CN109334605B - Back row built-in safety airbag and control method thereof - Google Patents

Back row built-in safety airbag and control method thereof Download PDF

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Publication number
CN109334605B
CN109334605B CN201811048201.3A CN201811048201A CN109334605B CN 109334605 B CN109334605 B CN 109334605B CN 201811048201 A CN201811048201 A CN 201811048201A CN 109334605 B CN109334605 B CN 109334605B
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air
air chamber
unit
air bag
airbag
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CN201811048201.3A
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CN109334605A (en
Inventor
葛如海
陈宇航
崔义忠
顾瑶芝
蔡朝阳
黄可鑫
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Jiangsu University
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Jiangsu University
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    • 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
    • B60R21/20—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
    • 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
    • B60R2021/2078—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in rear seats
    • 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
    • B60R2021/23153—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for rear seat passengers

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

Abstract

The invention discloses a rear row built-in safety airbag and a control method thereof, wherein the rear row built-in safety airbag is composed of two airbag units which are symmetrically arranged, the two airbag units are arranged at the middle position of a rear row seat and comprise 2 air chambers, when an automobile is collided at the side surface, the automobile is inflated, the air is inflated through an air inlet of a first air chamber, air flow is inflated into a second air chamber along a one-way valve in an airbag bag, an included angle of 0-15 degrees is formed between the airbag and the advancing direction of the automobile after the airbag is completely unfolded, the two airbag units can be mutually extruded and supported, and the bottom end of the second air chamber is positioned above a cup holder of the rear row seat after the airbag is unfolded; in the collision process, the pressure sensor in the second air chamber detects the air pressure condition in the air bag, and when the air pressure condition exceeds a threshold value, the side check valve of the safety air bag unit releases air, so that the buffering effect is achieved, and passengers are protected.

Description

Back row built-in safety airbag and control method thereof
Technical Field
The invention belongs to the technical field of vehicle driving safety, and particularly relates to a rear row built-in safety airbag and a control method thereof.
Background
Automobile collision accidents can be divided into frontal, lateral, rear-end, side-tipping and other forms of collisions. With frontal collisions accounting for the majority of all forms of collisions and side collisions being the second order.
In order to reduce the injury of passengers caused by side collision of an automobile, more and more vehicles are provided with side protection devices such as a side air Curtain (CAB) and a Side Air Bag (SAB), so that the casualties of front and rear passengers caused by direct collision with hard objects such as door trims in side collision accidents are effectively reduced.
In the case of a rear passenger, when a side collision occurs, a far-end passenger (i.e., a passenger on the non-collision side) moves in the vehicle interior, and the trunk of the vehicle falls inward due to restraint of the webbing, and in the process, the vehicle may collide with a passenger on the collision side or a hard object such as a cup holder that is laid down on a rear seat, and may be injured.
The protection between passengers is researched at home and abroad. Patent EP3141437a1 discloses a distal air bag 0 disposed on the opposite side of a front seat back to be deployed between a driver's seat occupant and a passenger's seat occupant for reducing injury caused by collision of the driver's occupants with each other. The invention protects the front row members, but has no effective protection measure for protecting the rear row passengers during side collision.
Disclosure of Invention
The invention provides a rear row built-in airbag for solving the problems of secondary injury caused by collision between passengers and hard objects such as a rear row cup holder and the like in side collision of the passengers on the rear row.
