WO2019166268A1 - Module de coussin gonflable de sécurité et système de retenue pour passager de véhicule - Google Patents

Module de coussin gonflable de sécurité et système de retenue pour passager de véhicule Download PDF

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Publication number
WO2019166268A1
WO2019166268A1 PCT/EP2019/054029 EP2019054029W WO2019166268A1 WO 2019166268 A1 WO2019166268 A1 WO 2019166268A1 EP 2019054029 W EP2019054029 W EP 2019054029W WO 2019166268 A1 WO2019166268 A1 WO 2019166268A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
vehicle occupant
chamber
gas bag
support chamber
Prior art date
Application number
PCT/EP2019/054029
Other languages
German (de)
English (en)
Inventor
Stojan BOGDANOVIC
Lothar Zink
Martin Seyffert
Christian Fischer
Original Assignee
Trw Automotive Gmbh
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 Trw Automotive Gmbh filed Critical Trw Automotive Gmbh
Publication of WO2019166268A1 publication Critical patent/WO2019166268A1/fr

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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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R2021/23107—Inflatable members characterised by their shape, construction or spatial configuration the bag being integrated in a multi-bag system
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R2021/23161—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for protecting at least two passengers, e.g. preventing them from hitting each other
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • B60R2021/23324—Inner walls crating separate compartments, e.g. communicating with vents
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats

Definitions

  • the invention relates to a gas bag module for a vehicle occupant restraint system, which is intended to be mounted on a vehicle seat, and a vehicle occupant restraint system for protecting a vehicle occupant with at least one retaining element.
  • the driver will no longer need to constantly monitor the system or vehicle. Rather, the vehicle independently performs functions such as triggering the turn signal, lane change and tracking. This allows the driver to assume a comfortable position in any seat adjustment within a given seat adjustment field.
  • new vehicle concepts allow new interior designs, eg. B. with much slimmer instrument panels and new steering wheel concepts.
  • vehicle concepts are known in which the vehicle seat of the passenger or vehicle seats of rear seat passengers are arranged around a vertical axis rotatable in the vehicle interior. In the case of an autonomously or automatically driving vehicle, the possibility can also be given that the driver can also turn his seat around a vertical axis.
  • the object of the invention is to provide an airbag module and a vehicle occupant restraint system with which a sufficient protective effect can be achieved independently of a position of the vehicle seat and thus of the vehicle occupant.
  • Locations such as “forward,” “lateral,” “upper,” or “lower” refer to a vehicle seating position in which the vehicle occupant is in a normal sitting position on the vehicle seat. Such locations relate to the vehicle seat and not to the vehicle and / or the direction of travel, so that an inventive airbag module and / or a vehicle occupant restraint system according to the invention can also be used in aligned against the direction of travel vehicle seats or around the vertical axis vehicle seats.
  • An inventive gas bag module for a vehicle occupant restraint system serves to protect a vehicle occupant and is intended to be mounted on a vehicle seat.
  • the description "on a vehicle seat” describes in particular an attachment of the gas bag module to a structural element of the vehicle seat.
  • the gas bag module is integrated in the vehicle seat such that it is surrounded by the pad and / or the cover of the vehicle seat and is not visible to a vehicle occupant in the untripped condition.
  • the gas bag of the gas bag module according to the invention has at least two separate chambers.
  • a first chamber of the gas bag is designed according to the invention as a support chamber.
  • the vehicle occupant near outer wall portion of the support chamber of the airbag is at least partially curved concave toward the vehicle occupant.
  • the support chamber is in particular an abutment which can stabilize the forces occurring in the restraint situation and thus stabilizes the gas bag of the gas bag module.
  • This makes it possible, in particular, for the gas bag to be able to sufficiently protect the vehicle occupant even when the vehicle seat is outside a standard position.
  • a comfort position may be, for example a vehicle seat shifted far to the rear or a vehicle seat twisted around the vertical axis.
