KR20080054080A - Air-bag opening control method of automobile front impact - Google Patents

Air-bag opening control method of automobile front impact Download PDF

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Publication number
KR20080054080A
KR20080054080A KR1020060126210A KR20060126210A KR20080054080A KR 20080054080 A KR20080054080 A KR 20080054080A KR 1020060126210 A KR1020060126210 A KR 1020060126210A KR 20060126210 A KR20060126210 A KR 20060126210A KR 20080054080 A KR20080054080 A KR 20080054080A
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South Korea
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airbag
collision
deployed
vehicle
air bag
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KR1020060126210A
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Korean (ko)
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서정욱
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현대자동차주식회사
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Publication of KR20080054080A publication Critical patent/KR20080054080A/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
    • 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
    • B60R2021/0004—Frontal 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
    • B60R2021/01013—Means for detecting collision, impending collision or roll-over
    • 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
    • B60R2021/01034—Controlling a plurality of restraint devices
    • 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
    • B60R21/0132—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 vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R2021/01322—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 vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value comprising variable thresholds, e.g. depending from other collision parameters
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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

A method of controlling deployment of an airbag during a front impact of a vehicle is provided to protect the head of a user by deploying a side airbag in addition to a front air bag based on a rotation index of the vehicle. A method of controlling deployment of an airbag in case of a front collision of a vehicle comprises the step of determining a rotation index of the vehicle when a front airbag is deployed(104,106). If a deployment value of the front airbag which is determined by an air bag control unit exceeds a reference value, the front airbag is deployed. When the rotation index exceeds a reference value, a side airbag is deployed(107). A left side airbag and a right side airbag are independently deployed according to a combination of the rotation index.

Description

자동차의 정면충돌시의 에어백 전개 제어방법 {AIR-BAG OPENING CONTROL METHOD OF AUTOMOBILE FRONT IMPACT}Airbag deployment control method in case of frontal collision of car {AIR-BAG OPENING CONTROL METHOD OF AUTOMOBILE FRONT IMPACT}

도 1은 에어백의 제어블록도1 is a control block diagram of an airbag

도 2는 본 발명의 실시예의 플로챠드2 is a flowchart of an embodiment of the invention

<도면의 주요 부분에 대한 부호의 설명>            <Explanation of symbols for main parts of the drawings>

10a,10b : 전방충돌센서 11a,11b : 측면충돌센서 12 : 정면에어백10a, 10b: front collision sensor 11a, 11b: side collision sensor 12: front air bag

13 : 측면에어백 14 : ACU13: side airbag 14: ACU

본 발명은 자동차의 정면충돌시의 에어백 전개 제어방법에 관한 것이며, 상세하게는 자동차의 정면충돌모드 중 경사면충돌모드 또는 옵셋충돌모드시 정면에어백 전개에 추가하여 측면에어백을 전개 제어하는 방법에 관한 것이다.The present invention relates to a method for controlling airbag deployment during frontal collision of a vehicle, and more particularly, to a method of controlling side airbag deployment in addition to the frontal airbag deployment in a sloped collision mode or an offset collision mode among the frontal collision modes of a vehicle. .

최근 자동차의 증가에 의한 각종 사고의 회수가 빈번해지면서 충돌에 관한 자동차의 성능규제와 이에 대한 상품성 및 법적규제가 날로 강화되고 있는 추세이고, 특히 승객의 안전분야에 있어서 각국의 법적규제와 자동차의 안전에 관한 소비자의 욕구증가로 시트 벨트 및 에어백 시스템은 자동차의 필수장치로 인식되었고, 에어백 시스템의 성능이 자동차의 상품성 및 기술우위성을 대표하는 기준자료가 되기도 한다.With the recent increase in the number of accidents caused by the increase of automobiles, the performance regulation of automobiles and the commercialization and legal regulation of collisions are being strengthened day by day, especially in the field of passenger safety and the safety of automobiles. Increasing consumer demand for the seat belt and airbag system has been recognized as an essential device of the car, and the performance of the airbag system is often used as a standard data representing the commerciality and technical superiority of the car.

