Multi-speed transmission

1. A transmission comprising:

an input member;

an output member;

first, second and third planetary gear sets each having first, second and third members, and wherein the input member is continuously connected for common rotation with the first member of the first planetary gear set;

a first interconnecting member continuously interconnecting the third member of the first planetary gear set with the second member of the second planetary gear set;

a second interconnecting member continuously interconnecting the first member of the second planetary gear set with the third member of the third planetary gear set; and

seven torque transmitting mechanisms, and wherein four of the seven torque transmitting mechanisms are each selectively engageable to interconnect at least one of the first, second and third members of the first, second, and third planetary gear sets with at least one other of the first, second, third members of the first, second, third, and third planetary gear sets and three of the seven torque transmitting mechanisms are each selectively engageable to interconnect at least one of the first, second and third members of the first, second, and third planetary gear sets with a stationary member, and

wherein the seven torque transmitting mechanisms are selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member, a first of the seven torque transmitting mechanisms is selectively engageable to interconnect the input member and the first member of the first planetary gear set with the second member of the third planetary gear set, a second of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the first planetary gear set with the second member of the third planetary gear set, and a third of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the first planetary gear set with the first member of the second planetary gear set.

2. The transmission of claim 1 wherein a fourth of the seven torque transmitting mechanisms is selectively engageable to interconnect the first member of the second planetary gear set and the third member of the third planetary gear set with the third member of the second planetary gear set.

3. The transmission of claim 1 wherein a fourth of the seven torque transmitting mechanisms is selectively engageable to interconnect the first member of the second planetary gear set and the third member of the third planetary gear set with the third member of the first planetary gear set and second member of the second planetary gear set.

4. The transmission of claim 1 wherein a fourth of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the second planetary gear set with the third member of the second planetary gear set.

5. The transmission of claim 2 wherein a fifth of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the first planetary gear set with the stationary member.

6. The transmission of claim 5 wherein a sixth of the seven torque transmitting mechanisms is selectively engageable to interconnect the third member of the second planetary gear set with the stationary member.

7. The transmission of claim 6 wherein a seventh of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the third planetary gear set with the stationary member.

8. The transmission of claim 1 wherein the output member is continuously connected for common rotation with the first member of the third planetary gear set.

9. The transmission of claim 1 wherein the first member of the first planetary gear set, the third member of the second planetary gear set and the third member of the third planetary gear set are sun gears, the second members of the first, second and third planetary gear sets are carrier members and the third member of the first planetary gear set, the first member of the second planetary gear set and the first member of the third planetary gear set are ring gears.

10. A transmission comprising:

an input member;

an output member;

first, second and third planetary gear sets each having first, second and third members, and wherein the input member is continuously connected for common rotation with the first member of the first planetary gear set;

a first interconnecting member continuously interconnecting the third member of the first planetary gear set with the second member of the second planetary gear set;

a second interconnecting member continuously interconnecting the first member of the second planetary gear set with the third member of the third planetary gear set;

seven torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, and third members with at least one other of the first, second, third members and a stationary member, and

wherein the seven torque transmitting mechanisms are selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member, a first of the seven torque transmitting mechanisms is selectively engageable to interconnect the input member and the first member of the first planetary gear set with the second member of the third planetary gear set, and a second of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the first planetary gear set with the second member of the third planetary gear set.

11. The transmission of claim 10 wherein a third of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the first planetary gear set with the first member of the second planetary gear set.

12. The transmission of claim 11 wherein a fourth of the seven torque transmitting mechanisms is selectively engageable to interconnect the first member of the second planetary gear set and the third member of the third planetary gear set with the third member of the second planetary gear set.

13. The transmission of claim 12 wherein a fifth of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the first planetary gear set with the stationary member.

14. The transmission of claim 13 wherein a sixth of the seven torque transmitting mechanisms is selectively engageable to interconnect the third member of the second planetary gear set with the stationary member.

15. The transmission of claim 14 wherein a seventh of the seven torque transmitting mechanisms is selectively engageable to interconnect the second member of the third planetary gear set with the stationary member.

16. The transmission of claim 10 wherein the output member is continuously connected for common rotation with the first member of the third planetary gear set.

17. The transmission of claim 10 wherein the first member of the first planetary gear set, the third member of the second planetary gear set and the third member of the third planetary gear set are sun gears, the second members of the first, second and third planetary gear sets are carrier members and the third member of the first planetary gear set, the first member of the second planetary gear set and the first member of the third planetary gear set are ring gears.

18. A transmission comprising:

an input member;

an output member;

first, second and third planetary gear sets each having a sun gear, a carrier member and a ring gear, wherein the input member is continuously connected for common rotation with the sun gear of the first planetary gear set, and wherein the output member is continuously connected for common rotation with the ring gear of the third planetary gear set;

a first interconnecting member continuously interconnecting the ring gear of the first planetary gear set with the carrier member of the second planetary gear set;

a second interconnecting member continuously interconnecting the ring gear of the second planetary gear set with the sun gear of the third planetary gear set;

a first torque transmitting mechanism selectively engageable to interconnect the input member and the sun gear of the first planetary gear set with the carrier member of the third planetary gear set;

a second torque transmitting mechanism selectively engageable to interconnect the carrier member of the first planetary gear set with the carrier member of the third planetary gear set;

a third torque transmitting mechanism selectively engageable to interconnect the carrier member of the first planetary gear set with the ring gear of the second planetary gear set and the sun gear of the third planetary gear set;

a fourth torque transmitting mechanism selectively engageable to interconnect the ring gear of the second planetary gear set and the sun gear of the third planetary gear set with the sun gear of the second planetary gear set;

a fifth torque transmitting mechanism selectively engageable to interconnect the carrier member of the first planetary gear set with a stationary member;

a sixth torque transmitting mechanism selectively engageable to interconnect the sun gear of the second planetary gear set with the stationary member;

a seventh torque transmitting mechanism selectively engageable to interconnect the carrier member of the third planetary gear set with the stationary member, and

wherein the torque transmitting mechanisms are selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member.