KR101611087B1 - Method and system for protecting passenger in vehicle - Google Patents

Method and system for protecting passenger in vehicle Download PDF

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Publication number
KR101611087B1
KR101611087B1 KR1020140144162A KR20140144162A KR101611087B1 KR 101611087 B1 KR101611087 B1 KR 101611087B1 KR 1020140144162 A KR1020140144162 A KR 1020140144162A KR 20140144162 A KR20140144162 A KR 20140144162A KR 101611087 B1 KR101611087 B1 KR 101611087B1
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KR
South Korea
Prior art keywords
seat
collision
vehicle
posture
airbag
Prior art date
Application number
KR1020140144162A
Other languages
Korean (ko)
Inventor
권혁인
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현대자동차주식회사
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Priority to KR1020140144162A priority Critical patent/KR101611087B1/en
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Publication of KR101611087B1 publication Critical patent/KR101611087B1/en

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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
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01554—Seat position sensors
    • 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
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/304—Acceleration sensors
    • B60Y2400/3042—Collision sensors

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

Abstract

Disclosed are a system and a method for protecting a passenger in a vehicle. The system comprises: a position sensing unit receiving a rotation position of a seat; a collision sensing unit receiving a collision signal or a collision prediction signal of a vehicle; and a control unit determining the direction in which a collision has occurred when the collision signal of the vehicle is inputted, and controlling an airbag provided around a passenger to be selectively deployed in accordance with the direction in which the collision has occurred and the rotation position of the seat. The present invention optimizes the operation of a system for protecting a passenger in accordance with a seating position when a collision occurs or a collision is predicted by determining the seating position of the passenger.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a passenger protection system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for protecting a passenger on a vehicle, and more particularly, to a passenger protection system for protecting a passenger System and method.

The airbag mitigates the impact of the occupant by appropriately inflating the airbag cushion when an accident occurs in the vehicle, thereby preventing or reducing injury to the occupant. The airbag can be installed to expand and deploy in various forms around the passenger.

That is, a curtain airbag and a side airbag deployed on the sides of the passenger and protecting the passenger are provided on the basis of a driver's seat and a frontal airbag deployed in front of the driver's seat, and a knee airbag or the like for protecting passengers' knees can be provided .

The inflation behavior of the airbag plays an important role in ensuring the safety of the passenger, so that the airbag is appropriately inflated and expanded according to the collision direction to safely protect the passenger.

The present airbag apparatus is designed to deploy the airbag cushion on the basis of a predetermined state in which the posture of the seat is directed forward. When the posture of the seat is rotated at a predetermined angle around the Z-axis, There is a problem that it is difficult to safely protect passengers with the evolving logic.

For example, if the autonomous traveling vehicle is commercialized in the future and the passenger can automatically travel without operating the vehicle directly, the space inside the vehicle interior changes from a space for driving to a space for rest, The seat can be rotated so that the passenger's posture can freely change.

That is, if a collision occurs in a state where the passenger's attitude is freely changed, the passenger can not be safely protected through the existing airbag deployment logic. Thus, the optimized passenger protection system is required will be.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

JP 2013-216209A JP 1999-170961 A

SUMMARY OF THE INVENTION The present invention has been made in order to solve the conventional problems as described above, and it is an object of the present invention to provide a vehicle occupant protection system and a vehicle occupant protection system for optimizing the operation of a device for protecting a passenger according to a boarding posture, Method.

According to another aspect of the present invention, there is provided a passenger protection system for a vehicle, including: a position sensing unit receiving a rotation position of a seat; A collision sensing unit receiving a collision signal or a collision prediction signal of the vehicle; And a controller for determining a direction in which the collision occurs when the collision signal of the vehicle is input and controlling the airbag deployed around the passenger selectively in accordance with the collision direction and the rotation posture of the seat .

The control unit may control to deploy the side airbag close to the side door when the side collision of the vehicle is determined.

