U.S. patent application number 17/167665 was filed with the patent office on 2022-08-04 for airbag assembly supported by roof mounted pivotable base.
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 S.M. Iskander Farooq, Mohammad Omar Faruque, Dean M. Jaradi.
Application Number | 20220242358 17/167665 |
Document ID | / |
Family ID | |
Filed Date | 2022-08-04 |
United States Patent
Application |
20220242358 |
Kind Code |
A1 |
Farooq; S.M. Iskander ; et
al. |
August 4, 2022 |
AIRBAG ASSEMBLY SUPPORTED BY ROOF MOUNTED PIVOTABLE BASE
Abstract
A vehicle includes a floor defining a seating area. The vehicle
includes a roof above the floor. The vehicle includes a base
supported by the roof and pivotable from a stowed position at the
roof to a deployed position rearward of the seating area. The
vehicle includes an airbag supported by the base and inflatable
from an uninflated position to an inflated position that is forward
of the base toward the seating area.
Inventors: |
Farooq; S.M. Iskander;
(Novi, MI) ; Faruque; Mohammad Omar; (Ann Arbor,
MI) ; Jaradi; Dean M.; (Macomb, MI) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ford Global Technologies, LLC |
Dearborn |
MI |
US |
|
|
Assignee: |
Ford Global Technologies,
LLC
Dearborn
MI
|
Appl. No.: |
17/167665 |
Filed: |
February 4, 2021 |
International
Class: |
B60R 21/214 20060101
B60R021/214; B60R 21/232 20060101 B60R021/232; A61G 3/08 20060101
A61G003/08 |
Claims
1. A vehicle, comprising: a floor defining a seating area; a roof
above the floor; a base supported by the roof and pivotable from a
stowed position at the roof to a deployed position rearward of the
seating area; and an airbag in an uninflated position supported by
the base in the deployed position and inflatable from the
uninflated position to an inflated position that is forward of the
base toward the seating area.
2. The vehicle of claim 1, wherein the base in the deployed
position includes a proximate end at the roof and a distal end
spaced from the roof, the airbag in the uninflated position being
closer to the proximate end than the distal end.
3. The vehicle of claim 1, wherein the base defines an opening
sized to receive handles of a personal mobility device secured in
the seating area.
4. The vehicle of claim 1, further comprising an actuator that
moves the base from the stowed position to the deployed position
and from the deployed position to the stowed position.
5. The vehicle of claim 4, further comprising a computer having a
processor and memory storing instructions executable by the
processor to command the actuator to move the base in response to
detecting a personal mobility device in the seating area.
6. The vehicle of claim 4, further comprising a computer having a
processor and memory storing instructions executable by the
processor to inhibit the actuator from moving the base in response
to detecting an object in a path of the base.
7. The vehicle of claim 1, further comprising an inflator fixed to
the base and in fluid communication with the airbag.
8. The vehicle of claim 1, further comprising a brace connected to
the base and the roof.
9. The vehicle of claim 8, wherein the brace includes a first bar
and a second bar, the first bar connected to the second bar at a
hinge.
10. The vehicle of claim 9, wherein the first bar is connected to
the roof opposite the hinge and the second bar is connected to the
base opposite the hinge.
11. The vehicle of claim 8, wherein the brace extends transverse to
the roof and the base in the deployed position.
12. The vehicle of claim 8, wherein the brace extends rearward from
the base, away from the seating area, and toward the roof.
13. The vehicle of claim 1, further comprising a lock operatively
engaged with the base to selectively maintain the base in the
deployed position.
14. The vehicle of claim 1, further comprising a floor mount
configured to engage a personal mobility device within the seating
area.
15. The vehicle of claim 14, further comprising an attachment
assembly fixed to the base and configured to engage the personal
mobility device.
16. The vehicle of claim 1, wherein the airbag in the inflated
position is quarter-sphere shaped and sized to surround an occupant
seated in the seating area.
17. The vehicle of claim 1, further comprising a tether connected
to the airbag and the base.
18. The vehicle of claim 17, further comprising a second tether
connected to the airbag and the base, the tether and the second
tether extending along opposite sides of the airbag in the inflated
position.
19. A vehicle, comprising: a floor defining a seating area; a roof
above the floor; a base supported by the roof and pivotable from a
stowed position at the roof to a deployed position rearward of the
seating area, the base defining an opening sized to receive handles
of a personal mobility device secured in the seating area; and an
airbag supported by the base and inflatable from an uninflated
position to an inflated position that is forward of the base toward
the seating area.
