Method and apparatus for calibrating the gain of a cylinder pressure sensor of an internal combustion engine

摘要

The invention relates to a method for calibrating the gain of a cylinder pressure sensor (10) of an internal combustion engine (12). The sensor gain S is identified during the compression stroke of the cylinder (14) to which the sensor (10) is applied. Thus, it is possible to apply low cost pressure sensors for measuring the pressure within a cylinder of an internal combustion engine during normal operation of the engine.