EP4408686A1 - Véhicule à désembuage automatisé de vitres latérales - Google Patents
Véhicule à désembuage automatisé de vitres latéralesInfo
- Publication number
- EP4408686A1 EP4408686A1 EP22782910.8A EP22782910A EP4408686A1 EP 4408686 A1 EP4408686 A1 EP 4408686A1 EP 22782910 A EP22782910 A EP 22782910A EP 4408686 A1 EP4408686 A1 EP 4408686A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- level
- fan
- vehicle according
- vehicle
- 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.)
- Withdrawn
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 devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
-
- 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 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
-
- 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 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 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
- B60H1/00828—Ventilators, e.g. speed control
-
- 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 devices
- B60H1/24—Ventilating devices where the heating or cooling is irrelevant
- B60H1/241—Ventilating devices where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
- B60H1/243—Ventilating devices where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle located in the lateral area (e.g. doors, pillars)
Definitions
- TITLE VEHICLE WITH AUTOMATED SIDE WINDOW DEFOGGER
- the invention relates to vehicles which include a passenger compartment partially delimited by side windows, and more specifically the control of the demisting of such side windows.
- Certain vehicles possibly of the automobile type, comprise a passenger compartment partially delimited by side windows and a heating and/or air conditioning installation responsible for supplying this passenger compartment with treated air.
- the heating and/or air conditioning installation includes ducts which are connected to diffusers associated with side windows. This makes it possible to deliver treated air to these side windows to combat the formation of fog.
- the further the side windows are from the place where the treated air is produced the more inefficient the control. This is mainly due to the fact that more the side windows are further from the place where the treated air is produced, the greater the pressure drops in the ducts of the heating and/or air conditioning installation, and therefore the higher the speed of the treated air which reaches the level of the side window diffusers is reduced, which makes this treated air all the less effective in the fight against fogging.
- the aim of the invention is therefore in particular to improve the situation.
- a vehicle comprising a heating and/or air conditioning installation supplying treated air to ducts connected to diffusers associated with side windows.
- each duct or diffuser (associated with a duct) comprises a fan able to increase the speed of the treated air so that the latter circulates with an increased speed on the associated side window to fight against a fogging.
- the vehicle according to the invention may include other characteristics which may be taken separately or in combination, and in particular:
- the heating and/or air conditioning installation may comprise, on the one hand, a clean air inlet flap, depending on its position, to supply it with outside air and/or recirculated air from a passenger compartment of the vehicle partially delimited by the side windows, and, on the other hand, a computer capable of triggering operation of each fan according to the position of the air inlet flap;
- the computer may be capable of triggering at least partial operation of each fan when the air inlet flap is in a position ensuring at least a partial supply of recirculated air;
- the computer in the presence of the first option or the last sub-option, it can include a mist sensor capable of delivering information which is representative of a risk of fogging on the side windows.
- the computer may be capable of triggering the operation of each fan depending also on the level of risk;
- the computer can be capable of triggering operation at a maximum level of each fan when the air inlet flap is in a position providing at least a partial supply of recirculated air and that the level of risk is greater than or equal to a first chosen threshold, or operation of an intermediate level, strictly lower than the maximum level, of each fan when the air inlet flap is in a position ensuring supply at least partly with recirculated air and that the level of risk is lower than the first threshold chosen;
- the computer can be capable of triggering operation at an intermediate level, strictly lower than a maximum level, of each fan when the air inlet flap is in a position ensuring an outside air supply and that the level of risk is greater than or equal to the first threshold chosen;
- the intermediate level can be between 40% and 60%;
- At least one duct or diffuser may include a heating device capable of heating the treated air before it reaches the associated side window;
- the computer may be capable of triggering operation of each heating device when a temperature outside the vehicle is below a second chosen threshold
- FIG. 1 illustrates schematically and functionally, in a side view section in a longitudinal and vertical plane, an embodiment of a vehicle according to the invention
- FIG. 2 schematically and functionally illustrates an embodiment of a computer for a vehicle heating and/or air conditioning installation according to the invention.
- the object of the invention is in particular to propose a vehicle V comprising a passenger compartment H closed and partially delimited by side windows VL which for some at least are subject to demisting control.
- the vehicle V is of the automobile type. This is for example a car, as illustrated in Figure 1. But the invention is not limited to this type of vehicle. It relates in fact to any vehicle (land, sea (or river), or air) comprising a closed passenger compartment and partially delimited by side windows.
- FIG. 1 A part of an example of a vehicle V comprising a closed passenger compartment H and a heating and/or air conditioning installation IC intended to supply treated air for this passenger compartment H is schematically illustrated in FIG.