20. A vehicle, comprising: a floor defining a seating area; a floor
mount configured to engage a personal mobility device within the
seating area; a roof above the floor; a base supported by the roof
and pivotable from a stowed position at the roof to a deployed
position rearward of the seating area; and an airbag supported by
the base and inflatable from an uninflated position to an inflated
position that is forward of the base toward the seating area.
Description
BACKGROUND
[0001] A vehicle may include one or more airbags deployable during
a vehicle impact to control kinematics of occupants inside the
vehicle during the impact. The airbag may be a component of an
airbag assembly including a housing supporting the airbag, and an
inflation device in communication with the airbag for inflating the
airbag from an uninflated position to an inflated position.
BRIEF DESCRIPTION OF THE DRAWINGS
[0002] FIG. 1 is a perspective view of a vehicle supporting a
personal mobility device and having an airbag supported by a base
in a stowed position.
[0003] FIG. 2 is a perspective view of the vehicle support a seat
and having the airbag supported by the base in the stowed
position.
[0004] FIG. 3 is a perspective view of the vehicle having the
airbag supported by the base in a deployed position.
[0005] FIG. 4 is a perspective view of the vehicle having the
airbag in an inflated position.
[0006] FIG. 5 is a block diagram of components of the vehicle.
DETAILED DESCRIPTION
[0007] A vehicle includes a floor defining a seating area. The
vehicle includes a roof above the floor. The vehicle includes a
base supported by the roof and pivotable from a stowed position at
the roof to a deployed position rearward of the seating area. The
vehicle includes an airbag supported by the base and inflatable
from an uninflated position to an inflated position that is forward
of the base toward the seating area.
[0008] The base in the deployed position may include a proximate
end at the roof and a distal end spaced from the roof, the airbag
in the uninflated position being closer to the proximate end than
the distal end.
[0009] The base may define an opening sized to receive handles of a
personal mobility device secured in the seating area.
[0010] The vehicle may include an actuator that moves the base from
the stowed position to the deployed position.
[0011] The vehicle may include a computer having a processor and
memory storing instructions executable by the processor to command
the actuator to move the base in response to detecting a personal
mobility device in the seating area.
[0012] The vehicle may include a computer having a processor and
memory storing instructions executable by the processor to inhibit
the actuator from moving the base in response to detecting an
object in a path of the base.
[0013] The vehicle may include an inflator fixed to the base and in
fluid communication with the airbag.
[0014] The vehicle may include a brace connected to the base and
the roof.
[0015] The brace may include a first bar and a second bar, the
first bar connected to the second bar at a hinge.
[0016] The first bar may be connected to the roof opposite the
hinge and the second bar is connected to the base opposite the
hinge.
[0017] The brace may extend transverse to the roof and the base in
the deployed position.
[0018] The brace may extend rearward from the base, away from the
seating area, and toward the roof.
[0019] The vehicle may include a lock operatively engaged with the
base to selectively maintain the base in the deployed position.
[0020] With reference to FIGS. 1-4, wherein like numerals indicate
like parts throughout the several views, a vehicle 20 includes a
floor 22 defining a seating area 24. The vehicle 20 includes a roof
26 above the floor 22. The vehicle 20 includes a base 28 supported
by the roof 26 and pivotable from a stowed position at the roof 26
(illustrated in FIGS. 1 and 2) to a deployed position rearward of
the seating area 24 (illustrated in FIGS. 3 and 4). The vehicle 20
includes an airbag 68 supported by the base 28 and inflatable from
an uninflated position (illustrated in FIG. 3) to an inflated
position that is forward of the base 28 toward the seating area 24
(illustrated in FIG. 4). The base 28 in the deployed position may
position and support the airbag 68 in the inflated position to
control kinematics of an occupant seated in the seating area 24,
e.g., on a seat 30 or a personal mobility device 32. The base 28 in
the stowed position may provide increased storage capability and/or
visibility within a passenger compartment 34 of the vehicle 20.
[0021] In the present description, relative vehicular orientations
and directions (by way of example, top, bottom, front, rear,
outboard, inboard, inward, outward, lateral, left, right, etc.) is
from the perspective of an occupant seated in the vehicle 20 facing
forward, e.g., toward a forward instrument panel and/or forward
windshield of the vehicle 20. The forward direction of the vehicle
20 is the direction of movement of the vehicle 20 when the vehicle
20 is engaged in forward drive with wheels of the vehicle 20
straight.
