KR0170825B1 - Fuel cut off device in an airbag system - Google Patents
Fuel cut off device in an airbag system Download PDFInfo
- Publication number
- KR0170825B1 KR0170825B1 KR1019960019552A KR19960019552A KR0170825B1 KR 0170825 B1 KR0170825 B1 KR 0170825B1 KR 1019960019552 A KR1019960019552 A KR 1019960019552A KR 19960019552 A KR19960019552 A KR 19960019552A KR 0170825 B1 KR0170825 B1 KR 0170825B1
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- KR
- South Korea
- Prior art keywords
- fuel
- vehicle
- airbag
- inflator
- control module
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle
- B60K28/14—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle responsive to accident or emergency, e.g. deceleration, tilt of vehicle
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/13—Failsafe arrangements
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- 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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- 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
- B60Y2400/40—Actuators for moving a controlled member
- B60Y2400/404—Electro-magnetic actuators, e.g. with an electromagnet not rotating for moving a clutching member
- B60Y2400/4045—Electro-magnetic valves, i.e. solenoids
Abstract
본 발명은 차량충돌시 전자제어모듈에서 연료인젝터로 전송하는 연료분사신호를 차단하여 엔진구동이 정지되도록 하는 차량용 에어백시스템의 연료차단장치에 관한 것이다.The present invention relates to a fuel cut-off device of an airbag system for a vehicle which interrupts a fuel injection signal transmitted from an electronic control module to a fuel injector in the event of a vehicle collision, thereby stopping engine driving.
본 발명은 차실의 에어백을 팽창시키는 인플레이터(10)와, 충격력에 따라 통전되는 충돌감지센서(20)를 직렬접속하여 차량충돌시 상기 인플레이터(10)에 전류가 흐르도록 구성되는 차량용 에어백시스템에 있어서, 상기 인플레이터(10)와 상기 충돌감지센서(20)의 접속점은 타이머(31)의 트리거단자에 접속되고, 상기 타이머(31)의 출력단은 다수의 가동접점(32b)을 연동시키는 릴레이(32)의 코일(32a)에 접속되고, 상기 다수 가동접점(32b)의 양단은 각각 연료분사신호를 출력하는 전자제어모듈(ECM)의 출력단과, 엔진실린더로 연료를 분사하는 다수의 연료인젝터(60)에 내장된 솔레노이드(61)와의 사이에 접속되어, 차량충돌시 상기 전자제어모듈(ECM)의 연료분사신호가 상기 가동접점(32b)들에 의해 차단되도록 구성되어서, 차량충돌시 에어백의 작동으로 운전자가 당황하여 발생시킬 수 있는 사고를 방지한다.An inflator (10) for inflating an airbag in a vehicle cabin and a collision detection sensor (20) energized in accordance with an impact force are connected in series to allow an electric current to flow in the inflator (10) The connection point between the inflator 10 and the collision detection sensor 20 is connected to the trigger terminal of the timer 31 and the output terminal of the timer 31 is connected to the relay 32 for interlocking the plurality of movable contacts 32b, And both ends of the multiple movable contact 32b are connected to an output terminal of an electronic control module (ECM) for outputting a fuel injection signal and a plurality of fuel injectors 60 for injecting fuel into the engine cylinder, And the fuel injection signal of the electronic control module (ECM) is blocked by the movable contacts (32b) in the event of a vehicle collision, so that the operation of the airbag Sugar Prevent accidents caused by sulfur.
Description
제1도는 통상적인 에어백시스템의 회로구성도.Figure 1 is a circuit diagram of a typical airbag system.
제2도는 본 발명의 실시예에 의한 회로구성도.FIG. 2 is a circuit configuration diagram according to an embodiment of the present invention; FIG.
