CAPACITIVE SENSORS FOR VEHICULAR ENVIRONMENTS
    1.
    发明公开
    CAPACITIVE SENSORS FOR VEHICULAR ENVIRONMENTS 审中-公开
    电容式传感器用于汽车

    公开(公告)号:EP1192409A2

    公开(公告)日:2002-04-03

    申请号:EP00914692.9

    申请日:2000-02-24

    IPC分类号: G01B7/16

    摘要: Capacitive sensors used to detect force upon a transparency product (18) for detecting and discriminating crash characteristics of a vehicle, as well as capacitive sensors used in conjunction with a conductive panel functioning as an airbag cover and ground plane for the capacitive sensors. The capacitive sensors are made up of electrodes (22 and 22'), of which one may be a conductive coating (28). The capacitive sensor can be arranged upon a substrate and can include a reference sensor. Long term effect of temperature upon sensor output are compensated for with an algorithm comparing constant desired sensor output to low frequency drift due to temperature effects. Moisture upon a transparency product is distinguished from a nearby object due to the capacitance sensed. Sleep detection algorithm detect when a vehicle operator is drowsy. A capacitive sensor array having a nested circle sensor and L-shaped sensors, along with a dummy sensor is used in a sunroof equipped vehicle for sensing occupant head position.

    CAPACITIVE SENSING IN VEHICLES
    3.
    发明公开
    CAPACITIVE SENSING IN VEHICLES 失效
    电容式检测车辆

    公开(公告)号:EP0996557A4

    公开(公告)日:2005-05-04

    申请号:EP98939092

    申请日:1998-07-23

    CPC分类号: B60R21/01532 B60N2/002

    摘要: A passenger sensing system of electrodes (12) in varying configurations. Electrodes (12) can be positioned proximate an airbag door (44), each providing a signal corresponding to occupant proximity, and a comparator for comparing the signals employed to make better decisions than with a single signal. Electrodes (12) may be formed on a dielectric substrate (16) and separated by a grounded area (14) configured to block line-of-sight between each of the electrodes (12). Electrodes (12) may be formed of conductive material attached to dielectric material with a conductive coating on one surface. Electrodes (12) may be embedded within a vehicular trimpiece (72) and adjacent to a conductive material connected to ground, and a DC voltage is applied to one electrode to form a conductive path to a second electrode, the conductive path being formed by moisture. A drive electrode (22) and a receive electrode (26) may be formed integrally with a vehicle window (34).

    IMPAIRED TRANSPORTATION VEHICLE OPERATOR SYSTEM
    5.
    发明公开
    IMPAIRED TRANSPORTATION VEHICLE OPERATOR SYSTEM 失效
    警告更改本驱动器的能力

    公开(公告)号:EP0853559A1

    公开(公告)日:1998-07-22

    申请号:EP96929859.0

    申请日:1996-08-27

    发明人: KITHIL,Philip W.

    摘要: A system for detecting impairment of operating ability of transportation vehicle operators due to sleepiness, intoxication or other causes, and for sounding an alarm when operator impairment is found. The invention employs an array of at least three dual electrode capacitive coupling sensors, placed in the headliner above the operator's seat, which sense operator head position and motion. Outputs from the sensors, after suitable processing and amplification, are analyzed by a microprocessor to determine the operator's head position and motion, through triangulation analysis of distances from the operator's head to each sensor. The microprocessor records, tracks and compares the operator head motion data to profiles of normal head motion and impaired head motion, to detect any head motion indicative of operator impairment. When operator impairment is thus determined, the microprocessor activates any of a variety of warning devices, to warn and alert the operator and possibly also operators of other nearby vehicles, that there is a state of operator impairment.

    IMPAIRED TRANSPORTATION VEHICLE OPERATOR SYSTEM
    6.
    发明授权
    IMPAIRED TRANSPORTATION VEHICLE OPERATOR SYSTEM 失效
    警告更改本驱动器的能力

    公开(公告)号:EP0853559B1

    公开(公告)日:2002-03-20

    申请号:EP96929859.5

    申请日:1996-08-27

    发明人: KITHIL,Philip W.

