| 摘要 |
PROBLEM TO BE SOLVED: To improve the stability of an engine rotating speed without setting the target output torque corresponding to the minimum output torque too low, even when an internal combustion engine is kept in the cold. SOLUTION: The minimum wheel torque TMIN is calculated on the basis of an engine temperature Cte after warming up as a fixed value in the parameter relating to the engine temperature in a predetermined operating condition of the internal combustion engine (step S103). Whereby the fluctuation band of the minimum wheel torque TMIN to the engine temperature can be eliminated, and the fluctuation band to a minus side with respect to the engine temperature can be reduced in calculating the target wheel torque Tdmd in a vehicle drive train corresponding to the minimum wheel torque TMIN (step S105). Whereby the excessive lowering of the engine rotating speed can be prevented in operating an accelerator pedal in the cold of the internal combustion engine, and the drivability can be improved. COPYRIGHT: (C)2003,JPO
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