U.S. patent application number 16/042589 was filed with the patent office on 2020-01-23 for center console restraint system.
This patent application is currently assigned to Ford Global Technologies, LLC. The applicant listed for this patent is Ford Global Technologies, LLC. Invention is credited to Matthew B. MAKOWSKI, Deepak PATEL, Tahmidur RAHMAN.
Application Number | 20200023802 16/042589 |
Document ID | / |
Family ID | 69148012 |
Filed Date | 2020-01-23 |
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United States Patent
Application |
20200023802 |
Kind Code |
A1 |
MAKOWSKI; Matthew B. ; et
al. |
January 23, 2020 |
CENTER CONSOLE RESTRAINT SYSTEM
Abstract
A restraint system includes a center console and an airbag
inflatable upwardly from the center console. The airbag includes an
internal panel defining two chambers. The internal panel includes a
plurality of tubes, and each tube includes an opening at which that
tube terminates. The openings are proximate a top of the airbag and
open to the chambers.
Inventors: |
MAKOWSKI; Matthew B.;
(Northville, MI) ; PATEL; Deepak; (Canton, MI)
; RAHMAN; Tahmidur; (Canton, MI) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ford Global Technologies, LLC |
Dearborn |
MI |
US |
|
|
Assignee: |
Ford Global Technologies,
LLC
Dearborn
MI
|
Family ID: |
69148012 |
Appl. No.: |
16/042589 |
Filed: |
July 23, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B60R 21/2346 20130101;
B60R 21/231 20130101; B60R 21/233 20130101; B60R 2021/23324
20130101; B60R 2021/23161 20130101; B60R 21/20 20130101 |
International
Class: |
B60R 21/233 20060101
B60R021/233; B60R 21/20 20060101 B60R021/20; B60R 21/231 20060101
B60R021/231 |
Claims
1. A restraint system comprising: a center console; and an airbag
inflatable upwardly from the center console; wherein the airbag
includes an internal panel defining two chambers, the internal
panel including a plurality of tubes, each tube including an
opening at which that tube terminates, the openings proximate a top
of the airbag and open to the chambers.
2. The restraint system of claim 1, wherein the center console
defines a forward direction, and the internal panel extends along
the forward direction from a front of the airbag to a rear of the
airbag.
3. The restraint system of claim 1, wherein the plurality of tubes
includes at least three tubes.
4. The restraint system of claim 1, wherein the tubes are parallel
to each other when the airbag is in an inflated position.
5. The restraint system of claim 1, wherein the internal panel
extends upwardly to a top edge proximate the top of the airbag when
the airbag is in an inflated position.
6. The restraint system of claim 5, wherein the openings of the
tubes are at the top edge of the internal panel.
7. The restraint system of claim 1, further comprising an inflator
fluidly connected to the tubes, wherein the chambers are fluidly
connected to the inflator only via the tubes.
8. The restraint system of claim 1, wherein the tubes are spaced
from each other.
9. The restraint system of claim 8, wherein the internal panel
includes at least one uninflatable region between the tubes.
10. The restraint system of claim 9, wherein the center console
defines a forward direction, the internal panel includes a front
uninflatable region between a forwardmost tube of the tubes and a
front of the airbag, and the internal panel includes a rear
uninflatable region between a rearmost tube of the tubes and a rear
of the airbag.
11. The restraint system of claim 1, wherein the internal panel
includes two sheets sewn together parallel to each other, and the
two sheets define the tubes.
12. The restraint system of claim 11, wherein the internal panel
includes stitching sewing the two sheets together and defining the
tubes.
13. The restraint system of claim 11, wherein the center console
defines a forward direction, the sheets are inner sheets, the
airbag includes two outer sheets, and the two outer sheets and the
two inner sheets are sewn together along a front of the airbag and
along a rear of the airbag.
14. The restraint system of claim 13, wherein the two outer sheets
and the two inner sheets are sewn together along a bottom of the
airbag.
15. The restraint system of claim 1, wherein the center console
includes two hinged doors openable from a closed position, and the
doors in the closed position conceal the airbag in an uninflated
position.
16. The restraint system of claim 15, wherein the center console
includes a seam between edges of the doors in the closed
position.
17. The restraint system of claim 16, wherein the seam extends in a
longitudinal direction relative to the center console.
18. The restraint system of claim 15, further comprising two seats
positioned laterally relative to the center console, wherein the
doors are openable to an open position in which each door contacts
one of the seats.
