FR2978942A1 - Display device for e.g. displaying information in vehicle, has display screen arranged in/on rotating unit, where display screen is arranged to perform display in predetermined direction regardless of angle of rotation of rotating unit - Google Patents

Abstract

The device (300) has a tactile display screen (104) e.g. LCD screen, that is arranged in/on a rotating unit i.e. steering wheel (106), of a vehicle e.g. car. The display screen is arranged to perform a display in predetermined direction (114) regardless of angle of rotation of the rotating unit. A sensor (108) measures swing angle of the rotating unit. An adjustment module (110) adjusts display angle on a level of the display screen as a function of the swing angle such that the display screen provides display in predetermined direction. An independent claim is also included for a display method.

Description

-1- "Method and display device for a vehicle, vehicle element provided with such a device and vehicle provided with such an element"

The present invention relates to a method and a display device for an element of a vehicle. It also relates to a vehicle element provided with such a display device.

The field of the invention is the field of display screens and in particular display screens for vehicles intended to display, in the vehicle, information relating to the vehicle as well as to the environment of the vehicle or any other type of information.

STATE OF THE ART There are currently vehicles with one or more display screens. More and more vehicles have one or more display screens. These screens are intended to display information in view, on the one hand to inform the driver on the vehicle situation and spatio-temporal conditions and on the other hand to guide the driver for better control of his vehicle so as to limit the risk of accidents and increase driving comfort. The display screens are positioned either at the dashboard behind the steering wheel, or in a central area of the front part of the vehicle, also called the center console. In some vehicles, a display screen is disposed at the steering wheel of the vehicle. Such a screen makes it possible to inform the user with information relating to the vehicle and its environment, such as, for example, the display screen described in document DE 10 2007 029 322 Al.

However, currently known display screens do not allow easy reading of the information displayed in all configurations. Indeed, these screens are not suitable for configurations in which the steering wheel is rotated to guide the vehicle in this or that direction, and the user is sometimes made to perform 2978942 -2- movements impractical to learn about the information displayed.

In addition, the permanent display at the dashboard of certain non-essential information, with regard to the state of the vehicle and / or its environment, may be a source of distraction or inconvenience to the driver: standard vehicles it has been identified more than 180 types of sound and light messages. Indeed, in a situation where the driver has to focus on the relevant information, he finds himself looking for it among all the information displayed.

An object of the present invention is to overcome the aforementioned drawbacks. Another object of the invention is to provide a display device 15 for a more ergonomic vehicle to use. Another object of the invention is to provide a vehicle display device facilitating the reading of information and the selection of a function regardless of the configuration. Another object of the invention is to provide a vehicle display device 20 for faster access to the information and the selection button displayed. Finally, another object of the invention is to provide a vehicle display device allowing the reading of information and the selection of a function with less risk of accidents and more comfort of driving than the screens. the state of the art.

Presentation of the invention

The invention proposes to achieve at least one of the aforementioned objects by a vehicle display device comprising at least one display screen intended to be disposed in / on a rotary element of said vehicle, said steering wheel, characterized in that said display screen is arranged to display in a predetermined direction regardless of the rotation angle of said rotary member. In the present application, the reference system in which the coordinates, positions and angles are expressed is a reference frame that is fixed with respect to the rotating element of the vehicle, and more particularly a reference frame attached to the user.

Thus, the device according to the invention makes it possible to produce an information display, and possibly of one or more selection buttons, always in the same direction regardless of the angle of rotation of the rotary element on which the display screen is arranged. The device according to the invention allows the driver to access the information directly, without having to put himself in an uncomfortable position or without having to turn his head or without having to look for the information displayed while driving. Moreover, the information, and possibly the buttons / selection zones, always being displayed in the same direction, the driver accesses it more quickly and thus runs less risk of accidents, since his eyes are aligned with the direction of predetermined display at any time. In the present application, the term "data to be displayed" or "image to be displayed" means an image constituting information to be displayed for information only or a data item or an image constituting a button or an area of selection allowing a user to make a selection for triggering a function or command.

We will now describe optional features of the device according to the invention, which can be combined with each other individually. In a preferred embodiment, the device according to the invention may comprise: at least one sensor means for measuring an angle of rotation of said rotary member with respect to a predetermined predetermined direction relative to the rotary member and at least one adjustment means arranged to adjust a display angle at said display screen according to said rotation angle so that said display screen performs a display in the predetermined direction .

