprises implementing the recycling of the air present in the passenger compartment as a function of the change in the level of pollution of the air present around and inside the vehicle.
• predetermined path is meant a path that the vehicle is required to travel. Obviously, the trip can be updated during it.
• the predetermination of the route makes it possible to define the pollution levels of the environment in which the vehicle will be traveling, and to be able to anticipate the management of the quality of the air in the passenger compartment.
• the data relating to the journey makes it possible to acquire the data relating to the pollution at the present moment and at the level of the various points of passage in order to take a decision on the implementation or the stop of the air recycling. present in the passenger compartment.
• the implementation of the recycling comprises an activation of a first filtering of the outside air able to enter the passenger compartment and of a second filtering of the air present in the passenger compartment.
• the air entering the passenger compartment passes through a first filtering, provided by a first air filter placed in the air conditioning system, but also by a second high performance air filter arranged at the air inlet.
• the latter is therefore placed upstream of the vehicle's air conditioning system.
• This air filter can for example only be activated if fine particles are detected outside the vehicle.
• the second filtering is carried out via a conventional air filter.
• the first filtering comprises a treatment of particulate pollutants, gaseous and fine particles contained in the outside air.
• the second high performance air filter when the second high performance air filter is subjected to the presence of fine particles, it is advantageous to protect it by a third air filter, placed upstream of the highly efficient filter, in order to extend its service life. life.
• the second filtering is also carried out by means of an air filter and further comprises a treatment of the gaseous pollutants of the passenger compartment capable of being activated if the concentration of the gaseous pollutants of the air present in the passenger compartment is. greater than a predetermined threshold.
• the air filter which can be optional, consists in particular of activated carbon, MOF (for "Metal-Organic framework” in English) and / or other absorbents and is preferably activated only in the event of use. Recycling and if there is a detection of a high level of gaseous pollutant concentration dangerous for the health of passengers, corresponding for example to an air quality index between 151 and 200, as defined by European Environment Agency.
• MOF Metal-Organic framework
• the predetermined threshold is not limited to this index but can come from other organizations or developed in-house by the car manufacturer.
• the acquisition of data relating to the pollution around the vehicle comprises at least one measurement of a physical quantity by at least one external measurement sensor arranged on the vehicle.
• Said at least one sensor can be installed at the air inlet or outside on any part of the vehicle allowing said at least one sensor to be properly maintained in position and obtaining precise and non-random values.
• the acquisition of data relating to the pollution present in the passenger compartment comprises at least one measurement of a physical quantity by at least one internal measurement sensor placed in the passenger compartment.
• the latter comprises at least one sensor capable of measuring the level of gaseous pollutants therein. Mention may be made, for example, of a sensor resulting from optical or electrochemical technology. Those skilled in the art will know how to choose the physical quantity to be measured as well as the internal sensor suitable for the vehicle.
• the determination of the level of pollution external to the vehicle on the predetermined route comprises a development in real time of a predictive map from the data acquired.
• Predictive mapping provides a complete view of the level of outdoor air pollution on said journey. It can be constructed by the acquisition of geolocated pollution data at different points of the path to be traveled. Preferably, the determination of the level of pollution of the outside air on the predetermined path comprises an implementation of at least one machine of machine learning.
• Machine learning (commonly called "deep learning” in English) makes it possible to determine the level of pollution of the outside air on the given route by receiving data from, for example, sensors placed on the vehicle, data relating to the vehicle. weather, road traffic ... etc. It can be supervised or unsupervised
• the vehicle comprises a mobile recycling control shutter
• the implementation of recycling comprises positioning said mobile shutter from a first position corresponding to total closure of the mobile shutter to a second position corresponding to full or partial opening. of said movable shutter.
• the shutters can be fully closed or open but also partially closed, which corresponds to the implementation of partial recycling.
• the implementation of the recycling comprises drying the passenger compartment, by cryogenic distillation or preferably by adsorption.
• a system for managing the quality of the air in a vehicle cabin over a predetermined path comprising acquisition means capable of acquiring data relating to the pollution around and inside. of the vehicle on said path, calculation means capable of determining the level of air pollution around and inside the vehicle from said data.
• the system comprises control means capable of implementing a recycling of the air (partial or total recycling) present in the passenger compartment as a function of the evolution of the level of pollution of the air present around and inside. of the vehicle.
• control means are capable of activating a first filter capable of filtering the outside air entering the passenger compartment, and of activating a second filter capable of filtering the air present in the passenger compartment, during the implementation. recycling of the air present in the vehicle interior.
• the first filter is a filter of particulate pollutants, gaseous, and fine particles contained in the outside air.
• the second filter is an air filter coupled to a third filter capable of treating the gaseous pollutants present in the passenger compartment, the control means being capable of activating the third filter if the level of pollution of the air present in the passenger compartment. the passenger compartment is greater than a predetermined threshold.
• the system comprises at least one external measurement sensor arranged on the vehicle, the acquisition means being able to acquire data relating to the pollution around the vehicle by performing at least one measurement of a physical quantity resulting from said. at least one external measurement sensor.
