WO2025224752A1 - A dynamic interactive system in a vehicle and a method thereof - Google Patents

A dynamic interactive system in a vehicle and a method thereof

Info

Publication number
WO2025224752A1
WO2025224752A1 PCT/IN2025/050641 IN2025050641W WO2025224752A1 WO 2025224752 A1 WO2025224752 A1 WO 2025224752A1 IN 2025050641 W IN2025050641 W IN 2025050641W WO 2025224752 A1 WO2025224752 A1 WO 2025224752A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
glazing
user
control unit
display
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
Application number
PCT/IN2025/050641
Other languages
French (fr)
Inventor
Robin C JAYARAM
Ramya RAMAMURTHY
Arunvel Thangamani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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 Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of WO2025224752A1 publication Critical patent/WO2025224752A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • 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
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • 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
    • B60K35/21—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
    • B60K35/23—Head-up displays [HUD]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04186—Touch location disambiguation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • B60K2360/143—Touch sensitive instrument input devices
    • B60K2360/1438—Touch 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
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77—Instrument locations other than the dashboard
    • B60K2360/785—Instrument locations other than the dashboard on or in relation to the windshield or windows

Definitions

  • the present disclosure relates to a dynamic interactive system in a vehicle and particularly it relates to a dynamic display system in the glazing of a vehicle.
  • Known in the art are regular Head- up displays that find application for a driver to obtain visual information during driving.
  • vehicles also include various systems such as and not limited infotainment and navigation systems. These systems are generally provided with a display around which mechanical control elements are arranged to provide a user means for interaction. More often such systems are provided in the dashboard.
  • the display combines at least some of the control elements into a touch panel display. In either case, it is predominantly the users seated in the front area of the vehicle who get access to such interactive systems and the usage of the control thereof.
  • Glazing refers to any and all the glass or similar material within a structure or the installation of any piece of glass or the similar material within a sash or frame.
  • the glass windows of an automobile are referred to as glazing.
  • Windshield or windscreen, backlite, sidelite, quaterlite, sunroof etc. are regarded as some instances of glazing in a vehicle.
  • the windshield of a vehicle is laminated glass, while the sidelite, backlite, are tempered glass.
  • Automotive glazing systems facilitates in simplifying the vehicle assembly process. Such modular systems provide adhesive bonding of the glazing to the vehicle and are means for additional features as well, such as being integrated with electronic systems.
  • automotive electronics or electronic systems used in vehicles, including engine management, ignition, radio, carputers, telematics, in-car entertainment systems, and others. Ignition, engine and transmission electronics are also found in trucks, motorcycles, off-road vehicles. Such automotive electronic systems include systems for driver assistance (like lane assistance and cruise control), passenger comfort (like Heating, ventilation, and air conditioning, HVAC) and entertainment systems (like vehicle audio system).
  • driver assistance like lane assistance and cruise control
  • passenger comfort like Heating, ventilation, and air conditioning, HVAC
  • entertainment systems like vehicle audio system
  • Such solutions offer a means for the rear seat passengers to interact with one or more systems of the vehicle.
  • Such systems are preferably non-safety critical systems like HVAC, infotainment systems and the like.
  • one of the suitable means would be to use the vehicle glazing as a means for interfacing. This is a preferred solution by the car manufacturers as well.
  • CN209683408 discloses a side window projection display interaction system.
  • This solution provides a side window projection display interaction system.
  • the disclosed system comprises an optical film, a projector, a gesture recognition system and a voice recognition system.
  • the optical film is mounted on the inner surface of automobile glass, the projector is installed on the side, opposite to the automobile side window glass, of the side where the optical film is located.
  • the gesture recognition system is connected with the projector, and the voice recognition system is connected with the projector.
  • this system does not provide for touch-based solutions, either does it provide for dynamic display. A touch-based solution would have been user friendly and less complication.
  • CN209683408 provides a kind of side window projection display interactive systems.
  • This particular system includes optical thin film, projector, gesture recognition system and speech recognition system.
  • the optical thin film is mounted on the inner surface of vehicle glass.
  • the gesture recognition system is connected with the projector, and the speech recognition system is connected with the projector.
  • this solution does not provide for touch-based solutions, either does it provide for dynamic display.
  • US20150077237A1 discloses a solution for a vehicle that includes a user identification subsystem operable to detect a driver and an interactive display subsystem operable to generate output for display on a vehicle window based on detection of the driver.
  • the output associated with a reminder specific to a questionable driving habit of the driver.
  • the projector is fixed on the floor and is meant for dedicated sub-system. Additionally, the placement of the projector is on the floor, which is often not a suitable location.
  • An object of the present invention is to provide a solution for overcoming the drawbacks of the prior art solutions.
  • Another object of the present invention is to provide a solution for the rear passengers to have access to the dashboard.
  • Yet another object of the present invention is to provide a solution for touch based display and control for sidelite without having issues of false touch.
  • Still another object of the present invention is to provide a solution for touch based display and control for sidelite without having issues of projector shadow effect.
  • a dynamic interactive system in a vehicle comprises a glazing having multiple touch sensing regions. It further includes one or more display means, configured to provide an output on the glazing for the user.
  • the system has a multifunctional control unit configured to control said glazing and the one or more display means.
  • the multifunctional control unit further being operably configured to interact with plurality of sub-systems in the vehicle.
  • the multifunctional control unit is configured to activate or deactivate a touch sensing region on the glazing based on a user’s preference for dynamic display of the output from the one or more display means, on said touch sensing region, said the touch sensing region being configured to obtain a touch-based input from the user.
  • the activation or deactivation of the touch sensing region for dynamic display is configured to change along with change in user’s preference, thereby creating a dynamic change of active area for touch sensing and display.
  • the multifunctional control unit is configured to select the touch sensing region on the glazing based on user’s preference, wherein user’s preference is obtained based on a tap or position of the user’s finger or a combination thereof.
