| 摘要 |
A compact planetary differential (10) is provided including first and second planetary sets (16, 18) each set having ring, sun, and carrier elements (26, 28, 30, 34, 36, 38), a rotary input member (12), first and second output members (20, 22) individually connected to a preselected first one of the elements of the respective planetary sets, and with preselected second ones of the elements of the respective planetary sets being connected for joint rotation. A multi-speed unit (14) always drives the output members at equal torque levels while imparting multi-speed capability thereto. The multi-speed unit is driven by the input member and drives the remaining third one of the elements of the second planetary set in at least one speed. The multispeed unit (14) preferably comprises a third planetary set (44), one brake assembly (54, 56) and a clutch assembly (102) or two brake assemblies (54, 56) connected to preselected ones of the ring, sun and/or carrier elements thereof. |
