| 摘要 |
PROBLEM TO BE SOLVED: To drive an engine by fuel injection quantity and at ignition timing in consideration of frictional change due to engine temperature and a working state of auxiliary equipment, converge engine speed at the time of idling to target engine speed and have it speedily follow a load change. SOLUTION: A correction delivery ratio LOA is computed by adding a value multiplying a added value of an auxiliary drive torque delivery ratio corrected amount LOHOKI and a standard friction delivery ratio corrected amount LOTW by a rotation correction coefficient KNE to a basic delivery ratio LOCL against engine speed N in a state where accelerator openingαis O at the time of setting a basic delivery ratio LOMAP from the accelerator opening a and the engine speed N and setting the auxiliary drive torque delivery ratio corrected amount LOHOKI and the standard friction delivery ratio corrected amount LOTW. The one which is larger of the basic delivery ratio LOMAP and the correction delivery ratio LOA is adopted as a delivery ratio LO by comparing the basic delivery ratio LOMAP and the correction delivery ratio LOA with each other, fuel injection control and ignition timing control are carried out in accordance with this delivery ratio, and a converging property and a flow-up property against target engine speed NT of engine speed at the time of idling are improved.
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