EP3918409A1

EP3918409A1 - Method and device for recording a relative position of a head-up display on a structural element of a motor vehicle and associated assembly

Info

Publication number: EP3918409A1
Application number: EP20702125.4A
Authority: EP
Inventors: Eric Blanc; Laurent DELPIERRE; Laurent Sauzay; Stephane Botta
Original assignee: Valeo Comfort and Driving Assistance SAS
Current assignee: Valeo Comfort and Driving Assistance SAS
Priority date: 2019-02-01
Filing date: 2020-01-30
Publication date: 2021-12-08
Also published as: WO2020157176A1; FR3092405A1; CN113711104A; FR3092405B1

Abstract

The invention relates to a method for recording a relative position of a head-up display (1) on a structural element (11) of a motor vehicle, one object (1, 11) among the head-up display (1) and the structural element (11) featuring a pre-marked reference mark (21), comprising steps of: - positioning the head-up display (1) on the structural element (11), the pre-marked reference mark (21) thus being positioned facing the other object (1, 11) among the head-up display (1) and the structural element (11), - marking another reference mark (23) in order to record the relative position of the pre-marked reference mark (21) with respect to the other object (1, 11). A recording device (19) and an assembly comprising a head-up display (1) and a structural element (11) of a motor vehicle are also described.

Description

Title of the invention: Method and device for memorizing a relative position of a head-up display on a structural element of a motor vehicle and associated assembly

It is known to use a head-up display, capable of displaying basic information (vehicle speed, direction to follow, etc.) and safety information (engine malfunction, presence of obstacle, etc. .) in the environment in front of the vehicle at the level of the driver's gaze.

[0002] A head-up display generally comprises a housing fixed to the chassis of the vehicle.

In the housing is generally housed an image generation device which produces light rays carrying images. A partially transparent blade, fixed for example on the housing (possibly in a mobile manner), reflects these light rays in the direction of the driver so as to form virtual images in the driver's field of vision. In other cases, it is the windshield which acts as a partially transparent blade and reflects these light rays towards the driver. In all cases, the virtual images, comprising the information to be displayed, are visually superimposed on the environment facing the vehicle.

[0004] So that the driver can effectively view these virtual images when he is in the driving position, his eyes must be located in an area of the space reached, at the output of the display, by at least part of the light rays output from the image generation unit.

[0005] The area of space reached by the virtual images depends, in part, on the position of the housing on the vehicle chassis, it is therefore important to position the housing correctly when it is mounted in the vehicle.

Each time a new housing is mounted in the vehicle, for example in the case where the old housing must be replaced, the housing positioning process must be implemented. This positioning process can be long and complex.

[0007] In this context, the present invention provides a method for storing a relative position of a head-up display on a structural element of a motor vehicle, an object among the head-up display and the element. of structure having a pre-marked mark, comprising steps of:

- position the head-up display on the structural element, the pre-marked reference being thus positioned vis-à-vis the other object among the head-up display and the structural element,

- mark another mark to memorize the relative position of the pre-marked mark with respect to the other object among the head-up display and the structural element.

[0008] The marking step takes place once the positioning process is completed, that is to say once an operator has made the necessary position adjustments so that a user can view the virtual images from the head-up display.

[0009] Thus, when the head-up display must be removed from the vehicle for maintenance or to be replaced, its relative position with respect to the structural element, on which it was positioned, is stored. When the operator replaces the head-up display in the vehicle or replaces it with another head-up display, he can easily and quickly find the position of the head-up display on the structural element. In fact, by aligning, for example, the pre-marked mark presented by one of the objects and the other mark presented by the other of the objects, the operator finds the position of the head-up display. The positioning step of the head-up display is thus simplified and faster.

[0010] According to other advantageous embodiments, such a storage method may have one or more of the following characteristics.

[0011] According to one embodiment, during the marking step, it is planned to mark, on the other object, the other mark opposite the pre-marked mark on the other object.

[0012] According to one embodiment, during the marking step, the other mark is marked in the continuity of the pre-marked mark. Thus, the accuracy of the position of the other mark is improved.