  • the system comprising an electrical and/or an optical sensing unit operably configured with the multifunctional control unit for continuous identification of the user’s preference.
  • the one or more display means is either a projector configured to provide projected display output on a selected region of the glazing, or an embedded display unit configured to display output on the selected region of the glazing.
  • the multifunctional control unit is configured to enable the touch functionality on the user’s area of selected region and simultaneously disable the touch functionality on the remaining area of the glazing.
  • the glazing comprises touch sensitive elements arranged in the form of arrays for providing an input interface.
  • the one or more projectors are disposed above and/or below the glazing such that it is positioned proximal to the edges of the glazing or within an angular position of 10 degrees with relative to a plane of the glazing.
  • the display of the output from the projector includes a user interface adapted to provide plurality of options for further input from the user, wherein said plurality of options include means to interact with plurality of sub-systems, in the vehicle.
  • the optical sensing unit comprises one or more camera units, operably configured to determine the position of finger or position of touch of the user.
  • Said one or more camera units are operably configured to the multifunctional control unit.
  • the touch sensitive elements are arranged on the glazing in the form resistive or capacitive arrays formed of silver nanowires.
  • the electrical and/or an optical sensing unit are provided on the edge of the glazing.
  • the multifunctional control unit is configured to adjust the projector, to avoid the shadow on the display on the glazing.
  • the multifunctional control unit is configured to identify the false touch detection.
  • the projector is configured to provide light on the selected the region, wherein said selected region is based on the user’s preference.
  • the sensing unit comprises photo transmitter and receiver combination adaptably disposed at the edge of the glazing and operably configured with the multifunctional control unit for detecting a user’s preference.
  • the multifunctional control unit is configured to prioritize the touch input from user in the event of multiple touch inputs.
  • a method for dynamic touchbased display on a glazing for an interactive system detailed in the above aspect.
  • the method comprises the steps of:
  • the disclosed method for dynamic touch-based display comprises a step for determining false touch further comprising starting, by the multifunctional controller, a timer to track persistence of detection of touch and displaying, by the projector, the output on the user’s area of interest on the glazing, wherein said area of interest on the glazing, if the timer does not elapse.
  • the one or more aspects of the present invention is directed at a dynamic touch area with selective touch area activation having means to continuously monitor the finger position and adjusting projection system to avoid the shadow on the display.
  • the disclosed system uses multi-sensor fusion for touch input. It uses electrical signal based touch input and simultaneously optical signal based touch input to determine the finger position, multi touch, dynamic touch area, and the like.
  • FIG. 1 illustrates a block diagram of the system according to an embodiment of the present invention.
  • FIG. 2 illustrates a schematic diagram of a first configuration of the system on a glazing according to an embodiment of the present invention.
  • FIG. 3 illustrates a configuration of the components within the glazing according to an embodiment of the present invention.
  • FIG. 4 illustrates a second configuration of the system on a glazing according to an embodiment of the present invention.
  • FIG. 5 illustrates a schematic diagram of a system architecture according to an embodiment of the present invention.
  • FIG. 6 illustrates the angular disposal of the projector in the system according to an embodiment of the present invention.
  • the one or more embodiments of the present invention is provided a solution for the rear passengers to have access to the dashboard controls mitigating the earlier challenges.
  • the solution provides a priority based automotive system control which prevents accidental touch-based activation from other glazing. It further provides a non-restrictive touch interface for automotive system control. In the system, the required functions may be controlled from any region across the glazing.
  • FIG. 1 of the present invention discloses a block diagram of the dynamic interactive system (100) in a vehicle.
  • Said system comprises a glazing (101) having multiple touch sensing regions (102). It further includes one or more display means (103, 104) configured to provide an output on the glazing for the user. Additionally, it includes a multifunctional control unit (106) configured to control said glazing (101) and the one or more display means (103, 104).
  • This multifunctional control unit (106) further being operably configured to interact with plurality of subsystems (111, 112) in the vehicle.
  • the sub-systems mentioned herein may include automotive electronic systems such as and not limited to passenger comfort (like HVAC) and entertainment systems. Ideally said sub-systems include non-critical systems of the vehicle.
  • the multifunctional control unit mentioned herein is an electronic control unit that typically include a microcontroller, or microprocessor with memory and other required modules.
  • the multifunctional control unit is a dedicated controller concerned with the functioning of the disclosed system.
  • the system including the multifunctional control unit (106) is configured to activate or deactivate a touch sensing region on the glazing based on a user’s preference for dynamic display of the output from the one or more display means (103, 104) on said touch sensing region.
  • This touch sensing region being configured to obtain a touch-based input from the user.
  • the activation or deactivation of the touch sensing region for dynamic display is configured to change along with change in user’s preference, thereby creating a dynamic change of active area for touch sensing and display.
  • User’s preference may be a simple choice that the user makes in terms of the touch area as per his/her convenience and ease. An instance may be centre of the glazing.
  • the dynamic interactive system (100) with the multifunction control unit (106) for controlling the functioning of said display.
  • the multifunctional control unit (106) is configured to select the touch sensing region on the glazing based on user’s preference. This user’s preference is obtained based on a tap or position of the user’s finger or a combination thereof.
  • the dynamic interactive system (100) comprises an electrical and/or an optical sensing unit (107) operably configured with the multifunctional control unit (106) for continuous identification of the user’s preference.
  • the one or more display means (103, 104) is either a projector configured to provide projected display output on a selected region of the glazing, or an embedded display unit configured to display output on the selected region of the glazing.
  • the multifunctional control unit (106) is configured to enable the touch functionality on the user’s area of selected region and simultaneously disable the touch functionality on the remaining area of the glazing.
  • the glazing (101) comprises touch sensitive elements arranged in the form of arrays for providing an input interface.
  • the disclosed interactive glazing is configured to take input from user’s touch and provide a dynamic projection of dashboard features. This facilitates the rear seated passengers to communicate with the dashboard features without having to request a front passenger or the person behind the steering wheel for control of some sub-systems such as infotainment.
