Seven-speed planetary transmissions with a stationary interconnection

摘要

The family of seven-speed transmissions has six torque transmitting clutches (50,52,56,58,59) which provide interconnection between three gear sets (20,30,40), two fixed interconnections, an input shaft (17), an output shaft (19) and a transmission housing (60). The torque transmitting clutches operate in combinations of two to establish at least seven forward speed ratios and a reverse speed ratio.