  • the second chamber is formed according to the invention as an absorption chamber with a vehicle occupant contact wall.
  • the absorption chamber is disposed in the deployed and filled state of the airbag substantially between the vehicle occupant and the support chamber.
  • the vehicle occupant contact wall is preferably formed by an outer wall portion of the absorption chamber that is close to the vehicle occupant. In particular, a forward displacement of the vehicle occupant, in particular of the head and of the upper body of the vehicle occupant, is permitted by the absorption chamber in a restraint situation and energy is also absorbed.
  • the gas bag of the gas bag module according to the invention In the unfolded and filled state of the gas bag causes the at least partially concave curvature of the vehicle occupant outer wall portion to the vehicle occupant that the gas bag of the gas bag module according to the invention is at least partially disposed laterally and in front of the vehicle occupant and thereby at least partially surrounds the vehicle occupant in the restraint situation.
  • the gas bag can contribute to a retention of the vehicle occupant in a restraint situation and preferably a sufficient protective effect can be achieved regardless of the seating position.
  • the support chamber is formed in one embodiment of several blank parts.
  • the cut parts are connected to each other, for example, by sewing, gluing and / or welding.
  • the three-dimensional shape of the support chamber, in particular of the vehicle occupant remote and the vehicle occupant near outer wall portion can be achieved by differently sized cut blank parts.
  • the cut parts of the vehicle occupant outer wall section for example, have a narrower width than the cut parts of the vehicle occupant remote outer wall portion, so that the concave curvature of the support chamber can be achieved towards the vehicle occupant.
  • the three-dimensional shape can also be achieved and / or supported by the introduction of Raffnumbleten, darts and / or tethers.
  • the support chamber can also be formed from a single blank part, which is once folded back on itself, so that two superimposed outer wall sections are formed, which are connected to each other at the free edges.
  • the three-dimensional shape of the outer wall sections is achieved in particular via the introduction of seams and / or darts, in particular in the region of the outer surface of the vehicle near the outer wall.
  • the support chamber can be formed via a suitable three-dimensional weaving method.
  • the curvature is generated by spacer threads which emerge in the warp or weft direction from the fabric composite of one of the outer wall sections, run a piece freely through the interior of the support chamber and enter the fabric composite of the other outer wall section, both spacer threads from the vehicle near the person vehicle occupants as well as from the vehicle occupant distance to the vehicle near the outer wall section change.
  • a woven gas bag is shown for example in DE 10 2017 1 17 31 1.
  • the support chamber of the gas bag module in one embodiment has a higher rigidity than the absorption chamber. Due to the higher rigidity, for example, a high dimensional stability of the support chamber can be achieved. Furthermore, the high rigidity of the function of the support chamber can be supported as an abutment that can stabilize the forces occurring in the restraint situation stabilizing. Furthermore, in particular a forward movement of the support chamber and thus of the entire gas bag of the gas bag module can be limited by the high rigidity of the support chamber.
  • the support chamber in the deployed and filled state of the airbag, may have a higher internal pressure than the absorption chamber.
  • the internal pressure corresponds to a pressure in the respective chamber immediately after completion of the filling process of the chambers of the gas bag of the gas bag module.
  • an inflatable volume of Supporting chamber be greater than the inflatable volume of the absorption chamber.
  • the inflatable volume corresponds to a volume of the chambers of the gas bag of the gas bag module immediately after completion of the filling process. At this time, the maximum intended filling volume of the chambers is substantially reached.
  • a higher rigidity of the support chamber of the gas bag can be achieved by catching and / or stabilizing bands.
  • the catching and / or stabilizing bands can be arranged in the interior of the support chamber and / or on an outer wall section of the support chamber.
  • catching and / or stabilizing bands can be arranged / attached to the other end of the vehicle seat and / or on the gas bag module housing of the airbag module.
