Family of six-speed planetary transmissions having three planetary gearsets and three input torque-transmitting mechanisms

   
   

A family of multi-speed planetary transmissions has three planetary gearsets each with three planetary members and five torque-transmitting mechanisms. The transmission also has two interconnecting members, one of which interconnects a member of each of the planetary gearsets, and the other of which interconnects two members of the planetary gearsets. All of the transmission family members include one member continuously connected with a stationary member or transmission housing. In each family member, the input shaft of the transmission is selectively connectible with the planetary gearsets through three of the torque-transmitting mechanisms. The output shaft of the transmission is continuously connected with at least one member of the planetary gearset. The torque-transmitting mechanisms are selectively engaged in combinations of two to establish at least six forward speed ratios and one reverse speed ratio.

Une famille des transmissions planétaires de multi-vitesse a trois gearsets planétaires chacun avec trois membres planétaires et cinq mécanismes detransmission. La transmission a également deux membres reliants ensemble, dont un relie ensemble un membre de chacun des gearsets planétaires, et l'autre dont relie ensemble deux membres des gearsets planétaires. Tous les membres de famille de transmission incluent un membre sans interruption lié à un membre ou à un logement stationnaire de transmission. Dans chaque membre de famille, l'axe d'entrée de la transmission est sélectivement connectible avec les gearsets planétaires par trois des mécanismes detransmission. L'axe de rendement de la transmission est sans interruption relié au moins à un membre du gearset planétaire. Les mécanismes detransmission sont sélectivement engagés dans les combinaisons de deux établir au moins six rapports vers l'avant de vitesse et un rapport renversé de vitesse.

 
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