| 摘要 |
PROBLEM TO BE SOLVED: To provide an internal combustion engine control unit capable of learning an abnormal combustion occurrence probability per operating region.SOLUTION: An internal combustion engine control unit detects knocking using a cylinder internal pressure sensor. The internal combustion engine control unit includes a learning map that has ignition timing and an intake air quantity as map axes, that includes a plurality of grid points, and in which learned values of a knocking occurrence probability correspond to the respective grid points in an updatable manner. The control unit learns the knocking occurrence probability using the learning map during operation of an internal combustion engine. This learning is weighting learning for updating the learned values of learning target grid points using a weight win response to a distance between the learning target grid points and learning data on the learning map. Using a variable qindicating whether knocking occurs by 1 or 0 as the learning data, weighted averaging is performed by adding the weight wto the variable q, thereby calculating the learned values of the knocking occurrence probability. |
