METHOD OF DETERMINING A VALUE REPRESENTATIVE OF THE PRESSURE IN A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE

摘要

Method of determining a value representative of the pressure in a combustion chamber of an internal combustion engine, comprising the following steps: i. measuring the vibration level (2) of the internal combustion engine by means of an accelerometer placed on the engine block of the internal combustion engine; ii. integrating a value from the signal (2) provided by the accelerometer in a window (t1, t2) defined as a function of the position of the crankshaft of the internal combustion engine; iii. supplying the result of the integration (A1) as a value representative of the pressure, characterized in that the signal (2) provided by the accelerometer in step "i." is integrated while being raised to a power greater than 1 by a predetermined exponent.