KR960010322A

KR960010322A - Gear train of car automatic transmission

Info

Publication number: KR960010322A
Application number: KR1019940022488A
Authority: KR
Inventors: 서태석
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1994-09-07
Filing date: 1994-09-07
Publication date: 1996-04-20

Abstract

기존 전진 3단 후진 1단의 변속비를 얻을 수 있는 자동 변속기를 전진 3단 6속과 후진 1단으로 다단화함으로써, 연료소비율을 최소화하고, 동력 성능 및 구동 성능을 향상시킬 목적으로; 차속 및 스로틀 밸브의 개도정도에 따라 트랜스 밋션 제어유닛에 의해 제어되는 유압 제어장치의 클러치들과 브레이크에 의해 선택적으로 회전 또는 비회전하는 복합 유성기어유닛을 포함하는 다단 변속기어 변속 메카니즘을 갖는 자동 변속기에 있어서, 엔진의 출력 토오크를 2단계로 변환하는 2단3상 4요소 토오크 컨버터와; 상기 토오크 컨버터와 입력축 사이에 개재되어 2단으로 출력이 이루어지는 단순 유성기어 유닛과; 2개의 단순 유성기어 유닛으로 조합으로 이루어져 상기 입력축의 회전 구동력을 전달받아 차량의 주행 조건에 따라 3단계로 변속을 행하는 복합 유성기어유닛과; 상기 토오크 컨버터의 출력이 단순유성기어유닛에 전달되는 것을 단속하는 제1,2댐퍼 클러치와; 상기 토오크 캔버터의 스테이터와 단순 유성기어유닛의 역회전을 방지하는 제1, 2일방향 클러치와; 상기 복합 유성기어유닛의 제1, 2선기어로 입력축의 회전력이 전달되는 것을 선택적으로 단속하는 제1,2클러치와; 상기 복합 유성기어유닛의 제2선기어 및 캐리어의 회전을 선택적으로 정지시켜 주는 제1,2브레이크를 포함하여 이루어지는 차량용 자동 변속기의 기어 트레인을 제공한다.By multiplexing the automatic transmission that can achieve the transmission ratio of the existing three-speed reverse one-stage to three forward six-speed and one reverse, the purpose is to minimize fuel consumption, improve power performance and drive performance; Automatic transmission having a multi-stage gear shifting mechanism including clutches of a hydraulic control unit controlled by a transmission control unit and a compound planetary gear unit selectively rotating or non-rotating by a brake according to the vehicle speed and the degree of opening of the throttle valve. A two-stage three-phase four-element torque converter for converting the output torque of the engine in two stages; A simple planetary gear unit interposed between the torque converter and an input shaft and outputting in two stages; A compound planetary gear unit which is composed of two simple planetary gear units and receives a rotational driving force of the input shaft and shifts in three stages according to driving conditions of the vehicle; First and second damper clutches intermitting that the output of the torque converter is transmitted to the simple planetary gear unit; First and second unidirectional clutches for preventing reverse rotation of the stator of the torque canter and the simple planetary gear unit; First and second clutches for selectively intermitting transmission of rotational force of the input shaft to the first and second sun gears of the composite planetary gear unit; Provided is a gear train of an automatic transmission for a vehicle, comprising first and second brakes for selectively stopping rotation of a second sun gear and a carrier of the composite planetary gear unit.

Description

Gear train of car automatic transmission

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 의한 기어 트레인의 스틱 다이어그램1 is a stick diagram of a gear train according to the present invention.

제2도는 제1도의 기어 트레인이 전진 3단 6속과 후진 1속의 변속비를 낼 수 있도록 하는 각 변속단별 마찰요소의 작동표이다.FIG. 2 is an operating table of friction elements for each shift stage, which enables the gear train of FIG. 1 to have a gear ratio of three forward six speeds and one reverse speed.

Claims

Automatic transmission having a multi-stage gear shifting mechanism including clutches of a hydraulic control unit controlled by a transmission control unit and a compound planetary gear unit selectively rotating or non-rotating by a brake according to the vehicle speed and the degree of opening of the throttle valve. A two-stage three-phase four-element torque converter for varying the output torque of the engine in two stages; A simple planetary gear unit interposed between the torque converter and an input shaft and outputting in two stages; A double speed planetary gear unit which is composed of two simple planetary gear units and receives a rotational driving force of the input shaft and shifts in three steps according to the driving conditions of the vehicle; First and second damper clutches intermitting that the output of the torque converter is transmitted to the simple planetary gear unit; First and second unidirectional clutches for preventing reverse rotation of the stator of the toco converter and the simple planetary gear unit; First and second clutches for selectively controlling transmission of rotational force of the input shaft to the first and second sun gears of the composite planetary gear unit; And a first and second brake for selectively stopping rotation of the second sun gear and the carrier of the composite planetary gear unit.

2. The torque converter of claim 1, further comprising: an impeller rotating in direct connection with the crankshaft of the engine; A first turbine which is disposed to face the impeller and rotates together by oil ejected; A second turbine rotating together by oil ejected during the high speed rotation of the first turbine; A gear train of an automatic transmission for a vehicle, comprising a stator disposed between these impellers and a second turbine to change the flow of oil to increase the rotational force of the impeller.

According to claim 1, The simple planetary gear unit is composed of a ring gear, a pinion and a sun gear, the ring gear is connected to the first turbine is a first input element, the sun gear is a second turbine and the connection door second input element. The gear train of the automatic transmission for a vehicle, characterized in that the carrier is connected to the input shaft to be an output element.

※ Note: The disclosure is based on the initial application.