KR20210116737A - Operating system and method of safety device for vehicle - Google Patents

Abstract

an input unit that detects a collision of a vehicle and senses or receives information about a passenger in the vehicle or external information of the vehicle; a determination unit configured to establish a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information when the input unit detects a collision; and an operation unit for operating the vehicle safety device based on the occupant protection strategy established by the determination unit; an operating system for a vehicle safety device is introduced.

Description

OPERATING SYSTEM AND METHOD OF SAFETY DEVICE FOR VEHICLE

The present invention relates to a system and method for operating a safety device for a vehicle, and to the operation of a safety device for deploying an airbag to protect an occupant.

BACKGROUND ART An air bag is a device for protecting a occupant in a vehicle from the impact when a vehicle crash occurs, and is a representative occupant protection device installed in a vehicle.

In recent years, as autonomous driving technology has become a reality, the postures of passengers including the driver are changed in various ways, so technologies for recognizing the posture of the occupant using a sensor such as a camera and deploying the airbag according to the posture of the occupant are being developed.

However, according to the prior art, it is possible to recognize only the behavior of the occupant's limited body parts, and accordingly, there is a problem in that it is difficult to consider the behavior change of the occupant according to various impact directions or locations.

In addition, it was difficult to reflect the difference in height of the occupant, and there was a problem in that the response to a subsequent collision that may occur depending on the surrounding situation was insufficient.

The matters described as the above background art are only for improving the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

KR 10-2016-0024256 A

The present invention has been proposed to solve this problem, and it is an object of the present invention to provide a system and method for operating a safety device for a vehicle that predicts the behavior of the occupant according to the occupant's state inside the vehicle, the vehicle's collision state, etc. and reflects it in the operation of the airbag. .

An operating system of a vehicle safety device according to the present invention for achieving the above object includes: an input unit for sensing a collision of a vehicle, sensing information about a occupant in the vehicle or external information of the vehicle, or receiving an input from the outside; a determination unit configured to establish a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information when the input unit detects a collision; and an operation unit that operates the vehicle safety device based on the occupant protection strategy established by the determination unit.

The input unit senses occupant information through an internal detection sensor that detects the interior of the vehicle, and the determination unit determines the body shape, posture or position of the occupant based on the sensed occupant information, and the determined body type, posture or position of the occupant It is possible to predict the behavior of the occupant based on

The determination unit may determine the possibility of collision between the plurality of passengers by using the expected behavior of the passengers.

The input unit senses vehicle exterior information through an external detection sensor that detects the exterior of the vehicle, and the determination unit determines collision information or terrain information of the vehicle based on the sensed vehicle exterior information, and the determined collision information or terrain information Based on this, the vehicle's behavior can be predicted.

The input unit receives vehicle external information through a communication device that communicates with the outside of the vehicle, and the determination unit determines a collision state or terrain state of the vehicle based on the received vehicle external information, and determines the collision state or terrain state. Based on this, the behavior of the vehicle can be predicted.

The safety device for a vehicle includes a plurality of airbags, and the operation unit may operate to deploy some or all of the plurality of airbags according to an established occupant protection strategy.

In the input unit, information outside the vehicle is sensed or input through an external detection sensor that detects the outside of the vehicle or a communication device that communicates with the outside of the vehicle, and in the determination unit, after the collision of the vehicle based on the sensed or input outside information of the vehicle It is possible to determine the possibility of subsequent collisions occurring in

The operation unit may preemptively operate the vehicle safety device based on the possibility of a subsequent collision determined by the determination unit.

The method of operating a safety device for a vehicle according to the present invention for achieving the above object includes the steps of sensing or receiving external information of a vehicle occupant information or external information of the vehicle; establishing a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information; and operating a vehicle safety device based on the established occupant protection strategy.

Prior to the step of establishing the occupant's protection strategy, the step of detecting the collision of the vehicle; further comprising, in the step of establishing the occupant's protection strategy, sensing or input occupant information or external information when the collision of the vehicle is detected Based on the information, a occupant protection strategy can be established.