19. The restraint system of claim 1, wherein the center console
includes a lid, and the airbag in an uninflated position is
disposed in the lid.
20. The restraint system of claim 19, wherein the center console
includes a storage compartment, and the lid is rotatable between a
closed position covering the storage compartment and an open
position revealing the storage compartment.
Description
BACKGROUND
[0001] Vehicles are equipped with airbags. In the event of an
impact, an inflator activates and provides inflation medium to the
airbags, and the airbags pressurize and act as cushions for
occupants during the impact. The airbags are located at various
fixed positions in passenger cabins of vehicles. Vehicles typically
include a driver airbag mounted in the steering wheel, a passenger
airbag mounted in the dashboard in a vehicle-forward direction from
the front passenger seat, and side air curtains mounted in the roof
rails.
BRIEF DESCRIPTION OF THE DRAWINGS
[0002] FIG. 1 is a perspective view of a portion of a passenger
cabin of a vehicle including seats and a center console.
[0003] FIG. 2 is a side view of the center console.
[0004] FIG. 3 is a front cross-sectional view of the center console
with doors in a closed position.
[0005] FIG. 4 is a front view of the center console with the doors
in an open position and an airbag in an inflated position.
[0006] FIG. 5 is a side view of the airbag in the inflated
position.
[0007] FIG. 6 is a top cross-sectional view of the airbag in the
inflated position.
[0008] FIG. 7 is a block diagram of a control system for the
airbag.
DETAILED DESCRIPTION
[0009] A restraint system includes a center console and an airbag
inflatable upwardly from the center console. The airbag includes an
internal panel defining two chambers. The internal panel includes a
plurality of tubes, and each tube includes an opening at which that
tube terminates. The openings are proximate a top of the airbag and
open to the chambers.
[0010] The center console may define a forward direction, and the
internal panel may extend along the forward direction from a front
of the airbag to a rear of the airbag.
[0011] The plurality of tubes may include at least three tubes.
[0012] The tubes may be parallel to each other when the airbag is
in an inflated position.
[0013] The internal panel may extend upwardly to a top edge
proximate the top of the airbag when the airbag is in an inflated
position. The openings of the tubes may be at the top edge of the
internal panel.
[0014] The restraint system may further include an inflator fluidly
connected to the tubes, and the chambers may be fluidly connected
to the inflator only via the tubes.
[0015] The tubes may be spaced from each other. The internal panel
may include at least one uninflatable region between the tubes. The
center console may define a forward direction, the internal panel
may include a front uninflatable region between a forwardmost tube
of the tubes and a front of the airbag, and the internal panel may
include a rear uninflatable region between a rearmost tube of the
tubes and a rear of the airbag.
[0016] The internal panel may include two sheets sewn together
parallel to each other, and the two sheets may define the tubes.
The internal panel may include stitching sewing the two sheets
together and defining the tubes.
[0017] The center console may define a forward direction, the
sheets may be inner sheets, the airbag may include two outer
sheets, and the two outer sheets and the two inner sheets may be
sewn together along a front of the airbag and along a rear of the
airbag. The two outer sheets and the two inner sheets may be sewn
together along a bottom of the airbag.
[0018] The center console may include two hinged doors openable
from a closed position, and the doors in the closed position may
conceal the airbag in an uninflated position. The center console
may include a seam between edges of the doors in the closed
position. The seam may extend in a longitudinal direction relative
to the center console.
[0019] The restraint system may further include two seats
positioned laterally relative to the center console, and the doors
may be openable to an open position in which each door contacts one
of the seats.
[0020] The center console may include a lid, and the airbag in an
uninflated position may be disposed in the lid. The center console
may include a storage compartment, and the lid may be rotatable
between a closed position covering the storage compartment and an
open position revealing the storage compartment.
[0021] A restraint system 30 for a vehicle 32 includes a center
console 34 and an airbag 36 inflatable upwardly from the center
console 34. The airbag 36 includes an internal panel 38 defining
two chambers 40. The internal panel 38 includes a plurality of
tubes 42, and each tube 42 includes an opening 44 at which that
tube 42 terminates. The openings 44 are proximate a top 46 of the
airbag 36 and open to the chambers 40.