[0013] According to one embodiment, the other object has a pre-marked graduated ruler.

According to one embodiment, the other mark is marked on a remote storage means, for example a notebook, having a distant graduated ruler, so that the relative position between the other mark and the graduated ruler distance reproduces the relative position between the pre-marked mark and the pre-marked graduated ruler.

[0015] According to one embodiment, the other mark is marked by drawing a line.

[0016] According to one embodiment, the other mark is marked by punching. [0017] The invention also proposes a device for memorizing a relative position of a head-up display on a structural element of a motor vehicle, comprising:

- a pre-marked mark presented by an object among the head-up display and the structural element,

another mark suitable for memorizing the relative position of the pre-marked mark with respect to the other object among the head-up display and the structural element.

The invention also presents an assembly comprising a head-up display and a structural element of a motor vehicle, in which the head-up display is positioned on the structural element, in which one object among the The head-up display and the structural element has a pre-marked mark, and the other object is adapted to memorize the relative position of the two objects.

Of course, the different characteristics, variants and embodiments of the invention can be associated with each other in various combinations insofar as they are not incompatible or mutually exclusive.

In addition, various other characteristics of the invention emerge from the attached description given with reference to the drawings which illustrate non-limiting forms of embodiment of the invention and where:

[0021] [Fig. 1] is a schematic representation of a head-up display provided with a storage device according to the invention,

[0022] [Fig. 2] is a schematic representation of a sectional view of the head-up display and of a remote storage device according to the invention,

[0023] [Fig. 3] is a schematic representation of a top view of the head-up display and of another embodiment of the storage device according to the invention,

[0024] [Fig. 4] is a schematic representation of the steps of the storage method according to the invention.

[0025] It should be noted that in these figures the structural and / or functional elements common to the different variants may have the same references.

[0026] FIG. 1 schematically represents a head-up display 1, intended to equip a vehicle, for example a motor vehicle, a train, a tram, a bus, an aircraft (in particular an airplane) or a boat. The head-up display 1 comprises a housing 3 intended to be mounted in a vehicle, at the level of the upper part of the vehicle dashboard. The housing 3 carries a partially transparent blade 5. This partially transparent blade 5 is able to reflect towards the eyes of the driver a light beam coming from an image generation unit (not shown) housed in the housing 3. The beam light generated inside the housing 3 comes out through an opening 7 formed in an upper face of the housing 3. Alternatively, the housing 3 could not carry such a partially transparent blade and the image generation unit could then project the light beam in the direction of the vehicle windshield, which would thus act as a partially transparent blade and reflect the light beam towards the driver's eyes.

The housing 3 has assembly means 9 making it possible to assemble the housing 3 to a structural element 11 of the vehicle, for example visible in FIG. 2. The assembly means 9 comprise for example an element of assembly 13, here a flange having a flat outer face, projecting from a wall 15 of the housing 3. The assembly element 13 has for example at least one through opening 17 allowing the passage of a fixing element, by example a screw or a finger. The assembly means 9 may comprise a plurality of assembly elements 13 located on a plurality of walls 15 of the housing 3.

A memory device 19 of a relative position of the head-up display 1 on the structural element 11 of the vehicle makes it possible to keep in memory the position of the head-up display 1 once it is assembled to structural element 11.

The storage device 19 comprises a pre-marked marker 21 presented by an object among the head-up display 1 and the structural element 11. According to an embodiment illustrated in FIG. 1, the pre-marked marker marked 21 is located on the head-up display 1. More precisely, according to the embodiment shown in Figures 1 and 2, the pre-marked marker 21 is located on the assembly element 13 of the housing 3.

The pre-marked reference 21 comprises for example a symbol marked on the assembly element 13 or the housing 3, or else a notch made in the assembly element 13 or the housing 3. In Figures 1 at 2, the pre-marked reference 21 comprises a symbol located on the assembly means 13.

As can be seen in Figure 2, the storage device 19 comprises another mark 23 presented by the other object 1, 11 among the head-up display 1 and the element of structure 11. The other mark is adapted to memorize the relative position of the pre-marked mark 11 with respect to the structural element 11.

