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WO2024023417A1 - Motor vehicle comprising a system for rendering images of the combustion engine to the user of said vehicle - Google Patents

Motor vehicle comprising a system for rendering images of the combustion engine to the user of said vehicle Download PDF

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Publication number
WO2024023417A1
WO2024023417A1 PCT/FR2023/050963 FR2023050963W WO2024023417A1 WO 2024023417 A1 WO2024023417 A1 WO 2024023417A1 FR 2023050963 W FR2023050963 W FR 2023050963W WO 2024023417 A1 WO2024023417 A1 WO 2024023417A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
engine
thermal
associated circuits
image
Prior art date
Application number
PCT/FR2023/050963
Other languages
French (fr)
Inventor
Youssef TIFRADNI
Houssam SABIL
Original Assignee
Stellantis Auto Sas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stellantis Auto Sas filed Critical Stellantis Auto Sas
Publication of WO2024023417A1 publication Critical patent/WO2024023417A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/1523—Matrix displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/176—Camera images
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/178—Warnings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/21—Optical features of instruments using cameras

Definitions

  • Motor vehicle comprising a system for rendering images of the thermal engine to the user of said vehicle
  • the present invention claims the priority of French application 2207692 filed on 07.26.2022, the content of which (text, drawings and claims) is here incorporated by reference.
  • the present invention generally relates to systems for detecting and warning of malfunctions of a thermal engine of a motor vehicle. It relates more particularly to a motor vehicle comprising a system for rendering images of the thermal engine to the user of said vehicle; such a system restoring images of the heat engine and its associated lubrication and cooling circuits in the cockpit of the vehicle allowing the vehicle user to visualize a malfunction.
  • the invention consists of providing the vehicle user with visual information on the real-time operating state of the heat engine and its circuits. associated, in situ, in its under-hood environment. Thanks to the invention, the user can anticipate a malfunction and ensure preventive maintenance in the event, for example, of a malfunction of a thermostat (temperature probe/sensor), a leak of coolant or oil, etc. engine overheating, etc.
  • the invention finds an interesting application in automobile diagnostics.
  • the present invention has as its first object a motor vehicle comprising a heat engine with its associated cooling circuit and lubrication circuit, an engine control device receiving information from a plurality of sensors arranged on or near the heat engine and its associated circuits and capable of detecting malfunctions of the heat engine and its associated circuits based on the signals delivered by the plurality of sensors; said vehicle further comprising a thermal camera arranged in the environment close to the thermal engine and its associated circuits, capable of producing a thermal image of the thermal engine and its associated circuits and an image display management system capable of restoring the thermal image on at least one screen arranged in the cockpit of the vehicle allowing the user of the vehicle to visualize potential malfunctions and their locations.
  • the image display management system is also capable of displaying another image on at least one screen arranged in the cockpit of the vehicle; said other image comprising a graphic representative of the heat engine with its associated circuits; the image display management system being capable of superimposing the location of a malfunction zone detected by the engine control device on said graphics.
  • the thermal camera is arranged in the engine compartment of the vehicle so as to exploit the maximum thermal radiation emitted by the thermal engine and its associated circuits in its environment in the engine compartment making it possible to offer the user the provides an overall assessment of the operation of the heat engine and its associated circuits.
  • the plurality of sensors comprises at least one temperature sensor of the coolant circulating in the cooling circuit of the heat engine, a coolant level sensor, an oil pressure sensor, a temperature sensor. oil level, and a oil viscosity sensor in the thermal engine lubrication circuit, and a coolant leak detection sensor.
  • the vehicle comprises first and second screens arranged one above the other in front of the dashboard of the vehicle cockpit; the image display management system displaying the thermal image of the heat engine and its associated circuits on one of the first or second screens, and the other image, corresponding to the graphics representative of the heat engine and its associated circuits , being displayed on the other screen.
  • the present invention provides a better perception and understanding of the operation of the vehicle and in particular of its thermal engine, thanks to imaging of the thermal engine and its associated circuits, on a screen, in particular a multimedia screen, present in the cockpit of the vehicle.
  • FIG. 1 illustrates a first mode of image display of the thermal engine and its associated circuits, of a motor vehicle according to the invention
  • FIG. 2 illustrates a second image display mode of the thermal engine and its associated circuits, of a motor vehicle according to the invention
  • FIG. 3 illustrates a third mode of image display of the thermal engine and its associated circuits, of a vehicle according to the invention.
  • FIG. 4 illustrates a block diagram of a motor vehicle according to the invention.
  • FIG. 1 there is shown the cockpit 10 of a motor vehicle 100 according to the invention and more precisely the dashboard 11 of the vehicle 100 equipped with a double screen 20, for example multimedia, or with two superimposed screens l one above the other 21 and 22, arranged on the front face of the dashboard 11.
  • Screens, particularly multimedia are present in most vehicles today and allow multiple information to be displayed on the vehicle and its environment, multimedia content, etc. They also have touch controls for adjusting certain vehicle equipment such as air conditioning and allow you to view current adjustment parameters: set temperature, etc.
  • These screens also allow you to display the functionalities implemented by driving assistance systems referred to as “ADAS” systems, an acronym for “Advanced Driver Assistance System”: such as keeping the vehicle in its lane, vehicle tracking, obstacle detection, etc.
  • ADAS Driving Assistance System
  • This information is complementary to the basic information presented in particular on the dashboard in order to improve safety, comfort or navigation.
