摘要:
The invention concerns a process for electrical feeding of a heat-engine glowplug, including a step (27) of heating of the glowplug, in which the glowplug is fed by an electrical feed power, characterised in that the heating step (27) is followed by a final step of controlled cooling of the glowplug, in the course of which the mean electrical feed power of the glowplug is decreasing until a zero value has been attained in accordance with a temporal profile (34) of monotonic decrease, starting from a value, the so-called final nominal mean power, such that the theoretical straight line passing through the point (35) of the temporal profile (34) corresponding to the final nominal mean power and the point (36) of the temporal profile (34) corresponding to the zero value exhibits a slope amounting to between -150W/s and -0.1W/s.
摘要:
The invention relates to a method for controlling the power supply of a pre-heat plug in an internal combustion engine in order to reach an ignition temperature for restarting the engine after it has stopped. According to the invention, the temperature of the pre-heat plug is determined using a first mathematical model and according to the elapsed engine-stop time, and the additional energy to be supplied to the pre-heat plug for reaching the ignition temperature is determined using a second mathematical model and according to the temperature of the pre-heat plug.
摘要:
According to the present invention, a glow plug (100) for a diesel engine is provided which includes a heating element (22), a semiconductor chip (61) that includes therein a power transistor, and a heat sink (50) .The heating element (22) is configured to generate heat when supplied with electric power, so as to heat the air-fuel mixture within a cylinder of the diesel engine. The power transistor in the semiconductor chip (61) is configured to be selectively turned on and off so as to intermittently supply electric power to the heating element. The heat sink (50) serves to dissipate heat generated by operation of the semiconductor chip (61) so as to prevent the semiconductor chip from being damaged due to the heat. With such a configuration, it becomes possible to integrate the semiconductor chip (61) into the glow plug (100) while providing the glow plug with a capability of effectively dissipating the heat generated by operation of the semiconductor chip.