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    • 2. 发明授权
    • System for monitoring the sensor responsive to a periodic condition in
an internal combustion engine
    • 用于响应于内燃机中的周期性状况来监测传感器的系统
    • US4574265A
    • 1986-03-04
    • US481859
    • 1983-04-04
    • Gunther KaiserWerner Nitschke
    • Gunther KaiserWerner Nitschke
    • G01D1/18F02B77/08F02D45/00G01D1/12G01D21/00G01L23/24G05B23/02B60Q1/00
    • F02D41/222F02D2200/0406F02D2250/14Y02T10/40
    • A sensor for the variable underpressure in the intake manifold of an engine produces a digital output signal which is sampled at intervals of one half of the period of pressure variation or an odd multiple of such half period, as timed in synchronism with the crankshaft revolution in a phase relation designed to intercept maximum and minimum values of pressure. The two most recent samples are stored in a shift register and their difference is formed by digital subtraction, compensated for changes of sign in successive difference operations to provide an absolute difference value output. The latter is then provided to a threshold stage which provides an output signal if the difference value does not reach a predetermined threshold. The signal of the threshold stage is integrated before it is used to produce an alarm indication or a corrective control function. When such an indication is produced, the value of pressure measured by the sensor is referred to in order to determine whether the malfunction relates to the communication of the vacuum to the sensor or to a defect in the sensor itself.
    • 用于发动机的进气歧管中的可变负压的传感器产生数字输出信号,该数字输出信号以压力变化周期的一半或这样的半周期的奇数倍的间隔采样,如与曲轴转速同步的定时 相位关系设计用于拦截压力的最大和最小值。 两个最新的样本存储在移位寄存器中,它们的差异由数字减法形成,补偿连续差分运算中的符号变化,以提供绝对差值输出。 然后将后者提供给阈值级,如果差值未达到预定阈值则提供输出信号。 阈值级的信号在用于产生报警指示或校正控制功能之前被集成。 当产生这样的指示时,参考由传感器测量的压力值,以便确定故障是否与真空与传感器的通信或传感器本身的缺陷有关。
    • 10. 发明授权
    • Method of operating a safety device for vehicle occupants
    • 操作车辆安全装置的方法
    • US5068640A
    • 1991-11-26
    • US466301
    • 1990-04-04
    • Wilfried BurgerWerner NitschkePeter TauferHugo Weller
    • Wilfried BurgerWerner NitschkePeter TauferHugo Weller
    • B60R21/16B60R21/01B60R22/46
    • B60R21/017Y10T307/799Y10T307/858
    • A safety device for vehicle occupants has an operational voltage source, typically the vehicle's battery, and a storage device for electrical energy, typically a capacitor. Several tripping devices, typically ignition tablets, are coupled to the storage device and/or the operational voltage source, for actuating inertial restraining devices, such as airbags, belt tighteners or the like. If the storage device fails, each tripping device is connected for a specified period of time to the operational voltage source by a respective switch. Each switch is triggered by an evaluating device. Therefore, if the storage device fails, as long as the operational voltage source is connected to the safety device, each tripping device and, therefore, inertial restraining device can be actuated.
    • PCT No.PCT / DE88 / 00372 Sec。 371日期1990年04月4日 102(e)日期1990年4月4日PCT提交1988年6月23日PCT公布。 出版物WO89 / 04779 日期1989年6月1日。用于车辆乘员的安全装置具有操作电压源,通常为车辆电池,以及用于电能的存储装置,通常为电容器。 几个跳闸装置,通常是点火片,被耦合到存储装置和/或操作电压源,用于致动惯性约束装置,例如安全气囊,皮带紧固器等。 如果存储设备故障,则每个跳闸装置通过相应的交换机连接指定的时间段到操作电压源。 每个开关由评估装置触发。 因此,如果存储装置发生故障,只要操作电压源连接到安全装置,则可以启动每个跳闸装置以及因此的惯性约束装置。