EP3509901A1 - Procédé et système de détection de position de siège de véhicule - Google Patents
Procédé et système de détection de position de siège de véhiculeInfo
- Publication number
- EP3509901A1 EP3509901A1 EP17758591.6A EP17758591A EP3509901A1 EP 3509901 A1 EP3509901 A1 EP 3509901A1 EP 17758591 A EP17758591 A EP 17758591A EP 3509901 A1 EP3509901 A1 EP 3509901A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- seat
- wall
- tip
- metal plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 8
- 239000002184 metal Substances 0.000 claims abstract description 27
- 230000005355 Hall effect Effects 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000005291 magnetic effect Effects 0.000 description 5
- 239000003302 ferromagnetic material Substances 0.000 description 3
- 235000012431 wafers Nutrition 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 210000002105 tongue Anatomy 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0722—Constructive details
- B60N2/0725—Closing members for covering the slide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
- B60N2/0272—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for detecting the position of seat parts
Definitions
- the invention relates to a method and a system for detecting the position of a guide rail and for adjusting a vehicle seat, and to a vehicle equipped with at least one such detection system. position of seat adjustment slide.
- the field of the invention relates to safety in vehicles in connection with the longitudinal adjustment slide of the sliding seats.
- Vehicle means any means of passenger transport: automobile, aeronautical, maritime, railway or equivalent.
- the adjustment position of the seats is detected by a Hall effect sensor fixed on the seat plate slidable in the adjustment slide.
- a Hall effect sensor fixed on the seat plate slidable in the adjustment slide.
- Such a sensor is capable of detecting any variation in the magnetic field that it produces, in particular by the presence of ferromagnetic material. This detection then conditions the deployment of the frontal airbags with an adjustment of the inflation volume of the bag according to the supposed diverence of the occupant of the seat.
- the tipping point is the boundary between the medium and large and small occupant ranges. It is detected by the position sensor when the end of the profile of the slide, in which the seat slides, is located at the right of this sensor. Indeed, the passage of this end in front of the Hall effect sensor varies the magnetic field when the slide steel or metal alloy reaches its height.
- This seat position data with respect to the tilting point thus makes it possible to adapt the inflating volume of the airbag: a setting position located upstream of the tilting point, namely on the front "AV" of the travel of the slide (towards the front of the vehicle), corresponds to a small occupant, and therefore to an airbag deployment with a reduced inflation volume;
- a setting position located downstream of the tipping point, that is to say on the rear "AR" of the run of the slide (toward the rear of the vehicle), corresponds to a significant occupant medium or large, and therefore to an airbag deployment with a standard inflation volume.
- the operation of the sensor is optimized by achieving a continuity of the signal and an intervention of the tipping point at a given time, this bridge being variable from one vehicle to another and from one manufacturer to another. To do this, certain constraints must be met:
- the tilting point is displaced relative to the target position, which may have an impact on safety and, at the very least, a corresponding non-adapted airbag volume. to the damence of the occupant of the seat.
- the design of the sliding plate of the seat can be questioned in order to avoid positioning the sensor in an area with high mechanical stress.
- the presence in the slide of notches for fastening the slide or for molding a workpiece is highly disturbing for the position sensor.
- shortening the slide to adjust the position of the tipping point as desired increases the risk of damage in the event of an impact.
- US patent document 2014291473 describes precisely means for eliminating thickness discontinuities of the lower rail.
- the lower rail has at the end a horizontally folded portion on which the wall of an end piece is integrated, with a surface continuity between a reference face of the rail and the adjacent outer face of the tip.
- the sensor arranged on the upper rail thus detects the folded portion of the lower rail through the nozzle without discontinuity of distance.
- the invention is aimed primarily at achieving a simple and effective tipping point detection. To do this, the invention provides the presence of a metal part in a particular arrangement at the end of the slide.
- the present invention relates to a position detection method of a fixed rail for guiding and adjusting a vehicle seat, wherein the detection, performed by a Hall effect sensor solidary of the seat when the guide rail is at the right of the sensor, defines a tilting point between two sliding ranges front and rear seat adjustment.
