Countershaft design, nine-gear, dual-clutch transmission for use as hybrid transmission in hybrid vehicle, has input shafts coupled with fourth, third and seventh gear wheel stages for switching eighth gear

摘要

The transmission (1) has an input shaft (EW1) designed as a hollow shaft. Another input shaft (EW2) is designed as a solid shaft. One of the input shafts is coupled with a third gear wheel stage (ZP3), a sixth gear wheel stage (ZP6), and a second gear wheel stage (ZP2) for switching a first gear. The other input shaft is coupled with a fourth gear wheel stage (ZP4), the third gear wheel stage and a seventh gear wheel stage (ZP7) for switching an eighth gear. Gear wheels (Z1-Z17) form the stages, which are arranged on the input shafts and a countershaft (VW) in gear wheel planes (I-VIII). The countershaft is an output shaft.