  • the display may have a dynamic prompt such as and not limited to a text-based user interfaces (TUI).
  • TTI text-based user interfaces
  • Such an interface includes touch perceiving elements which can follow a user touch.
  • the user’s preference which is the user’s area of interest on the glazing for the display to pop may be identified by the tap on a prompt.
  • the projection may contain a set of dashboard functions such as and not limited to air conditioning temperature control, media volume control and the like (sub-system).
  • the present invention means for eliminating the appearance of shadow for the dynamic projection.
  • the projectors should be placed accordingly.
  • the display means is an embedded display element itself such as and not limited to light-emitting diodes (LEDs)
  • the shadow effect would not occur.
  • the sensing of finger touch on the glazing may be provided by means of electrical or optical sensors. These sensors may be mounted to employ a glass surface as an integral part of the sensing element.
  • the system is further configured to identify and prioritise the input during multiple touch scenarios within or different glazing or vehicle window.
  • the dynamic interactive system (100) in which the multifunctional control unit (106) is configured to adjust the projector (103, 104) to avoid the shadow on the display on the glazing.
  • the one or more projectors (103, 104) are disposed above and/or below the glazing (101) such that it is positioned proximal to the edges of the glazing (101) or within an angular position of 10 degrees with relative to a plane of the glazing (101). This advantageously assists in addressing the shadow effect issues.
  • the display of the output from the projector includes a user interface adapted to provide plurality of options for further input from the user, wherein said plurality of options include means to interact with plurality of sub-systems (111, 112) in the vehicle.
  • the optical sensing unit (107) comprises one or more camera units (115, 116) operably configured to determine the position of finger or position of touch of the user. Said one or more camera units (115, 116) are operably configured to the multifunctional control unit (106).
  • the touch sensitive elements are arranged on the glazing (101) in the form resistive or capacitive arrays formed of silver nanowires.
  • the electrical and/or an optical sensing unit (107) are provided on the edge of the glazing.
  • the multifunctional control unit (106) is configured to identify the false touch detection.
  • the projector (103, 104) is configured to the projector (103, 104) to provide light on the selected the region. Said selected region is based on the user’s preference.
  • the sensing unit (107) comprises photo transmitter and receiver combination adaptably disposed at the edge of the glazing and operably configured with the multifunctional control unit (106) for detecting a user’s preference.
  • the multifunctional control unit (106) is configured to prioritize the touch input from user in the event of multiple touch inputs.
  • FIG.2 depicts a configuration of the system according to an embodiment of the present invention.
  • the touch sensitive elements are arranged in arrays like common touch input interfaces, and it is configured to work on the capacitive principle.
  • a dynamic movement of active area for touch sensing and display could be advantageously created.
  • the false or accidental touch disablement may be realized by means of active touch signal and a timer unit.
  • sensors may be placed on the glass surface that detects the presence of finger in the form of electrical (capacitive, resistive and the like) as provided in FIG. 3.
  • FIGs. 4 and 5 depicts the configuration of the dynamic system as per the present invention.
  • the touch sensitive elements may be arranged across a ceramic region in the form of capacitive grids. Silver nanowires may be used to generate the grid.
  • the sensors are placed on the glass surface which detects the presence of finger in the form of electrical (capacitive, resistive etc.) or optical signal changes.
  • the projectors or camera unit is positioned close to the glass edges (0-1 Omm from edge) or within an angular position of 10 degrees relative to plane of window as per an implementation of the present invention, as shown in FIG. 6.
  • a system that includes touch sensor.
  • the touch sensor is present on the side window glass or sidelite of the vehicle.
  • the user touch is the input for the multi-functional control unit.
  • the control logic is provided in the control unit is configured to decide the priority between the activation.
  • LIN Local Interconnect Network
  • the other electronic control units may be slave electronic control units also configured to communicate with the Body Control Module (BCM).
  • BCM Body Control Module
  • the touch input may be detected by the sensor (glass mounted sensor, optical sensing etc.).
  • the sensor communicates with the multi-functional control unit.
  • the multi-functional control unit interprets the signal and converts it into a set of instructions. For e.g., temperature setting for HVAC.
  • the electrical signal from touch sensitive layer on glass and optical signal from photodetector, camera-based system may be combined to provide the different functions explained above.
  • a method (200) for dynamic touch-based display on a glazing for an interactive system comprises detecting (S201), by a sensor, a user’s preference for activating touch based display, eliminating (S202), by the multifunctional control unit, cases of false touch detection and identifying (S203), by the multifunctional control unit, a selected touch sensing region for activating touch based display on the glazing.
  • the disclosed system further comprises providing (S204), by the multifunctional control unit, orientation and display control signals to the display means for displaying an output prompt on the selected touch sensing region of the glazing, and displaying (S205), by the projector, the output prompt for obtaining the user’s choice via touch input.
  • the disclosed system still further comprises obtaining (S206), by the touch elements, an input from the user via touch, performing (S207), by the multifunctional control unit, the action based on the obtained input from user and continuously monitoring (S208), by the sensors, the user’s preference for determining the user’s choice of interest for display.
  • a step for determining false touch further comprises the sub-step of starting (S210), by the multifunctional controller, a timer to track persistence of detection of touch and displaying (S211), by the projector, the output on the user’s area of interest on the glazing, wherein said area of interest on the glazing, if the timer does not elapse.
  • the disclosed solution provides a dynamic touch prompt on the interactive glazing which can follow/ trace the user touch.
  • the Activation or deactivation of the touch sensing region is based on user input and simultaneous dynamic display activation.
  • the disclosed multifunctional electronic control unit is configured to provide required controls for other slave ECUs. The decision of the priorities between the side glasses and between the different features are taken by the control unit.
  • the system includes non-restrictive touch interface for automotive system control.
  • the implementation of the disclosed system overcomes a number of challenges firstly dynamic touch area being implemented, customized logic in ECU with multi touch sensing interface unit.
  • the control unit is configured for selective touch area activation.
