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

A family of transmissions having a plurality of family members comprising:

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

A family of multi-speed transmission mechanism, each family member comprising:

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