| 摘要 |
PROBLEM TO BE SOLVED: To achieve cost reduction by designing the feedback compensator of a slip rotation control system so that variation of the lockup mechanism dynamic characteristic is made distinct for each constituent element. SOLUTION: A slip rotation command value calculation part 34 is equipped with a feedback compensator designed in such a way that the varying range of the lockup mechanism dynamic characteristic varying in accordance with the output rotation of a torque converter is taken into account and calculates the slip rotation command valueωSLPC upon being fed with the deviation between the actual slip rotationωSLPR and the target slip rotationωSLPT from a slip rotation deviation calculation part 33. A target converter torque calculation part 36 determines the target converter torque tCNVC to achieveωSLPC using the slip rotation gain gSLPF, while a target lockup clutch engaging capacity calculation part 38 subtracts tCNVC from the engine torque tEH to determine the target lockup engaging capacity tLUC, and this lockup engaging pressure PLUC for tLUC is sought by a lockup clutch engaging pressure command value calculation part 39.
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