KR100273543B1 - Automatic transmission control device and method - Google Patents

Automatic transmission control device and method Download PDF

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Publication number
KR100273543B1
KR100273543B1 KR1019950068335A KR19950068335A KR100273543B1 KR 100273543 B1 KR100273543 B1 KR 100273543B1 KR 1019950068335 A KR1019950068335 A KR 1019950068335A KR 19950068335 A KR19950068335 A KR 19950068335A KR 100273543 B1 KR100273543 B1 KR 100273543B1
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KR
South Korea
Prior art keywords
lock
lockup
releasing
satisfied
throttle valve
Prior art date
Application number
KR1019950068335A
Other languages
Korean (ko)
Other versions
KR970046577A (en
Inventor
최영삼
Original Assignee
정몽규
현대자동차주식회사
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Application filed by 정몽규, 현대자동차주식회사 filed Critical 정몽규
Priority to KR1019950068335A priority Critical patent/KR100273543B1/en
Publication of KR970046577A publication Critical patent/KR970046577A/en
Application granted granted Critical
Publication of KR100273543B1 publication Critical patent/KR100273543B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14Inputs being a function of torque or torque demand
    • F16H59/18Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36Inputs being a function of speed
    • F16H59/44Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
    • F16H2061/0241Adapting the ratio to special transmission conditions, e.g. shifts during warming up phase of transmission when fluid viscosity is high

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)
  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: A device and a method for controlling a releasing of a lock-up are provided to rectilinearly control the releasing of the lock-up by releasing the lock-up with one state. CONSTITUTION: A lock-up releasing controller contains a throttle position sensor(10) to detect an opening angle of a throttle valve and to convert the detected angle to an electric signal; a speed sensor(20) to detect a speed of a vehicle and to convert to an electric signal; a micro controller(30) to discriminate a lock-up releasing condition with signals from the throttle position sensor(10) and the speed sensor, to maintain a lock-up state when the lock-up releasing condition is not satisfied, to maintain a lock-up releasing state at the lock-up releasing state and to output a control signal for releasing the lock-up when the lock-up releasing condition is satisfied; and a lock-up driving unit(40) to maintain the lock-up or to release the lock-up by the control signal. Thereby, the lock-up is released rectilinearly.

Description

자동 변속차량의 록업 해제 제어장치 및 그방법Lockup release control device of automatic transmission vehicle and its method

제1도는 종래의 자동변속차량의 록업 해제 제어방법의 동작 순서도이다.1 is an operation flowchart of a conventional lockup release control method for an automatic transmission vehicle.

제2도는 본 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어장치의 구성 회로도이다.2 is a circuit diagram illustrating a lockup release control apparatus for an automatic transmission vehicle according to an exemplary embodiment of the present invention.

제3도는 본 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어방법의 동작 순서도이다.3 is an operation flowchart of a lockup release control method for an automatic transmission vehicle according to an exemplary embodiment of the present invention.

