Six speed planetary transmission mechanisms with two fixed interconnections

A multi-speed transmission comprising:

• an input shaft;
• an output shaft;
• first, second and third planetary gear sets each having first, second and third members;
• said input shaft being continuously interconnected with a member of said planetary gear sets, and said output shaft being continuously interconnected with another member of said planetary gear sets;
• a first interconnecting member continuously interconnecting said first member of said first planetary gear set with said first member of said second planetary gear set;
• a second interconnecting member continuously interconnecting said second member of said first planetary gear set with said second member of said second planetary gear set;
• a first torque-transmitting mechanism selectively interconnecting a member of said first planetary gear set with a member of said third planetary gear set;
• a second torque-transmitting mechanism selectively interconnecting a member of said second planetary gear set with a member of said third planetary gear set;
• a third torque-transmitting mechanism selectively interconnecting a member of said third planetary gear set with a member of said first or second planetary gear set, said pair of members interconnected by said third torque-transmitting mechanism being different from said pair of members interconnected by said first or second torque-transmitting mechanisms;
• a fourth torque-transmitting mechanism selectively interconnecting a member of said first, second or third planetary gear set with a stationary member;
• and
• a fifth torque-transmitting mechanism selectively interconnecting a member of said first or third planetary gear set with said stationary member, said member interconnected by said fifth torque-transmitting mechanism being different from said member interconnected by said fourth torque-transmitting mechanism;
• said torque-transmitting mechanisms being engaged in combinations of three to establish at least six forward speed ratios and one reverse speed ratio between said input shaft and said output shaft.