EP3877704A1 - Systeme de gestion thermique pour un habitacle de vehicule automobile - Google Patents
Systeme de gestion thermique pour un habitacle de vehicule automobileInfo
- Publication number
- EP3877704A1 EP3877704A1 EP19818225.5A EP19818225A EP3877704A1 EP 3877704 A1 EP3877704 A1 EP 3877704A1 EP 19818225 A EP19818225 A EP 19818225A EP 3877704 A1 EP3877704 A1 EP 3877704A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermal
- passenger
- term
- comfort
- tci
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B60H1/00742—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 detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat 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
- 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
- B60H1/0073—Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models
-
- 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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/30—Sensors
- B60Y2400/301—Sensors for position or displacement
- B60Y2400/3015—Optical cameras
Definitions
- the invention relates to a thermal management system for a motor vehicle.
- the invention also relates to a thermal management method implemented by such a thermal management system.
- thermo physiological model In general, to monitor and / or predict the thermal comfort of a passenger in the vehicle, it is necessary to estimate the metabolic activity of the person, namely via data representative (MET) of the metabolic activity , as input to a thermo physiological model.
- This model will make it possible to assess both the thermal sensations and the thermal comfort of the person.
- the thermal sensation is the expression of a global or local thermal feeling of the person, for example hot, neutral, cold. We speak of thermal neutrality if the thermal sensation experienced is “neither hot nor cold”.
- Thermal comfort is the expression of the person's satisfaction with this thermal feeling, for example pleasant or unpleasant, depending on the needs of the person in hot and cold, but also thermal history of the person.
- the invention aims to improve thermal management in a passenger compartment or a cockpit.
- the subject of the invention is therefore a thermal management system for a passenger compartment of a motor vehicle, a system comprising a processing unit arranged for:
- - preferably determine a representative data (MET) of the passenger's metabolic activity, in particular using an infrared sensor which targets the passenger, - determine two terms making up a value of a thermal comfort index (TCI) associated with this passenger in the passenger compartment, o one of the terms being a stationary term (TCIs) representative of the heat exchanges necessary for maintaining a state stabilized thermal comfort of the passenger, targeting thermal neutrality at global and local level, in particular obtained using a thermo-physiological model, using in particular representative data (MET) of the passenger's metabolic activity.
- TCI thermal comfort index
- TCId dynamic term
- thermal stimulus aimed at providing a temporary pleasant feeling of hot or cold, in particular to compensate for thermal stress as described above.
- TCI thermal comfort index
- the term stationary tends towards zero when a state of thermal neutrality for the passenger is reached, a state of comfort characterized by the absence of thermal sensation, namely neither hot nor cold, whether at global or local level, and associated in particular with maintaining comfort over long periods.
- the term stationary does not take into account the thermal history of the passenger, in particular the effect over time of a past thermal imbalance due to the thermal inertia of the organism.
- the dynamic term is representative of a state where the passenger has been or is subjected to a stress or transient thermal stimulus. In some cases it will be an uncomfortable and unpleasant perceived thermal stress, in other cases it will be a comfortable and pleasant perceived thermal stimulus.
- thermophysiological mechanisms out of balance.
- TCI comfort index
- the stress or thermal stimulus considered is associated with a situation chosen from among others:
- the present invention aims to provide a solution to better identify and manage these different situations over time, based on detectable and interpretable signs on the person.
- the system is arranged to estimate a comfort index value for all passengers of a vehicle from an infrared camera, in particular a plurality of infrared cameras.
- this camera is an infrared camera operating in the near infrared (Near Infra Red camera, in English) or operating in the far infrared (Far Infra Red).
- the evaluation of a person's metabolism is carried out by means of measurement of this person's vital signs.
- the thermal comfort index (TCI) is formulated so that the comfort is maximum when the value of the index (TCI) is equal to zero.
- the global comfort index TCI is defined from the two stationary terms TCIs and dynamic TCId, in particular by the weighted sum of the two terms using two coefficients A and B:
- TCI [A. TCIs + B. TCId]
- the comfort index can be expressed by the stationary term and the dynamic term, which dynamic term can be amplified to accelerate the convergence to the desired comfort in transient regime, that is to say in the preceding relation to have:
- the stationary term of the comfort index TCIs (t) at time t is obtained from a balance of thermal exchanges on the passenger (BEs), which expresses at time t the difference between the heat flow generated or absorbed by the body and the heat flow that the body can evacuate to the outside environment by keeping the body at its comfortable temperature.