The sensor means for measuring the angle may be an angle sensor 10 of inclinometer, tiltmeter, goniometer and / or interferometer type.

Advantageously, the adjustment means can be arranged to: - compare the angle of rotation measured at the angle of the predetermined direction, and - correct the display angle at the display screen according to of said comparison. For example, the adjustment means may add or subtract the angle difference between the measured rotation angle and the predetermined direction to the display angle on the display screen for the display in progress or for the next image / data to be displayed.

Advantageously, the sensor means and the adjustment means can be arranged to operate at a frequency defined by the inverse of the minimum time in which the steering wheel can rotate by a predetermined threshold rotation angle. This threshold rotation angle is previously defined, and may be adjustable by the user. In a particular embodiment, the threshold rotation angle is between 0.5 degrees and 1.5 degrees and particularly is equal to 1 30 degrees. In addition, the minimum rotation time corresponding to these threshold rotation angle values is between 1.4 milliseconds and 4.2 milliseconds, and in particular equal to 2.8 milliseconds. The operating frequency of the sensor means and the adjustment means is then between 714 Hertz and 238 Hertz, and in particular 357 Hertz.

In a particular embodiment, the adjustment means may also be arranged to operate at a frequency greater than or equal to the display frequency. In the case where the display frequency is less than or equal to the operating frequency of the sensor means and the adjustment means, either the most recent data / image is displayed when the display is refreshed. or the operating frequency of the sensor means and the adjustment means is made less than or equal to the display frequency.

The adjustment means may be arranged to operate whenever the measured rotation angle varies by a predetermined amount with respect to the previously measured angle of rotation or with respect to the angle corresponding to the predetermined direction.

According to a particular embodiment, the adjustment means can also be arranged to operate at a frequency based on the visual perception of the conductor, and therefore at a frequency around 30 Hz, for example 25 Hz or greater than 25 Hz.

According to a particular embodiment, the adjustment means can be arranged to operate each time a new display is made, at the same time or in real time just before the new display.

In a preferred version, the display screen may be symmetrical of revolution, for example circular in shape.

The display screen may be an LCD or OLED screen for example. The display screen can advantageously be tactile. When the display screen is touch-sensitive, the device according to the invention may furthermore comprise means for detecting the so-called preceding position of a tactile selection, or the so-called current position of the hand. and / or a user's finger on the rotating member. In this case, the adjustment means may further be arranged to adjust the position of an image / data to be displayed, for example a touch selection button, so that said image / data is displayed at a position, said next, being close to / around said previous position or said current position. The device according to the invention thus allows a dynamic display of the selection buttons on the touch screen, changing the position of the selection buttons according to the position of the hand of a user. Thus, the device according to the invention makes it possible to display the selection buttons in a manner that is directly accessible to the driver, close to the driver's hand or finger. Thus, the driver, desiring to touch-select a control, finds the selection button directly near his finger or hand and does not have to move his hand or finger to fetch a remote selection button. The device according to the invention is therefore more ergonomic for the driver and allows a touch selection faster and less risky for the driver than the display devices of the state of the art. According to a preferred embodiment, the next position can be adjusted to the current position, so that the data to be displayed is displayed by the user's hand. Thus, regardless of the change of position of the user's hand on the steering wheel after the touch selection, the displayed data follows the position of the hand. According to one embodiment, the next position can be adjusted to the previous position, so that the data to be displayed is displayed at the same position regardless of the movements of the steering wheel. Thus, regardless of the change of position of the user's hand on the steering wheel after the touch selection, the displayed data remains in the same position.

According to one embodiment, the position of the data to be displayed may not be adjusted, so as to let it follow the movements of the steering wheel. Thus, the displayed data remains equally accessible regardless of the movements of the steering wheel if the user has not moved his hand on the steering wheel after the touch selection. This mode is advantageous in the absence of means for detecting the position of the hand and / or the finger after the touch selection. Of course, whatever the embodiment, the invention provides the user with the ability to always display the data / command expected under his finger.

Furthermore, the device according to the invention may comprise a module arranged to adjust and / or select contextually a data / image to be displayed as a function of: at least one geolocation data, at least one datum, referred to as spatio-temporal, relating to an external / internal condition in which the vehicle evolves, and / or - at least one datum, said operating, relating to an operating state of said vehicle.