In the sensing or input step, occupant information is sensed through an internal detection sensor that detects the inside of the vehicle, and in the step of establishing a occupant protection strategy, the body shape, posture, or position of the occupant is determined based on the sensed occupant information and predicts the behavior of the occupant based on the determined body type, posture, or location of the occupant, and may establish a occupant protection strategy based on the predicted behavior of the occupant.

In the step of sensing or receiving input, information outside the vehicle is sensed through an external detection sensor that detects the outside of the vehicle, and in the step of establishing a occupant protection strategy, collision information or terrain information of the vehicle based on the sensed outside information of the vehicle , predicts vehicle behavior based on the determined collision information or terrain information, and establishes a occupant protection strategy based on the predicted vehicle behavior.

In the step of sensing or receiving input, information outside the vehicle is received from the outside through a communication device that communicates with the outside of the vehicle, and in the step of establishing a occupant protection strategy, the collision state or terrain of the vehicle is based on the received information outside the vehicle. It is possible to determine the state, predict the vehicle behavior based on the determined collision state or terrain state, and establish a occupant protection strategy based on the predicted vehicle behavior.

In the step of sensing or receiving input, information outside the vehicle is sensed or input through an external detection sensor that detects the outside of the vehicle or a communication device that communicates with the outside of the vehicle, and after the step of operating the vehicle safety device, the sensing or input is received determining a possibility of a subsequent collision occurring after the collision of the vehicle based on information outside the vehicle; and preemptively operating a vehicle safety device based on the determined possibility of a subsequent collision.

According to the operating system and method of the safety device for a vehicle of the present invention, it has the effect of minimizing the injury of the occupant by deploying the airbag in anticipation of the occupant's behavior.

In addition, by deploying the airbag in anticipation of the vehicle's behavior, it has an effect of anticipating the vehicle's behavior due to a collision and deploying the airbag.

In addition, the possibility of a subsequent collision that may occur after the first collision of the vehicle is determined, and accordingly, a preemptive response to the subsequent collision is possible.

1 is a configuration diagram of an operating system of a vehicle safety device according to an embodiment of the present invention.
2 is a flowchart of a method of operating a safety device for a vehicle according to an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments of the present invention disclosed in the present specification or application are only exemplified for the purpose of describing the embodiments according to the present invention, and the embodiments according to the present invention may be implemented in various forms. and should not be construed as being limited to the embodiments described in the present specification or application.

Since the embodiment according to the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention with respect to a specific disclosed form, and should be understood to include all changes, equivalents or substitutes included in the spirit and scope of the present invention.

Terms such as first and/or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another, for example, without departing from the scope of rights according to the inventive concept, a first component may be termed a second component, and similarly The second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the described features, numbers, steps, operations, components, parts, or combinations thereof exist, and include one or more other features or numbers. , it should be understood that it does not preclude the existence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as meanings consistent with the context of the related art, and unless explicitly defined in the present specification, they are not to be interpreted in an ideal or excessively formal meaning. .

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a configuration diagram of an operating system of a safety device 31 for a vehicle according to an embodiment of the present invention.

Referring to FIG. 1 , the operating system of the vehicle safety device 31 according to an embodiment of the present invention detects a collision of a vehicle, and an input unit that senses or receives external information of occupants in the vehicle or information of the vehicle. (10); a determination unit 20 that, when the input unit 10 detects a collision, establishes a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information; and an operation unit 30 that operates the vehicle safety device 31 based on the occupant protection strategy established by the determination unit 20 .

The input unit 10 may directly sense the information of the occupant in the vehicle or may receive an input from the outside. Here, the occupant information may be information including the body type, weight, posture, or position of the occupant, and further may be information based on recognizing who the occupant is.

Specifically, the input unit 10 receives an input of whether the occupant is an adult male, female, or child, receives an input of the posture where the occupant's joints are located, or the position in which the occupant is boarded on the seat of the occupant information. can be sensed or received as input.

Also, the input unit 10 may directly sense external information of the vehicle or receive an input from the outside. Here, the external information of the vehicle may be information including obstacles or terrain around the vehicle.