- the method consists in inserting at least one metal plate in a tip that caps a front end region of the rail so that an edge of the wafer, which is in line with said sensor during the sliding of the seat, deceives the presence of the rail and triggers the detection of the tipping point in place of the rail.
- the insertion of the metal plate is made by overmoulding in the tip and is positioned in this tip so that its trigger point detection edge is adjusted for a predefined distribution between the front and rear sliding areas of the seat.
- the tip is molded so that it has a continuity of material with the slide.
- the endpiece fills the holes and irregularities that the slide presents in its end zone.
- the invention also relates to a position detection system of a fixed rail for guiding and adjusting a vehicle seat intended to implement the method defined above.
- a position detection system of a fixed rail for guiding and adjusting a vehicle seat intended to implement the method defined above.
- Such a system comprises a Hall effect detection sensor arranged on a plate integral with the seat and able to slide in the rail.
- the rail having at least one wall extending along a longitudinal axis, at least one metal plate, which extends in at least one plane parallel to said wall of the rail, is inserted into a tip covering a zone d end of the rail.
- the metal plate is overmolded in a flat end wall bearing against at least one wall of the rail extending along the longitudinal axis;
- the metal plate extends longitudinally in at least one corresponding flat tip wall
- the metal plate extends transversely in at least one corresponding flat tip wall.
- the invention also relates to a vehicle comprising at least one seat equipped with a position detection system of a fixed rail for guiding and adjusting said seat as defined above.
- the qualifier “longitudinal” refers to the main extension dimension of the reference object, a slide in the examples below.
- transverse designates the overall extension of an element, for example a metal plate, in a plane perpendicular to the longitudinal extension of the reference object. Any horizontal extent is considered parallel to the floor plan of the vehicle, any vertical extent is considered perpendicular to said floor, and any inclined extension refers to the same floor.
- the qualifiers “front” and “rear” refer to the usual names used to differentiate the front and the rear of any motor vehicle.
- FIGS. 2a and 2b views in perspective and from below, respectively before and after the installation of the metal plates in the slide end of the first example according to the invention
- FIGS. 3a and 3b perspective views before and after the installation of the metal plates in the slide end of a second example of a slide according to the invention.
- a vehicle seat slide 5 (see Figure 1b) is formed of a base rail 1 fixed to the floor of the vehicle 100 and s extending along the longitudinal axis X'X.
- Each seat 5 comprises two slides of this type and each rail 1 also comprises a tip 2 which caps a front end area 1a of the rail 1, marrying the "U" configuration of the rail 1 formed by the horizontal walls 16 and vertical 17 of each wing of the "U” and its bottom 1 F.
- the tip 2 is coupled mechanically to the rail 1 by tongues 21 coming through slots 12 of the rail 1.
- Such a tip has protective and aesthetic functions.
- each fixed rail 1 is slidable a movable rail formed of a plate 3 (see Figure 1 b) to reach a position adapted to the diverence of the passenger.
- the positions of the plate 3 are defined by the introduction of a removable bar 31 in the aligned notches 13 formed along a longitudinal wall 14 of the rail 1 folded inwards and perpendicularly to the floor of the vehicle 100.
- metal plates 4 are inserted into the upper horizontal walls 22 of the nozzle 2 formed parallel to the floor of the vehicle 100 after fixing the rail 1.
- the plate 3 is fixed on the seat 5 via a vertical wall 32 on which is mounted a Hall effect sensor 6 via a vertical support 6a.
- the sensor 6 passes to the right of the front edge 4a of the metal plates 4.
- This passage corresponds to the tilting point PB defined between the front and rear ranges AR rear seat adjustment 5, on the line LB switching using the sensor 6.
- This position is marked by a precise detection, that is to say almost instantaneous and unambiguous, said sensor 6 because of the position of the wafers 4 or 4 '(cf 4b) of the detection system according to the invention.
