| 摘要 |
PROBLEM TO BE SOLVED: To obtain a signal corresponding to ideal cylinder intake volume in a D-JETRONIC system. SOLUTION: An arithmetic means 22 calculates a delay processing value for a detected value of an intake pipe pressure. On the other hand, an arithmetic means 23 calculates a volumetric flow rate at a throttle valve portion based on an accel-opening, or a throttle valve opening. An arithmetic means 24 calculates a one-time delay processing value taking into consideration a delay of transient intake pipe pressure for the volumetric flow rate. An arithmetic means 25 calculates a two-times delay processing value so that a delay processing value and a phase of said detected value are equal to those of the one-time delay processing value. Then, an arithmetic means 26 calculates the signal corresponding to the cylinder intake volume by correcting the delay processing value for the detected value based on the ratio of the one-time delay processing value to the two-times delay processing value.
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