Speed ratio changing method for e.g. hybrid vehicle, involves controlling electrical machine for inducing torque on main shaft to produce rotation in direction same as that of vector resulting from natural torque of main shaft

摘要

The method involves connecting a sleeve to a secondary shaft (11) meshed in receiver jaw clutches that are connected to a main shaft (8) in a turning phase, where the clutches have a beveled tooth comprising tooth sectors respectively form angles. An electrical machine (12) is controlled by a control unit (20) for inducing torque on the main shaft to produce rotation in a direction same as that of a vector resulting from natural drag torque of the main shaft. A steering wheel (10) is driven by the secondary shaft. An independent claim is also included for a gear box for a vehicle.