| 摘要 |
The object of the invention is to impart a suitable target slip amount depending on a state of change in an output from a driving power source (engine 2) to a torque converter 1, while simplifying control. A controller has an input torque change rate detection means (step S1 of Fig. 2 ) for detecting an engine torque change rate ”Te that is the output, and a target slip addition amount calculation means (step S2 of Fig. 2 ) for calculating a negative value as an addition amount ”slip, when the engine torque change rate ”Te is less than or equal to a predetermined value that is a positive value, and for calculating a positive value as the addition amount ”slip, when the engine torque change rate is greater than the predetermined value. The controller 10 is configured to set the target slip amount TSLIP of a lockup clutch 8 by arithmetic processing that integrates the addition amount ”slip, determined based on the detected engine torque change rate ”Te, every control period (step S3 of Fig. 2 ). |
