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KR100222166B1 - Air bag system having variable inflating time - Google Patents

Air bag system having variable inflating time Download PDF

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Publication number
KR100222166B1
KR100222166B1 KR1019960069660A KR19960069660A KR100222166B1 KR 100222166 B1 KR100222166 B1 KR 100222166B1 KR 1019960069660 A KR1019960069660 A KR 1019960069660A KR 19960069660 A KR19960069660 A KR 19960069660A KR 100222166 B1 KR100222166 B1 KR 100222166B1
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KR
South Korea
Prior art keywords
vehicle
charge
initiator
speed
internal
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Application number
KR1019960069660A
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Korean (ko)
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KR19980050815A (en
Inventor
최성철
Original Assignee
정몽규
현대자동차주식회사
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Priority to KR1019960069660A priority Critical patent/KR100222166B1/en
Publication of KR19980050815A publication Critical patent/KR19980050815A/en
Application granted granted Critical
Publication of KR100222166B1 publication Critical patent/KR100222166B1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable 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
    • B60R21/263Inflatable 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013Electrical 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
    • B60R21/0132Electrical 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01286Electronic control units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013Electrical 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
    • B60R21/0132Electrical 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
    • B60R2021/01322Electrical 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable 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
    • B60R21/263Inflatable 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
    • B60R2021/2633Inflatable 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable 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
    • B60R21/264Inflatable 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 instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644Inflatable 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 instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

본 발명은 차량의 에어 백에 관한 것으로, 차량의 충돌시의 차속도에 따라 에어 백의 전개속도를 조절할 수 있는 전개속도 가변형 에어 백 시스템을 제공하는데 그 목적이 있다.The present invention relates to an airbag of a vehicle, and an object of the present invention is to provide a variable deployment speed airbag system capable of adjusting the deployment speed of an airbag according to a vehicle speed during a collision of the vehicle.

본 발명은 차량의 에어 백 시스템에 있어서; 충돌감지센서(12); 차속센서(14); 내부장약(41), 열전달부재(42) 및 외부장약(43)으로 구성되는 장약부와; 내부장약(41)에 연결되는 제1기폭제(31)와; 내부장약(41) 및 외부장약(43)에 연결되는 제2기폭제(32); 그리고, 차속센서(14) 및 충돌감지센서(12)로부터 입력되는 신호에 따라 제1기폭제(31) 및 제2기폭제(32)에 선택적으로 소정의 전류를 인가하는 전자제어유니트(20); 를 구비함으로써, 차량의 충돌시 최적의 시점에 에어 백이 전개시킬 수 있으며, 이에 따라, 전개된 에어 백에 의하여 탑승자가 상해를 당하는 것을 방지할 수 있는 효과가 있다.The present invention relates to an airbag system of a vehicle; A collision detection sensor 12; A vehicle speed sensor 14; A charge part composed of an internal charge 41, a heat transfer member 42, and an external charge 43; A first initiator 31 connected to the internal charge 41; A second initiator 32 which is connected to the internal charge 41 and the external charge 43; And, the electronic control unit 20 for selectively applying a predetermined current to the first initiator 31 and the second initiator 32 in accordance with the signals input from the vehicle speed sensor 14 and the collision detection sensor 12; By providing a, the air bag can be deployed at an optimum time during the collision of the vehicle, thereby, there is an effect that can prevent the occupants from being injured by the deployed air bag.

Description

전개속도 가변형 에어 백 시스템Variable deployment air bag system

본 발명은 차량의 에어 백에 관한 것으로, 더 상세하게는 차량의 속도에 따라 전개속도가 가변되는 전개속도 가변형 에어 백 시스템(Air Back System Having Variable Inflating Time)에 관한 것이다.The present invention relates to an air bag of a vehicle, and more particularly, to an air back system having a variable inflating time in which the deployment speed is varied according to the speed of the vehicle.

차량용 에어 백은 차량의 충돌시 전개되어 탑승자의 안전을 보호하기 위한 장치로서, 통상적으로, 충돌 센서에 의해 차량이 충돌을 감지한 전자제어유니트가 인플레이터를 작동시키면, 인플레이터로부터 백(bag)으로 가스가 유입되어 백이 팽창되도록 구성된다.The vehicle air bag is deployed to protect the safety of the occupant when the vehicle collides. Generally, when the electronic control unit that detects the collision by the collision sensor operates the inflator, the gas is transferred from the inflator to the bag. Is introduced to expand the bag.