The technical scheme of the invention is as follows:
a rear-row built-in airbag is arranged based on a coordinate system in a positive direction with respect to a forward direction of a vehicle. The safety airbag consists of two symmetrical safety airbag units A and B and an initiation device thereof, and comprises a fabric for a second air chamber of the airbag unit A far away from a passenger, a fabric for a first air chamber of the airbag unit A near the passenger, a fabric for a side surface and an upper part of the second air chamber of the airbag unit A, a fabric for a partition of the airbag unit A, a one-way valve(s) among air chambers of the airbag unit A, a fabric for a lower part of the second air chamber of the airbag unit A, a suture line for the lower part of the second air chamber of the airbag unit A, a one-way valve for a side surface of the second air chamber of the airbag unit A, a first air chamber drawstring(s) of the airbag unit A, a second air chamber drawstring(s) of the airbag unit A, an initiation device of the airbag unit A, a fabric for a second air chamber of the airbag unit B far away from the passenger, a fabric for a first air chamber of the airbag unit B near the passenger, a fabric for a side surface and an upper part of the second air chamber of the airbag unit B, The airbag system comprises an airbag unit B partition fabric, one-way valves (a plurality of) among airbag units B, a fabric at the lower part of a second airbag unit B, a fabric suture line at the lower part of the second airbag unit B, a one-way valve at the side surface of the second airbag unit B, a first airbag drawstring (a plurality of) of the airbag unit B, a second airbag drawstring (a plurality of) of the airbag unit B, an airbag unit B detonating device and a PLC (programmable logic controller). The two airbag units A and B are respectively installed in a middle covering on one side, far away from the vehicle door, of the back of the rear seat. Each airbag unit comprises an air bag and an inner pull belt connected with the air bag. The air bag is formed by sewing a plurality of pieces of fabric into a first air chamber close to the passenger and a second air chamber far away from the passenger, a separation fabric is arranged between the first air chamber and the second air chamber, and a plurality of one-way valves are arranged on the separation fabric and used for communicating the first air chamber with the second air chamber to form a series structure. The first air chamber and the second air chamber are limited in width in the collision direction of the side face after being unfolded by the inner pull belt.
Further, an air inlet is formed in the first air chamber of each air bag unit and is directly connected with the initiation device, the second air chamber is not directly connected with the initiation device, the initiation device is fixed in a skin on one side, far away from the car door, of the back of the seat in the rear row, and the initiation device is located on the middle upper portion of the back of the seat in the vertical direction. And the PLC is connected with the initiation device, and when side collision occurs, the PLC controls the initiation device to initiate detonation so as to inflate the first air chamber. The one-way valve between the air chambers is connected with the PLC, when the air bag is inflated, the one-way valve between the air chambers is opened to enable the two air chambers to be communicated, air flows from the first air chamber to the second air chamber and is gradually filled in the second air chamber, and when a passenger at the far end (namely, the non-collision side) is about to contact with the first air chamber, the bag body is completely unfolded.
Furthermore, the check valve between the air chambers is closed after the air bag is inflated, and the two air chambers are relatively independent and are not communicated.
The second air chamber bag body is provided with a second air chamber side one-way valve at a position far away from the passenger in the advancing direction of the vehicle, and is connected with the PLC. When the air bag is squeezed by a passenger, the one-way valve on the side surface of the second air chamber is opened after the air pressure of the second air chamber reaches a certain value, so that the air bag is exhausted.
Furthermore, an included angle between the unfolding direction of the air bags of the 2 air bag units of the middle safety air bag and the advancing direction of the vehicle is 0-15 degrees, and when the unfolding direction of the air bags and the advancing direction of the vehicle are not 0 degrees, the air bags deviate towards the direction far away from the passengers on the side. The two symmetrical airbag units are brought into a mutually supported state.
Further, after each air bag unit of the middle-mounted safety air bag is completely unfolded, the lower end of the air bag of the first air chamber is positioned at the lower part of the chair back, and the top end of the air bag of the first air chamber is higher than the upper part of the chair back; the lower end of the second air chamber air bag is higher than the upper part of the laid back row seat cup holder, and the top end of the second air chamber air bag is higher than the upper part of the seat back. The first and second air chamber bags cover the head, neck, shoulder, chest and abdomen of the occupant in the vertical direction after being fully deployed.
Further, after each airbag unit of the center airbag is fully deployed, the front ends of the first and second air chamber bags are located at the middle front part of the seat, and cover the head, neck, shoulder and chest of the occupant in the vehicle advancing direction and exceed a certain length.
