KR970046629A

KR970046629A - Automatic transmission line pressure variable control device and method

Info

Publication number: KR970046629A
Application number: KR1019950068395A
Authority: KR
Inventors: 권혁빈; 도규철
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1995-12-30
Filing date: 1995-12-30
Publication date: 1997-07-26

Abstract

이 발명은 자동변속기 라인압 가변 제어장치 및 그 방법에 관한 것으로, 차속을 감지하여, 그에 해당하는 전기적인 신호를 출력하는 차속감지부(10)와, 스로틀 밸브의 개도량을 감지하여, 그에 따른 전기적인 신호를 출력하는 스로틀 밸브 감지부(20)와, 현재 변속단을 감지하여, 그에 따른 전기적인 신호를 출력하는 스로틀 밸브 감지부(20)와, 현재 변속단 감지부(30)와 상기 차속 감지부(10)와, 스로틀 밸브 감지부(20)와, 현재 변속단 감지부(30)로부터 출력되는 신호를 입력받아, 자동변속기의 변속시 라인압과 댐퍼 클러치를 제어하는 신호를 출력하는 제어부(40)와 상기 제어부(40)로부터 출력되는 신호에 따라 동작하여, 라인압을 조절하는 댐퍼 클러치 컨트롤 솔레노이드 밸브(50)로 이루어져 있으며, 자동변속기의 변속 상태에서의 유압을 제어하는 데에 있어서, 저라인압 상태의 변속에 대하여, 라인압가변과 댐퍼 클러치 제어를 효과적으로 수행할 수 있는 자동변속기 라인압가변 제어장치 및 그 방법에 관한 것이다.The present invention relates to an automatic transmission line pressure variable control device and a method thereof, which detects a vehicle speed and outputs an electrical signal corresponding thereto, and detects an opening amount of a throttle valve, A throttle valve detector 20 for outputting an electrical signal, a throttle valve detector 20 for detecting a current shift stage, and outputting an electric signal according to the present, a current shift stage detector 30 and the vehicle speed Control unit 10, the throttle valve detection unit 20, and the control unit for receiving a signal output from the current shift stage detection unit 30, and outputs a signal for controlling the line pressure and the damper clutch when shifting the automatic transmission (40) and a damper clutch control solenoid valve (50) which operates in accordance with the signal output from the control unit (40) to adjust the line pressure, which is used to control the hydraulic pressure in the shift state of the automatic transmission. Then, the present invention relates to an automatic transmission line pressure variable control device and a method for effectively performing line pressure variable and damper clutch control with respect to a shift in a low line pressure state.

Description

Automatic transmission line pressure variable control device and method

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

제1도는 라인압 가변 제어의 유압 회로도이고,1 is a hydraulic circuit diagram of the line pressure variable control,

Claims

Vehicle speed detecting means for detecting a vehicle speed and outputting an electric signal corresponding thereto; Throttle valve detecting means for detecting an opening amount of the throttle valve and outputting an electric signal accordingly; Current shift stage sensing means for sensing a current shift stage and outputting an electrical signal according thereto; Control means for receiving a signal output from the vehicle speed detecting means, the throttle valve detecting means, and the current shift stage detecting means, and outputting a signal for controlling a line pressure and a damper clutch when the automatic transmission is shifted; And a damper clutch control solenoid valve configured to operate according to a signal output from the control means to adjust the line pressure.

Reading a current shift stage to determine whether the shift stage corresponds to a third speed or a fourth speed; Calculating a predetermined shift stage by reading the vehicle speed and the throttle valve actuation amount when the shift stage is 3 speed or 4 speed; Determining whether a shift signal is generated using the predetermined shift stage calculated in the step; In the above step, when the shift signal is generated, controlling to reduce the duty ratio of the damper clutch control solenoid valve control signal; Determining whether the actual shift operation has been started, and if the shift operation has not been started, returning to the duty ratio reduction control step; And in the step of determining whether or not the shift operation is started, when the shift operation is started, performing normal control.