| 摘要 |
The invention relates to an automatic transmission and a method for controlling the same. …<??>On an input and an output shafts (6, 7) of the transmission, there are provided a plurality of gear pairs (61, 71, ...) which have different reduction ratios. One of the gears (65) of the gear pair (65, 75) having the smallest reduction ratio is operably connected with the input shaft (6) through a multi-disk clutch (19) and the torque transmitted from the input shaft (6) to the gear can be controlled by adjusting the thrusting force applied to the clutch (19). When the selection of the gear pair is changed, the gear pair under operation at present is brought into the neutral condition and at the same time, the thrusting force of the clutch (19) is increased. Thereby, the torque of the input shaft (6) is transmitted to the output shaft (7) through the clutch (19) and a rotational synchronism of the input and output shafts is advanced by adjusting the thrusting force. When the rotational synchronism is completed, the gear pair to be selected is brought under the operation. |