The module performing such adjustment and / or selection may be the adjustment means or other means such as a data / image generation module to be displayed.

The device according to the invention may also be arranged to receive at least one geographical location data item from a GPS location device, and to adjust or select a data item to be displayed in according to said location data. For example, when passing through a country using different measurement units, such as for example the passage to Great Britain 5 from France, the device according to the invention makes it possible to display the speed in miles per hour and not in kilometers per hour. Thus, the device according to the invention allows the driver a better control of his vehicle with less effort.

Advantageously, the location-dependent adjustment may include data conversion from a first measurement system to another measurement system.

The device according to the invention may furthermore be arranged to receive at least one piece of data, called spatio-temporal data, relating to an external / internal condition on the part of at least one sensor, and to adjust or choose a given piece of data. to display according to said spatio-temporal data. For example, the device according to the invention can be arranged to receive from a rain sensor or a visibility sensor, a data 20 relating to the presence of rain or data relating to lighting. According to the received data, the device according to the invention can determine the display on the display screen of a contextual menu, displaying a wiper control button and / or a control button of the vehicle lighting. Thus, the device according to the invention makes it possible to modify, in a contextual manner, the information displayed and / or the selection buttons displayed as a function of the spatio-temporal conditions in which the vehicle is moving.

Advantageously, the device according to the invention may furthermore be arranged to receive at least one piece of data, referred to as operating data, relating to an operating state of the vehicle, and to adjust or choose a data item to be displayed as a function of said data item. Operating. Thus, the device according to the invention can receive from one or more sensors malfunction data of the vehicle, or data indicating a danger and display, according to the received data, a button of selection of a dedicated function, such as for example the ignition 5 of the hazard warning lights. Thus, in a configuration in which it is necessary to act quickly, the device according to the invention makes it possible to bring closer to the driver directly selectable way, the appropriate selection button allowing the user to react quickly. All the information measured by one or more sensors can be obtained either directly from the sensors or via the vehicle computer if the latter is equipped with a computer. According to another aspect of the invention there is provided a rotating element of a vehicle comprising a housing for accommodating a screen of a device according to the invention.

According to yet another aspect of the invention there is provided an assembly comprising: - a rotating element for a vehicle, and - a device according to the invention.

The display screen may advantageously be disposed in / on the rotating member centrally.

The display screen may be arranged in the thickness of the rotatable member so that the display surface, and optionally the screen selection surface, is flush with the surface of the element. rotating towards the driver. Advantageously, the display screen is symmetrical with revolution, for example in the form of a circle, and the axis of revolution is on the axis of rotation of the rotary element.

The rotary member may be a vehicle steering wheel intended to steer the vehicle. The rotating element may further be a handle, a joystick, a half-steering wheel. According to a general definition, the rotary element is an element comprising an axis of rotation, a central zone and at least one peripheral gripping zone for the user in order to manipulate the rotary element.

According to yet another aspect of the invention there is provided a vehicle comprising a display device or an assembly of the invention. Such a vehicle can be a car, an airplane, a helicopter, a boat, a train and more generally any vehicle equipped with a rotating element used to steer the vehicle.

According to yet another aspect of the invention there is provided a vehicle display method comprising at least one display screen intended to be disposed in / on a rotating element of said vehicle, characterized in that it comprises the steps following: - measuring an angle of rotation of said rotary member with respect to a predetermined and fixed direction with respect to the rotary member, and - adjusting a display angle at said display screen in accordance with said rotation angle measured so that said display screen performs a display in a predetermined direction. The method according to the invention allows a more ergonomic display and faster access and with less danger to the information displayed on the display screen compared to devices of the state of the art. The adjustment step may advantageously comprise the following operations: - comparing the measured angle of rotation with the angle of the predefined direction, and - correcting the display angle at the screen display according to said comparison.

Advantageously, the adjustment step can be performed at a frequency defined by the inverse of the minimum time in which the steering wheel can rotate by a predetermined threshold rotation angle. This threshold rotation angle is previously defined, and may be adjustable by the user. In a particular embodiment, the threshold rotation angle is between 0.5 degrees and 1.5 degrees and particularly is equal to 1 degree. In addition, the minimum rotation time corresponding to these threshold rotation angle values is between 1.4 milliseconds and 4.2 milliseconds, and in particular equal to 2.8 milliseconds. The frequency of realization of the adjustment step is then between 714 Hertz and 238 Hertz, and in particular 357 Hertz.

