System for detecting and adjusting for variation in cylinder pressure in internal combustion engine
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United States of America Patent
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Jan 4, 1994
Grant Date -
N/A
app pub date -
Jul 31, 1990
filing date -
Jul 31, 1989
priority date (Note) -
Expired
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Abstract
A cylinder pressure detecting system includes a plurality of pressure sensors, each of which is provided for monitoring pressure in one of plurality of cylinders. The system performs data sampling of detection values produced by one of the pressure sensors 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 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.
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