KR20090028148A - Sensing apparatus of passenger type for automobile - Google Patents

Sensing apparatus of passenger type for automobile Download PDF

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Publication number
KR20090028148A
KR20090028148A KR1020070093495A KR20070093495A KR20090028148A KR 20090028148 A KR20090028148 A KR 20090028148A KR 1020070093495 A KR1020070093495 A KR 1020070093495A KR 20070093495 A KR20070093495 A KR 20070093495A KR 20090028148 A KR20090028148 A KR 20090028148A
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South Korea
Prior art keywords
passenger
seat
load cell
load
elastic member
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KR1020070093495A
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Korean (ko)
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KR101405379B1 (en
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박병혁
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현대모비스 주식회사
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Priority to KR1020070093495A priority Critical patent/KR101405379B1/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
    • B60R21/015—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
    • 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
    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
    • G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • General Physics & Mathematics (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

A device for detecting a type of passenger is provided to classify the type of passenger y measuring the tension change of a leaf spring depending on load of passenger. A device for detecting a type of passenger comprises: an elastic member which is installed in a seat frame(50) and absorbing the shock; a load cell(60) which is combined in the elastic member, and reading the tension of the elastic member changing according to the load of passenger; and a controller(70) classifying the type of passenger according to a value sensed with the load cell.

Description

차량용 승객유형 감지장치{Sensing apparatus of passenger type for automobile}Sensing apparatus of passenger type for automobile}

본 발명은 차량용 승객유형 감지장치에 관한 것으로서, 보다 상세하게는 시트 프레임에 구비된 시트 스프링에 로드셀을 장착하여, 승객의 하중에 따라 변화하는 시트 스프링의 장력변화를 측정하여 승객의 유형을 구분함으로써 구조가 간단하고 비용이 절감될 수 있는 차량용 승객유형 감지장치에 관한 것이다. The present invention relates to a passenger type sensing device for a vehicle, and more particularly, by mounting a load cell on a seat spring provided in a seat frame, by measuring the tension change of the seat spring that changes according to the load of the passenger, The present invention relates to a passenger type sensing device for a vehicle having a simple structure and a cost reduction.

일반적으로 차량에는 충돌 또는 전복사고가 감지되면, 에어백이 차량의 시트에 착석한 승객을 향해 전개되어 승객의 충격을 완화시키는 에어백 모듈이 구비된다. 아울러, 상기 에어백이 승객의 위치 및 승객의 체구 등에 따라 최적의 상태로 전개될 수 있도록 승객의 위치 또는 승객의 유형을 판단하는 승객유형 감지장치가 구비된다. In general, the vehicle is provided with an airbag module that detects a collision or rollover, the airbag is deployed toward the passenger seated on the seat of the vehicle to mitigate the impact of the passenger. In addition, a passenger type detection device is provided that determines the location of the passenger or the type of the passenger so that the airbag can be deployed in an optimal state according to the location of the passenger and the size of the passenger.

상기 승객유형 감지장치는 탑승자의 중량 및 골반 패턴을 감지하도록 압력센서를 이용하는 방식과, 탑승자의 무게를 감지하도록 가변저항을 갖는 스트레인 게 이지 센서를 이용한 방식으로 구분된다. The passenger type detection device is divided into a method using a pressure sensor to detect the weight and pelvis pattern of the occupant, and a strain gauge sensor having a variable resistance to detect the weight of the occupant.

도 1은 종래 기술에 따른 차량용 승객유형 감지장치가 장착된 시트가 도시된 사시도이다. 1 is a perspective view showing a seat equipped with a passenger type detection device for a vehicle according to the prior art.

종래 기술에 따른 차량용 승객유형 감지장치는 도 1에 도시된 바와 같이, 차실에 설치되어 승객을 앉을 수 있도록 형성된 시트(2)와, 상기 시트(2)의 내부에 설치되어 승객을 감지하는 승객감지부와, 상기 승객감지부로부터 출력된 신호를 받아 승객의 탑승위치 및 체형을 분석하여 승객을 구분하는 제어부(미도시)를 포함하여 구성된다. The passenger type detecting device for a vehicle according to the related art is provided with a seat (2) formed in a vehicle cabin and seated in a passenger compartment, as shown in FIG. And a control unit (not shown) for distinguishing passengers by analyzing a boarding position and a body shape of a passenger in response to a signal output from the passenger detecting unit.