In a particular embodiment, the adjustment step can also be performed at a frequency greater than or equal to the display frequency. In the case where the display frequency is less than or equal to the adjustment frequency, it is the most recent data / image that is displayed when the display is refreshed, ie the adjustment frequency is made less than or equal to the display frequency.

According to a particular embodiment, the adjustment step can be carried out each time the measured rotation angle varies by a predetermined value with respect to the previously measured angle of rotation or with respect to the angle of rotation. corresponding to the predetermined direction. According to a particular embodiment, the adjustment step can be performed at a frequency based on the visual perception of the conductor, and therefore at a frequency around 30 Hz, for example 25 Hz or greater than 25 Hz. According to a particular embodiment, the adjustment step can be performed each time a new display is made, at the same time or in real time just before the new display.

When the display screen is tactile, the method according to the invention may advantageously comprise a step of detecting a position, said previous, a touch selection or the position, known as current, of the hand and / or a user's finger on the rotating member, and a step of adjusting a so-called next position of an image / data item to be displayed so that said image / data item is displayed at a next position. located near / around said previous position or said current position. Thus, the method according to the invention allows to dynamically change the position of a displayed information and / or a selection button displayed on the display screen according to the location of the hand or a finger of a user. The user has the information displayed and selection buttons displayed under his hand at any time. The method according to the invention allows a more ergonomic display and faster access and with less danger to information or buttons 25 selections displayed on the display screen compared to devices of the state of the art.

According to a preferred embodiment, the next position can be adjusted to the current position, so that the data to be displayed is displayed by the user's hand. Thus, whatever the change of position of the hand of the user on the steering wheel after the touch selection, the displayed data follows the position of the hand. According to one embodiment, the next position can be adjusted to the previous position, so that the data to be displayed is displayed at the same position regardless of the movements of the steering wheel. Thus, regardless of the change of position of the user's hand on the steering wheel after the touch selection, the displayed data remains in the same position.

According to one embodiment, the position of the data to be displayed may not be adjusted, so as to let it follow the movements of the steering wheel. Thus, the displayed data remains equally accessible regardless of the movements of the steering wheel if the user has not moved his hand on the steering wheel after the touch selection. This mode is advantageous in the absence of means for detecting the position of the hand and / or the finger after the touch selection. Furthermore, the method according to the invention may further comprise a step for adjusting and / or selecting contextually a data / image to be displayed as a function of: at least one geolocation data, at least one data item , said spatio-temporal, relating to an external condition in which the vehicle evolves, and / or - at least one datum, said operating, relating to a state of operation of said vehicle

For example, the method according to the invention may comprise a step of adjusting and / or selecting a data item to be displayed as a function of a geolocation data item.

Such an adjustment or selection step may include converting data to be displayed from a first measurement system to another measurement system.

The method according to the invention may further comprise a step of adjusting and / or selecting a data item to be displayed as a function of a given, so-called spatio-temporal data, relative to an external / internal condition. The spatio-temporal data can be related to a temperature, a visibility or a meteorological situation. The method according to the invention may further comprise a step of adjusting and / or selecting a data item to be displayed as a function of a so-called operating datum relating to an operating state of the vehicle. The data to be displayed may be data relating to the operating state of a vehicle member such as, for example, a tire or a motor, or data relating to an emergency telephone number.

Other advantages and features will become apparent upon consideration of the detailed description of non-limiting embodiments, and the accompanying drawings, in which: FIG. 1 is a schematic representation of a first embodiment of a device of FIG. display according to the invention; FIG. 2 is a schematic representation of a second embodiment of a display device according to the invention; FIG. 3 is a schematic representation of a third embodiment of a display device according to the invention; and FIGURE 4 is a diagrammatic representation in the form of a diagram of a method according to the invention.

In the figures and in the following description, the elements common to several figures retain the same reference.

