Patent ID: 7637839

Claim:
A multi-speed automatic transmission adapted for a motor vehicle comprising: a transmission case; an input shaft having a first input drive gear and a second input drive gear; a first output shaft having a first output drive gear at an one end portion thereof and arranged in parallel with the input shaft; a second output shaft having a second output drive gear and arranged in parallel with the input shaft and the first output shaft; a first input driven gear rotatable on the first output shaft and engaging with the first input drive gear; a second input driven gear rotatable on the second output shaft and engaging with the second input drive gear; an output driven gear in mesh with the first output drive gear and the second output drive gear; a first planetary gear set interposed between the input shaft and the first output drive gear and arranged in coaxial with the first output shaft to change a rotational speed of the input shaft to a rotational speed of the first output drive gear, the first planetary gear set including a first sun gear, a first ring gear, a plurality of first pinions supported by a first pinion carrier and engaging with the first sun gear and the first ring gear; a second planetary gear set interposed between the input shaft and the second output drive gear and arranged in coaxial with the second output shaft to change the rotational speed of the input shaft to a rotational speed of the second output drive gear, the second planetary gear set including a second sun gear, a second ring gear, a plurality of second pinions supported by a second pinion carrier and engaging with the second sun gear and the second ring gear; and an intermediate gear arranged in coaxial with the input shaft and connecting with the first sun gear and the second sun gear, wherein the input shaft is connectable with the first ring gear through the first input drive gear and the first input driven gear and is connectable with the second pinion carrier through the second input drive gear and the second input driven gear, the first output shaft being connectable with the first pinion carrier, the second output shaft being connectable with the second ring gear, the second pinion carrier being fixable to the transmission case, the first sun gear and the second sun gear being connectable with the input shaft through the first input drive gear and the first input driven gear and through the intermediate gear, and the first sun gear and the second sun gear being fixable to the transmission case.