Cylinder pressure parameter correction systems and methods

摘要

A system includes a net mean effective pressure (NMEP) error module, a correction determination module, a mean effective pressure (MEP) correction module, and an actuator control module. The NMEP error module determines an NMEP error for a combustion cycle of a cylinder based on an expected NMEP for the combustion cycle, a measured NMEP for the combustion cycle, and a difference between an expected change in an engine speed for the combustion cycle and a measured change in the engine speed for the combustion cycle. The correction determination module determines an offset correction and a slope correction based on the NMEP error. The MEP correction module that generates a corrected NMEP for the combustion cycle based on the measured NMEP, the offset correction, and the slope correction. The actuator control module controls an engine operating parameter based on the corrected NMEP.

主权项

1. A system comprising:
a net mean effective pressure (NMEP) error module that determines an NMEP error for a combustion cycle of a cylinder based on an expected NMEP for the combustion cycle, a measured NMEP for the combustion cycle, and a difference between an expected change in an engine speed for the combustion cycle and a measured change in the engine speed for the combustion cycle; a correction determination module that determines an offset correction and a slope correction based on the NMEP error; a mean effective pressure (MEP) correction module that generates a corrected NMEP for the combustion cycle based on the measured NMEP, the offset correction, and the slope correction; and an actuator control module that controls an engine operating parameter based on the corrected NMEP.