  • the upper screen 21 displays images 210 relating to vehicle tracking and obstacle detection and the lower screen 22 displays an image 221 including a graphic representing the model thermal engine 30 present in the engine compartment of the vehicle 100 with its cooling circuit 31 and its lubrication circuit 32.
  • This graphical representation in perspective makes it possible to locate the zone 33 at the origin of a potential malfunction of the thermal engine 30 and of its associated circuits 31 and 32 and to visualize it (here a malfunction zone 33, for example a water leak, is identified by a cross inscribed in a circle at the level of the radiator outlet).
  • the upper screen 21 always displays images 210 relating to vehicle tracking and obstacle detection.
  • the lower screen 22 renders a thermal image 222 of the thermal engine 30 with its cooling circuit 31 and lubrication circuit 32.
  • the thermal image 222 makes it possible to reveal the cold and hot zones of the thermal engine 30 and its associated circuits 31, 32 which will allow the user of the vehicle 100 to have an overall visual assessment of the thermal behavior of the thermal engine 30 and its associated circuits 31, 32 and therefore to detect malfunctions by comparing for example the current thermal image 222 with a thermal image reference pre-recorded in a database. A malfunction can then be located and represented on the graphics in image 221.
  • Figure 3 illustrates a third display mode in which the upper screen 21 displays the thermal image 222 of the heat engine 30 and its associated circuits 31 and 32, and the lower screen 22 displays the image 221 of the graphical representation in perspective of the heat engine 30 and its associated circuits 31 and 32.
  • the upper screen 21 which displays the image 221 of the graphical representation in perspective of the heat engine 30 and its associated circuits 31 and 32 and the lower screen 22 which displays the thermal image 222 of the thermal engine 30 and its associated circuits 31 and 32.
  • the images 221 and 222 can be displayed on a single screen 20 by dividing the screen 20 into two parts and/or by providing two separate display windows on the screen 20.
  • Figure 4 illustrates a block diagram of the vehicle 100 according to the invention.
  • the vehicle 100 comprises a thermal engine 30 and its associated cooling and lubrication circuits 31 and 32, housed in the engine compartment 300 of the vehicle 100, under the engine hood, not shown, of the vehicle 100.
  • the engine compartment 300 is delimited, in Figure 4, by a closed contour in broken lines.
  • a thermal camera 50 is arranged in the engine compartment 300, in the environment close to the heat engine 30 and its associated circuits 31 and 32. It is arranged so as to exploit the maximum of infrared radiation (heat waves) released, or emitted , by the heat engine 30 and its associated circuits (cooling 31 and lubrication 32).
  • the thermal camera 50 produces images of the intensity of the infrared radiation emitted by the heat engine 30 and its associated circuits 31 and 32. The higher the temperature, the higher the intensity of the infrared radiation.
  • the thermal camera 50 includes a “sensor” part, not shown, a chip sensitive to infrared radiation. This chip contains thousands of pixels organized in a grid; each pixel reacting to the intensity of infrared radiation it receives by producing in return an electrical signal of intensity level which is proportional to the intensity of the infrared radiation received.
  • the thermal camera 50 also includes a processing unit (not shown) which performs a correspondence between the level of the electrical signal and a color chosen from a color scale ranging from different shades of blue (for the parts not emitting or little heat) to shades of red and orange (for parts emitting heat).
  • This correspondence is stored in a processing unit of the thermal camera 50 or can be transferred to an engine control device 60 of the vehicle 100. This correspondence makes it possible to obtain a false color thermal image 222 of the thermal engine 30 and its associated circuits 31 and 32, at the output of the thermal camera 50.
  • the thermal image 222 is processed by the device engine control 60 which in connection with a plurality of sensors 7n, arranged on or near the heat engine 30 and its associated circuits 31 and 32, is capable of detecting and locating a possible malfunction of the heat engine and its associated circuits.
  • the plurality of sensors 7n comprises at least one temperature sensor 71 of the coolant circulating in the cooling circuit 31 of the heat engine 30, a coolant level sensor 72, an oil pressure sensor 73, a sensor oil level 74, or lack of oil, in the lubrication circuit 32 of the thermal engine 30, an oil viscosity sensor 75, a coolant leak detection sensor 76, etc. All of these 7n sensors are able to transform a physical quantity into a signal that can be used by the engine control device 60 to detect and locate a malfunction.
  • the engine control device 60 is coupled to an image display management system 80 on one or more screens 20 (21, 22) arranged on the dashboard 11 of the vehicle 100 as illustrated in Figures 1 to 3
  • the image display management system 80 makes it possible to adapt the format of the images processed by the engine control device 60 to the format of the screens 20. It makes it possible to display the thermal image 222 on the screen 20. It includes, or is coupled to, a “bank” of images comprising in particular a graphic representative of the thermal engine model 30 present in the engine compartment 300 of the vehicle 100 and its associated circuits 31, 32, which it restores as an image 221 on the screen 20.
  • the locations of the malfunctions detected by the engine control device 60 are also managed by the image display management system 80 so as to superimpose the malfunction zones 33 on the graphics of the picture 221.
  • the positioning of the thermal camera 50 is determined so as to exploit the maximum thermal radiation (infrared radiation) in order to optimize the visibility of the thermal engine 30 and its associated circuits 31, 32 in its environment (engine compartment 300) thus allowing 'offer the user of the vehicle 100 an overall assessment, or diagnosis, of the operation of the thermal engine 30 and its associated circuits 31 and 32.
