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

A family of multi-speed transmissions mechanisms, each family member comprising:

• an input shaft;
• an output shaft;
• a transmission housing;
• a planetary gear arrangement including 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 interconnecting member continuously interconnecting said first member of said first planetary gearset and said first member of said second planetary gearset;
• a second interconnecting member continuously interconnecting said second member of said first planetary gearset and said second member of said second planetary gearset;
• a third interconnecting member continuously interconnecting said third member of said second planetary gearset and said first member of said third planetary gearset;
• said second member of said third planetary gearset being continuously interconnected with said transmission housing;
• said output shaft being continuously interconnected with at least one member of said planetary gearsets;
• and five selectively operable torque transmitting mechanisms consisting of at least first, second, and third rotating type torque transmitting mechanisms that are individually engageable to selectively interconnect said input shaft with at least one of said members of said planetary gearsets, fourth stationary type torque transmitting mechanism, and fifth torque transmitting mechanism that is either a rotating type torque transmitting mechanism or a stationary type torque transmitting mechanism, said five torque transmitting mechanisms being operated in combinations of two to establish at least six forward speed ratios and one reverse speed ratio in said planetary gear arrangement between said input shaft and said output shaft.

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

• an input shaft;
• an output shaft;
• a transmission housing;
• a planetary gear arrangement including 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 interconnecting member continuously interconnecting said first member of said first planetary gearset and said first member of said second planetary gearset;
• a second interconnecting member continuously interconnecting said second member of said first planetary gearset and said second member of said second planetary gearset;
• a third interconnecting member continuously interconnecting said third member of said second planetary gearset and said first member of said third planetary gearset;
• said second member of said third planetary gearset being continuously interconnected with said transmission housing;
• said output shaft being continuously interconnected with at least one member of said planetary gearsets;
• said input shaft being connectible with members of said planetary gearsets through torque transmitting mechanisms;
• five selectively operable torque transmitting mechanisms selectively connecting members of said planetary gearsets with said input shaft, said transmission housing, or other members of said planetary gearsets;
• and
• said five selectively operable torque transmitting mechanisms being operated in combinations of two to establish at least six forward speed ratios and a reverse speed ratio between said input shaft and said output shaft.