- BEs thermal exchanges on the passenger
- a calibration coefficient (Cs) is used such that:
- TCIs (t) changes between a minimum value, for example “-4”, corresponding to a “very cold” state, and a maximum value, for example “+4”, corresponding to a “very hot” state.
- the dynamic term TCId (t) at the instant t of the comfort index is estimated from the measurement or the prediction of thermal imbalances STd (t), as a function of variations in heat or temperature flows over certain areas of the passenger's body.
- the STd (t) imbalance can correspond to an uncomfortable thermal stress or a comfortable thermal stimulus. Its taking into account in the calculation of the dynamic term TCId (t) involves a calibration coefficient (Cd) and an amortization term of the general form:
- the coefficient Cd will be negative or positive so that the dynamic term TCId (t) is negative when it contributes to a cold feeling, and positive when it contributes to a hot feeling .
- the coefficient Cd will be calibrated so that it contributes to degrading or improving the comfort index, depending on whether the imbalance generates uncomfortable and unpleasant local stress, or a comfortable local stimulus and agreeable.
- the damping term exp [- (t-to) / tc] will depend on the moment (to) of detection or generation of the imbalance, and on a characteristic time (te) presence or taking into account of the thermal imbalance.
- the thermal imbalance STd (t) will be equal to a difference between a measured or estimated heat flow F (t) and a reference heat flow Fo (t), of the form:
- the thermal imbalance STd (t) will be equal to a difference between a temperature T (t) or a difference in temperatures AT (t) compared to a reference To (t) or ATo (t ), of shape :
- the system is arranged so that the dynamic term intervenes in the management of comfort, via the comfort index and via the damping term, only over a predetermined period of time, for example the period being less than 20 minutes, being notably less than 10 minutes or 5 minutes.
- the total comfort index is obtained by the following relationship: Cdi. exp [- (you) / tci]. STdi (t)] with:
- TCI (t) is the total comfort index as a function of time t
- TCId (t) is the dynamic term of the total comfort index, associated with one or more transient thermal imbalances
- - STdi (t) represents the imbalance i between a thermal flux Fi (t), a temperature Ti (t) or a temperature difference ATi (t) compared to reference values Fio (t), Tio (t ), ATio (t)
- TCI thermal comfort index
- - tci is the characteristic time during which the dynamic term is taken into account: - tci will be high (15 min to 1 hour) if it relates to a step of slowly damping environmental conditions
- - A and B are two weighting coefficients intended to give a more or less significant weight to the dynamic term compared to the stationary term, according to the context of use or the preference of the passengers
- the thermal imbalance STd occurring in the dynamic term TCId is calculated from a measurement of thermal imbalance based on a temperature difference between remarkable points on the face [ATVis].
- thermal imbalance STd is calculated from the following formula:
- the thermal imbalance ATVis is calculated from the temperatures measured at remarkable points of the passenger, for example the edge of the nose, the sum of the left or right cheekbone and the center of the forehead .
- the formula used is:
- ATVis T nose - (T cheekbone + T center of forehead) / 2 or
- ATVis Tnez - (Tpommette_gauche + Tpommette_droite) / 2
- the measurement of the temperature of the remarkable point is carried out by means of the fusion of images in particular taken by cameras preferably infrared NI R and Fl R, which makes it possible to measure continuously while the passenger move.
- the invention also relates, independently or in combination with the above, to a thermal management process for a passenger compartment of a motor vehicle, the process comprising the following steps:
- MET representative data
- TCI thermal comfort index
- MET representative data
- TCId dynamic term
- thermal stimulus aimed at providing a temporary pleasant feeling of hot or cold, in particular to compensate for thermal stress as described above.
- thermal comfort index TCI
- the present invention aims in particular to use two families of sensors and two thermo-physiological models to dynamically manage the thermal comfort of passengers, by combining, depending on the context and the need, a logic for maintaining thermal comfort which ensures thermal neutrality or a logic of comfort, or reduction of discomfort, by applying pleasant thermal stimuli.
- a person's stationary TCIs thermal comfort index can be evaluated from an evaluation of their MET metabolism, clothing and thermal conditions in their environment.
