WO2017008809A1 - Elastisch deformierbarer schlauch mit einem hohlraum für einen aufprallsensor in einem kraftfahrzeug - Google Patents
Elastisch deformierbarer schlauch mit einem hohlraum für einen aufprallsensor in einem kraftfahrzeug Download PDFInfo
- Publication number
- WO2017008809A1 WO2017008809A1 PCT/DE2016/200321 DE2016200321W WO2017008809A1 WO 2017008809 A1 WO2017008809 A1 WO 2017008809A1 DE 2016200321 W DE2016200321 W DE 2016200321W WO 2017008809 A1 WO2017008809 A1 WO 2017008809A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hose
- vehicle
- damping element
- elastically deformable
- width
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
Definitions
- the invention relates to an elastically deformable hose with a cavity for a crash sensor in a motor vehicle according to the preamble of claim 1.
- An impact sensor with such an elastically deformable hose with a cavity for a motor vehicle can already be seen from WO 2012/1 13362 A1, such a hose having a high cylindrical basic shape there and being made elastically deformable from a cross-linked silicone material and thus in a bumper is mounted, that the deformable tube is arranged in the direction of the impact behind a damping body. Suitable dimensions and materials and dimensions for such a hose are described there extensively.
- the object of the present invention is to present an elastically deformable hose, which is adaptable to different installation positions or design forms of the front end of the vehicle, in particular also different damping body.
- An essential idea of the invention is that, unlike the previously cylindrical basic shape, a shape which is not symmetrical with respect to the vertical axis of the vehicle is selected.
- the tube has a cross-section which has a first width on a first side and a second width on the second, opposite side of the first, wherein the widths are different. It should be pointed out expressly that the position of the 1st and 2nd side with respect to the direction of the impact just need not necessarily be specified by the hose itself, but can be adjusted depending on the particular design of the vehicle front.
- the cross section substantially correspond to a triangular shape or a trapezoidal shape.
- the corners bevelled or rounded and / or the side surfaces are concave.
- Such elastically deformable hose is installed with at least one, preferably 2 pressure sensor (s) for detecting pressure changes in the cavity to a complete impact sensor, as this then distributed and can be installed in a vehicle front.
- a particularly preferred vehicle front with an impact sensor with such an elastically deformable hose results from the fact that the tube is aligned with the second, wider side to the direction of impact. As a result, the second, wider side acts as a large-scale recording for the impact forces occurring.
- the tube is arranged in a shape of a damping element in front of a transverse support member of the vehicle so that the tube protrudes with its first, thinner side of the damping element by a predetermined amount.
- a projection is formed on the damping element, which corresponds in the impact direction to the degree of protrusion of the hose, wherein the projection transversely to the impact direction has a width which is smaller than the total width of the damping element.
- a projection can serve to fix the position of the tube as well as to form a tilting point, wherein the width of the projection is selected so that the force on the tube is not prevented.
- the hose between the outer skin of the vehicle and a damping element is arranged and is fixed by retaining means on the outer skin of the vehicle.
- a vehicle front is provided with an impact sensor with an elastically deformable hose, wherein the hose between the outer skin of the vehicle and a damping element is arranged and supported with the second, wider side on the damping element and with the first, thinner side out of the damping element a predetermined amount protrudes.
- the orientation of the first page is so this time in the direction of the impact and can be very sensitive especially recognize a pedestrian impact.
- the figures all show cross-sectional views, which correspond at least in the installed state in the motor vehicle of the X-Z plane, wherein X is the direction of travel of the motor vehicle.
- X is the direction of travel of the motor vehicle.
- the direction of the expected impact F corresponds precisely to this direction of travel X.
- the Z-axis corresponds to the vertical axis of the motor vehicle.
- the tube then continues with a length of about 2 m in the transverse direction Y, as shown for example in Fig. 7.