  • the disclosed multi projector system comprises continuous monitoring of the finger position and adjusting projection system to avoid the shadow on the display.
  • the system includes multi sensor fusion for touch input.
  • the system comprises utilization of electrical signal based touch input and simultaneously optical signal based touch input to determine the finger position, multi touch, dynamic touch area, and the like.
  • the control logic in the multifunctional control unit is configured to check the priority of the input based on the logic coded in it.
  • the input for the activation of the feature is then sent to the respective slave ECU (e.g.: sunroof, infotainment control unit, however not limited to this) through the LIN interface.
  • the respective slave ECU e.g.: sunroof, infotainment control unit, however not limited to this
  • FIG. 1 only two slave ECUs are shown in the architecture for reference. The architecture may be expanded to include more slave ECUs.
  • the feedback upon activation/ deactivation from the slave ECU is sent to the Multifunctional control unit through the LIN Interface.
  • the feedback from the slave ECUs is also sent to the BCM to store the status of the slave ECUs through the LIN interface.
  • the multifunctional control unit also communicates to the BCM via LIN interface for some diagnostic features.
  • the multifunctional ECU is powered through the 12V battery in the vehicle.
  • the disclosed solution may be utilized for the rear passenger side window glasses/glazing for passenger interaction with the dashboard features of the vehicle. It may be used as interactive glass for automotive and buildings.
  • the disclosed control system is priority based automotive system control which prevents accidental touch-based activation from other glazing.
  • the disclosed control system has non-restrictive touch interface for automotive system control which is the required functions that can be controlled from any region across the glass.

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Abstract

Disclosed herein is a dynamic interactive system (100) in a vehicle It comprises a glazing (101) having multiple touch sensing regions (102), one or more display means (103, 104) configured to provide an output on the glazing for the user and a multifunctional control unit (106) configured to control said glazing (101) and the one or more display means (103, 104); said multifunctional control unit (106) further being operably configured to interact with plurality of sub-systems (111, 112) in the vehicle. The multifunctional control unit (106) is configured to activate or deactivate a touch sensing region on the glazing based on a user's preference for dynamic display. The disclosed invention provides a dynamic touch area utilizing electrical signal-based touch input and simultaneously optical signal based touch input to determine the finger position, multi touch, dynamic touch area, and the like.

Description

A DYNAMIC INTERACTIVE SYSTEM IN A VEHICLE AND A METHOD THEREOF
TECHNICAL FIELD
The present disclosure relates to a dynamic interactive system in a vehicle and particularly it relates to a dynamic display system in the glazing of a vehicle.
BACKGROUND
Background description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed disclosure, or that any publication specifically or implicitly referenced is prior art.
Known in the art are regular Head- up displays that find application for a driver to obtain visual information during driving. However, of late, vehicles also include various systems such as and not limited infotainment and navigation systems. These systems are generally provided with a display around which mechanical control elements are arranged to provide a user means for interaction. More often such systems are provided in the dashboard. Alternatively, the display combines at least some of the control elements into a touch panel display. In either case, it is predominantly the users seated in the front area of the vehicle who get access to such interactive systems and the usage of the control thereof.
Glazing refers to any and all the glass or similar material within a structure or the installation of any piece of glass or the similar material within a sash or frame. The glass windows of an automobile are referred to as glazing. Windshield or windscreen, backlite, sidelite, quaterlite, sunroof etc., are regarded as some instances of glazing in a vehicle. Typically, the windshield of a vehicle is laminated glass, while the sidelite, backlite, are tempered glass. Automotive glazing systems facilitates in simplifying the vehicle assembly process. Such modular systems provide adhesive bonding of the glazing to the vehicle and are means for additional features as well, such as being integrated with electronic systems.
Known are automotive electronics or electronic systems used in vehicles, including engine management, ignition, radio, carputers, telematics, in-car entertainment systems, and others. Ignition, engine and transmission electronics are also found in trucks, motorcycles, off-road vehicles. Such automotive electronic systems include systems for driver assistance (like lane assistance and cruise control), passenger comfort (like Heating, ventilation, and air conditioning, HVAC) and entertainment systems (like vehicle audio system).
Of late attempts are being made to utilize the passenger spaces within a vehicle. Such solutions offer a means for the rear seat passengers to interact with one or more systems of the vehicle. Such systems are preferably non-safety critical systems like HVAC, infotainment systems and the like. In such cases, one of the suitable means would be to use the vehicle glazing as a means for interfacing. This is a preferred solution by the car manufacturers as well.
Reference is made to CN209683408 that discloses a side window projection display interaction system. This solution provides a side window projection display interaction system. The disclosed system comprises an optical film, a projector, a gesture recognition system and a voice recognition system. The optical film is mounted on the inner surface of automobile glass, the projector is installed on the side, opposite to the automobile side window glass, of the side where the optical film is located. The gesture recognition system is connected with the projector, and the voice recognition system is connected with the projector. However, this system does not provide for touch-based solutions, either does it provide for dynamic display. A touch-based solution would have been user friendly and less complication.
Another reference is made to CN209683408 that provides a kind of side window projection display interactive systems. This particular system includes optical thin film, projector, gesture recognition system and speech recognition system. The optical thin film is mounted on the inner surface of vehicle glass. The gesture recognition system is connected with the projector, and the speech recognition system is connected with the projector. However, just like previous case, even this solution does not provide for touch-based solutions, either does it provide for dynamic display.
Again, yet another reference is made to US20150077237A1 discloses a solution for a vehicle that includes a user identification subsystem operable to detect a driver and an interactive display subsystem operable to generate output for display on a vehicle window based on detection of the driver. The output associated with a reminder specific to a questionable driving habit of the driver. In this solution, the projector is fixed on the floor and is meant for dedicated sub-system. Additionally, the placement of the projector is on the floor, which is often not a suitable location.