- BMI body mass index
- FIG. 1 illustrates, schematically and partially, a thermal system according to the invention
- FIG. 2 illustrates steps of the method of managing thermal comfort in the system of FIG. 1,
- FIG. 3 represents the different areas of the passenger involved in the method of FIG. 2,
- FIG. 4 illustrates the temperature measurement on the face of a passenger.
- FIG. 1 shows a thermal management system 1 for a passenger compartment of a motor vehicle, system comprising a processing unit 2 arranged for:
- TCI thermal comfort index
- the system comprises several sensors arranged to measure several parameters used to determine the first, second, third and fourth data.
- These sensors include:
- an infrared dome 4 formed by a wide-angle infrared camera placed on a passenger compartment ceiling and which makes it possible to measure the temperatures of the passenger compartment walls and of certain parts of the body of the passengers
- the system 1 is arranged to measure a parameter used to determine the third datum representative of the passenger's thermal environment in the passenger compartment, this parameter being linked to the state of the air conditioning device, in particular the power of a blower of the device or the distribution of air conditioning from the air conditioning system.
- the first datum (Cio) representative of the level of clothing of the passenger in the passenger compartment corresponds to a measured thermal resistance of the clothing worn by the passenger.
- the system 1 is arranged to process an image taken by the camera 3 and to, from this image, determine the type of clothing (T-shirt and / or shirt and / or sweater and / coat and / or scarf and / or hat) worn by the passenger, in particular by image recognition, the system 1 being further arranged to determine the thermal resistance from the type of clothing thus measured.
- the type of clothing T-shirt and / or shirt and / or sweater and / coat and / or scarf and / or hat
- the second representative data (MET) of the metabolic activity of the passenger is dependent on the respiratory activity and the RH heart rate of the passenger which is measured in particular by the camera 3, as can be seen in FIG. 2.
- This camera 3 is arranged to observe changes in color of the passenger's face due to the movement of blood at the level of the skin of the face, and the system measures from these images the heart rate.
- the second representative datum (MET) of the metabolic activity of the passenger is dependent on a physical characteristic of the passenger which is measured by the camera 6 to determine, by image processing, the physical characteristics PC of the passenger, in particular gender, age, size and volume, and indirectly weight, as well as posture and movements.
- the second representative data (MET) of the metabolic activity of the passenger corresponds to a thermal pfd power PS to be evacuated to the outside by the passenger deduced using the PC data.
- System 1 can also take into account the solar flux absorbed directly by the skin, which then adds to the surface power PS to be evacuated.
- the system 1 is arranged for, from the temperatures of the walls and / or window measured by the infrared dome 4, calculate the radiative temperature for several parts of the passenger's body such as the head Z1, the bust Z2, the back Z3, the legs Z4, feet Z5, arms Z6 and hands Z7, as can be seen in Figure 3.
- the system 1 is arranged to estimate the air temperature in contact with the passenger for a part of the passenger's body, in particular several parts of the passenger's body, in particular the head, bust, back, legs, calves, feet, arms, in particular at from the power of an air blower and / or the distribution of HVAC and / or the supply air temperature and the temperature of the passenger compartment and in particular on the basis of charts.
- System 1 is designed to, from the distribution of HVAC and / or the power of the air blower, estimate, in particular from abacuses, the air speed in contact with a part or more passenger body parts.
- the system 1 is arranged to estimate the total thermal power which can be exchanged (P_tot_theoritical) by the passenger with his environment with a skin temperature corresponding to the comfort audit, by estimating the thermal power exchanged part by part of the body, in particular the head, the bust, back, legs, calves, feet, arms.
- This total thermal power exchanged (P_tot_theoritical) is a function of the Cio and PC data.
- the powers exchanged are a function of the local air speed, the local air temperature, the local radiant temperature, the surface of the passengers, and the level of clothing of the passenger (Cio).
- the powers exchanged include an additional term associated with the heat evacuated by respiration, evaporation and sweating depending, among other things, on the second representative datum (MET) of the passenger's metabolic activity
- System 1 is designed to compare the total thermal power which can be exchanged with the environment at skin temperature for comfort (P_tot_theoritical) with the power generated by the metabolism of the passengers, added if necessary to the absorbed solar flux, and by multiplying this difference in power by a coefficient, determine a value of the thermal comfort index (TCI).