제1도는 상기 인플레이터의 일 예를 도시한 것으로서, 그 작동을 설명하면 다음과 같다. 차량의 충돌이 발생되면, 전자제어유니트에서는 충돌감지센서에 의하여 이를 감지하고 기폭제(3)로 소정의 전류를 출력시킨다. 이때, 입력되는 전류에 의하여 기폭제(3)가 점화됨으로써, 장약(4)이 터지게 되며, 이에 따라 파열컵(5)이 찢어지게 된다. 이때, 컴버스젼 챔버(combustion chamber)(1) 내부에 있는 압축가스(2)의 압력이 급격히 변동되어 파열 디스크(6)를 파열시키게 됨으로써, 파열된 파열 디스크(6)를 통하여 배출된 압축가스(2)가 에어 백으로 공급되어 에어 백을 팽창시키도록 구성된다.FIG. 1 illustrates an example of the inflator, and its operation will be described below. When a collision of the vehicle occurs, the electronic control unit detects this by the collision detection sensor and outputs a predetermined current to the initiator 3. At this time, since the initiator 3 is ignited by the input current, the charge 4 bursts, and the rupture cup 5 is torn. At this time, the pressure of the compressed gas 2 inside the combustion chamber 1 is rapidly changed to rupture the ruptured disk 6, thereby compressing the gas discharged through the ruptured ruptured disk 6. (2) is configured to be supplied to the air bag to inflate the air bag.

그러나, 차량의 충돌시의 차속도에 따라 탑승자의 관성력이 달라지게 되는데, 종래의 인플레이터는 충돌정도에 관계없이 동일한 속도로 압축가스를 배출하여 에어 백을 전개시킴으로써, 탑승자의 상해를 최소화할 수 있는 정확한 시점에 에어 백을 전개시키기 어려운 문제점이 있다.However, the inertial force of the occupant varies depending on the vehicle speed when the vehicle collides. The conventional inflator discharges compressed gas at the same speed regardless of the degree of collision, thereby deploying an air bag, thereby minimizing the injuries of the occupant. There is a problem that it is difficult to deploy the airbag at the correct time.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 차량의 충돌시의 차속도에 따라 에어 백의 전개속도를 조절할 수 있는 전개속도 가변형 에어 백 시스템을 제공하는데 그 목적이 있다.Accordingly, an object of the present invention is to provide a variable deployment speed airbag system capable of adjusting the deployment speed of an airbag according to a vehicle speed during a collision of a vehicle.

제1도는 종래 인플레이터의 일 예를 도시한 단면도.1 is a cross-sectional view showing an example of a conventional inflator.

제2도는 본 발명에 따른 일 실시예를 도시한 단면도.2 is a cross-sectional view showing an embodiment according to the present invention.

제3도는 제2도중 요부 사시도.3 is a perspective view of main parts in FIG. 2;

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 컴버스젼 챔버 2 : 압축가스1: Combustion Chamber 2: Compressed Gas

5 : 파열컵 6 : 파열 디스크5: burst cup 6: burst disk

12 : 충돌감지센서 14 : 차속센서12: collision detection sensor 14: vehicle speed sensor

20 : 전자제어유니트 31 : 제1기폭제20: electronic control unit 31: the first initiator

32 : 제2기폭제 40 : 장약부32: second initiator 40: charge

41 : 내부장약 42 : 열전달부재41: internal charge 42: heat transfer member

43 : 외부장약43: external charge

상기와 같은 목적을 달성하기 위하여 본 발명은 장약의 점화에 따라 분출되는 가스에 의해 백이 전개되는 차량의 에어 백 시스템에 있어서; 차량의 충돌을 감지하는 충돌감지센서; 차량의 속도를 감지하는 차속센서; 내부장약과, 상기 내부장약과 일정간격으로 상기 내부장약의 둘레에 장착되는 외부장약과, 상기 내부장약과 외부장약의 사이에 장착되는 열전달부재로 구성되는 장약부와; 상기 내부장약에 연결되는 제1기폭제와; 상기 내부장약 및 외부장약에 연결되는 제2기폭제; 그리고, 상기 차속센서 및 상기 충돌감지센서로부터 입력되는 신호에 따라 상기 제1기폭제 및 상기 제2기폭제에 선택적으로 소정의 전류를 인가하여 상기 외부장약의 폭발 속도를 조절하는 전자제어유니트; 를 구비하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides an airbag system of a vehicle in which a bag is deployed by a gas ejected according to an ignition of a charge; Collision detection sensor for detecting a collision of the vehicle; A vehicle speed sensor detecting a speed of the vehicle; An internal medicine, an external medicine mounted around the internal medicine at regular intervals from the internal medicine, and a charge part including a heat transfer member mounted between the internal medicine and the external medicine; A first initiator connected to the internal charge; A second initiator connected to the internal and external charges; And, the electronic control unit for controlling the explosion speed of the external charge by selectively applying a predetermined current to the first initiator and the second initiator in accordance with the signal input from the vehicle speed sensor and the collision detection sensor; Characterized in having a.

