Family of multi-speed power transmissions with three gearsets

   
   

A family of power transmissions, which are individually employed in a powertrain, include three planetary gearsets and five torque-transmitting mechanisms. The torque-transmitting mechanisms are engaged in combinations of two to establish a reverse speed ratio and at least six forward speed ratios between a transmission input shaft and a transmission output shaft. Each of the family members has a member of a first planetary gearset continuously connected with a member of the second planetary gearset, another member of the second planetary gearset continuously connected with a member of the third planetary gearset, and a third member of the second planetary gearset being continuously connected with a transmission housing. The input shaft and output shaft are continuously connected with at least one respective member of the planetary gearsets. At least two members of the planetary gearsets are non-continuously connected members. These members are components of the first or third planetary gearsets.

Una familia de las transmisiones de energía, que se emplean individualmente en un powertrain, incluye tres gearsets planetarios y cinco mecanismos esfuerzo de torsio'n-que transmiten. Los mecanismos esfuerzo de torsio'n-que transmiten se contratan a combinaciones de dos establecer un cociente reverso de la velocidad y por lo menos seis cocientes delanteros de la velocidad entre un eje de la entrada de la transmisión y un eje de salida de la transmisión. Cada uno de los miembros de la familia tiene un miembro de un primer gearset planetario conectado continuamente con un miembro del segundo gearset planetario, otro miembro del segundo gearset planetario conectado continuamente con un miembro del tercer gearset planetario, y un tercer miembro del segundo gearset planetario que es conectado continuamente con una cubierta de la transmisión. El eje de la entrada y el eje de salida están conectados continuamente con por lo menos un miembro respectivo de los gearsets planetarios. Por lo menos dos miembros de los gearsets planetarios son miembros non-continuously conectados. Estos miembros son componentes de los primeros o terceros gearsets planetarios.

 
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