KR100259901B1 - Airbag system for a vehicle - Google Patents

Airbag system for a vehicle Download PDF

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Publication number
KR100259901B1
KR100259901B1 KR1019970053762A KR19970053762A KR100259901B1 KR 100259901 B1 KR100259901 B1 KR 100259901B1 KR 1019970053762 A KR1019970053762 A KR 1019970053762A KR 19970053762 A KR19970053762 A KR 19970053762A KR 100259901 B1 KR100259901 B1 KR 100259901B1
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KR
South Korea
Prior art keywords
vehicle
airbag
control unit
signal
air
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KR1019970053762A
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Korean (ko)
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KR19990032667A (en
Inventor
이구열
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류정열
기아자동차주식회사
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Priority to KR1019970053762A priority Critical patent/KR100259901B1/en
Publication of KR19990032667A publication Critical patent/KR19990032667A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • 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
    • B60R2021/01225—Expansion of air bags control of expansion volume
    • 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
    • B60Y2400/304—Acceleration sensors
    • B60Y2400/3042—Collision sensors

Abstract

PURPOSE: An air-bag system for a vehicle is provided to automatically adjust the expansion degree of an air-bag as crash condition of a vehicle and driver's information, the safety of a passenger is greatly improved. CONSTITUTION: For an air-bag system, which consists of several inflater(20), an air-bag(10), and a control unit(24), a signal analysis part(26a) receives and analyzes the signals transferred to the control unit, and adjusts the expansion degree of an air-bag, and a signal control unit is equipped with an output part(26b), which outputs the signals of the signal analysis part.

Description

차량용 에어백 시스템Car airbag system

본 발명은 차량용 에어백 시스템에 관한 것으로서, 보다 상세하게는 차량의 충돌 상태 및 탑승자에 따라 에어백이 팽창되는 정도가 조절됨으로써 승객을 안전을 더욱 적극적으로 도모할 수 있는 차량용 에어백 시스템에 관한 것이다.The present invention relates to a vehicle airbag system, and more particularly, to a vehicle airbag system that can more actively promote passenger safety by adjusting the degree of inflation of the airbag according to the collision state of the vehicle and the occupant.

일반적으로 차량에는 충돌 시 승객의 안전을 도모하기 위하여 안전벨트장치 및 에어백 시스템 등의 각종 안전장치가 설치되어 있다. 이중에서 에어백 시스템은 도 1에 나타난 것과 같이 차량의 충돌 등으로 인하여 차체에 충격이 가해질 경우 운전석이나 조수석 등에서 가스압력으로 팽창하는 에어백(10)이 스티어링 휠(W)과 같은 차체와 운전자(D) 사이에서 완충역할을 하여 부상을 줄이기 위한 것으로, 도 2에 나타난 것과 같이 충격을 감지하는 충격감지센서(12)와, 상기 충격감지센서(12)에서 보내는 신호에 의해 가스를 발생시키는 인플레이터(14)와, 상기 인플레이터(14)에서 공급하는 가스에 의해 팽창하는 에어백(10)을 기본적인 구성요소로하여 이루어져 있다.In general, a vehicle is provided with various safety devices such as a seat belt device and an airbag system to promote the safety of passengers in the event of a collision. In the airbag system, as shown in FIG. 1, when an impact is applied to a vehicle due to a collision of the vehicle, the airbag 10 that expands with gas pressure in a driver's seat or a passenger seat is a vehicle body such as a steering wheel W and a driver D. In order to reduce injuries by acting as a buffer between the shock sensor 12, which detects shock as shown in Figure 2, and the inflator 14 for generating gas by the signal sent from the shock sensor 12 And the airbag 10, which is inflated by the gas supplied from the inflator 14, is composed of basic components.

따라서, 상술한 바와 같이 구성되는 종래의 차량용 에어백 시스템에 의하면 차량의 충돌 등으로 인하여 차체에 충격이 가해질 경우에 충격감지센서(12)가 충격량을 감지하여 충격의 정도가 기준치 이상이면 인플레이터(14)에 신호를 보내고, 상기 인플레이터(14)는 충격감지센서(12)에서 보내를 신호를 받아 작동하여 가스를 에어백(10)에 급속히 주입함으로써, 가스에 의해 에어백(10)이 팽창하여 탑승자가 완충효과를 얻게 되는 것이다.Therefore, according to the conventional airbag system for a vehicle configured as described above, when the impact is applied to the vehicle due to the collision of the vehicle, the impact sensor 12 detects the amount of impact, if the degree of impact is greater than the reference value inflator 14 The inflator 14 operates by receiving a signal sent from the impact sensor 12 to rapidly inject gas into the airbag 10, thereby inflating the airbag 10 by the gas, thereby cushioning the occupant. You will get