The side airbags provided on the left side of the left seat are deployed when the seat is rotated below the reference angle based on the seat posture with the front surface of the left seat facing forward, And controls deployment of the side airbag provided on the right side; The side airbags provided on the right side of the right seat are deployed when the seat is rotated below the reference angle with respect to the seat posture in which the front surface of the right seat is directed forward and the side airbags provided on the left side of the right seat It is possible to control to deploy the airbag.

The control unit may control to deploy the side airbag provided in the side door when the side collision of the vehicle is determined.

The control unit may control to deploy the curtain airbag when the side collision of the vehicle is determined.

The control unit may control to deploy the side airbags and the curtain airbags on the side where the collision occurred when the side collision of the vehicle is determined.

The control unit controls the front airbag to be deployed when the seat is rotated below the reference angle based on the seat posture in which the front face of the seat faces forward when the frontal collision of the vehicle is determined, The front airbag can be controlled to unfold.

The control unit controls the knee airbag to be deployed when the seat is rotated below the reference angle based on the seat posture in which the front surface of the seat is directed forward when the frontal collision of the vehicle is determined, The knee airbag can be controlled to be unfolded.

The control unit may control the active headrest to operate when the seat is rotated at a reference angle or more based on a seat posture in which the front surface of the seat is directed forward when the frontal collision of the vehicle is determined.

The control unit may selectively control the operation of the seat so that the front face of the seat faces forward or backward in accordance with the rotational posture of the seat when the collision prediction signal of the vehicle is input.

The control unit controls the movement of the sheet so that the front surface of the sheet rotates forward when the sheet is rotated below the reference angle based on the sheet posture in which the front surface of the sheet is forward, The movement of the sheet can be controlled so that the front surface of the sheet rotates rearward.

A passenger protecting method for a vehicle according to the present invention comprises: a rotational posture input step of receiving a rotational posture of a seat; A signal input step of receiving a collision signal or a collision prediction signal of the vehicle; And a control step of determining a direction in which a collision occurs when a collision signal of the vehicle is inputted and controlling the airbag deployed around the passenger selectively in accordance with the collision direction and the rotation posture of the seat have.

According to the above-mentioned problem solving means, the present invention is characterized by determining the collision direction of the vehicle and the rotation posture of the seat, and selecting an airbag cushion capable of safely protecting the passenger from impact among the various airbag cushions in accordance with these conditions, . Therefore, even if a collision accident occurs in a state in which the seat posture is rotated at a predetermined angle with respect to the Z axis, the airbag is selectively deployed optimally, thereby effectively protecting passengers aboard the vehicle from impacts have.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining a state in which a passenger's posture is changed in an autonomous vehicle; FIG.
2 is a view for explaining an operational flow of an apparatus for protecting a passenger in the event of a side collision under a passenger protecting system for a vehicle according to the present invention.
3 is a view for explaining an operational flow of an apparatus for protecting passengers when a head-on collision occurs under a passenger protecting system for a vehicle according to the present invention.
4 is a block diagram illustrating a process of a vehicle passenger protection method according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The passenger protection system for a vehicle according to the present invention mainly comprises an attitude sensing unit (1), a collision sensing unit (3), and a control unit (5).

2 and 3, the attitude sensing unit 1 senses and receives the rotation attitude of the seat, and recognizes the passenger's attitude. For example, the attitude sensing unit 1 A sensor such as a seat rotation angle sensor, a headrest position sensor, and a vision sensor may be used.

The collision sensing unit 3 senses and inputs a collision signal or a collision prediction signal of the vehicle. For example, the collision sensing unit 3 may be a collision sensor and a collision prediction sensor.

The collision sensor receives the frontal collision signal of the vehicle and can be installed on the front of the vehicle. The collision prediction sensor receives a side collision signal of the vehicle, and a plurality of collision sensors can be installed on the side of the vehicle.

Next, the control unit 5 determines the direction in which the collision occurred when the collision signal of the vehicle is input, and controls the airbag deployed around the passenger in accordance with the collision direction and the rotation posture of the seat to selectively deploy the airbag.

Here, the control unit 5 may be an integrated control device for controlling the operation of the seat, which will be described later, while controlling the deployment of the airbag, and may also include an ACU (airbag control device) The seat ECU may be provided separately.

