| abstract |
The 7-speed transmission has two input shafts 23 and 24, the z. B. can be connected to a drive motor via double clutches. The gearwheels 3c and 3d enable a connection (not shown) to drive wheels from two countershafts 21 and 22. The gears 3b1, 4a1 and 4a2 mesh with the gears 3.1, 4.1 and 4.2. A reverse gear is generated in that, with the shift element 34b and the driven shaft 23 closed, an inverse rotation of shaft 24 is achieved via the gears 3.1, 3b1, 4b3, 4a3 and 4.3, which is then transmitted to the shaft 21 with the shift element 37 closed to the right. Thus, only one gear 4b3 and one shift element 34b are required for the reverse gear; all other gears and shift elements are also required for forward gears. A countershaft 50 enables central synchronization and speed-adapted operation of a starter generator 60 via synchronizing elements 36 and 36a. |