| 摘要 |
A motor-drive transmission (7) having: a mechanical gear change (10), which is provided with a primary shaft (18), which can be connected to the crankshaft (6) of a thermal internal-combustion engine (5), with a secondary shaft (19) connected to drive wheels (3), and with a plurality of gear pairs, each of which comprises a primary gear (20), mounted on the primary shaft (18), and a secondary gear (21), which is mounted on the secondary shaft (19) and permanently meshes with the primary gear (20); a clutch (8) for connecting the primary shaft (18) of the servo gear change (10) to the crankshaft (6) of the thermal internal-combustion engine (5); a transmission shaft (12), which is angularly fixed with respect to the secondary shaft (19) for connecting the secondary shaft (19) to the drive wheels (3); and an electric machine (15) provided with a hollow shaft (24) of its own, which can be connected to the secondary shaft (19), is hollow, has an empty central channel (25) inside, and is set coaxial to and around the transmission shaft (12) so as to house inside it the transmission shaft (12) itself.
|