Specifically, the input unit 10 may directly sense or receive an input from the outside of which obstacles (other vehicles, motorcycles, etc.) are located around the vehicle or the positional relationship with the obstacles. In addition, information on the topography of the road on which the vehicle is traveling may be directly sensed or input from the outside.

The input unit 10 may include a collision sensor 11 (FIS: Front Impact Sensor, SIS: Side Impact Sensor). The collision sensor 11 may directly sense whether a collision has occurred in the vehicle. Also, the collision sensor 11 may sense a collision position of the vehicle, such as a front collision, a side collision, or a rear collision.

The determination unit 20 may determine a vehicle collision state when the input unit 10 detects a vehicle collision. That is, while the input unit 10 continuously senses or receives occupant information and external information of the vehicle, the determination unit 20 may establish a occupant protection strategy only when a collision of the vehicle is detected.

Also, the determination unit 20 may establish a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information.

Specifically, the determination unit 20 may establish an optimal occupant protection strategy according to the collision state of the vehicle by using the sensed or input external information of the vehicle. In addition, the determination unit 20 may establish an optimal protection strategy according to the occupant status by using the sensed or input occupant information.

The operation unit 30 may operate the vehicle safety device 31 according to the established occupant protection strategy. Here, the vehicle safety device 31 is exemplified by the airbag 31, but may also include a passenger protection device such as a seat belt.

The operation unit 30 may operate only a portion of the plurality of airbags 31 according to the established occupant protection strategy and control the remaining portions not to be deployed, and the deployment timing, deployment speed, and deployment direction of the airbag 31 . It can be controlled to change the back.

The input unit 10 , the determination unit 20 , and the operation unit 30 according to an exemplary embodiment of the present invention are controllers included in a vehicle, and may be included in an Electronic Control Unit (ECU) or an Airbag Control Unit (ACU). .

In particular, the controller uses a non-volatile memory (not shown) configured to store data relating to an algorithm configured to control the operation of various components of the vehicle or software instructions for reproducing the algorithm, and the data stored in the memory to hereinafter be It may be implemented with a processor (not shown) configured to perform the described operations. Here, the memory and the processor may be implemented as separate chips. Alternatively, the memory and processor may be implemented as a single chip integrated with each other. A processor may take the form of one or more processors.

According to the operating system and method of the safety device 31 for a vehicle of the present invention, it has an effect of minimizing an occupant's injury by deploying the airbag 31 in anticipation of the occupant's behavior.

In one embodiment, the input unit 10 senses occupant information through the internal detection sensor 12 that detects the inside of the vehicle, and the determination unit 20 senses the body shape and posture of the occupant based on the sensed occupant information. Alternatively, the position may be determined, and the behavior of the occupant may be predicted based on the determined body type, posture, or position of the occupant.

The internal detection sensor 12 may be an internal image sensor that captures the interior of the vehicle. The internal image sensor may be a 2D camera, a 3D camera, or a combination thereof. In particular, the 3D camera may be a structured light camera, a stereo camera or a depth camera (TOF Camera). The internal image sensor may detect the joint position of the occupant by photographing the inside of the vehicle with occupant information.

In addition, the internal detection sensor 12 may be a sensor for detecting the seat position and angle of the occupant, or a pressure sensor for detecting the pressure applied to the seat. That is, the internal detection sensor 12 may indirectly sense information about the occupant in the vehicle through the seat.

The determination unit 20 may determine the body type, posture, or position of the occupant using the occupant information sensed by the internal detection sensor 12 . Also, the determination unit 20 may predict the behavior of the occupant located inside the vehicle by using the vehicle collision information and the occupant information sensed by the collision sensor 11 .

Specifically, the determination unit 20 determines whether the occupant moves forward or laterally, whether the wearer's head is moved forward by moving forward while wearing a seat belt, or whether the wearer's head is moved by sliding on the seat. It is possible to predict the behavior of the occupant, etc.

The determination unit 20 may determine the possibility of collision between a plurality of passengers by using the expected behavior of the passengers.