* 도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS
10 : 인플레이터 20 : 충돌감지센서10: Inflator 20: Collision detection sensor
31 : 타이머 32 : 릴레이31: Timer 32: Relay
ECM : 전자제어모듈 60 : 연료인젝터ECM: electronic control module 60: fuel injector
61 : 솔레노이드61: Solenoid
본 발명은 차량용 에어백시스템의 연료차단장치에 관한 것으로, 좀더 상세하게는 차량충돌시 에어백의 작동으로 운전자가 당황하여 발생시킬 수 있는 사고를 방지하기 위해 전자제어모듈에서 연료인젝터로 전송하는 연료분사신호를 차단하여 엔진구동이 정지되도록 하는 차량용 에어백시스템의 연료차단장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel cut-off device of an airbag system for a vehicle, and more particularly to a fuel cut- Thereby stopping engine driving. [0002] The present invention relates to an airbag system for a vehicle.
통상적으로 자동차에는 차량충돌시 프론트시트의 탑승자가 관성력에 의해서 윈드실드글라스, 스티어링 휠 및 인스트루먼트패널에 부딪혀 당하게 되는 부상을 줄이기 위해, 차량충돌시 운전석 및 조수석 전방에서 에어백이 팽창되도록 하는 에어백시스템이 장착되고 있다.BACKGROUND ART Automobiles are generally equipped with an airbag system that inflates an airbag in front of a driver's seat and a passenger seat in the event of a vehicle collision, in order to reduce the injury that a passenger of the front seat crashes against a windshield glass, a steering wheel and an instrument panel .
이러한 종래의 에어백시스템은 전자적으로는 제1도에 도시된 바와같이, 차량충돌시의 충격력에 의해 통전되어 배터리전원을 접속하는 충돌감지센서(20)와, 상기 충돌감지센서(20)의 통전에 따라 전류가 흐르게 되어 차실에 설치된 에어백에 가스가 충만되도록 작약을 폭발시키는 인플레이터(10)로 이루어진다.As shown in FIG. 1, the conventional airbag system includes a collision detection sensor 20 that is energized by an impact force at the time of a vehicle collision and connects battery power, And an inflator (10) for blowing an electric current so that the gas is filled in the airbag installed in the vehicle room.
이와같이 회로구성되는 종래의 에어백시스템은 차량충돌시 충돌감지센서(20)를 통해 인플레이터(10)로 전류가 흐르게 되므로 작약이 폭발되며, 이 폭발로 팽창된 가스에 의해서 차실전방에 설치된 에어백이 팽창되어 탑승자의 안면, 두부 등의 신체부위에 입게 되는 부상을 방지하도록 하고 있다.In the conventional airbag system configured in this way, a current flows to the inflator 10 through the collision detection sensor 20 in the event of a vehicle collision, so that the airbag inflated by the explosion-inflated gas is inflated Thereby preventing injury to the body parts of the occupant's face, tofu, and the like.
그러나, 상기한 바와같은 팽창된 에어백은 운전자의 시야를 가리게 되고, 이에 당황한 운전자는 브레이크페달 대신에 가속페달을 밟게 될 수 있다. 또한, 차량간의 정면충돌시에는 운전자의 운전자의 몸이 관성에 의해 전방으로 이동하게 되므로 본의아니게 가속페달을 밟을 수도 있다. 이와같이 가속페달을 밟게 되면 자동차는 가속되어 2차적인 사고를 발생시키게 된다는 문제점이 있었다.However, the inflated airbag as described above hides the driver ' s field of view, and the driver who is upset by this may be able to step on the accelerator pedal instead of the brake pedal. Further, at the time of a frontal collision between the vehicles, the body of the driver of the driver is moved forward due to inertia, so that the accelerator pedal can be depressed unintentionally. When the accelerator pedal is depressed in this manner, the automobile is accelerated, causing a secondary accident.
본 발명은 상기한 바와같은 문제점을 해결하기 위해 안출된 것으로, 차량충돌시 에어백의 작동과 동시에 에어백 작동신호에 의해서 엔진 실린더의 연료분사를 차단하여 엔진구동을 정지시키는 차량용 에어백시스템의 연료차단장치를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION The present invention is conceived to solve the problems described above, and it is an object of the present invention to provide a fuel cut-off device for an airbag system for a vehicle, which stops fuel injection of an engine cylinder by an airbag operation signal The purpose is to provide.