    IPC分类号: B60Q1/00 G08B23/00 G06F7/70

    摘要: A system for detecting impairment of operating ability of transportation vehicle operators due to sleepiness, intoxication or other causes, and for sounding an alarm when operator impairment is found. The invention employs an array of at least three dual electrode capacitive coupling sensors, placed in the headliner above the operator's seat, which sense operator head position and motion. Outputs from the sensors, after suitable processing and amplification, are analyzed by a microprocessor to determine the operator's head position and motion, through triangulation analysis of distances from the operator's head to each sensor. The microprocessor records, tracks and compares the operator head motion data to profiles of normal head motion and impaired head motion, to detect any head motion indicative of operator impairment. When operator impairment is thus determined, the microprocessor activates any of a variety of warning devices, to warn and alert the operator and possibly also operators of other nearby vehicles, that there is a state of operator impairment.

    CAPACITIVE SENSING IN VEHICLES
    7.
    发明公开
    CAPACITIVE SENSING IN VEHICLES 失效
    电容式检测车辆

    公开(公告)号:EP0996557A1

    公开(公告)日:2000-05-03

    申请号:EP98939092.7

    申请日:1998-07-23

    IPC分类号: B60R21/32

    CPC分类号: B60R21/01532 B60N2/002

    摘要: A passenger sensing system of electrodes (12) in varying configurations. Electrodes (12) can be positioned proximate an airbag door (44), each providing a signal corresponding to occupant proximity, and a comparator for comparing the signals employed to make better decisions than with a single signal. Electrodes (12) may be formed on a dielectric substrate (16) and separated by a grounded area (14) configured to block line-of-sight between each of the electrodes (12). Electrodes (12) may be formed of conductive material attached to dielectric material with a conductive coating on one surface. Electrodes (12) may be embedded within a vehicular trimpiece (72) and adjacent to a conductive material connected to ground, and a DC voltage is applied to one electrode to form a conductive path to a second electrode, the conductive path being formed by moisture. A drive electrode (22) and a receive electrode (26) may be formed integrally with a vehicle window (34).

    IMPAIRED TRANSPORTATION VEHICLE OPERATOR SYSTEM
    9.
    发明公开
    IMPAIRED TRANSPORTATION VEHICLE OPERATOR SYSTEM 失效
    警告更改本驱动器的能力

    公开(公告)号:EP0853559A4

    公开(公告)日:2000-07-05

    申请号:EP96929859

    申请日:1996-08-27

    发明人: KITHIL PHILIP W

    摘要: A system for detecting impairment of operating ability of transportation vehicle operators due to sleepiness, intoxication or other causes, and for sounding an alarm when operator impairment is found. The invention employs an array of at least three dual electrode capacitive coupling sensors, placed in the headliner above the operator's seat, which sense operator head position and motion. Outputs from the sensors, after suitable processing and amplification, are analyzed by a microprocessor to determine the operator's head position and motion, through triangulation analysis of distances from the operator's head to each sensor. The microprocessor records, tracks and compares the operator head motion data to profiles of normal head motion and impaired head motion, to detect any head motion indicative of operator impairment. When operator impairment is thus determined, the microprocessor activates any of a variety of warning devices, to warn and alert the operator and possibly also operators of other nearby vehicles, that there is a state of operator impairment.

    CAPACITIVE SENSORS FOR VEHICULAR ENVIRONMENTS
    10.
    发明公开
    CAPACITIVE SENSORS FOR VEHICULAR ENVIRONMENTS 审中-公开
    电容式传感器用于汽车

    公开(公告)号:EP1192409A4

    公开(公告)日:2004-11-10

    申请号:EP00914692

    申请日:2000-02-24

    发明人: KITHIL PHILIP W

    摘要: Capacitive sensors used to detect force upon a transparency product for detecting and discriminating crash characteristics of a vehicle, as well as capacitive sensors used in conjunction with a conductive panel functioning as an airbag cover and ground plane for the capacitive sensors. The capacitive sensors are made up of electrodes, of which one may be a conductive coating. The capacitive sensors can be arranged upon a substrate and can include a reference sensor. Long term effects of temperature upon sensor output are compensated for with an algorithm comparing constant desired sensor output to low frequency drift due to temperature effects. Moisture upon a transparency product is distinguished from a nearby object due to the capacitance sensed. A sleep detection algorithm detects when a vehicle operator is drowsy. A capacitive sensor array having a nested circle sensor and L-shaped sensors, along with a dummy sensor is used in a sunroof-equipped vehicle for sensing occupant head position.