  • the vehicle occupant outer wall portion and the vehicle occupant remote outer wall portion may be partially connected to each other, for example, to increase the stability or to achieve the shape of the support chamber. Due to the partially interconnected outer wall sections and / or arranged in the interior of the support chamber catching and / or stabilizing bands, the support chamber can also be divided into a plurality of sub-chambers.
  • the absorption chamber is placed on a vehicle-near outer wall portion of the support chamber and preferably also attached to the vehicle-near outer wall portion of the support chamber.
  • the absorption chamber is formed by a fabric layer attached to the outer surface of the vehicle near the outer wall and fastened to the outer surface of the support chamber close to the vehicle occupant.
  • the region of the vehicle-occupant-outer wall portion of the support chamber, which is spanned by the fabric layer forms a T rennlage between the support chamber and the absorption chamber and also a vehicle occupant remote outer wall portion of the absorption chamber.
  • the fabric layer can be fastened, for example, by sewing, gluing, welding and / or interweaving on the outer wall portion of the support chamber near the vehicle.
  • the patch fabric layer also be composed of several sub-elements.
  • At least a portion of the outer surface of the support chamber which is designed as a separating layer, is designed to be gas-permeable. This allows filling of the absorption chamber via a gas flowing through separation layer.
  • the outer wall portion near the vehicle occupant may be formed as an uncoated airbag fabric at least in a partial region of the separation layer.
  • a partial region of the separating layer may have a weave structure which is more permeable to gas than the weave structure of the remaining outer surface of the supporting chamber close to the vehicle occupant.
  • At least one membrane may be arranged in the region of the separating layer, which allows an overflow of the gas from the supporting chamber into the absorption chamber.
  • an overflow opening and / or an overflow valve may be arranged in the region of the separating layer in addition to or instead of the gas-permeable airbag fabric and / or the membrane.
  • the filling of a gas bag preferably takes place via the same gas source, for example the same gas generator, which is assigned to the gas bag module.
  • the support chamber and the absorption chamber of the gas bag are formed as separately fillable with gas chambers.
  • the absorption chamber is connected to the gas source via a filling channel, for example.
  • the support chamber and the absorption chamber are filled in a restraint situation via the same gas source, in particular the same gas generator.
  • the support chamber and the absorption chamber are each assigned a separate gas source.
  • the gas bag module may have two gas generators.
  • the support chamber is preferably associated with a first gas generator and the absorption chamber with a second gas generator.
  • the first gas generator is designed to be more powerful than the second gas generator.
  • the absorption chamber and the support chamber are each formed as a separate gas cushion.
  • the absorption chamber is fastened to the support-chamber on the vehicle-occupant-outer wall section.
  • the filling of the absorption chamber in the case of restraint can take place via a filling channel.
  • the filling can also take place via an overflow valve and / or an overflow opening.
  • the overflow valve and / or the overflow opening are respectively arranged in the region of the outer wall portion of the support chamber close to the vehicle and the outer wall portion of the absorption chamber remote from the vehicle occupant, which together form the separating layer in such an embodiment.
  • the absorption chamber is divided into a plurality of sub-chambers.
  • the sub-chambers can be formed for example by the introduction of tethers or by the partial connection of the vehicle occupant near outer wall portion and the vehicle occupant remote outer wall portion of the absorption chamber or the vehicle near the outer wall portion of the support chamber.
  • the shape / outer contour of the vehicle-occupant outer wall section can be adapted.
  • the absorption chamber comprises a blow-off valve, which can be used in particular for the regulation of an internal pressure of the absorption chamber. For example, this can prevent excessive internal pressure in the absorption chamber.
  • a blow-off valve is designed to be controllable, so that the internal pressure of the absorption chamber can be regulated, depending on the vehicle occupant. For example, that can Bleed valve to be released only if a vehicle occupant with a low body weight is located on the vehicle seat.
  • the gas bag preferably has only one support chamber with a high rigidity.
  • the gas bag module is intended to be mounted in the backrest to the vehicle seat.