According to the embodiment illustrated in Figure 2, the other mark 23 is located on the structural element 11. The structural element 11 comprises for example a spar or a cross member of the vehicle. The other reference 23 comprises for example another symbol marked on the structural element 11 or else a notch produced in the structural element 11. In FIG. 2, the other reference 23 comprises a line (produced after positioning in the vehicle as explained below).

Preferably, the other mark 23 is marked in the continuity of the pre-marked mark 21.

Optionally, the other object 1, 11 among the head-up display 1 and the structural element 11, here the structural element 11 comprises a pre-marked graduated ruler 25.

As a variant, the storage device 19, illustrated in FIG. 2, could possibly comprise the pre-marked graduated rule 25 and a remote storage means 27 comprising a remote graduated rule 29. The remote storage means 27 comprises a register, for example a notebook or else a computer database the content of which can be consulted by an operator. The distant graduated ruler 29 reproduces, for example, the pre-marked graduated ruler 25. The distant graduated ruler 29 may have, in particular, the same number of graduations as the pre-marked graduated ruler 25 mentioned above.

The position of the other mark 23 on the distant graduated ruler 29 then reproduces the position of the pre-marked marker 21 relative to the pre-marked graduated ruler 25.

According to the embodiment illustrated in Figure 3, the storage device 19 has a plurality of pre-marked marks placed vis-à-vis a plurality of structural elements 11 of the vehicle. The storage device 19 then comprises a plurality of other marks 23 adapted to memorize the respective relative positions of the pre-marked marks with respect to the structural elements 11. In the example illustrated, two other marks are marked on two distant graduated rulers. 29.

Alternatively (not shown), the pre-marked mark could be located on the structural element of the vehicle, and the other mark is located on the head-up display.

[0040] The embodiments can be combined. Thus a plurality of other marks can be marked to memorize the relative position of the head-up display 1 on the structural element 11: other marks are marked directly on one or the other of the head-up display 1 and the structural element 11, and other marks are marked on remote storage means 27.

Figures 2 and 3 also show an assembly comprising the head-up display 1 and the structural element 11 of a motor vehicle. The head-up display 1 is positioned on the structure element 11. One object among the head-up display 1 and the structure element 11 has the pre-marked mark 21, and the other object 1, 11 is suitable for memorizing the relative position of the two objects 1, 11. For example, the object 1, 11 has a symbol serving as a pre-marked mark, and the other object 1, 11 is suitable for being marked with another reference 23. For example, the other object 11 is capable of being punched or else capable of keeping the trace of a marker.

In Figure 4, there is shown a storage method according to the invention.

In a positioning step 100, an operator positions the head-up display 1 on the structural element 11. The pre-marked mark 21 located on one of the objects 1, 11 is thus positioned opposite. screw of the other object 1, 11.

During the positioning step 100, the operator places the head-up display 1 at a first position relative to the structural element 11. Then, the operator adjusts the position of the head display. -high 1 to an end position. The final position of the head-up display 1 allows the user of the vehicle to view the virtual images displayed by the head-up display 1 in the user's frontal environment. The final position depends in particular on the head-up display model and the vehicle model.

During an assembly step 102, the operator fixes the head-up display 1 on the structural element 11 in its final position. As can be seen in FIG. 2, the operator uses, for this, the assembly means 9 provided on the head-up display 1 as well as fixing means 31. In the example illustrated by FIG. 2, the fixing means 31 comprise for example a screw able to cooperate with the opening 17 of the assembly element 13.

In the example illustrated by Figure 3, the head-up display 1 comprises a plurality of assembly elements 13. Each of the assembly elements 13 is then fixed to a structural element 11. In a step 104, the operator marks the other mark 23 to store the relative position of the pre-marked mark 21 with respect to the other object 1, 11.

According to one embodiment of the method, during step 104, the operator marks the other mark 23 on the other object 1, 11, opposite the pre-marked mark 21.

According to the example shown in Figure 2, the operator draws a line 23 at least on the structural element 11. Preferably, the line 23 has a clearly visible color relative to the structural element. 11, for example having a strong contrast, for example in the case of a black structural element, the other mark may be a white line.

