Calibration and monitoring device for internal combustion engine, uses acoustic sensors and crankshaft position sensors to regulate fuel injection and crankshaft position

摘要

At least one acoustic sensor (2a, 2b) is used to detect one or more parameters relating to the noise generated during the combustion process. A control unit (3) receives signals from the sensors and information concerning the position of the camshaft in the engine, in order to set the fuel injection intervals and the crankshaft position at the time of fuel injection. DETAILED DESCRIPTION - An independent claim is also included for the calibration and monitoring method using this device. MECHANICAL ENGINEERING - The acoustic sensors utilise the noise amplitude or frequency.