  • maximum thermal radiation infrared radiation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Instrument Panels (AREA)

Abstract

Disclosed is a motor vehicle (100) comprising a thermal camera (50) that is arranged in the local environment of the combustion engine (30) and its associated circuits (31, 32) and that is able to produce a thermal image of the combustion engine (30) and its associated circuits (31, 32), and a system (80) for managing image display that is able to render the thermal image on at least one screen (20) arranged in the cockpit of the vehicle (100) allowing the user of the vehicle (100) to view potential malfunctions and their locations.

Description

DESCRIPTION DESCRIPTION
Titre de l’invention : Véhicule automobile comportant un système de restitution d’images du moteur thermique à l’utilisateur dudit véhicule Title of the invention: Motor vehicle comprising a system for rendering images of the thermal engine to the user of said vehicle
La présente invention revendique la priorité de la demande française 2207692 déposée le 26.07.2022 dont le contenu (texte, dessins et revendications) est ici incorporé par référence. La présente invention concerne de manière générale les systèmes de détection et d’avertissement de dysfonctionnement d’un moteur thermique d’un véhicule automobile. Elle se rapporte plus particulièrement à un véhicule automobile comportant un système de restitution d’images du moteur thermique à l’utilisateur dudit véhicule ; un tel système restituant des images du moteur thermique et de ses circuits de lubrification et de refroidissement associés dans le cockpit du véhicule permettant à l’utilisateur du véhicule de visualiser un dysfonctionnement. The present invention claims the priority of French application 2207692 filed on 07.26.2022, the content of which (text, drawings and claims) is here incorporated by reference. The present invention generally relates to systems for detecting and warning of malfunctions of a thermal engine of a motor vehicle. It relates more particularly to a motor vehicle comprising a system for rendering images of the thermal engine to the user of said vehicle; such a system restoring images of the heat engine and its associated lubrication and cooling circuits in the cockpit of the vehicle allowing the vehicle user to visualize a malfunction.
Les systèmes actuels de détection et d’avertissement de dysfonctionnement d’un moteur thermique et de ses circuits associés, disposent essentiellement d’un capteur de température de liquide de refroidissement, un capteur de fuite de liquide de refroidissement dans le circuit de refroidissement du moteur, un capteur de pression et de niveau d’huile moteur dans le circuit de lubrification du moteur thermique. Tous ces capteurs permettent d’alerter le conducteur sur un dysfonctionnement du moteur thermique, en temps réel, par l’intermédiaire de moyens d’affichage de messages d’alerte sur un écran du tableau de bord et/ou d’allumage de témoins lumineux explicites sur le tableau de bord du véhicule. Ces moyens permettent d’alerter le conducteur sur un niveau d’huile insuffisant mais également de demander l’arrêt immédiat du véhicule en cas notamment d’une surchauffe du moteur thermique à la suite d’une fuite de liquide de refroidissement dans le circuit de refroidissement du moteur thermique. Current systems for detecting and warning of malfunction of a heat engine and its associated circuits essentially have a coolant temperature sensor, a coolant leak sensor in the engine cooling circuit. , an engine oil pressure and level sensor in the thermal engine lubrication circuit. All of these sensors make it possible to alert the driver to a malfunction of the thermal engine, in real time, by means of displaying alert messages on a dashboard screen and/or activating indicator lights. explicit on the vehicle dashboard. These means make it possible to alert the driver to an insufficient oil level but also to request the immediate stopping of the vehicle in the event of overheating of the thermal engine following a leak of coolant in the circuit. cooling of the heat engine.
Ces systèmes restent relativement imprécis quant à l’origine du dysfonctionnement détecté et ne permettent pas notamment de localiser visuellement ce dysfonctionnement. Ils ne permettent pas non plus de prévenir un dysfonctionnement par une surveillance visuelle en continu de l’état de fonctionnement du moteur dans son environnement sous capot. These systems remain relatively imprecise as to the origin of the detected malfunction and in particular do not make it possible to visually locate this malfunction. They also do not make it possible to prevent a malfunction through continuous visual monitoring of the operating state of the engine in its environment under the hood.
L’invention consiste à fournir à l’utilisateur du véhicule une information visuelle sur l’état de fonctionnement en temps réel du moteur thermique et de ses circuits associés, in situ, dans son environnement sous capot. Grace à l’invention, l’utilisateur peut anticiper un dysfonctionnement et assurer une maintenance préventive en cas par exemple de dysfonctionnement d’un thermostat (sonde/capteur de température), d’une fuite de liquide de refroidissement ou d’huile, d’une surchauffe moteur, etc. L’invention trouve une application intéressante dans le diagnostic automobile. The invention consists of providing the vehicle user with visual information on the real-time operating state of the heat engine and its circuits. associated, in situ, in its under-hood environment. Thanks to the invention, the user can anticipate a malfunction and ensure preventive maintenance in the event, for example, of a malfunction of a thermostat (temperature probe/sensor), a leak of coolant or oil, etc. engine overheating, etc. The invention finds an interesting application in automobile diagnostics.