• the system comprises at least one internal measurement sensor arranged in the passenger compartment, the acquisition means being able to acquire data relating to the pollution present in the passenger compartment by performing at least one measurement of a magnitude. physical output from said at least one internal measurement sensor of the vehicle.
• the calculation means are able to determine the level of pollution on the predetermined path by developing in real time a predictive map from the acquired data.
• the system comprises at least one automatic learning machine, the calculation means being able to implement said at least one machine to determine the level of pollution of the outside air on the predetermined path.
• the vehicle comprises a movable recycling control flap, the control means being able, during the implementation of the recycling, to position the movable flap from a first position corresponding to a total closure of the movable flap at a second position corresponding to a total or partial opening of said shutter.
• the vehicle comprises dehumidification means capable of drying the passenger compartment, the control means being capable of activating said dehumidification means during the implementation of recycling.
• a further subject of the invention is a vehicle comprising a system for managing the quality of the air in a passenger compartment over a predetermined route as defined above.
• FIG. 1 illustrates schematically a system for managing the quality of the air in the passenger compartment of a vehicle according to one embodiment of the invention.
• FIG. 1 illustrates a recycling phase on a given route.
• a motor vehicle 1 comprising an air quality management system 2 in the passenger compartment of said vehicle 1.
• the management system 2 is capable of implementing or stopping the air recycling system of the air conditioning system of the vehicle 1 of conventional and known structure.
• the air quality management system 2 is coupled to said recycling system and more particularly to an air inlet capable of controlling the outside air entering the vehicle 1.
• control of the outside air is effected by means of a movable recycling control flap 7, able to move from a first position corresponding to a total closure of the movable flap 7 to a second position corresponding to total or partial opening of the shutter 7.
• Partial opening corresponds to an intermediate position located between the first position and the second position.
• said flap 7 can regulate the flow of outside air entering the vehicle 1.
• the outside air intended to enter the cabin of the vehicle 1 may be loaded with pollutants which are filtered by means of a first filtering system 8 combined in the air conditioning system.
• the first filtering system 8 here comprises a first filter 81 capable of filtering particulate and gaseous pollutants but also a second high performance air filter 82, arranged at the air inlet and upstream of the air conditioning system and capable of filtering particles. the finest contained in the outside air.
• the second filtering system 9 comprises an air filter 91 coupled to an optional filter 92 and able to treat only the gaseous pollutants present in the passenger compartment.
• the latter consists in particular of activated carbon, MOF and / or other absorbents.
• the filtering system 9 is only activated when the level of concentration of gaseous pollutants is greater than a threshold value that those skilled in the art will be able to choose.
• the filter 91 is a particulate filter which aims to protect the filter 92.
• dehumidification means 10 are coupled to said. management system 2 and able to be activated during said implementation.
• the management system 2 cooperates with the dehumidification means 10, the first and the second filtering system 8 and 9.
• the management system 2 comprises acquisition means 3 capable of acquiring data relating to the pollution around and inside the vehicle over the predetermined route.
• Said data can come from a first series Cx of external sensors Cxl, ..., Cx4 capable of measuring physical quantities which can subsequently make it possible to determine the level of pollution around the vehicle 1. They are installed at the inlet of the vehicle. air or outside the vehicle 1 on any part that can ensure good retention of the sensors in position.
• the acquisition means 3 can also acquire data from a second series CI of internal sensors Cil, CI2 for example, capable of measuring physical quantities which can subsequently make it possible to determine the level of pollution in the passenger compartment of the vehicle. 1.
• the acquisition means 3 can retrieve by a satellite 12, for example, data sent relating to the weather, the traffic and the level of pollution at various points along the route. example.
• the acquired data are then sent to calculation means 4 capable of determining the level of air pollution inside the vehicle but also around it on the predetermined route.
• the acquired data are stored in a memory 5 and made available to the calculation means 4.
• the calculation means 4 include at least one machine learning machine 11.
• the calculation means 4 develop a predictive map of the air pollution on said path and send it to control means 6 capable of implementing the recycling of the air present in the passenger compartment as a function of. the evolution of the level of pollution of the air present around and inside the vehicle on said route.
• control means 6 send a control signal to the movable shutter 7 before the vehicle 1 is running on this portion in order to ensure, before the implementation of the recycling, a good level of oxygen, water and carbon dioxide.
• control means 6 open the movable shutter 7 in said moderately polluted zone, activate the first filtering system 8, the second filtering system 9, and the dehumidification means 10.
• control means 6 can also choose to implement a partial recycling and thus put the inlet flaps 7 in. an intermediate position.
• the control of the movable shutter 7, of the various filtering systems 8, 9, and of the dehumidification means 10 by the management system 2 it is possible to ensure good quality of the air present in the passenger compartment and thermal comfort without significantly increasing vehicle consumption 1.
• the invention is not limited to these embodiments and implementations but encompasses all the variants thereof.
• the management system 2 could control any module of the vehicle 1 that can influence the quality of the air present in the passenger compartment.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• Radar, Positioning & Navigation (AREA)
• Remote Sensing (AREA)
• Air-Conditioning For Vehicles (AREA)
• Processing Of Solid Wastes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69375559

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (5)

• 2019
  • 2019-10-29 FR FR1912121A patent/FR3102405B1/fr active Active
• 2020
  • 2020-10-21 WO PCT/EP2020/079599 patent/WO2021083759A1/fr unknown
  • 2020-10-21 CN CN202080077887.8A patent/CN114650921A/zh active Pending
  • 2020-10-21 BR BR112022007969A patent/BR112022007969A2/pt not_active Application Discontinuation
  • 2020-10-21 EP EP20792438.2A patent/EP4051519A1/de not_active Withdrawn

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