[0022] The vehicle 20 may be any suitable type of automobile, e.g.,
a passenger or commercial automobile such as a sedan, a coupe, a
truck, a sport utility, a crossover, a van, a minivan, a taxi, a
bus, etc. The vehicle 20, for example, may be autonomous. In other
words, the vehicle 20 may be autonomously operated such that the
vehicle 20 may be driven without constant attention from a driver,
i.e., the vehicle 20 may be self-driving without human input.
[0023] The vehicle 20 defines a longitudinal axis A1 extending
between a front and a rear of the vehicle 20. The vehicle 20
defines a lateral axis A2 extending between a right side and a left
side of the vehicle 20. The vehicle 20 defines a vertical axis A3
extending between a top and a bottom of the vehicle 20. The
longitudinal axis A1, the lateral axis A2, and the vertical axis A3
are perpendicular relative to each other.
[0024] The vehicle 20 may include a body 36. The body 36 includes
body panels partially defining an exterior of the vehicle 20. The
body panels may present a class-A surface, e.g., a finished surface
exposed to view by a customer and free of unaesthetic blemishes and
defects. The body 36 includes, e.g., the floor 22, the roof 26, one
or more pillars, etc. The roof 26 may extend along the longitudinal
axis A1 and the lateral axis A2. The roof 26 is above and spaced
from the floor 22 along the vertical axis A3. The roof 26 may
include cross bars, an exterior roof body panel, a headliner,
etc.
[0025] The body 36 may define the passenger compartment 34 to house
occupants, if any, of the vehicle 20. The passenger compartment 34
may extend across the vehicle 20, i.e., from the right side to the
left side of the vehicle 20. The passenger compartment 34 includes
a front end and a rear end with the front end being in front of the
rear end during forward movement of the vehicle 20. The passenger
compartment 34 is between the roof 26 and the floor 22 along the
vertical axis A3.
[0026] The floor 22 of the vehicle 20 supports objects, such as
seats 30, occupants, the personal mobility device 32, etc., within
the passenger compartment 34. The floor 22 may extend from the
front end to the rear end of the passenger compartment 34 and from
the right side to the left side of the vehicle 20. The floor 22
defines the seating area 24. The seating area 24 designates a
position in the passenger compartment 34 for the occupant to
occupancy. For example, the seating area 24 may be defined by
anchors 38 of the floor 22. The anchors 38 may include fasters,
reinforcement plates, etc. The anchors 38 may be connected to the
seat 30 and/or a floor mount 40 configured to engage the personal
mobility device 32 supported by the floor 22 within the seating
area 24. The seating area 24 may surround the anchors 38.
[0027] The seat 30, shown in FIG. 2, includes a seatback and a seat
bottom (not numbered). The seatback may be supported by the seat
bottom and may be stationary or movable relative to the seat
bottom. The seatback and the seat bottom may be adjustable in
multiple degrees of freedom. Specifically, the seatback and the
seat bottom may themselves be adjustable, in other words,
adjustable components within the seatback and/or the seat bottom,
and/or may be adjustable relative to each other. The seatback may
include a seatback frame and a covering supported on the seatback
frame. The seatback frame may include tubes, beams, etc.
Specifically, the seatback frame includes a pair of upright frame
members. The upright frame members are elongated, and specifically,
are elongated in a generally upright direction when the seatback is
in a generally upright position. The upright frame members are
spaced from each other and the seatback frame includes
cross-members (not shown) extending between the upright frame
members. The seatback frame, including the upright frame members,
may be of any suitable plastic material, e.g., carbon fiber
reinforced plastic (CFRP), glass fiber-reinforced semi-finished
thermoplastic composite (organosheet), etc. As another example,
some or all components of the seatback frame may be formed of a
suitable metal, e.g., steel, aluminum, etc. The covering may
include upholstery and padding. The upholstery may be cloth,
leather, faux leather, or any other suitable material. The
upholstery may be stitched in panels around the frame. The padding
may be between the covering and the seatback frame and may be foam
or any other suitable material. The seat 30 may be removable and/or
foldable, e.g., to provide space for the personal mobility device
32. The seat 30 may rotate, e.g., to face the front or the rear of
the vehicle 20.
