Method and apparatus for sensing a vehicle crash condition using
velocity enhanced acceleration crash metrics
    1.
    发明授权
    Method and apparatus for sensing a vehicle crash condition using velocity enhanced acceleration crash metrics 失效
    使用速度增强加速度碰撞度量来感测车辆碰撞状况的方法和装置

    公开(公告)号:US5587906A

    公开(公告)日:1996-12-24

    申请号:US258952

    申请日:1994-06-13

    IPC分类号: B60R21/01 B60R21/32

    CPC分类号: B60R21/0132

    摘要: An apparatus for sensing a vehicle crash condition includes an accelerometer (20) for sensing a vehicle crash condition and for providing a signal having a characteristic indicative of the vehicle crash condition. A crash velocity determining circuit (74) determines a crash velocity value (78) from the accelerometer. Crash metric determining circuits (80, 82, 94, 96, 104, 108) determine crash metric values functionally related to acceleration. Threshold determining circuits (88, 98, 112) determining associated threshold values functionally related to the determined crash velocity value (78). Comparators (90, 100, 116) compare the determined crash metric values against associated threshold values. A controller (34) provides a control signal to control actuation of a restraining device in response to the comparison. A shape monitoring circuit (120) determines if the shape of the acceleration signal matches a predetermined shape. If the shape matches, the controller provides the control signal.

    摘要翻译: 用于感测车辆碰撞状况的装置包括用于感测车辆碰撞状况并用于提供具有指示车辆碰撞状况的特征的信号的加速度计(20)。 碰撞速度确定电路(74)确定来自加速度计的碰撞速度值(78)。 碰撞度量确定电路(80,82,94,96,104,108)确定与加速度功能相关的碰撞度量值。 确定与所确定的碰撞速度值(78)功能相关的相关阈值的阈值确定电路(88,98,112)。 比较器(90,100,116)将确定的故障度量值与相关联的阈值进行比较。 响应于比较,控制器(34)提供控制信号以控制限制装置的致动。 形状监视电路(120)确定加速度信号的形状是否匹配预定的形状。 如果形状匹配,则控制器提供控制信号。

    Map matching method for vehicle safety warning system
    2.
    发明授权
    Map matching method for vehicle safety warning system 有权
    车辆安全警示系统地图匹配方法

    公开(公告)号:US08489316B1

    公开(公告)日:2013-07-16

    申请号:US13535957

    申请日:2012-06-28

    IPC分类号: G05D1/02

    摘要: A map matching method for a vehicle safety warning system (VSWS) is provided. The method includes the steps of a) determining if intelligent transportation system (ITS) map data is available, b) determining a vehicle location and a vehicle heading, c) determining an envelope area around a road feature defined by the ITS map data, d) determining a segment heading for a segment of the road feature, e) determining a separation distance between the vehicle location and the segment if the vehicle location is located within the envelope area, the segment heading is substantially similar to the vehicle heading, and optionally, the segment elevation is substantially similar to the vehicle elevation, and f) map matching the vehicle location to the segment if the separation distance is less than a threshold.

    摘要翻译: 提供了一种用于车辆安全警告系统(VSWS)的地图匹配方法。 该方法包括以下步骤:a)确定智能交通系统(ITS)地图数据是否可用,b)确定车辆位置和车辆航向,c)确定由ITS地图数据定义的道路特征周围的包络区域,d )确定所述道路特征的段的段航向,e)如果所述车辆位置位于所述包围区域内,则确定所述车辆位置与所述段之间的间隔距离,所述段航向基本上类似于所述车辆航向,以及任选地 所述段高度基本上类似于所述车辆高程,以及f)如果所述分隔距离小于阈值,则f)将所述车辆位置与所述段匹配。