- FIG. 6A firstly shows the triangular basic shape, here the first side 1 1 is tapered so sharply to a point that its width B 1 1 approaches 0, whereby, of course, as will be shown in more detail in the following figures, in practice rather a bevel or rounding off this basic form in the area of this 1.
- Page 1 1 changes.
- the significantly larger width B 12 of the opposite, second side is arranged with a defined diameter, wherein the cross-sectional shape and the distances to the respective edges are customizable application.
- the shape of the corners 1 12 of the second page and the side surfaces 1 13 can be adjusted accordingly.
- Figure 6B shows an embodiment in which both the 1st side 1 1 and the corners 1 12 are each designed bevelled, the length of each bevel, of course, each shorter than the remaining width B 12 of the second page.
- FIG. 6C shows a modification in which the first side 11 and the corners 12 1 are each rounded off, the radius of the rounding also being significantly smaller than the width B 12 of the second side 12, so that a substantially triangular basic shape is still maintained.
- FIG. 6D now outlines a further embodiment in which the side surfaces 12 and 13 are curved slightly concave outwards, whereby again the radius of the rounding is significantly greater than the width B12, so that in turn a substantially triangular basic shape is maintained.
- Figures 6e and 6f sketch further variants with a trapezoidal basic shape. Other combinations and modifications of these cross-sectional shapes and appropriate dimensioning of the dimensions and material selection are each conceivable and feasible depending on the particular conditions of the application.
- Figures 1 -5 now show each vehicle front with a hose 1, a cross car beam 2 and a damping body 3 and the vehicle outer skin 4, wherein the figure A respectively the unloaded state before the impact and the figure B, the deformation of the front 1 and in particular the Hose and with F the force direction of the impact outlined.
- FIGS. 1A and 1B show an embodiment in which a groove 31 for receiving the hose 1 is provided in the damping body 3, the groove 31 having a depth in the x direction which is smaller than the thickness of the hose 1 in x-direction. Direction, so that the hose 1 protrudes by a predetermined amount and a cavity 32 between the cross member 2 and the damping body 3 forms. If there is now an impact, as sketched in FIG.
- the damping body 3 is pushed in the direction of the cross member 2, the force is transmitted to the width, second side of the hose 1 and from there to the tip of the thinner, first Side introduced and leads to a pinch and reduce the cross-section in the cavity 14 of the hose, which is detected at the pressure sensors as a corresponding increase in pressure. If the force of the impact exceeds a predetermined level, the cavity 32 is overcome and the damping body 3 comes into contact with the cross member 2, is supported on it and can thus decisively absorb impact forces. At the same time while the hose 1 is largely protected in its groove 31 in the damping body 3.
- Figure 2 shows a modified embodiment in which the damping body 3, a projection 33 is provided.
- the projection 33 has a width in the direction of the Z axis which is smaller than the corresponding width of the entire damping element 3 and otherwise remains the cavity 32 due to the protruding part of the hose 1 projecting out of the groove 31.
- This projection 33 serves as a tipping point and makes it possible to even shift the position of the hose 1 into an area not to be reached directly from the impact, for example, and even to increase the force on the hose 1 via the lever action.
- the corresponding tilting effect about the projection 33 as a fulcrum.
- FIG. 3A shows a particularly suitable embodiment, in which a pickup 41 for the hose 1 is provided on the vehicle outer skin 4, with the hose 1 being snapped or inserted, for example, with its broad side 12 in this pickup 41.
- a corresponding formation 34 may be provided to receive the first side of the tube 1 accordingly.
- Figure 4 shows a modification to an embodiment in which the hose 1 crashes with its broad side in a corresponding groove 34 of the damping body 3 and again the opposite 1. Side protrudes with an intended dimension in the impact direction, so that at the moment of impact first this 1. Side is deformed directly in contact with the outer skin 4 of the vehicle and as early as a pressure pulse in the cavity 14 of the tube is formed.