[0022] The restraint system 30 provides for quick deployment and
protection of occupants during a side impact. Sending the inflation
medium through the tubes 42 causes the airbag 36 to expand
vertically more quickly, allowing the airbag 36 to be in the proper
position for an impact. The position of the airbag 36 can protect
occupants from impacting each other. Furthermore, the restraint
system 30 provides for convenient packaging, with the airbag 36
stored in the center console 34 when uninflated.
[0023] With reference to FIG. 1, the vehicle 32 includes a
passenger cabin 48 to house occupants, if any, of the vehicle 32.
The passenger cabin 48 includes one or more front seats 50 disposed
at a front of the passenger cabin 48 and one or more back seats
(not shown) disposed behind the front seats 50. The passenger cabin
48 may also include third-row seats (not shown) at a rear of the
passenger cabin 48. Two front seats 50 may be positioned laterally
relative to the center console 34, i.e., aligned in a cross-vehicle
direction with the center console 34. In FIG. 1, the front seats 50
are shown to be bucket seats, but the front seats 50 may be other
types. The position and orientation of the front seats 50 and
components thereof may be adjustable by an occupant.
[0024] Each front seat 50 may include a seat back 52, a seat bottom
54, and a headrest 56. The headrest 56 may be supported by the seat
back 52 and may be stationary or movable relative to the seat back
52. The seat back 52 may be supported by the seat bottom 54 and may
be stationary or movable relative to the seat bottom 54. The seat
back 52, the seat bottom 54, and/or the headrest 56 may be
adjustable in multiple degrees of freedom. Specifically, the seat
back 52, the seat bottom 54, and/or the headrest 56 may themselves
be adjustable, in other words, adjustable components within the
seat back 52, the seat bottom 54, and/or the headrest 56, and/or
may be adjustable relative to each other.
[0025] The center console 34 is disposed between two front seats
50. The center console 34 is adjacent each of the front seats 50,
i.e., nothing is disposed between each of the front seats 50 and
the center console 34. The center console 34 defines a forward
direction. The forward direction is the direction of forward travel
of the vehicle 32. The front seats 50 face in the forward
direction.
[0026] With reference to FIGS. 2 and 3, the center console 34 may
be formed of a rigid material, e.g., plastic. The center console 34
includes a fixed portion 58 that is fixed relative to the passenger
cabin 48. The center console 34, specifically the fixed portion 58,
may have sides 60 that face laterally, i.e., face in a
cross-vehicle direction. The sides 60 are adjacent the front seats
50, and the front seats 50 may be spaced from or may abut the sides
60.
[0027] The center console 34 includes a storage compartment 62 and
a lid 64. The storage compartment 62 is accessible to occupants for
placing items inside. The storage compartment 62 may be disposed
inside the fixed portion 58 and enclosed above by the lid 64. The
lid 64 is rotatable between a closed position covering the storage
compartment 62 and an open position revealing the storage
compartment 62. The lid 64 may be rotatable about a lid hinge 66.
The lid hinge 66 connects the lid 64 and the fixed portion 58. The
lid hinge 66 may define an axis of rotation in a cross-vehicle
direction. The lid 64 may rotate up and backwards about the axis of
rotation from the closed position to the open position.
[0028] With reference to FIG. 3, the center console 34 includes two
hinged doors 68 openable from a closed position. The doors 68 in
the closed position conceal the airbag 36 in an uninflated
position. The lid 64 includes the doors 68 and a bottom panel 70.
The airbag 36 is supported by the bottom panel 70, and the airbag
36 is enclosed by the doors 68 and the bottom panel 70. The center
console 34, specifically the lid 64, includes a seam 72 between
edges of the doors 68 in the closed position. The seam 72 may be a
detachment of the doors 68 from each other, or the seam 72 may link
the doors 68 and be frangible from inflation of the airbag 36. The
seam 72 may present a continuous surface to view by occupants.
[0029] With reference to FIG. 4, the doors 68 are openable from the
closed position to an open position in which each door 68 contacts
one of the front seats 50. The doors 68 are rotated about door
hinges 74. The door hinges 74 connect the doors 68 and the bottom
panel 70. The door hinges 74 may define an axis of rotation
extending in a vehicle-forward direction. Each door hinge 74 may
have a first hinge portion fixed relative to the fixed portion 58,
a second hinge portion fixed relative to the lid 64, and a pin
connecting the first hinge portion and the second hinge portion.