상기 시트(2)는 차실의 플로워 패널에 장착된 시트 쿠션(4)과, 상기 시트 쿠션(4)에 수직으로 배치된 시트백(6)으로 구성된다.The seat 2 is composed of a seat cushion 4 mounted on a floor panel of a vehicle compartment, and a seatback 6 disposed perpendicular to the seat cushion 4.

상기 승객감지부는 상기 시트 쿠션(4)내에 설치되고 다수의 압력센서가 소정의 행렬로 배열된 센서 매트(10)이다. The passenger detecting unit is a sensor mat 10 installed in the seat cushion 4 and in which a plurality of pressure sensors are arranged in a predetermined matrix.

상기 센서 매트(10)내에는 상기 압력센서가 30~40개가 배열되어, 상기 시트 쿠션(4)에 착석한 승객의 중량 및 착좌시의 압력분포를 감지하게 된다. 30 to 40 pressure sensors are arranged in the sensor mat 10 to detect the weight of the passenger seated on the seat cushion 4 and the pressure distribution at the time of seating.

그러나, 종래 기술에 따른 차량용 승객유형 감지장치는 고가인 압력 센서가 다수개가 필요하므로, 제작 비용이 많이 소모되는 문제점이 있다. However, the passenger type sensing device for a vehicle according to the prior art requires a large number of expensive pressure sensors, and thus there is a problem in that manufacturing cost is consumed.

본 발명은 제작 비용이 절감될 수 있는 차량용 승객유형 감지장치를 제공하는데 그 목적이 있다.It is an object of the present invention to provide a passenger type sensing device for a vehicle which can reduce the production cost.

본 발명은 시트 프레임에 구비되어 완충작용을 하도록 형성된 탄성부재와, 상기 탄성부재에 결합되어, 승객의 하중에 따라 변하는 상기 탄성부재의 장력변화를 감지하는 로드셀과, 상기 로드셀에서 감지된 값에 따라 승객의 유형을 구분하는 제어부를 포함하는 차량용 승객유형 감지장치를 제공한다.According to the present invention, an elastic member provided in a seat frame and configured to perform a buffering action, a load cell coupled to the elastic member, and detecting a tension change of the elastic member that changes according to a load of a passenger, according to a value detected by the load cell Provided is a passenger type sensing device for a vehicle including a control unit for classifying passenger types.

상기 탄성부재는 상기 시트 프레임을 전후 또는 좌우방향으로 가로지르도록 배치된 복수개의 시트 스프링을 포함할 수 있다.The elastic member may include a plurality of seat springs disposed to cross the seat frame in the front and rear or left and right directions.

상기 복수개의 시트 스프링의 일단은 상기 시트 프레임에 고정되고, 타단은 상기 로드셀에 고정된 것을 포함할 수 있다.One end of the plurality of seat springs may be fixed to the seat frame and the other end may be fixed to the load cell.

상기 로드셀은 복수개가 구비되고, 상기 복수개의 로드셀은 상기 제어부에 전기적으로 연결된 것을 포함할 수 있다. The load cell may include a plurality, and the plurality of load cells may be electrically connected to the controller.

본 발명에 따른 차량용 승객유형 감지장치는 시트 프레임에 구비된 시트 스프링에 로드셀을 장착함으로써, 승객의 하중에 따라 변화하는 시트 스프링의 장력 변화를 측정하여 승객의 유형을 구분할 수 있기 때문에, 구조가 간단하고 부품수가 감소되며 고가의 센서가 사용되지 않으므로, 비용이 절감될 수 있는 효과가 있다The passenger type detection device for a vehicle according to the present invention is simple because the load cell is mounted on the seat spring provided in the seat frame to distinguish the type of the passenger by measuring the tension change of the seat spring that changes according to the load of the passenger. And since the number of parts is reduced and expensive sensors are not used, the cost can be reduced.

이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하면 다음과 같다. Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명의 실시예에 따른 차량용 승객유형감지장치가 구비된 시트 프레임의 사시도이고, 도 3은 도 2에 도시된 로드셀의 사시도이며, 도 4는 도 2에 도시된 승객유형감지장치가 개략적으로 도시된 구성도이고, 도 5는 승객의 하중이 가해진 상태의 승객유형감지장치가 도시된 구성도이다.2 is a perspective view of a seat frame provided with a passenger type detecting device for a vehicle according to an embodiment of the present invention, Figure 3 is a perspective view of the load cell shown in Figure 2, Figure 4 is a passenger type detecting device shown in FIG. FIG. 5 is a configuration diagram schematically showing, and FIG. 5 is a configuration diagram illustrating a passenger type detection device in a state where a passenger load is applied thereto.

