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KR101405379B1 - Vehicle passenger type sensing device - Google Patents

Vehicle passenger type sensing device Download PDF

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Publication number
KR101405379B1
KR101405379B1 KR1020070093495A KR20070093495A KR101405379B1 KR 101405379 B1 KR101405379 B1 KR 101405379B1 KR 1020070093495 A KR1020070093495 A KR 1020070093495A KR 20070093495 A KR20070093495 A KR 20070093495A KR 101405379 B1 KR101405379 B1 KR 101405379B1
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South Korea
Prior art keywords
passenger
seat
load cell
type sensing
vehicle
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KR20090028148A (en
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박병혁
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현대모비스 주식회사
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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
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/40—Force or pressure sensors

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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)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Air Bags (AREA)

Abstract

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 vehicle passenger type sensing apparatus according to the present invention can distinguish the type of passenger by measuring the change in the tension of the seat spring which changes according to the load of the passenger by mounting the load cell on the seat spring provided on the seat frame, The number of components is reduced, and an expensive sensor is not used, so that the cost can be reduced.

승객, 유형, 감지, 시트, 스프링, 로드셀 Passenger, type, sensing, seat, spring, load cell

Description

차량용 승객유형 감지장치{Sensing apparatus of passenger type for automobile}TECHNICAL FIELD [0001] The present invention relates to a passenger-

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. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle passenger type sensing apparatus, and more particularly, to a seat passenger type sensing apparatus for a vehicle, To a vehicle passenger type sensing apparatus which can be simple in structure and can be cost-reduced.

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. Generally, when a collision or rollover accident is detected in a vehicle, an airbag module is provided which is deployed toward a passenger seated on the seat of the vehicle to mitigate the impact of the passenger. In addition, a passenger type sensing device is provided to determine the position of the passenger or the type of passenger so that the airbag can be deployed optimally according to the position of the passenger and the body 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 sensing apparatus is classified into a system using a pressure sensor to sense the weight of a passenger and a pelvis pattern, and a system using a strain sensor having a variable resistor to sense the weight of a passenger.

도 1은 종래 기술에 따른 차량용 승객유형 감지장치가 장착된 시트가 도시된 사시도이다. 1 is a perspective view showing a seat on which a vehicle passenger type sensing device according to the prior art is mounted.

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. As shown in FIG. 1, the conventional passenger-type sensing device for a vehicle includes a seat 2 installed in a vehicle compartment to seat the passenger, And a control unit (not shown) for receiving the signal from the passenger sensing unit and analyzing the passenger's boarding position and body shape to distinguish the passenger.

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 car and a seatback 6 arranged vertically to the seat cushion 4. [

상기 승객감지부는 상기 시트 쿠션(4)내에 설치되고 다수의 압력센서가 소정의 행렬로 배열된 센서 매트(10)이다. The passenger sensing portion is a sensor mat (10) installed in the seat cushion (4) and having a plurality of pressure sensors 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. In the sensor mat 10, 30 to 40 pressure sensors are arranged to sense the weight of a 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 apparatus for a vehicle according to the related art requires a large number of expensive pressure sensors, which results in a large manufacturing cost.

본 발명은 제작 비용이 절감될 수 있는 차량용 승객유형 감지장치를 제공하는데 그 목적이 있다.An object of the present invention is to provide a vehicle passenger type sensing apparatus which can reduce manufacturing costs.

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.The present invention relates to an elastic member which is provided in a seat frame and is formed to have a buffering action, a load cell which is coupled to the elastic member and senses a change in tension of the elastic member which changes according to a load of a passenger, And a control unit for classifying the type of the passenger.

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 arranged to traverse the seat frame in the front, rear, 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 of load cells, and the plurality of load cells may be electrically connected to the control unit.

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 vehicle passenger type sensing apparatus according to the present invention can distinguish the type of passenger by measuring the change in the tension of the seat spring which changes according to the load of the passenger by mounting the load cell on the seat spring provided on the seat frame, The number of components is reduced and an expensive sensor is not used, so that the cost can be reduced

이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하면 다음과 같다. Hereinafter, 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.FIG. 2 is a perspective view of a seat frame provided with a vehicle passenger type sensing apparatus according to an embodiment of the present invention, FIG. 3 is a perspective view of the load cell shown in FIG. 2, Fig. 5 is a configuration diagram illustrating a passenger type sensing device in a state in which a load of a passenger is applied. Fig.

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, the passenger-type sensing apparatus for a vehicle according to the embodiment of the present invention includes an elastic member provided on a seat frame 50 and adapted to perform a damping action, A load cell 60 installed to detect a change in the tension of the elastic member which varies according to the load of the passenger and a control unit 70 for classifying the type of passenger according to the value sensed 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 supports the seat cushion (not shown), and is installed in the vehicle so that the seat cushion (not shown) can be moved 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 so as to traverse the seat frame (50) in the front, rear, left and right directions. Here, the seat spring 52 is limited to being disposed long in the front-rear direction on the seat frame 50.