본 발명은 자동 변속차량의 록업 해제 제어장치 및 그방법에 관한 것으로서, 특히 하나의 상태로 록업해제가 이루어지도록 함으로써 선형적으로 록업해제가 무단 제어될 수 있는 자동 변속차량의 록업 해제 제어장치 및 그방법에 관한 것이다. 자동차를 운전하는 사람에 따라, 특히 초보 운전자에게는 클러치 페달, 가속 페달, 변속레버 등의 연결조작이 어렵고, 이를 숙달하게 되기 까지는 많은 시간이 걸린다. 또한, 운전에 매우 능숙한 사람이라도 장거리를 주행하게 되거나, 교통량이 많고 복잡한 시가지를 주행하게 되는 경우에 이들의 조작이 빈번해지게 됨으로써 쉽게 피로해진다. 이러한 클러치와 기어변속의 조작을 사람대신 기계가 하도록 자동화를 실현한 것이 자동 변속기(auto transmission)이다. 상기한 자동 변속기는 운전자가 가속페달과 브레이크 페달만으로 운전할 수 있도록 함으로써 숙련자가 아니더라도 쉽게 운전할 수 있는 이지 드라이브(easy drive)를 실현한 것이다. 상기한 자동 변속기를 장착한 자동 변속차량의 변속레버는, 일반적으로 운전자가 변속레버를 수동으로 선택할 때의 기능에 따라 P-R-D-2-L의 여섯가지 선택 패턴이 있다. 상기한 여섯가지 선택패턴에 대해 각각 개별적으로 설명하면 다음과 같다. P(parking) 위치에서는 각 작동요소가 완전히 작동하지 않는다. 따라서 엔진 출력은 출력축에 전달되지 않는다. 출력축은 기계적으로 파킹(parking)기구에 의해 완전히 고정되어 있으므로 차량은 전진/후진되지 않으나 이 위치에서 엔진의 시동이 가능하다. R(reverse) 위치에서는 자동차가 후진되며, 이 위치에서 엔진의 시동은 되지 않는다. N(neutral) 위치에서는 P위치에서와 같이 엔진의 출력이 출력축으로 전달되지 않으며, 이 위치에서 엔진의 시동이 가능하다. D(drive) 위치에서는 가속 페들(accelerator pedal)을 밟는 량 및 차속에 따라서 자동적으로 전진 3단 또는 4단의 변속이 이루어진다. 2(second) 위치에서는 1속과 2속 구간에서 자동 변속이 이루어지며 3속으로의 상향 변속은 되지 않는다. L(lock up) 위치에서는 2속에서 1속으로 하향 변속은 되지만, 1속에서 2속 또는 3속으로 상향 변속되지 않는다. 종래의 록업 해제 제어방법은, 드로틀 밸브의 개도각에 따라 상기한 록업(lock up) 상태를 3상태로 나누어서 해제한다. 이하, 첨부된 도면을 참조로 하여 종래의 자동 변속차량의 록업 해제 제어방법에 대하여 설명하기로 한다. 제1도는 종래의 자동 변속차량의 록업 해제 제어방법의 동작 순서도이다. 제1도에 도시되어 있듯이 종래의 자동 변속차량의 록업 해제 제어방법의 구성은, 동작이 시작되는 단계(F11)와, 드로틀 포지션 센서와 차속 센서로부터 입력되는 신호를 읽어들여 드로틀 밸브의 개도각과 차속을 감지하는 단계(F12)와, 상기한 드로틀 밸브의 개도각과 차속으로부터 록업 영역을 판정하는 단계(F13)와, 록업해제 조건이 만족되었는지를 판단하는 단계(F14)와, 록업 해제조건이 만족되지 않은 경우에 록업을 유지하는 단계(F15)와, 록업이 이미 해제생태에 있는 경우에 록업해제를 유지하는 단계(F16)와, 록업 해제조건이 만족된 경우에 드로틀 포지션 센서로부터 입력되는 신호를 읽어들여 드로틀 밸브의 개도각이 일정치(T1) 이하인지를 판단하는 단계(F17)와, 드로틀 밸브의 개도각이 일정치(T1) 이하인 경우에 제1 상태로 록업을 해제하는 단계(F18)와, 드로틀 밸브의 개도각이 일정치(T1) 이하가 아닌 경우에 드로틀 밸브의 개도각이 일정치(T2)이상인지를 판단하는 단계(F19)와, 드로틀 밸브의 개도각이 일정치(T2)이상인 경우에 제2 상태로 록업을 해제하는 단계(F20)와, 드로틀 밸브의 개도각이 일정치(T2) 이하인 경우에 제3 상태로 록업을 해제하는 단계(F21)로 이루어진다. 상기한 구성에 의한 종래의 자동 변속차량의 록업 해제 제어방법의 동작은 다음과 같이 이루어진다. 동작이 시작되면(F11), 마이크로 컨트롤러는 드로틀 포지션 센서와 차속센서로부터 입력되는 신호를 읽어들여 드로틀 밸브의 개도각과 차속을 감지한다(F12). 다음에 마이크로 콘트롤러는 상기한 드로틀 밸브의 개도각과 차속으로부터 록업 영역을 판정한 뒤에(F13), 록업해제 조건이 만족되었는지를 판단한다(F14). 마이크로 컨트롤러는, 록업 해제조건이 만족되지 않은 경우에 록업을 유지하도록 하고(F15), 록업이 이미 해제생태에 있는 경우에 록업 해제상태를 유지하도록 한다(F16). 록업 해제조건이 만족된 경우에, 마이크로 컨트롤러는 드로틀 포지션 센서로부터 입력되는 신호를 읽어들여 드로틀 밸브의 개도각이 일정치(T1)이하인지를 판단한다(F17). 드로틀 밸브의 개도각이 일정치(T1)이하인 경우에, 마이크로 컨트롤러는 제1 상태로 록업을 해제하고(F18), 드로틀 밸브의 개도각이 일정치(T1)이하가 아닌 경우에는 드로틀 밸브의 개도각이 일정치(T2)이상인지를 판단하여(F19), 드로틀 밸브의 개도각이 일정치(T2) 이상인 경우에는 제2 상태로 록업을 해제하고(F20), 드로틀 밸브의 개도각이 일정치(T2) 이하인 경우에는 제3 상태로 록업을 해제한다(F21). 그러나 상기한 종래의 자동 변속차량의 록업 해제 제어방법은, 3가지 상태로 나누어 록업을 해제하므로 록업 해제가 비선형적으로 이루어지는 문제점이 있다. 본 발명의 목적은 상기한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 하나의 상태로 록업해제가 이루어지도록 함으로써 선형적으로 록업해제가 무단 제어될 수 있는 자동 변속차량의 록업 해제 제어장치 및 그 방법을 제공하는데 있다. 상기한 목적을 달성하기 위한 수단으로서 본 발명의 장치의 구성은, 드로틀 밸브의 개도각을 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 드로틀 포지션 센서(Throttle Position Sensor, TPS)와, 차량의 속력을 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 차속센서와, 상기한 드로틀 포지션 센서와 차속센서로부터 입력되는 신호를 이용하여 록업 해제조건을 판단한 뒤에, 록업 해제조건이 만족되지 않은 경우에는 록업생태를 유지하고, 이미 록업 해제상태이면 록업 해제상태를 유지하고,록업 해제 조건이 만족된 경우에는 록업을 해제하기 위한 제어신호를 출력하는 마이크로 컨트롤러(micro controller)와, 상기한 마이크로 컨트롤러(30)으로부터 입력되는 제어신호에 따라 록업을 유지허가나 록업을 해제하는 록업 구동부를 포함하여 이루어진다. 상기한 목적을 달성하기 위한 수단으로서 본 발명의 방법의 구성은, 전원이 인가되면 동작이 시작되는 단계와, 드로틀 포지션 센서와 차속 센서로부터 입력되는 신호를 읽어들여 드로틀 밸브의 개도각과 차속을 감지하는 단계와, 상기한 드로틀 밸브의 개도각과 차속으로부터 록업 영역을 판정하는 단계와, 록업해제 조건이 만족되었는지를 판단하는 단계와, 록업 해제조건이 만족되지 않은 경우에 록업을 유지하는 단계와, 록업이 이미 해제생태에 있는 경우에 록업해제를 유지하는 단계와, 록업 해제조건이 만족된 경우에 곧바로 록업을 무단으로 해제하는 단계와,동작을 종료하고 리턴하는 단계를 포함하여 이루어진다. 