Method and apparatus for disabling an actuatable restraint based on determined crash velocity and displacement
    2.
    发明授权
    Method and apparatus for disabling an actuatable restraint based on determined crash velocity and displacement 失效
    基于确定的碰撞速度和位移来禁用可启动约束的方法和装置

    公开(公告)号:US06212454B1

    公开(公告)日:2001-04-03

    申请号:US09121786

    申请日:1998-07-23

    IPC分类号: G06F1700

    摘要: An apparatus for controlling an actuatable restraint (14) in a vehicle (12) includes an accelerometer (10) for providing a crash acceleration signal. A velocity determiner (60) determines a crash velocity value from the crash acceleration signal. A first comparator (62) compares the determined crash velocity value against a velocity threshold value (64). A displacement determiner (70) determines a crash displacement value from the crash acceleration signal. A second comparator (72) compares the determined crash displacement value against a displacement threshold value (74). A deployment determiner (50) is coupled to and responsive to the accelerometer (10) for determining if a deployment crash event is occurring and for providing a deployment control signal when it determines that a deployment crash event is occurring. The deployment control signal is further processed (80, 82) so that the deployment control signal is prevented from actuating the actuatable restraint (14) when the determined velocity value is greater than said velocity threshold value and the determined displacement value is greater than the displacement threshold value.

    摘要翻译: 用于控制车辆(12)中的可致动约束(14)的装置包括用于提供碰撞加速度信号的加速度计(10)。 速度确定器(60)根据碰撞加速度信号确定碰撞速度值。 第一比较器(62)将确定的碰撞速度值与速度阈值(64)进行比较。 位移确定器(70)根据碰撞加速度信号确定碰撞位移值。 第二比较器(72)将确定的碰撞位移值与位移阈值(74)进行比较。 部署确定器(50)耦合到并响应于加速度计(10),用于确定是否正在发生部署崩溃事件,并且当其确定部署崩溃事件发生时提供部署控制信号。 部署控制信号被进一步处理(80,82),使得当确定的速度值大于所述速度阈值并且确定的位移值大于位移时,防止展开控制信号致动可启动约束(14) 阈值。