That is, when the signals inputted from the position sensing unit 1 and the collision sensing unit 3 are input to the control unit 5, the control unit 5 determines the collision direction of the vehicle and the rotation posture of the seat, To selectively inflate and deploy an airbag cushion that can safeguard passengers from shock among the various airbag cushions.

Therefore, even if a collision occurs when the seat posture is traveled in a state in which the seat posture is rotated at a constant angle with respect to the Z axis of the vehicle body, the airbag is optimally deployed to selectively deploy the airbag. As shown in FIG.

Referring to FIG. 2, as a preferred development example of the side airbag (SAB) of the present invention, it is possible to control to deploy a side airbag (SAB) close to the side door at the time of side collision judgment of the vehicle.

Here, the side airbags (SAB) may be provided on both sides of the seat.

In addition, the seat may be a driver seat and an escrow seat provided on all seats in the case of the present invention.

Specifically, when the control unit 5 determines that the side collision of the vehicle is detected, the control unit 5 controls to deploy the side airbag on the side where the collision has occurred.

For example, when a collision occurs on the left side of the vehicle, the side airbag provided on the left side of the left seat is deployed when the seat is rotated below the reference angle based on the seat posture with the front surface of the left seat facing forward.

When the seat is rotated at a reference angle or more with reference to the seat posture in which the front surface of the left seat is directed forward, the side airbag provided at the right side of the left seat is controlled to be deployed.

For example, assuming that the normal seat rotation angle of the front face of the seat toward the front face of the vehicle is 0, the left seat is rotated clockwise less than 90 degrees about the Z axis of the vehicle body, When a collision occurs, the front surface of the seat is rotated at an angle to the front than the rear, and the left side airbag is deployed to protect the left side portion of the passenger on the driver's seat.

On the other hand, when the left seat is rotated 90 degrees or more clockwise about the Z axis of the vehicle body and collision occurs on the left side, the front surface of the seat is rotated at an angle to the rear than the front, The right side airbag is deployed to protect the right side portion of the passenger on the driver's seat.

In addition, when a collision occurs on the right side of the vehicle, the side airbag provided on the right side of the right seat is deployed when the seat is rotated below the reference angle based on the seat posture in which the front surface of the right seat is directed forward.

When the seat is rotated at a reference angle or more with reference to the seat posture in which the front surface of the right seat is directed forward, the side airbag provided at the left side of the right seat is deployed.

For example, assuming that the normal seat rotation angle of the front face of the seat toward the front face of the vehicle is 0, the right seat is rotated in the counterclockwise direction less than 90 degrees about the Z axis of the vehicle body, When a collision occurs, the front surface of the seat is rotated at an angle to the front than the rear, and the right side airbag is deployed to protect the right side portion of the passenger on the same passenger seat.

On the other hand, when the right seat is rotated 90 degrees counterclockwise around the Z axis of the vehicle body and the collision occurs on the right side, the front surface of the seat is rotated at a rearward angle than the front, The left side airbag is deployed to protect the left side portion of the passenger on the same passenger seat.

As another development example of the side airbag according to the present invention, when the side collision of the vehicle is determined, the side airbag provided in the side door can be controlled to be deployed.

Here, the side airbags may be provided on the side door trim. When the side collision of the vehicle is judged, the control unit 5 can control to selectively deploy only the side airbags on the side where the side collision has occurred.

That is, the side airbag provided in the left side door trim can be deployed at the time of the left side collision, and the side airbag provided at the right side door trim can be deployed at the time of the right side collision.

Further, the present invention can control to deploy the curtain airbag (CAB) when judging the side collision of the vehicle.

At this time, the curtain airbag can also be controlled to selectively deploy only the curtain airbag on the side where the side impact has occurred.

Referring to FIG. 3, the front airbag may be deployed or unfolded according to the posture of the seat when a frontal collision of the vehicle occurs.

Specifically, when the frontal collision of the vehicle is determined, the front airbag is deployed when the seat is rotated below the reference angle based on the seat posture in which the front surface of the seat is directed forward.

