| 摘要 |
An automatic transmission powertrain includes a torque converter acting as a fluid link between an engine and a transmission, a primary shift portion provided on a first shaft, a long axis of which is aligned with a long axis of an input shaft, a secondary shift portion provided on a second shaft and connected to the primary shift portion via two power transmitting paths to transmit power to an output shaft of the powertrain, a power transmitting device for transmitting rotational power of the primary shift portion to the secondary shift portion, brakes for operating operational elements of the primary shift portion and the secondary shift portion as reaction elements, clutches for selectively transmitting power to operational elements of the primary shift portion, and a non-synchronous shifting device for operating during 1⇄2, 2⇄3 and 4⇄2 shifting. |
