| 摘要 |
The present invention relates to an adaptive correction of servo activating hydraulic fluid pressure in agreement with driving force variability. In one embodiment according to the present invention, a ratio of a mass airflow of intake air admitted to an engine (Qa) and a revolution speed of a transmission output shaft (No) is calculated, and a parameter (TqSEN) is determined as a function of the ratio (Qa/No). The servo activating hydraulic fluid pressure is determined in response to this parameter. In another embodiment, a turbine shaft speed (Nt) is calculated from the output shaft speed (No) and a gear ratio (g) of a gear position established before shifting. The turbine shaft revolution speed (Nt) is used instead of the output shaft revolution speed (No) in determining a parameter (TqSEN).
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