KR100422535B1 - a car crash perception device of air bag system - Google Patents
a car crash perception device of air bag system Download PDFInfo
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- KR100422535B1 KR100422535B1 KR10-2001-0018590A KR20010018590A KR100422535B1 KR 100422535 B1 KR100422535 B1 KR 100422535B1 KR 20010018590 A KR20010018590 A KR 20010018590A KR 100422535 B1 KR100422535 B1 KR 100422535B1
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- collision
- airbag
- case
- switch
- movable body
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
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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
- B60R21/0132—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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
본 발명은 차량용 에어백시스템의 충돌감지장치에 관한 것으로, 케이스(1)의 네 벽면에는 충돌스위치(2,3,4,5)들이 설치되고, 중앙에는 이동체(10)가 구비되되, 이 이동체(10)에 케이스(1)의 네 모서리에 일단이 고정된 스프링(6,7,8,9)들이 연결되는 구조로 이루어져 있다.The present invention relates to a collision detection device of an airbag system for a vehicle. Collision switches (2, 3, 4, 5) are installed on four walls of the case (1), and a movable body (10) is provided at the center thereof. 10) Springs 6, 7, 8, and 9 having one end fixed to the four corners of the case 1 are configured.
따라서, 차량에 충돌이 발생하였을 경우 상기 이동체(10)가 충돌방향으로 이동하여 해당 방향 충돌스위치(2,3,4,5)의 버튼(2a,3a,4a,5a)을 눌러줌으로써 4방향의 충돌을 정확히 감지할 수 있게 됨으로써 에어백의 전개제어를 보다 정확히 할 수 있게 된다.Therefore, when a collision occurs in the vehicle, the movable body 10 moves in the collision direction and pushes the buttons 2a, 3a, 4a, and 5a of the corresponding collision switches 2, 3, 4, and 5 in the four directions. By accurately detecting collisions, airbag deployment can be controlled more accurately.
또한, 전자파의 영향을 받는 전자부품이 사용되지 않았으므로 전자파의 작용에 의한 에어백의 오전개가 일어나지 않게 되는 장점도 있다.In addition, since the electronic component affected by the electromagnetic waves is not used, there is an advantage that the opening of the airbag by the action of the electromagnetic waves does not occur.
Description
본 발명은 차량용 에어백시스템의 충돌감지장치에 관한 것으로, 특히 전자파에 의한 오작동을 방지할 수 있으며, 전후좌우 4방향의 충돌을 모두 감지할 수 있어 보다 정확하게 에어백의 전개를 제어할 수 있도록 된 차량용 에어백시스템의 충돌감지장치에 관한 것이다.The present invention relates to a collision detection device of a vehicle airbag system, in particular, it is possible to prevent malfunction due to electromagnetic waves, it is possible to detect all four directions of the front, rear, left and right, the vehicle airbag that can more accurately control the deployment of the airbag It relates to a collision detection device of the system.
일반적으로 자동차용 에어백시스템에는 충돌감지장치가 구비되어 있으며, 이 충돌감지장치는 차량의 충돌시 발생되는 충격을 감지하여 에어백 제어유니트에 충돌신호를 전송하고, 이 충돌신호를 전달받은 상기 제어유니트는 기폭장치를 작동시켜 에어백이 전개되도록 함으로써 운전자 및 조수석 탑승자를 보호할 수 있도록 되어 있다.In general, a vehicle airbag system is provided with a collision detection device, the collision detection device detects the impact generated during the collision of the vehicle and transmits a collision signal to the airbag control unit, the control unit received the collision signal is By operating the detonator to allow the airbag to be deployed, it is intended to protect the driver and front passenger.
이와 같은, 종래 에어백시스템의 충돌감지장치에서는 압전센서를 이용한 것이 많았는데, 이는 차량충돌시 스프링에 구속되어 있던 스틸볼이 전진하여 압전센서를 압박함으로써 이 압전센서에서 발생된 전기신호가 제어유니트로 전달되는 구조로 이루어져 있었다.In the collision detection device of the conventional airbag system, a piezoelectric sensor was often used. The steel ball, which was restrained by the spring, moved forward and pressed the piezoelectric sensor to control the electric signal generated by the piezoelectric sensor. It consisted of a structure to be delivered.
그러나, 상기 압전센서는 매우 민감한 전자부품으로서 주변 전자파의 영향으로 오작동되어 차량에 충돌이 발생하지 않았는데도 충돌신호를 발생시켜 에어백이 오전개되는 문제점이 있었다.However, the piezoelectric sensor is a very sensitive electronic component, which is malfunctioned by the influence of surrounding electromagnetic waves and generates a crash signal even though the collision does not occur in the vehicle.
