KR101338061B1 - Controll system and method for airbag with active-vent - Google Patents

Controll system and method for airbag with active-vent Download PDF

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KR101338061B1
KR101338061B1 KR1020110118708A KR20110118708A KR101338061B1 KR 101338061 B1 KR101338061 B1 KR 101338061B1 KR 1020110118708 A KR1020110118708 A KR 1020110118708A KR 20110118708 A KR20110118708 A KR 20110118708A KR 101338061 B1 KR101338061 B1 KR 101338061B1
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time
inflator
active vent
active
operating
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KR1020110118708A
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KR20130053130A (en
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서정욱
최재호
신효섭
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기아자동차주식회사
현대자동차주식회사
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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
    • B60R21/239—Inflatable members characterised by their venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • 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
    • B60R21/01512—Passenger detection systems
    • B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
    • 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
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01211—Expansion of air bags
    • 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
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/263—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using a variable source, e.g. plural stage or controlled output
    • B60R2021/2633—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using a variable source, e.g. plural stage or controlled output with a plurality of inflation levels
    • 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

Abstract

순차적인 작동을 통하여 에어백 쿠션을 2 단계로 나누어 팽창시키는 제1인플레이터 및 제2인플레이터; 작동부의 동작에 따라 선택적으로 벤트를 형성하는 액티브벤트; 및 제1전개조건의 만족시 제1인플레이터를 작동시키고, 제1시간동안 제2전개조건을 만족하면 제2인플레이터를 작동시키며 만족하지 못할 경우 액티브벤트를 작동시키고, 제2인플레이터가 작동된 경우에는 제2시간 후 액티브벤트를 작동시키는 제어부;를 포함하는 액티브벤트 에어백 제어시스템 및 그 제어방법이 소개된다.A first inflator and a second inflator configured to expand the airbag cushion in two stages through sequential operation; An active vent selectively forming a vent according to an operation of the operating unit; And operating the first inflator when the first development condition is satisfied, operating the second inflator if the second development condition is satisfied during the first time period, and if the second inflator is operated, operating the active vent if not satisfied. An active vent airbag control system including a control unit for operating an active vent after a second time and a control method thereof are introduced.

Description

액티브벤트 에어백 제어시스템 및 그 제어방법 {CONTROLL SYSTEM AND METHOD FOR AIRBAG WITH ACTIVE-VENT}Active Vent Airbag Control System and Control Method {CONTROLL SYSTEM AND METHOD FOR AIRBAG WITH ACTIVE-VENT}

본 발명은 액티브벤트가 적용된 차량에서, 효과적으로 작동 타이밍을 설정함으로써 승객을 최대한 보호할 수 있도록 하는 액티브벤트 에어백 제어시스템 및 그 제어방법에 관한 것이다.
The present invention relates to an active vent airbag control system and a method of controlling the same, which effectively protects a passenger by setting an operation timing effectively in a vehicle to which an active vent is applied.

최근 차량의 안전에 대한 관심이 증대되면서, 다양한 방법으로 에어백을 전개시키는 것에 대하여 기술이 제시되고 있다.Recently, with increasing interest in vehicle safety, techniques have been proposed for deploying airbags in various ways.

대표적인 예로서, 에어백의 인플레이터를 두 가지로 나누어 제1단계와 제2단계의 전개를 통하여 시간차를 두고 쿠션의 내압을 증대시키는 기술이 있다.As a representative example, there is a technique of dividing the inflator of the airbag into two and increasing the internal pressure of the cushion with a time difference through the development of the first and second stages.

또한, 최근에는 액티브벤트라는 개념이 도입되어 평상시 벤트를 닫고 있다가 필요시에는 이를 벤트로 형성함으로써 내압을 줄여 에어백에 의한 승객의 목 상해 등을 효과적으로 방지하고 있다.In addition, recently, the concept of an active vent has been introduced to normally close the vent, and if necessary, it is formed as a vent to reduce internal pressure, thereby effectively preventing a passenger's neck injury due to an air bag.

즉, 종래의 단순한 에어백의 경우에는 시트 벨트 미착용 시험과 벨트 착용 시험 조건을 동시에 만족하기 어려운 상황이었다. 즉, 벨트 착용 시에는 벤팅량을 늘릴 필요가 있는 반면 , 벨트 미착용 시에는 벤팅량을 줄여 승객의 하드컨텍을 방지할 필요가 있었던 것이다.That is, in the case of the conventional simple airbag, it was difficult to satisfy the seat belt non-wearing test and the belt wearing test condition at the same time. In other words, when the belt is worn, it is necessary to increase the amount of venting, while when the belt is not worn, it is necessary to reduce the amount of venting to prevent passenger hard contact.