따라서 각국의 자동차 메이커들은 자동차 제작의 일환으로 충돌사고시 시트 벨트와 에어백의 성능향상을 위하여 많은 연구를 진행하여 왔으며, 최근에는 시트 벨트를 착용하지 않은 상태에서 에어백의 승객보호성능평가를 만족시키기 위하여 어드벤스드 에어백 시스템(Advanced Air Bag System)의 개발 및 성능향상에 노력을 기울이고 있다.As a result, automobile makers of various countries have conducted a lot of research to improve the performance of seat belts and airbags in the event of a crash, and recently, to satisfy the passenger protection performance evaluation of airbags without seat belts. Efforts are being made to develop and improve the performance of the Advanced Air Bag System.

상기 에어백 시스템은 도 1에 도시한 바와 같이, 프론트 사이드 멤버 또는 라디에이터 써포트 어퍼 멤버의 좌우 양측에 전방충돌센서(10a)(10b)를, 사이드 패널의 좌우에 측면충돌센서(11a)(11b)를 각각 설치하고, 또한 스티어링 핸들 및 크래쉬 패드의 동승자석 전방에 정면에어백(12)을, 루프 레일에 측면에어백(커튼 에어백)(13)을 설치하여서, 정면충돌시에는 전방충돌센서(10a)(10b)가 이를 센싱하여 그 출력신호를 에어백 콘트롤 유닛(Air-Bag Control Unit, ACU, 이하 ACU라 함) (14)에 입력하면 ACU(14)에 내장된 안전스위치가 "온" 되어 정면에어백(12) 내의 가스발생기를 트리거링(triggering)하여서 정면에어백(12)이 전개되도록 되어 있고, 한편 최근에 성능이 향상된 어드밴스드 에어백 시스템(Advanced Air-Bag System)은 동승자석(조수석)의 시트 쿠션에 동승자의 착좌유무를 검지하는 동승자센서를 추가설치하여 동승자석 시트에 동승자가 탑승하였을 때에만 동승자석 에어백이 전개되도록 한 것이다.As shown in FIG. 1, the airbag system includes front collision sensors 10a and 10b on the left and right sides of the front side member and the radiator support upper member, and side collision sensors 11a and 11b on the left and right sides of the side panel. The front airbag 12 is installed in front of the passenger seat of the steering wheel and the crash pad, and the side airbag (curtain airbag) 13 is installed on the roof rail, and the front collision sensor 10a (10b) at the time of frontal collision. ) Senses this and inputs the output signal into the air-bag control unit (ACU) (14). The safety switch built into the ACU 14 is "on" and the front airbag 12 The front airbag 12 is developed by triggering a gas generator in the vehicle, while the advanced air-bag system, which has recently been improved in performance, is used to seat a passenger in a seat cushion of a passenger seat (passenger seat). Sword presence An occupant sensor for additional installation to ride magnet sheet is one that only the magnet ride air bag deployment when the passenger is on board hayeoteul.

그리고 측면충돌시에는 좌ㆍ우 측면충돌센서(11a)(11b) 중 충돌부위에 설치 한 측면충돌센서의 출력신호가 ACU(14)에 입력되어 측면에어백(13) 중 충돌부위에 설치한 측면에어백이 전개되는 것이다.In the event of side impact, the output signal of the side collision sensor installed at the collision site among the left and right side collision sensors 11a and 11b is input to the ACU 14, and the side airbag installed at the collision site among the side airbags 13 is provided. This will be deployed.

한편 자동차의 정면충돌모드는 고정벽 수직충돌모드, 경사면충돌모드 및 옵셋충돌모드로 구분되는 것이다.On the other hand, the front collision mode of the vehicle is divided into a fixed wall vertical collision mode, inclined surface collision mode and offset collision mode.

그러나 상기한 에어백 전개방법은 정면충돌시에는 정면에어백(12)이 전개되고, 측면충돌시에는 측면에어백(13) 중 충돌부위에 설치한 측면에어백만 전개되도록 되어 있음으로 자동차의 정면충돌시 고정벽 수직충돌모드시에는 자동차가 회전하지 않음으로 탑승자의 보호가 양호하지만, 경사면충돌모드 또는 옵셋충돌모드시에는 자동차가 그 충돌부위 반대방향으로 회전함으로써 전방시트 탑승자의 머리는 센터 필라에, 후방시트 탑승자의 머리는 리어 필라에 충돌하여 머리의 상해치가 커지게 되는 것이다.However, in the air bag deployment method, the front air bag 12 is deployed at the time of the frontal collision, and the side air million installed at the collision site of the side air bag 13 is deployed at the time of the side collision, so that the fixed wall at the time of the front collision of the car In the vertical collision mode, the vehicle does not rotate, so the occupant's protection is good, but in the slope collision or offset collision mode, the vehicle rotates in the opposite direction to the collision area. The head of the head hits the rear pillars and the head injury increases.

