| 摘要 |
A method is provided that includes, but is not limited to estimating the temperature (TGP,est) of the glow-plug (GP) in accordance with a first model of the glow-plug (GP) as a function of the detected values of the glow-plug voltage and current (VGP, IGP) and the sensed values of some input variables, such as the engine speed (ωE) and the engine temperature (TE), determining, in accordance with a second predetermined model of the glow-plug (GP), a desired value of the voltage (VGP,des) or power (PGP,des) to be supplied to the glow-plug (GP), as a function of a desired value of the glow-plug temperature (TGP,des), the estimated glow-plug temperature (TGP,est), and the sensed values of the input variables, and varying the duty-cycle of a pulse-width-modulated voltage (VPWM) applied to the glow-plug (GP), as a function of the calculated value of said desired voltage (VGP,des) or power (PGP,des). |
