Control method of shifting gear in an automatic manual transmission

摘要

A control method of shifting gear in an automatic manual transmission (6) to pass from a current gear (A) to a successive gear (B); the automatic gear transmission (6) comprises a gearbox (7), which is provided with at least one primary shaft (15) and at least one secondary shaft (17) connected to driving wheels (3), and at least one clutch (16), which is interposed between the primary shaft (15) of the gearbox (7) and a drive shaft (5) of an engine (4); the control method comprises the steps of: determining, when the clutch (16) is at least partially closed, a target torque (TC-TAR) that has to be transmitted through the clutch (16); determining, when the clutch (16) is at least partially closed, a rotation speed target (ωE-TAR) of the drive shaft (5) of the engine (4); and determining a target engine torque (TE-TAR) of the engine (4) according to the target torque (TC-TAR) that has to be transmitted through the clutch (16) and according to the rotation speed target (ωE-TAR) of the drive shaft (5) of the engine (4).