또한, 고속 충돌 및 저속 충돌 조건 역시 동시에 만족하기 어려운 상황이었다. 즉, 저속 충돌 시에는 벤팅량을 감소시킬 필요가 있었고, 고속 충돌 시에는 벤팅량을 증대할 필요가 있었던 것이다.In addition, high-speed collision and low-speed collision conditions were also difficult to satisfy at the same time. That is, it was necessary to reduce the venting amount in the low-speed collision, and it was necessary to increase the venting amount in the high-speed collision.

그러나 종래의 기술에 따르면 이러한 다양한 상황에 따라 에어백의 전개와 내압을 달리할 수 있는 기술이 없었으며, 액티브벤트를 이용하더라도 이를 경우에 따라 효과적으로 제어함으로써 최대의 효과를 낼 수 있도록 하는 제어방법이 제시되지 않았는바, 액티브벤트를 적용함에 있어서도 벤트의 작동시점과 작동되는 경우를 한정하여 승객을 최대한 보호할 수 있도록 하는 기술이 필요하였던 것이다.
However, according to the conventional technology, there is no technology that can change the airbag deployment and internal pressure according to these various situations, and even if using an active vent, a control method is proposed to achieve the maximum effect by effectively controlling this in some cases. In the case of applying the active vents, there was a need for a technology that would protect the passengers as much as possible when the vents were operated and when they were operated.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.
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.

본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로, 액티브벤트가 적용된 차량에서, 효과적으로 작동 타이밍을 설정함으로써 승객을 최대한 보호할 수 있도록 하는 액티브벤트 에어백 제어시스템 및 그 제어방법을 제공하는데 그 목적이 있다.
SUMMARY OF THE INVENTION The present invention has been proposed to solve such a problem, and an object of the present invention is to provide an active vent airbag control system and a method of controlling the same, which effectively protects a passenger by effectively setting an operation timing in a vehicle to which an active vent is applied. .

상기의 목적을 달성하기 위한 본 발명에 따른 액티브벤트 에어백 제어시스템은, 순차적인 작동을 통하여 에어백 쿠션을 2 단계로 나누어 팽창시키는 제1인플레이터 및 제2인플레이터; 작동부의 동작에 따라 선택적으로 벤트를 형성하는 액티브벤트; 및 제1전개조건의 만족시 제1인플레이터를 작동시키고, 제1시간동안 제2전개조건을 만족하면 제2인플레이터를 작동시키며 만족하지 못할 경우 액티브벤트를 작동시키고, 제2인플레이터가 작동된 경우에는 제2시간 후 액티브벤트를 작동시키는 제어부;를 포함한다.Active vent airbag control system according to the present invention for achieving the above object, the first inflator and the second inflator to expand the airbag cushion in two stages through sequential operation; An active vent selectively forming a vent according to an operation of the operating unit; And operating the first inflator when the first development condition is satisfied, operating the second inflator if the second development condition is satisfied during the first time period, and if the second inflator is operated, operating the active vent if not satisfied. And a control unit for operating the active vent after the second time.

상기와 같은 에어백 제어시스템을 이용한 액티브벤트 에어백 제어방법은, 제1전개조건의 만족시 제1인플레이터를 작동시키는 제1전개단계; 제1시간 동안 제2전개조건을 만족하면 제2인플레이터를 작동시키고 만족하지 못할 경우 액티브벤트를 작동시키는 제2전개단계; 및 제2인플레이터가 작동된 경우 제2시간 후 액티브벤트를 작동시키는 액티브전개단계;를 포함한다.An active vent airbag control method using the airbag control system as described above includes: a first deployment step of operating a first inflator when a first deployment condition is satisfied; A second development step of operating a second inflator if the second development condition is satisfied for the first time and an active vent if not satisfied; And an active deployment step of operating the active vent after the second time when the second inflator is operated.

또한, 제1전개조건을 만족하지 못하는 시간이 제3시간 이상 지속될 경우 로직을 종료하는 준비단계;를 더 포함할 수 있다.The method may further include preparing a logic to terminate the logic when the time that does not satisfy the first development condition lasts for more than three hours.