본 발명의 실시예에 따른 차량용 승객유형감지장치는 도 2에 도시된 바와 같이, 시트 프레임(50)에 구비되어 완충작용을 하도록 형성된 탄성부재와, 상기 탄성부재와 상기 시트 프레임(50)사이에 설치되어, 승객의 하중에 따라 변하는 상기 탄성부재의 장력변화를 감지하는 로드셀(60)과, 상기 로드셀(60)에서 감지된 값에 따라 승객의 유형을 구분하는 제어부(70)를 포함한다.As shown in FIG. 2, a passenger type sensing device for a vehicle according to an exemplary embodiment of the present invention includes an elastic member provided in the seat frame 50 to form a buffering action, and between the elastic member and the seat frame 50. It is installed, and includes a load cell 60 for detecting the tension change of the elastic member changes in accordance with the load of the passenger, and a control unit 70 for classifying the type of passenger according to the value detected by the load cell (60).

상기 시트프레임(50)은 상기 시트쿠션(미도시)을 지지하는 역할을 함과 아울러, 상기 시트쿠션(미도시)이 전후방향으로 이동가능하도록 차실에 설치된다. The seat frame 50 serves to support the seat cushion (not shown), and is installed in the vehicle compartment such that the seat cushion (not shown) is movable in the front-rear direction.

상기 탄성부재는 상기 시트 프레임(50)을 전후 또는 좌우방향으로 가로지르도록 배치된 복수개의 시트 스프링(52)이다. 여기서, 상기 시트 스프링(52)은 상기 시트 프레임(50)에 전후방향으로 길게 배치된 것으로 한정하여 설명한다. The elastic member is a plurality of seat springs 52 arranged to cross the seat frame 50 in the front and rear or left and right directions. Here, the seat spring 52 is limited to the one arranged in the front and rear direction in the seat frame 50 will be described.

상기 시트 스프링(52)의 일단은 상기 시트 프레임(50)에 고정되고, 타단은 상기 로드셀(60)에 고정된다. One end of the seat spring 52 is fixed to the seat frame 50, and the other end is fixed to the load cell 60.

상기 로드셀(60)은 상기 시트 프레임(52)에 장착된다. 도 2를 참조하면, 상기 로드셀(60)은 2개가 구비되고, 하나의 로드셀(60)에 상기 시트 스프링(52)이 2개씩 고정될 수 있다. The load cell 60 is mounted to the seat frame 52. Referring to FIG. 2, two load cells 60 may be provided, and two seat springs 52 may be fixed to one load cell 60.

상기 2개의 로드셀(60)은 와이어 하니(62)에 의해 상기 제어부(70)에 전기적으로 연결될 수 있다. The two load cells 60 may be electrically connected to the control unit 70 by a wire honey 62.

상기와 같이 구성된 본 발명의 실시예에 따른 차량용 승객유형 감지장치의 작동을 살펴보면 다음과 같다. Looking at the operation of the vehicle passenger type detection apparatus according to an embodiment of the present invention configured as described above are as follows.

먼저, 도 4에 도시된 바와 같이, 차량의 시트에 승객이 앉지 않은 경우, 상기 시트 스프링(52)의 장력 변화는 없는 상태이다. First, as shown in Figure 4, when the passenger does not sit on the seat of the vehicle, there is no tension change of the seat spring (52).

이후, 도 5에 도시된 바와 같이, 차량의 시트에 승객이 앉게 되어 상기 시트 스프링(52)에 하중이 가해지면, 상기 시트 스프링(52)이 하측으로 처지게 된다. 즉, 상기 시트 스프링(52)에 인가된 하중만큼 상기 시트 스프링(52)의 장력은 증가하게 된다. Thereafter, as shown in FIG. 5, when a passenger sits on a seat of the vehicle and a load is applied to the seat spring 52, the seat spring 52 sags downward. That is, the tension of the seat spring 52 is increased by the load applied to the seat spring 52.

이 때, 상기 로드셀(60)은 상기 시트 스프링(52)의 장력 변화를 감지하게 되고, 감지된 결과값을 상기 제어부(70)로 전송하게 된다. At this time, the load cell 60 detects the tension change of the seat spring 52, and transmits the detected result value to the control unit 70.