그러나, 종래기술에 의하면 차량에 가해지는 충격량이 기준치를 초과할 경우 충격의 크고 작음에 상관없이 에어백(10)이 같은 속도로 팽창하게 되는 바, 이러한 상황에서는 에어백(10)의 급격한 팽창에 의해 탑승자의 목부분이 뒷로 젓혀지면서 목뼈가 골절되는 등의 부상을 당하는 경우가 발생하며, 특히 에어백(10)의 팽착력에 의한 상해는 노약자에게 더욱 치명적으로 작용하게 됨으로써 상황에 따라서는 에어백(10)이 오히려 승객안전에 위협적인 요소가 된다는 문제점을 가지고 있다.However, according to the related art, when the amount of impact applied to the vehicle exceeds the reference value, the airbag 10 is inflated at the same speed regardless of whether the impact is large or small. In such a situation, the occupant is suddenly inflated by the airbag 10. When the neck part of the back is stifled and the injured, such as fracture of the neck bone occurs, in particular, the injury caused by the squeezing force of the airbag 10 is more lethal to the elderly, depending on the situation the airbag (10) Rather, it poses a threat to passenger safety.

본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위하여 안출된 것으로서, 차량의 충돌정도 및 탑승자에 따라 에어백의 팽착압력이 조절됨으로써 탑승자의 안전을 향상시킬 수 있는 차량용 에어백 시스템을 제공하는 것을 목적으로 한다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide a vehicle airbag system that can improve the safety of the occupant by adjusting the swelling pressure of the airbag according to the degree of collision of the vehicle and the occupant. do.

도 1은 일반적인 차량용 에어백 시스템에서 에어백이 작동된 상태를 나타낸 사시도이다.1 is a perspective view showing a state in which the airbag is operated in a general vehicle airbag system.

도 2는 종래의 차량용 에어백 시스템을 나타낸 개략적인 구성도이다.2 is a schematic diagram illustrating a conventional vehicle airbag system.

도 3은 본 발명에 의한 차량용 에어백 시스템의 구성을 나타낸 분해 사시도이다.3 is an exploded perspective view showing the configuration of a vehicle airbag system according to the present invention.

도 4은 본 발명에 의한 차량용 에어백 시스템의 작동로직을 나타낸 계통도이다.Figure 4 is a system diagram showing the operation logic of the vehicle airbag system according to the present invention.

(도면의 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

10 - 에어백 20 - 인플레이터10-Airbag 20-Inflator

22 - 지지 브라켓 24 - 제어유닛22-Support Bracket 24-Control Unit

26 - 신호제어유닛 26a - 신호분석부26-Signal Control Unit 26a-Signal Analysis Unit

26b - 출력단 28 - 케이블26b-Output 28-Cable

상기의 목적을 이루기 위하여 본 발명은 다수개의 인플레이터와, 상기 인플레이터에 연결되는 에어백과, 상기 인플레이터의 작동을 조절하는 제어유닛과, 상기 제어유닛에서 보내는 신호를 받아들여 분석함으로써 인플레이터에 의한 에어백의 팽창정도를 조절하는 신호분석부와 상기 신호분석부의 신호를 출력하는 출력단으로 이루어지는 신호제어유닛을 포함하는 차량용 에어백 시스템을 제공한다.In order to achieve the above object, the present invention provides a plurality of inflators, an airbag connected to the inflator, a control unit that controls the operation of the inflator, and an expansion of the airbag by the inflator by receiving and analyzing a signal from the control unit. It provides a vehicle airbag system comprising a signal control unit comprising a signal analysis unit for adjusting the degree and an output stage for outputting the signal of the signal analysis unit.

이에 따라, 본 발명에 의하면 차량에 가해지는 충격의 정도와 탑승자에 따라 에어백의 팽창정도가 조절됨으로써 불필요한 팽창압력에 의해 탑승자에게 무리한 충격이 가해지는 것을 막을 수 있게 된다.Accordingly, according to the present invention, the degree of impact applied to the vehicle and the degree of inflation of the airbag are adjusted according to the occupant, thereby preventing an excessive impact on the occupant by unnecessary inflation pressure.

이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 실시예는 본 발명의 범위를 한정하는 것이 아니고, 단지 예시로 제시된 것이며, 도면에서 종래의 구성과 동일한 부분에는 동일한 부호를 부여하고, 중복되는 설명을 생략한다.This embodiment is not intended to limit the scope of the present invention, but is presented by way of example only, the same reference numerals are assigned to the same parts as the conventional configurations in the drawings, and redundant descriptions are omitted.