Further, each of the airbag units of the center-mounted airbag is configured such that the first and second air bags have a width slightly larger than a half of a distance between the two airbag units in a side collision direction above the cup holder portion after the airbag units are fully deployed, in order to allow the two airbag units to be supported by being pressed against each other after the airbag units are fully deployed.
The invention has the beneficial effects that:
1. the safety airbag arranged in the rear row is designed with two symmetrical safety airbag units and is arranged between two passengers at the middle part of the rear row of an automobile, the belly of the passenger and the area above the belly are covered to protect the safety airbag, and the injury caused by collision between the passengers or collision between the passengers and hard objects such as a cup holder and the like in the side collision process is reduced or avoided.
2. The airbag unit disclosed by the invention can realize the sequential expansion of two air chamber airbags through the limitation of a serial connection mode and a drawstring, and can cross the cup holder under the condition that the cup holder of a rear seat is put down, so that the stability of the airbag in the expansion process is ensured.
3. The air bag unit can exhaust air after the pressure in the air chamber reaches a certain value through the controllable exhaust device, so that the pressure maintaining effect of a passenger on a collision side in the period from the collision starting moment to the moment of rebounding to the middle safety air bag can be ensured.
Drawings
Fig. 1 is an exploded view of an airbag unit a of the rear-row airbag of the present invention.
Fig. 2 is an exploded view of the airbag unit B of the rear-row airbag of the present invention.
FIG. 3 is a front sectional view of the rear airbag-mounted airbag unit A showing the inner side of the airbag unit A when the airbag is deployed and the flow of gas.
FIG. 4 is a front sectional view of the rear airbag unit B in which the rear airbag is disposed, showing the inner side of the airbag unit B when the airbag is deployed and the flow direction of the gas.
Fig. 5 is an isometric view of the deployment of the rear row airbag of the present invention.
Fig. 6 is a front view showing a deployed state of the rear-row built-in airbag of the present invention.
Fig. 7 is a side view showing a deployed state of the rear-row built-in airbag of the present invention.
Fig. 8 is a plan view showing a deployed state of the rear-row built-in airbag according to the present invention.
In the figure:
1-airbag unit a second air chamber air bag is far from the passenger side fabric; 2-airbag unit a second air chamber air pocket side and upper fabric; 3-a one-way valve at the side of the second air chamber of the air bag unit A; 4-air chamber one-way valve(s) of air bag unit A; 5-airbag unit a separation fabric; 6-airbag unit a first airbag is close to the passenger side fabric; 7-air bag unit a first air chamber drawstring(s); 8-airbag unit a detonating device; 9-airbag unit a second air chamber air bag lower fabric sewing line; 10-airbag unit a second air chamber lower air bag fabric; 11-air bag unit a second air chamber drawstring; 12-airbag unit B first airbag near passenger side fabric; 13-air bag unit B first air chamber drawstring; 14-one-way valve between air chambers of air bag unit B; 15-air bag unit B second air chamber drawstring; 16-airbag unit B second air chamber side check valve; 17-airbag unit B second air chamber air pocket side and upper fabric; 18-airbag unit B second air chamber airbag away from occupant side fabric; 19-airbag unit B second air chamber air bag lower fabric; 20-airbag unit B second air chamber air bag lower fabric seam; 21-airbag unit B spacer fabric; 22-airbag unit B detonating device; 23-airbag unit a second air chamber; 24-airbag unit a first air chamber air inlet; 25-air bag unit a first air chamber; 26-airbag unit B second air chamber; 27-airbag unit B first air chamber air inlet; 28-airbag unit B first air chamber; 29-airbag unit B; 30-airbag unit a; 31-rear row cup holder; 32-rear seats; 33-rear passenger a; 34-rear passenger B.