  • the vehicle occupant contact wall is formed in such an embodiment in the region of the vehicle near the outer wall portion of the support chamber.
  • the vehicle near the outside wall portion of the support chamber also extends at least partially concave curved towards the vehicle occupant.
  • the gas bag in the unfolded and filled state is arranged at least partially laterally and in front of the vehicle occupant and surrounds the vehicle occupant.
  • the gas bag surrounds the vehicle occupant such that the support chamber is arranged in a lateral extent in front of the entire upper body of the vehicle occupant.
  • the gas bag Due to the high rigidity provides support chamber in a restraint situation in this embodiment, an abutment that can stabilize the forces occurring in the restraint situation stabilizing and thus stabilizes the gas bag of the airbag module and limits the forward displacement of the vehicle occupant.
  • the gas bag has no additional absorption chamber. In such an embodiment, the gas bag essentially has the function of limiting or decelerating the forward displacement of the vehicle occupant.
  • the high rigidity of the gas bag can be achieved for example by catching and / or stabilizing bands and / or a high internal pressure of the support chamber.
  • the energy absorption can take place, for example, by means of energy absorption elements integrated in the vehicle seat and / or in operative connection with the vehicle seat.
  • an inventive vehicle occupant restraint system comprising at least one retaining element and in which a first retaining element as an inventive Gas bag module is formed, as previously described in various embodiments.
  • the gas bag module is preferably arranged on the backrest of a vehicle seat.
  • an installation space within the backrest of a vehicle seat is provided here as for known side airbags.
  • the intended installation space is located in particular in the region of a side wall of the vehicle seat directed towards the vehicle interior.
  • the airbag can also provide the function of a middle-side bag known from the prior art and limit, for example, a lateral displacement of the vehicle occupant in a side-impact restraint situation, in particular in a side impact on the side of the vehicle further away from the vehicle occupant (Far Side).
  • the vehicle occupant restraint system comprises at least a second retaining element.
  • the second retaining element is designed as a safety belt system.
  • the safety belt system may be a seat-integrated safety belt system in which all components of the safety belt system are integrated into the vehicle seat.
  • a babyverstellfeld the vehicle seat have more degrees of freedom and / or allow greater adjustment of the vehicle seat than in a vehicle seat with a safety belt system which is partially fixed to the vehicle.
  • the safety belt system may also be partially fixed to the vehicle.
  • Such attachment of a belt retractor, for example in the region of the B-pillar is known from the prior art.
  • the vehicle occupant restraint system may comprise a third retaining element, which is designed as a side airbag module, in particular as a thorax airbag module or a head-thorax airbag module.
  • a side airbag module is usually arranged on a vehicle door side facing the vehicle seat in the backrest.
  • the side airbag of the third retaining element can also be used in a restraint situation to guide the vehicle occupant to the absorption chamber of the airbag of the first retaining element.
  • the side airbag can for example be used as a guide when the vehicle seat is rotated about its vertical axis or in a triggered by an oblique frontal impact restraint situation.
  • the vehicle occupant restraint system may include further retaining elements known in the art.
  • further retaining elements can be designed as retaining elements arranged on the vehicle structure, such as front airbag modules arranged in the steering wheel or dashboard, knee airbag modules arranged in the footwell and / or head-side airbag modules arranged in the headliner (so-called curtain airbags).
  • the vehicle occupant restraint system may include another retention member configured as an energy absorbing member.
  • the energy absorbing member may include, for example, a rotary displacement member and / or a linear displacement member.
  • the energy absorption element, in particular the rotary displacement element may, for example, comprise an embodiment of a torsion bar.
  • the vehicle occupant restraint system comprises a control device or may be in operative connection with a control device of the vehicle, in particular an airbag control.
  • the control device may comprise a sensor element for determining the position of the vehicle seat and / or vehicle occupant-related parameters or may be in operative connection with such a sensor element.