- the passenger compartment H is partially delimited by side windows VL which, for some at least, are subject to demisting control.
- side windows VL which, for some at least, are subject to demisting control.
- the side windows form part of the rear PL side doors (or doors). But in an alternative embodiment they could form part of the rear side panels (or "quarter panels"). In another alternative embodiment, the side windows could form part of the front side doors (or doors).
- the (heating and/or air conditioning) installation IC notably comprises ducts CA connected to diffusers DA which are associated with side windows VL (here rear) to supply them with treated air (arrow F4), on the interior side .
- each duct CA can be connected to a single diffuser DA associated with a side window VL.
- the same CA duct could be connected to at least two DA diffusers associated with a single VL side window or multiple VL side windows.
- the installation (for heating and/or air conditioning) IC also includes an air inlet flap VEA which is suitable, depending on its position, for supplying it in outside air and/or in recirculated air from the passenger compartment H.
- the outside air is supplied by a first supply duct C1 communicating with the exterior of the vehicle V (arrow F1), and the recirculated air is supplied by a second supply duct C2 communicating with the passenger compartment H (arrow F2).
- each duct CA or each diffuser DA (connected to a duct CA) comprises a fan W which is capable of increasing the speed of the treated air so that the latter circulates with an increased speed on the side window VL associated to fight against fogging.
- the fan W is part of the diffuser DA.
- the fan W could be part of the duct CA, preferably as close as possible to the diffuser DA to which this duct CA is connected so as to limit pressure drops as much as possible.
- the installation IC can comprise, in addition to its air inlet flap VEA, a calculator Cl which is capable of triggering operation of each fan W according to the position of the VEA air inlet flap.
- a calculator Cl which is capable of triggering operation of each fan W according to the position of the VEA air inlet flap.
- the computer C1 may be capable of triggering a at least partial operation of each fan W when the air inlet flap VEA is in a position which provides at least a partial supply of recirculated air.
- the air supplying the installation IC is at least partially recirculated (F1 and F2, or F2)
- the fans W are automatically put into operation at least partially. This results from the fact that in the case of a supply at least partly of recirculated air, each air extractor of the vehicle V is closed (or almost closed) because the pressure in the passenger compartment H decreases or becomes zero, and therefore the the speed of the treated air reaching the level of the fans W is notably reduced (partial recirculation), or even greatly reduced (total recirculation).
- the vehicle V can also include a mist sensor CB (for example in its passenger compartment H) capable of delivering information which is representative of a risk of mist formation on the passenger car side windows.
- the computer Cl may be capable of triggering the operation of each fan W depending not only on the type of air supplying the installation IC, but also on the level of risk of fogging. This option enables more sophisticated demisting control that consumes less electrical energy since the operation of the W fans can then no longer be of the "all or nothing" type.
- the calculator Cl can be able to trigger operation of a maximum level or of an intermediate level, strictly lower than the maximum level, of each fan W.
- the fans W can offer at least two different levels of operation, one maximum offering a maximum speed increase, the other intermediate offering an intermediate speed increase.
- Operation according to the maximum level is triggered when the VEA air inlet flap is in a position which ensures a supply at least partly of recirculated air and the level of risk is greater than or equal to at a first chosen threshold s1.
- Operation according to the intermediate level is triggered when the VEA air inlet flap is in a position providing at least a partial supply of recirculated air and the risk level is lower than the first threshold s1 chosen.
- the computer Cl can be capable of triggering operation of the intermediate level of each fan W when the air inlet flap VEA is in a position ensuring a supply of outside air and the level of risk is higher or higher. equal to the first chosen threshold. Consequently, when the air inlet flap VEA is in a position ensuring a supply of outside air and the level of risk is lower than the first threshold s1 chosen, the fans W are not operated, because it is considered that this is not necessary. In addition, only operation according to the intermediate level is imposed because the speed of the treated outside air reaching the level of the fans W is less reduced than when it is a question of at least partially recirculated air, because that each air extractor of the vehicle V is then partially open.
- first and second risk levels can be used.
- the first level of risk is strictly lower than the second level of risk which then constitutes the first threshold s1.
- the risk level could be a calculated or estimated number whose value varies between two minimum and maximum values.
- the first threshold s1 can also be a number.
- the intermediate level of operation of the fans W can be between 40% and 60%.
- the intermediate level of operation of the fans W can be equal to 50%.
- At least one conduit CA or one diffuser DA may comprise a heating device DC which is suitable for heating the treated air before it does not reach the associated passenger car side window.