The determination unit 20 may predict a behavior of each occupant when a plurality of occupants exist in the vehicle, and may predict a collision behavior for each occupant. Also, the determination unit 20 may determine whether a plurality of passengers collide with each other by determining whether the behaviors of the respective passengers overlap.

The operation unit 30 may operate the safety device 31 to prevent a collision between the occupants when the determination unit 20 determines that there is a possibility of collision between the occupants.

In one embodiment, when a collision possibility exists between passengers who are respectively seated in the driver's seat and the front passenger's seat, a far side air bag located in the center console may be deployed.

Accordingly, by deploying the airbag 31 in anticipation of the occupant's behavior, it has the effect of minimizing the occupant's injury due to the collision of the vehicle.

The input unit 10 senses vehicle external information through an external detection sensor 13 that detects the exterior of the vehicle, and the determination unit 20 receives vehicle collision information or terrain information based on the sensed vehicle external information. and may predict the vehicle's behavior based on the determined collision information or terrain information.

The vehicle external detection sensor 13 is an external image sensor that captures the exterior of the vehicle, and may be a camera sensor. External image sensors may be positioned at the front, rear, and side of the vehicle to detect obstacles by photographing the surroundings of the vehicle.

In addition, the external detection sensor 13 of the vehicle may include a radar sensor, a lidar sensor, or a GPS sensor 15 . The radar sensor and the lidar sensor may detect obstacles around the vehicle, and the GPS sensor 15 may accurately detect the location of the vehicle.

The input unit 10 may be connected to the memory 16 in which map information is pre-stored, and the determination unit 20 uses the location of the vehicle sensed by the GPS sensor 15 and map information stored in the memory 16 around the vehicle. geographical information can be determined. That is, the determination unit 20 may determine the road information on which the vehicle is located based on the vehicle external information.

The input unit 10 may sense vehicle external information through the external detection sensor 13 , and the determination unit 20 may determine vehicle collision information and terrain information using the sensed vehicle external information.

In particular, the determination unit 20 may determine the collision location between the vehicle and the obstacle or the type of the collision obstacle as collision information of the vehicle. In addition, the determination unit 20 may determine a road surface condition of a road on which a vehicle moved due to a collision is located, or a terrain such as a bridge or a cliff, based on the terrain information around the vehicle.

The input unit 10 receives vehicle external information through the communication device 14 that communicates with the outside of the vehicle, and the determination unit 20 determines a collision state or a terrain state of the vehicle based on the received vehicle external information. and the vehicle's behavior can be predicted based on the determined collision state or terrain state.

The communication device 14 may communicate with a separate device external to the vehicle. In one embodiment, the communication device 14 is a device for V2X communication, and may be a device capable of communication such as vehicle-to-vehicle communication (V2V) and vehicle-to-infrastructure communication (V2I).

That is, the input unit 10 may receive vehicle external information from the outside of the vehicle through the communication device 14 . For example, the input unit 10 communicates with another vehicle outside the vehicle to receive location information and speed information of the other vehicle, and the determination unit 20 may determine the possibility of a subsequent collision with the vehicle in which the collision occurred. .

Accordingly, by deploying the airbag 31 in anticipation of the vehicle's behavior, there is an effect of deploying the airbag 31 in anticipating the vehicle's behavior due to a collision.

The vehicle safety device 31 includes a plurality of airbags 31 , and the operation unit 30 may operate to deploy some or all of the plurality of airbags 31 according to an established occupant protection strategy.

Here, the plurality of airbags 31 may include a driver's airbag, a passenger's airbag, a side airbag, a roof airbag, and the like. The operation unit 30 selectively deploys the airbag 31 based on a occupant protection strategy established using occupant information or external information of the vehicle, or controls the deployment speed, deployment direction, and deployment timing of the airbag 31. can be adjusted

In addition, in the input unit 10, the vehicle external information is sensed or input through the external detection sensor 13 that detects the outside of the vehicle or the communication device 14 that communicates with the outside of the vehicle, and in the determination unit 20, It is possible to determine the possibility of a subsequent collision occurring after a vehicle collision based on the sensed or input vehicle external information.

