System for detecting cylinder pressure in internal combustion engine.

摘要

A cylinder pressure detecting system includes a plurality of pressure sensors (20a-20d), each of which is provided for monitoring pressure in one of plurality of cylinders. The system performs data sampling of detection values provided by one of the pressure sensors (20a-20d) corresponding to a cylinder in an intake stroke, and compares each of the sampled detection values and a predetermined reference minimum value to respectively set differences therebetween as offset correction values. These processes are performed for the respective cylinders. The detection values of the pressure sensors (20a-20d) for the respective cylinders are corrected on the basis of the offset correction values so that the detection values detected by the respective pressure sensors coincide with each other.