| 摘要 |
PROBLEM TO BE SOLVED: To reduce a shock in timing for switching from a drive state to a driven state, when reducing generation torque of an internal combustion engine according to the establishment of a fuel cut execution condition.SOLUTION: When a fuel cut execution condition is established, before executing the fuel cut, in the case where output torque of an engine is reduced, demand torque for each cycle is set according to engine output torque at start time of a torque holding control period including the timing for the engine switching from a drive state to a driven state, and target torque of the engine at the finish time of the torque holding control period. Ignition timing of an ignition plug is controlled so that the demand torque set corresponding to the cycle can be acquired for each cycle. Thereby, even when actual torque becomes low with respect to the demand torque by an intake amount reducing greatly and the like during the torque holding period, proper demand torque with respect to the next time cycle can be acquired.SELECTED DRAWING: Figure 4 |
