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1. 发明授权

US5987370A Vehicle occupant weight estimation apparatus having fluid-filled seat bladder 失效
标题翻译：具有流体充气座椅气囊的车辆乘员体重估计装置
公开(公告)号：US5987370A
公开(公告)日：1999-11-16
申请号：US923020
申请日：1997-09-03
申请人： Morgan Daniel Murphy , Robert Joseph Myers , Pamela Ann Roe , William Lloyd Piper , Duane Donald Fortune , Hamid Reza Borzabadi , Karl Edward Stone , Mark Robert Vincen , Stuart Stites Sullivan , Robert Allan Perisho, Jr. , Robert Keith Constable , Gregory Allen Cobb
发明人： Morgan Daniel Murphy , Robert Joseph Myers , Pamela Ann Roe , William Lloyd Piper , Duane Donald Fortune , Hamid Reza Borzabadi , Karl Edward Stone , Mark Robert Vincen , Stuart Stites Sullivan , Robert Allan Perisho, Jr. , Robert Keith Constable , Gregory Allen Cobb
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 , B60R21/32 , G06G7/76
CPC分类号： B60R21/01516 , B60N2/002 , B60R21/0152 , G01G19/4142 , G01G5/04 , G01L1/02
摘要： An improved weight estimation apparatus includes a closed elastomeric bladder filled with fluid and installed in the foam cushion of a vehicle seat bottom, with at least one pressure sensor installed in a closed exit port of the bladder. A temperature sensor disposed in proximity to the bladder provides a temperature signal, and a controller estimates the weight of the occupant based on the temperature and pressure signals. The pressure sensor is preferably configured to sense the gage pressure--that is, the differential pressure between the fluid and atmospheric pressure--at the center of gravity of the fluid in order to provide a stable output independent of changing atmospheric pressure and changing orientation of the bladder due to vehicle pitch and roll.
摘要翻译：改进的重量估计装置包括填充有流体并且安装在车辆座椅底部的泡沫垫中的封闭弹性体囊，其中至少一个压力传感器安装在囊的封闭出口中。设置在气囊附近的温度传感器提供温度信号，并且控制器基于温度和压力信号来估计乘员的体重。压力传感器优选地被配置成感测流量压力，即流体和大气压力之间的压力 - 在流体的重心处，以便提供独立于变化的大气压力的稳定输出和改变方向膀胱因车辆俯仰和滚动。

2. 发明授权

US06058341A Vehicle occupant weight estimation apparatus having controlled volume seat bladder 失效
标题翻译：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。

3. 发明授权

US06490936B1 Bladder and support structure for occupant weight estimation 有权
标题翻译：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。

4. 发明授权

US06246936B1 Vehicle occupant characterization method based on sensed occupant weight 有权
标题翻译：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。

5. 发明授权

US6101436A Vehicle occupant weight estimation apparatus having fluid-filled multi-cell seat bladder 失效
标题翻译：车载乘员体重估计装置具有流体填充的多单元座椅气囊
公开(公告)号：US6101436A
公开(公告)日：2000-08-08
申请号：US28869
申请日：1998-02-18
申请人： Duane Donald Fortune , Robert Joseph Myers , Morgan Daniel Murphy , Pamela Ann Roe
发明人： Duane Donald Fortune , Robert Joseph Myers , 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
CPC分类号： B60R21/01516 , B60N2/002 , B60R21/0152 , G01G19/4142 , G01G5/04 , G01L1/02
摘要： An improved weight estimation apparatus in which a closed, multiple cell elastomeric bladder filled with fluid is installed in the foam cushion of a vehicle seat bottom, with at least one pressure sensor installed in a closed exit port of the bladder. The multiple cells of the bladder are formed by a pattern of spot welds between the top and bottom layers of the bladder, creating an array of generally circular or hexagonal cells between which the fluid can freely flow. The array of cells maximizes the pressure response for improved sensitivity, and minimizes the amount of fluid required to detect occupant weight, thereby minimizing the weight of the fluid-filled bladder. The pattern of spot welds in the vicinity of the pressure sensing location may be altered to reduce sensitivity to forces applied in proximity to the exit port. In a first embodiment, a more dense pattern of spot welds is provided in the vicinity of the exit port, while in a second embodiment, continuous welding is used to form a pattern of closed fluid-free pockets in the vicinity of the exit port.
摘要翻译：一种改进的重量估计装置，其中填充有流体的封闭的多单元弹性体囊被安装在车辆座椅底部的泡沫垫中，其中至少一个压力传感器安装在气囊的封闭出口中。膀胱的多个细胞通过膀胱的顶层和底层之间的点焊图案形成，产生大致圆形或六边形细胞的阵列，流体可在其间自由流动。细胞阵列使压力响应最大化以提高灵敏度，并且最小化检测乘员重量所需的流体量，从而使流体填充的膀胱的重量最小化。可以改变压力感测位置附近的点焊模式，以降低对靠近出口施加的力的敏感性。在第一实施例中，在出口附近提供更密集的点焊图案，而在第二实施例中，使用连续焊接在出口附近形成封闭的无流体袋的图案。

6. 发明授权

US6138067A Adaptive pressure based weight estimation system for a vehicle occupant 失效
标题翻译：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。

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