• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to an airbag operation system, and a weight sensor in a longitudinal direction is installed in a seat back and a seat cushion of a car seat, and a seat footrest, respectively, and detects a pressure signal pattern applied to the weight sensor, The posture and the sitting height are determined, and when the airbag is operated, the airbag inflation gas amount control valve driving signal and the airbag inflator ignition timer setting signal corresponding to the sitting posture and the sitting key are supplied to adjust the inflated speed and pressure of the airbag. According to the present invention, when the airbag is operated, there is an outstanding effect of preventing injuries caused by the airbag inflation for passengers having a unstable posture such as children or the elderly.
    公开号:KR19980057845A
    申请号:KR1019960077148
    申请日:1996-12-30
    公开日:1998-09-25
    发明作者:윤성문
    申请人:박병재；현대자동차 주식회사；
    IPC主号:
    专利说明:

    Airbag operating system
    The present invention relates to an airbag operating system, and more particularly, to an airbag operating system for sensing an occupant's sitting position and operating the airbag according to the occupant's posture in the event of a crash of a vehicle.
    In general, airbags are installed on the front or door sides of the driver's and front passenger's seats and function as vehicle assist safety devices to protect the driver or passenger in the event of a frontal collision as well as a frontal collision. Conventional airbag devices typically operate so as to evacuate the airbag immediately after inflating the airbag by igniting the inflator in the airbag module in the airbag diagnostic unit after collision detection from the left and right front impact sensors.
    Recently, reports of human body damage caused by an explosion of an airbag during a vehicle crash have been statistically known, which is against the purpose of protecting the body of an airbag, and countermeasures are urgently needed.
    The present invention is to inflate the airbag according to the position of the person sitting in order to prevent the airbag from hitting the face of the person by sudden inflation with a strong pressure in the event of a crash of the vehicle to prevent injury or choking on the eyes or mouth. It is to control the speed and pressure properly.
    Accordingly, it is an object of the present invention to provide an airbag inflation control device for preventing a child or an elderly person from injury from an inflation shock of an airbag during a vehicle crash.
    According to the present invention, the weight sensor is installed in the longitudinal direction of the seat back and the seat cushion of the car seat and the bottom of the seat footrest, respectively, and the pressure signal pattern applied to the weight sensor is detected to adjust the sitting posture and the sitting height of the person. An airbag operating system is provided for judging and supplying an airbag inflation gas amount control valve driving signal and an airbag inflator ignition timer setting signal corresponding to the sitting posture and sitting height to adjust the inflated speed and pressure of the airbag.
    In a preferred embodiment of the present invention, the weight sensor is composed of a plurality of piezo sensor arrays in matrix form embedded in a size corresponding to the area of the seat and the footrest.
    According to the present invention, the airbag diagnosis unit detects an output voltage of each sensor in a matrix-type piezo sensor array embedded in the seat and the footboard to determine a sitting posture pattern of the occupant.
    1 is a schematic diagram showing an installation state of a passenger posture detection apparatus applied to the present invention.
    2 is a block diagram of an airbag operating system according to the present invention.
    Explanation of symbols for main parts of the drawings
    3: occupant posture detection device 5: seat back weight sensor
    7: Seat cushion weight sensor 9: Foot position sensor
    10 airbag diagnosis unit 21 airbag expansion gas control valve
    23: Airbag Inflator Ignition Timer
    An embodiment of the present invention will be described in detail with reference to the accompanying drawings so that the objects, features, and advantages of the present invention can be easily understood.
    Referring to Fig. 1, an airbag actuation system according to the present invention is shown. In the seat back and seat cushion of the car seat and the bottom of the seat footrest, respectively, the weight sensors 5, 7, 9 are installed in the longitudinal direction, and an inflation gas amount control valve and an ignition timer are respectively installed in the airbag inflator. The signal outputs of the weight sensors 5, 7, 9 are connected to the input of the airbag diagnosis unit 10 and the actuator of the expansion gas amount control valve and the ignition timer is connected to the output end of the airbag diagnosis unit 10.
    The weight sensors 5, 7, 9 are embedded close to the surface in sizes corresponding to the area of the seat and the footrest, respectively. In addition, the weight sensor (5, 7, 9) is configured in the form of a matrix type sensor array using a plurality of piezoelectric sensors.
    In the airbag operating system of the above configuration, the airbag diagnostic unit 10 determines the sitting posture pattern of the occupant by detecting the output voltage of each sensor in the piezo sensor array of the matrix type embedded in the seat and the footrest.
    That is, when the foot is placed on the footrest 8, the weight sensor 9 detects the output voltage due to the pressure to detect the position where the foot is placed, and the weight sensors 5 and 7 mounted on the seat back and the seat cushion. Analyzes the weight pattern applied to the seat to estimate the seated position of the passenger as a whole.
    The inflation gas amount regulating valve 21 of the airbag inflator corresponding to the pattern at the output end of the airbag diagnosis unit 10 during the airbag operation according to the sitting posture and the sitting key pattern of the person detected by the weight sensors 5, 7, 9 The driving signal and the ignition timer 23 generate a driving signal, thereby adjusting the opening amount of the expansion gas amount control valve supplied from the inflator to the airbag, and delaying the ignition time to a predetermined time by the ignition timer 23 to inflate the airbag. Losing speed and pressure will be controlled.
    As described above, according to the present invention, by detecting the sitting posture pattern of the person from the weight sensor installed in the seat and thereby appropriately adjusting the inflation speed and pressure of the airbag, injuries caused by inflation of the airbag to a child or the elderly during airbag operation There is an exceptional effect that can prevent.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] The weight sensor is installed in the seat back and the seat cushion of the car seat in the longitudinal direction, respectively, and the pressure signal pattern applied to the weight sensor is detected to determine the sitting position and the sitting height of the person, and the airbag is operated. And an airbag inflation gas amount control valve driving signal and an airbag inflator ignition timer setting signal corresponding to the sitting posture and the sitting height to adjust the inflated speed and pressure of the airbag.
    [2" claim-type="Currently amended] According to claim 1, wherein the weight sensors (5, 7, 9) are respectively built close to the surface in a size corresponding to the area of the seat and the footrest, the weight sensor (5, 7, 9) is a plurality of piezoelectric sensors Air bag operating system, characterized in that configured in the form of a matrix-type sensor array using.
    类似技术:
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-30|Application filed by 박병재, 현대자동차 주식회사
    1996-12-30|Priority to KR1019960077148A
    1998-09-25|Publication of KR19980057845A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960077148A|KR19980057845A|1996-12-30|1996-12-30|Airbag operating system|
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