KR100599561B1 - Passenger's seat status measurement device in vehicle - Google Patents

Passenger's seat status measurement device in vehicle Download PDF

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Publication number
KR100599561B1
KR100599561B1 KR1020040108721A KR20040108721A KR100599561B1 KR 100599561 B1 KR100599561 B1 KR 100599561B1 KR 1020040108721 A KR1020040108721 A KR 1020040108721A KR 20040108721 A KR20040108721 A KR 20040108721A KR 100599561 B1 KR100599561 B1 KR 100599561B1
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South Korea
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seat
passenger
seated
airbag
sensors
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KR1020040108721A
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Korean (ko)
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KR20060070093A (en
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임국기
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현대모비스 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • 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
    • B60R21/015—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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • B60Y2304/05—Reducing production costs, e.g. by redesign

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)

Abstract

본 발명은 차량 탑승객의 착석 상태 측정 장치에 관한 것으로, 시트에 탑승객의 신체조건을 측정해 착석 승객에 적합한 시트 상태와 작동되는 에어백에 의한 탑승객의 부상 야기를 방지함에 그 목적이 있다.The present invention relates to an apparatus for measuring a seating state of a vehicle occupant, and an object of the present invention is to measure a physical condition of a passenger on a seat and to prevent injuries of a passenger by an airbag operated with a seat state suitable for a seated passenger.

상기와 같은 목적을 달성하기 위한 본 발명은, 승객의 착석 위치 판단을 위한 측정 장치는 착석할 수 있도록 쿠션이 있는 시트(1)를 이동시키도록 장착하면서 차체 바닥에 고정되는 시트프레임(2)부위에 구비된 센서와, 상기 센서의 신호를 받아 시트(1)에 가해지는 하중의 편중여부를 판단해 착석된 승객의 착석 상태에 대한 데이터를 에어백콘트롤러(6)로 전송해 에어백 전개 상태를 제어하도록 하는 체형감지콘트롤러(5)로 이루어진 것을 특징으로 한다. In order to achieve the above object, the present invention provides a measuring device for determining a seating position of a passenger seat frame (2) that is fixed to the bottom of the vehicle body while mounting to move the seat (1) with a cushion to be seated And a sensor provided in the sensor to determine the bias of the load applied to the seat 1 and transmit data on the seated state of the seated passenger to the airbag controller 6 to control the airbag deployment state. Characterized in that it consists of a body type sensing controller (5).

Description

차량 탑승객의 착석 상태 측정 장치{Passenger's seat status measurement device in vehicle}{Passenger's seat status measurement device in vehicle}

도 1은 본 발명에 따른 차량 탑승객의 착석 상태 측정 장치의 구성도1 is a block diagram of an apparatus for measuring a seating state of a vehicle occupant according to the present invention

도 2는 본 발명에 따라 승객의 착석 위치에 의한 에어백 작동을 제어하기 위한 순서도2 is a flow chart for controlling airbag operation by a seated position of a passenger in accordance with the present invention.

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

1 : 시트 2 : 시트프레임1: Sheet 2: Seat Frame

3 : 후방센서 3a,3b : 제1·2후방웨이트센서3: Rear sensor 3a, 3b: 1st and 2nd rear weight sensor

4 : 전방센서 4a,4b : 제1·2전방웨이트센서4: Front sensor 4a, 4b: 1st and 2nd front weight sensor

5 : 체형감지콘트롤러 6 : 에어백콘트롤러5: Body type detection controller 6: Airbag controller

본 발명은 차량 시트에 관한 것으로, 보다 상세하게는 차량 시트에 장착되어진 차량 탑승객의 착석 상태 측정 장치에 관한 것이다.The present invention relates to a vehicle seat, and more particularly, to an apparatus for measuring a seating state of a vehicle occupant mounted on a vehicle seat.

일반적으로 차량의 시트는 운전자의 체형에 따라 전후방으로 유동 가능하게 마련되어 있는 것으로, 통상적으로 차체에 고정되는 가이드레일과, 시트하부에 고정설치된 시트레일과, 시트레일의 슬라이딩 이동을 제한하는 작동레버로 구성된 슬라이딩장치를 구비하게 된다.In general, the seat of the vehicle is provided to be able to flow back and forth according to the driver's body, a guide rail fixed to the vehicle body, a seat rail fixed to the lower seat, and an operating lever to limit the sliding movement of the seat rail. It is provided with a sliding device configured.