이러한 목적을 달성하기 위한 본 발명에 따르면, 차실의 에어백을 팽창시키는 인플레이터(10)와, 충격력에 따라 통전되는 충돌감지센서(20)를 직렬접속하여 차량충돌시 상기 인플레이터(10)에 전류가 흐르도록 구성되는 차량용 에어백시스템에 있어서, 상기 인플레이터(10)와 상기 충돌감지센서(20)의 접속점은 타이머(31)의 트리거단자에 접속되고, 상기 타이머(31)의 출력단은 다수의 가동접점(32b)을 연동시키는 릴레이(32)의 코일(32a)에 접속되고, 상기 다수 가동접점(32b)의 양단은 각각 연료분사신호를 출력하는 전자제어모듈(ECM)의 출력단과, 엔진실린더로 연료를 분사하는 다수의 연료인젝터(60)에 내장된 솔레노이드(61)와의 사이에 접속되어, 차량충돌시 상기 전자제어모듈(ECM)의 연료분사신호가 상기 가동접점(32b)들에 의해 차단되도록 구성됨을 특징으로 하는 차량용 에어백시스템의 연료차단장치가 제공된다.According to the present invention, an inflator (10) for inflating a vehicle airbag and a collision detection sensor (20) energized according to an impact force are connected in series to supply current to the inflator (10) The connection point of the inflator 10 and the collision detection sensor 20 is connected to the trigger terminal of the timer 31 and the output terminal of the timer 31 is connected to the plurality of movable contacts 32b And both ends of the multiple movable contact 32b are connected to an output terminal of an electronic control module (ECM) which outputs a fuel injection signal, and an output terminal of an electronic control module The fuel injection signal of the electronic control module (ECM) is blocked by the movable contacts (32b) when a vehicle collides with the solenoid (61) built in the plurality of fuel injectors (60) U The fuel shut-off system for a vehicle air bag device which is provided.
이하, 도면을 참조하여 본 발명의 바람직한 실시예를 더욱 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
제2도는 본 발명의 실시예에 의한 회로구성도로서, 인플레이터(10)와 충돌감지센서(20)가 직렬접속된 접속점에 타이머(31)의 트리거단자가 접속되고, 상기 타이머(31)의 출력단에는 다수의 가동접점(32b)을 갖는 릴레이(32)의 코일(32a)이 접속되고, 상기 가동접점(32b)들의 양단에는 전자제어모듈(ECM)의 출력단과 연료인젝터(60)에 내장된 솔레노이드(61)에 접속되어 구성된다.2 is a circuit configuration diagram according to an embodiment of the present invention in which a trigger terminal of a timer 31 is connected to a connection point to which the inflator 10 and the collision detection sensor 20 are connected in series, A coil 32a of a relay 32 having a plurality of movable contacts 32b is connected to both ends of the movable contacts 32b and an output terminal of the electronic control module ECM and a solenoid (61).
상기 릴레이(32)에는 코일(32a)의 여자에 따라 연동되어 비접속상태로 되는 다수의 가동접점(32b)이 내장된다. 또, 상기 전자제어모듈(ECM)은 엔진계통의 각부에 설치되는 각종센서(20)의 정보에 따라 적정한 연료분사시기를 판별하여 연료분사신호를 출력하는 제어장치로, 종래에는 상기한 다수의 연료인젝터(60)에 내장된 각각의 솔레노이드(61)에 직렬되어 연료분사신호를 전송함으로써 엔진실린더 내로 분사되는 연료량을 조절하였으나, 본 발명에서는 타이머(31)의 출력에 따라 구동되는 릴레이(32)의 작동여부에 따라 전송되거나 또는 전송이 차단되도록 구성된다. 상기 타이머(31)에 접속되는 주변소자들 중 미설명부호 R1 및 R2는 타이머(31)의 스레숄드전압을 조절하기 위한 저항이고, R3 및 C1은 타이머(31)의 작동주기를 결정하는 저항 및 콘덴서이며, C2는 타이머(31)의 고주파잡음제거용 콘덴서이다.The relay 32 includes a plurality of movable contacts 32b interlocked with the coil 32a to be in a disconnected state. In addition, the electronic control module (ECM) is a control device for outputting a fuel injection signal by discriminating an appropriate fuel injection timing according to information of various sensors (20) installed in each part of the engine system. Conventionally, The amount of fuel injected into the engine cylinder is controlled by transmitting a fuel injection signal in series with each of the solenoids 61 built in the injector 60. In the present invention, And is configured to be transmitted according to whether it is operated or to be blocked from transmission. Among the peripheral elements connected to the timer 31, reference numerals R1 and R2 denote resistors for adjusting the threshold voltage of the timer 31, R3 and C1 are resistors for determining the operation period of the timer 31, And C2 is a high frequency noise removing capacitor of the timer 31. [
이와같이 구성된 본 발명의 작용효과를 설명하면 다음과 같다.Hereinafter, the operation and effect of the present invention will be described.