상기 액티브전개단계는, 제2인플레이터가 작동된 경우 시트벨트 착용신호가 감지되고 제2시간이 경과된 후에 액티브벤트를 작동시킬 수 있다.In the active deployment step, when the second inflator is activated, the active belt may be activated after a second time elapses after the seat belt wearing signal is detected.

상기 제1전개조건과 제2전개조건은 충돌센서를 통해 측정된 가속도값일 수 있다.The first and second development conditions may be acceleration values measured by a collision sensor.

상기 제1시간은 100 ~ 150 ms일 수 있고, 상기 제2시간은 20 ~ 30 ms일 수 있으며, 상기 제3시간은 5 ms일 수 있다.The first time may be 100 to 150 ms, the second time may be 20 to 30 ms, and the third time may be 5 ms.

한편, 본 발명에 따른 또 다른 액티브벤트 에어백 제어방법은, 제1전개와 제2전개를 통해 쿠션의 팽창정도를 제어하되, 제1전개 후 제2전개를 하지 않을 경우에는 액티브벤트를 작동시키고, 제2전개까지 작동한 경우에는 시트벨트 착용신호가 감지된 경우에만 액티브벤트를 작동시키도록 할 수 있다.
On the other hand, another active vent airbag control method according to the present invention, while controlling the degree of inflation of the cushion through the first and second deployment, if the second deployment after the first deployment does not operate the active vent, In the case of operating up to the second deployment, the active vent may be operated only when the seat belt wearing signal is detected.

상술한 바와 같은 구조로 이루어진 액티브벤트 에어백 제어시스템 및 그 제어방법에 따르면, 액티브벤트의 작동을 제1전개 및 제2전개 그리고, 시트벨트와 연동함으로써 다양한 상황에서 승객을 최대한 보호할 수 있게 된다.According to the active vent airbag control system and the control method having the structure as described above, the operation of the active vent in conjunction with the first and second deployment, and the seat belt can maximize the protection of the passenger in various situations.

특히, 제1전개 후 일정시간 관찰하여 제2전개가 필요치 않은 경우에는 액티브벤트를 바로 작동시킴으로써 승객의 2차 상해를 방지하고, 제2전개까지 나아간 경우에는 시트벨트를 착용한 경우에만 액티브벤트를 작동시킴으로써 시트벨트 미착용시의 상해발생에 대응할 수 있게 된다.
In particular, when the second deployment is not observed after a certain period of time, the active vent is operated immediately to prevent secondary injuries of the passengers. By operating it, it is possible to cope with the occurrence of injuries when the seat belt is not worn.

도 1은 본 발명의 일 실시예에 따른 액티브벤트 에어백 제어시스템을 나타낸 도면.
도 2는 도 1에 도시된 액티브벤트 에어백 제어시스템을 이용한 액티브벤트가 적용된 에어백의 제어방법을 나타낸 순서도.1 is a view showing an active vent airbag control system according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a method of controlling an airbag to which an active vent is applied using the active vent airbag control system shown in FIG. 1.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예에 따른 액티브벤트 에어백 제어시스템 및 그 제어방법에 대하여 살펴본다.Hereinafter, an active vent airbag control system and a method of controlling the same will be described with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 액티브벤트 에어백 제어시스템을 나타낸 도면으로서, 본 발명의 액티브벤트 에어백 제어시스템은, 순차적인 작동을 통하여 에어백 쿠션을 2 단계로 나누어 팽창시키는 제1인플레이터(10) 및 제2인플레이터(20); 작동부의 동작에 따라 선택적으로 벤트를 형성하는 액티브벤트(30); 및 제1전개조건의 만족시 제1인플레이터(10)를 작동시키고, 제1시간동안 제2전개조건을 만족하면 제2인플레이터(20)를 작동시키며 만족하지 못할 경우 액티브벤트(30)를 작동시키고, 제2인플레이터(20)가 작동된 경우에는 제2시간 후 액티브벤트(30)를 작동시키는 제어부(50);를 포함한다.1 is a view showing an active vent airbag control system according to an embodiment of the present invention, the active vent airbag control system of the present invention, the first inflator 10 to expand the airbag cushion in two stages through the sequential operation (10) ) And the second inflator 20; An active vent 30 to selectively form a vent according to the operation of the operating unit; And operating the first inflator 10 when the first development condition is satisfied, and operating the second inflator 20 when the second development condition is satisfied during the first time period. And a control unit 50 for operating the active vent 30 after the second time, when the second inflator 20 is operated.

