Patent ID: 8764598

Claim:
A continuously variable transmission comprising: a shift belt apparatus; and a forward/reverse control apparatus; wherein the forward/reverse control apparatus comprises a planetary gear set including first and second planetary gear sets, a first clutch, and first and second brakes; and wherein the planetary gear set includes a first rotation element directly connected to an input shaft so as to be always operated as an input element, a second rotation element selectively connected to the input shaft through the first clutch so as to be operated as a selective input element and selectively connected to a transmission housing through the second brake so as to be operated as a selective fixed element, a third rotation element directly connected to an output shaft so as to be always operated as an output element, and a fourth rotation element selectively connected to the transmission housing through the first brake so as to be operated as a selective fixed element; wherein the first planetary gear set is provided with a first sun gear, a first planet carrier, and a first ring gear, and the second planetary gear set is provided with a second sun gear, a second planet carrier, and a second ring gear; wherein the first planet carrier and the second ring gear are directly connected by a first rotation member, and the first ring gear and the second planet carrier are directly connected by a second rotation member; and wherein the first sun gear operates as the first rotation element, the first planet carrier and the second ring gear operate as the second rotation element, the first ring gear and the second planet carrier are operated as the third rotation element, and the second sun gear operates as the fourth rotation element.