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1 and 2, the rear-row internal airbag device of the present invention includes: a fabric 1 at the side of the second air chamber of the air bag unit A far from the passenger, a fabric 2 at the side and the upper part of the second air chamber of the air bag unit A, a check valve 3 at the side of the second air chamber of the air bag unit A, a check valve 4 (a plurality) between the air chambers of the air bag unit A, a partition fabric 5 of the air bag unit A, a fabric 6 at the side of the first air chamber of the air bag unit A close to the passenger, a first air chamber drawstring 7 (a plurality) of the air bag unit A, an explosion device 8 of the air bag unit A, a lower fabric suture 9 of the second air chamber of the air bag unit A, a lower fabric 10 of the second air chamber of the air bag unit A, a second air chamber drawstring 11 (a plurality) of the air bag unit A, a first air chamber air bag of the air bag unit B close to the side fabric 12, a first air chamber drawstring 13 (a plurality) of the air bag unit B, a check valve 14 (a plurality) between the air chambers of the air bag unit B, a second air chamber drawstring 15 (a plurality) of the air chamber drawstring 15, The airbag unit B second air chamber side check valve 16, the airbag unit B second air chamber bag side and upper fabric 17, the airbag unit B second air chamber bag far-passenger side fabric 18, the airbag unit B second air chamber bag lower fabric 19, the airbag unit B second air chamber bag lower fabric sewing line 20, the airbag unit B separation fabric 21, the airbag unit B priming device 22 and the PLC controller.
As shown in fig. 5 and 6, the rear-row airbag of the present invention is composed of two airbag units, namely, an airbag unit a30 and a left airbag unit B29, which can be independently ignited, and are respectively installed in a middle cover of the rear-row seat back on the side away from the vehicle door after being folded, and the position of the airbag in the vertical direction is located at the middle upper part of the seat back, as shown in fig. 6 and 7, which refer to the position schematic diagrams of the component 8 and the component 22.
The air bag unit a30 includes a first air chamber 25 and a second air chamber 23. The first air chamber 25 and the second air chamber 23 are separated by an air bag unit A separation fabric 5, and a plurality of air bag unit A air chamber one-way valves 4 are arranged on the air bag unit A separation fabric 5 and used for communicating the two air chambers during detonation and separating the two air chambers after inflation is finished. The first air chamber 25 and the second air chamber 23 are respectively limited in the thickness after being unfolded by the first air chamber pull belt 7 and the second air chamber pull belt 11.
The fabric 5 of the airbag unit A and the fabric 6 of the first air chamber of the airbag unit A close to the passenger are sewn to form a first air chamber 25 of the airbag unit A, an air inlet 24 of the first air chamber of the airbag unit A is directly connected with the initiation device 8 of the airbag unit A, and the initiation device 8 of the airbag unit A is connected with the PLC. When collision happens, the PLC controls the detonation device 8 of the air bag unit A to detonate to inflate the first air chamber, the air chamber one-way valve 4 of the air bag unit A is opened at the moment, air flows to the upper part and the lower part of the first air chamber 25 of the air bag unit A and flows to the second air chamber 23 of the air bag unit A through the air chamber one-way valve 4 of the air bag unit A, the first air chamber 25 of the air bag unit A and the second air chamber 23 of the air bag unit A are filled in sequence, and the PLC controls the air chamber one-way valve 4 of the air bag unit A to be closed at the moment to separate the two air chambers of the air bag, and the two air chambers are shown in figures 3 and 4. The air bag unit A second air chamber side one-way valve 3 and the air bag unit B second air chamber side one-way valve 16 are always in a closed state in the air bag inflation process, so that air leakage in the inflation process is avoided, and pressure maintaining is facilitated. Similarly for the air-bag unit B, on inflation, the air flow is in the direction from the air-bag unit B first air chamber inlet 27 to the air-bag unit B second air chamber 26.
An included angle a between the unfolding direction of the airbag unit A30 and the advancing direction of the vehicle is 0-15 degrees, and when the included angle a is not 0 degrees, the airbag unit A30 deviates 15 degrees towards the direction away from the passenger on the side, and forms a mutual extrusion supporting state with the airbag unit B, which is shown in fig. 8.
