| 摘要 |
PURPOSE:To enable a glow plug to be continuously electrified even after an engine is started, by charging the second capacitor from the time of starting the engine to be operated and transferring this electric charge to a capacitor imitating a temperature of the glow plug when the engine is stopped. CONSTITUTION:The second capacitor, charged from a point of time when an alternator becomes a generating condition, is provided independently of a capacitor 8 imitating the temperature of a glow plug. When an engine is stopped, an electric charge of the second capacitor 27 is transferred to the imitating capacitor 8 whose voltage has dropped by this time approaching to 0V in a curve similar to the natural cooling curve of the glow plug. In this way, instantaneously applying the voltage, corresponding to the temperature of the glow plug when it receives heat, to the capacitor 8, even if a key switch 2 is again turned on, a time of electrifying the glow plug 14 is prevented from becoming excessive, and disconnection of the glow plug due to its overheat can be prevented. |