From the prior art solutions, it has been observed that it is desirable to have an improved system for the rear passengers to have access to the dashboard controls of a vehicle. There are several issues with the already known solutions, such as the display not being dynamic and thereby being user friendly, suitable positioning of the projectors and the like. In other words, there is a dire requirement of an improved solution to utilise the glazing (especially passenger side window glasses) for passenger interaction with the dashboard features of a vehicle.
SUMMARY OF THE DISCLOSURE An object of the present invention is to provide a solution for overcoming the drawbacks of the prior art solutions.
Another object of the present invention is to provide a solution for the rear passengers to have access to the dashboard.
Yet another object of the present invention is to provide a solution for touch based display and control for sidelite without having issues of false touch.
Still another object of the present invention is to provide a solution for touch based display and control for sidelite without having issues of projector shadow effect.
These and other objects of the invention are achieved by the following aspects of the invention. The following disclosure presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. This presents some concept of the invention in a simplified form to a more detailed description of the invention presented later. It is a comprehensive summary of the disclosure and it is not an extensive overview of the present invention. The intend of this summary is to provide a fundamental understanding of some of the aspects of the present invention.
In an aspect of the present invention is provided a dynamic interactive system in a vehicle. The disclosed system comprises a glazing having multiple touch sensing regions. It further includes one or more display means, configured to provide an output on the glazing for the user. The system has a multifunctional control unit configured to control said glazing and the one or more display means. The multifunctional control unit further being operably configured to interact with plurality of sub-systems in the vehicle. The multifunctional control unit is configured to activate or deactivate a touch sensing region on the glazing based on a user’s preference for dynamic display of the output from the one or more display means, on said touch sensing region, said the touch sensing region being configured to obtain a touch-based input from the user. The activation or deactivation of the touch sensing region for dynamic display is configured to change along with change in user’s preference, thereby creating a dynamic change of active area for touch sensing and display. The multifunctional control unit is configured to select the touch sensing region on the glazing based on user’s preference, wherein user’s preference is obtained based on a tap or position of the user’s finger or a combination thereof. The system comprising an electrical and/or an optical sensing unit operably configured with the multifunctional control unit for continuous identification of the user’s preference. The one or more display means, is either a projector configured to provide projected display output on a selected region of the glazing, or an embedded display unit configured to display output on the selected region of the glazing. The multifunctional control unit is configured to enable the touch functionality on the user’s area of selected region and simultaneously disable the touch functionality on the remaining area of the glazing. The glazing comprises touch sensitive elements arranged in the form of arrays for providing an input interface. The one or more projectors are disposed above and/or below the glazing such that it is positioned proximal to the edges of the glazing or within an angular position of 10 degrees with relative to a plane of the glazing. The display of the output from the projector includes a user interface adapted to provide plurality of options for further input from the user, wherein said plurality of options include means to interact with plurality of sub-systems, in the vehicle. The optical sensing unit comprises one or more camera units, operably configured to determine the position of finger or position of touch of the user. Said one or more camera units, are operably configured to the multifunctional control unit. The touch sensitive elements are arranged on the glazing in the form resistive or capacitive arrays formed of silver nanowires. The electrical and/or an optical sensing unit are provided on the edge of the glazing. The multifunctional control unit is configured to adjust the projector, to avoid the shadow on the display on the glazing. The multifunctional control unit is configured to identify the false touch detection. The projector is configured to provide light on the selected the region, wherein said selected region is based on the user’s preference. The sensing unit comprises photo transmitter and receiver combination adaptably disposed at the edge of the glazing and operably configured with the multifunctional control unit for detecting a user’s preference. The multifunctional control unit is configured to prioritize the touch input from user in the event of multiple touch inputs.
In another aspect of the present invention is provided a method for dynamic touchbased display on a glazing for an interactive system detailed in the above aspect. The method comprises the steps of:
1. detecting, by a sensor, a user’ s preference for activating touch based display
2. eliminating, by the multifunctional control unit, cases of false touch detection\
3. identifying, by the multifunctional control unit, a selected touch sensing region for activating touch based display on the glazing
4. providing, by the multifunctional control unit, orientation and display control signals to the display means for displaying an output prompt on the selected touch sensing region of the glazing;
5. displaying, by the projector, the output prompt for obtaining the user’s choice via touch input;
6. obtaining, by the touch elements, an input from the user via touch
7. performing, by the multifunctional control unit, the action based on the obtained input from user and
8. continuously monitoring S, by the sensors, the user’s preference for determining the user’s choice of interest for display.
The disclosed method for dynamic touch-based display comprises a step for determining false touch further comprising starting, by the multifunctional controller, a timer to track persistence of detection of touch and displaying, by the projector, the output on the user’s area of interest on the glazing, wherein said area of interest on the glazing, if the timer does not elapse.
The one or more aspects of the present invention is directed at a dynamic touch area with selective touch area activation having means to continuously monitor the finger position and adjusting projection system to avoid the shadow on the display. The disclosed system uses multi-sensor fusion for touch input. It uses electrical signal based touch input and simultaneously optical signal based touch input to determine the finger position, multi touch, dynamic touch area, and the like.
The significant features of the present invention and the advantages of the same will be apparent to a person skilled in the art from the detailed description that follows in conjunction with the annexed drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The following briefly describes the accompanying drawings, illustrating the technical solution of the embodiments of the present invention or the prior art, for assisting the understanding of a person skilled in the art to comprehend the invention. It would be apparent that the accompanying drawings in the following description merely show some embodiments of the present invention, and persons skilled in the art can derive other drawings from the accompanying drawings without deviating from the scope of the disclosure.
FIG. 1 illustrates a block diagram of the system according to an embodiment of the present invention.
FIG. 2 illustrates a schematic diagram of a first configuration of the system on a glazing according to an embodiment of the present invention. FIG. 3 illustrates a configuration of the components within the glazing according to an embodiment of the present invention.
FIG. 4 illustrates a second configuration of the system on a glazing according to an embodiment of the present invention.
FIG. 5 illustrates a schematic diagram of a system architecture according to an embodiment of the present invention.