  • the control device can preferably activate the first retaining element and / or one or more of the further retaining elements depending on a position of the vehicle seat in a restraint situation.
  • control device of the vehicle occupant restraint system may be arranged between a first situation in which the vehicle seat is in a position with the vehicle occupant in the region of a standard position, and a second situation in which the vehicle seat with the vehicle occupant in a comfort position outside the standard position differ.
  • the area of the standard position describes in particular a position or a position range of the vehicle seat in which restraint systems fixedly arranged in the vehicle structure and known from the prior art can ensure adequate protection.
  • the comfort position describes a position of the vehicle seat which is outside this standard range. For example, and not conclusively, this may represent a position of the vehicle seat in which the vehicle seat is moved far back, is rotated about a vertical axis and / or the backrest is strongly tilted backwards.
  • the second retaining element in particular a tensioning element of the safety belt system of the second retaining element, and depending on the cause of the retention situation, the third retaining element and / or the other retaining elements activated by the control device.
  • the gas bag module according to the invention of the first retaining element is not activated in this embodiment in the presence of the first situation.
  • At least the gas bag module of the first retaining element is activated by the control device. Furthermore, the control device preferably also activates the safety belt system, in particular the tensioning element of the safety belt system, of the second retaining element.
  • the side airbag module of the third retaining element can be activated depending on the position of the vehicle seat and / or the loss event triggering the restraint situation.
  • the control device in the presence of the second situation, activates a front gas bag module of a further retaining element arranged in the steering wheel or the dashboard with a time delay.
  • the activation of the front airbag module preferably takes place with a time delay, so that initially the airbag of the airbag module of the first retaining element can deploy.
  • the front airbag of the further retaining element serves in particular as an additional supporting element.
  • the gas bag module of the first retaining element according to the invention replaces the front gas bag modules arranged in the steering wheel or the dashboard.
  • the gas bag module of the first retaining element is activated by the control device preferably in any restraint situation in which the first retaining element and / or a further retaining element arranged in the steering wheel or the dashboard is activated in a previously described vehicle occupant restraint system.
  • FIG. 2 a) and b) show a schematic plan view of the vehicle occupant
  • Restraint system with a second embodiment of a gas bag module according to the invention, a) immediately after the gas bag module has been filled and b) towards the end of a restraint situation;
  • FIG. 4 a) and b) show a schematic plan view of the vehicle occupant restraint system according to FIG. 3.
  • FIGS. 1 and 2 show a first embodiment of a vehicle occupant restraint system 20 according to the invention.
  • the illustrated vehicle occupant restraint system 20 comprises a first retaining element which is designed as a first embodiment of a gas bag module 2 according to the invention.
  • the illustrated vehicle occupant restraint system 20 further includes a second retention member configured as a seat belt system with a seat belt 34.
  • the illustrated safety belt system is designed as a seat-integrated safety belt system, in which preferably all components are arranged on the structure of the vehicle seat 10.
  • the illustrated vehicle occupant restraint system 20 includes a third restraining element that may be used as a side air bag module 36 having a thorax Airbag 38, which is shown in dashed lines in Figures 1 a) and 2a) is formed.
  • the gas bag module 2 comprises a gas bag 12 with two chambers 14 and 16.
  • a first chamber of the gas bag 12 is designed as a support chamber 14.
  • the second chamber of the gas bag is designed as an absorption chamber 16.
  • the gas bag module 2 is arranged in the backrest 30 of the vehicle seat 10 in a side facing the vehicle interior side cheek 32 of the backrest.
  • the gas bag 12 engages the vehicle occupant 4 in the unfolded and filled state such that the absorption chamber 16 with the vehicle occupant contact wall 18 is arranged in front of the upper body 8 and the head 6 of the vehicle occupant 4.
  • the vehicle occupant near outer wall portion 22 and the vehicle occupant remote outer wall portion 24 are concavely curved towards the vehicle occupant 4.
