Family of multi-speed transmission mechanisms with three input clutches and three planetary gearsets

A family of transmissions mechanisms having at least six forward speeds comprising:

• an input shaft;
• an output shaft
• a transmission housing;
• a first planetary gearset having a first member, a second member, and a third member;
• a second planetary gearset having a first member, a second member, and a third member;
• a third planetary gearset having a first member, a second member, and a third member;
• said first member of said first planetary gearset being continuously interconnected with said first member of said second planetary gearset;
• said second member of said first planetary gearset being continuously interconnected with said first member of said third planetary gearset;
• said second member of said second planetary gearset being continuously interconnected with said second member of said third planetary gearset;
• said third member of said first planetary gearset being continuously interconnected with said transmission housing;
• said output shaft being continuously interconnected with a member of a group consisting of one of said continuously interconnected members of said second planetary gearset, one of said continuously interconnected members of said third planetary gearset, said third member of said second planetary gearset, and said third member of said third planetary gearset;
• and at least one member of a group consisting of said third member of said second planetary gearset and said third member of said third planetary gearset being non-continuously interconnected with other members of said planetary gearsets;
• a first torque transmitting mechanism selectively interconnecting said input shaft with a member of a group consisting of said first member of said first planetary gearset and said third member of said second planetary gearset;
• a second torque transmitting mechanism selectively interconnecting said input shaft with said continuously interconnected members of said second planetary gearset and said third planetary gearset;
• a third torque transmitting mechanism selectively interconnecting said input shaft with a member of a group consisting of one of said noncontinuously interconnected members, said continuously interconnected members of said first planetary gearset and said second planetary gearset, and said continuously interconnected members of said first planetary gearset and said third planetary gearset;
• a fourth torque transmitting mechanism selectively interconnecting a member of a group consisting of said transmission housing and said interconnected members of said first planetary gearset and said second planetary gearset with a member of a group consisting of said noncontinuously interconnected members, said continuously interconnected members of said second planetary gearset and said third planetary gearset, and said continuously interconnected members of said first planetary gearset and said third planetary gearset;
• a fifth torque transmitting mechanism selectively interconnecting a member of a group consisting of said transmission housing and said continuously interconnected members of said first planetary gearset and said third planetary gearset with a member of a group consisting of said noncontinuously interconnected members, said output shaft, said continuously interconnected members of said first planetary gearset and said second planetary gearset, and said continuously interconnected members of said second planetary gearset and said third planetary gearset;
• and
• said torque transmitting mechanisms being selectively engaged in combinations of two to establish at least six forward speed ratios and one reverse speed ratio between said input shaft and said output shaft.

A family of multi-speed transmission mechanisms wherein each family member comprises:

• an input shaft;
• an output shaft;
• a transmission housing;
• first, second, and third planetary gearsets each including first, second, and third members, said first member of said first planetary gearset being continuously interconnected with said first member of said second planetary gearset through a first interconnecting member, said second member of said first planetary gearset being continuously interconnected with said first member of said third planetary gearset through a second interconnecting member, said second member of said second planetary gearset being continuously interconnected with said second member of said third planetary gearset through a third interconnecting member, said third member of said first planetary gearset being continuously interconnected with said transmission housing, said output shaft being continuously interconnected with at least one member of one of said planetary gearsets;
• said input shaft being not continuously interconnected with any member of said planetary gear sets;
• five selectively engageable torque transmitting mechanisms connecting members of said planetary gear sets with the transmission housing, input shaft, or other members of said planetary gear sets;
• and
• said torque transmitting mechanisms being selectively engaged in combinations of two to establish at least six forward speed ratios and one reverse speed ratio between said input shaft and said output shaft.