CONTINUOUSLY VARIABLE RATIO TRANSMISSION SYSTEM

摘要

A multiple-regime continuously variable ratio transmission system has a syst em input shaft (I), a system output shaft (0) and a continuously variable ratio transmission unit (variator) connected to the system input shaft and having a variator output shaft. A first mixing epicyclec gear train (P1) having input s drivably connected to the variator output shaft (V) and the system input sha ft via a first clutch (H) and a second mixing epicyclic gear train having input s drivably connected to the variator output shaft and the system input shaft h as an output (28) connected to a third epicyclic gear train (E2) having an outp ut which is selectively connectable to the to the system output shaft via a fir st braking element (L). A second braking element (B) is adapted to lock the output (28) of the second mixing epicyclic gear train in a stationary positi on.