  • the support chamber 14 is formed boomerangförmig in plan view. The first end is located in the region of the gas bag module housing of the gas bag module 2 on the side facing the vehicle interior side of the vehicle seat.
  • the other end of the support chamber 14 is located in front of the vehicle door 40 directed side of the upper body 8 of the vehicle occupant 4, see Figure 2b).
  • the absorption chamber 16 is arranged between the upper body 8 and the head 4 of the vehicle occupant 4 and the vehicle-occupant outer wall portion 22.
  • the absorption chamber 16 has in the illustrated embodiment a convex to the vehicle occupant 4 curved shape.
  • the absorption chamber is formed by a patch on the vehicle near the outer wall portion 22 of the support chamber 14 and attached to the vehicle near the outer wall portion 22 of the support chamber 14 attached fabric layer.
  • the vehicle occupant contact wall 18 forms the vehicle occupant near outer wall portion of the absorption chamber 16.
  • the vehicle occupant outer wall portion of the absorption chamber 16 is formed by the portion of the vehicle near the outer wall portion 22 of the support chamber 14, of the patch, the vehicle occupant Contact wall 18 forming fabric layer is spanned. This subregion also forms the separating layer 26 between the support chamber 14 and the absorption chamber 16.
  • the support chamber 14 and the absorption chamber 16 are fluidly connected via an overflow valve 42.
  • the overflow valve 42 is arranged in the region of the separating layer 26.
  • the filling of an attached absorption chamber 16 can also take place via an overflow opening.
  • the separating layer 26 may be at least partially gas-permeable in such a way that the absorption chamber 16 is filled via a gas flowing through the T 26 26 flowing gas.
  • the outer contour of the absorption chamber 16 may differ in other embodiments of the illustrated convex shape.
  • the absorption chamber may also consist of several sub-chambers or have a plurality of sub-chambers.
  • the absorption chamber 16 has a lower rigidity than the support chamber 14. This may allow the absorption chamber 16 to be compressed or compressed in a restraint situation by the vehicle occupant. As a result of the absorption chamber 16, a damped and limited forward displacement of the vehicle occupant 4, in particular of the head 6 and of the upper body 8, is permitted in a restraint situation in which energy is also absorbed.
  • the contour of the vehicle occupant contact wall 18 is shown schematically by the dashed line, which adjusts towards the end of the restraint operation.
  • the absorption chamber 16 also has a blow-off valve 44 in the illustrated embodiment, see FIG. 2b). By the blow-off valve 44, the filling gas can be blown when immersing the vehicle occupant 4 in the absorption chamber 16.
  • the higher rigidity of the support chamber 14 compared to the absorption chamber 16 causes the support chamber 14 to move forward Vehicle occupants 4 limited.
  • the support chamber 14 acts as an abutment which can stabilize the forces acting on the airbag 12 during the immersion of the vehicle occupant 4 and thereby stabilizes the airbag 12 of the airbag module 12.
  • the support chamber 14 only permits a slight forward movement and change in shape of the gas bag 12 due to the high rigidity.
  • the gas bag module 2 of the first retaining element and the safety belt system of the second retaining element are activated.
  • the safety belt 34 of the safety belt system is first tightened by a tensioning element.
  • a tensioning element acting on the belt retractor and / or an end fitting tensioner and / or a lock tensioner, which are known from the prior art.
  • FIGS. 1 a) and 2 a) illustrate a situation in which the gas bag 12 is completely filled with gas and the seat belt is tightened.
  • the side airbag module 36 of the third retaining element can additionally be activated, in particular depending on the damage event triggering the restraint situation or the position of the vehicle seat.
  • a withdrawal of the safety belt 34 and thereby a forward displacement of the upper body 8 and the head 6 of the vehicle occupant 4 can be permitted via a belt force limiting element.
  • a belt force limiting element By the belt force limiting element while energy is absorbed.
  • 16 energy is absorbed when immersing the vehicle occupant 4 in the absorption chamber.