When the seat is rotated at a reference angle or more with reference to the seat posture in which the front surface of the seat is directed forward, the front airbag is controlled to be unfolded.

For example, when assuming that the normal seat rotation angle of the front face of the seat toward the front face of the vehicle is 0, the front seat collision occurs when the left seat is rotated clockwise less than 90 degrees about the Z axis of the vehicle body The front surface of the seat is rotated at a forward angle with respect to the rear, so that the passenger on the driver's seat is safely protected by deploying the driver's seat front airbag (DAB).

The driver's seat has been described as an example of the above, but the same applies to the case of a passenger seat. In this case, the passenger on the same passenger seat is protected by deploying the passenger's seat airbag (PAB).

On the other hand, when a frontal collision occurs in a state where the left seat is rotated 90 degrees or more in the clockwise direction about the Z axis of the vehicle body, the front surface of the seat is rotated at a rearward angle than the front. However, if the front airbag is deployed at this time, the airbag cushion strikes the rear surface of the seatback due to the deployment pressure of the airbag cushion, so that the passenger may be impacted.

This also applies to the case of a passenger seat, in which case the front passenger airbag is controlled not to be deployed.

In addition, when the frontal collision of the vehicle is determined, the control unit 5 controls the knee airbag (KAB) to deploy when the seat is rotated below the reference angle based on the seat posture in which the front surface of the seat is directed forward.

Then, when the seat is rotated at a reference angle or more with reference to the seat posture in which the front surface of the seat is directed forward, the knee airbag (KAB) is unfolded.

In other words, in a state in which the front surface of the seat is rotated at an angle more forward than the rear direction, the knee airbag is deployed to prevent the passenger on the driver's seat and the passenger seat from falling on the knee, In the rotated state, the passenger protection effect due to the deployment of the knee airbag at the time of the frontal collision is difficult, so that the knee airbag can be prevented from being deployed.

However, the control unit 5 can control the active headrest to operate when the seat is rotated at a reference angle or more with reference to the seat posture in which the front face of the seat faces forward when the frontal collision of the vehicle is determined.

That is, in a state in which the front surface of the seat is further rotated at an angle to the rear than the front, impact due to the headrest may be applied to the back of the passenger at the time of frontal collision, so that the active headrest is controlled .

2 and 3, when the collision prediction signal of the vehicle is inputted, the operation of the seat can be selectively controlled so that the front of the seat is directed forward or backward according to the rotational posture of the seat.

Specifically, when the collision prediction signal of the vehicle is inputted, the control unit 5 controls the seat 5 so that the front surface of the seat is rotated forward, when the seat is rotated below the reference angle, Control the movement.

When the seat is rotated at a reference angle or more with reference to the seat posture in which the front surface of the seat is directed forward, the movement of the seat is controlled so that the front surface of the seat rotates rearward.

For example, assuming that the normal sheet rotation angle of the front face of the seat toward the front face of the vehicle is 0, the left and right seat are rotated clockwise and counterclockwise less than 90 degrees about the Z axis of the vehicle body When the collision prediction is detected in the state, the front surface of the seat is further rotated at an angle toward the front than the rear, and the seat is rotated so that the seat rotation angle is 0 DEG.

On the other hand, if the collision prediction is sensed while the left and right seats are rotated 90 degrees or more clockwise and counterclockwise around the Z axis of the vehicle body, the front surface of the seat is further rotated backward The sheet is rotated so that the rotation angle of the sheet is 180 DEG, and the front surface of the sheet is rotated so as to face rearward.

Then, when a side or frontal collision of the vehicle occurs, the airbag is selectively deployed according to the airbag deployment control method when the collision occurs, thereby safely protecting the passenger.

Referring to FIG. 4, the passenger protecting method for a vehicle according to the present invention may include a rotational posture input step S10, a signal input step S20, and a control step S30.

More specifically, in the rotational posture input step (S10), the rotation posture of the seat is input.

In the signal input step S20, a collision signal or a collision prediction signal of the vehicle is input.

In addition, in the control step S30, when the collision signal of the vehicle is inputted, the direction in which the collision occurs is determined, and the airbag provided around the passenger is selectively developed according to the collision direction and the rotation posture of the seat.