이하, 본 발명에 따른 전개속도 가변형 에어 백 시스템의 바람직한 실시예를 첨부된 도면을 참조하여 상술한다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a variable speed deployment air bag system according to the present invention will be described in detail.

제2도는 본 발명의 일 실시예에 따른 전개속도 가변형 에어 백 시스템의 단면도이며, 제3도는 제2도의 요부 사시도로서, 도시된 바와 같이, 본 발명은, 종래의 에어 백 시스템에, 충돌감지센서(12), 차속센서(14), 장약부(40), 제1기폭제(31), 제2기폭제(32), 전자제어유니트(20)를 포함하여 구성된다. 제2도에서 제1도와 동일한 구성요소에 대하여는 동일한 도면 번호를 사용하고 그 상세한 설명은 생략한다.2 is a cross-sectional view of a variable air speed variable air bag system according to an embodiment of the present invention, Figure 3 is a perspective view of the main part of Figure 2, as shown, the present invention, a conventional air bag system, a collision detection sensor 12, the vehicle speed sensor 14, the charging unit 40, the first initiator 31, the second initiator 32, and the electronic control unit 20. In FIG. 2, the same reference numerals are used for the same components as those in FIG. 1, and a detailed description thereof will be omitted.

상기 충돌감지센서(12)는 챠량의 충돌을 감지하는 센서이고, 상기 차속센서(14)는 차량의 속도를 감지하는 센서로서, 각각 전자제어유니트(20)에 접속되어진다.The collision detection sensor 12 is a sensor for detecting a collision of the vehicle, and the vehicle speed sensor 14 is a sensor for detecting the speed of the vehicle, and is connected to the electronic control unit 20, respectively.

상기 장약부(40)는, 내부장약(41), 외부장약(43) 및 열전달부재(42)로 이루어지는데, 제3도에 도시된 바와 같이, 원통형의 내부장약(41)의 둘레에 일정한 두께의 열전달부재(42)가 입혀지며, 그리고, 이 열전달부재(42) 위에 외부장약(43)이 둘러싸도록 구성된다. 상기 외부장약(43)은 폭발시 파열컵(5)을 파열시킬 정도의 폭발력을 갖도록 구성되고, 상기 내부장약(41)은 폭발이 되어도 컵을 파열시키지는 못하도록 적은 양으로 구성되며, 상기 열전달부재(42)는 상기 내부장약(41)의 폭발시 발생된 열을 상기 외부장약(43)으로 전달함으로써, 외부장약(43)이 폭발되도록 구성된다. 이때, 상기 열전달부재(42)는 일정속도로 열을 전달하는 재질을 사용함으로써, 상기 내부장약(41)의 폭발에 의해 발생된 열이 소정의 시간이 지연된 후에 상기 외부장약(43)에 전달되고, 이에 따라 외부장약(43)이 폭발되도록 구성된다.The charge portion 40, the inner charge 41, the outer charge 43 and the heat transfer member 42, as shown in Figure 3, a constant thickness around the cylindrical inner charge 41 The heat transfer member 42 is coated, and the external charge 43 is enclosed on the heat transfer member 42. The external charge 43 is configured to have an explosive power to rupture the bursting cup 5 during the explosion, the internal charge 41 is configured in a small amount so as not to rupture the cup even if the explosion, the heat transfer member ( 42 is configured to transfer the heat generated during the explosion of the internal charge 41 to the external charge 43, so that the external charge 43 is exploded. At this time, the heat transfer member 42 is transferred to the external charge 43 after the predetermined time is delayed by the heat generated by the explosion of the internal charge 41 by using a material that transfers heat at a constant speed Thus, the external charge 43 is configured to explode.

