| 摘要 |
The invention relates to the field of monitoring glow plugs. The device (100) receives a set of engine parameters (104) to control a set of glow plugs (110 to 113). A measuring means (118) measures a set of glow plug parameters. A recording means (120) records selected glow plug parameters and associated engine parameters present at the same time, as history. A life time model computing means (122) continuously analyses the history to compute an aging factor of the glow plugs. The life time model computing means also computes remaining life time of the glow plugs depending upon the specified life time of the glow plugs and the aging factor by computing the ageing factor in dependence of at least two of the a cooling rate, a power density, a corrosion and an erosion. A warning means (124) generates a warning if the remaining life time of the glow plug is less than a pre-defined threshold.
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