- this model can then be used to estimate the instant comfort of passengers. It is also possible to define instructions for thermal actuators in order to achieve passenger comfort. There is thus a personalized regulation of the thermal system.
- the method is arranged to take into account heat exchanges by respiration, sweating and perspiration, as a function of the ambient temperature and humidity and of the metabolism to estimate a comfort index.
- Metabolic activity is determined based on the day and / or time, gender, age, other personal characteristics of the passenger, and data or knowledge of current or previous activities.
- a thermal management system for a passenger compartment of a motor vehicle the processing unit 2 of which is arranged for: - determine representative data (MET) of the passenger's metabolic activity, in particular using an infrared sensor which targets the passenger,
- MET representative data
- TCI thermal comfort index
- MET representative data
- TCId dynamic term
- thermal stimulus aimed at providing a temporary pleasant feeling of hot or cold, in particular to compensate for thermal stress as described above.
- TCI thermal comfort index
- TCIs is representative of a state of thermal neutrality for the passenger, a state of comfort characterized by the absence of thermal sensation, namely neither hot nor cold, either globally or local, and associated in particular with maintaining comfort over long periods.
- TCId is representative of a state in which the passenger is subjected to transient thermal stimuli, namely a local imbalance in heat exchanges revealing a thermal stress undergone or aimed at providing a temporary sensation of hot or cold to compensate for previous thermal stress or discomfort or in other areas.
- Positive stimuli are associated with a situation chosen from:
- the present invention aims to provide a solution to better identify and manage these different situations over time, based on detectable and interpretable signs on the person.
- the system is arranged to estimate a comfort index value for all passengers of a vehicle from an infrared camera, in particular a plurality of infrared cameras. These cameras are described in connection with the previous embodiment.
- TCIs comfort index is obtained using an energy balance model, derived in part from the Fanger model. The closer this term is to zero, the closer the person is to thermal neutrality
- TCId of the comfort index is estimated from thermal imbalances applied or suffered by the passenger. This term can take a value greater than or less than zero, depending on the direction (heating or cooling) and the intensity of the thermal stimulus undergone or applied.
- the system is arranged so that the dynamic term intervenes in the management of comfort, via the comfort index, only over a predetermined period of time, for example the period being less than 20 minutes, being notably less than 10 minutes or 5 minutes.
- the overall comfort index is obtained by the following relation:
- TCI (t) TCIs + Alpha (1 -exp (-t / E)) * TCId
- TCI (t) is the overall comfort index as a function of time t
- TCIs is the stationary term of comfort index
- TCId is the dynamic term for comfort index
- TCId is calculated from a measurement of thermal imbalance DT.
- TCId The dynamic term TCId is calculated from the following formula:
- TCId A DT + B with A between 0.4 and 0.6
- the thermal imbalance DT is calculated from the temperatures measured at remarkable points of the passenger, for example the edge of the nose 501, the sum of the left cheek 502 or right 503 and the center of the forehead 504 and 505, as illustrated in figure 4.
