Gear change and start stage operation and control method for vehicles equipped with an automatic manual transmission, and transmission and starter for vehicles equipped with an automatic manual transmission.

摘要

A management and control method of the gear change and starting phases of a vehicle fitted with a manual or automated manual transmission (16), comprising the steps of: - providing a vehicle having an endothermic engine (8) with relative crankshaft (26), and an automated manual transmission (16) having a clutch, a primary shaft (28) operatively connected to the clutch (24), and a secondary shaft (32) operatively connected to the drive wheels (36) of the vehicle, wherein the primary and secondary shafts (28,32) are provided with gears (40) meshing with each other in a plurality of gears, each having its transmission ratio, the transmission ratio being equal to the ratio between the rotation speed of the primary shaft (28) and the rotation speed of the secondary shaft (32). Advantageously, the method also comprises the steps of: - providing an electric machine (44) operatively connected to the primary shaft (28) by transmission means (48), said electric machine (44) being mechanically separate from the engine (8), -performing the gear change operation according to the steps of: -placing the automated manual transmission in neutral, in which the primary shaft is mechanically disengaged from the secondary shaft, -providing for the actuation of the electric machine (44) with the clutch (24) engaged and the automated manual transmission (16) in the neutral position, in order to adapt the rotation speed of the primary shaft (28) and of the crankshaft (26) connected thereto by the clutch (24), to the rotation speed of the secondary shaft (32) depending on the gear ratio of the next gear to engage, -engaging the next gear, keeping the clutch closed.