Torque distributing drive mechanism with ravigneaux gearset

Details Torque distributing drive mechanism with ravigneaux gearset Torque distributing drive mechanism with ravigneaux gearset

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 48/22 (2006.01)

Patent

CA 2612429

A drive axle assembly includes first and second axleshafts and a drive mechanism coupling a driven input shaft to the axleshafts. The drive mechanism includes a differential assembly, a planetary gear assembly operably disposed between the differential assembly and the first axleshafts, a transfer clutch and first and second brakes. The first brake is operable with the transfer clutch and the planetary gear assembly to increase the rotary speed of the first axleshaft which, in turn, causes a corresponding decrease in the rotary speed of the second axleshaft. The second brake is operable with the transfer clutch and the planetary gear assembly to decrease the rotary speed of the first axleshaft so as to cause an increase in the rotary speed of the second axleshaft. A control system controls actuation of both brakes and the transfer clutch.

Ensemble pont moteur comprenant un premier et un second arbres de commande, ainsi qu~un mécanisme d~entraînement couplant un arbre d~entrée entraîné aux arbres d~essieu. Le mécanisme d~entraînement se compose d~un ensemble différentiel, d~un ensemble d'engrenage planétaire disposé fonctionnellement entre l~ensemble différentiel et le premier arbre de commande, un embrayage de transfert et un premier et un deuxième freins. Le premier frein fonctionne avec l~embrayage de transfert et l~ensemble d'engrenage planétaire pour augmenter la vitesse de rotation du premier arbre de commande qui à son tour réduit de façon correspondante la vitesse de rotation du second arbre de commande. Le second frein fonctionne avec l~embrayage de transfert et l~ensemble d'engrenage planétaire pour diminuer la vitesse de rotation du premier arbre de commande, afin d'augmenter la vitesse de rotation du second arbre de commande. Un système de contrôle surveille le fonctionnement des deux freins et de l~embrayage de transfert.

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