- the measurement of the temperature of the remarkable point is carried out by means of the fusion of images in particular taken by cameras preferably infrared NI R and Fl R, which makes it possible to measure continuously while the passenger move.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1860337A FR3088261B1 (fr) | 2018-11-09 | 2018-11-09 | Systeme de gestion thermique pour un habitacle de vehicule automobile |
PCT/FR2019/052655 WO2020094998A1 (fr) | 2018-11-09 | 2019-11-07 | Systeme de gestion thermique pour un habitacle de vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3877704A1 true EP3877704A1 (fr) | 2021-09-15 |
Family
ID=66690420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19818225.5A Pending EP3877704A1 (fr) | 2018-11-09 | 2019-11-07 | Systeme de gestion thermique pour un habitacle de vehicule automobile |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220009308A1 (fr) |
EP (1) | EP3877704A1 (fr) |
KR (1) | KR102703954B1 (fr) |
FR (1) | FR3088261B1 (fr) |
WO (1) | WO2020094998A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190104271A (ko) * | 2019-08-19 | 2019-09-09 | 엘지전자 주식회사 | 하차 지점 안내 방법 및 그 안내를 위한 차량용 전자 장치 |
FR3114799A1 (fr) * | 2020-10-01 | 2022-04-08 | Safran Seats | Procédé de gestion de la température fournie par un dispositif de réglage de température à au moins un passager d’une cabine d’aéronef |
FR3116472A1 (fr) * | 2020-11-24 | 2022-05-27 | Valeo Systemes Thermiques | Procédé de gestion thermique et système de gestion thermique correspondant |
US11766919B2 (en) * | 2021-01-28 | 2023-09-26 | Caterpillar Inc. | System and method of climate control in unmanned machine |
WO2024030413A1 (fr) * | 2022-08-03 | 2024-02-08 | Gentherm Incorporated | Vêtement d'occupant et prédicteur anthropométrique pour commande d'effecteur thermique |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7027621B1 (en) * | 2001-03-15 | 2006-04-11 | Mikos, Ltd. | Method and apparatus for operator condition monitoring and assessment |
DE102011077522A1 (de) * | 2011-06-15 | 2012-12-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur Erfassung der thermischen Behaglichkeit |
DE112013005660T5 (de) * | 2012-11-27 | 2015-08-20 | Faurecia Automotive Seating, Llc | Fahrzeugsitz mit integrierten Sensoren |
WO2014128273A1 (fr) * | 2013-02-21 | 2014-08-28 | Iee International Electronics & Engineering S.A. | Système de surveillance d'occupant basé sur un dispositif d'imagerie prenant en charge de multiples fonctions |
IL232027B (en) * | 2013-04-19 | 2021-02-28 | Gauzy Ltd | Means and methods for stacking at least one first projected image on top of at least one real second image |
FR3039461B1 (fr) * | 2015-07-30 | 2018-12-07 | Valeo Systemes Thermiques | Systeme de commande pour installation de conditionnement d'air d'un vehicule automobile |
WO2017173222A1 (fr) * | 2016-04-01 | 2017-10-05 | Gentherm Inc. | Détection d'état thermique d'occupant et système et procédé de réglage de confort |
JP6811601B2 (ja) * | 2016-06-24 | 2021-01-13 | パナソニック株式会社 | 温冷感推定方法、温冷感推定装置、空気調和機及びプログラム |
US10144275B2 (en) * | 2016-09-02 | 2018-12-04 | International Business Machines Corporation | Environmental control in vehicles |
US10583709B2 (en) * | 2016-11-11 | 2020-03-10 | International Business Machines Corporation | Facilitating personalized vehicle occupant comfort |
DE102017205255A1 (de) * | 2017-03-28 | 2018-10-04 | Bayerische Motoren Werke Aktiengesellschaft | Meldesystem in einem Fahrzeug zur Meldung eines Vorfalls des Fahrzeugs und Verfahren zur Meldung eines Vorfalls eines Fahrzeugs |
FR3065915B1 (fr) * | 2017-05-03 | 2020-07-24 | Valeo Systemes Thermiques | Systeme de gestion thermique pour un habitacle de vehicule automobile |
EP3748249B1 (fr) * | 2018-01-31 | 2022-09-07 | Mitsubishi Electric Corporation | Système de commande de climatisation et climatiseur associé |
US20210068673A1 (en) * | 2018-02-12 | 2021-03-11 | University Of Maryland, College Park | Occupant monitoring method and system for building energy management |
US11631259B2 (en) * | 2018-11-02 | 2023-04-18 | The Regents Of The University Of Michigan | Multimodal sensing of thermal comfort for adaptable climate control |
-
2018
- 2018-11-09 FR FR1860337A patent/FR3088261B1/fr active Active
-
2019
- 2019-11-07 US US17/291,925 patent/US20220009308A1/en not_active Abandoned
- 2019-11-07 KR KR1020217017605A patent/KR102703954B1/ko active IP Right Grant
- 2019-11-07 EP EP19818225.5A patent/EP3877704A1/fr active Pending
- 2019-11-07 WO PCT/FR2019/052655 patent/WO2020094998A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
KR102703954B1 (ko) | 2024-09-05 |
WO2020094998A1 (fr) | 2020-05-14 |
FR3088261B1 (fr) | 2021-01-22 |
US20220009308A1 (en) | 2022-01-13 |
FR3088261A1 (fr) | 2020-05-15 |
KR20210077777A (ko) | 2021-06-25 |
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