본 발명은 차량충돌시 소정이상의 충격력에 의해 충돌감지센서(20)가 턴온되어 통전되면, 배터리전류는 인플레이터(10)에 흐르게 되어 작약을 폭발시킴으로써 차실의 에어백을 팽창시켜 운전자 및 탑승자를 보호하게 된다. 이와 동시에, 상기 충돌감지센서(20)의 통전에 따라 타이머(31)의 트리거단자가 어스되므로 타이머(31)는 소정주기동안 출력단자를 어스하여 릴레이(32)를 구동시킨다. 이에 따라, 릴레이(32)의 가동접점(32b)들은 비접속상태가 되어 전자제어모듈(ECM)에서 각각의 연료인젝터(60)의 솔레노이드로 출력하는 연료분사신호를 차단하게 된다.In the present invention, when the collision detection sensor 20 is turned on by the impact force exceeding a predetermined level by the impact force, the battery current flows to the inflator 10 to explode the airbag, thereby expanding the airbag in the vehicle compartment to protect the driver and the passenger . At the same time, since the trigger terminal of the timer 31 is grounded according to the energization of the collision detection sensor 20, the timer 31 grounds the output terminal for a predetermined period to drive the relay 32. Accordingly, the movable contacts 32b of the relay 32 are disconnected, and the electronic control module (ECM) blocks the fuel injection signal output to the solenoid of each fuel injector 60. [
따라서, 운전자는 에어백이 팽창된 상태에서 당황하여 가속페달을 밟더라도 전자제어모듈(ECM)에서 출력되는 연료분사신호가 연료인젝터(60)의 솔레노이드(61)로 전송되지 않게 되므로 엔진구동은 정지하게 된다.Therefore, even if the driver depresses the accelerator pedal in the inflated state of the airbag, the fuel injection signal outputted from the electronic control module (ECM) is not transmitted to the solenoid 61 of the fuel injector 60, do.
이상에서 설명한 바와같이 본 발명은 차량충돌시 에어백작동과 동시에 엔진으로의 연료분사가 차단되도록 하여 엔진구동을 정지시킴으로써, 에어백작동으로 인해 운전자가 당황하여 발생될 수 있는 사고를 방지하는 효과가 있다.As described above, according to the present invention, when the vehicle collides with the airbag, fuel injection into the engine is interrupted at the same time as the airbag operation is stopped to stop the engine driving, thereby preventing an accident that may occur due to the operation of the airbag.
Claims (1)
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Application Number | Priority Date | Filing Date | Title |
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KR1019960019552A KR0170825B1 (en) | 1996-06-03 | 1996-06-03 | Fuel cut off device in an airbag system |
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KR1019960019552A KR0170825B1 (en) | 1996-06-03 | 1996-06-03 | Fuel cut off device in an airbag system |
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KR980001471A KR980001471A (en) | 1998-03-30 |
KR0170825B1 true KR0170825B1 (en) | 1999-02-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960019552A KR0170825B1 (en) | 1996-06-03 | 1996-06-03 | Fuel cut off device in an airbag system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0170825B1 (en) |
-
1996
- 1996-06-03 KR KR1019960019552A patent/KR0170825B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR980001471A (en) | 1998-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |