CONTROL ASSEMBLY FOR A ROBOTISED GEARBOX

摘要

The invention relates to a control assembly for a robotised automobile gearbox, comprising at least one actuator (A,A1,A2) for shifting and/or selecting gears, and a power electronics unit (EP) for controlling the actuator (A,A1,A2). Said actuator comprises in particular, an electric motor (M,M1,M2) and a system (ST,ST1,ST2) for transforming the rotation movement of the motor output shaft into a linear movement which is transmitted to an output element (T1, T2) of the actuator by a movement transmission device (DT,DT1,DT2) in order to drive the gearbox. Said movement transformation system (ST1,ST2) comprises a threaded shaft (10) which is coupled to an output shaft of the motor (M1,M2), and at least one travelling element (15) which is in contact with said threaded shaft (10) and which is linked to the movement transmission device (DT,DT1,DT2). The travelling element (15) of the movement transformation system (ST,ST1,ST2) which is contact with the threaded shaft (10) is a rolling element (P). The transmission device includes an elastic connection in the form of a spring (R) with axial support.