FIG. 6 illustrates the angular disposal of the projector in the system according to an embodiment of the present invention.
Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of embodiments of the disclosure.
DETAILED DESCRIPTION
The present disclosure is now discussed in more detail referring to the drawings that accompany the present application. It would be appreciated by a skilled person that this description to assist the understanding of the invention, but these are to be regarded as merely exemplary.
The terms and words used in the following description are not limited to the bibliographical meanings and the same are used to enable a clear and consistent understanding of the invention. Accordingly, the terms/phrases are to be read in the context of the disclosure and not in isolation. Additionally, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
The one or more embodiments of the present invention is provided a solution for the rear passengers to have access to the dashboard controls mitigating the earlier challenges. The solution provides a priority based automotive system control which prevents accidental touch-based activation from other glazing. It further provides a non-restrictive touch interface for automotive system control. In the system, the required functions may be controlled from any region across the glazing.
Reference is made to FIG. 1 of the present invention that discloses a block diagram of the dynamic interactive system (100) in a vehicle. Said system comprises a glazing (101) having multiple touch sensing regions (102). It further includes one or more display means (103, 104) configured to provide an output on the glazing for the user. Additionally, it includes a multifunctional control unit (106) configured to control said glazing (101) and the one or more display means (103, 104). This multifunctional control unit (106) further being operably configured to interact with plurality of subsystems (111, 112) in the vehicle. The sub-systems mentioned herein may include automotive electronic systems such as and not limited to passenger comfort (like HVAC) and entertainment systems. Ideally said sub-systems include non-critical systems of the vehicle. The multifunctional control unit mentioned herein is an electronic control unit that typically include a microcontroller, or microprocessor with memory and other required modules. The multifunctional control unit is a dedicated controller concerned with the functioning of the disclosed system.
In this embodiment of the present invention is provided the system including the multifunctional control unit (106) is configured to activate or deactivate a touch sensing region on the glazing based on a user’s preference for dynamic display of the output from the one or more display means (103, 104) on said touch sensing region. This touch sensing region being configured to obtain a touch-based input from the user. The activation or deactivation of the touch sensing region for dynamic display is configured to change along with change in user’s preference, thereby creating a dynamic change of active area for touch sensing and display. User’s preference may be a simple choice that the user makes in terms of the touch area as per his/her convenience and ease. An instance may be centre of the glazing.
In an embodiment of the present invention is provided the dynamic interactive system (100) with the multifunction control unit (106) for controlling the functioning of said display. The multifunctional control unit (106) is configured to select the touch sensing region on the glazing based on user’s preference. This user’s preference is obtained based on a tap or position of the user’s finger or a combination thereof. The dynamic interactive system (100) comprises an electrical and/or an optical sensing unit (107) operably configured with the multifunctional control unit (106) for continuous identification of the user’s preference. The one or more display means (103, 104) is either a projector configured to provide projected display output on a selected region of the glazing, or an embedded display unit configured to display output on the selected region of the glazing. The multifunctional control unit (106) is configured to enable the touch functionality on the user’s area of selected region and simultaneously disable the touch functionality on the remaining area of the glazing. The glazing (101) comprises touch sensitive elements arranged in the form of arrays for providing an input interface.
In an embodiment of the present invention, the disclosed interactive glazing is configured to take input from user’s touch and provide a dynamic projection of dashboard features. This facilitates the rear seated passengers to communicate with the dashboard features without having to request a front passenger or the person behind the steering wheel for control of some sub-systems such as infotainment. The display may have a dynamic prompt such as and not limited to a text-based user interfaces (TUI). Such an interface includes touch perceiving elements which can follow a user touch. The user’s preference which is the user’s area of interest on the glazing for the display to pop may be identified by the tap on a prompt. Based on the touch input on the prompt, there may be activation/deactivation on the electrode grid utilization of the touch control or touch perceiving elements followed by a dynamic projection. The projection may contain a set of dashboard functions such as and not limited to air conditioning temperature control, media volume control and the like (sub-system). Once the user area of interest is identified by the touch input on the prompt, the other areas would be restricted for the touch control.
In an embodiment of the present invention is provided means for eliminating the appearance of shadow for the dynamic projection. For this purpose, the projectors should be placed accordingly. In case if the display means is an embedded display element itself such as and not limited to light-emitting diodes (LEDs), the shadow effect would not occur. The sensing of finger touch on the glazing may be provided by means of electrical or optical sensors. These sensors may be mounted to employ a glass surface as an integral part of the sensing element. The system is further configured to identify and prioritise the input during multiple touch scenarios within or different glazing or vehicle window.
In an embodiment of the present invention is provided the dynamic interactive system (100) in which the multifunctional control unit (106) is configured to adjust the projector (103, 104) to avoid the shadow on the display on the glazing. In an implementation, the one or more projectors (103, 104) are disposed above and/or below the glazing (101) such that it is positioned proximal to the edges of the glazing (101) or within an angular position of 10 degrees with relative to a plane of the glazing (101). This advantageously assists in addressing the shadow effect issues. The display of the output from the projector includes a user interface adapted to provide plurality of options for further input from the user, wherein said plurality of options include means to interact with plurality of sub-systems (111, 112) in the vehicle. The optical sensing unit (107) comprises one or more camera units (115, 116) operably configured to determine the position of finger or position of touch of the user. Said one or more camera units (115, 116) are operably configured to the multifunctional control unit (106). In a specific case implementation, the touch sensitive elements are arranged on the glazing (101) in the form resistive or capacitive arrays formed of silver nanowires. The electrical and/or an optical sensing unit (107) are provided on the edge of the glazing. The multifunctional control unit (106) is configured to identify the false touch detection. The projector (103, 104) is configured to the projector (103, 104) to provide light on the selected the region. Said selected region is based on the user’s preference. The sensing unit (107) comprises photo transmitter and receiver combination adaptably disposed at the edge of the glazing and operably configured with the multifunctional control unit (106) for detecting a user’s preference. The multifunctional control unit (106) is configured to prioritize the touch input from user in the event of multiple touch inputs.
