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    Bladder and support structure for occupant weight estimation
    1.
    发明授权
    Bladder and support structure for occupant weight estimation 有权
    膀胱和支撑结构为乘员体重估计

    公开(公告)号：US06490936B1

    公开(公告)日：2002-12-10

    申请号：US09311576

    申请日：1999-05-14

    申请人： Duane Donald Fortune ,  Morgan Daniel Murphy ,  Robert Joseph Myers ,  Pamela Ann Roe ,  Phillip E Kaltenbacher, II ,  Stuart Stites Sullivan ,  Gregory Allen Cobb ,  Julia Ann Oberlin

    发明人： Duane Donald Fortune ,  Morgan Daniel Murphy ,  Robert Joseph Myers ,  Pamela Ann Roe ,  Phillip E Kaltenbacher, II ,  Stuart Stites Sullivan ,  Gregory Allen Cobb ,  Julia Ann Oberlin

    IPC分类号： G01L102

    CPC分类号： B60R21/01516 ,  B60N2/002 ,  B60R21/0152 ,  G01G5/04 ,  G01G19/4142 ,  G01L1/02

    摘要： An improved weight estimation apparatus in which an elastomeric bladder is supported on a semi-rigid backer board which is installed in a vehicle seat between the seat cushion and an underlying spring suspension. The bladder is secured onto the backer board, and the backer board is attached to the seat, enabling proper and consistent placement of the bladder relative to the seat surface. The backer board provides the reaction surface for the bladder, and masks non-uniformities of the seat structure. Additionally, the backer board will reduce or eliminate the effect of objects lying on the floor under the seat, which might otherwise pinch the bladder and produce weight estimation errors. Further, the board tends to protect the bladder from damage due to sharp objects, pinching by the suspension elements, and the effects of wires or cables routed through the seat. The backer board may be smooth to provide a uniform reaction surface, or contoured to increase or decrease sensitivity to weight applied on certain areas of the seating surface.

    摘要翻译： 一种改进的重量估计装置，其中弹性体囊被支撑在半刚性支撑板上，该半刚性支撑板安装在座垫和下面的弹簧悬架之间的车辆座椅中。 气囊被固定在支承板上，并且支撑板附接到座椅上，使得气囊相对于座椅表面的适当和一致的放置。 支撑板提供了膀胱的反应表面，并掩盖座椅结构的不均匀性。 此外，背板将减少或消除躺在座椅下面的地板上的物体的作用，否则可能会夹住膀胱并产生重量估计误差。 此外，板倾向于保护膀胱免受尖锐物体的伤害，由悬挂元件夹住，以及穿过座椅的电线或电缆的影响。 支撑板可以是平滑的以提供均匀的反应表面，或者轮廓以增加或降低施加在座面的某些区域上的重量的灵敏度。

    Adaptive pressure based weight estimation system for a vehicle occupant
    2.
    发明授权
    Adaptive pressure based weight estimation system for a vehicle occupant 失效
    用于车辆乘客的基于压力的自适应重量估计系统

    公开(公告)号：US6138067A

    公开(公告)日：2000-10-24

    申请号：US88038

    申请日：1998-06-01

    申请人： Gregory Allen Cobb ,  Morgan Daniel Murphy ,  Pamela Ann Roe

    发明人： Gregory Allen Cobb ,  Morgan Daniel Murphy ,  Pamela Ann Roe

    IPC分类号： B60N2/00 ,  B60N2/90 ,  B60N5/00 ,  B60R21/01 ,  B60R21/015 ,  B60R21/16 ,  G01G5/04 ,  G01G5/06 ,  G01G19/414 ,  G01G19/52 ,  G01G23/48 ,  G01L1/02 ,  G06F17/00 ,  B60R22/00

    CPC分类号： B60R21/01516 ,  B60N2/002 ,  B60R21/0152 ,  G01G19/4142 ,  G01G5/04 ,  G01L1/02

    摘要： An improved pressure-based weight estimation system that includes an adaptive technique for reliably and accurately determining the vacant, or unoccupied, seat pressure. The vacant seat pressure is initially determined by a factory calibration procedure, and is thereafter suitably updated by an adaptive learning algorithm based on temperature, time, and the measured pressure. If the seat temperature is within a normal range, and the measured pressure remains at least a predetermined amount below the calibrated vacant seat pressure for at least a predetermined time, a fraction of the difference between the measured and calibrated values is subtracted from the calibrated value to form a new calibration value. The predetermined difference amount determines the sensitivity of the control, and the predetermined time prevents adaptive correction of the calibration value due to transient pressure conditions.