본 발명은 상기한 실정을 감안하여, 정면충돌시의 경사면충돌모드 또는 옵셋충돌모드시에 정면에어백에 추가하여 측면에어백을 전개토록하여 탑승자의 머리상해치를 저감할 수 있도록 한 자동차 정면충돌시의 에어백 전개 제어방법을 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides an airbag during a frontal collision of a vehicle in which a side airbag is developed in addition to a frontal airbag in an inclined plane collision mode or an offset collision mode during a frontal collision to reduce the head injury of the occupant. It is an object to provide a deployment control method.

상기한 목적을 달성하기 위하여, 본 발명은 차체의 전방 양측에 전방충돌센서를, 측면 양측에 측면충돌센서를 각각 설치하고, 스티어링 휠과 크래쉬 패드에 정면에어백을, 루프 레일에 측면에어백을 설치함과 아울러 ACU를 구비하여서, 정면 또는 측면충돌시 상기 전방 또는 측면충돌센서의 신호를 ACU에 출력하여 상기 정면 에어백 또는 측면에어백을 선택적으로 제어하도록 한 것에 있어서, 상기 정면충돌시 ACU에 의하여 판단되는 정면에어백의 전개값이 규정값을 초과하여 정면에어백이 전개될 때 자동차의 회전지수도 판단하여 그 임계값을 초과할 때 측면에어백도 함께 전개하는 것을 포함함을 특징으로 한다.In order to achieve the above object, the present invention is to install the front collision sensor on both sides of the front of the vehicle body, the side collision sensor on both sides of the side, the front air bag on the steering wheel and the crash pad, the side air bag on the roof rail And in addition to the ACU, in the front or side collision to output the signal of the front or side collision sensor to the ACU to selectively control the front air bag or side air bag, the front determined by the ACU during the front collision When the front air bag is deployed when the deployment value of the air bag exceeds the prescribed value, the rotational index of the vehicle is also determined and the side air bag is also included when the threshold value is exceeded.

본 발명은 도 1과 같이 프론트 사이드 멤버 또는 라디에이터 써포트 어퍼 멤버의 좌우 양측에 전방충돌센서(10a)(10b)를, 사이드 패널의 좌우에 측면충돌센서 (11a)(11b)를 각각 설치하고, 또한 스티어링 핸들 및 크래쉬 패드의 동승자석 전방에 정면에어백(12)을, 루프 레일에 측면에어백(커튼 에어백)(13)을 설치하여서, 정면충돌시에는 전방충돌센서(10a)(10b)가 이를 센싱하여 그 출력신호를 ACU(14)에 입력하면 ACU(14)에 내장된 안전스위치가 "온" 되어 정면에어백(12) 내의 가스발생기를 트리거링(triggering)하여서 정면에어백(12)이 전개되도록 하고, 측면충돌시에는 좌ㆍ우 측면충돌센서(11a)(11b) 중 충돌부위에 설치한 측면충돌센서의 출력신호가 ACU(14)에 입력되어 측면에어백(13) 중 충돌부위에 설치한 측면에어백이 전개되는 것을 기본으로 하며, 그 알고리즘도 주지된 것임으로 구체적인 설명은 생략한다.In the present invention, as shown in FIG. The front airbag 12 is installed in front of the passenger seat of the steering wheel and the crash pad, and the side airbag (curtain airbag) 13 is installed on the roof rail. When the output signal is inputted to the ACU 14, the safety switch built in the ACU 14 is "on" to trigger the gas generator in the front airbag 12 so that the front airbag 12 is deployed, and the side In the event of a collision, the output signal of the side collision sensor installed at the collision site among the left and right side collision sensors 11a and 11b is input to the ACU 14, and the side airbag installed at the collision site among the side airbags 13 is deployed. On the basis of which the algorithm It will as a detailed description thereof will be omitted.