The pin may allow rotational motion of the second hinge portion
relative to the first hinge portion. Alternatively, the door hinges
74 may be a comparatively thinner portion of the lid 64 that
deforms in response to the force of the airbag 36 inflating.
[0030] An inflator 76 may be supported by the bottom panel 70 of
the lid 64 and connected to the airbag 36. Upon receiving a signal
from, e.g., a controller 78, the inflator 76 may inflate the airbag
36 with an inflatable medium, such as a gas. The inflator 76 may
be, for example, a pyrotechnic inflator that uses a chemical
reaction to drive inflation medium to the airbag 36. The inflator
76 may be of any suitable type, for example, a cold-gas
inflator.
[0031] With reference to FIGS. 3 and 4, the airbag 36 is inflatable
upwardly from the center console 34 from the uninflated position to
an inflated position. The airbag 36 in the uninflated position is
disposed in the lid 64. The airbag 36 in the inflated position
extends directly between the seat backs 52 of the front seats 50
and directly between volumes that would be occupied by torsos of
occupants of 50th-percentile stature sitting in the front seats
50.
[0032] With reference to FIGS. 4-6, the airbag 36 in the inflated
position extends from a front 80 to a rear 82 and from the top 46
to a bottom 84. The front 80 of the airbag 36 is the forwardmost
portion of the airbag 36 relative to the center console 34; the
rear 82 of the airbag 36 is the rearmost portion of the airbag 36
relative to the center console 34; the top 46 of the airbag 36 is
the portion extending the farthest from the center console 34; and
the bottom 84 of the airbag 36 is the portion closest to the center
console 34. The airbag 36 in the inflated position may be longer in
the forward direction than in the upward direction and longer in
the forward direction than in the lateral direction. The airbag 36
in the inflated position may be longer in the upward direction than
in the lateral direction.
[0033] The airbag 36 includes the internal panel 38. The internal
panel 38 extends along the forward direction from the front 80 of
the airbag 36 to the rear 82 of the airbag 36. The internal panel
38 extends from the bottom 84 of the airbag 36 to a top edge 86
proximate the top 46 of the airbag 36. The top edge 86 is spaced
from the top 46 of the airbag 36. The internal panel 38 is internal
to the airbag 36; in other words, the internal panel 38 extends
through a volume enclosed by the airbag 36.
[0034] The internal panel 38 defines the two chambers 40; in other
words, the internal panel 38 separates the volume inside the airbag
36 in the inflated position into the two chambers 40. The internal
panel 38 extends between the chambers 40. The chambers 40 are
fluidly connected only above the top edge 86 of the internal panel
38.
[0035] With reference to FIG. 5, the internal panel 38 includes a
plurality of tubes 42, e.g., at least three tubes 42. When the
airbag 36 is in the inflated position, the tubes 42 are elongated
vertically and parallel to each other, and the tubes 42 are spaced
from each other. The tubes 42 may be fluidly connected to each
other near the bottom 84 of the airbag 36 via a connecting portion
88, and the inflator 76 may be fluidly connected to the tubes
42.
[0036] Each tube 42 is elongated from the connecting portion 88
adjacent the bottom 84 of the airbag 36 to the respective opening
44. The connecting portion 88 is positioned to receive inflation
medium from the inflator 76. Each tube 42 terminates at the
respective opening 44. The openings 44 are at the top edge 86 of
the internal panel 38 and are proximate the top 46 of the airbag
36. The openings 44 are open to the chambers 40.
[0037] With reference to FIGS. 5 and 6, the internal panel 38
includes a plurality of uninflatable regions 90, 92, 94 between and
connecting the tubes 42. The uninflatable regions 90, 92, 94 divide
the chambers 40 from each other and do not inflate. The
uninflatable regions 90, 92, 94 include a front uninflatable region
90 between a forwardmost of the tubes 42 and the front 80 of the
airbag 36, a rear uninflatable region 92 between a rearmost of the
tubes 42 and the rear 82 of the airbag 36, and one or more
intermediate uninflatable regions 94 between respective tubes
42.
[0038] With reference to FIGS. 4-6, when the inflator 76
discharges, the inflation medium travels into the connecting
portion 88, then upward through the tubes 42, then out the openings
44 proximate the top 46 of the airbag 36, and then downward to the
chambers 40. The chambers 40 are fluidly connected to the inflator
76 only via the tubes 42; in other words, the path for inflation
medium to enter the chambers 40 passes through the tubes 42.