[0028] The floor mount 40, shown, for example, in FIGS. 1, 3, and
4, is configured to engage and secure the personal mobility device
32 within the passenger compartment 34. The floor mount 40 may
include channels 42 designed to engage wheels of the personal
mobility device 32. Specifically, the channels 42 are sized and
shaped to receive wheels of the personal mobility device 32 such to
resist lateral movement of the personal mobility device 32 during
operation of the vehicle 20. The channels 42 may be spaced from
each other along the lateral axis A2 and parallel to each other
along the longitudinal axis A1. The channels 42 may be fixed to the
floor 22 via the anchors 38. The floor mount 40 may include any
suitable number of latches 44, tethers, etc., to secure the wheels
or other structure of the personal mobility device 32 to the
vehicle 20 and limit relative movement therebetween. The latches 44
may limit the movement of the personal mobility device 32 in the
channels 42, e.g., via engagement with the wheels. The latches 44
may be electronic or manual, e.g., each latch 44 may include a
solenoid. Actuation of the solenoid, e.g., in response to a command
from a computer 46, may engage the latch with the wheel.
[0029] The personal mobility device 32 may be of any suitable type
that supports a seated occupant and provides mobility to the seated
occupant, i.e., the personal mobility device 32 transports the
seated occupant outside of the vehicle 20 and moves the seated
occupant in the passenger compartment 34 during ingress to and
egress from the vehicle 20. The personal mobility device 32
supports the seated occupant in the passenger compartment 34 during
operation of the vehicle 20. The personal mobility device 32 may
include a frame 48 that supports other components of the personal
mobility device 32. The personal mobility device 32 may include
handles 50, e.g., for pushing the personal mobility device 32. The
personal mobility device 32 may include wheels, as described above.
As examples including wheels, the personal mobility device 32 may
be a wheelchair or a scooter. As another example, the personal
mobility device 32 may include a continuous track. In such an
example, the continuous track is in contact with ground and
personal mobility device 32 may include wheels that transmit force
to the continuous track. The personal mobility device 32 may
include a motor operably connected to the wheels and a battery that
provides power to the motor. The personal mobility device 32 may be
for example, a wheelchair, an electric scooter, etc.
[0030] The base 28 is generally planar, extending from a first end
52 to a second end 54. For example, the base 28 may include a first
crossbar 56 at the first end 52 and a second crossbar 58 at the
second end 54. The first crossbar 56 and the second crossbar 58 may
be elongated along the lateral axis A2. The first crossbar 56 and
the second crossbar 58 may be spaced from each, e.g., along the
longitudinal axis A1 and/or the vertical axis A3 (depending on
whether the base 28 is at the stowed position or the deployed
position). The base 28 may include a pair of connecting bars 60
that connect first crossbar 56 to the second crossbar 58.
[0031] The base 28 may define an opening 62 (illustrated in FIGS. 3
and 4). For example, the opening 62 may be defined by the first
crossbar 56, the second crossbar 58, and the pair of connecting
bars 60. The first crossbar 56, the second crossbar 58, and the
pair of connecting bars 60 may surround the opening 62. The opening
62 may be sized to receive handles 50 of the personal mobility
device 32. For example, the pair of connecting bars 60 may be
spaced from each other along the lateral axis A2 such that the
opening 62 therebetween is wider than handles of a standard sized
wheelchair, e.g., at least 28 inches, or is wider than handles of a
transport or pediatric sized wheelchair, e.g., at least 18
inches.
[0032] The base 28 is pivotally supported by the roof 26, i.e.,
such that the base 28 can pivot relative to the roof 26. For
example, a hinge 64 may connect the first end 52 of the base 28 to
the roof 26. The base 28 may pivot at the hinge 64 from the stowed
position to the deployed position, and vice versa. Movement of the
base 28 from the stowed position to the deployed position, or vice
versa, defines a path P. The path P is a volume traversed by the
base 28 from the one of the positions to the other. The path P may
be generally arcuate and extend downward and forward from the roof
26.
[0033] The base 28 in the stowed position is at the roof 26, e.g.,
the first end 52 and the second end 54 may be at the roof 26. The
base 28 in the stowed position may be parallel to the roof 26. For
example, the base 28 and the roof 26 may both extend along the
longitudinal axis A1 and the lateral axis A2. As another example,
in the stowed position the first end 52 and the second end 54 of
the base 28 may be proximate the roof 26. The first end 52 may be
forward of the second end 54 of the base 28 in the stowed position.
The connecting bars 60 may be elongated along the longitudinal axis
A1 when the base 28 is in the stowed position.
[0034] The base 28 in the deployed position is rearward of the
seating area 24, e.g., along the longitudinal axis A1. The base 28
in the deployed position extends transversely from the from roof
26. For example, the base 28 in the deployed position may extend
along vertical axis A3 perpendicular to the roof 26 extending along
the longitudinal axis A1. The pair of connecting bars 60 may be
elongated along the vertical axis A3. In the deployed position, the
first end 52 may be proximate the roof 26, e.g., connected at the
hinge 64, and the second end 54 may be distal, e.g., spaced from
the roof 26 along the vertical axis A3. In other words, the first
end 52 may be between the roof 26 and the second end 54 along the
vertical axis A3 when the base 28 is in the deployed position. The
handles 50 of the personal mobility device 32 may be disposed in
the opening 62 of base 28 when the base 28 in the deployed
position. For example, the handles 50 may extend along the
longitudinal axis A1 from in front of the base 28, through the
opening 62, to rearward of the base 28. The handles 50 may be
between the connecting bars 60 along the lateral axis A2 and
between the first crossbar 56 and the second crossbar 58 along the
vertical axis A3.
[0035] A brace 66 may be connected to the base 28 and the roof 26.
The brace 66 supports the base 28 in the deployed position, e.g.,
to reduce movement of the base 28 during an impact to the vehicle
20. For example, the brace 66 may enable the base 28 to provide a
stiffer reaction surface to the airbag 68 in the inflated position.
As another example, the brace 66 may limit forward movement of the
base 28 beyond the deployed position. The brace 66 may be connected
to the roof 26 at a first hinge 70 and to the base 28 at a second
hinge 72.
[0036] The brace 66 may include a first bar 74 and a second bar 76.
The first bar 74 may be connected to the roof 26, e.g., with the
first hinge 70. The second bar 76 may be connected to the base 28,
e.g., with the second hinge 72. The first bar 74 may be connected
to the second bar 76 at a third hinge 78. The first bar 74 may be
connected to the roof 26 opposite the third hinge 78, e.g., with
the first hinge 70 and the third hinge 78 at opposite distal ends
of the first bar 74. The second bar 76 may be connected to the base
28 opposite the third hinge 78, e.g., with the second hinge 72 and
the third hinge 78 at opposite distal ends of the second bar 76.
Movement of the base 28 from the stowed position to the deployed
position, or vise versa, may pivot the first bar 74 relative to the
roof 26 at the first hinge 70, the second bar 76 relative to the
base 28 at the second hinge 72, and the first bar 74 relative to
the second bar 76 at the third hinge 78.
[0037] The brace 66 may extend transverse to the roof 26 and the
base 28 in the deployed position. The brace 66 may extend rearward
from the base 28 away from seating area 24 and the upward toward
the roof 26. For example, the brace 66 may be elongated diagonally
from the base 28 to the roof 26 relative to the longitudinal axis
A1 and the vertical axis A3.
[0038] The vehicle 20 may include a lock 80 operatively engaged
with the base 28 to selectively maintain the base 28 in the
deployed position. For example, the lock 80 may inhibit motion of
base 28 relative to the roof 26, the brace 66 relative to the base
28, and/or the brace 66 relative the roof 26, during an impact to
the vehicle 20. The lock 80 may selectively inhibit movement of the
first bar 74 relative to the roof 26 or the second bar 76 relative
to the base 28. The lock 80 may engage the brace 66 when the
vehicle 20 is subject to deceleration above a threshold. For
example, the lock 80 may be an inertia actuated lock that includes
a weighted pawl, a ratchet gear, a spring, etc. Inertia may urge
the pawl into engagement with the gear and inhibit rotation of the
brace 66 relative to the roof 26 and/or base 28 when the vehicle 20
is subject to deceleration above the threshold. The lock 80 may
include a solenoid or other electromechanical structure that
actuates to engage the lock 80 with the brace 66 to inhibit motion,
e.g., in response to receiving a command from a computer 46. The
lock 80 may be supported by the roof 26 at the first hinge 70
connecting the roof 26 to the brace 66. The lock 80 may be
supported by the base 28 at the third hinge 78 connecting the base
28 to the brace 66 (not shown). The lock 80 may be supported at any
other suitable position such that lock 80 selectively maintains the
base 28 in the deployed position, e.g., at the hinge 64 connecting
the base 28 to the roof 26.
[0039] The vehicle 20 may include an actuator 82 that moves the
base 28 from the stowed position to the deployed position, and vice
versa. The actuator 82 may be an electro-mechanical, hydraulic,
and/or pneumatic device. The actuator 82 may include a motor,
reduction gears (such as a worm gear), a piston and cylinder
arrangement, and/or any other suitable structure that can generate
and apply force to pivot the base 28 relative to the roof 26. For
example, the actuator 82 may be fixed to the roof 26 and be
operatively connected to the base 28 such that torque is applied
from the actuator 82 to the first end 52 of the base 28. The
actuator 82 may move the base 28, for example, in response to a
command from the computer 46.
[0040] The vehicle 20 may include an attachment assembly 84
(illustrated in FIGS. 3 and 4) configured to engage and further
secure the personal mobility device 32 within the passenger
compartment 34, e.g., by limiting movement of the personal mobility
device 32 relative to the base 28. The attachment assembly 84 may
be fixed to the base 28, e.g., with a fastener or other suitable
structure. The attachment assembly 84 may include any suitable
number of latches, tethers 86, etc., that are attachable to the
frame 48, the handles 50, or other structure of the personal
mobility device 32.
[0041] The vehicle 20 may include an airbag housing 88. The airbag
housing 88 houses the airbag 68 in the uninflated position and
supports the airbag 68 in the inflated position. The airbag 68 may
be rolled and/or folded in the uninflated position to fit within
the airbag housing 88. The airbag housing 88 may be of any suitable
material, e.g., a rigid polymer, a metal, a composite, or a
combination of rigid materials. The housing may be fixed to the
base 28, e.g., to the first crossbar 56 at the first end 52.
[0042] The airbag 68 is inflatable from the uninflated position to
the inflated position. The airbag 68 defines an inflation chamber.
The inflation chamber receives inflation medium, e.g., from an
inflator 90, to inflate the airbag 68 from the uninflated position
to the inflated position. For example, one or more sheets of woven
material may be sewn, or otherwise fixed, to enclose the inflation
chamber and provide shape to the airbag 68 in the inflated
position. The airbag 68 may be woven nylon yarn, for example, nylon
6, 6. Other examples include polyether ether ketone (PEEK),
polyetherketoneketone (PEKK), polyester, etc. The woven polymer may
include a coating, such as silicone, neoprene, urethane, etc. For
example, the coating may be polyorgano siloxane.
[0043] With reference to FIG. 3, the airbag 68 in the uninflated
position may be supported by the base 28 closer to the first end 52
proximate the roof 26 than the second end 54 distal form the roof
26. For example, the airbag 68 in the uninflated position may be at
the first end 52 and fixed to the first crossbeam via the airbag
housing 88.
[0044] With reference to FIG. 4, the airbag 68 in the inflated
position extends forward of the base 28 toward the seating area 24.
In other words, the airbag 68 in the inflated position may extend
from the housing fixed to the base 28 toward the front of the
vehicle 20, e.g., along sides, and over a top, of the personal
mobility device 32 or seat 30 (not shown) in the seating area 24.
The airbag 68 in the inflated position may be quarter-sphere
shaped, i.e., generally shaped as half of a hemi-sphere. The airbag
68 in the inflated position may be sized to surround an occupant
seated in the personal mobility device 32 or seat 30 (not shown) in
the seating area 24. For example, the airbag 68 in the inflated
position may extend from the base 28 along sides, above, and in
front of the occupant, e.g., to control forward and sideways
kinematics of the occupant.
[0045] The inflator 90 is in fluid communication with the inflation
chamber of the airbag 68. The inflator 90 may be, for example, at
least partially in the inflation chamber to deliver inflation
medium directly to the inflation chamber or may be connected to the
inflation chamber through fill tubes, diffusers, etc. The inflator
90 inflates the airbag 68 with inflation medium, such as a gas, to
move the airbag 68 from the uninflated position to the inflated
position. The inflator 90 may be supported by any suitable
component. For example, the inflator 90 may be fixed to the base 28
with the housing. The inflator 90 may be, for example, a
pyrotechnic inflator that uses a chemical reaction to drive
inflation medium to the airbag 68. The inflator 90 may be of any
suitable type, for example, a cold-gas inflator.
[0046] One or more tethers 92 may be connected to the airbag 68 and
the base 28. For example, one tether 92 may be at a right side of
the airbag 68 and another tether 92 may be at a left side of the
airbag 68. In other words, the airbag 68 may be between such
tethers 92 along the lateral axis A2. The tethers 92 may guide
inflation of the airbag 68 and support the airbag 68 in the
inflated position, e.g., to control kinematics of the occupant. One
end of each of the tethers 92 may be fixed to the base 28, e.g., to
the connecting bars 60 and closer to the second crossbar 58 than
the first crossbar 56. An opposite end of the tethers 92 may be
fixed to the airbag 68. The tethers 92 may be elongated along the
vertical axis A3 when the base 28 is in the deployed position and
the airbag 68 is in the uninflated position, as shown in FIG. 3.
The tethers 92 may extend along opposite sides of the airbag 68 in
the inflated position, as shown in FIG. 4. For example, the tethers
may extend from the base 28 toward the front of the vehicle 20 to
bottom outside corners of the airbag 68 in the inflated
position.
[0047] The vehicle 20 may include one or more tether retractors 93
that generate tension in the tethers 92. The tether retractors 93
may generate such tension in response to receiving a command from
the computer 46. The tether retractors 93 may be supported by the
base 26. For example, the tether retractors 93may be fixed to the
second cross bar 58 or the connecting bar 60 at the second end 64.
The tether retractors 93 may be operatively engaged with the tether
retractors 93 and apply force thereto. For example, tether
retractors 93 retract may each include a piston coupled to the
tethers 92. Movement of the pistons may apply force to the tethers
92. As another example, tether retractors 93 may each include a
spool around which the tethers 92 are wound. Rotation of the spools
may apply force to tethers 92. The tether retractors 93 can each
include pyrotechnic material. The pyrotechnic may be combustible to
produce gas. The pyrotechnic material may be formed of a solid
mixture of substances that, when ignited, react to produce the gas.
For example, the pyrotechnic material may be formed of sodium azide
(NaNO3), potassium nitrate (KNO3), and silicon dioxide (SiO2),
which react to form nitrogen gas (N2). Actuation of the pyrotechnic
material, e.g., in response to an instruction from the computer 46,
may generate gas and urge the piston within a cylinder, apply
torque to the spool, etc.
[0048] The vehicle 20 may include one or more sensors 94 configured
to detect an object in the path P of the base 28. For example, one
or more object detection sensors, e.g., a camera, a CCD image
sensor, a CMOS image sensor, a proximity sensor, a capacitive
proximity sensor, a photoelectric sensor, an infrared proximity
sensor, etc., may be supported by vehicle 20 in the passage cabin
and oriented toward the path P of movement of the base 28.
[0049] The vehicle 20 may include one or more sensors 96 configured
to detect a personal mobility device 32 in the seating area 24. For
example, one or more object detection sensors may be supported by
the vehicle 20 in the passage cabin and oriented toward the seating
area 24 above the floor mount 40. As another example, pressure
sensors may be supported by the floor 22 in the seating area 24 and
indicate that a personal mobility device 32 is in the seating area
24 when weight above a threshold is detected. As another example, a
switch, proximate sensors, etc., may be attached to the floor mount
40 in the seating area 24 and detect when a personal mobility
device 32 is secured to the floor mount 40.
[0050] The vehicle 20 may include one or more impact sensors 100
configured to detect an impact to the vehicle 20. The impact sensor
100 may be of any suitable type, for example, post-contact sensors
such as accelerometers, 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 100 may
be located at numerous points in or on the vehicle 20.
[0051] The computer 46 is a microprocessor-based controller
implemented via circuits, chips, or other electronic components.
The computer 46 includes a processor and a memory such as are
known. The memory includes one or more forms of computer readable
media, and stores instructions executable by the computer 46 for
performing various operations, including as disclosed herein. The
computer 46 may be programmed to execute operations disclosed
herein. Specifically, the memory stores instructions executable by
the processor to execute the operations disclosed herein and
electronically stores data and/or databases. For example, the
computer 46 may include one or more dedicated electronic circuit
including an ASIC (Application Specific Integrated Circuit) that is
manufactured for a particular operation. In another example, the
computer 46 may include an FPGA (Field Programmable Gate Array)
which is an integrated circuit manufactured to be configurable by a
customer. As an example, a hardware description language such as
VHDL (Very High Speed Integrated Circuit Hardware Description
Language) is used in electronic design automation to describe
digital and mixed-signal systems such as FPGA and ASIC. For
example, an ASIC is manufactured based on VHDL programming provided
pre-manufacturing, and logical components inside an FPGA may be
configured based on VHDL programming, e.g. stored in a memory
electrically connected to the FPGA circuit. In some examples, a
combination of processor(s), ASIC(s), and/or FPGA circuits may be
included inside a chip packaging. The computer 46 may be a set of
computer 46s communicating with one another.