그리고 정면충돌시 ACU(14)에서 판단되는 정면에어백(12)의 전개값이 규정값을 초과하여 정면에어백(12)이 전개될 때 자동차의 회전지수(Rotational Index, RI)를 판단하여 그 판단된 회전지수(RI)가 임계값을 초과할 때 측면에어백(13)도 함께 전개되는 것을 더 포함하여 경사면충돌모드 또는 옵셋충돌모드시에 정면에어 백(12)과 동시에 측면에어백(13)도 전개되도록 한 것이다.In addition, when the front airbag 12 is deployed because the deployment value of the front airbag 12 determined by the ACU 14 exceeds the prescribed value during frontal collision, the rotational index (RI) of the vehicle is determined and determined. The side airbag 13 is also deployed when the rotation index RI exceeds the threshold value, so that the side airbag 13 is also deployed at the same time as the front airbag 12 in the slope collision mode or the offset collision mode. It is.

상기 회전지수(RI)는 좌ㆍ우 전방충돌센서(10a)(10b)의 감ㆍ가속도, 좌ㆍ우 측면충돌센서(11a)(11b)의 감ㆍ가속도 및 좌ㆍ우 전방충돌센서(10a)(10b)의 충돌에너지의 조합으로 형성하는 것이다.The rotation index RI is a deceleration / acceleration of the left and right front collision sensors 10a and 10b, a deceleration and acceleration of the left and right side collision sensors 11a and 11b, and a left and right forward collision sensor 10a. It is formed by the combination of the collision energy of (10b).

본 발명의 전개제어동작을 도 2의 플로챠드에 의하여 설명한다.The deployment control operation of the present invention will be described with reference to the flowchart of FIG.

정면충돌이 발생하면 ACU(14) 내의 정면충돌신호가 "온(스텝 101)"되어 정면충돌 감ㆍ가속도가 동작 규정값인 3g보다 큰지의 여부를 판단하고(스텝 102), 상기 스텝 102에서 정면충돌 감ㆍ가속도가 동작 규정값보다 크면 그 규정값이 정면에어백 전개값보다 큰지의 여부를 판단하여(스텝 103), 그 규정값이 정면에어백 전개값보다 작으면 스텝 102로 피드백되는 것이다.If a frontal collision occurs, the frontal collision signal in the ACU 14 is "on" (step 101), and it is determined whether the frontal collision reduction / acceleration is greater than 3 g which is an operation specified value (step 102). If the collision reduction / acceleration is greater than the operation specified value, it is determined whether the specified value is larger than the front airbag deployment value (step 103). If the specified value is smaller than the front airbag deployment value, the feedback is fed back to step 102.

상기 스텝 103에서 정면에어백 전개값이 동작 규정값보다 크면 스텝 104로 진행하여 정면에어백(12)을 전개함과 아울러 스텝 105로 진행한다.In step 103, if the front airbag deployment value is larger than the prescribed operation value, the flow advances to step 104 to expand the front airbag 12 and to proceed to step 105.

상기 스텝 103에서의 정면에어백 전개값은 정면충돌속도, 충돌에너지, 충돌시간(거리)의 조합에 의하여 판단하며, 통상적으로 정면충돌속도는 14.4km/h 이상, 정면충돌센서의 감ㆍ가속도는 17g을 기준으로 한다.The front airbag deployment value in step 103 is determined by the combination of the front collision speed, the collision energy, and the collision time (distance). Normally, the front collision speed is 14.4 km / h or more, and the acceleration / deceleration of the front collision sensor is 17g. On the basis of

상기 스텝 105에서 정면충돌이 경사면충돌모드 또는 옵셋충돌모드인지를 감지하여 경사면 또는 옵셋충돌모드일 경우 스텝 106으로 진행하여 회전지수(RI)가 임계값 이상인지의 여부를 판단하며, 상기 회전지수(RI)가 임계값 이상일 경우 측면에어백(13)을 전개하고, 회전지수(RI)가 임계값 이하일 경우에는 단계 105로 피드백되는 것이다.In step 105, whether the frontal collision is in the inclined plane collision mode or the offset collision mode, and if the inclined plane or offset collision mode, proceeds to step 106 to determine whether the rotation index (RI) is greater than the threshold value, and the rotation index ( If the RI) is greater than or equal to the threshold value, the side airbag 13 is deployed. If the rotation index RI is less than or equal to the threshold value, the feedback is returned to step 105.