상기 제1기폭제(31)는 점화시에 내부장약(41)만을 폭발시킬 수 있도록 상기 내부장약(41)의 중앙에 삽입되어 연결되며, 상기 제2기폭제(32)는 점화시에 상기 내부장약(41)과 외부장약(43)을 동시에 폭발시킬 수 있도록 분기된 2개의 단부가 각각 제1기폭제(31)와 제2기폭제(32)의 각 중앙에 삽입되어 연결되어진다.The first initiator 31 is inserted into and connected to the center of the internal filler 41 to explode only the internal filler 41 during ignition, and the second initiator 32 is connected to the internal filler during ignition. Two ends, which are branched to explode 41 and the external charge 43 at the same time, are inserted into and connected to the respective centers of the first initiator 31 and the second initiator 32, respectively.

상기 전자제어유니트(20)는, 상기 차속센서(14), 충돌감지센서(12), 제1기폭제(31) 및 제2기폭제(32)에 접속되며, 상기 각 센서(12)(14)로부터 입력되는 신호에 따라 상기 각 기폭제(31)(32)에 선택적으로 소정의 전류를 인가하도록 구성된다. 즉, 상기 충돌감지센서(12)와 차속센서(14)로부터 입력되는 신호를 분석하여 충돌속도를 산출한 후, 산출된 충돌속도가 소정의 기준속도(일 예로 60km) 이하일 때에는 상기 제1기폭제(31)로 전류를 인가하여 내부장약(41)만 먼저 폭발되도록 하며, 상기 산출된 충돌속도가 소정의 기준속도를 초과한다고 판단되면, 상기 제2기폭제(32)로 전류를 인가하여 상기 내부장약(41)과 외부장약(43)이 동시에 폭발되도록 한다.The electronic control unit 20 is connected to the vehicle speed sensor 14, the collision detection sensor 12, the first initiator 31 and the second initiator 32, from the respective sensors 12, 14. It is configured to selectively apply a predetermined current to each of the initiators 31 and 32 according to the input signal. That is, after calculating the collision speed by analyzing the signals input from the collision detection sensor 12 and the vehicle speed sensor 14, when the calculated collision speed is less than a predetermined reference speed (for example, 60km), the first initiator ( 31) so that only the internal charge 41 is exploded first, and when it is determined that the calculated collision speed exceeds a predetermined reference speed, the current is applied to the second initiator 32 to provide the internal charge ( 41) and the external charge 43 to be exploded at the same time.

상기와 같은 구성에 의하여, 차량의 충돌이 발생되면, 전자제어유니트(20)에서 충돌감지센서(12) 및 차속센서(14)로부터 입력되는 신호에 의해 충돌속도를 판단한다. 이때, 전자제어유니트(20)는 충돌속도가 소정의 기준속도 이하라고 판단되면, 상기 제1기폭제(31)로 소정의 전류를 인가하며, 이에 따라, 상기 내부장약(41)만 먼저 폭발되고, 이 내부장약(41)의 폭발에 의해 발생된 열이 상기 열전달부재(42)를 통하여 외부장약(43)에 전달됨으로써, 상기 외부장약(43)은 상기 내부장약(41)이 폭발된 다음, 일정시간이 경과된 후에 폭발된다. 이때, 외부장약(43)의 폭발에 의하여 파열컵(5)이 파열되고, 이에 따라 파열 디스크(6)가 파열되어 압축가스(2)가 파열된 파열 디스크(6)를 통하여 에어 백으로 공급됨으로써, 열전달부재(42)에 의해 내부장약(41)의 열이 외부장약(43)으로 전달되는 시간만큼의 시간지연이 있은 후에 에어 백이 전개되게 된다.By the above configuration, when a vehicle collision occurs, the collision speed is determined by signals input from the collision detection sensor 12 and the vehicle speed sensor 14 in the electronic control unit 20. At this time, if it is determined that the collision speed is less than the predetermined reference speed, the electronic control unit 20 applies a predetermined current to the first initiator 31, and accordingly, only the internal charge 41 is first exploded, The heat generated by the explosion of the internal charge 41 is transferred to the external charge 43 through the heat transfer member 42, so that the external charge 43 is fixed after the internal charge 41 is exploded, Explodes after a time elapses. At this time, the burst cup 5 is ruptured by the explosion of the external charge 43, and thus the ruptured disc 6 is ruptured, so that the compressed gas 2 is supplied to the air bag through the ruptured rupture disc 6. In addition, the air bag is deployed after a time delay as long as the heat of the internal charge 41 is transferred to the external charge 43 by the heat transfer member 42.

그리고, 상기 전자제어유니트(20)에서 판단된 충돌속도가 소정의 기준속도를 초과했다고 판단되면, 상기 제2기폭제(32)로 소정의 전류를 인가하며, 이에 따라, 상기 내부장약(41)과 외부장약(43)이 동시에 폭발되고, 내,외부장약(41)(43)의 폭발에 의하여 파열컵(5)이 즉시 파열되며, 이에 따라 파열 디스크(6)가 파열되오 압축가스(2)가 파열된 파열 디스크(6)를 통하여 에어 백으로 공급됨으로써, 열전달부재(42)에 의한 시간지연 없이 에어 백이 빠르게 전개되게 된다.When it is determined that the collision speed determined by the electronic control unit 20 exceeds a predetermined reference speed, a predetermined current is applied to the second initiator 32, and accordingly, the internal charge 41 and The external charge 43 is exploded at the same time, the bursting cup 5 is immediately ruptured by the explosion of the internal and external charges 41 and 43, and thus the bursting disc 6 is ruptured. By supplying the airbag through the ruptured rupture disk 6, the airbag is rapidly deployed without time delay by the heat transfer member 42.

상기 일 실시예에 의하여 알 수 있는 바와 같이, 본 발명에 따른 전개속도 가변형 에어 백 시스템에 의하여, 차량의 충돌속도에 따라 에어 백의 전개속도를 조절하므로써, 차량의 충돌시 최적의 시점에 에어 백이 전개시킬 수 있으며, 이에 따라, 전개된 에어 백에 의하여 탑승자가 상해를 당하는 것을 방지할 수 있는 효과가 있다.As can be seen by the above embodiment, the airbag is deployed at an optimal time during the collision of the vehicle by adjusting the deployment speed of the airbag according to the collision speed of the vehicle by the deployment speed variable airbag system according to the present invention In this way, there is an effect that can prevent the occupant from being injured by the deployed air bag.

이상에서 본 발명의 일 실시예에 따른 전개속도 가변형 에어 백 시스템에 대하여 설명하였으나, 본 발명은 이에 한정하지 아니하며, 당업자라면 여러 가지로 그 변형과 응용이 가능할 것이다.In the above described the deployment speed variable airbag system according to an embodiment of the present invention, the present invention is not limited to this, and those skilled in the art will be able to various modifications and applications.

Claims (1)

장약의 점화에 따라 분출되는 가스에 의해 백이 전개되는 차량의 에어 백 시스템에 있어서; 차량의 충돌을 감지하는 충돌감지센서; 차량의 속도를 감지하는 차속센서; 내부장약과, 상기 내부장약과 일정간격으로 상기 내부장약의 둘레에 장착되는 외부장약과, 상기 내부장약과 외부장약의 사이에 장착되는 열전달부재로 구성되는 장약부와; 상기 내부장약에 연결되는 제1기폭제와; 상기 내부장약 및 외부장약에 연결되는 제2기폭제; 그리고, 상기 차속센서 및 상기 충돌감지센서로부터 입력되는 신호에 따라 상기 제1기폭제 및 상기 제2기폭제에 선택적으로 소정의 전류를 인가하여 상기 외부장약의 폭발 속도를 조절하는 전자제어유니트; 를 구비하는 것을 특징으로 하는 전개속도 가변형 에어 백 시스템.An air bag system of a vehicle in which a bag is deployed by a gas ejected by an ignition of a charge; Collision detection sensor for detecting a collision of the vehicle; A vehicle speed sensor detecting a speed of the vehicle; An internal medicine, an external medicine mounted around the internal medicine at regular intervals from the internal medicine, and a charge part including a heat transfer member mounted between the internal medicine and the external medicine; A first initiator connected to the internal charge; A second initiator connected to the internal and external charges; And, the electronic control unit for controlling the explosion speed of the external charge by selectively applying a predetermined current to the first initiator and the second initiator in accordance with the signal input from the vehicle speed sensor and the collision detection sensor; Deployment speed variable air bag system characterized in that it comprises a.
KR1019960069660A 1996-12-21 1996-12-21 Air bag system having variable inflating time KR100222166B1 (en)

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