According to another embodiment, the operator makes a notch on the structural element 11. The notch is for example produced by punching the structural element 11.

Preferably, the other mark 23 is marked in continuity with the pre-marked mark

21. Continuous marking makes it possible to increase the precision of the memorization process.

As a variant, the pre-marked mark could be located on the structural element 11 and the operator marks the other mark 23 on the head-up display 1.

According to another embodiment already mentioned, the other object 1, 11 presents the pre-marked graduated ruler 25. During step 104, the operator marks the other mark 23 on the remote storage means 27. The remote storage means 27 presents a remote graduated ruler 29. The operator notes the position of the pre-marked marker 21 relative to the pre-marked graduated ruler 25, and marks the other marker 23 at a corresponding position on the distant graduated ruler 29.

In the example of Figure 2, the pre-marked mark 21 is located between a fourth graduation 33 and a fifth graduation 35. The operator then marks the other mark 23 on the remote graduated rule 29, between a distant fourth graduation 37 and a distant fifth graduation 39.

When the remote storage means 27 comprises a notebook, then the operator draws a line on the remote graduated ruler 29 of the notebook.

In the case of a remote storage means 27 comprising a computer database, the operator can, using a computer comprising a user interface and a computer capable of transmitting data to the database. computer data, enter the position of the other marker 23 on the remote graduated ruler using user interface. The user interface displays, for example, the remote graduated ruler, and the operator reports the position of the other marker 23 on the remote graduated ruler 29. The relative position of the other marker 23 is stored in the database computer science. The position of the other mark 23 on the distant graduated ruler can be consulted later.

As can be seen in Figure 3, when the head-up display 1 has a plurality of assembly elements 13 each having a pre-marked mark 21, the respective relative positions of the pre-marked marks are stored. thanks to other respective benchmarks. [0058] Of course, various other modifications can be made to the invention within the scope of the appended claims.

Claims

[Claim 1] Method for storing a relative position of a head-up display (1) on a structural element (11) of a motor vehicle, an object (1, 11) among the head-up display (1) and the structural element (11) having a pre-marked mark (21), comprising steps of:

- position (100) G head-up display (1) on the structural element (11), the pre-marked mark (21) being thus positioned opposite the other object (1, 11) among the head-up display (1) and the structural element (11),

- mark (104) another mark (23) to memorize the relative position of the pre-marked mark (21) with respect to the other object (1, 11).

[Claim 2] A method according to claim 1, in which during the marking step (104), it is intended to mark, on the other object (1, 11), the other mark (23) opposite. opposite the pre-marked mark (21) on the other object (1, 11).

[Claim 3] A method according to claim 2, wherein during the marking step (104), the other mark (23) is marked in the continuity of the pre-marked mark (21).

[Claim 4] A method according to one of claims 1 to 3, wherein the other object (1, 11)

presents a pre-marked graduated ruler (25),

[Claim 5] A method according to claim 4, wherein in the marking step (104), the other mark (23) is marked on a remote storage means (27) having a remote graduated ruler (29), so that the relative position between the other mark (23) and the distant graduated ruler (29) reproduces the relative position between the pre-marked mark (21) and the pre-marked graduated ruler (25).

[Claim 6] Method according to one of claims 1 to 5, wherein the other mark (23) is marked by drawing a line.

[Claim 7] A method according to one of claims 1 to 5, wherein the other mark (23) is marked by punching.

[Claim 8] A device for memorizing (19) a relative position of a head-up display (1) on a structural element (11) of a motor vehicle, comprising:

- a pre-marked mark (21) presented by an object (1, 11) among the head-up display (1) and the structural element (11),

- another mark (23) adapted to memorize the relative position of the pre-marked mark (21) with respect to the other object (1, 11) among the head-up display (1) and the structural element (11) ). [Claim 9] An assembly comprising a head-up display (1) and a structural element (11) of a motor vehicle, in which the head-up display (1) is positioned on the structural element (11) , wherein one object (1, 11) among the head-up display (1) and the structural member (11) has a pre-marked mark (21), and the other object (1, 11) is adapted to memorize the relative position of the two objects (1, 11).