상기와 같이 측면에어백(13)이 전개될 때 회전지수(RI)의 조합결과 정면 좌측충돌일 경우에는 좌측 측면에어백만을, 정면 우측충돌일 경우에는 우측 측면에어백만을 전개할 수도 있다.As described above, when the side airbag 13 is deployed, the left side air million may be deployed in the case of the front left collision, and the right side air million may be deployed in the case of the front right collision.

상기와 같이 정면충돌모드시의 경사면충돌모드 또는 옵셋충돌모드시에는 정면에어백(12)의 전개에 추가하여 측면에어백(13)도 전개하면 탑승자의 머리가 측면에어백(커튼 에어백)(13)에 의하여 보호됨으로 머리상해치를 저감할 수 있는 것이다.As described above, when the side airbag 13 is also deployed in addition to the deployment of the front airbag 12 in the inclined plane collision mode or the offset collision mode in the front collision mode, the occupant's head is moved by the side airbag (curtain airbag) 13. The protection can reduce the head injury.

이상과 같이 본 발명은 정면충돌시에 자동차의 회전지수를 판단하여 정면에어백의 전개에 추가하여 측면에어백도 함께 전개함으로써 탑승자의 머리가 측면에어백에 의하여 보호됨으로 머리상해치를 저감할 수 있기 때문에 안전성을 제고할 수 있고, 상품성을 증대할 수 있는 것이다.As described above, the present invention judges the rotational index of the vehicle at the time of frontal collision, and in addition to the development of the front airbag, the side airbag is also deployed together so that the head of the occupant is protected by the side airbag. It is possible to improve the productability.

Claims (2)

차체의 전방 양측에 전방충돌센서를, 측면 양측에 측면충돌센서를 각각 설치하고, 스티어링 휠과 크래쉬 패드에 정면에어백을, 루프 레일에 측면에어백을 설치함과 아울러 에어백 콘트롤 유닛을 구비하여서, 정면 또는 측면충돌시 상기 전방 또는 측면충돌센서의 신호를 에어백 콘트롤 유닛에 출력하여 상기 정면에어백 또는 측면에어백을 선택적으로 제어하도록 한 것에 있어서, 상기 정면충돌시 에어백 콘트롤 유닛에 의하여 판단되는 정면에어백의 전개값이 규정값을 초과하여 정면에어백이 전개될 때 자동차의 회전지수도 판단하여 그 임계값을 초과할 때 측면에어백도 함께 전개하는 것을 포함함을 특징으로 한 자동차의 정면충돌시의 에어백 전개 제어방법.Front collision sensors are installed on both sides of the front of the vehicle, side collision sensors are installed on both sides of the vehicle, front airbags are installed on the steering wheel and the crash pad, and side airbags are installed on the roof rail, and the airbag control unit is provided. In the case of side collision, the front or side airbag signal is output to the airbag control unit to selectively control the front airbag or the side airbag, wherein the front airbag determined by the airbag control unit during the frontal collision When the front air bag is deployed in excess of a specified value, the rotational index of the vehicle is also determined, and when exceeding the threshold air bag deployment control method for a frontal collision of the vehicle, characterized in that it includes deploying together. 제 1 항에 있어서, 측면에어백이 전개될 때 회전지수의 조합결과 정면 좌측충돌일 경우에는 좌측 측면에어백만을, 정면 우측충돌일 경우에는 우측 측면에어백만을 전개토록 한 자동차의 정면충돌시의 에어백 전개 제어방법.2. The airbag deployment control according to the frontal collision of a vehicle according to claim 1, wherein when the side airbag is deployed, the left side air million is deployed in case of front left collision, and the right side air million is deployed in case of front right collision. Way.
KR1020060126210A 2006-12-12 2006-12-12 Air-bag opening control method of automobile front impact KR20080054080A (en)

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