KR20070059356A - Clash detecting sensor - Google Patents

Clash detecting sensor Download PDF

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Publication number
KR20070059356A
KR20070059356A KR1020050118108A KR20050118108A KR20070059356A KR 20070059356 A KR20070059356 A KR 20070059356A KR 1020050118108 A KR1020050118108 A KR 1020050118108A KR 20050118108 A KR20050118108 A KR 20050118108A KR 20070059356 A KR20070059356 A KR 20070059356A
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KR
South Korea
Prior art keywords
collision
support rod
ball
vehicle
inertial body
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KR1020050118108A
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Korean (ko)
Inventor
이기수
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기아자동차주식회사
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Priority to KR1020050118108A priority Critical patent/KR20070059356A/en
Publication of KR20070059356A publication Critical patent/KR20070059356A/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
    • 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
    • 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
    • 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
    • G01P15/0802—Details

Abstract

A collision detecting sensor is provided to readily detect a front or rear collision, a side collision, a diagonal collision, and so on, through a single sensor to operate an air bag. A collision detecting sensor includes a plurality of ground contact surfaces(1) and an inertia body. The ground surfaces are disposed around longitudinal and lateral centers of a vehicle body(3) in a circumferential direction thereof. The inertia body is pivotally installed at the center of a circle formed by the ground surfaces. The inertial body includes a support rod(2a) and a ball(2b). The support rod is pivotally installed at the vehicle body. The ball is integrally formed with an upper end of the support rod. The support rod is formed of an elastic material to be appropriately bent in an impact direction.

Description

충돌감지센서{clash detecting sensor}Collision detecting sensor

도 1은 본 발명에 따른 충돌감지센서의 장착 설명도,1 is an explanatory diagram of the mounting of the collision detection sensor according to the present invention;

도 2는 본 발명의 1실시예에 따른 도 1의 A-A선 단면도,2 is a cross-sectional view taken along line A-A of FIG. 1 according to an embodiment of the present invention;

도 3은 본 발명의 2실시예에 따른 도 2의 대응 단면도이다.3 is a corresponding cross-sectional view of FIG. 2 in accordance with a second embodiment of the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1-접지면 2-관성체1-ground 2-inertia

2a-지지로드 2b-볼2a-supporting rod 2b-ball

3-차체3-body

본 발명은 차량에 장착되어 차량의 충돌을 감지하는 센서에 관한 것으로, 특히 원형을 이루도록 배열된 접지면과 중심에 설치된 관성체를 매개로 차량의 충돌 방향을 용이하게 감지할 수 있도록 한 충돌감지센서에 관한 것이다.The present invention relates to a sensor mounted on a vehicle for detecting a collision of the vehicle, and particularly, a collision detection sensor for easily detecting a collision direction of the vehicle through a ground plane arranged to form a circle and an inertial body installed at the center. It is about.

종래 차량에는 충돌을 감지해서 차량에 장착된 에어백을 작동시키는 충돌감지센서가 장착되어 있는 데, 상기 충돌감지센서는 가속도센서로서 외팔보 형태의 빔과, 이 빔의 변형시에 저항이 가변되게 빔에 설치된 확산 저항 소자를 및, 상기 확산 저항 소자에 연결된 집적회로를 구비하고서, 차량의 충돌 사고 발생시에 상기 빔이 변형되면 빔의 변형부에 배치된 확산 저항 소자에 흐르는 전압의 변화량을 감지해서 충돌 가속도를 감지하게 되어 있다.Conventional vehicles are equipped with a collision detection sensor for detecting a collision to operate the airbag mounted on the vehicle, the collision detection sensor is an acceleration sensor cantilever-shaped beam, the resistance of the beam is variable in deformation of the beam A diffusion resistor element provided and an integrated circuit connected to the diffusion resistor element, and when the beam is deformed at the time of collision of the vehicle, the acceleration of the collision is sensed by detecting the amount of change of the voltage flowing through the diffusion resistor element disposed at the deformation part of the beam. To detect.

그런데, 상기와 같은 종래의 충돌감지센서는 특정한 일방향으로의 가속도만을 감지하게 되어 있어서, 차량의 여러 방향에서의 충돌을 감지하려면 다수개의 충돌감지센서를 사용해야 하고, 이는 중량 및 원가의 상승 요인으로 작용하는 문제점이 있었다.By the way, the conventional collision detection sensor as described above is to detect only the acceleration in a specific one direction, to use a plurality of collision detection sensors to detect a collision in various directions of the vehicle, which acts as a factor of the increase in weight and cost There was a problem.