A cet effet, la présente invention a pour premier objet un véhicule automobile comportant un moteur thermique avec son circuit de refroidissement et son circuit de lubrification associés, un dispositif de contrôle moteur recevant des informations d’une pluralité de capteurs disposés sur ou à proximité du moteur thermique et ses circuits associés et apte à détecter des dysfonctionnements du moteur thermique et ses circuits associés en fonction des signaux délivrés par la pluralité de capteurs ; ledit véhicule comportant en outre une caméra thermique agencée dans l’environnement proche du moteur thermique et ses circuits associés, apte à produire une image thermique du moteur thermique et ses circuits associés et un système de gestion de l’affichage d’image apte à restituer l’image thermique sur au moins un écran agencé dans le cockpit du véhicule permettant à l’utilisateur du véhicule de visualiser les potentiels dysfonctionnements et leurs localisations.To this end, the present invention has as its first object a motor vehicle comprising a heat engine with its associated cooling circuit and lubrication circuit, an engine control device receiving information from a plurality of sensors arranged on or near the heat engine and its associated circuits and capable of detecting malfunctions of the heat engine and its associated circuits based on the signals delivered by the plurality of sensors; said vehicle further comprising a thermal camera arranged in the environment close to the thermal engine and its associated circuits, capable of producing a thermal image of the thermal engine and its associated circuits and an image display management system capable of restoring the thermal image on at least one screen arranged in the cockpit of the vehicle allowing the user of the vehicle to visualize potential malfunctions and their locations.
Selon une caractéristique, le système de gestion de l’affichage d’image est apte, en outre, à afficher une autre image sur au moins un écran agencé dans le cockpit du véhicule ; ladite autre image comportant un graphisme représentatif du moteur thermique avec ses circuits associés ; le système de gestion de l’affichage d’image étant apte à superposer la localisation d’une zone de dysfonctionnement détectée par le dispositif de contrôle moteur sur ledit graphisme. According to one characteristic, the image display management system is also capable of displaying another image on at least one screen arranged in the cockpit of the vehicle; said other image comprising a graphic representative of the heat engine with its associated circuits; the image display management system being capable of superimposing the location of a malfunction zone detected by the engine control device on said graphics.
Selon une autre caractéristique, la caméra thermique est agencée dans le compartiment moteur du véhicule de manière à exploiter le maximum de rayonnement thermique émis par le moteur thermique et ses circuits associés dans son environnement dans le compartiment moteur permettant d’offrir à l’utilisateur du véhicule un bilan global du fonctionnement du moteur thermique et ses circuits associés. According to another characteristic, the thermal camera is arranged in the engine compartment of the vehicle so as to exploit the maximum thermal radiation emitted by the thermal engine and its associated circuits in its environment in the engine compartment making it possible to offer the user the provides an overall assessment of the operation of the heat engine and its associated circuits.
Selon une autre caractéristique, la pluralité de capteurs comporte au moins un capteur de température du liquide de refroidissement circulant dans le circuit de refroidissement du moteur thermique, un capteur de niveau du liquide de refroidissement, un capteur de pression d’huile, un capteur de niveau d’huile, et un capteur de viscosité de l’huile dans le circuit de lubrification du moteur thermique, et un capteur de détection de fuite de liquide de refroidissement. According to another characteristic, the plurality of sensors comprises at least one temperature sensor of the coolant circulating in the cooling circuit of the heat engine, a coolant level sensor, an oil pressure sensor, a temperature sensor. oil level, and a oil viscosity sensor in the thermal engine lubrication circuit, and a coolant leak detection sensor.
Selon une autre caractéristique, le véhicule comporte des premier et deuxième écrans agencés l’un au-dessus de l’autre devant la planche de bord du cockpit du véhicule ; le système de gestion de l’affichage d’image affichant l’image thermique du moteur thermique et ses circuits associés sur l’un des premier ou deuxième écrans, et l’autre image, correspondant au graphisme représentatif du moteur thermique et ses circuits associés, étant affichée sur l’autre écran. According to another characteristic, the vehicle comprises first and second screens arranged one above the other in front of the dashboard of the vehicle cockpit; the image display management system displaying the thermal image of the heat engine and its associated circuits on one of the first or second screens, and the other image, corresponding to the graphics representative of the heat engine and its associated circuits , being displayed on the other screen.
La présente invention apporte par rapport aux solutions existantes une meilleure perception et compréhension du fonctionnement du véhicule et notamment de son moteur thermique et ce, grâce à une mise en images du moteur thermique et ses circuits associés, sur un écran, notamment un écran multimédia, présent dans le cockpit du véhicule. Compared to existing solutions, the present invention provides a better perception and understanding of the operation of the vehicle and in particular of its thermal engine, thanks to imaging of the thermal engine and its associated circuits, on a screen, in particular a multimedia screen, present in the cockpit of the vehicle.
D’autres avantages et caractéristiques pourront ressortir plus clairement de la description qui va suivre, donnée uniquement à titre d’exemple non limitatif et faite en se référant aux dessins dans lesquels : Other advantages and characteristics may emerge more clearly from the description which follows, given solely by way of non-limiting example and made with reference to the drawings in which:
[Fig. 1] illustre un premier mode d’affichage d’image du moteur thermique et ses circuits associés, d’un véhicule automobile selon l’invention ; [Fig. 1] illustrates a first mode of image display of the thermal engine and its associated circuits, of a motor vehicle according to the invention;
[Fig. 2] illustre un deuxième mode d’affichage d’image du moteur thermique et ses circuits associés, d’un véhicule automobile selon l’invention ; [Fig. 2] illustrates a second image display mode of the thermal engine and its associated circuits, of a motor vehicle according to the invention;
[Fig. 3] illustre un troisième mode d’affichage d’image du moteur thermique et ses circuits associés, d’un véhicule selon l’invention ; et [Fig. 3] illustrates a third mode of image display of the thermal engine and its associated circuits, of a vehicle according to the invention; And
[Fig. 4] illustre un schéma-bloc d’un véhicule automobile selon l’invention. [Fig. 4] illustrates a block diagram of a motor vehicle according to the invention.