After the air bag unit A30 is completely unfolded, the lower end of an air bag of the first air chamber 25 of the air bag unit A is positioned at the lower part of the chair back, and the top end is higher than the upper part of the chair back; the lower end of the air bag of the second air chamber 23 of the air bag unit A is higher than the upper part of the rear row cup holder 31 of the laid-down rear row seat 32, and the upper end of the air bag is higher than the upper part of the chair back. The airbag unit a first air chamber 25 airbag and the airbag unit a second air chamber 23 airbag cover the head, neck, shoulder and chest of the occupant in the vertical direction after being fully deployed. The airbag unit a30 is located at the front middle portion of the seat when fully deployed, covering the head, neck, shoulder, and chest of the occupant over a certain length in the vehicle forward direction.
The airbag unit B29 has a symmetrical structure and arrangement to the airbag unit a.
The control method of the invention comprises the following steps:
when a side collision happens, the air bag unit A30 and the air bag unit B29 which are arranged in the middle cover of the side, far away from the car door, of the back row seat are detonated and unfolded simultaneously, inflation air flows into the first air chamber from the air inlets of the first air chambers of the two air bag units and flows into the second air chamber from the check valve between the first air chamber and the second air chamber under the control of the PLC, and the second air chamber is inflated. After the inflation is finished, the one-way valve between the first air chamber and the second air chamber is closed, so that the two air chambers of each air bag unit are mutually independent and are not communicated. When the two airbag units are completely unfolded, the included angle between the airbag units and the advancing direction of the vehicle is 0-15 degrees and is far away from the direction of a passenger on the side of the airbag units, the two airbag units are mutually supported in a squeezing mode, the top end of the first air chamber is higher than the top end of the seat, the bottom end of the first air chamber is located at the bottom of the rear row of seats, the top end of the second air chamber is higher than the top end of the seat, the bottom end of the second air chamber is higher than the rear row cup holder 31 of the laid-down rear row of seats 32, the two airbag units can cover the heads, the necks, the shoulders, the chests and the abdomens of the passengers in the vertical direction and the front-back horizontal direction, and the rear row of passengers A33 and the rear row of passengers B34 are protected;
two passengers contact and extrude place side gasbag unit, work as after gasbag unit A second air chamber 23 and gasbag unit B second air chamber 26 internal pressure reach certain numerical value, PLC controller control gasbag unit A second air chamber side check valve 3 and gasbag unit B second air chamber side check valve 16 open, and two gasbag units are discharged, form the buffering to the passenger, avoid producing direct collision between the passenger or between passenger and the glass stand to reduce the injury that produces from this.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.

Claims (2)

1. A rear-row-seating airbag, comprising: an adjacent airbag unit A (30) and an adjacent airbag unit B (29);
the airbag unit A (30) includes: the airbag comprises an airbag unit A second air chamber air bag far away from a passenger side fabric (1), an airbag unit A first air chamber air bag near the passenger side fabric (6), an airbag unit A second air chamber air bag side and upper fabric (2), an airbag unit A separating fabric (5), a plurality of airbag unit A air chamber one-way valves (4), an airbag unit A second air chamber air bag lower fabric (10), an airbag unit A second air chamber side one-way valve (3) and an airbag unit A detonating device (8);
the airbag unit A comprises a fabric (1) with a second air chamber far away from a passenger, a fabric (6) with a first air chamber close to the passenger, a side surface and an upper fabric (2) of the airbag unit A with the second air chamber, and a separation fabric (5) of the airbag unit A, wherein the two air chambers of the airbag unit A can be formed by the airbag unit A, namely a first air chamber (25) of the airbag unit A and a second air chamber (23) of the airbag unit A; the first air chamber and the second air chamber are separated by an airbag unit A separation fabric (5); the air chamber one-way valves (4) of the air bag unit A are arranged on the partition fabric (5) of the air bag unit A; the first air chamber is provided with an air bag unit A first air chamber air inlet (24) which is used for being connected with an air bag unit A detonating device (8); the side check valve (3) of the second air chamber of the air bag unit A is positioned on the second air chamber and used for releasing the gas in the air bag unit A (30);