그러나, 이와 같은 시트는 탑승객의 평균적인 신체 조건만을 전혀 고려해 다양한 신체조건을 갖는 탑승객 특히, 운전자의 경우 시트에 착석시 불편을 초래하게 되고 이로 인해 장시간의 운전시 운전 부주의를 야기할 수 있게 된다.However, such a seat may cause inconvenience to the passengers having various physical conditions in consideration of the average physical condition of the passengers at all, especially in the case of the driver when the seat is seated, which may cause inadvertent driving when driving for a long time.

또한, 이와 같은 시트는 탑승객이 단순히 착석하는 도구로서 만 이용되므로 만약, 차량 충돌시 탑승객이 OOP(Out Of Position)상태에 있는 경우 작동되는 에어백의 전개에 의한 부상을 당할 수도 있게 됨은 물론이다.In addition, such a seat is used only as a tool for the passenger to be seated, so that if the passenger is in an OOP (Out Of Position) state during the vehicle crash, the airbag may be injured by the deployment of the operated airbag.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 시트에 탑승객의 신체조건을 측정해 착석 승객에 적합한 시트 상태와 작동되는 에어백에 의한 탑승객의 부상 야기를 방지함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and an object thereof is to measure the physical condition of the passengers on the seat and to prevent injuries of the passengers due to the airbag operated with the seat state suitable for the seated passenger.

상기와 같은 목적을 달성하기 위한 본 발명은, 시트에 가해지는 탑승객의 하중을 시트의 전방영역 부위에서 감지하도록 시트가 결합된 시트프레임의 전방 영역의 양쪽으로 각각 설치되어진 한 쌍의 제1·2전방웨이트센서와, 상기 시트의 후방영역 부위에서 감지하도록 상기 시트프레임의 후방 영역의 양쪽으로 각각 설치되어진 한 쌍의 제1·2전·후방웨이트센서로 구성된 전·후방센서와;
상기 전·후방센서인 제1·2전·후방웨이트센서로부터 각각 전송된 신호를 통해 시트에 착석한 탑승객으로부터 가해지는 하중의 편중여부를 판단해, 시트에 착석된 승객의 착석 상태에 대한 데이터를 에어백콘트롤러로 전송해 에어백 전개 상태를 제어하기 위해, 상기 제1·2전·후방웨이트센서가 연결되도록 시트프레임 부위에 장착된 체형감지콘트롤러;
로 이루어진 것을 특징으로 한다.In order to achieve the above object, the present invention provides a pair of first and second units respectively provided to both sides of the front region of the seat frame to which the seat is coupled so as to sense the load of the passengers applied to the seat at the front region of the seat. A front and rear sensor composed of a front weight sensor and a pair of first, second and rear weight sensors respectively installed at both sides of the rear region of the seat frame so as to be detected at the rear region of the seat;
The signals transmitted from the first, second, and rear weight sensors, which are the front and rear sensors, respectively, determine whether the load applied to the seated passengers is biased, and the data on the seating status of the passengers seated on the seat is determined. A body type sensing controller mounted on a seat frame portion to be connected to the first and second front and rear weight sensors so as to be transmitted to an air bag controller to control the airbag deployment state;
Characterized in that consisting of.

삭제delete

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 1은 본 발명에 따른 차량 탑승객의 착석 상태 측정 장치의 구성도를 도시한 것인바, 본 발명에 따른 승객의 착석 위치 판단을 위한 측정 장치는 착석할 수 있도록 쿠션이 있는 시트(1)를 이동시키도록 장착하면서 차체 바닥에 고정되는 시트프레임(2)부위에서 시트(1)에 가해지는 압력을 감지할 수 있도록 장착된 센서와, 상기 센서의 신호를 받아 시트(1)의 착석 상태에 따라 가해지는 탑승객의 하중 편중여부를 판단해 착석된 승객의 착석 상태에 대한 데이터를 에어백콘트롤러(6)로 전송하여 에어백 전개 시 전개 상태를 제어하도록 하는 체형감지콘트롤러(5)로 이루어진다.1 is a block diagram of a seating state measurement apparatus for a vehicle occupant according to the present invention, the measuring device for determining the seating position of the passenger according to the present invention moves the seat (1) with a cushion to be seated A sensor mounted to detect the pressure applied to the seat 1 at the seat frame 2 fixed to the bottom of the vehicle body while being mounted so as to be mounted on the seat, and receiving a signal from the sensor according to the seating state of the seat 1 It is composed of a body type sensing controller (5) to determine whether the weight of the occupant of the occupant is transmitted to the airbag controller 6 to transmit data on the seated state of the seated passenger to control the deployment state when the airbag is deployed.

