公开(公告)号：US06347268B1

公开(公告)日：2002-02-12

申请号：US09540546

申请日：2000-03-31

申请人： Koichi Fujita ,  Takao Akatsuka ,  Motomi Iyoda ,  Koichi Sugiyama ,  Hiromichi Fujishima ,  Tomokazu Sakaguchi

发明人： Koichi Fujita ,  Takao Akatsuka ,  Motomi Iyoda ,  Koichi Sugiyama ,  Hiromichi Fujishima ,  Tomokazu Sakaguchi

IPC分类号： G06F1700

CPC分类号： B60R21/0133 ,  B60R21/013 ,  B60R21/01558 ,  B60R2021/01006 ,  B60R2021/0104 ,  B60R2021/01068 ,  B60R2021/01075 ,  B60R2021/01322

摘要： A structure and method for enabling a passive vehicle occupant restraint to be activated at the earliest possible timing, irrespective of a type of a collision. A floor sensor measures a deceleration G applied to the length of a vehicle and outputs the deceleration as the measurement G. An arithmetic unit carries out a predetermined arithmetic operation on the measurement G output from the floor sensor, so as to determine a function f(G). A conditional activation unit has a variation pattern of a threshold value T that varies with a variation in velocity v of a non-stationary object. The conditional activation unit reads a threshold value T corresponding to an input velocity v from the variation pattern and compares the threshold value T with the value of the function f(G). In case that the value of the function f(G) exceeds the threshold value T, an activation signal A is input to a driving circuit. A satellite sensor outputs an ON signal when a deceleration of not less than a predetermined reference value is applied to the vehicle. A threshold variation pattern selection unit changes the variation pattern of the threshold value T against the velocity v used in the conditional activation unit to another variation pattern, in response to the ON signal output from the satellite sensor.

摘要翻译： 无论碰撞类型如何，能够尽可能早地激活被动式车辆乘员约束的结构和方法。 地板传感器测量应用于车辆长度的减速度G并输出减速度作为测量值G.算术单元对从地板传感器输出的测量G执行预定的算术运算，以确定函数f（ G）。 条件激活单元具有根据非静止物体的速度v的变化而变化的阈值T的变化模式。 条件激活单元从变化模式读取对应于输入速度v的阈值T，并将阈值T与函数f（G）的值进行比较。 在函数f（G）的值超过阈值T的情况下，将激活信号A输入到驱动电路。 当不小于预定参考值的减速度被施加到车辆时，卫星传感器输出ON信号。 响应于从卫星传感器输出的ON信号，阈值变化模式选择单元将阈值T的变化模式相对于条件激活单元中使用的速度v改变为另一种变化模式。

公开(公告)号：US06170864B2

公开(公告)日：2001-01-09

申请号：US08962386

申请日：1997-10-31

申请人： Koichi Fujita ,  Takao Akatsuka ,  Motomi Iyoda ,  Koichi Sugiyama ,  Hiromichi Fujishima ,  Tomokazu Sakaguchi

发明人： Koichi Fujita ,  Takao Akatsuka ,  Motomi Iyoda ,  Koichi Sugiyama ,  Hiromichi Fujishima ,  Tomokazu Sakaguchi

IPC分类号： B60R2132

CPC分类号： B60R21/0133 ,  B60R21/013 ,  B60R21/01558 ,  B60R2021/01006 ,  B60R2021/0104 ,  B60R2021/01068 ,  B60R2021/01075 ,  B60R2021/01322

摘要： A floor sensor 32 measures a deceleration G applied to the length of a vehicle and outputs the deceleration as the measurement G. An arithmetic unit 58 carries out a predetermined arithmetic operation on the measurement G output from the floor sensor 32, so as to determine a function f(G). A conditional activation unit 60 has a variation pattern of a threshold value T that varies with a variation in velocity v of a non-stationary object. The conditional activation unit 60 reads a threshold value T corresponding to an input velocity v from the variation pattern and compares the threshold value T with the value of the function f(G). In case that the value of the function f(G) exceeds the threshold value T, an activation signal A is input to a driving circuit 34. A satellite sensor 30 outputs an ON signal when a deceleration of not less than a predetermined reference value is applied to the vehicle. A threshold variation pattern changing unit 42 changes the variation pattern of the threshold value T against the velocity v used in the conditional activation unit 60 to another variation pattern, in response to the ON signal output from the satellite sensor 30. This structure of the present invention enables a passive vehicle occupant restraint to be activated at the earliest possible timing, irrespective of a type of a collision, in which the vehicle crashes.

摘要翻译： 地面传感器32测量应用于车辆长度的减速度G，并输出减速度作为测量G.算术单元58对从地面传感器32输出的测量G执行预定的算术运算，以确定 函数f（G）。 条件激活单元60具有根据非静止物体的速度v的变化而变化的阈值T的变化模式。 条件激活单元60从变化模式读取与输入速度v对应的阈值T，并将阈值T与函数f（G）的值进行比较。 在功能f（G）的值超过阈值T的情况下，激活信号A被输入到驱动电路34.卫星传感器30当不小于预定参考值的减速度为 应用于车辆。 阈值变化模式改变单元42响应于从卫星传感器30输出的ON信号，将阈值T的变化模式相对于条件激活单元60中使用的速度v改变为另一变化模式。本结构 本发明使得被动车辆乘员约束能够在尽可能早的时间被激活，而不管碰撞的类型如何，车辆碰撞。