Family of six-speed dual-clutch transmissions having three planetary gear sets

A multi-speed transmission comprising:

• an input shaft;
• an output shaft;
• a stationary member;
• first, second and third planetary gear sets each having first, second and third members;
• a first and second input clutch connected with said input shaft;
• said second member of said second planetary gear set being continuously connected with said second input clutch;
• an interconnecting member continuously interconnecting a member of said second planetary gear set with said third member of said third planetary gear set;
• and
• eleven torque-transmitting mechanisms for selectively interconnecting said members of said planetary gear sets with said first input clutch, with said stationary member, or with other members of said planetary gear sets in pairs for common rotation, said eleven torque-transmitting mechanisms and said input clutches being engaged in combinations of at least three to establish at least six forward speed ratios and a reverse speed ratio between said input shaft and said output shaft.

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;
• a first input clutch selectively interconnecting said second member of said second planetary gear set with said input shaft;
• a first and second torque-transmitting mechanism selectively interconnecting a first member and a second member of said first planetary gear set, respectively, with said input shaft and,
• a third, fourth and fifth torque-transmitting mechanism selectively interconnecting said first, second and third members of said first planetary gear set, respectively, with said first member of said second planetary gear set and said output shaft;
• a sixth and seventh torque-transmitting mechanism selectively interconnecting said first or third member of said second planetary gear set with said first and second members of said third planetary gear set, respectively;
• an eighth and ninth torque-transmitting mechanism selectively interconnecting said second and third members of said first planetary gear set, respectively, with a stationary member;
• a tenth and eleventh torque-transmitting mechanism selectively interconnecting said first and second members of said third planetary gear set, respectively, with said stationary member;
• an interconnecting member continuously interconnecting a member of said second planetary gear set with said third member of said third planetary gear set;
• and
• said input clutches and torque-transmitting mechanisms being engaged in combinations of at least three to provide at least six forward speed ratios and a reverse speed ratio.