여기서, 상기 센서는 승객이 착석하는 시트(1)의 영역을 전방부위와 후방부위로 나누면서 구분된 전·후 영역에 가해지는 하중을 감지하는 전·후방센서(4,3)로 이루어지되, 상기 전·후방센서(4,3)는 시트(1)의 양 측면 부위에서 시트(1)가 결합된 시트프레임(2)부위로 서로 간격을 두고 각각 위치되어 시트(1)에 착석된 승객이 가하는 하중을 측정하는 한 쌍의 제1·2전·후방웨이트센서(4a,4b,3a,3b)로 이루어지게 된다.Here, the sensor is composed of front and rear sensors (4, 3) for detecting the load applied to the divided front and rear areas while dividing the area of the seat (1) seated by the passenger into the front and rear parts, The front and rear sensors 4 and 3 are positioned at the side of the seat frame 2 to which the seat 1 is coupled at both side portions of the seat 1, and are respectively spaced apart from each other by a passenger seated on the seat 1. It consists of a pair of 1st, 2nd front and rear weight sensors 4a, 4b, 3a, and 3b which measure a load.

또한, 상기 체형감지콘트롤러(5)는 시트(1)의 시트프레임(2)부위 공간에 장착되어 전·후방센서(4,3)를 이루는 제1·2전·후방웨이트센서(4a,4b,3a,3b)로 부터 측정된 센서 신호를 이용해 승객의 탑승 유무를 판단하고 또한, 상기 전·후방센서(4,3)로부터 측정된 신호 크기 차이에 따라 승객의 자세 상태를 판단해 승객의 착석 상태가 에어백과 가까이 있는 정도를 판단해 에어백의 작동 압력이나 전개 속도등을 제어하도록 하는 신호를 발생하는 시트위치센서(Seat Track Position Sensor)의 기능도 함께 하게 된다.
이와 같은, 상기 체형감지콘트롤러(5)는 일반적으로 웨이트 센서의 데이터를 입력받아 착석된 승객의 체형을 판단하는 WCS 콘트롤러(WCS Controller)로서, 본 발명에서는 이러한 일반적인 기능에 착석된 위치의 편중 여부를 판단하도록 즉, 상기 전·후방센서(4,3)인 제1·2전·후방웨이트센서(4a,4b,3a,3b)로 부터 측정된 센서 신호를 이용해 착석한 승객의 시트(1)상 편중 정도를 상기 제1·2전·후방웨이트센서(4a,4b,3a,3b)의 신호에 따라 판단하는 기능을 더 부가한 것이다.In addition, the body type sensing controller (5) is mounted in the space of the seat frame (2) of the seat 1, the first and second front and rear weight sensors (4a, 4b, constituting the front and rear sensors (4, 3), The presence or absence of passengers is determined using the sensor signals measured from 3a and 3b), and the posture state of the passengers is determined based on the difference in the magnitude of the signals measured from the front and rear sensors 4 and 3. It also functions as a seat track position sensor that generates a signal that determines how close the airbag is to the airbag and controls the operating pressure or deployment speed of the airbag.
As such, the body type detection controller 5 is generally a WCS controller (WCS Controller) that determines the body shape of a seated passenger by receiving data from a weight sensor. That is to say, on the seat 1 of the passenger seated using the sensor signals measured from the first and second front and rear weight sensors 4a, 4b, 3a and 3b, which are the front and rear sensors 4 and 3. A function of determining the degree of bias according to the signals of the first and second front and rear weight sensors 4a, 4b, 3a, and 3b is further added.