    摘要翻译： 一种改进的基于压力的重量估计系统，其包括用于可靠和准确地确定空闲或未占用的座椅压力的自适应技术。 空座位压力最初由工厂校准程序确定，然后通过基于温度，时间和测量压力的自适应学习算法适当更新。 如果座椅温度在正常范围内，并且所测量的压力在校准的空座椅压力下至少保持至少预定的量至少预定的时间，则从校准值中减去测量值和校准值之间的差值的一部分 以形成新的校准值。 预定差量决定了控制的灵敏度，并且预定时间阻止了由于瞬时压力条件引起的校准值的自适应校正。

    Seat occupant weight detection system having compensation for seat aging and usage
    3.
    发明授权
    Seat occupant weight detection system having compensation for seat aging and usage 有权
    座椅重量检测系统具有对座椅老化和使用的补偿

    公开(公告)号：US06479766B2

    公开(公告)日：2002-11-12

    申请号：US09816024

    申请日：2001-03-26

    申请人： Charles A. Gray ,  Royce L. Rennaker ,  Phillip E Kaltenbacher, II ,  Chance Lee Scales ,  James Gerard Gallagher ,  Gregory Allen Cobb

    发明人： Charles A. Gray ,  Royce L. Rennaker ,  Phillip E Kaltenbacher, II ,  Chance Lee Scales ,  James Gerard Gallagher ,  Gregory Allen Cobb

    IPC分类号： G01G2301

    CPC分类号： B60N2/002

    摘要： An improved occupant weight detection system measures the pressure in a fluid-filled bladder disposed in or under a foam seat cushion as an indication of occupant weight, and periodically adjusts the pressure vs. occupant weight relationship to compensate for changes due to aging and usage of the foam seat cushion. The system controller develops an aging adjustment value based on a measure of the cumulative aging and usage of the seat, and uses the developed adjustment value to compensate the operation of the system. The aging adjustment value is determined primarily as a function of occupant weight and time of seat occupancy, and the compensation is achieved by using the aging adjustment value to adjust either the estimated weight, or a threshold to which the measured pressure is compared for purposes of deciding if restraint deployment should be enabled.

    摘要翻译： 改进的乘员体重检测系统测量布置在泡沫座垫内或其下的流体填充的气囊中的压力，作为乘员重量的指示，并周期性地调整压力与乘员重量的关系，以补偿由于老化和使用引起的变化 泡沫座垫。 系统控制器根据座椅的累积老化和使用情况测量出老化调整值，并使用开发的调整值补偿系统的运行。 老化调整值主要由乘员体重和座位占用时间的函数决定，并且通过使用老化调整值来实现补偿，以调整估计的重量或将测量的压力与阈值进行比较 决定是否启用限制部署。

    Stress relief method for a fluid filled elastomeric bladder
    4.
    发明授权
    Stress relief method for a fluid filled elastomeric bladder 有权
    流体填充弹性体膀胱的应力消除方法

    公开(公告)号：US06392166B1

    公开(公告)日：2002-05-21

    申请号：US09707605

    申请日：2000-11-08

    申请人： Duane Donald Fortune ,  Morgan D. Murphy ,  Gregory Allen Cobb ,  Julia Ann Oberlin ,  Phillip E Kaltenbacher, II

    发明人： Duane Donald Fortune ,  Morgan D. Murphy ,  Gregory Allen Cobb ,  Julia Ann Oberlin ,  Phillip E Kaltenbacher, II

    IPC分类号： F27D300

    CPC分类号： G01G19/4142 ,  B29C71/02 ,  B29C2071/022 ,  B29L2022/02 ,  B29L2022/025 ,  B60N2/002 ,  B60R21/01522

    摘要： An improved method of producing a fluid filled elastomeric bladder for occupant weight sensing involves annealing the bladder material prior to its installation in a vehicle seat so as to quickly relieve initial stress due to stretching of the bladder material which occurs during fluid injection. In a preferred implementation, the initial stress is relieved by immersing the fluid-filled bladders in heated water for a time period on the order of 60 seconds or more. Alternatively, the bladder material may be heated with steam or radiant heat, by injecting heated fluid into the bladder, or by injecting heated air into an empty bladder before fluid injection. In each case the initial stress is quickly relieved, substantially eliminating a potential source of error in the sensed weight.

    摘要翻译： 制造用于乘员体重感测的流体填充的弹性体囊的改进方法包括在其安装在车辆座椅中之前退火膀胱材料，以便快速减轻在流体注射期间发生的膀胱材料的拉伸引起的初始应力。 在优选的实施方式中，通过将充满流体的囊浸入加热的水中达60秒或更多的时间段来缓解初始应力。 或者，可以用蒸汽或辐射热加热气囊材料，通过将加热的流体注入到膀胱中，或者在流体注射之前将加热的空气注入空的膀胱中。 在每种情况下，初始应力快速释放，基本上消除了感测重量的潜在的误差源。