이는 탑승자의 상체에 에어백 전개로 인한 충격으로 상해를 줄 수도 있고, 운전자를 당황하게 하며 시야를 가려서 대형사고를 유발시키는 원인이 되기도 하였다.This may cause injury to the passenger's upper body due to the impact of the airbag deployment, or it may cause embarrassment and obstruct the driver, causing large accidents.
또한, 차량 전방으로부터의 충돌만을 감지할 수 있고 그 외 방향에서의 충돌은 감지할 수 없어서 후면 충돌시에는 에어백이 전개되지 않는(추돌사고시에도 시트에 부딪힌 탑승자의 몸이 다시 급하게 앞으로 숙여지므로 이를 보호하기 위하여 에어백이 전개될 필요가 있다.) 한편, 측면 충돌이 발생하였을 경우에는 에어백이 전개될 필요가 없음에도 불구하고 정면 충돌이 발생되었을 때와 마찬가지로 압전센서가 작동되어 에어백이 전개되기도 하는 문제점이 있었다.In addition, only collisions from the front of the vehicle can be detected and collisions from other directions cannot be detected so that the airbags are not deployed during the rear collision (the occupant's body hitting the seat is suddenly leaned forward again in a crash) On the other hand, when a side collision occurs, the piezoelectric sensor is activated and the air bag is deployed in the same way as when a front collision occurs, although the air bag does not need to be deployed. there was.
이러한 문제를 해결하기 위하여 충돌감지장치를 4개 설치하여 전후좌우의 충돌을 모두 감지하도록 하면, 그 설치비용이 증가하게 되는 또 다른 문제점이 있었다.In order to solve this problem, if four collision detection devices are installed to detect all collisions in front, rear, left and right, there is another problem that the installation cost increases.
이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로, 전자파의 영향을 받지 않게 되어 오신호 발생으로 인한 에어백의 오전개를 방지할 수 있을 뿐만 아니라, 하나의 충돌감지장치로도 차량의 전후좌우 4방향에서 일어나는 충돌을 모두 감지할 수 있게 되어 에어백의 전개 제어를 보다 정확하게 할 수 있도록 된 차량용 에어백시스템의 충돌감지장치를 제공함에 그 목적이 있다.Therefore, the present invention was invented to solve the above problems, and is not affected by electromagnetic waves, which can prevent the opening of the airbag due to the generation of an error signal, as well as the front, rear, left, and right sides of the vehicle with one collision detection device. It is an object of the present invention to provide a collision detection device of an airbag system for a vehicle that can detect all collisions occurring in four directions and thus more accurately control the deployment of the airbag.
도 1은 본 발명에 따른 자동차용 에어백시스템의 충돌감지장치의 구성도,1 is a block diagram of a collision detection device of an airbag system for a vehicle according to the present invention;
도 2내지 도 5는 본 발명의 작동상태도로서,2 to 5 is an operating state diagram of the present invention,
도 2는 정면 충돌시의 작동상태도,2 is an operational state diagram at the time of a frontal collision,
도 3은 후면 충돌시의 작동상태도,3 is an operating state at the time of rear collision,
도 4는 좌측면 충돌시의 작동상태도,4 is an operation state diagram at the time of the left side collision,
도 5는 우측면 충돌시의 작동상태도이다.5 is an operation state diagram when the right side collision.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 케이스, 2 : 정면 충돌스위치,1: case, 2: front collision switch,
3 : 후면 충돌스위치, 4 : 좌측면 충돌스위치,3: rear collision switch, 4: left collision switch,
5 : 우측면 충돌스위치, 2a,3a,4a,5a : 버튼,5: Right side collision switch, 2a, 3a, 4a, 5a: button,
6,7,8,9 : 스프링, 10 : 이동체,6,7,8,9: spring, 10: moving body,
10a : 돌출단.10a: protrusion.
상기와 같은 목적을 달성하기 위한 본 발명은, 상자형 케이스의 전후좌우 측면 중앙에 설치되며 각각 버튼이 구비된 정면/후면/좌측면/우측면 충돌스위치와, 상기 케이스의 중앙에 위치하다가 충돌이 발생하였을 때 해당 충돌방향으로 이동하여 상기 충돌스위치들의 버튼을 눌러주는 이동체로 이루어지되,상기 이동체의 네 모서리에는 각각 스프링들의 일단이 연결되고, 이 스프링들의 타단은 상기 케이스의 네 모서리에 고정된 것을 특징으로 한다.In order to achieve the above object, the present invention provides a front / rear / left / right side collision switch provided with buttons at front, rear, right and left sides of the box-shaped case, and a collision occurs while being located at the center of the case. It is made of a moving body to press the button of the collision switch to move in the corresponding collision direction, one end of the spring is connected to each of the four corners of the movable body, the other end of the spring is fixed to the four corners of the case It is done.