여기서, 본 발명이 적용되는 에어백은 두 단계의 팽창이 가능한 것으로서, 인플레이터를 두 개로 나누어 설정함으로써 시간차를 두고 원하는 타이밍에 폭발시켜 쿠션의 내압을 단계적으로 조절할 수 있도록 한다.Here, the airbag to which the present invention is applied is capable of inflating in two stages, and by setting the inflator into two, it explodes at a desired timing with a time difference so that the internal pressure of the cushion can be adjusted step by step.

이는 제1인플레이터(10)와 제2인플레이터(20)를 통하여 이루어지며, 제어부(50)는 충돌감지센서(40)로부터 가속도 등의 신호를 얻어 충돌의 정도를 파악할 수 있도록 한다. 여기서 말하는 충돌감지센서(40)란, 변위센서를 포함하여 차량의 다 방향의 가속도 등을 모두 측정하여 충돌여부를 감지할 수 있는 모든 센서를 말하는 것이다.This is done through the first inflator 10 and the second inflator 20, and the controller 50 can obtain a signal such as an acceleration from the collision detection sensor 40 to determine the degree of collision. Here, the collision detection sensor 40 refers to all sensors capable of detecting the collision by measuring all the accelerations of the multi-direction of the vehicle including the displacement sensor.

한편, 제어부(50)는 센서값이 제1전개조건을 만족한 경우에는 제1인플레이터(10)를 작동하여 쿠션이 1차 전개를 이룰 수 있도록 한다. 그리고, 그 후 제2전개조건이 만족되면 제2인플레이터(20)를 작동시켜 쿠션이 제2전개를 수행하도록 한다. On the other hand, when the sensor value satisfies the first development condition, the controller 50 operates the first inflator 10 so that the cushion can achieve the primary development. Then, when the second development condition is satisfied, the second inflator 20 is operated to allow the cushion to perform the second development.

한편, 제1시간 동안 제2전개조건에 다다르지 못한 경우에는 충돌의 종료로 보아 바로 액티브벤트(30)를 작동시키도록 한다. 이 경우에는 제1시간이 경과된 후이므로 바로 액티브벤트(30)를 작동하여 쿠션의 내압이 일정부분 빠질 수 있는 상황으로 설정함으로써 승객의 머리가 충돌할 경우 목 상해를 방지할 수 있도록 하는 것이다.On the other hand, when the second development condition is not reached during the first time, the active vent 30 is operated immediately as the end of the collision. In this case, since the first time has elapsed, the active vent 30 is operated immediately to set a situation in which the internal pressure of the cushion can be partially reduced so that neck injury can be prevented when a passenger's head collides.

물론, 제1시간 동안에 제2전개가 이루어진 경우에는 제2시간 후 액티브벤트(30)가 작동하도록 함으로써 강한 충돌시에도 승객의 머리가 에어백에 충돌하는 시점에 액티브벤트(30)를 개방할 수 있는 것이다.Of course, when the second deployment is made during the first time, the active vent 30 is operated after the second time so that the active vent 30 can be opened at the time when the head of the passenger collides with the airbag even during a strong collision. will be.

즉, 본 발명의 액티브벤트 에어백 제어시스템에 따르면, 제1전개 후 필요한 타이밍에 액티브벤트를 작동하고, 제2전개 후에도 필요한 시점에 액티브벤트를 작동하며, 각각의 경우에 액티브벤트 전개시점을 달리함으로써 저속충돌과 고속충돌시 모두를 대비할 수 있도록 할 수 있게 된다.
That is, according to the active vent airbag control system of the present invention, the active vent is operated at a necessary timing after the first deployment, the active vent is operated at a necessary time after the second deployment, and in each case, the active vent deployment time is varied. It is possible to prepare for both low and high speed collisions.

한편, 도 2는 도 1에 도시된 액티브벤트 에어백 제어시스템을 이용한 액티브벤트가 적용된 에어백의 제어방법을 나타낸 순서도로서, 상기의 액티브벤트 에어백 제어시스템을 통한 제어방법에 대하여 좀 더 구체적으로 살펴본다.Meanwhile, FIG. 2 is a flowchart illustrating a control method of an airbag to which an active vent is applied using the active vent airbag control system shown in FIG. 1, and the control method through the active vent airbag control system will be described in more detail.

