Injection valve calibrating method for use during operation of internal combustion engine, involves enabling additional control for calibrating injection valve temporally from top-dead centre in phase of gas exchange cycle

摘要

The method involves injecting fuel into a combustion chamber (100) of an internal combustion engine for operating the engine by a control of an injection valve (40). An additional control is provided for calibrating the injection valve. The control duration of the additional control is varied till minimum control duration is determined, in order to change operating characteristics of the engine. The additional control for calibrating the injection valve is enabled temporally from a top-dead centre in a phase of a gas exchange cycle. An independent claim is also included for a device for operating an internal combustion engine with a calibration module for calibrating an injection valve.