이하, 본 발명을 용이하게 실시할 수 있도록 하기 위하여, 본 발명의 가장 바람직한 실시예를 첨부된 도면을 참조로 하여 설명하기로 한다. 제2도는 본 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어장치의 구성 회로도이다. 제2도에 도시되어 있듯이 본 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어장치의 구성은, 드로틀 밸브의 개도각을 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 드로틀 포지션 센서(10)와, 차량의 속력을 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 차속센서(20)와, 상기한 드로틀 포지션 센서(10)와 차속센서(20)의 출력단에 입력단이 연결되어 있는 마이크로 컨트롤러(30)와, 상기한 마이크로 컨트롤러(30)의 출력단에 입력단이 연결되어 있는 록업 구동부(40)로 이루어진다. 상기한 마이크로 컨트롤러(30)는 내부에 애널로그/디지틀 컨버터(analog to digital converter)와 메모리(memory)가 내장되어 있는 것을 용한다. 제3도는 본 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어방법의 동작 순서도이다. 제3도에 도시되어 있듯이 본 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어방법의 구성은, 전원이 인가되면 동작이 시작되는 단계(F31)와, 드로틀 포지션 센서와 차속 센서로부터 입력되는 신호를 읽어들여 드로틀 밸브의 개도각과 차속을 감지하는 단계(F32)와, 상기한 드로틀 밸브의 개도각과 차속으로부터 록업 영역을 판정하는 단계(F33)와, 록업해제 조건이 만족되었는지를 판단하는 단계(F34)와, 록업 해제조건이 만족되지 않은 경우에 록업을 유지하는 단계(F35)와, 록업이 이미 해제생태에 있는 경우에 록업해제를 유지하는 단계(F37)와, 록업 해제조건이 만족된 경우에 곧바로 록업을 무단으로 해제하는 단계(F36)와, 동작을 종료하고 리턴하는 단계(F38)를 포함하여 이루어진다. 상기한 구성에 의한, 본 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어장치 및 그 방법의 작용은 다음과 같다. 전원이 인가되면, 마이크로 컨트롤러(30)의 내부 메모리에 프로그램화되어 저장되어 있는 제3도에 도시되어 있는 동작 수순이 마이크로 컨트롤러(30)에 의해 실행됨으로써 이 발명의 실시예에 따른 자동 변속차량의 록업 해제 제어장치의 동작이 시작된다(F31). 동작이 시작되면, 마이크로 컨트롤러(30)는 드로틀 포지션 센서(10)와 차속 센서(20)로부터 입력되는 신호를 읽어들여 드로틀 밸브의 개도각과 차속을 감지한다(F32). 다음에 마이크로 컨트롤러(30)는 상기한 드로틀 밸브의 개도각과 차속으로부터 록업 영역을 판정한 뒤에(F33), 록업해제 조건이 만족되었는지를 판단한다(F34). 마이크로 컨트롤러(30)는, 록업 해제조건이 만족되지 않은 경우에 록업 구동부(40)로 제어신호를 출력하여 록업상태를 유지하도록 하고(F35), 록없이 이미 해제생태에 있는 경우에는 록업 구동부(40)로 제어신호를 출력하여 록업 해제상태를 유지하도록 한다(F37). 그러나, 록업 해제조건이 만족된 경우에, 마이크로 컨트롤러(30)는 록업 구동부(40)로 제어신호를 출력하여 록업이 무단으로 해제되도록 한 뒤에(F36), 동작을 종료하고 리턴한다(F38). 이상에서와 같이 본 발명의 실시예에서, 하나의 상태로 록업해제가 이루어지도록 함으로써 선형적으로 록업해제가 무단 제어될 수 있는 효과를 가진 자동 변속차량의 록업 해제 제어장치 및 그 방법을 제공할 수가 있다.The present invention relates to a lockup release control apparatus and a method for an automatic transmission vehicle, and in particular, to lockup release control of an automatic transmission vehicle that can be controlled in a linear fashion by allowing the release of the lockup in one state and its It is about a method. Depending on the person driving the car, especially for a novice driver, the connection operation of the clutch pedal, the accelerator pedal, the shift lever, etc. is difficult, and it takes a long time to master it. In addition, even people who are very good at driving are easily fatigued because of their frequent operation when traveling long distances, or when driving in a heavy and complicated urban area. It is automatic transmission that automates such that a clutch and a gear shift can be operated by a machine instead of a human. The automatic transmission realizes an easy drive that can be easily operated by an inexperienced driver by allowing the driver to drive only with an accelerator pedal and a brake pedal. The shift lever of an automatic transmission vehicle equipped with the above automatic transmission generally has six selection patterns of P-R-D-2-L depending on the function when the driver manually selects the shift lever. Each of the six selection patterns described above is as follows. In the P (parking) position, each operating element is not fully operational. Therefore, engine power is not transmitted to the output shaft. The output shaft is mechanically completely fixed by the parking mechanism, so the vehicle is not advanced or retracted, but the engine can be started in this position. In the R (reverse) position, the vehicle is reversed, and the engine does not start in this position. In the N (neutral) position, the engine output is not transmitted to the output shaft as in the P position, and the engine can be started at this position. In the D (drive) position, three forward or three speed shifts are automatically made depending on the amount of pedal pedal acceleration and vehicle speed. In the 2 (second) position, automatic shifting is performed in the 1st and 2nd speed sections, and it is not possible to shift up to the 3rd speed. In the L (lock up) position, downshift is made from 2 speed to 1 speed, but it is not shifted up from 1 speed to 2 speed or 3 speed. In the conventional lockup release control method, the lockup state is divided into three states and released according to the opening angle of the throttle valve. Hereinafter, a lockup release control method of a conventional automatic transmission vehicle will be described with reference to the accompanying drawings. 1 is an operation flowchart of a conventional lockup release control method for an automatic transmission vehicle. As shown in FIG. 1, the conventional configuration of the lockup release control method for an automatic transmission vehicle includes a step (F11) at which the operation is started, a signal input from the throttle position sensor and the vehicle speed sensor, and the opening angle and the vehicle speed of the throttle valve. Detecting a lockup area (F12), determining the lockup area from the opening angle and the vehicle speed of the throttle valve (F13), determining whether the lockup release condition is satisfied (F14), and the lockup release condition are not satisfied. If not, maintaining the lockup (F15), if the lockup is already in the unlocked state (F16), and if the lockup release condition is satisfied, the signal input from the throttle position sensor is read. Determining whether the opening angle of the throttle valve is equal to or less than a predetermined value T1, and releasing the lockup to the first state when the opening angle of the throttle valve is equal to or less than a predetermined value T1 (F18). And determining whether the opening angle of the throttle valve is greater than or equal to the constant value T2 when the opening angle of the throttle valve is not smaller than or equal to the predetermined value T1, and opening angle of the throttle valve is equal to the constant value T2. (F20) to release the lockup in the second state when the above state is greater than or equal to (F21) when the opening angle of the throttle valve is equal to or less than the predetermined value T2. The operation of the conventional lockup release control method of the automatic transmission vehicle according to the above configuration is performed as follows. When the operation is started (F11), the microcontroller reads signals input from the throttle position sensor and the vehicle speed sensor to sense the opening angle and the vehicle speed of the throttle valve (F12). Next, the microcontroller determines the lockup area from the opening angle and the vehicle speed of the throttle valve described above (F13), and then determines whether the lockup release condition is satisfied (F14). The microcontroller keeps the lockup when the lockup release condition is not satisfied (F15) and maintains the lockup release state when the lockup is already in the release ecology (F16). When the lockup release condition is satisfied, the microcontroller reads a signal input from the throttle position sensor to determine whether the opening angle of the throttle valve is equal to or less than a predetermined value T1 (F17). If the opening angle of the throttle valve is equal to or less than the constant value T1, the microcontroller releases the lockup to the first state (F18), and if the opening angle of the throttle valve is not equal to or less than the constant value T1, the opening degree of the throttle valve is determined. It is determined whether the angle is equal to or greater than the constant value T2 (F19). If the opening angle of the throttle valve is equal to or greater than the constant value T2, the lockup is released to the second state (F20), and the opening angle of the throttle valve is constant. If it is less than T2, the lockup is released to the third state (F21). However, the lockup release control method of the conventional automatic transmission vehicle has a problem in that the lockup release is made nonlinear because the lockup is released in three states. SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems as described above, and the lock-up release control apparatus and method of the automatic transmission vehicle in which the lock-up release can be linearly controlled by allowing the lock-up release to be performed in one state. To provide. As a means for achieving the above object, the configuration of the apparatus of the present invention, a throttle position sensor (TPS) for detecting the opening angle of the throttle valve and converts it into an electrical signal and outputs it, the speed of the vehicle After detecting the lockup release condition using the vehicle speed sensor and the signal input from the throttle position sensor and the vehicle speed sensor after detecting the signal, and the lockup release condition is not satisfied, From the microcontroller and the microcontroller 30 for outputting a control signal for releasing the lockup if the lockup release condition is satisfied. It includes a lock-up driving unit for maintaining the lock-up or release the lock-up according to the input control signal . As a means for achieving the above object, the configuration of the method of the present invention includes the steps of starting operation when power is applied, and reading the signals input from the throttle position sensor and the vehicle speed sensor to detect the opening angle and the vehicle speed of the throttle valve. Determining the lock-up area from the opening angle and vehicle speed of the throttle valve, determining whether the lock-up release condition is satisfied, maintaining the lock-up if the lock-up release condition is not satisfied, Maintaining lockup release if it is already in the unlocked environment, unlocking the lockup immediately if the lockup release condition is satisfied, and terminating and returning the operation. Hereinafter, in order to facilitate the present invention, the most preferred embodiment of the present invention will be described with reference to the accompanying drawings. 2 is a circuit diagram illustrating a lockup release control apparatus for an automatic transmission vehicle according to an exemplary embodiment of the present invention. As shown in FIG. 2, the configuration of the lockup release control apparatus for an automatic transmission vehicle according to an exemplary embodiment of the present invention includes a throttle position sensor 10 that detects an opening angle of a throttle valve and converts it into an electrical signal and outputs the electrical signal. And a vehicle speed sensor 20 for detecting the speed of the vehicle and converting it into an electrical signal and outputting the same, and a microcontroller having an input terminal connected to an output end of the throttle position sensor 10 and the vehicle speed sensor 20 ( 30 and a lock-up driving unit 40 having an input terminal connected to the output terminal of the microcontroller 30. The microcontroller 30 uses a built-in analog to digital converter and a memory therein. 