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    Vehicle occupant characterization method based on sensed occupant weight
    1.
    发明授权
    Vehicle occupant characterization method based on sensed occupant weight 有权
    基于感知乘员体重的车辆乘员表征方法

    公开(公告)号：US06246936B1

    公开(公告)日：2001-06-12

    申请号：US09412936

    申请日：1999-10-05

    申请人： Morgan Daniel Murphy ,  Pamela Ann Roe ,  Peter Alan Thayer ,  Douglas Allen Nunan ,  Phillip E Kaltenbacher, II ,  Duane Donald Fortune ,  Chiutsun Albert Lee ,  Charles A. Gray ,  Stuart Stites Sullivan ,  David R. Little

    发明人： Morgan Daniel Murphy ,  Pamela Ann Roe ,  Peter Alan Thayer ,  Douglas Allen Nunan ,  Phillip E Kaltenbacher, II ,  Duane Donald Fortune ,  Chiutsun Albert Lee ,  Charles A. Gray ,  Stuart Stites Sullivan ,  David R. Little

    IPC分类号： G06F1700

    CPC分类号： B60R21/01516 ,  B60R21/01556 ,  G01G19/4142

    摘要： An improved weight-based occupant characterization method that can inexpensively and reliably distinguish between a child or small adult and a tightly cinched child seat. When the sensed weight is in a specified range that could be produced by a tightly cinched child seat, the system characterizes the occupant based on a detected variation in sensed weight during movement of the vehicle. If the variance of the sensed weight is below a threshold for a predetermined interval, the occupant is characterized as a child seat, since a tightly cinched seat belt severely restricts variance. If the variance exceeds the threshold for a predetermined interval, the occupant is characterized as a child or small adult. A correlative factor that can be used in distinguishing between a child seat and a child or small adult is determined by computing a slope reversal rate, or frequency, of the measured weight. In this case, a child seat is indicated by the combination of low variance and a high frequency, whereas a child or small adult is indicated by the combination of high variance and a low frequency. Additionally, movement of the vehicle can be detected when the variance of the sensed weight is within a predetermined range for at least a predetermined interval.

    摘要翻译： 改进的基于重量的乘员表征方法，其可以廉价和可靠地区分儿童或小成人和紧密束缚的儿童座椅。 当感测到的重量在可以由紧密束缚的儿童座椅产生的指定范围内时，系统基于在车辆移动期间检测到的重量变化来表征乘员。 如果感测到的重量的差异在预定间隔内低于阈值，则乘客被表征为儿童座椅，因为紧紧的安全带严重限制了变化。 如果方差超过阈值达预定间隔，乘客被表征为儿童或小成人。 通过计算测量重量的斜率反转率或频率来确定可用于区分儿童座椅和儿童或小成人的相关因素。 在这种情况下，儿童座椅由低方差和高频率的组合表示，而小孩或小成人由高方差和低频率的组合表示。 此外，当感测到的重量的变化在至少预定间隔内在预定范围内时，可以检测车辆的移动。

    Bladder and support structure for occupant weight estimation
    2.
    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。

    Vehicle occupant weight estimation apparatus having controlled volume seat bladder
    4.
    发明授权
    Vehicle occupant weight estimation apparatus having controlled volume seat bladder 失效
    具有受控体积座椅膀胱的车辆乘员体重估计装置

    公开(公告)号：US06058341A

    公开(公告)日：2000-05-02

    申请号：US39238

    申请日：1998-03-16

    申请人： Robert Joseph Myers ,  Morgan Daniel Murphy ,  Robert Allan Perisho, Jr. ,  Pamela Ann Roe ,  Duane Donald Fortune ,  Stuart Stites Sullivan ,  William Lloyd Piper ,  Robert Keith Constable

    发明人： Robert Joseph Myers ,  Morgan Daniel Murphy ,  Robert Allan Perisho, Jr. ,  Pamela Ann Roe ,  Duane Donald Fortune ,  Stuart Stites Sullivan ,  William Lloyd Piper ,  Robert Keith Constable