따라서, 충돌방향에 따라 스프링의 탄성력을 이기고 해당방향으로 이동체가 이동되어 충돌방향에 위치한 충돌스위치의 버튼을 눌러 신호를 발생시키게 되므로 4방향의 충돌을 모두 감지할 수 있을 뿐만 아니라, 전자부품이 사용되지 않았으므로 전자파의 영향에 따른 오신호 발생으로 에어백이 오전개되는 현상이 방지될 수 있게 된다.Therefore, it overcomes the elastic force of the spring according to the collision direction and the moving body is moved in the corresponding direction to generate a signal by pressing the button of the collision switch located in the collision direction, so not only can detect all four-way collision, but also use electronic components Since the airbag is not opened due to a false signal caused by the influence of electromagnetic waves, it is possible to prevent the airbag from being opened.
이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.
도 1은 본 발명에 따른 충돌감지장치의 구성도로서, 본 발명은 상자형 케이스(1)의 네 벽면 중앙에 각각 자신의 온(on)/오프(off) 버튼(2a,3a,4a,5a)을 구비한 정면 충돌스위치(2)와 후면 충돌스위치(3)와 좌측면 충돌스위치(4) 및 우측면 충돌스위치(5)가 설치되며, 상기 케이스(1)의 네 모서리에 4개 스프링(6,7,8,9)의 한쪽 단부가 고정되고, 이 스프링(6,7,8,9)들의 타단은 직육면체 형상으로 된 이동체(10)의 네 모서리에 고정되는 한편, 이 이동체(10)의 네 측면에는 모두 마주보는 방향에 설치된 충돌스위치(2,3,4,5)들의 버튼(2a,3a,4a,5a)을 눌러주는 돌출단(10a) 이 형성된 구조로 이루어진다.1 is a configuration diagram of a collision detection device according to the present invention, the present invention has its own on / off button (2a, 3a, 4a, 5a) in the center of the four walls of the box-shaped case (1), respectively The front collision switch (2) and the rear collision switch (3), the left collision switch (4) and the right collision switch (5) are installed, and four springs (6) are provided at four corners of the case (1). One end of, 7,8,9 is fixed, and the other ends of the springs 6,7,8,9 are fixed to four corners of the movable body 10 in the form of a cuboid, while the movable body 10 All four sides have a structure in which a protruding end 10a is formed to press the buttons 2a, 3a, 4a, and 5a of the collision switches 2, 3, 4, and 5 installed in opposite directions.
그리고, 충돌이 일어나지 않은 정상상태에서는 상기 4개의 스프링(6,7,8,9)들은 모두 힘 평형을 이룬 상태가 되어 상기 이동체(10)는 케이스(1)의 중앙에 위치된다.In the normal state in which the collision does not occur, the four springs 6, 7, 8, and 9 are in a state of force balance, and the movable body 10 is located at the center of the case 1.
따라서, 정면 충돌이 발생하였을 경우에는 도 2에 도시된 바와 같이, 이동체(10)가 전방으로의 관성력에 의하여 후방 두 스프링(8,9)의 탄성력을 이기고전방으로 이동하여 돌출단(10a)이 정면 충돌스위치(2)의 버튼(2a)를 눌러줌으로써 정면 충돌신호가 에어백 제어유니트로 전달된다.Therefore, when a frontal collision occurs, as shown in FIG. 2, the movable body 10 moves forward by moving forward the elastic force of the two rear springs 8 and 9 by the inertial force to the front, so that the protruding end 10a is moved. By pressing the button 2a of the front collision switch 2, the front collision signal is transmitted to the airbag control unit.
이와는 반대로 후면 충돌의 경우에는 도 3에서와 같이, 이동체(10)가 전방의 두 스프링(6,7)을 신장시키면서 뒤쪽으로 이동하여 후면 충돌스위치(3)의 버튼(3a)이 눌려짐으로써 후면 충돌신호가 발생된다.On the contrary, in the case of the rear collision, as shown in FIG. 3, the movable body 10 moves backward while extending the two springs 6 and 7 at the front, so that the button 3a of the rear collision switch 3 is pressed. A collision signal is generated.
또한, 좌측면 충돌이 발생하였을 때는 도 4의 경우와 같이, 상기 이동체(10)가 우측면의 두 스프링(6,9)의 탄성력을 이기고 좌측으로 이동하여 좌측면 충돌스위치(4)의 버튼(4a)을 눌러줌으로써 좌측면 충돌신호가 발생되며, 반대로 우측면 충돌시에는 도 5에 도시된 바와 같이 이동체(10)가 우측으로 이동하여 우측면 충돌스위치(5)의 버튼(5a)이 눌려짐으로써 우측면 충돌신호가 발생되어 제어유니트로 전달된다.In addition, when a left side collision occurs, as in the case of FIG. 4, the movable body 10 overcomes the elastic force of the two springs 6 and 9 on the right side and moves to the left side so that the button 4a of the left side collision switch 4 is moved. The left side collision signal is generated by pressing (). On the contrary, when the right side collision occurs, as shown in FIG. 5, the movable body 10 moves to the right side and the right side collision button 5a is pressed to press the right side collision switch 5. A signal is generated and sent to the control unit.