본 발명의 실시예에 의한 차량용 에어백 시스템은 도 3에 나타난 것과 같이 다수개의 인플레이터(20)와, 상기 인플레이터(20)를 지지하는 지지 브라켓(22)과, 상기 인플레이터(20)에 연결되는 에어백(10)과, 상기 인플레이터(20)의 작동을 조절하는 제어유닛(24)과, 상기 제어유닛(24)에서 보내는 신호를 분석하는 신호제어유닛(26)과, 상기 신호제어유닛(26)에서 보내는 신호를 인플레이터(20)에 전달하는 케이블(28)을 포함하여 구성된다.As shown in FIG. 3, a vehicle airbag system according to an exemplary embodiment of the present invention includes a plurality of inflators 20, a support bracket 22 supporting the inflator 20, and an airbag connected to the inflator 20. 10), a control unit 24 for adjusting the operation of the inflator 20, a signal control unit 26 for analyzing a signal sent from the control unit 24, and the signal control unit 26 And a cable 28 for transmitting a signal to the inflator 20.

여기서, 상기 신호제어유닛(26)은 도 4에 나타난 것과 같이 제어유닛(24)에서 보내는 신호를 받아들여 분석하는 신호분석부(26a)와, 상기 신호분석부(26a)의 신호를 출력하는 출력단(26b)으로 이루어진다.Here, the signal control unit 26 is a signal analysis unit 26a for receiving and analyzing the signal sent from the control unit 24 as shown in Figure 4, and an output terminal for outputting the signal of the signal analysis unit 26a It consists of 26b.

따라서, 상술한 바와 같이 구성되는 본 발명의 실시예에 따르면 사용자가 제어유닛(24)을 통해 에어백(10)의 팽창정도를 조절할 수 있는 신호를 발하면 상기 신호를 신호제어유닛(26)이 분석하여 인플레이터(20)를 조작함으로써 에어백(10)의 팽창정도가 여러 단계로 조절된다.Therefore, according to the embodiment of the present invention configured as described above, when the user issues a signal that can adjust the degree of inflation of the airbag 10 through the control unit 24, the signal control unit 26 analyzes the signal. By operating the inflator 20 by the degree of expansion of the airbag 10 is adjusted in several stages.

즉, 노약자의 경우에는 에어백(10)의 팽창정도를 약하게 설정하여 에어백(10)의 팽창 시 탑승자에게 가해지는 충격을 낮춤으로써 승객의 안전을 더욱 향상시킬 수 있으며, 차량에 가해지는 충격의 정도에 따라서도 에어백(10)의 팽창정도가 조절됨으로써 불필요한 팽창압력에 의해 탑승자에게 무리한 충격이 가해지는 것을 막을 수 있게 된다.That is, in the case of the elderly, the degree of inflation of the airbag 10 is weakly set, thereby lowering the impact on the occupant when the airbag 10 is inflated, thereby further improving the safety of the passengers. Accordingly, by adjusting the degree of inflation of the airbag 10, it is possible to prevent an excessive impact on the occupant by unnecessary inflation pressure.

상술한 바와 같이 본 발명에 따른 차량용 에어백 시스템은 차량의 충돌정도와 탑승자에 따라 에어백의 팽창정도가 조절됨으로써 탑승자의 안전을 더욱 적극적으로 도모할 수 있다는 이점을 가지고 있다.As described above, the vehicle airbag system according to the present invention has the advantage that the safety of the occupant can be promoted more actively by adjusting the degree of inflation of the airbag according to the collision degree of the vehicle and the occupant.

Claims (1)

다수개의 인플레이터(20)와, 이 인플레이터(20)에 연결되는 에어백(10) 및 상기 인플레이터(20)의 작동을 조절하는 제어유닛(24)으로 이루어진 차량용 에어백 시스템에 있어서, 상기 제어유닛(24)에서 보내는 신호를 받아들여 분석함으로써 인플레이터(20)에 의한 에어백(10)의 팽창정도를 조절하는 신호분석부(26a)와, 이 신호분석부(26a)의 신호를 출력하는 출력단(26b)를 갖춘 신호제어유닛(26)으로 이루어지는 것을 특징으로 하는 차량용 에어백 시스템.In a vehicle airbag system comprising a plurality of inflators 20, an airbag 10 connected to the inflator 20, and a control unit 24 for controlling the operation of the inflator 20, the control unit 24 And a signal analyzer 26a for adjusting the degree of inflation of the airbag 10 by the inflator 20 and an output terminal 26b for outputting the signal from the signal analyzer 26a. Vehicle airbag system, characterized in that consisting of a signal control unit (26).
KR1019970053762A 1997-10-20 1997-10-20 Airbag system for a vehicle KR100259901B1 (en)

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KR1019970053762A KR100259901B1 (en) 1997-10-20 1997-10-20 Airbag system for a vehicle

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KR100259901B1 true KR100259901B1 (en) 2000-06-15

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KR100447751B1 (en) * 2002-07-16 2004-09-08 현대모비스 주식회사 Dual stage passenger air bag module

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