SYNCHRONIZATION MODULE UNDER TORQUE FOR GEARBOX AND COUPLING METHOD ASSOCIATED THEREWITH

摘要

The invention concerns a synchronization module (17) enabling an upshift transmission ratio of a gearbox to be coupled under torque. It comprises a screw (5)-and-nut (6) type connection coupled to a hydraulic actuator (11) whereof the pressure of the fluid thereof is controlled by a regulating device (13). The input shaft (1) is coupled in rotation to the screw (5) via a sliding groove (3) coupling. The nut (6) is coupled in rotation to the output shaft (8). The inventive synchronization module is particularly designed for automatic planetary train gearboxes and standard gear train gearboxes.