따라서, 하나의 충돌감지장치로써 4방향의 충돌을 모두 감지할 수 있을 뿐만 아니라, 각 방향의 충돌이 정확히 감지되어 제어유니트로 전달되므로 제어유니트는 좌우측면 충돌시에는 에어백을 전개시키지 않고 정면과 후면 충돌시에만 에어백을 전개시키는 등 에어백의 전개를 보다 정확하게 제어할 수 있게 된다.Therefore, not only all collisions in four directions can be detected with one collision detection device, but also collisions in each direction are accurately detected and transmitted to the control unit. It is possible to more precisely control the deployment of the airbag, such as deploying the airbag only in the event of a collision.
또한, 본 발명에 따른 충돌감지장치에는 전자부품이 사용되지 않았으므로 주변의 전자파에 영향을 받지 않게 되어 전자파로 인한 오신호 발생으로 제어유니트가 충돌상황을 오판하는 상황이 벌어지지 않는다.In addition, since the electronic component is not used in the collision detecting apparatus according to the present invention, the electronic device is not affected by the electromagnetic waves around it, and thus the control unit misjudges the collision situation due to the generation of an error signal due to the electromagnetic waves.
즉, 각 방향의 충돌이 정확히 감지됨과 더불어 전자파에 의한 오신호 발생이 없으므로 필요한 경우에만 정확히 에어백의 전개가 이루어질 수 있게 되고, 이에따라 에어백의 오전개 충격으로 인해 운전자 및 승차자가 부상을 입는 것이 방지되고, 운전자의 운전이 방해 받아 사고가 유발되는 문제점이 해결된다.That is, since collision in each direction is accurately detected and there is no occurrence of a false signal due to electromagnetic waves, the airbag can be accurately deployed only when necessary, thereby preventing the driver and the rider from being injured by the impact of the opening of the airbag. The problem that the driver's driving is interrupted and causes an accident is solved.
이상 설명한 바와 같이 본 발명에 의하면, 하나의 충돌감지장치로 4방향의 충돌을 모두 감지할 수 있게 되어 비용이 적게 들고, 전자파의 영향에 의해 에어백이 오작동되지 않으며, 각 방향의 충돌이 정확히 감지되어 꼭 필요한 경우에만 에어백이 전개되므로, 에어백 오전개에 의한 승차자의 부상이나 또 다른 충돌사고의 발생이 방지되는 효과가 있다.As described above, according to the present invention, it is possible to detect all collisions in four directions with one collision detection device, which is low in cost, and the airbag does not malfunction due to the influence of electromagnetic waves, and collisions in each direction are accurately detected. Since the airbag is deployed only when it is absolutely necessary, there is an effect that the injury of the occupant and the occurrence of another collision accident by the airbag opener are prevented.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0018590A KR100422535B1 (en) | 2001-04-09 | 2001-04-09 | a car crash perception device of air bag system |
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| KR10-2001-0018590A KR100422535B1 (en) | 2001-04-09 | 2001-04-09 | a car crash perception device of air bag system |
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| KR20020078284A KR20020078284A (en) | 2002-10-18 |
| KR100422535B1 true KR100422535B1 (en) | 2004-03-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053829U (en) * | 1973-09-19 | 1975-05-22 | ||
| JPS5867533U (en) * | 1981-10-30 | 1983-05-09 | トヨタ自動車株式会社 | Air bag ignition system |
| KR19980029415A (en) * | 1996-10-25 | 1998-07-25 | 박병재 | Vehicle airbag shock detector |
| KR19980060259A (en) * | 1996-12-31 | 1998-10-07 | 박병재 | Automotive Airbag Sensors |
| JPH11326364A (en) * | 1998-05-08 | 1999-11-26 | Matsushita Electric Works Ltd | Shock detector |
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2001
- 2001-04-09 KR KR10-2001-0018590A patent/KR100422535B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053829U (en) * | 1973-09-19 | 1975-05-22 | ||
| JPS5867533U (en) * | 1981-10-30 | 1983-05-09 | トヨタ自動車株式会社 | Air bag ignition system |
| KR19980029415A (en) * | 1996-10-25 | 1998-07-25 | 박병재 | Vehicle airbag shock detector |
| KR19980060259A (en) * | 1996-12-31 | 1998-10-07 | 박병재 | Automotive Airbag Sensors |
| JPH11326364A (en) * | 1998-05-08 | 1999-11-26 | Matsushita Electric Works Ltd | Shock detector |
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