the airbag unit B (29) includes: the airbag unit B comprises fabric (18) of a second air chamber of the airbag unit B far away from a passenger, fabric (12) of a first air chamber of the airbag unit B near the passenger, fabric (17) of the side surface and the upper part of the second air chamber of the airbag unit B, separating fabric (21) of the airbag unit B, check valves (14) among air chambers of the airbag unit B, fabric (20) of the lower part of the second air chamber of the airbag unit B, check valves (16) of the side surface of the second air chamber of the airbag unit B and a detonating device (22) of the airbag unit B;
the airbag unit B second air chamber air bag is far away from the passenger side fabric (18), the airbag unit B first air chamber air bag is close to the passenger side fabric (12), the airbag unit B second air chamber air bag side and upper fabric (17) and the airbag unit B separating fabric (21) can form two air chambers of an airbag unit B (29), namely an airbag unit B first air chamber (28) and an airbag unit B second air chamber (26); the first air chamber and the second air chamber are separated by an airbag unit B separating fabric (21); the plurality of air cell B inter-air chamber check valves (14) are arranged on the air cell B partition fabric (21); the first air chamber is provided with an air bag unit B first air chamber air inlet (27) which is used for being connected with an air bag unit B detonating device (22); the side check valve (16) of the second air chamber of the air bag unit B is positioned on the second air chamber and used for releasing the gas in the air bag unit B (29);
the airbag unit a further includes: the air bag comprises a plurality of air bag unit A first air chamber drawstrings (7) and a plurality of air bag unit A second air chamber drawstrings (11), wherein the plurality of air bag unit A first air chamber drawstrings (7) are positioned in a first air chamber to limit the expanded thickness of the first air chamber, and the plurality of air bag unit A second air chamber drawstrings (11) are positioned in a second air chamber to limit the expanded thickness of the second air chamber; the airbag unit B (29) further includes: the air bag comprises a plurality of air bag unit B first air chamber drawstrings (13) and a plurality of air bag unit B second air chamber drawstrings (15), wherein the plurality of air bag unit B first air chamber drawstrings (13) are positioned in a first air chamber to limit the expanded thickness of the first air chamber, and the plurality of air bag unit B second air chamber drawstrings (15) are positioned in a second air chamber to limit the expanded thickness of the second air chamber;
the device also comprises a PLC controller; the PLC is respectively connected with the detonation device (8) of the air bag unit A and the detonation device (22) of the air bag unit B, and when side collision occurs, the PLC controls the two detonation devices to detonate to respectively inflate a first air chamber (25) of the air bag unit A and a first air chamber (28) of the air bag unit B; the one-way valves between the air chambers of the two air bag units are connected with the PLC, when the air bags are inflated, the one-way valves between the air chambers of the two air bag units are opened, so that the two air chambers of each air bag unit are communicated, and the air flows from the first air chamber to the second air chamber and gradually fills the second air chamber;
a pressure sensor is also arranged in the second air chamber of each air bag unit and is connected with the PLC; the side one-way valve of the second air chamber of each air bag unit is connected with the PLC; when the two air bag units are squeezed by passengers to enable the air pressure of the second air chamber to reach a certain value, the PLC controls the side check valve of the second air chamber to be opened, so that the air bags are exhausted;
the air bag unit A and the air bag unit B are symmetrically arranged in the middle of one side, away from the vehicle door, of the seat back of a rear seat (32); the airbag unit A (30) protects a side rear passenger A (33), and the airbag unit B (29) protects the other side rear passenger B (34);
when the air bag unit A (30) and the air bag unit B (29) are inflated and unfolded, the included angle between the unfolding direction and the advancing direction of a vehicle is 0-15 degrees, the two air bag units deviate from the direction away from the corresponding passengers, and the two air bag units are mutually extruded and supported;
after the two air bag units are completely unfolded, the lower end of the air bag of the first air chamber is positioned at the lower part of the chair back, and the top end of the air bag of the first air chamber is higher than the upper part of the chair back; the lower end of the second air chamber air bag is higher than the upper part of the placed rear row cup holder (31), and the top end is higher than the upper part of the chair back; the first air chamber air bag and the second air chamber air bag can cover the head, the neck, the shoulder, the chest and the abdomen of the passenger in the vertical direction after being completely unfolded;
after the two air bag units are completely unfolded, the front ends of the first air chamber air bag and the second air chamber air bag are positioned in the middle front part of the seat and cover the head, the neck, the shoulder and the chest of an occupant in the advancing direction of the vehicle.
2. A control method of a rear-row airbag according to claim 1,
when a side collision happens, an air bag unit A (30) and an air bag unit B (29) which are arranged in a middle cover on the side, far away from a vehicle door, of a seat back of a rear-row seat (32) are simultaneously exploded and unfolded, inflation air flows into a first air chamber from an air inlet of the first air chamber of the two air bag units under the control of a PLC (programmable logic controller), flows into a second air chamber from a one-way valve between the first air chamber and the second air chamber, inflates the second air chamber, when the two air bag units are completely unfolded, an included angle between the air bag units and the advancing direction of a vehicle is 0-15 degrees, the two air bag units are mutually extruded and supported, the top end of the first air chamber is higher than the top end of the seat, the bottom end of the first air chamber is positioned at the bottom of the rear-row seat, the top end of the second air chamber is higher than a rear-row cup holder (31) of the laid-down rear-row seat (32), and the two air bag units can cover the head of a passenger in the vertical direction and the front-back horizontal direction, A neck, a shoulder, a chest and an abdomen, which protect a rear passenger A (33) and a rear passenger B (34);
two passenger contacts and extrudes place side gasbag unit, works as after gasbag unit A second air chamber (23) and gasbag unit B second air chamber (26) internal pressure reach certain numerical value, PLC controller control gasbag unit A second air chamber side check valve (3) and gasbag unit B second air chamber side check valve (16) are opened, and two gasbag units are discharged, form the buffering to the passenger, avoid producing direct collision between passenger or passenger and the glass stand between the passenger.
CN201811048201.3A 2018-09-10 2018-09-10 Back row built-in safety airbag and control method thereof Active CN109334605B (en)

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Publication number Priority date Publication date Assignee Title
JP7247328B2 (en) * 2019-04-24 2023-03-28 オートリブ ディベロップメント エービー air bag device
CN113022493A (en) * 2021-04-08 2021-06-25 上海东方久乐汽车安全气囊有限公司 Far-side safety airbag and folding mode thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904071A1 (en) * 1999-02-02 2000-08-03 Volkswagen Ag Safety device for car has air bag module made out of folded air bag and gas generator located in back rest between two seats
CN1654250A (en) * 2004-02-10 2005-08-17 高田株式会社 Occupant protection system
CN102463955A (en) * 2010-11-12 2012-05-23 现代自动车株式会社 Center airbag module for vehicle
CN102975681A (en) * 2012-11-02 2013-03-20 浙江吉利汽车研究院有限公司杭州分公司 Air pocket of safety air bag

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009006860A (en) * 2007-06-28 2009-01-15 Toyoda Gosei Co Ltd Occupant crash protection device for vehicle
JP5949791B2 (en) * 2014-01-14 2016-07-13 トヨタ自動車株式会社 Vehicle occupant protection device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904071A1 (en) * 1999-02-02 2000-08-03 Volkswagen Ag Safety device for car has air bag module made out of folded air bag and gas generator located in back rest between two seats
CN1654250A (en) * 2004-02-10 2005-08-17 高田株式会社 Occupant protection system
CN102463955A (en) * 2010-11-12 2012-05-23 现代自动车株式会社 Center airbag module for vehicle
CN102975681A (en) * 2012-11-02 2013-03-20 浙江吉利汽车研究院有限公司杭州分公司 Air pocket of safety air bag

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