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1. 发明授权

US5363302A Power rate system and method for actuating vehicle safety device 失效
标题翻译：用于启动车辆安全装置的动力系统和方法
公开(公告)号：US5363302A
公开(公告)日：1994-11-08
申请号：US709891
申请日：1991-06-04
申请人： Jace L. Allen , Tony Gioutsos
发明人： Jace L. Allen , Tony Gioutsos
IPC分类号： B60R21/01 , B60R21/32
CPC分类号： B60R21/0133 , B60R21/0132 , B60R21/01336
摘要： A system and method for determining when a vehicle safety device should be actuated includes a sensor whose analog output is filtered and then sampled to provide acceleration data. The acceleration data is integrated to obtain a value representative of vehicle velocity V. Consecutive values of the sampled data are also stored in a RAM and thereafter totaled or averaged to provide at least two acceleration values for calculating vehicle jerk and the square of vehicle acceleration. One of the acceleration values is added to the negative value of another of the acceleration values to obtain an approximation of the slope, or jerk J, of the data; and one of the acceleration values is squared to provide a squared acceleration value A.sup.2. The jerk J is then multiplied by the velocity V to obtain the velocity-jerk product, V*J, which is subsequently added to the squared acceleration value A.sup.2 to obtain a value proportional to the rate of change of power for the sensor's seismic mass. The rate of change of power value is then compared with a threshold value therefor, and the vehicle safety device is actuated when the rate of change of power value exceeds this threshold.
摘要翻译：用于确定车辆安全装置什么时候应被致动的系统和方法包括其模拟输出被滤波然后被采样以提供加速度数据的传感器。加速度数据被积分以获得表示车辆速度V的值。采样数据的连续值也存储在RAM中，然后总计或平均以提供用于计算车辆冲击和车辆加速度的平方的至少两个加速度值。将加速度值中的一个加到另一个加速度值的负值中，以获得数据的斜率或加速度J的近似值; 并且其中一个加速度值被平方以提供平方加速度值A2。然后将冲击力J乘以速度V以获得随后加到平方加速度值A2中的速度加速度乘积V * J，以获得与传感器的地震质量的功率变化率成比例的值。然后将功率值的变化率与其阈值进行比较，并且当功率值的变化率超过该阈值时，启动车辆安全装置。

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