| 摘要 |
A method for closed-loop control of the surface temperature of a glow plug. A heating current flowing through the glow plug and a voltage applied to the glow plug are measured, and a calculation rule is used, which assigns a value of the surface temperature to a value pair formed of a value of the heating current and a value of the voltage. The calculation rule takes into account the influence of a changing temperature of a feed line of the heating resistor on the relationship between the heating current measured at a given voltage and the surface temperature of the glow plug. Also disclosed is a method for controlling the surface temperature of a glow plug, in which a factor of the control algorithm is calculated by using a correction term, which takes into account the heat dissipation from a glow tip to cooler parts of the glow plug.
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