  • the internal pressure of the Absorption chamber 16 is controlled via a blow-off valve 42, in particular that allows a blow-out of gas from the absorption chamber 16 when the vehicle occupant 4 strikes.
  • the support chamber 14 acts as an abutment for the forces acting upon immersion of the vehicle occupant 4 in the absorption chamber 16 and prevents dodge of the gas bag 12 when the vehicle occupant 4 impinges on the absorption chamber 16.
  • Figures 1 b) and 2b) show the vehicle occupant restraint system 20 at the time in which the head 6 of the vehicle occupant 4 is immersed in the absorption chamber 16 and a permitted by the Gurtkraftbegrenzungselement extract of the safety belt 34 is done.
  • FIGS. 3 and 4 show a further embodiment of the vehicle occupant restraint system 20.
  • this only has another embodiment of an airbag module 2 according to the invention. In the following, therefore, essentially only the differences of the embodiments will be described.
  • the gas bag module 2 is likewise arranged in a side wall 32 of the backrest 30 of the vehicle seat 10 directed towards the vehicle interior and partially surrounds the upper body 8 and the head 6 of the vehicle occupant 4.
  • the absorption chamber is also formed by a patch on the support chamber 14 and attached to the vehicle near the outer wall portion 22 fabric layer.
  • the gas bag 12 of the gas bag module 2 of FIGS. 3 and 4 has no flow connection between the absorption chamber 16 and the support chamber 14.
  • the absorption chamber 16 is filled in a restraint situation via a filling channel 28 with gas.
  • the absorption chamber 16 and the support chamber 14 are filled in the illustrated embodiment via separate gas sources, in particular separate gas generators with gas.
  • the support chamber 14 also has a higher rigidity than the absorption chamber 16 and acts as an abutment that can stabilize the forces acting on the airbag 12 during immersion of the vehicle occupant 4 in the absorption chamber 16 forces.
  • the absorption chamber 16 and the support chamber 14 may be filled with gas by the same gas source.
  • the absorption chamber 16 may include a blow-off valve.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un module de coussin gonflable de sécurité ainsi qu'un système de retenue pour passager de véhicule. L'invention concerne un module (2) de coussin gonflable de sécurité pour un système de retenue pour passager de véhicule (20) servant à protéger un passager (4) de véhicule, qui est prévu pour être monté sur un siège (6) de véhicule et qui comporte un coussin gonflable de sécurité (12) pourvu d'au moins deux chambres (14, 16) séparées. Une première chambre du coussin gonflable de sécurité (12) est réalisée sous la forme d'une chambre d'appui (14), et une deuxième chambre du coussin gonflable de sécurité (12) est réalisée sous la forme d'une chambre d'absorption (16) pourvue d'une paroi de contact (18) avec un passager de véhicule. Dans un état déployé et rempli, une section de paroi extérieure (22), située à proximité d'un passager de véhicule, de la chambre d'appui (14) du coussin gonflable de sécurité (12) s'étend au moins en partie avec une incurvation concave de sorte que le coussin gonflable de sécurité (12) est disposé au moins en partie latéralement et devant le passager (4) de véhicule et entoure au moins en partie le passager (4) de véhicule. L'invention concerne par ailleurs un système de retenue (20) pour passager de véhicule servant à protéger un passager (4) de véhicule, pourvu d'au moins un élément de retenue. Un premier élément de retenue est réalisé sous la forme d'un module (2) de coussin gonflable de sécurité selon l'invention, et le module (2) de coussin gonflable de sécurité est disposé sur un dossier (30) d'un siège (10) de véhicule.
