グロープラグ診断方法及び車両用グロープラグ駆動制御装置,申请号JP20140554231-传众专利搜索

グロープラグ診断方法及び車両用グロープラグ駆動制御装置

申请公布号：JP5995993(B2)

申请号：JP20140554231

申请日期：2013.11.18

申请公布日期：2016.09.21

申请人：

ボッシュ株式会社

发明人：田中豊;豊島康夫;塚原修一;中村友洋

分类号：F02P19/02

主分类号：F02P19/02

摘要：Disclosed is a glow plug diagnosis method of being able to diagnose the aging or fault of a glow plug without being affected by cooling associated with air intake/exhaust or fuel injection, the method including: a step (S102) of energizing a glow plug 1 in a predetermined manner when a key switch 11 of a vehicle is turned on; and a step (S106) of measuring the resistance value of the glow plug 1 when the energization of the glow plug 1 is started, and the resistance value of the glow plug when the energization of the glow plug 1 is started and then a change in the resistance value is saturated, and of calculating a change in the resistance value over time as a resistance value gradient, in which it is determined that the glow plug 1 is normal when the resistance value gradient exceeds a predetermined first gradient reference value a, and it is determined that the glow plug 1 is faulty, and a warning lamp or the like is lighted when the resistance value gradient is less than a predetermined second gradient reference value b (S112 and S118).