FIGURE 1 is a schematic representation of a first embodiment of a display device according to the invention. The device 100, shown schematically in FIG. 1, comprises a display module 102 controlling a rotationally symmetrical display screen 104 arranged centrally in a central zone 297 of a steering wheel 106. display 104 is disposed on the steering wheel 106 so that the axis of revolution of the display screen 104 coincides with the axis of rotation of the steering wheel. The display module 102 includes a sensor element 108 arranged to measure the rotation angle of the flywheel 106. The device 100 includes an adjustment module 110 adjusting the display angle of a received image / data display. from a generation module 112 generating the image / data to be displayed. The measured rotation angle is compared by the adjustment module 110 at a predetermined angle for a predetermined predetermined display direction relative to the flywheel 106. The adjustment module 110 receives from the generation module 112 the image / data to display. The image / data to be displayed is generated for display at a default angle. This default angle may correspond to the predetermined direction when the flywheel 106 is in the rest position, i.e., when it is not turned in either direction. The default display angle is adjusted by the adjustment module 110 as a function of the rotation angle of the flywheel 106 provided by the sensor element 108, so that the image / data is displayed according to the predetermined direction regardless of the angle of rotation of the flywheel 106. Specifically, the adjustment module determines the difference A between the predetermined direction shown by the line 114, relative to the rotation angle of the wheel 106 materialized by the right 116. This difference is then subtracted from the default display angle and thus the data / image is displayed in the default direction 114. The data / image to be displayed is thus displayed with an angle [3-A .

FIGURE 2 is a schematic representation of a second embodiment of a display device according to the invention. The device 200 shown in FIG. 2 comprises all the elements of the device 100 of FIG. 1. The device 200 further comprises a module 202 for detecting a position of a touch selection made on the screen 104. This position, The latter is then communicated, on the one hand, to the generation module 112 for generating a new data item / image to be displayed and, on the other hand, to the adjustment module 110. The so-called following position of the new data / image to be displayed is adjusted by the adjustment module 110 according to the previous position so that the new data / image is displayed near or in the same position as the previous position. Concretely, the previous position is a set of two values (X, Y). The data / image to be displayed is generated by the generation module with a default position, for example (A, B). The adjustment module adjusts the values A and / or B so that A = X or X 'and B = Y or Y', with X 'and Y' very close to X and Y, respectively. a position of a touch selection may further be arranged to detect the so-called current position of a user's hand or finger on the flywheel 106 so that the position of the image / datum at display is also adjusted according to this current position.

FIGURE 3 is a schematic representation of a third embodiment of a device according to the invention. The device 300 comprises all the elements of the device 200 of FIG. 2. In the device 300 of FIG. 3, the generation module 112 is furthermore arranged to receive GPS data from a geolocation system 302 or a computer 308 of the vehicle, a data F relating to the operating state of the vehicle from at least one sensor 304 or the computer 308 and a data item M relating to the spatio-temporal context in which the vehicle moves from at least one sensor 306 or from the computer 308 eg meteorological data or visibility data. The generation module 112 adjusts and contextually and dynamically chooses the type of data / image to be displayed, the nature of the data / images to be displayed as well as the selection buttons to be displayed. For example, the generation module 112 may be arranged to display by default a volume control button when no data is received. As soon as a data F relating to a malfunction is received, for example a puncture data, the volume control knob 5 is replaced by a button for activating the hazard warning lights and / or an emergency number to be called. . In the same way, when a data M relating to a low visibility is received, the volume control knob is replaced by a button of operation of the dipped beam.

FIGURE 4 is a diagrammatic representation in the form of a diagram of an exemplary method according to the invention. The method 400 shown in FIG. 4 comprises a step 402 for generating a data item / image to be displayed.

In step 404 the generated image is adjusted according to contextual data described above. During a step 406, an angle of rotation of the steering wheel is measured. The measured angle is compared with the angle of the predetermined direction in a step 408. If the measured angle is not different from the angle corresponding to the predetermined direction, no adjustment is made. If the measured angle is different from the angle corresponding to the predetermined direction, the difference A between the measured angle and the corresponding angle is determined. In a step 410 the position of the previous touch selection is determined. The data (X, Y) corresponding to this previous touch selection is stored. According to the difference of angle A, and of the position data (X, Y), a step 412 adjusts the display angle and the position of the data / image previously adjusted contextually. This step 412 includes a substep 414 adjusting the display angle and a substep 416 adjusting the display position. The image / data thus adjusted is then sent to the screen for display at step 418. Of course, the invention is not limited to the examples which have just been described.