PCT/EP2019/054029 2018-02-27 2019-02-19 Module de coussin gonflable de sécurité et système de retenue pour passager de véhicule WO2019166268A1 (fr)

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Application Number Priority Date Filing Date Title
DE102018104392.9A DE102018104392A1 (de) 2018-02-27 2018-02-27 Gassackmodul sowie Fahrzeuginsassen-Rückhaltesystem
DE102018104392.9 2018-02-27

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WO2019166268A1 true WO2019166268A1 (fr) 2019-09-06

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WO2022008403A1 (fr) * 2020-07-10 2022-01-13 Zf Automotive Germany Gmbh Système de retenue d'occupant de véhicule
US11718260B2 (en) 2021-07-07 2023-08-08 Toyota Jidosha Kabushiki Kaisha Vehicle occupant protection device
US11738706B2 (en) 2021-06-09 2023-08-29 Toyota Jidosha Kabushiki Kaisha Seat-mounted airbag device
US11745686B2 (en) 2021-10-08 2023-09-05 Toyota Jidosha Kabushiki Kaisha Seat-mounted airbag device
US11745693B2 (en) 2021-06-09 2023-09-05 Toyota Jidosha Kabushiki Kaisha Seat-mounted airbag device
US11760297B2 (en) 2021-08-27 2023-09-19 Toyota Jidosha Kabushiki Kaisha Vehicle airbag device
DE102023106465A1 (de) 2022-04-26 2023-10-26 Toyota Jidosha Kabushiki Kaisha Sitzinterne Airbagvorrichtung
US11904790B2 (en) 2022-04-26 2024-02-20 Toyota Jidosha Kabushiki Kaisha In-seat airbag device
JP7507665B2 (ja) 2020-11-18 2024-06-28 Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ合同会社 エアバッグ及びエアバッグ装置
US12043200B2 (en) 2022-03-23 2024-07-23 Toyota Jidosha Kabushiki Kaisha In-seat airbag device

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DE102020107134A1 (de) 2020-03-16 2021-09-16 Dalphi Metal Espana, S.A. Gassackmodul und fahrzeuginsassen-rückhaltesystem
KR20210139092A (ko) * 2020-05-13 2021-11-22 현대모비스 주식회사 차량용 시트 에어백장치
KR20210139091A (ko) 2020-05-13 2021-11-22 현대모비스 주식회사 차량용 시트 에어백장치
DE102020118338A1 (de) * 2020-07-10 2022-01-13 Zf Automotive Germany Gmbh Fahrzeuginsassenrückhaltesystem
DE102020118339A1 (de) * 2020-07-10 2022-01-13 Zf Automotive Germany Gmbh Fahrzeuginsassenrückhaltesystem
DE102020212537A1 (de) 2020-10-05 2022-04-07 Joyson Safety Systems Germany Gmbh Seitengassackanordnung für ein Fahrzeuginsassen-Rückhaltesystem

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WO2022008403A1 (fr) * 2020-07-10 2022-01-13 Zf Automotive Germany Gmbh Système de retenue d'occupant de véhicule
JP7507665B2 (ja) 2020-11-18 2024-06-28 Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ合同会社 エアバッグ及びエアバッグ装置
US11738706B2 (en) 2021-06-09 2023-08-29 Toyota Jidosha Kabushiki Kaisha Seat-mounted airbag device
US11745693B2 (en) 2021-06-09 2023-09-05 Toyota Jidosha Kabushiki Kaisha Seat-mounted airbag device
US11718260B2 (en) 2021-07-07 2023-08-08 Toyota Jidosha Kabushiki Kaisha Vehicle occupant protection device
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US11745686B2 (en) 2021-10-08 2023-09-05 Toyota Jidosha Kabushiki Kaisha Seat-mounted airbag device
US12043200B2 (en) 2022-03-23 2024-07-23 Toyota Jidosha Kabushiki Kaisha In-seat airbag device
DE102023106465A1 (de) 2022-04-26 2023-10-26 Toyota Jidosha Kabushiki Kaisha Sitzinterne Airbagvorrichtung
US12017602B2 (en) 2022-04-26 2024-06-25 Toyota Jidosha Kabushiki Kaisha In-seat airbag device
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