[0052] The computer 46 is generally arranged for communications on
a communication network 98 that can include a bus in the vehicle 20
such as a controller area network (CAN) or the like, and/or other
wired and/or wireless mechanisms. Via the communication network 98,
the computer 46 may transmit messages to various devices in the
vehicle 20, and/or receive messages (e.g., CAN messages) from the
various devices, e.g., the inflator 90, the actuator 82, the
various sensors, etc. Alternatively or additionally, in cases where
the computer 46 comprises a plurality of devices, the communication
network 98 may be used for communications between devices
represented as the computer 46 in this disclosure.
[0053] The computer 46 may be programmed to, i.e., the memory
stores instructions executable by the processor to, command the
actuator 82 to move the base 28 in response to detecting the
personal mobility device 32 in the seating area 24. The computer 46
may detect a personal mobility device 32 in the seating area 24
based on data from the sensors 96 configured to detect a personal
mobility device 32 in the seating area 24. The data may be received
by the computer 46 from the sensors 96 via the communication
network 98. The data from the sensors 96 may indicate, for example,
that an object is detected in the seating area 24 above the floor
mount 40, that weight above a threshold amount is being applied to
the seating area 24, that the floor mount 40 is engaged with a
personal mobility device 32, etc. The computer 46 may, in response
to receiving such data, send a command to the actuator 82
specifying movement of the base 28 to the deployed position. The
computer 46 may transmit such command via the communication network
98.
[0054] The computer 46 may be programmed to inhibit the actuator 82
from moving the base 28 in response to detecting an object in the
path P of the base 28. The computer 46 may detect an object in the
path P of the base 28 based on data from the sensors 94 configured
to detect an object in the path P of the base 28. The data may be
received by the computer 46 from the sensors 94 via the
communication network 98. The data from the sensors 94 may
indicate, for example, that an object is detected in image data
from a camera or the like that is pointed at the path P, that an
object is in front of and/or within a threshold range of a
proximity sensor or the like pointed at the path P, etc. The
computer 46 may, in response to receiving such data, send a command
to the actuator 82 specifying stopping movement of the base 28. The
computer 46 may transmit such command via the communication network
98.
[0055] The computer 46 may be programmed to inflate the airbag 68.
For example, under normal operating conditions of the vehicle 20,
the airbag 68 is in the uninflated position. In the event of an
impact, the impact sensor 100 may detect the impact and transmit a
signal through the communication network 98 to the computer 46. In
response to receiving such signal, the computer 46 may transmit a
signal through the communication network 98 to the inflator 90 to
inflate the airbag 68 and to the lock 80 to inhibit movement of the
base 28 relative to the roof 26. In response to receiving such
signal, the inflator 90 may discharge and inflate the airbag 68 to
the inflated position to control kinematics of the seat 30 and/or
the occupant. The base 28 may provide a reaction surface to the
airbag 68 in the inflated position.
[0056] Computer executable instructions may be compiled or
interpreted from computer programs created using a variety of
programming languages and/or technologies, including, without
limitation, and either alone or in combination, Java.TM., C, C++,
Visual Basic, Java Script, Perl, HTML, etc. In general, a processor
(e.g., a microprocessor) receives instructions, e.g., from a
memory, a computer readable medium, etc., and executes these
instructions, thereby performing one or more processes, including
one or more of the processes described herein. Such instructions
and other data may be stored and transmitted using a variety of
computer readable media. A file in a networked device is generally
a collection of data stored on a computer readable medium, such as
a storage medium, a random access memory, etc.
[0057] A computer readable medium includes any medium that
participates in providing data (e.g., instructions), which may be
read by a computer. Such a medium may take many forms, including,
but not limited to, non volatile media, volatile media, etc. Non
volatile media include, for example, optical or magnetic disks and
other persistent memory. Volatile media include dynamic random
access memory (DRAM), which typically constitutes a main memory.
Common forms of computer readable media include, for example, a
floppy disk, a flexible disk, hard disk, magnetic tape, any other
magnetic medium, a CD ROM, DVD, any other optical medium, punch
cards, paper tape, any other physical medium with patterns of
holes, a RAM, a PROM, an EPROM, a FLASH EEPROM, any other memory
chip or cartridge, or any other medium from which a computer can
read.
[0058] Use of "in response to," "based on," and "upon determining"
herein indicates a causal relationship, not merely a temporal
relationship.
[0059] 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.
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