Reference is made to FIG.2 that depicts a configuration of the system according to an embodiment of the present invention. The touch sensitive elements are arranged in arrays like common touch input interfaces, and it is configured to work on the capacitive principle. By means of selective activation of sensor grid area through touch signal interfacing unit and the electronic control unit, a dynamic movement of active area for touch sensing and display could be advantageously created. The false or accidental touch disablement may be realized by means of active touch signal and a timer unit. In an implementation, sensors may be placed on the glass surface that detects the presence of finger in the form of electrical (capacitive, resistive and the like) as provided in FIG. 3.
Reference is made to FIGs. 4 and 5 that depicts the configuration of the dynamic system as per the present invention. The touch sensitive elements may be arranged across a ceramic region in the form of capacitive grids. Silver nanowires may be used to generate the grid. The use of camera units (115, 116) to determine the position of finger or touch of a user. The sensors are placed on the glass surface which detects the presence of finger in the form of electrical (capacitive, resistive etc.) or optical signal changes. The projectors or camera unit is positioned close to the glass edges (0-1 Omm from edge) or within an angular position of 10 degrees relative to plane of window as per an implementation of the present invention, as shown in FIG. 6.
In an implementation of present invention is provided a system that includes touch sensor. The touch sensor is present on the side window glass or sidelite of the vehicle. The user touch is the input for the multi-functional control unit. The control logic is provided in the control unit is configured to decide the priority between the activation. LIN (Local Interconnect Network) communication is used between this multifunctional control unit and the electronic control units of other sub-systems. In an implementation the other electronic control units may be slave electronic control units also configured to communicate with the Body Control Module (BCM). In an implementation, the touch input may be detected by the sensor (glass mounted sensor, optical sensing etc.). The sensor communicates with the multi-functional control unit. The multi-functional control unit interprets the signal and converts it into a set of instructions. For e.g., temperature setting for HVAC. In an example embodiment, the electrical signal from touch sensitive layer on glass and optical signal from photodetector, camera-based system may be combined to provide the different functions explained above.
In an embodiment of the present invention is provided a method (200) for dynamic touch-based display on a glazing for an interactive system. Said method comprises detecting (S201), by a sensor, a user’s preference for activating touch based display, eliminating (S202), by the multifunctional control unit, cases of false touch detection and identifying (S203), by the multifunctional control unit, a selected touch sensing region for activating touch based display on the glazing. The disclosed system further comprises providing (S204), by the multifunctional control unit, orientation and display control signals to the display means for displaying an output prompt on the selected touch sensing region of the glazing, and displaying (S205), by the projector, the output prompt for obtaining the user’s choice via touch input. The disclosed system still further comprises obtaining (S206), by the touch elements, an input from the user via touch, performing (S207), by the multifunctional control unit, the action based on the obtained input from user and continuously monitoring (S208), by the sensors, the user’s preference for determining the user’s choice of interest for display.
In this embodiment of the present invention, a step for determining false touch further comprises the sub-step of starting (S210), by the multifunctional controller, a timer to track persistence of detection of touch and displaying (S211), by the projector, the output on the user’s area of interest on the glazing, wherein said area of interest on the glazing, if the timer does not elapse.
The disclosed solution provides a dynamic touch prompt on the interactive glazing which can follow/ trace the user touch. The Activation or deactivation of the touch sensing region (capacitive or resistive grid) is based on user input and simultaneous dynamic display activation. The disclosed multifunctional electronic control unit is configured to provide required controls for other slave ECUs. The decision of the priorities between the side glasses and between the different features are taken by the control unit. The system includes non-restrictive touch interface for automotive system control. The implementation of the disclosed system overcomes a number of challenges firstly dynamic touch area being implemented, customized logic in ECU with multi touch sensing interface unit. The control unit is configured for selective touch area activation. The customized algorithm in control unit with multi touch sensing interface unit. The disclosed multi projector system comprises continuous monitoring of the finger position and adjusting projection system to avoid the shadow on the display. The system includes multi sensor fusion for touch input. The system comprises utilization of electrical signal based touch input and simultaneously optical signal based touch input to determine the finger position, multi touch, dynamic touch area, and the like.
Example Embodiment: In an implementation, the control logic in the multifunctional control unit is configured to check the priority of the input based on the logic coded in it. The input for the activation of the feature is then sent to the respective slave ECU (e.g.: sunroof, infotainment control unit, however not limited to this) through the LIN interface. In FIG. 1, only two slave ECUs are shown in the architecture for reference. The architecture may be expanded to include more slave ECUs. The feedback upon activation/ deactivation from the slave ECU is sent to the Multifunctional control unit through the LIN Interface. The feedback from the slave ECUs is also sent to the BCM to store the status of the slave ECUs through the LIN interface. The multifunctional control unit also communicates to the BCM via LIN interface for some diagnostic features. The multifunctional ECU is powered through the 12V battery in the vehicle.
Industrial Application: The disclosed solution may be utilized for the rear passenger side window glasses/glazing for passenger interaction with the dashboard features of the vehicle. It may be used as interactive glass for automotive and buildings.
Passenger spaces within a vehicle have become a means to interact with vehicle systems like HVAC, infotainment systems (radio, TV etc.). In many of these cases, one of the available spaces for such interfacing are vehicle glazing. This invention proposes a method and means to utilise the glazing (especially passenger side window glasses) for passenger interaction with the dashboard features of the car.
Some advantages of the present invention are enlisted in the following:
• The rear passengers have access to the dashboard controls which was a challenge earlier.
• The disclosed control system is priority based automotive system control which prevents accidental touch-based activation from other glazing. • The disclosed control system has non-restrictive touch interface for automotive system control which is the required functions that can be controlled from any region across the glass.
