-
公开(公告)号：US6157880A
公开(公告)日：2000-12-05
申请号：US142587
申请日：1999-05-07
CPC分类号： B60R21/0132 , B60R21/0133 , B60R21/01336
摘要： A crash detector activates a safety device (3, 4) such as an air-bag in a vehicle. The crash detector incorporates an acceleration sensor (10), the output of which must pass a threshold (11) before the signal is processed by a signal processor (2). The signal is processed optionally in conventional ways (13, 14; 16, 17) to activate the safety device. Activation of the safety device is inhibited by a slam algorithm generator (18). In the slam algorithm generator a control signal is generated which converges towards an average of the acceleration signal during periods of time in which the acceleration signal indicates an inward acceleration in excess of a predetermined level, the control signal being reduced at a substantially constant rate with time during periods in which the acceleration is not in excess of said predetermined level. The control signal is passed to a threshold means (19) which enables (15) actuation of the safety device (3, 4).
摘要翻译： PCT No.PCT / SE97 / 00269 Sec。 371日期1999年5月7日 102（e）日期1999年5月7日PCT提交1997年2月19日PCT公布。 公开号WO97 / 33776 日期1997年9月18日碰撞探测器激活车辆中的安全气囊等安全装置（3,4）。 碰撞检测器包括一个加速度传感器（10），其信号在信号由信号处理器（2）处理之前必须通过阈值（11）。 以常规方式（13,14; 16,17）可选地处理信号以激活安全装置。 猛击算法生成器（18）禁止安全装置的激活。 在砰击算法生成器中，产生一个控制信号，该信号在加速度信号指示超出预定水平的向内加速度的时段期间朝加速度信号的平均值收敛，控制信号以基本上恒定的速率减小， 时间，其中加速度不超过所述预定水平。 控制信号被传递到允许（15）启动安全装置（3,4）的阈值装置（19）。
-
公开(公告)号：US5779264A
公开(公告)日：1998-07-14
申请号：US798167
申请日：1997-02-10
CPC分类号： B60R21/01336 , B60R21/01 , B60R21/0132 , B60R21/0133 , G01P15/0891
摘要： A crash detector arrangement comprises a crash sensor(1) in the form of an accelerometer which provides a signal to a micro-processor(2) which uses a first algorithm to determine if the signal is representative of a crash of a predetermined severity and which consequently provides an output(8) rendering a first switch(9) conductive. The output of the accelerometer(1) is provided also to the micro-processor(2) through a high pass filter. This input to the micro-processor is processed by another, different, algorithm determined to differentiate a crash from a signal error in the accelerometer. A second output(7) is generated by the micro-processor which is used to assist in the control of a further switch(13). The two switches(9,13) are in a series connection incorporating a source of power(10) and a resistor(12). When current passes through the resistor, the safety device is activated. The second output(7) of the micro-processor(2) passes through an AND-gate(6) which also receives an input from a threshold detector(4) and from a check circuit(14).
摘要翻译： 碰撞检测器装置包括加速度计形式的碰撞传感器（1），其向微处理器（2）提供信号，微处理器（2）使用第一算法来确定信号是否代表预定严重性的碰撞，以及哪个 从而提供使第一开关（9）导电的输出（8）。 加速度计（1）的输出也通过高通滤波器提供给微处理器（2）。 该微处理器的输入由另一种不同的算法来处理，该算法被确定为将加速度计中的信号误差区分开来。 第二输出（7）由微处理器产生，微处理器用于辅助控制另外的开关（13）。 两个开关（9,13）是并联有电源（10）和电阻（12）的串联连接。 当电流通过电阻时，安全装置被激活。 微处理器（2）的第二输出（7）通过与阈值检测器（4）和检查电路（14）接收输入的与门（6）。
-
搜索结果
2 条记录 (耗时 0.015 秒)