그리고, 상기 에어백콘트롤러(6, Airbag Control Unit)는 충돌 센서의 신호를 받아 차량에 장착된 에어백의 인플레이트를 점화시키는 신호를 발생하는 장치로서, 이는 상기 인플레이트를 점화 시기 조절을 통해 쿠션의 전개속도와 팽창정도를 제어 즉, 여러 가지 센서로부터 들어오는 신호를 분석하여 충돌 세기의 정도와 시트벨트의 착용 여부나 시트의 위치 및 승객의 크기(무게)에 따라 최적의 승객구속장치를 판단하는 프로그램(Algorithm)이 내장되어 있고, 여러 개의 에어백과 시트벨트를 작동시킬 수 있는 점화회로를 갖고 있다. The airbag control unit 6 is a device that generates a signal for igniting an inflate of an airbag mounted on a vehicle in response to a signal of a collision sensor, which inflates the inflate by adjusting the ignition timing. A program that controls speed and degree of inflation, ie, analyzes signals from various sensors to determine the optimal passenger restraint according to the degree of impact strength, seat belt wear, seat position and passenger size (weight). It has a built-in algorithm and has an ignition circuit that can operate several airbags and seat belts.

이하 본 발명의 작동을 첨부된 도면을 참조로 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 승객이 시트(1)에 착석하게 되면 승객의 체중이 시트(1)에 가하는 압력을 시트프레임(2)부위에 구비된 전·후방센서(4,3)가 측정하게 되고, 이와 같은 전·후방센서(4,3)의 측정 신호를 받은 체형감지콘트롤러(5)가 각 신호의 크기에 따라 시트(1)에 착석된 승객의 체중과 착석 자세를 판단한 후, 에어백콘트롤러(6)가 에어백등과 같은 안전 장치들의 작동 상태 예를 들어, 에어백의 전개 압력이 나 속도등을 체형감지콘트롤러(5)의 데이터를 이용하여 제어하게 된다.According to the present invention, when the passenger is seated on the seat 1, the front and rear sensors 4 and 3 provided on the seat frame 2 measure the pressure that the weight of the passenger exerts on the seat 1. After the body type sensing controller 5, which has received the measurement signals from the front and rear sensors 4 and 3, determines the weight and seating position of the passenger seated on the seat 1 according to the magnitude of each signal, the airbag controller 6 The operating state of safety devices such as airbags, for example, the deployment pressure or speed of the airbag is controlled using the data of the body type sensing controller 5.

즉, 본 발명은 도 2에 도시된 바와 같이 시트(1)에 착석한 승객이 가하는 하중을 시트프레임(2)부위에 구비된 전·후방센서(4,3)의 제1·2전·후방웨이트센서(4a,4b,3a,3b)가 각각 측정해 측정 신호를 발생하게 되면, 상기 제1·2전·후방웨이트센서(4a,4b,3a,3b)의 측정 신호를 체형감지콘트롤러(5)가 비교 분석하게 된다.That is, according to the present invention, as shown in FIG. 2, the first, second, and rear of the front and rear sensors 4 and 3 provided on the seat frame 2 are applied to the load applied by the passenger seated on the seat 1. When the weight sensors 4a, 4b, 3a, and 3b respectively measure and generate a measurement signal, the body type sensing controller 5 measures the measured signals of the first and second front and rear weight sensors 4a, 4b, 3a, and 3b. ) Will be compared and analyzed.

예를 들어, 상기 제1·2전·후방웨이트센서(4a,4b,3a,3b)의 측정 신호중 제1·전·후방웨이트센서(4a,3a)의 신호 크기가 제2전·후방웨이트센서(4b,3b)의 신호 크기보다 크면, 상기 체형감지콘트롤러(5)는 승객이 좌측(도 1에서)으로 기울인 자세로 판단한 신호를 에어백콘트롤러(6)로 전송하게 된다.For example, among the measurement signals of the first and second front and rear weight sensors 4a, 4b, 3a and 3b, the signal magnitudes of the first and rear weight sensors 4a and 3a are the second front and rear weight sensors. If it is larger than the signal size of (4b, 3b), the body type sensing controller (5) transmits to the airbag controller (6) the signal determined by the passenger inclined to the left (in Fig. 1).

또한, 상기 제1·2전방웨이트센서(4a,4b)의 신호 크기가 제1·2후방웨이트센서(3a,3b)의 신호 크기보다 크면, 상기 체형감지콘트롤러(5)는 승객이 앞쪽으로(도 1에서) 기울인 자세로 판단한 신호를 에어백콘트롤러(6)로 전송하게 된다.In addition, when the signal magnitude of the first and second front weight sensors 4a and 4b is greater than the signal magnitude of the first and second rear weight sensors 3a and 3b, the body type sensing controller 5 has a passenger facing forward ( In FIG. 1), the signal determined in the inclined position is transmitted to the airbag controller 6.