Many alterations and modifications of the present invention will no doubt become apparent to a person skilled in the art after having read the foregoing description. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. It is to be understood that the description above contains many specifications, these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the personally preferred embodiments of this invention. Thus, the scope of the invention should be determined by the appended claims and their legal equivalents rather than by the examples given. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.
List of reference numerals appearing in the accompanying drawings and the corresponding features: 101: glazing 102: touch region/touch element 103, 104: display means 105: Battery 106: multifunctional control unit 200: vehicle electronic control unit 111: first functional unit 112: second function unit

Claims

1. A dynamic interactive system (100) in a vehicle, comprising: a glazing (101) having multiple touch sensing regions (102); one or more display means (103, 104) configured to provide an output on the glazing for the user; a multifunctional control unit (106) configured to control said glazing (101) and the one or more display means (103, 104); said multifunctional control unit (106) further being operably configured to interact with plurality of sub-systems (111, 112) in the vehicle; wherein the multifunctional control unit (106) is configured to activate or deactivate a touch sensing region on the glazing based on a user’s preference for dynamic display of the output from the one or more display means (103, 104) on said touch sensing region, said the touch sensing region being configured to obtain a touch-based input from the user; and the activation or deactivation of the touch sensing region for dynamic display is configured to change along with change in user’s preference, thereby creating a dynamic change of active area for touch sensing and display.
2. The dynamic interactive system (100) as claimed in claim 1, wherein the multifunctional control unit (106) is configured to select the touch sensing region on the glazing based on user’s preference, wherein user’s preference is obtained based on a tap or position of the user’s finger or a combination thereof.
3. The dynamic interactive system (100) as claimed in claim 1 or claim 2, comprising an electrical and/or an optical sensing unit (107) operably configured with the multifunctional control unit (106) for continuous identification of the user’s preference.
4. The dynamic interactive system (100) as claimed in claim 1, wherein the one or more display means (103, 104) is either a projector configured to provide projected display output on a selected region of the glazing, or an embedded display unit configured to display output on the selected region of the glazing.
5. The dynamic interactive system (100) as claimed in claim 1, wherein the multifunctional control unit (106) is configured to enable the touch functionality on the user’s area of selected region and simultaneously disable the touch functionality on the remaining area of the glazing.
6. The dynamic interactive system (100) as claimed in claim 1, wherein the glazing (101) comprises touch sensitive elements arranged in the form of arrays for providing an input interface.
7. The dynamic interactive system (100) as claimed in claim 1 or claim 4, wherein the one or more projectors (103, 104) are disposed above and/or below the glazing (101) such that it is positioned proximal to the edges of the glazing (101) or within an angular position of 10 degrees with relative to a plane of the glazing (101).
8. The dynamic interactive system as claimed in claim 1, wherein the display of the output from the projector includes a user interface adapted to provide plurality of options for further input from the user, wherein said plurality of options include means to interact with plurality of sub-systems (111, 112) in the vehicle.
9. The dynamic interactive system (100) as claimed in claim 1, wherein the optical sensing unit (107) comprises one or more camera units (115, 116) operably configured to determine the position of finger or position of touch of the user; wherein said one or more camera units (115, 116) are operably configured to the multifunctional control unit (106).
10. The dynamic interactive system (100) as claimed in claim 1, wherein the touch sensitive elements are arranged on the glazing (101) in the form resistive or capacitive arrays formed of silver nano wires.
11. The dynamic interactive system (100) as claimed in claim 1, wherein the electrical and/or an optical sensing unit (107) are provided on the edge of the glazing.
12. The dynamic interactive system (100) as claimed in claim 1, wherein the multifunctional control unit (106) is configured to adjust the projector (103, 104) to avoid the shadow on the display on the glazing.
13. The dynamic interactive system (100) as claimed in claim 1, wherein the multifunctional control unit (106) is configured to identify the false touch detection.
14. The dynamic interactive system (100) as claimed in claim 1, wherein the projector (103, 104) is configured to the projector (103, 104) to provide light on the selected the region, wherein said selected region is based on the user’s preference.
15. The dynamic interactive system (100) as claimed in claim 1, wherein the sensing unit (107) comprises photo transmitter and receiver combination adaptably disposed at the edge of the glazing and operably configured with the multifunctional control unit (106) for detecting a user’s preference.
16. The dynamic interactive system (100) as claimed in claim 1, wherein the multifunctional control unit (106) is configured to prioritize the touch input from user in the event of multiple touch inputs.
17. A method (200) for dynamic touch-based display on a glazing for an interactive system as claimed in any one of the claims 1-16, wherein said method comprises: detecting (S201), by a sensor, a user’s preference for activating touch based display; eliminating (S202), by the multifunctional control unit, cases of false touch detection; identifying (S203), by the multifunctional control unit, a selected touch sensing region for activating touch based display on the glazing; providing (S204), by the multifunctional control unit, orientation and display control signals to the display means for displaying an output prompt on the selected touch sensing region of the glazing; displaying (S205), by the projector, the output prompt for obtaining the user’s choice via touch input; obtaining (S206), by the touch elements, an input from the user via touch; performing (S207), by the multifunctional control unit, the action based on the obtained input from user; and continuously monitoring (S208), by the sensors, the user’s preference for determining the user’s choice of interest for display.
18. The method (200) for dynamic touch-based display as claimed in claim 17, further comprising: a step for determining false touch further comprising: starting (S210), by the multifunctional controller, a timer to track persistence of detection of touch; and displaying (S211), by the projector, the output on the user’s area of interest on the glazing, wherein said area of interest on the glazing, if the timer does not elapse.
PCT/IN2025/050641 2024-04-23 2025-04-22 A dynamic interactive system in a vehicle and a method thereof Pending WO2025224752A1 (en)

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Citations (3)

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EP3908865A1 (en) * 2019-01-07 2021-11-17 Saint-Gobain Glass France Vehicle glazing and display system
US20220185110A1 (en) * 2019-04-04 2022-06-16 Saint-Gobain Glass France An interactive system for a vehicle
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