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2. 发明授权

US5157268A Apparatus for triggering a passive safety device for protecting passengers in a vehicle 失效
标题翻译：用于触发用于保护车内乘客的被动安全装置的装置
公开(公告)号：US5157268A
公开(公告)日：1992-10-20
申请号：US625741
申请日：1990-12-11
申请人： Hans Spies , Alfons Woehrl , Peter Hora , Guenther Fendt
发明人： Hans Spies , Alfons Woehrl , Peter Hora , Guenther Fendt
IPC分类号： B60R21/16 , B60R21/01 , H01H35/14
CPC分类号： B60R21/0133 , B60R21/0132 , B60R2021/0011 , B60R2021/01322
摘要： A passive safety device (62) is triggered for protecting vehicle passengers in the event of a collision. The output signals of a signal acceleration sensor (1) are integrated to form a signal which triggers the deployment of the safety device when a threshold value for the integrated signal is exceeded and simultaneously additional criteria are met. These conditions are met in a simple circuit with a single acceleration sensor (1), so that the entire apparatus including the safety device (62) can be installed compactly in a steering wheel of a motor vehicle. In addition to a first signal evaluation channel in which the sensor signal is integrated once, there is at least one second signal evaluation channel including two integrators (20) and (23) in which the sensor signal is integrated twice to provide a distance signal that is evaluated by a further threshold value switch (24). The safety device (62) is only triggered if both the singly integrated signal and the doubly integrated signal exceed prescribed thresholds within a prescribed time period. Additionally, a rear collision impact recognition circuit and a hammer blow impact recognition circuit (31 to 36; 41, 28) is provided to block the triggering of the safety device. A rest circuit is also provided.
摘要翻译：被动安全装置（62）被触发以在碰撞的情况下保护车辆乘客。信号加速度传感器（1）的输出信号被积分以形成当超过积分信号的阈值并且同时满足附加标准时触发安全装置展开的信号。在具有单个加速度传感器（1）的简单电路中满足这些条件，使得包括安全装置（62）的整个设备可以紧凑地安装在机动车辆的方向盘中。除了传感器信号被集成一次的第一信号评估通道之外，还存在至少一个第二信号评估通道，其包括两个积分器（20）和（23），其中传感器信号被集成两次以提供距离信号，通过另外的阈值开关（24）来评估。只有在单一积分信号和双重积分信号在规定时间内超过规定的阈值时，才触发安全装置（62）。此外，提供后碰撞碰撞识别电路和锤击冲击识别电路（31〜36; 41,28）以阻止安全装置的触发。还提供休息电路。

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