The input unit 10 senses or receives information outside the vehicle, and the determination unit 20 may determine the possibility of a subsequent collision of the vehicle using the information outside the vehicle.

In an embodiment, the determination unit 20 may determine whether the vehicle subsequently collides with an obstacle and whether there is a possibility of overturning of the vehicle according to a behavior of the vehicle expected by the collision.

In another embodiment, the determination unit 20 may determine whether there is a possibility that the vehicle will subsequently collide with the surrounding vehicle by communication with vehicles located around the vehicle in which the collision has occurred.

The operation unit 30 may preemptively operate the vehicle safety device 31 based on the possibility of a subsequent collision determined by the determination unit 20 .

That is, when a complex collision situation due to a subsequent collision is predicted by the determination unit 20 , the operation unit 30 preemptively operates the vehicle safety device 31 before the subsequent collision occurs to prevent injury to the occupant in advance. can be prevented in

Accordingly, the possibility of a subsequent collision that may occur after the first collision of the vehicle is determined, and accordingly, a preemptive response to the subsequent collision is possible.

2 is a flowchart of a method of operating the safety device 31 for a vehicle according to an embodiment of the present invention.

Referring further to FIG. 2 , the method of operating the safety device 31 for a vehicle according to an embodiment of the present invention includes the steps of sensing or receiving external information of a vehicle occupant or external information of the vehicle (S100); establishing a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information (S300); and operating the vehicle safety device 31 based on the established occupant protection strategy (S400).

Prior to the step (S300) of establishing the occupant protection strategy, the step (S200) of detecting a collision of the vehicle; further comprising; in the step (S300) of establishing a protection strategy for the occupant, when the collision of the vehicle is detected It is possible to establish a occupant protection strategy based on the occupant information sensed or input from the occupant or external information.

That is, only when the collision of the vehicle is detected, the occupant protection strategy may be established based on the sensed or input occupant information or external information.

In addition, in the sensing or receiving step ( S100 ), the occupant information is sensed through the internal detection sensor 12 that detects the inside of the vehicle, and in the step ( S300 ) of establishing a occupant protection strategy, the sensed occupant information is It is possible to determine the body type, posture, or position of the occupant based on the occupant's body shape, posture or position, predict the occupant's behavior based on the determined body type, posture or position, and establish a occupant protection strategy based on the predicted occupant's behavior.

In the sensing or receiving step (S100), the vehicle external information is sensed through the external detection sensor 13 that detects the outside of the vehicle, and in the step (S300) of establishing a occupant protection strategy, the sensed vehicle external information is Based on the collision information or terrain information of the vehicle, it is possible to predict the vehicle behavior based on the determined collision information or terrain information, and to establish a occupant protection strategy based on the predicted vehicle behavior.

In the sensing or input receiving step ( S100 ), external vehicle information is received from the outside through the communication device 14 communicating with the outside of the vehicle, and in the step ( S300 ) of establishing a occupant protection strategy, the received external vehicle information It is possible to determine the collision state or terrain state of the vehicle based on the

In the sensing or input receiving step (S100), the vehicle external information is sensed or inputted through the external detection sensor 13 that detects the outside of the vehicle or the communication device 14 that communicates with the outside of the vehicle, and the vehicle safety device 31 ) after the operation (S400), determining the possibility of a subsequent collision occurring after the collision of the vehicle based on the sensed or input vehicle external information (S500); and preemptively operating the vehicle safety device 31 based on the determined possibility of a subsequent collision (S600).

Although shown and described with respect to specific embodiments of the present invention, it is understood in the art that the present invention can be variously improved and changed without departing from the spirit of the present invention provided by the following claims. It will be obvious to those of ordinary skill in the art.

