Planetary type multi step transmission i.e. automatic transmission, for passenger car, has output shaft connected with ring gear of gear set and web of another gear set, and drive shaft connected to sun gear of former gear set

摘要

The transmission has four planetary gear sets (P1-P4) arranged in a housing (G), and a first shaft (4) connected to a ring gear of the fourth planetary gear set and a sun gear of the second planetary gear set. A drive shaft (1) is connected to a sun gear of the third planetary gear set and a second shaft (7) by a clutch (57). A third shaft (6) is connected with a ring gear of the first planetary gear set and a web of the second planetary gear set. An output shaft (2) is connected with a ring gear of the third planetary gear set and a web of the fourth planetary gear set.