| 摘要 |
The ambient air temperature is measured (2) and a check made to see if it is less than a minimum value (Tmin). If so the heating process for the air drawn into the induction system is activated. This is in the form of a glow plug that is supplied with current for a specific period. The required temperature value (Tmax) and the maximum time (tmax), dependent upon the initial air temperature are determined. After initialisation (7) checks are continuously made until either the maximum time or maximum temperature have been met. At this point the heating is switched off and engine ignition activated. USE/ADVANTAGE - Improved control of preheating air with safe control of heater. |
