Gearbox controlling device for motor vehicle, has ball module with roller tracks, where each roller track is associated to one of synchronizers of gearbox and adapted according to operating phases of considered synchronizer

摘要

#CMT# #/CMT# The device (10) has a shaft (12) for changing transmission ratios, and a ball module (28) for locking the engaged transmission ratio. The ball module includes a set of roller tracks, where each roller track is associated to one of synchronizers of the gearbox and adapted according to operating phases of the considered synchronizer. Cams (20-26) are mounted on the shaft, where each cam is axially shifted with respect to each other. #CMT# : #/CMT# An independent claim is also included for a method for controlling a gearbox of a motor vehicle. #CMT#USE : #/CMT# Device for internally controlling a gearbox (claimed) of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The configuration of the controlling device enables to optimize and homogenize engagement forces of speed felt by a driver for each transmission ratio without compromising the other ratios. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a device for internally controlling a gearbox of a motor vehicle. 10 : Gearbox controlling device 12 : Shaft 20-26 : Cams 28 : Ball module 32 : Ball.