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. 하나의 로드셀(60) 양측에 상기 시트 스프링(52)이 고정되어 상기 시트 스프링(52)의 장력 변화에 따른 감지된 값을 상기 로드셀(60)에서 상기 제어부로 전송된 신호에 따라 승객의 유형을 구분한다.The load cell (60) is mounted on the seat frame (52). 2, two load cells 60 are provided, and the two seat springs 52 may be fixed to one load cell 60. As shown in FIG. The seat spring 52 is fixed to both sides of one load cell 60 so that the sensed value according to the tension change of the seat spring 52 can be detected by the type of the passenger according to the signal transmitted from the load cell 60 to the control unit It is classified.

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 harness 62.

상기와 같이 구성된 본 발명의 실시예에 따른 차량용 승객유형 감지장치의 작동을 살펴보면 다음과 같다. The operation of the vehicle passenger type sensing apparatus according to the embodiment of the present invention will now be described.

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 Fig. 4, when the passenger does not sit on the seat of the vehicle, the tension of the seat spring 52 does not change.

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 the seat of the vehicle and a load is applied to the seat spring 52, the seat spring 52 is sagged downward. That is, the tension of the seat spring 52 is increased by a 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 senses a change in the tension of the seat spring 52, and transmits the sensed result to the controller 70.

상기 제어부(70)에서는 상기 로드셀(60)로부터 전송된 신호에 따라 승객의 유형을 구분할 수 있게 된다. The control unit 70 can distinguish the type of the 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 vehicle passenger type sensing apparatus according to the present invention can distinguish the type of passenger by measuring the change in the tension of the seat spring which changes according to the load of the passenger by mounting the load cell on the seat spring provided on the seat frame, The number of components is reduced, and an expensive sensor is not used, so that 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 on which a vehicle passenger type sensing apparatus according to the prior art is mounted,

도 2는 본 발명의 실시예에 따른 차량용 승객유형감지장치가 구비된 시트 프레임의 사시도이고,2 is a perspective view of a seat frame provided with a vehicle passenger type sensing apparatus 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. 2,

도 4는 도 2에 도시된 승객유형감지장치가 개략적으로 도시된 구성도이고,Fig. 4 is a schematic diagram of the passenger type sensing apparatus shown in Fig. 2,

도 5는 승객의 하중이 가해진 상태의 승객유형감지장치가 도시된 구성도이다.5 is a configuration diagram showing a passenger type sensing device in a state in which a load of a passenger is applied.

<도면의 주요 부분에 관한 부호의 간단한 설명>BRIEF DESCRIPTION OF THE DRAWINGS Fig.

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

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

70: 제어부70:

Claims (4)

시트 프레임;Sheet frame; 완충작용을 하도록 상기 시트 프레임에 구비된 시트스프링; 및A seat spring provided on the seat frame to perform a buffering action; And 승객의 하중에 따라 변하는 상기 시트스프링의 장력변화를 감지하도록 구비되는 로드셀;를 포함하고,And a load cell provided to detect a change in the tension of the seat spring varying with the load of the passenger, 상기 로드셀은,In the load cell, 복수개로 상기 시트 프레임에 장착되고,A plurality of said seat frames are mounted on said seat frame, 하나의 로드셀 양측에 상기 시트 스프링이 고정되어 상기 시트 스프링의 장력 변화에 따른 감지된 값을 상기 로드셀에서 제어부로 전송된 신호에 따라 승객의 유형을 구분하는 차량용 승객유형 감지장치.Wherein the seat spring is fixed to both sides of one load cell so as to classify the type of the passenger according to a signal transmitted from the load cell to the control unit in response to a change in the tension of the seat spring. 삭제delete 삭제delete 삭제delete
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11618403B2 (en) 2021-03-12 2023-04-04 Hyundai Motor Company Vehicle seat cushion airbag, control system and control method thereof

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2001180353A (en) 1999-12-27 2001-07-03 Nhk Spring Co Ltd Vehicle seat occupancy sensing device
JP2003127740A (en) 2001-10-23 2003-05-08 T S Tec Kk Sitting posture measuring device of vehicle seat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001180353A (en) 1999-12-27 2001-07-03 Nhk Spring Co Ltd Vehicle seat occupancy sensing device
JP2003127740A (en) 2001-10-23 2003-05-08 T S Tec Kk Sitting posture measuring device of vehicle seat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11618403B2 (en) 2021-03-12 2023-04-04 Hyundai Motor Company Vehicle seat cushion airbag, control system and control method thereof

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