- FIG. 5 shows a further embodiment of the invention, wherein projections 33 are provided here in addition to the groove 31 in the damping element 3, which, however, have only a width smaller than the width of the entire damping element 3 in the vertical axis Z of the vehicle, so that corresponding cavities 32 are created and adequate Force an embossing in the tube 1 in spite of these projections 33 remains.
- these projections 33 help to fix the position of the damping element 3 and the hose 1 on impact, without affecting the force on the hose too much.
- FIG. 7 shows a plan view of the installation of such a hose (1) as an impact sensor with two pressure sensors (P) in the front end of a vehicle with damping body 3 in front of the cross member 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112016000380.3T DE112016000380A5 (de) | 2015-07-16 | 2016-07-13 | Elastisch deformierbarer Schlauch mit einem Hohlraum für einen Aufprallsensor in einem Kraftfahrzeug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015213369.9A DE102015213369A1 (de) | 2015-07-16 | 2015-07-16 | Elastisch deformierbarer Schlauch mit einem Hohlraum für einen Aufprallsensor in einem Kraftfahrzeug |
DE102015213369.9 | 2015-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017008809A1 true WO2017008809A1 (de) | 2017-01-19 |
Family
ID=56801330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2016/200321 WO2017008809A1 (de) | 2015-07-16 | 2016-07-13 | Elastisch deformierbarer schlauch mit einem hohlraum für einen aufprallsensor in einem kraftfahrzeug |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102015213369A1 (de) |
WO (1) | WO2017008809A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7302930U (de) * | 1972-03-07 | 1973-05-03 | Gulf & Western Ind Prod Co | Stoßfänger, insbesondere Stoßstange für Fahrzeuge |
DE102007006848A1 (de) * | 2006-03-27 | 2007-10-11 | Denso Corp., Kariya | Kollisions-Detektorgerät |
JP2011143825A (ja) * | 2010-01-14 | 2011-07-28 | Toyota Motor Corp | 歩行者衝突検出装置 |
WO2012113362A1 (de) | 2011-02-22 | 2012-08-30 | Continental Automotive Gmbh | Aufprallsensor mit einem elastisch deformierbaren schlauch und zumindest einem drucksensor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004060614B4 (de) * | 2004-12-16 | 2009-08-13 | Continental Safety Engineering International Gmbh | Vorrichtung zum Erkennen eines Fußgängeraufpralls und Verfahren zum Herstellen einer derartigen Vorrichtung |
DE102012010043A1 (de) * | 2012-05-23 | 2013-11-28 | Volkswagen Aktiengesellschaft | Druckschlauchsensor |
JP6036636B2 (ja) * | 2013-10-10 | 2016-11-30 | 株式会社デンソー | 車両用衝突検知装置 |
JP5967056B2 (ja) * | 2013-11-12 | 2016-08-10 | 株式会社デンソー | 車両用衝突検知装置 |
-
2015
- 2015-07-16 DE DE102015213369.9A patent/DE102015213369A1/de not_active Withdrawn
-
2016
- 2016-07-13 DE DE112016000380.3T patent/DE112016000380A5/de active Pending
- 2016-07-13 WO PCT/DE2016/200321 patent/WO2017008809A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7302930U (de) * | 1972-03-07 | 1973-05-03 | Gulf & Western Ind Prod Co | Stoßfänger, insbesondere Stoßstange für Fahrzeuge |
DE102007006848A1 (de) * | 2006-03-27 | 2007-10-11 | Denso Corp., Kariya | Kollisions-Detektorgerät |
JP2011143825A (ja) * | 2010-01-14 | 2011-07-28 | Toyota Motor Corp | 歩行者衝突検出装置 |
WO2012113362A1 (de) | 2011-02-22 | 2012-08-30 | Continental Automotive Gmbh | Aufprallsensor mit einem elastisch deformierbaren schlauch und zumindest einem drucksensor |
Also Published As
Publication number | Publication date |
---|---|
DE112016000380A5 (de) | 2017-09-28 |
DE102015213369A1 (de) | 2017-01-19 |
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