KR970075533A - Continuously variable transmission for vehicles - Google Patents

Abstract

A torque converter that receives power from an engine and converts the torque into torque so as to further improve fuel economy and power performance of the engine while realizing a driving pulley having a variable outer diameter and a driven pulley connected by a belt, A forward / reverse rotation control means connected to the input side by a reduction gear and selectively operating a friction member to determine a forward / backward direction of the vehicle and outputting the determined forward / reverse direction to a drive pulley; And a longitudinal deceleration means for driving the drive shaft mounted on both sides by decelerating the output when transmitted to the vehicle.

Description

Continuously variable transmission for vehicles

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FIG. 1 is a structural view of a first embodiment related to the present invention, FIG. 2 is a sectional view of a pulley outer diameter displacement generating means applied to the present invention, and FIG. 3 is a structural view of a second embodiment related to the present invention.

Claims (11)

A torque converter that receives power from an engine and converts the torque into torque; an input shaft that is directly connected to the turbine side of the torque converter and that is connected to the input shaft by a reduction gear and selectively operates a friction member to determine a forward / backward direction of the vehicle; And a longitudinal deceleration means for driving the drive shaft mounted on both sides of the output of the forward / reverse rotation control means when the output of the forward / reverse rotation control means is transmitted to a driven pulley connected to the drive pulley by a belt. 2. The planetary gear set according to claim 1, wherein the forward / reverse rotation control means is formed of a double pinion planetary gear set, wherein the sun gear is connected to the drive pulley by a first power transmitting member, And the ring gear is selectively connected to the transmission housing via the second friction member. The ring gear is selectively connected to the transmission housing via the first friction member, and the ring gear is selectively connected to the transmission housing via the second friction member. The vehicle continuously-variable shifting device. 3. The vehicular stepless transmission according to claim 2, wherein the first friction member comprises a multi-plate clutch. 3. The vehicular stepless transmission according to claim 2, wherein the second friction member comprises a band brake. The vehicular stepless transmission according to claim 1, wherein the longitudinal deceleration means includes a reduction gear mounted on an output shaft on which a driven pulley is mounted, and a differential device for transmitting driving force transmitted from the reduction gear to a drive shaft. A torsional damper for torque-converting the torque by a damping action that absorbs the torsional vibration of the input shaft in accordance with the torque fluctuation output from the engine; and a speed reducer connected to the input shaft directly connected to the torque damper, And a control means for controlling the forward and reverse rotation control means and the forward and reverse rotation control means so that the output of the forward and reverse rotation control means is transmitted to the driven pulley connected to the drive pulley by a belt, And the deceleration means. The planetary carrier according to claim 6, wherein the pinion rotation control means is formed of a double pinion planetary gear set, the sun gear being connected to the drive pulley by a first power transmitting member, and the planetary carrier connecting the pinion gear, And the ring gear is selectively connected to the transmission housing via the second friction member. The ring gear is selectively connected to the transmission housing via the first friction member, and the ring gear is selectively connected to the transmission housing via the second friction member. The vehicle continuously-variable shifting device. 8. The vehicular stepless transmission according to claim 7, wherein the first friction member comprises a multi-plate clutch. 8. The vehicular stepless transmission according to claim 7, wherein the second friction member comprises a multi-plate clutch or a band brake. The vehicular stepless transmission according to claim 6, wherein the longitudinal deceleration means includes a reduction gear mounted on an output shaft on which a driven pulley is mounted, and a differential device for transmitting a driving force transmitted from the gear reduction gear to a drive shaft. 11. The continuously variable transmission as set forth in claim 10, wherein the output shaft is equipped with a starting clutch for interrupting transmission of power between the driven pulley and the reduction gear. ※ Note: It is disclosed by the contents of the first application.