Patent ID: 7004881

Claim:
A dual input clutch transmission comprising: an input shaft; an output shaft; a stationary ground member; a first selectively engageable input clutch; a second selectively engageable input clutch; a first planetary gearset having three rotatable members; a second planetary gearset having three rotatable members and one continuously stationary member, one of said three rotatable members being continuously interconnected with said output shaft; a first synchronizer clutch means for operatively selectively interconnecting said first selectively engageable input clutch with each of said rotatable members of said first planetary gearset individually; a second synchronizer clutch means for operatively selectively interconnecting said second selectively engageable input clutch with each of said rotatable members of second planetary gearset individually; a third synchronizer clutch means for operatively selectively interconnecting said ground member with each of said rotatable members of said first planetary gearset individually; a fourth synchronizer clutch means for operatively selectively interconnecting two of said rotatable members of said first planetary gearset with said output shaft; and said first selectively engageable input clutch and said first, third, and fourth of said synchronizer clutch means being engaged in combinations to establish three forward speed ratios and one reverse speed ratio between said input shaft and said output shaft, and said second selectively engageable input clutch and said second synchronizer clutch means being engaged to establish three forward speed ratios between said input shaft and said output shaft.