- a heating device DC which is suitable for heating the treated air before it does not reach the associated passenger car side window.
- each DC heating device can take the form of at least one heating resistor (possibly of the PTC ("Positive Temperature Coefficient") type).
- the heating device DC forms part of the diffuser DA.
- the heating device DC could form part of the conduit CA, preferably as close as possible to the diffuser DA to which this conduit CA is connected so as to limit heat losses as much as possible.
- a fan W in a CA duct and a DC heater in the diffuser DA connected to this CA duct or a DC heater in a CA duct and a fan W in the diffuser DA connected to this conduit CA.
- a fan W can be placed upstream or downstream of an associated DC heating device, with respect to the direction of circulation of the treated air (arrow F4).
- the computer Cl can be able to trigger operation of each heating device DC when the temperature outside the vehicle V is below a second chosen threshold s2.
- This second threshold s2 can optionally be chosen according to the humidity level in the passenger compartment H since the dew point depends on this level.
- this second threshold s2 can be between 3°C and 7°C when the humidity level is around 40%.
- the computer Cl can possibly be the installation supervision computer IC. But this is not compulsory, because it can also be a computer dedicated to controlling the demisting of at least the LV side windows.
- the computer Cl comprises at least one processor PR1 and at least one memory MD which are arranged to perform operations allowing control of the demisting of at least the side windows VL. It is made in the form of a combination of electrical or electronic circuits or components (or “hardware”) and software modules (or “software”).
- the processor PR1 can, for example, be a signal processor (or DSP (“Digital Signal Processor”)).
- This processor PR1 can comprise integrated (or printed) circuits, or else several integrated (or printed) circuits connected by wired or wireless connections.
- integrated (or printed) circuit is meant any type of device capable of performing at least one electrical or electronic operation. Thus, it may, for example, be a microcontroller.
- the memory MD is active in order to store instructions for the implementation by the processor PR1 of the demisting control functionalities described above.
- This calculator Cl can also include, in addition to the random access memory MD and processor PR1, a mass memory MM, in particular for storing the level of risk, the current position of the air inlet flap, any outside temperature, any temperature inside the passenger compartment H, and intermediate data involved in all its calculations and processing. Furthermore, this calculator Cl can also comprise an input interface IE for receiving at least the level of risk, the current position of the air inlet flap, the possible outside temperature and the possible temperature interior to use them in calculations or processing, possibly after having them shaped and/or demodulated and/or amplified, in a manner known per se, by means of a digital signal processor PR2. In addition, this calculator C1 may also include an output interface IS, in particular for delivering any messages or operating orders for the fans W and any heating devices DC.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
- Duct Arrangements (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2110350A FR3127445B1 (fr) | 2021-09-30 | 2021-09-30 | Véhicule à désembuage automatisé de vitres latérales |
| PCT/FR2022/051661 WO2023052701A1 (fr) | 2021-09-30 | 2022-09-02 | Véhicule à désembuage automatisé de vitres latérales |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4408686A1 true EP4408686A1 (fr) | 2024-08-07 |
Family
ID=78820281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22782910.8A Withdrawn EP4408686A1 (fr) | 2021-09-30 | 2022-09-02 | Véhicule à désembuage automatisé de vitres latérales |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4408686A1 (fr) |
| FR (1) | FR3127445B1 (fr) |
| WO (1) | WO2023052701A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1314870A (en) | 1970-10-10 | 1973-04-26 | Arkady New Foods Ltd | Production of dairy products |
| SE454258B (sv) * | 1986-10-01 | 1988-04-18 | Saab Scania Ab | Anordning for att forhindra im- och isbildning vid ett motorfordons sidofonsterruta |
| US7461551B2 (en) * | 2005-03-17 | 2008-12-09 | Denso Corporation | Window fog detecting apparatus |
| FR3062084B1 (fr) * | 2017-01-23 | 2021-10-22 | Valeo Systemes Dessuyage | Dispositif et procede de degivrage et desembuage de vitre de vehicule automobile |
| US20200156441A1 (en) * | 2018-11-16 | 2020-05-21 | Ford Global Technologies, Llc | Vehicle defogging and demisting system |
-
2021
- 2021-09-30 FR FR2110350A patent/FR3127445B1/fr active Active
-
2022
- 2022-09-02 WO PCT/FR2022/051661 patent/WO2023052701A1/fr not_active Ceased
- 2022-09-02 EP EP22782910.8A patent/EP4408686A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3127445A1 (fr) | 2023-03-31 |
| FR3127445B1 (fr) | 2024-10-04 |
| WO2023052701A1 (fr) | 2023-04-06 |
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