- the tip 2 is molded so as to fill the holes and irregularities of the rail 1, for example the blind hole 15, so as to achieve continuity of material using advances, such as the part 2p which
- the perspective view of FIG. 2a illustrates the placing of the metal plates 4 parallel to the horizontal walls 22 of the tip 2, before their insertion against an inner face 22i of these walls 22 as illustrated. by the bottom view of the tip 2 of Figure 2b. In this Figure 2b, also appear the tongues 21 coupling the tip on the rail 1 ( Figure 1a) in their entire length.
- FIG. 3a A second example of a detection system according to the invention is shown in Figures 3a and 3b with reference to the perspective views, respectively, of the tip 2 'and the rail 1' capped with such a tip.
- the metal plates 4 ' are positioned at a distance from the tip 2' and extend transversely along the "T" plane (see FIG. 3b).
- Each metal plate 4 ' has three flat walls 4a at 4c respectively parallel to the vertical wall 2v, horizontal 2h and inclined 2i of the nozzle 2 'in reference to the horizontal plane of the vehicle floor 100 (see Figures 1a and 1b).
- Figure 4b the longitudinal sectional view along the vertical plane V-V of Figure 3b is illustrated in Figure 4b.
- the shape of the metal plates is adapted to the shape of the slide tip used.
- the metal plates may extend longitudinally against a plurality of adjacent longitudinal walls of the rail, such as the walls 2v, 2h and / or 2i.
- the metal plates are advantageously highly conductive material, in particular ferromagnetic material.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1658395A FR3055841B1 (fr) | 2016-09-09 | 2016-09-09 | Procede et systeme de detection de position de siege de vehicule |
| PCT/FR2017/052108 WO2018046812A1 (fr) | 2016-09-09 | 2017-07-27 | Procédé et système de détection de position de siège de véhicule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3509901A1 true EP3509901A1 (fr) | 2019-07-17 |
Family
ID=57539400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17758591.6A Withdrawn EP3509901A1 (fr) | 2016-09-09 | 2017-07-27 | Procédé et système de détection de position de siège de véhicule |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3509901A1 (fr) |
| FR (1) | FR3055841B1 (fr) |
| WO (1) | WO2018046812A1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2815585B1 (fr) * | 2000-10-19 | 2003-02-07 | Faurecia Sieges Automobile | Dispositif de reglage pour siege de vehicule et systeme pour vehicule comprenant un siege equipe d'un tel dispositif |
| US7195261B2 (en) * | 2002-11-12 | 2007-03-27 | Ts Tech Co., Ltd. | Position sensor system and vehicle seat provided with the position sensor system |
| DE102013205497B4 (de) | 2013-03-27 | 2015-02-05 | Lear Corporation | Sitzschienen-Abschlusskappe und Bewegungsanschlag-Sitzpositions-Sensor |
| DE102013213798B4 (de) | 2013-07-15 | 2019-04-25 | Hartmann-exact KG | Fahrzeugsitzpositionssensor, Fahrzeugsitz und Verfahren |
| DE102013221986B4 (de) * | 2013-10-29 | 2018-10-31 | Hartmann-exact KG | Fahrzeugsitz mit Positionssensor |
| JP6254057B2 (ja) * | 2014-08-28 | 2017-12-27 | トヨタ紡織株式会社 | 乗物用シートのスライド位置検出装置におけるカバー構造 |
-
2016
- 2016-09-09 FR FR1658395A patent/FR3055841B1/fr not_active Expired - Fee Related
-
2017
- 2017-07-27 WO PCT/FR2017/052108 patent/WO2018046812A1/fr not_active Ceased
- 2017-07-27 EP EP17758591.6A patent/EP3509901A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3055841A1 (fr) | 2018-03-16 |
| WO2018046812A1 (fr) | 2018-03-15 |
| FR3055841B1 (fr) | 2018-10-12 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
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| INTG | Intention to grant announced |
Effective date: 20200402 |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PSA AUTOMOBILES SA |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20200813 |