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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)。