이와 같이, 상기 체형감지콘트롤러(5)가 전·후방센서(4,3)를 통해 판단된 정보를 에어백콘트롤러(6)로 전송하면, 차량 충돌시 상기 에어백콘트롤러(6)는 착석된 승객의 자세를 고려해 승객의 2차 부상 즉, 에어백의 작동시 승객의 자세에 따른 부상을 방지하도록 에어백의 전개 압력이나 속도등을 제어하게 된다.As such, when the body type sensing controller 5 transmits the information determined through the front and rear sensors 4 and 3 to the airbag controller 6, the airbag controller 6 may posture of a seated passenger when the vehicle crashes. Considering this, the airbag's deployment pressure or speed is controlled to prevent secondary injuries of the passenger, that is, injuries according to the posture of the passenger during the operation of the airbag.

이상 설명한 바와 같이 본 발명에 의하면, 승객의 착석 자세를 승객이 시트에 가하는 하중의 편중 정도로 판단하여 에어백의 작동시 에어백 전개 압력등을 제 어하게 되므로, 에어백 전개시 승객의 OOP시에도 2차적인 승객 부상을 방지 할 수 있는 효과가 있게 된다.As described above, according to the present invention, since the seating posture of the passenger is judged as the degree of bias of the load applied to the seat, the airbag deployment pressure and the like are controlled during operation of the airbag. It is effective to prevent passenger injuries.

또한, 본 발명은 승객의 착석 자세를 승객이 시트에 가하는 하중의 편중으로 판단하게 되므로 별도의 시트위치센서를 사용하지 않아 저렴한 비용으로 동일한 기능을 수행 할 수 있는 효과가 있음은 물론이다.In addition, since the present invention determines the seating position of the passenger as the bias of the load applied to the seat, it is a matter of course that the same function can be performed at a low cost without using a separate seat position sensor.

Claims (1)

시트(1)에 가해지는 탑승객의 하중을 시트(1)의 전방영역 부위에서 감지하도록 시트(1)가 결합된 시트프레임(2)의 전방 영역의 양쪽으로 각각 설치되어진 한 쌍의 제1·2전방웨이트센서(4a,4b)와, 상기 시트(1)의 후방영역 부위에서 감지하도록 상기 시트프레임(2)의 후방 영역의 양쪽으로 각각 설치되어진 한 쌍의 제1·2전·후방웨이트센서(3a,3b)로 구성된 전·후방센서(4,3)와;A pair of first and second units respectively provided on both sides of the front region of the seat frame 2 to which the seat 1 is coupled so as to sense the load of the passengers applied to the seat 1 at the front region portion of the seat 1. A pair of first, second and rear weight sensors respectively provided on both of the front weight sensors 4a and 4b and the rear region of the seat frame 2 so as to be detected at the rear region of the seat 1 ( Front and rear sensors 4 and 3 composed of 3a and 3b); 상기 전·후방센서(4,3)인 제1·2전·후방웨이트센서(4a,4b,3a,3b)로부터 각각 전송된 신호를 통해 시트(1)에 착석한 탑승객으로부터 가해지는 하중의 편중여부를 판단해, 시트(1)에 착석된 승객의 착석 상태에 대한 데이터를 에어백콘트롤러(6)로 전송해 에어백 전개 상태를 제어하기 위해, 상기 제1·2전·후방웨이트센서(4a,4b,3a,3b)가 연결되도록 시트프레임(2) 부위에 장착된 체형감지콘트롤러(5);The bias of the load applied from the passengers seated on the seat 1 through signals transmitted from the first and second front and rear weight sensors 4a, 4b, 3a and 3b, which are the front and rear sensors 4 and 3, respectively. The first and second front and rear weight sensors 4a and 4b for determining whether or not to transmit data on the seating status of the passenger seated on the seat 1 to the airbag controller 6 to control the airbag deployment state. Body detection controller (5) mounted on the seat frame (2) portion so that, 3a, 3b is connected; 로 이루어진 차량 탑승객의 착석 상태 측정 장치.Seating state measurement device of the vehicle occupant consisting of.
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