    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 ,  G05D3/00

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

    摘要： A weight estimation apparatus for the passenger seat of a motor vehicle, in which a single bladder substantially encompassing the seat bottom is evacuated and then inflated with a known volume of air. The average pressure in the bladder is determined to estimate the passenger weight. According to a first embodiment, the apparatus continues to monitor the average pressure, and the process is re-initiated if the average pressure changes by at least a predetermined percentage. According to a second embodiment, a bleed valve allows the pressure in the bladder to slowly escape, and the apparatus monitors the rate of change in pressure as a corresponding indication of passenger weight; in this embodiment, the process of evacuating and inflating is re-initiated if the monitored change in pressure does not correspond with the estimated weight. The sides of the bladder may be pleated to permit the bladder to expand under the weight of an occupant without stretching the bladder, and thereby affecting the average pressure. A temperature sensor may be disposed in proximity to the bladder provides a temperature signal for compensating the weight estimation for temperature variations. Also, the pressure sensor may be configured to sense the gage pressure--that is, the differential pressure between the bladder pressure and atmospheric pressure; alternatively, the pressure sensor may be configured to detect absolute pressure, and a second absolute pressure sensor responsive to atmospheric pressure may be used to compensate for changes in atmospheric pressure.

    摘要翻译： 一种用于机动车辆的乘客座椅的重量估计装置，其中基本上围绕座椅底部的单个囊被抽真空，然后用已知体积的空气充气。 确定膀胱中的平均压力以估计乘客体重。 根据第一实施例，设备继续监视平均压力，并且如果平均压力改变至少预定百分比，则重新启动该过程。 根据第二实施例，排气阀允许气囊中的压力缓慢地逸出，并且该装置监测作为乘客重量的相应指示的压力变化率; 在该实施例中，如果所监视的压力变化与所估计的重量不对应，则重新启动排气和充气过程。 膀胱的侧面可以打褶以允许膀胱在乘员的重量下膨胀而不拉伸膀胱，从而影响平均压力。 温度传感器可以设置在靠近气囊的位置，提供用于补偿温度变化的重量估计的温度信号。 此外，压力传感器可以被配置为感测压力压力，即，气囊压力和大气压力之间的压差; 或者，压力传感器可以被配置为检测绝对压力，并且可以使用响应于大气压力的第二绝对压力传感器来补偿大气压力的变化。

    Vehicle occupant weight detection system with occupant position compensation
    5.
    发明授权
    Vehicle occupant weight detection system with occupant position compensation 有权
    车辆乘员体重检测系统与乘员位置补偿

    公开(公告)号：US06578871B2

    公开(公告)日：2003-06-17

    申请号：US09972638

    申请日：2001-10-09

    申请人： Charles A. Gray ,  James F. Patterson ,  Chance Lee Scales ,  Phillip E Kaltenbacher, II ,  Royce L. Rennaker ,  Duane D. Fortune ,  Stuart Stites Sullivan

    发明人： Charles A. Gray ,  James F. Patterson ,  Chance Lee Scales ,  Phillip E Kaltenbacher, II ,  Royce L. Rennaker ,  Duane D. Fortune ,  Stuart Stites Sullivan

    IPC分类号： B60R2132

    CPC分类号： B60R21/01516 ,  B60R21/01526

    摘要： An improved occupant detection system and method includes a fluid-filled polymeric seat cushion bladder defining multiple fluid-filled chambers corresponding to different areas of the seat cushion, with no fluid flow between such chambers. Fluid pressures in the various individual chambers are detected and processed to develop a weight estimation that is compensated for occupant position. The chambers are configured to detect occupant weight in at least forward, rearward, inboard and outboard regions of the bottom seat cushion. When the detected pressures are unevenly distributed and the pressure in the forward, rearward, inboard or outboard regions of the seat exceeds the average pressure by at least a predetermined amount, a composite pressure indicative of occupant weight is adjusted in a direction to bias the suppression status in favor of allowing restraint deployment, unless the occupant is forwardly positioned on a seat that is also forwardly positioned.

    摘要翻译： 改进的乘员检测系统和方法包括流体填充的聚合物座垫囊，其限定对应于座垫的不同区域的多个流体填充室，在这些室之间没有流体流动。 检测并处理各个单独的室中的流体压力，以产生补偿乘员位置的重量估计。 所述腔室被构造成在底部坐垫的至少前进，后向，内侧和外侧区域中检测乘员重量。 当检测到的压力不均匀并且座椅的前进，后退，内侧或外侧区域中的压力超过平均压力至少预定量时，指示乘员重量的复合压力在偏压抑制的方向上被调整 有利于允许约束部署的状态，除非乘客向前定位在同时向前定位的座椅上。