As described above, according to the present invention, it is possible to judge the collision direction of the vehicle and the rotational posture of the seat on the basis of the signals inputted to the control unit 5, and safely protect the passenger from shock among the various airbag cushions The airbag cushion is inflated and deployed to selectively deploy the airbag even when a collision accident occurs in a state where the seat posture is rotated at a predetermined angle with respect to the Z axis of the vehicle body. To protect them from the impact of a collision accident.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the specific embodiments set forth herein; rather, .

1: attitude sensing unit 3: collision sensing unit
5:
S10: Rotational attitude input step S20: Signal input step
S30: control step

Claims (12)

delete A posture sensing unit for receiving a rotational posture of the seat;
A collision sensing unit receiving a collision signal or a collision prediction signal of the vehicle; And
And a control unit for determining a direction in which a collision occurs when a collision signal of the vehicle is inputted and controlling the airbag deployed around the passenger selectively in accordance with the collision direction and the rotation posture of the seat;
Wherein the control unit controls to deploy the side airbags close to the side doors when determining a side collision of the vehicle. The method of claim 2,
Wherein,
The side airbag provided on the left side of the left seat is opened when the seat is rotated below the reference angle with respect to the seat posture in which the front surface of the left seat is directed forward and when the seat is rotated at a reference angle or more, Control to deploy the airbag;
The side airbags provided on the right side of the right seat are deployed when the seat is rotated below the reference angle with respect to the seat posture in which the front surface of the right seat is directed forward and the side airbags provided on the left side of the right seat So as to deploy the airbag. delete The method of claim 2,
Wherein the control unit controls to deploy the curtain airbag when the side collision of the vehicle is determined. delete A posture sensing unit for receiving a rotational posture of the seat;
A collision sensing unit receiving a collision signal or a collision prediction signal of the vehicle; And
And a control unit for determining a direction in which a collision occurs when a collision signal of the vehicle is inputted and controlling the airbag deployed around the passenger selectively in accordance with the collision direction and the rotation posture of the seat;
The control unit controls to deploy the front airbag when the seat is rotated below the reference angle based on the seat posture in which the front surface of the seat is facing forward when the frontal collision of the vehicle is determined;
And controls the front airbag to be unfolded when the seat is rotated beyond the reference angle. A posture sensing unit for receiving a rotational posture of the seat;
A collision sensing unit receiving a collision signal or a collision prediction signal of the vehicle; And
And a control unit for determining a direction in which a collision occurs when a collision signal of the vehicle is inputted and controlling the airbag deployed around the passenger selectively in accordance with the collision direction and the rotation posture of the seat;
The control unit controls to deploy the knee airbag when the seat is rotated below the reference angle based on the seat posture in which the front surface of the seat is facing forward when the frontal collision of the vehicle is determined;
And controls the knee airbag to be unfolded when the seat is rotated beyond the reference angle. The method according to claim 7 or 8,
Wherein,
And controls the active headrest to operate when the seat is rotated at a reference angle or more based on a seat posture in which the front surface of the seat is directed forward when the frontal collision of the vehicle is determined. A posture sensing unit for receiving a rotational posture of the seat;
A collision sensing unit receiving a collision signal or a collision prediction signal of the vehicle; And
And a control unit for determining a direction in which a collision occurs when a collision signal of the vehicle is inputted and controlling the airbag deployed around the passenger selectively in accordance with the collision direction and the rotation posture of the seat;
Wherein the controller selectively controls the operation of the seat so that the front face of the seat faces forward or backward according to the rotational posture of the seat when the collision prediction signal of the vehicle is inputted. The method of claim 10,
Wherein,
The movement of the seat is controlled so that the front surface of the seat rotates forward when the seat is rotated below the reference angle based on the seat posture in which the front surface of the seat is directed forward,
And controls the movement of the seat so that the front surface of the seat rotates rearward when the seat is rotated beyond the reference angle. delete
KR1020140144162A 2014-10-23 2014-10-23 Method and system for protecting passenger in vehicle KR101611087B1 (en)

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