Claims (2)

REVENDICATIONS1. A display device (100-300) for a vehicle comprising at least one display screen (104) to be disposed in / on a rotatable member (106) of said vehicle, characterized in that said display screen (104) is arranged to display in a predetermined direction (114) regardless of the rotation angle of said rotary member (106). 2. Device (100-300) according to claim 1, characterized in that it comprises: - at least one sensor means (108) for measuring an angle of rotation of said rotary element (106), and - at least one means (110), said adjustment, arranged to adjust a display angle at said display screen (104) according to said rotational angle so that said display screen (104) performs a display according to the predetermined direction (114). 5. Device (100-300) according to claim 2, characterized in that the sensor means (108) for measuring the angle is a type of angle sensor inclinometer, tiltmeter, goniometer and / or interferometer. 6. Device (100-300) according to any one of claims 2 or 3, characterized in that the adjustment means (110) is arranged to: - compare the angle of rotation measured at the angle of the direction Predetermined (114), and - correcting the display angle at the display screen (104) according to said comparison. 5. Device (100-300) according to any one of claims 2 to 4, characterized in that the sensor means (108) and the adjustment means (110) are arranged to operate at a predetermined frequency which is greater or equal to the display frequency. 6. Device (100-300) according to any one of the preceding claims, characterized in that the display screen (104) is symmetrical of revolution, for example of circular shape. 7. Device (100-300) according to any one of the preceding claims, characterized in that the display screen (104) is tactile. 8. Device (200,300) according to claim 7, characterized in that it comprises means (202) for detecting the position, said previous, of a touch selection or position, said current, the hand and / or the a finger of a user on the rotatable member (106), the adjustment means (110) being further arranged to adjust the so-called next position of an image to be displayed so that said image is displayed at a position next to / around said previous position or said current position. 9. Device (300) according to any one of the preceding claims, characterized in that it comprises a module (112) arranged to adjust and / or contextually choose a data / image to display according to: - at least one geolocation data (GPS), of at least one datum (M), called spatio-temporal data, relating to an external condition in which the vehicle is moving, and / or of at least one datum (F), referred to as operation, relating to an operating state of said vehicle. 10. A rotating element (104) of a vehicle comprising a housing for accommodating a screen of a device (100-300) according to any one of the preceding claims. 11. An assembly comprising: - a rotating element for a vehicle, and - a device according to any one of claims 1 to 9. 2978942 - 21 - 12. An assembly according to claim 11, characterized in that the display screen ( 104) is disposed in / on the rotatable member (106) centrally. 13. Assembly according to any one of claims 11 or 12, characterized in that the display screen (104) is symmetrical of revolution and the axis of revolution is on the axis of rotation of the rotary element (106). 14. An assembly according to any one of claims 11 to 13, characterized in that the rotatable member (106) is a vehicle steering wheel intended to steer the vehicle. A vehicle comprising a display device (100-300) or an assembly as claimed in any one of the preceding claims. 16. A vehicle display method (400) comprising at least one display screen (104) intended to be arranged in / on a rotary element (106) of said vehicle, characterized in that it comprises the following steps: measuring (406) an angle of rotation of said rotary member, and - adjusting (414) a display angle at said display screen (104) according to said measured rotation angle so that said screen display displays in a predetermined direction (114). The method (400) according to claim 16, characterized in that the adjusting step comprises the following operations: - comparing (408) the angle of rotation measured at the angle of the predetermined direction (114), and correcting (414) the display angle at the display screen (104) based on said comparison. The method (400) of any one of claims 16 or 17, characterized in that the measurement and adjustment steps (406, 414) are reiterated at a predetermined frequency which is greater than or equal to the frequency display. 19. Method (400) according to any one of claims 16 to 18, characterized in that, when the display screen (104) is tactile, said method further comprises a step (410) of detection of a so-called preceding position of a touch selection or the so-called current position of the user's hand and / or finger on the rotating member (104), and a step (416) of adjusting a so-called next position of an image to be displayed so that said image is displayed at a next position in the vicinity of / around said previous position or current position. 20. Method (400) according to any one of claims 16 to 19, characterized in that it further comprises a step (404) for adjusting and / or contextually choosing a data / image to be displayed according to: - d at least one geolocation (GPS) datum, at least one datum (M), called spatio-temporal datum, relating to an external condition in which the vehicle is moving, and / or at least one datum ( F), said operating, relating to an operating state of said vehicle.