Hyundai Motor Company

Kia Motors Corporation

Il Dae Cho

Hyu Tae Shim

Tae Seok Seo

In Chan Kim

Sung Hoon Park

A powertrain may include an input shaft; a drive pulley and a driven pulley engaged to each other by a belt; a forward/backward switching mechanism provided to selectively switch a direction of power from the input shaft to the drive pulley by a plurality of friction members and transmit the power; a gear train provided to transmit the power of the input shaft to a rotation shaft of the driven pulley without passing through the drive pulley; and another friction member provided to interrupt a power transmission path of the gear train.

Continuously variable powertrain for vehicle

A continuously variable powertrain for vehicles may include an input shaft, a planetary gear train connected to the input shaft, a first clutch disposed to selectively connect rotation elements of the planetary gear set, a drive pulley disposed to receive power from the input shaft through the planetary gear set, a driven pulley connected to the drive pulley by a belt, an output shaft disposed concentrically with an axis of rotation of the driven pulley, a gear train connected between the input shaft and the output shaft in an external gear form, a second clutch disposed to transmit power from the input shaft through the gear train to the output shaft, and a third clutch disposed to transmit power from the driven pulley to the output shaft.

Growing community of inventors

Gwangmyeong-si, South Korea

Il Dae Cho