KR960021748A

KR960021748A - Friction element motion timing correction device of automatic transmission and its control method

Info

Publication number: KR960021748A
Application number: KR1019940039690A
Authority: KR
Inventors: 이희용
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1994-12-30
Filing date: 1994-12-30
Publication date: 1996-07-18

Abstract

목표 변속단으로의 변속 동작이 이루어질 경우, 목표 엔진 회전수로 동기될 때와 해당 마찰 요소의 동작 완료 시점이 일치하도록 작동 시간을 보정할 수 있도록 하는 자동 변속 장치의 마찰 요소 동작 시기 보정 장치 및 그 제어 방법을 제공하기 위하여, 토크 컨버터의 터빈축 회전수를 감지하여 해당하는 신호를 출력하는 터빈축 회전수 감지 수단과; 변속 장치의 입력축 회전상태에 따라 펄스 신호의 주기가 가변되는 입력축 회전수 감지수단과; 변속 장치에서 작용하는 유체의 온도를 감지하여 해당하는 신호를 출력하는 변속 오일 온도 감지수단과; 변속 장치의 입/출력 회전수에 의해 판단되는 런업량의 발생 정도에 따라 해당 마찰요소의 동작 시간을 가감시켜 해당 마찰요소의 동작 상태를 제어하는 변속 제어수단과; 상기 변속 제어수단에서 인가되는 제어신호에 따라 동작 상태가 가변되어 마찰 요소의 동작 상태를 가변시키는 마찰요소 액츄에이터로 이루어져 있다.When the shifting operation to the target shift stage is made, the friction element operation timing correction device of the automatic transmission to correct the operating time so that the synchronization time at the target engine speed and the completion of the operation of the corresponding friction element, and its Turbine shaft rotational speed sensing means for sensing the turbine shaft rotational speed of the torque converter to output a corresponding signal to provide a control method; Input shaft rotation speed detecting means for varying the period of the pulse signal according to the input shaft rotation state of the transmission; Shift oil temperature sensing means for sensing the temperature of the fluid acting on the transmission and outputting a corresponding signal; Shift control means for controlling an operation state of the friction element by adding or subtracting an operation time of the friction element according to the generation amount of the run-up determined by the input / output rotational speed of the transmission device; The operation state is changed according to the control signal applied from the shift control means, and consists of a friction element actuator for varying the operation state of the friction element.

Description

Friction element motion timing correction device of automatic transmission and its control method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 이 발명의 실시예에 따른 자동 변속 장치의 3속→2속시 마찰 요소 동작시기 보정 장치의 블럭도,1 is a block diagram of an apparatus for correcting operation timing of a friction element at three speeds to two speeds of an automatic transmission according to an exemplary embodiment of the present invention;

제2도는 이 발명의 실시예에 따른 자동 변속 장치의 3속→2속시 마찰 요소 동작시기 보정 제어 방법의 동작순서도이다.2 is an operation flowchart of the method of controlling the operation timing of the friction element at the 3rd speed to the 2nd speed of the automatic transmission according to the embodiment of the present invention.

Claims

Turbine shaft rotational speed sensing means for sensing the turbine shaft rotational speed of the torque converter and outputting a corresponding signal; Input shaft rotation speed detecting means for varying the period of the pulse signal in accordance with the rotation state of the input shaft of the transmission; Output shaft rotation speed detecting means for varying the period of the pulse signal in accordance with the output shaft rotation state of the transmission; Shift oil temperature sensing means for sensing the temperature of the fluid acting on the transmission and outputting a corresponding signal; Shift control means for controlling an operation state of the friction element by adding or subtracting an operation time of the friction element according to the generation amount of the run-up determined by the input / output rotational speed of the transmission device; And a friction element actuator configured to change an operation state of the friction element according to a control signal applied from the shift control means.

The friction element operating timing correcting apparatus according to claim 1, wherein the shift control means varies a correction amount for correcting an operation time of the friction element in accordance with a temperature of the transmission oil.

Determining whether the driving state of the vehicle satisfies a setting condition; Calculating a presently generated run-up amount by reading a signal applied from the input / output shaft rotation speed detecting means when the driving state of the vehicle satisfies the setting condition; Comparing the sum of the calculated run-up amount and the rotational speed of the turbine shaft calculated by the signal applied from the turbine shaft rotational speed sensing means with the theoretical turbine shaft rotational speed; When the speed is less than or equal to the theoretical turbine shaft rotation speed, comparing the shift time with the set shift time and increasing the shift time by an adjustment time according to the temperature of the shift oil when the set shift time is not exceeded; If the turbine shaft speed calculated by the calculated run-up amount and the signal applied from the turbine shaft speed sensing means is larger than the theoretical turbine shaft speed, the current turbine speed change rate is calculated and the target turbine shaft speed change rate Comparing; When the current turbine shaft speed change rate is greater than the target turbine shaft speed change rate, the operation time correction control method of the friction element of the automatic transmission comprising the step of reducing the operation time by the adjustment time according to the temperature of the transmission oil. .

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