Patent ID: 7704182

Claim:
An automatic transmission, comprising: an input shaft; an output portion, the output portion being provided so as to be coaxial with said input shaft; a transmission case; a first single-pinion-type planetary gear set including a first sun gear, a first carrier, and a first ring gear; a second single-pinion-type planetary gear set including a second sun gear, a second carrier, and a second ring gear; a third single-pinion-type planetary gear set including a third sun gear, a third carrier, and a third ring gear; a first clutch operative to connect or disconnect said input shaft with said second sun gear; a second clutch operative to connect or disconnect said first ring gear with said third carrier; a third clutch operative to connect or disconnect said input shaft with said third sun gear; a first brake operative to connect or disconnect said third sun gear with said transmission case; and a second brake operative to connect or disconnect said third carrier with said transmission case, wherein said first sun gear and said transmission case, said first carrier and said input shaft, said second ring gear and said third carrier, and said third ring gear and said second carrier and said output portion are respectively configured to be always in a connection state, and a first speed is established by said first clutch and said second brake that are respectively selected in a connection state, a second speed is established by said first clutch and said first brake that are respectively selected in a connection state, a third speed is established by said first clutch and said third clutch that are respectively selected in a connection state, a fourth speed is established by said first clutch and said second clutch that are respectively selected in a connection state, a fifth speed is established by said second clutch and said third clutch that are respectively selected in a connection state, and a sixth speed is established by said second clutch and said first brake that are respectively selected in a connection state.