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1. 发明授权

US6158768A Apparatus and method for discerning certain occupant characteristics using a plurality of capacitive sensors 失效
标题翻译：使用多个电容传感器识别某些乘员特征的装置和方法
公开(公告)号：US6158768A
公开(公告)日：2000-12-12
申请号：US27311
申请日：1998-02-20
申请人： Charles E. Steffens, Jr. , Brian K. Blackburn , Joseph E. Mazur
发明人： Charles E. Steffens, Jr. , Brian K. Blackburn , Joseph E. Mazur
IPC分类号： B60R21/01 , B60R21/015 , B60R21/32
CPC分类号： B60R21/01532 , B60R21/01554
摘要： An apparatus (47) determines presence, type, and a size value of a vehicle occupant (14) located within a vehicle (12). A first capacitive sensor (46A) is located on a first side of an occupant location within the vehicle (12) and senses a first capacitance value. An associated drive/monitor circuit (42A) provides a first signal (44A) indicative of the first capacitance value. A controller (27) determines from the first signal (44A) whether the first capacitance value is indicative of an occupant located proximate to the first capacitive sensor (46A). The controller (27) determines a first distance between the first capacitive sensor (46A) and the occupant (14) using the first signal (44A). A second capacitive sensor (46C) is located on a second side of the occupant location and senses a second capacitance value. An associated drive/monitor circuit (42C) provides a second signal (44C) indicative of the second capacitance value. The controller (27) determines from the second signal (44C) whether the second capacitance value is indicative of an occupant located proximate to the second capacitive sensor (46C). The controller (27) determines a second distance between the second capacitive sensor (46C) and the occupant using the second signal (44C). The controller (27) determines from at least one of the first and second signals (44A and 44C) whether the occupant type is a child in a child seat. The controller (27) determines a size value of the occupant using the first and second determined distances.
摘要翻译：设备（47）确定位于车辆（12）内的车辆乘客（14）的存在，类型和大小值。第一电容传感器（46A）位于车辆（12）内的乘员位置的第一侧上并且感测第一电容值。相关联的驱动/监视电路（42A）提供指示第一电容值的第一信号（44A）。控制器（27）从第一信号（44A）确定第一电容值是否指示位于第一电容传感器（46A）附近的乘员。控制器（27）使用第一信号（44A）确定第一电容传感器（46A）和乘员（14）之间的第一距离。第二电容传感器（46C）位于乘员位置的第二侧，并感测第二电容值。相关联的驱动/监视电路（42C）提供指示第二电容值的第二信号（44C）。控制器（27）根据第二信号（44C）确定第二电容值是否指示位于第二电容传感器（46C）附近的乘员。控制器（27）使用第二信号（44C）确定第二电容传感器（46C）和乘员之间的第二距离。控制器（27）从第一和第二信号（44A和44C）中的至少一个确定乘客类型是否是儿童座椅中的儿童。控制器（27）使用第一和第二确定的距离确定乘员的大小值。

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