이에 본 발명은 상기와 같은 사정을 감안하여 안출된 것으로, 단지 하나의 센서만으로 차량의 전후 방향으로의 충돌과 추돌, 좌우 방향으로의 충돌 및 대각선 방향으로의 충돌을 용이하게 감지해서 에어백을 작동시킬 수 있도록 하여 차량의 중량 및 원가 절감을 도모할 수 있도록 한 충돌감지센서를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and the airbag can be operated by easily detecting collision and collision in the front and rear direction, collision in the left and right direction and collision in the diagonal direction with only one sensor. The purpose of the present invention is to provide a collision detection sensor that can reduce the weight and cost of the vehicle.

상기와 같은 목적을 달성하기 위한 본 발명은, 차체에 원주방향으로 소정 간격을 두고 배열되면서 전원의 마이너스 전극이 연결된 다수개의 접지면과, 이 접지면이 형성하는 원형의 중심에 회동가능하게 설치되면서 전원의 플러스 전극이 연결된 관성체를 구비하고 있다.The present invention for achieving the above object is, while being arranged at a predetermined interval in the circumferential direction to the vehicle body, a plurality of ground planes connected to the negative electrode of the power supply, and rotatably installed in the center of the circle formed by the ground plane An inertial body to which a positive electrode of a power supply is connected is provided.

바람직하기로는, 상기 관성체가 차체에 일단이 회동가능하게 장착된 지지로드와, 이 지지로드의 타단에 일체로 형성된 볼을 구비한 것을 특징으로 한다.Preferably, the inertial body has a support rod having one end rotatably mounted to the vehicle body, and a ball integrally formed at the other end of the support rod.

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

도 1에는 본 발명에 따른 충돌감지센서의 장착 구성이 도시되어 있는 바, 즉 차체의 길이방향 및 좌우 폭 방향 중앙 부위에 다수개의 접지면(1)이 원주 방향으로 소정 간격을 두고 원형을 이루도록 배열되고, 상기 접지면이 형성하는 원형의 중심에는 관성체(2)가 회동가능하게 장착되어 있다.Figure 1 shows the mounting configuration of the collision detection sensor according to the present invention, that is, a plurality of ground planes (1) arranged in a circle at a predetermined interval in the circumferential direction in the center portion of the longitudinal direction of the vehicle body in the longitudinal direction In the center of the circle formed by the ground plane, the inertial body 2 is rotatably mounted.

도 2에는 본 발명의 1실시예에 따른 구조가 자세히 도시되어 있는 바, 즉 상기 관성체(2)는 차체(3)에 회동가능하게 장착된 지지로드(2a)와, 이 지지로드(2a)의 상단에 일체로 형성된 볼(2b)을 구비하고, 상기 접지면은 상기 관성체의 상부에서 상기 볼과 인접해서 배치된다.2 shows a structure according to an embodiment of the present invention in detail, that is, the inertial body 2 is a support rod (2a) rotatably mounted to the vehicle body (3), the support rod (2a) It is provided with a ball (2b) formed integrally at the top of the, the ground plane is disposed adjacent to the ball at the top of the inertial body.

상기 지지로드(2a)는 소정 이상의 충격을 받으면 충격방향으로 적절히 굽혀질 수 있는 탄성체로 구성된다.The support rod 2a is formed of an elastic body that can be bent properly in the impact direction when subjected to a predetermined shock.

상기 관성체(2)에는 전원의 플러스 전극이 연결되는 반면에 상기 각 접지면에는 전원의 마이너스 전극이 연결되어 있다.The positive electrode of the power source is connected to the inertial body 2, while the negative electrode of the power source is connected to each ground plane.

이에 따라, 차량에 충격이 가해지면 상기 관성체가 충격을 받은 방향으로 회동하면서 충격 방향에 위치하는 하나의 접지면과 접촉하게 되어, 차량의 충돌방향을 상기 볼과 해당 접지면을 통해 용이하게 감지할 수 있게 되고, 이렇게 감지된 감지신호를 에어백 제어유니트에 인가하여 에어백의 작동을 제어할 수 있게 되는 것이다.Accordingly, when an impact is applied to the vehicle, the inertial body rotates in the impacted direction and comes into contact with one ground plane positioned in the impact direction, so that the collision direction of the vehicle can be easily detected through the ball and the corresponding ground plane. It is possible to control the operation of the airbag by applying the detected signal to the airbag control unit.

상기 접지면은 원주 방향으로 원형을 이루도록 배열되어 있으면서 상기 관성체는 그 중심에 설치되어 있기 때문에 차량이 전후 방향 혹은 좌우 방향 또는 대각 선 방향 등의 어떠한 방향으로 충돌하더라도 상기 관성체가 충격을 받은 방향으로 이동해서 해당 접지면과 접촉되므로, 차량의 충돌방향을 용이하게 감지할 수 있게 되는 것이다.The ground plane is arranged to form a circle in the circumferential direction and the inertial body is installed at the center thereof, so that the inertial body is impacted even if the vehicle collides in any direction such as front and rear, left and right directions or diagonal direction. Since it moves and contacts the ground plane, the collision direction of the vehicle can be easily detected.