본 발명의 액티브벤트 에어백 제어방법은, 제1전개조건의 만족시 제1인플레이터를 작동시키는 제1전개단계(S100); 제1시간 동안 제2전개조건을 만족하면 제2인플레이터를 작동시키고 만족하지 못할 경우 액티브벤트를 작동시키는 제2전개단계(S200); 및 제2인플레이터가 작동된 경우 제2시간 후 액티브벤트를 작동시키는 액티브전개단계(S400);를 포함한다.An active vent airbag control method of the present invention includes: a first deployment step (S100) of operating a first inflator when a first deployment condition is satisfied; A second development step (S200) of operating a second inflator if the second development condition is satisfied for the first time and an active vent if not satisfied; And an active deployment step (S400) of operating the active vent after the second time when the second inflator is operated.

제1전개와 제2전개의 방법은 모두 상기 시스템에서 살펴본 순서에 따른다. 즉, 제1인플레이터는 제1전개조건의 만족시 작동시켜 에어백 쿠션을 제1전개토록 하고(S110,S120), 제1시간동안 센서값을 수신하여 그 동안 제2전개조건이 만족되면 더 큰 충돌로 보아 제2인플레이터를 작동시켜 에어백을 제2전개토록 한다(S220,S230,S240). 그리고, 제2전개 후에는 제2시간이 흐른 후 액티브벤트가 작동되도록 하여 내압을 감소시킨다(S420,S430).Both the first and second deployment methods follow the order described in the system. That is, the first inflator is operated when the first deployment condition is satisfied to allow the airbag cushion to be first deployed (S110, S120), and receives a sensor value for the first time, and if the second deployment condition is satisfied during that time, a larger collision is caused. By operating the second inflator as shown in the second airbag to deploy (S220, S230, S240). After the second development, the internal pressure is reduced by operating the active vent after the second time has passed (S420 and S430).

한편, 제2전개까지 이루어지지 않는 경미한 충돌로 판단된다면, 바로 액티브벤트를 작동하여 승객을 보호한다(S300). 즉, 제1전개만 이루어질 경우에는 제1시간이 흐른 후 액티브벤트가 작동되고, 제2전개까지 이루어진 경우에는 제2전개된 시점부터 제2시간이 흐른 후 액티브벤트가 작동되도록 하는 것이다.On the other hand, if it is determined that the minor collision is not made up to the second deployment, it operates the active vent immediately to protect the passengers (S300). That is, when only the first development is made, the active vent is operated after the first time has elapsed. When the first development is made, the active vent is operated after the second time has elapsed since the second development.

한편, 상기 제1전개조건을 만족하지 못하는 시간이 제3시간 이상 지속될 경우 로직을 종료하는 준비단계(S500);를 더 포함할 수 있다. 즉, 충돌이 감지되기는 하였으나 제1전개를 할 정도가 아님이 판명된 경우에는 오작동을 방지하기 위해 로직을 종료토록 하는 것이다. On the other hand, the preparation step (S500) for terminating the logic when the time that does not satisfy the first development condition for more than a third time may be further included. That is, when a collision is detected but it is found that the first deployment is not sufficient, the logic is terminated to prevent a malfunction.

또한, 상기 액티브전개단계(S400)는, 제2인플레이터가 작동된 경우 시트벨트 착용신호가 감지되고 제2시간이 경과된 후에 액티브벤트를 작동시키도록 하는 것도 가능하다(S410). 즉, 제2전개 후 시트벨트가 착용된 경우에만 액티브벤트를 작동하여 내압을 줄임으로써 승객의 목 상해를 방지하고, 시트벨트가 착용되지 않은 경우에는 액티브벤트를 작동시키지 않음으로써 승객의 더 큰 하드컨텍(차량의 내부 트림 기타 부품에 충돌하여 입는 상해)을 방지하도록 하는 것이다.In addition, in the active deployment step (S400), when the second inflator is operated, it is also possible to activate the active vent after the second time elapses after the seat belt wearing signal is detected (S410). In other words, the passenger's neck is prevented by operating the active vent only when the seat belt is worn after the second deployment to reduce internal pressure, and by not operating the active vent when the seat belt is not worn. This is to prevent contact (injury caused by collision with the vehicle's internal trim or other parts).