Sur les figures, les mêmes éléments sont désignés par les mêmes repères. In the figures, the same elements are designated by the same references.
Sur la figure 1 , on a représenté le cockpit 10 d’un véhicule automobile 100 selon l’invention et plus précisément la planche de bord 11 du véhicule 100 équipé d’un double écran 20, par exemple multimédia, ou de deux écrans superposés l’un au- dessus de l’autre 21 et 22, agencés sur la face avant de la planche de bord 11 . Les écrans, notamment multimédia, sont aujourd’hui présents dans la plupart des véhicules et permettent d’afficher de multiples informations sur le véhicule et son environnement, des contenus multimédia, etc. Ils disposent également de commandes tactiles pour le réglage de certains équipements du véhicule comme la climatisation et permettent de visualiser les paramètres de réglages courants : température de consigne, etc. Ces écrans permettent également d’afficher les fonctionnalités mises en œuvre par les systèmes d’aide à la conduite désignés par systèmes « ADAS », acronyme anglosaxon pour « Advanced Driver Assistance System » : comme le maintien du véhicule dans sa voie, le suivi de véhicules, la détection d’obstacles, etc. In Figure 1, there is shown the cockpit 10 of a motor vehicle 100 according to the invention and more precisely the dashboard 11 of the vehicle 100 equipped with a double screen 20, for example multimedia, or with two superimposed screens l one above the other 21 and 22, arranged on the front face of the dashboard 11. Screens, particularly multimedia, are present in most vehicles today and allow multiple information to be displayed on the vehicle and its environment, multimedia content, etc. They also have touch controls for adjusting certain vehicle equipment such as air conditioning and allow you to view current adjustment parameters: set temperature, etc. These screens also allow you to display the functionalities implemented by driving assistance systems referred to as “ADAS” systems, an acronym for “Advanced Driver Assistance System”: such as keeping the vehicle in its lane, vehicle tracking, obstacle detection, etc.
Ces informations sont complémentaires des informations de base présentées notamment sur le tableau de bord afin d'améliorer la sécurité, le confort ou la navigation. This information is complementary to the basic information presented in particular on the dashboard in order to improve safety, comfort or navigation.
Dans un premier mode d’affichage, illustré à la figure 1 , l’écran supérieur 21 affiche des images 210 relatives au suivi de véhicules et de détection d’obstacles et l’écran inférieur 22 affiche une image 221 comportant un graphisme représentant le modèle de moteur thermique 30 présent dans le compartiment moteur du véhicule 100 avec son circuit de refroidissement 31 et son circuit de lubrification 32. Cette représentation graphique en perspective permet de localiser la zone 33 à l’origine d’un potentiel dysfonctionnement du moteur thermique 30 et de ses circuits associés 31 et 32 et de la visualiser (ici une zone 33 de dysfonctionnement, par exemple une fuite d’eau, est identifiée par une croix inscrite dans un cercle au niveau de la sortie du radiateur). In a first display mode, illustrated in Figure 1, the upper screen 21 displays images 210 relating to vehicle tracking and obstacle detection and the lower screen 22 displays an image 221 including a graphic representing the model thermal engine 30 present in the engine compartment of the vehicle 100 with its cooling circuit 31 and its lubrication circuit 32. This graphical representation in perspective makes it possible to locate the zone 33 at the origin of a potential malfunction of the thermal engine 30 and of its associated circuits 31 and 32 and to visualize it (here a malfunction zone 33, for example a water leak, is identified by a cross inscribed in a circle at the level of the radiator outlet).
Dans un deuxième mode d’affichage, illustré à la figure 2, l’écran supérieur 21 affiche toujours des images 210 relatives au suivi de véhicules et de détection d’obstacles. L’écran inférieur 22 restitue une image thermique 222 du moteur thermique 30 avec son circuit de refroidissement 31 et de lubrification 32. L’image thermique 222 permet de révéler les zones froides et chaudes du moteur thermique 30 et de ses circuits 31 , 32 associés qui permettront à l’utilisateur du véhicule 100 d’avoir un bilan global visuel du comportement thermique du moteur thermique 30 et ses circuits associés 31 , 32 et donc de détecter des dysfonctionnements en comparant par exemple l’image thermique courante 222 avec une image thermique de référence préenregistrée dans une base de données. Un dysfonctionnement pourra alors être localisé et représenté sur le graphisme de l’image 221 . In a second display mode, illustrated in Figure 2, the upper screen 21 always displays images 210 relating to vehicle tracking and obstacle detection. The lower screen 22 renders a thermal image 222 of the thermal engine 30 with its cooling circuit 31 and lubrication circuit 32. The thermal image 222 makes it possible to reveal the cold and hot zones of the thermal engine 30 and its associated circuits 31, 32 which will allow the user of the vehicle 100 to have an overall visual assessment of the thermal behavior of the thermal engine 30 and its associated circuits 31, 32 and therefore to detect malfunctions by comparing for example the current thermal image 222 with a thermal image reference pre-recorded in a database. A malfunction can then be located and represented on the graphics in image 221.
