| 摘要 |
PROBLEM TO BE SOLVED: To calculate the cylinder intake air capacity of an engine with high accuracy. SOLUTION: A mass air capacity Cc sucked in a cylinder is calculated while calculating a mass air capacity Cm in a manifold part by balance calculation of an inflow amount and an outflow amount of the air to the manifold part, on the other hand, an air capacity (shaded area in drawing) for a volume of a cylinder communicated to the manifold part, corresponding to a crank angle position in stopping of the engine is excessively calculated when the engine is stopped as the mass air capacity Cm in the manifold part by the balance calculation, whereby the mass air capacity Cm in the manifold part can be correctly recalculated in stopping the engine by performing the correction by subtracting the excess air capacity, and an initial value of the mass air capacity Cm in the manifold part in restarting can be calculated on the basis of the obtained value.
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