한편, 상기 제1전개조건과 제2전개조건은 충돌센서를 통해 측정된 가속도값으로 하여 기준을 잡을 수 있다. 여기서, 충돌센서라 함은 널리 충돌을 판단할 수 있는 신호를 측정하는 모든 센서계통을 말한다.On the other hand, the first and second development conditions can be set as the acceleration value measured by the collision sensor. Here, the collision sensor refers to all sensor systems for measuring a signal that can be widely determined collision.

또한, 상기 제1시간은 100 ~ 150 ms일 수 있고, 상기 제2시간은 20 ~ 30 ms일 수 있으며, 상기 제3시간은 5 ms일 수 있다.
In addition, the first time may be 100 to 150 ms, the second time may be 20 to 30 ms, and the third time may be 5 ms.

한편, 이러한 본 발명의 액티브벤트 에어백 제어방법을 또 달리 표현한다면, 제1전개와 제2전개를 통해 쿠션의 팽창정도를 제어하되, 제1전개 후 제2전개를 하지 않을 경우에는 액티브벤트를 작동시키고, 제2전개까지 작동한 경우에는 시트벨트 착용신호가 감지된 경우에만 액티브벤트를 작동시키는 액티브벤트 에어백 제어방법으로 표현될 수도 있을 것이다.
On the other hand, if the active vent airbag control method of the present invention is expressed differently, the degree of expansion of the cushion is controlled through the first and second deployment, but the active vent is operated when the second deployment is not performed after the first deployment. In the case of operating up to the second deployment, it may be expressed as an active vent airbag control method of operating the active vent only when the seat belt wearing signal is detected.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.
While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10 : 제1인플레이터 20 : 제2인플레이터
30 : 액티브벤트 40 : 충돌센서
50 : 제어부 S100 : 제1전개단계
S200 : 제2전개단계 S400 : 액티브전개단계10: first inflator 20: second inflator
30: Active Vent 40: Collision Sensor
50: control unit S100: first development step
S200: second deployment stage S400: active deployment stage

Claims (9)

삭제delete 제1전개조건의 만족시 제1인플레이터를 작동시키는 제1전개단계(S100);
제1시간 동안 제2전개조건을 만족하면 제2인플레이터를 작동시키고 만족하지 못할 경우 액티브벤트를 작동시키는 제2전개단계(S200); 및
제2인플레이터가 작동된 경우 시트벨트 착용신호가 감지되고 제2시간이 경과된 후에 액티브벤트를 작동시키는 액티브전개단계(S400);를 포함하고,
상기 제1시간은 100 ~ 150 ms이며, 상기 제2시간은 20 ~ 30 ms인 것을 특징으로 하는 액티브벤트 에어백 제어방법.A first development step (S100) of operating the first inflator when the first development condition is satisfied;
A second development step (S200) of operating a second inflator if the second development condition is satisfied for the first time and an active vent if not satisfied; And
If the second inflator is activated when the seat belt wearing signal is detected after the second time elapses the active development step of operating the active vent (S400), including;
The first time is 100 ~ 150 ms, the second time is 20 ~ 30 ms active vent airbag control method characterized in that. 청구항 2에 있어서,
제1전개조건을 만족하지 못하는 시간이 제3시간 이상 지속될 경우 로직을 종료하는 준비단계(S500);를 더 포함하는 것을 특징으로 하는 액티브벤트 에어백 제어방법.The method according to claim 2,
And a preliminary step (S500) of terminating the logic when the time that does not satisfy the first deployment condition lasts for more than a third time (S500). 삭제delete 청구항 2에 있어서,
상기 제1전개조건과 제2전개조건은 충돌센서를 통해 측정된 가속도값인 것을 특징으로 하는 액티브벤트 에어백 제어방법.The method according to claim 2,
And the first and second deployment conditions are acceleration values measured by a collision sensor. 삭제delete 삭제delete 청구항 3에 있어서,
상기 제3시간은 5 ms인 것을 특징으로 하는 액티브벤트 에어백 제어방법.The method according to claim 3,
And wherein the third time period is 5 ms. 삭제delete
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KR20180062494A (en) * 2016-11-30 2018-06-11 현대자동차주식회사 Front airbag for vehicle

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KR20180062494A (en) * 2016-11-30 2018-06-11 현대자동차주식회사 Front airbag for vehicle
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