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    • 10. 发明申请
    • METHOD FOR MONITORING AT LEAST ONE GLOW PLUG OF AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING DEVICE
    • 用于监测内燃机和对应装置的最少一个玻璃管的方法
    • US20100286895A1
    • 2010-11-11
    • US12811507
    • 2008-11-14
    • Hans-Peter BauerRainer MoritzSimon SchmittingerAndreas Reissner
    • Hans-Peter BauerRainer MoritzSimon SchmittingerAndreas Reissner
    • F02D41/22F02P19/02
    • F02P19/027F02P17/12
    • A method for monitoring at least one glow plug of an internal combustion engine in which a time-dependent variable, which characterizes the current flowing through the at least one glow plug, is compared for fault recognition to at least one time-dependent minimum and/or maximum threshold value, and a fault is recognized if the time-dependent variable is greater and/or less than the minimum and/or maximum threshold value. The method is characterized in that the first derivative of the time-dependent variable is compared to the first derivative of the maximum threshold value and the second derivative of the time-dependent variable is compared to the second derivative of the maximum threshold value, and a fault is recognized if the first derivative of the time-dependent variable is less than the first derivative the maximum threshold value, and the second derivative of the time-dependent variable is less than the second derivative of the maximum threshold value.
    • 一种用于监测内燃机的至少一个电热塞的方法,其中将表征流过所述至少一个电热塞的电流的时间变量与故障识别进行比较,以至少一个依赖于时间的最小值和/ 或最大阈值,并且如果时间因变量大于和/或小于最小和/或最大阈值,则识别故障。 该方法的特征在于,将时间因变量的一阶导数与最大阈值的一阶导数进行比较,并将时间因变量的二阶导数与最大阈值的二阶导数进行比较, 如果时间因变量的一阶导数小于最大阈值的一阶导数,并且时间因变量的二阶导数小于最大阈值的二阶导数,则识别故障。