상기와 같이 관성체가 충돌방향으로 회동한 후에는 상기 지지로드가 그 자체의 탄성력으로 원래의 위치로 복귀되게 된다.After the inertial body is rotated in the collision direction as described above, the support rod is returned to its original position by its elastic force.

도 3에는 본 발명의 2실시예에 따른 구조가 도시되어 있는 바, 상기 관성체가 상부에 설치되어 있는 반면에 상기 접지면은 관성체의 하부에 배치되어 있는 점에서 차이가 있고, 나머지의 구성은 상기 1실시예와 동일하며, 그 작용 및 효과도 동일하다.3 shows a structure according to the second embodiment of the present invention, the inertial body is installed on the upper side, while the ground plane is different in that it is disposed in the lower portion of the inertial body, the rest of the configuration It is the same as that of Example 1, and its operation and effect are also the same.

이상 설명한 바와 같이 본 발명에 따른 충돌감지센서에 의하면, 차량의 충돌방향을 단지 하나의 센서만으로 용이하게 감지할 수 있으므로, 충돌감지센서의 장착 개수를 줄여서 차량의 중량과 원가의 절감을 도모할 수 있는 등의 효과가 있게 된다.As described above, according to the collision detection sensor according to the present invention, since the collision direction of the vehicle can be easily detected by only one sensor, the weight and cost of the vehicle can be reduced by reducing the number of installation of the collision detection sensor. There is such an effect.

Claims (4)

차체에 원주방향으로 소정 간격을 두고 배열되면서 전원의 마이너스 전극이 연결된 다수개의 접지면과, 이 접지면이 형성하는 원형의 중심에 회동가능하게 설치되면서 전원의 플러스 전극이 연결된 관성체를 구비한 충돌감지센서.Collision having a plurality of ground planes connected to the negative electrode of the power supply and arranged in the circumferential direction at a predetermined interval in the vehicle body, and an inertial body connected to the positive electrode of the power supply while being rotatably installed in the center of the circle formed by the ground plane. Sensor. 제 1항에 있어서, 상기 관성체가 차체에 일단이 회동가능하게 장착된 지지로드와, 이 지지로드의 타단에 일체로 형성된 볼을 구비한 것을 특징으로 하는 충돌감지센서.The collision detection sensor according to claim 1, wherein the inertial body includes a support rod having one end rotatably mounted to the vehicle body and a ball integrally formed at the other end of the support rod. 제 2항에 있어서, 차량의 높이 방향으로 상기 관성체의 지지로드가 하부에 위치되는 반면에 상기 볼이 상부에 위치되고, 상기 접지면이 상기 볼과 인접해서 상부에 배치된 것을 특징으로 하는 충돌감지센서.The collision as claimed in claim 2, wherein the support rod of the inertial body is located at the lower side in the height direction of the vehicle while the ball is positioned at the upper side and the ground plane is disposed at the upper side adjacent to the ball. Sensor. 제 2항에 있어서, 차량의 높이 방향으로 상기 관성체의 지지로드가 상부에 위치되는 반면에 상기 볼이 하부에 위치되고, 상기 접지면이 상기 볼과 인접해서 하부에 배치된 것을 특징으로 하는 충돌감지센서.The collision as claimed in claim 2, wherein the support rod of the inertial body is located at the upper side in the height direction of the vehicle while the ball is positioned at the bottom, and the ground plane is disposed at the bottom adjacent to the ball. Sensor.
KR1020050118108A 2005-12-06 2005-12-06 Clash detecting sensor KR20070059356A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112991885A (en) * 2021-02-04 2021-06-18 安徽国华光电技术有限公司 Collision receiving device for pile test
CN114228656A (en) * 2022-01-07 2022-03-25 无锡商业职业技术学院 Collision direction recognition device of intelligent automobile safety airbag

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112991885A (en) * 2021-02-04 2021-06-18 安徽国华光电技术有限公司 Collision receiving device for pile test
CN112991885B (en) * 2021-02-04 2023-06-27 安徽国华光电技术有限公司 Collision receiving device for pile test
CN114228656A (en) * 2022-01-07 2022-03-25 无锡商业职业技术学院 Collision direction recognition device of intelligent automobile safety airbag
CN114228656B (en) * 2022-01-07 2023-03-10 无锡商业职业技术学院 Collision direction recognition device of intelligent automobile safety airbag

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