La figure 3 illustre un troisième mode d’affichage dans lequel l’écran supérieur 21 affiche l’image thermique 222 du moteur thermique 30 et ses circuits associés 31 et 32, et l’écran inférieur 22 affiche l’image 221 de la représentation graphique en perspective du moteur thermique 30 et ses circuits associés 31 et 32. Figure 3 illustrates a third display mode in which the upper screen 21 displays the thermal image 222 of the heat engine 30 and its associated circuits 31 and 32, and the lower screen 22 displays the image 221 of the graphical representation in perspective of the heat engine 30 and its associated circuits 31 and 32.
Dans une variante, non représentée, c’est l’écran supérieur 21 qui affiche l’image 221 de la représentation graphique en perspective du moteur thermique 30 et ses circuits associés 31 et 32 et l’écran inférieur 22 qui affiche l’image thermique 222 du moteur thermique 30 et ses circuits associés 31 et 32. In a variant, not shown, it is the upper screen 21 which displays the image 221 of the graphical representation in perspective of the heat engine 30 and its associated circuits 31 and 32 and the lower screen 22 which displays the thermal image 222 of the thermal engine 30 and its associated circuits 31 and 32.
A titre de variante, les images 221 et 222 peuvent être affichées sur un seul et même écran 20 en divisant l’écran 20 en deux parties et/ou en prévoyant deux fenêtres d’affichage distinctes sur l’écran 20. As a variant, the images 221 and 222 can be displayed on a single screen 20 by dividing the screen 20 into two parts and/or by providing two separate display windows on the screen 20.
La figure 4 illustre un schéma bloc du véhicule 100 selon l’invention. Figure 4 illustrates a block diagram of the vehicle 100 according to the invention.
Le véhicule 100 comporte un moteur thermique 30 et ses circuits de refroidissement et de lubrifaction, associés, 31 et 32, logés dans le compartiment moteur 300 du véhicule 100, sous le capot moteur, non représenté, du véhicule 100. Le compartiment moteur 300 est délimité, sur la figure 4, par un contour fermé en trait discontinu. The vehicle 100 comprises a thermal engine 30 and its associated cooling and lubrication circuits 31 and 32, housed in the engine compartment 300 of the vehicle 100, under the engine hood, not shown, of the vehicle 100. The engine compartment 300 is delimited, in Figure 4, by a closed contour in broken lines.
Une caméra thermique 50 est agencée dans le compartiment moteur 300, dans l’environnement proche du moteur thermique 30 et ses circuits associés 31 et 32. Elle est agencée de manière à exploiter le maximum de rayonnement infrarouge (ondes de chaleur) dégagé, ou émis, par le moteur thermique 30 et ses circuits associés (refroidissement 31 et lubrification 32). A thermal camera 50 is arranged in the engine compartment 300, in the environment close to the heat engine 30 and its associated circuits 31 and 32. It is arranged so as to exploit the maximum of infrared radiation (heat waves) released, or emitted , by the heat engine 30 and its associated circuits (cooling 31 and lubrication 32).
La caméra thermique 50 produit des images de l’intensité du rayonnement infrarouge émis par le moteur thermique 30 et ses circuits associés 31 et 32. Plus la température est élevée et plus l’intensité du rayonnement infrarouge est élevée. La caméra thermique 50 comporte une partie « capteur », non représentée, une puce sensible aux rayonnements infrarouges. Cette puce contient des milliers de pixels organisés dans une grille ; chaque pixel réagissant à intensité de rayonnement infrarouge qu’il reçoit en produisant en retour un signal électrique de niveau d’intensité qui est proportionnel à l’intensité du rayonnement infrarouge reçue. La caméra thermique 50 comporte également une unité de traitement (non représentée) qui effectue une correspondance entre le niveau du signal électrique et une couleur choisie à partir d’une échelle de couleur allant de différentes nuances de bleu (pour les parties ne dégageant pas ou peu de chaleur) à des nuances de rouge et orange (pour des parties dégageant de la chaleur). Cette correspondance est mise en mémoire dans une unité de traitement de la caméra thermique 50 ou peut être déportée dans un dispositif de contrôle moteur 60 du véhicule 100. Cette correspondance permet d’obtenir une image thermique 222 en fausse couleur du moteur thermique 30 et ses circuits 31 et 32 associés, en sortie de la caméra thermique 50. L’image thermique 222 est traitée par le dispositif de contrôle moteur 60 qui en liaison avec une pluralités de capteurs 7n, agencés sur ou à proximité du moteur thermique 30 et de ses circuits associés 31 et 32, est apte à détecter et localiser un éventuel dysfonctionnement du moteur thermique et de ses circuits associés. The thermal camera 50 produces images of the intensity of the infrared radiation emitted by the heat engine 30 and its associated circuits 31 and 32. The higher the temperature, the higher the intensity of the infrared radiation. The thermal camera 50 includes a “sensor” part, not shown, a chip sensitive to infrared radiation. This chip contains thousands of pixels organized in a grid; each pixel reacting to the intensity of infrared radiation it receives by producing in return an electrical signal of intensity level which is proportional to the intensity of the infrared radiation received. The thermal camera 50 also includes a processing unit (not shown) which performs a correspondence between the level of the electrical signal and a color chosen from a color scale ranging from different shades of blue (for the parts not emitting or little heat) to shades of red and orange (for parts emitting heat). This correspondence is stored in a processing unit of the thermal camera 50 or can be transferred to an engine control device 60 of the vehicle 100. This correspondence makes it possible to obtain a false color thermal image 222 of the thermal engine 30 and its associated circuits 31 and 32, at the output of the thermal camera 50. The thermal image 222 is processed by the device engine control 60 which in connection with a plurality of sensors 7n, arranged on or near the heat engine 30 and its associated circuits 31 and 32, is capable of detecting and locating a possible malfunction of the heat engine and its associated circuits.
La pluralité de capteurs 7n comporte au moins un capteur de température 71 du liquide de refroidissement circulant dans le circuit de refroidissement 31 du moteur thermique 30, un capteur de niveau de liquide de refroidissement 72, un capteur de pression d’huile 73, un capteur de niveau d’huile 74, ou manque d’huile, dans le circuit de lubrification 32 du moteur thermique 30, un capteur de viscosité 75 de l’huile, un capteur de détection de fuite de liquide de refroidissement 76, ....Tous ces capteurs 7n sont à même de transformer une grandeur physique en un signal exploitable par le dispositif de contrôle moteur 60 pour permettre de détecter et localiser un dysfonctionnement. The plurality of sensors 7n comprises at least one temperature sensor 71 of the coolant circulating in the cooling circuit 31 of the heat engine 30, a coolant level sensor 72, an oil pressure sensor 73, a sensor oil level 74, or lack of oil, in the lubrication circuit 32 of the thermal engine 30, an oil viscosity sensor 75, a coolant leak detection sensor 76, etc. All of these 7n sensors are able to transform a physical quantity into a signal that can be used by the engine control device 60 to detect and locate a malfunction.
Le dispositif de contrôle moteur 60 est couplé à un système de gestion de l’affichage d’images 80 sur un ou plusieurs écrans 20 (21 , 22) agencés sur la planche de bord 11 du véhicule 100 comme illustré sur les figures 1 à 3. Le système de gestion de l’affichage d’images 80 permet d’adapter le format des images traitées par le dispositif de contrôle moteur 60 au format des écrans 20. Il permet d’afficher l’image thermique 222 sur l’écran 20. Il comporte, ou est couplé, à une « banque » d’images comportant notamment un graphisme représentatif du modèle de moteur thermique 30 présent dans le compartiment moteur 300 du véhicule 100 et ses circuits associés 31 , 32, qu’il restitue comme image 221 sur l’écran 20. Les localisations des dysfonctionnements détectés par le dispositif de contrôle moteur 60 sont également gérées par le système de gestion de l’affichage d’images 80 de manière à superposer les zones de dysfonctionnement 33 sur le graphisme de l’image 221 . The engine control device 60 is coupled to an image display management system 80 on one or more screens 20 (21, 22) arranged on the dashboard 11 of the vehicle 100 as illustrated in Figures 1 to 3 The image display management system 80 makes it possible to adapt the format of the images processed by the engine control device 60 to the format of the screens 20. It makes it possible to display the thermal image 222 on the screen 20. It includes, or is coupled to, a “bank” of images comprising in particular a graphic representative of the thermal engine model 30 present in the engine compartment 300 of the vehicle 100 and its associated circuits 31, 32, which it restores as an image 221 on the screen 20. The locations of the malfunctions detected by the engine control device 60 are also managed by the image display management system 80 so as to superimpose the malfunction zones 33 on the graphics of the picture 221.
Le positionnement de la caméra thermique 50 est déterminé de manière à exploiter le maximum de rayonnement thermique (rayonnement infrarouge) afin d’optimiser la visibilité du moteur thermique 30 et ses circuits associés 31 , 32 dans son environnement (compartiment moteur 300) permettant ainsi d’offrir à l’utilisateur du véhicule 100 un bilan, ou diagnostic, global du fonctionnement du moteur thermique 30 et ses circuits associés 31 et 32. The positioning of the thermal camera 50 is determined so as to exploit the maximum thermal radiation (infrared radiation) in order to optimize the visibility of the thermal engine 30 and its associated circuits 31, 32 in its environment (engine compartment 300) thus allowing 'offer the user of the vehicle 100 an overall assessment, or diagnosis, of the operation of the thermal engine 30 and its associated circuits 31 and 32.

Claims

REVENDICATIONS
1. Véhicule automobile (100) comportant un moteur thermique (30) avec son circuit de refroidissement (31 ) et son circuit de lubrification (32) associés, un dispositif de contrôle moteur (60) recevant des informations d’une pluralité de capteurs (7n) disposés sur ou à proximité du moteur thermique (30) et ses circuits associés (31 et 32) et apte à détecter des dysfonctionnements du moteur thermique (30) et ses circuits associés (31 , 32) en fonction des signaux délivrés par la pluralité de capteurs (7n), ledit véhicule (100) comportant en outre une caméra thermique (50) agencée dans l’environnement proche du moteur thermique (30) et ses circuits associés (31 , 32), apte à produire une image thermique (222) du moteur thermique (30) et ses circuits associés (31 , 32) et un système de gestion de l’affichage d’image (80) apte à restituer l’image thermique (222) sur au moins un écran (20) agencé dans le cockpit (10) du véhicule (100) permettant à l’utilisateur du véhicule (100) de visualiser les potentiels dysfonctionnements et leurs localisations. 1. Motor vehicle (100) comprising a thermal engine (30) with its associated cooling circuit (31) and lubrication circuit (32), an engine control device (60) receiving information from a plurality of sensors ( 7n) arranged on or near the heat engine (30) and its associated circuits (31 and 32) and capable of detecting malfunctions of the heat engine (30) and its associated circuits (31, 32) as a function of the signals delivered by the plurality of sensors (7n), said vehicle (100) further comprising a thermal camera (50) arranged in the environment close to the thermal engine (30) and its associated circuits (31, 32), capable of producing a thermal image ( 222) of the thermal engine (30) and its associated circuits (31, 32) and an image display management system (80) capable of rendering the thermal image (222) on at least one screen (20) arranged in the cockpit (10) of the vehicle (100) allowing the user of the vehicle (100) to visualize potential malfunctions and their locations.
2. Véhicule automobile (100) selon la revendication précédente, dans lequel le système de gestion de l’affichage d’image (80) est apte, en outre, à afficher une autre image (221 ) sur au moins un écran (20) agencé dans le cockpit (10) du véhicule (100) ; ladite autre image (221 ) comportant un graphisme (23) représentatif du moteur thermique (30) avec ses circuits associés (31 , 32) ; le système de gestion de l’affichage d’image (80) étant apte à superposer la localisation d’une zone de dysfonctionnement (33) détectée par le dispositif de contrôle moteur (60) sur ledit graphisme (23). 2. Motor vehicle (100) according to the preceding claim, in which the image display management system (80) is capable, in addition, of displaying another image (221) on at least one screen (20) arranged in the cockpit (10) of the vehicle (100); said other image (221) comprising a graphic (23) representative of the heat engine (30) with its associated circuits (31, 32); the image display management system (80) being capable of superimposing the location of a malfunction zone (33) detected by the engine control device (60) on said graphics (23).
3. Véhicule (100) selon l’une des revendications précédentes, dans lequel la caméra thermique (50) est agencée dans le compartiment moteur (300) du véhicule (100) de manière à exploiter le maximum de rayonnement thermique émis par le moteur thermique (30) et ses circuits associés (31 , 32) dans son environnement dans le compartiment moteur (300) permettant d’offrir à l’utilisateur du véhicule (100) un bilan global du fonctionnement du moteur thermique (30) et ses circuits associés (31 et 32). 3. Vehicle (100) according to one of the preceding claims, in which the thermal camera (50) is arranged in the engine compartment (300) of the vehicle (100) so as to exploit the maximum thermal radiation emitted by the thermal engine (30) and its associated circuits (31, 32) in its environment in the engine compartment (300) making it possible to offer the user of the vehicle (100) an overall assessment of the operation of the heat engine (30) and its associated circuits (31 and 32).
4. Véhicule (100) selon l’une des revendications précédentes, dans lequel la pluralité de capteurs (7n) comporte au moins un capteur de température (71 ) du liquide de refroidissement circulant dans le circuit de refroidissement (31 ) du moteur thermique (30), un capteur de niveau (72) du liquide de refroidissement, un capteur de pression (73) d’huile, un capteur de niveau (74) d’huile, et un capteur de viscosité (75) de l’huile dans le circuit de lubrification (32) du moteur thermique (30), et un capteur de détection de fuite de liquide de refroidissement (76). 4. Vehicle (100) according to one of the preceding claims, wherein the plurality of sensors (7n) comprises at least one temperature sensor (71) of the coolant circulating in the cooling circuit (31) of the heat engine ( 30), a coolant level sensor (72), an oil pressure sensor (73), an oil level sensor (74), and a viscosity sensor (75) of the oil in the lubrication circuit (32) of the thermal engine (30), and a coolant leak detection sensor (76).
5. Véhicule (100) selon l’une des revendications précédentes, comportant des premier et deuxième écrans (21 , 22) agencés l’un au-dessus de l’autre devant la planche de bord (11 ) du cockpit (10) du véhicule (100) et dans lequel le système de gestion de l’affichage d’image (80) affiche l’image thermique (222) du moteur thermique (30) et ses circuits associés (31 , 32) sur l’un des premier ou deuxième écrans (21 ou 22), et l’autre image (221 ), correspondant au graphisme (33) représentatif du moteur thermique (30) et ses circuits associés (31 , 32), sur l’autre écran (21 ou 22). 5. Vehicle (100) according to one of the preceding claims, comprising first and second screens (21, 22) arranged one above the other in front of the dashboard (11) of the cockpit (10) of the vehicle (100) and in which the image display management system (80) displays the thermal image (222) of the thermal engine (30) and its associated circuits (31, 32) on one of the first or second screens (21 or 22), and the other image (221), corresponding to the graphics (33) representative of the heat engine (30) and its associated circuits (31, 32), on the other screen (21 or 22 ).
PCT/FR2023/050963 2022-07-26 2023-06-26 Motor vehicle comprising a system for rendering images of the combustion engine to the user of said vehicle WO2024023417A1 (en)

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FR2207692A FR3138377B1 (en) 2022-07-26 2022-07-26 Motor vehicle comprising a system for rendering images of the thermal engine to the user of said vehicle

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