10: input unit 20: judgment unit
30: operation part 31: airbag

Claims (14)

an input unit that detects a collision of a vehicle and senses or receives information about a passenger in the vehicle or external information of the vehicle;
a determination unit configured to establish a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information when the input unit detects a collision; and
An operation system for a vehicle safety device comprising a; an operation unit for operating the vehicle safety device based on the occupant protection strategy established by the determination unit. The method according to claim 1,
In the input unit, occupant information is sensed through an internal detection sensor that detects the inside of the vehicle,
The determining unit determines the body shape, posture, or position of the occupant based on the sensed occupant information, and predicts the occupant's behavior based on the determined body shape, posture or position of the occupant. 3. The method according to claim 2,
The operating system of the vehicle safety device, characterized in that the determination unit determines the possibility of collision between the plurality of passengers by using the expected behavior of the occupants. The method according to claim 1,
The input unit senses information outside the vehicle through an external detection sensor that detects the outside of the vehicle,
The determining unit determines collision information or terrain information of the vehicle based on the sensed vehicle external information, and predicts a vehicle behavior based on the determined collision information or terrain information. The method according to claim 1,
In the input unit, the vehicle external information is received through a communication device that communicates with the outside of the vehicle,
The determining unit determines a collision state or terrain state of the vehicle based on the received vehicle external information, and predicts a vehicle behavior based on the determined collision state or terrain state. The method according to claim 1,
The vehicle safety device includes a plurality of airbags,
The operating system of the safety device for a vehicle, characterized in that the operation unit operates to deploy some or all of the plurality of airbags according to the established occupant protection strategy. The method according to claim 1,
In the input unit, the vehicle external information is sensed or received through an external detection sensor that detects the outside of the vehicle or a communication device that communicates with the outside of the vehicle,
The operating system of the vehicle safety device, characterized in that the determination unit determines the possibility of a subsequent collision occurring after the vehicle collision based on the sensed or input vehicle external information. 8. The method of claim 7,
The operation system of the vehicle safety device, characterized in that the operation unit preemptively operates the vehicle safety device based on the possibility of a subsequent collision determined by the determination unit. Sensing or receiving external information of the occupant in the vehicle or external information of the vehicle;
establishing a occupant protection strategy according to a vehicle collision based on the sensed or input occupant information or external information; and
Operating a vehicle safety device comprising; operating the vehicle safety device based on the established occupant protection strategy. 10. The method of claim 9,
Prior to the step of establishing a occupant protection strategy, detecting a collision of the vehicle; further comprising,
In the step of establishing the occupant's protection strategy, when the collision of the vehicle is detected, the occupant's protection strategy is established based on the sensed or input occupant information or external information. 10. The method of claim 9,
In the sensing or input step, occupant information is sensed through an internal detection sensor that detects the inside of the vehicle,
In the step of establishing the occupant protection strategy, the body shape, posture, or position of the occupant is determined based on the sensed occupant information, the occupant's behavior is predicted based on the determined occupant's body shape, posture or position, and the expected occupant's A method of operating a safety device for a vehicle, characterized in that the occupant protection strategy is established based on the behavior. 10. The method of claim 9,
In the step of sensing or receiving input, information outside the vehicle is sensed through an external detection sensor that detects the outside of the vehicle,
In the step of establishing a occupant protection strategy, the vehicle collision information or terrain information is determined based on the sensed vehicle external information, the vehicle behavior is predicted based on the determined collision information or the terrain information, and the expected vehicle behavior A method of operating a safety device for a vehicle, characterized in that the occupant protection strategy is established based on the 10. The method of claim 9,
In the sensing or input receiving step, the vehicle external information is received from the outside through a communication device that communicates with the outside of the vehicle,
In the step of establishing the occupant protection strategy, the collision state or terrain state of the vehicle is determined based on the received vehicle external information, the vehicle behavior is predicted based on the determined collision state or the terrain state, and the expected vehicle behavior A method of operating a safety device for a vehicle, characterized in that the occupant protection strategy is established based on the 10. The method of claim 9,
In the sensing or input receiving step, the vehicle external information is sensed or inputted through an external detection sensor that detects the outside of the vehicle or a communication device that communicates with the outside of the vehicle,
After operating the vehicle safety device, determining the possibility of a subsequent collision occurring after the vehicle collision based on the sensed or input vehicle external information; and
Preemptively operating the vehicle safety device based on the determined possibility of a subsequent collision; the operating method of the vehicle safety device further comprising:

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