[0039] With reference to FIG. 6, the airbag 36 includes two outer
sheets 96, two inner sheets 98, and stitching 100 connecting the
sheets 96, 98 together. The outer sheets 96 and inner sheets 98 are
sewn together by the stitching 100 along the front 80, rear 82, and
bottom 84 of the airbag 36. The outer sheets 96 are sewn together
by the stitching 100 along the top 46 of the airbag 36, and the
inner sheets 98 are spaced from the top 46 of the airbag 36. The
two inner sheets 98 are sewn together by the stitching 100 parallel
to each other to form the internal panel 38. The inner sheets 98
are sewn together to define the tubes 42. The stitching 100 extends
along the tubes 42 and the connecting portion 88, and the stitching
100 divides the tubes 42 and the connecting portion 88 from the
uninflatable regions 90, 92, 94.
[0040] The sheets 96, 98 of the airbag 36 may be formed of any
suitable airbag material, for example, a woven polymer. For
example, the sheets 96, 98 may be formed of woven nylon yarn, for
example, nylon 6-6. Other suitable examples include polyether ether
ketone (PEEK), polyetherketoneketone (PEKK), polyester, or any
other suitable polymer. The woven polymer may include a coating,
such as silicone, neoprene, urethane, and so on. For example, the
coating may be polyorgano siloxane.
[0041] With reference to FIG. 7, an impact sensor 102 may be in
communication with the controller 78. The impact sensor 102 is
adapted to detect an impact to the vehicle 32. The impact sensor
102 may be of any suitable type, for example, post-contact sensors
such as linear or angular accelerometers, gyroscopes, pressure
sensors, and contact switches; and pre-impact sensors such as
radar, lidar, and vision-sensing systems. The vision systems may
include one or more cameras, CCD image sensors, CMOS image sensors,
etc. The impact sensor 102 may be located at numerous points in or
on the vehicle 32.
[0042] The controller 78 is a microprocessor-based controller. The
controller 78 includes a processor, memory, etc. The memory of the
controller 78 includes memory for storing instructions executable
by the processor as well as for electronically storing data and/or
databases. For example, the controller 78 may be a restraint
control module that may control other airbags, pretensioners for
seatbelts, etc.
[0043] The controller 78 may transmit and receive data through a
communications network 104 such as a controller area network (CAN)
bus, Ethernet, WiFi, Local Interconnect Network (LIN), onboard
diagnostics connector (OBD-II), and/or by any other wired or
wireless communications network. The controller 78 may be
communicatively coupled to the inflator 76, the impact sensor 102,
and other components via the communications network 104.
[0044] The controller 78 may be programmed to activate the inflator
76 in response to an impact to the vehicle 32. Activating the
inflator 76 may be based on an angle of the impact. For example,
the controller 78 may be programmed to activate the inflator 76 in
response to a side impact and to maintain the airbag 36 in the
uninflated position in response to a frontal impact or an oblique
impact.
[0045] In the event of a side impact to the vehicle 32, the impact
sensor 102 may detect the impact and transmit a signal through the
communications network 104 to the controller 78. The controller 78
may transmit a signal through the communications network 104 to the
inflator 76. The inflator 76 may discharge and send inflation
medium into the connecting portion 88 of the airbag 36. The
inflation medium travels through the connecting portion 88 and then
through the tubes 42, which extends the airbag 36 vertically
between occupants of the front seats 50. The vertical inflation of
the airbag 36 pushes open the doors 68 against the seat backs 52 of
the front seats 50. Because the combined cross-sectional area of
the tubes 42 is less than the cross-sectional area of the airbag
36, as best seen in FIG. 6, less inflation medium is needed to
vertically extend the airbag 36. Once the airbag 36 has extended
vertically, the inflation medium fills in the chambers 40,
expanding the airbag 36 laterally. The airbag 36 in the inflated
position may cushion the occupants from impacting each other. The
doors 68 are held in place from opening wider by the front seats
50, and the doors 68 may serve as reaction surfaces when an
occupant is pushed against the airbag 36.
[0046] The disclosure has been described in an illustrative manner,
and it is to be understood that the terminology which has been used
is intended to be in the nature of words of description rather than
of limitation. Many modifications and variations of the present
disclosure are possible in light of the above teachings, and the
disclosure may be practiced otherwise than as specifically
described.
* * * * *