상기 제어부(70)에서는 상기 로드셀(60)로부터 전송된 신호에 따라 승객의 유형을 구분할 수 있게 된다. The controller 70 can distinguish the type of passenger according to the signal transmitted from the load cell 60.

본 발명에 따른 차량용 승객유형 감지장치는 시트 프레임에 구비된 시트 스프링에 로드셀을 장착함으로써, 승객의 하중에 따라 변화하는 시트 스프링의 장력변화를 측정하여 승객의 유형을 구분할 수 있기 때문에, 구조가 간단하고 부품수가 감소되며 고가의 센서가 사용되지 않으므로, 비용이 절감될 수 있는 효과가 있다. The passenger type detecting device for a vehicle according to the present invention has a load cell mounted on a seat spring provided in a seat frame, so that the structure of the passenger can be distinguished by measuring the tension change of the seat spring that changes according to the load of the passenger. And since the number of parts is reduced and expensive sensors are not used, the cost can be reduced.

도 1은 종래 기술에 따른 차량용 승객유형 감지장치가 장착된 시트가 도시된 사시도이고, 1 is a perspective view showing a seat equipped with a passenger type detection device for a vehicle according to the prior art,

도 2는 본 발명의 실시예에 따른 차량용 승객유형감지장치가 구비된 시트 프레임의 사시도이고,Figure 2 is a perspective view of a seat frame with a passenger type detection device for a vehicle according to an embodiment of the present invention,

도 3은 도 2에 도시된 로드셀의 사시도이며,3 is a perspective view of the load cell shown in FIG.

도 4는 도 2에 도시된 승객유형감지장치가 개략적으로 도시된 구성도이고,4 is a configuration diagram schematically showing the passenger type detection device shown in FIG.

도 5는 승객의 하중이 가해진 상태의 승객유형감지장치가 도시된 구성도이다.5 is a block diagram illustrating a passenger type detection device in a state where a load of a passenger is applied.

<도면의 주요 부분에 관한 부호의 간단한 설명><Simple description of the code for the main part of the drawing>

50: 시트 프레임 52: 시트 스프링50: seat frame 52: seat spring

60: 로드셀 62: 와이어 하니60: load cell 62: wire

70: 제어부70: control unit

Claims (4)

시트 프레임에 구비되어 완충작용을 하도록 형성된 탄성부재와;An elastic member provided in the seat frame and configured to perform a buffering action; 상기 탄성부재에 결합되어, 승객의 하중에 따라 변하는 상기 탄성부재의 장력변화를 감지하는 로드셀과;A load cell coupled to the elastic member to sense a tension change of the elastic member that changes according to a load of a passenger; 상기 로드셀에서 감지된 값에 따라 승객의 유형을 구분하는 제어부를 포함하는 차량용 승객유형 감지장치.Passenger type detection device for a vehicle comprising a control unit for classifying a passenger type according to the value detected by the load cell. 청구항 1에 있어서, The method according to claim 1, 상기 탄성부재는 상기 시트 프레임을 전후 또는 좌우방향으로 가로지르도록 배치된 복수개의 시트 스프링을 포함하는 차량용 승객유형 감지장치.The elastic member is a passenger type sensing device for a vehicle comprising a plurality of seat springs arranged to cross the seat frame in the front and rear or left and right directions. 청구항 2에 있어서, The method according to claim 2, 상기 복수개의 시트 스프링의 일단은 상기 시트 프레임에 고정되고, 타단은 상기 로드셀에 고정된 것을 포함하는 차량용 승객유형 감지장치. One end of the plurality of seat spring is fixed to the seat frame, the other end is a passenger type detection device for a vehicle comprising a fixed to the load cell. 청구항 2에 있어서,The method according to claim 2, 상기 로드셀은 복수개가 구비되고, 상기 복수개의 로드셀은 상기 제어부에 전기적으로 연결된 것을 포함하는 차량용 승객유형 감지장치. The load cell is provided with a plurality, the plurality of load cells is a passenger type detection device for a vehicle comprising the electrically connected to the controller.
KR1020070093495A 2007-09-14 2007-09-14 Sensing apparatus of passenger type for automobile KR101405379B1 (en)

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JP3735679B2 (en) 1999-12-27 2006-01-18 日本発条株式会社 Seat detection device for automobile seats
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