3 is an operation flowchart of a lockup release control method for an automatic transmission vehicle according to an exemplary embodiment of the present invention. As shown in FIG. 3, the configuration of the lockup release control method of the automatic transmission vehicle according to the embodiment of the present invention includes a step (F31) in which an operation is started when power is applied, a signal input from a throttle position sensor and a vehicle speed sensor. Detecting the opening angle and the vehicle speed of the throttle valve (F32), determining the lockup area from the opening angle and the vehicle speed of the throttle valve (F33), and determining whether the unlocking condition is satisfied (F34). ), Maintaining the lockup if the lockup release condition is not satisfied (F35), maintaining the release of the lockup if the lockup is already in the unlocked state (F37), and if the lockup release condition is satisfied. Immediately unlocking the lockup (F36), and terminating and returning the operation (F38). With the above configuration, the operation of the lockup release control apparatus and method of the automatic transmission vehicle according to the embodiment of the present invention is as follows. When the power is applied, the operation procedure shown in FIG. 3, which is programmed and stored in the internal memory of the microcontroller 30, is executed by the microcontroller 30, thereby providing an automatic transmission vehicle according to an embodiment of the present invention. The operation of the lockup release control device is started (F31). When the operation is started, the microcontroller 30 detects the opening angle and the vehicle speed of the throttle valve by reading signals input from the throttle position sensor 10 and the vehicle speed sensor 20 (F32). Next, the microcontroller 30 determines the lockup region from the opening angle and the vehicle speed of the throttle valve described above (F33), and then determines whether the lockup release condition is satisfied (F34). The microcontroller 30 outputs a control signal to the lockup driver 40 when the lockup release condition is not satisfied to maintain the lockup state (F35). Outputs a control signal to maintain the lockup release state (F37). However, when the lockup release condition is satisfied, the microcontroller 30 outputs a control signal to the lockup driver 40 to allow the lockup to be released without permission (F36), then terminates the operation and returns (F38). As described above, in the embodiment of the present invention, it is possible to provide a lockup release control apparatus and method for an automatic transmission vehicle having an effect that the unlocking can be linearly controlled by allowing the unlocking to be performed in one state. have.

Claims (1)

전원이 인가되면 동작이 시작되는 단계(F31)와; 드로톨포지션 센서와 차속센서로부터 입력되는 신호를 읽어드려 드로틀 밸브 개도각과 차속을 감지하는 단계(F32)와; 상기 감지된 드로틀밸브 개도각과 차속으로부터 록 업 영역을 판정하는 단계(F33)와; 상기 록업영역이면 록업해제조건이 만족되는지를 판단하는 단계(F34)와; 상기 록업해제조건이 만족되지 않을 경우에 록업을 유지하는 단계(F35)와; 상기 록업해제조건이 만족된 경우에 곧바로 록업을 무단으로 해제하는 단계(F36)와; 상기 록업이 이미 해제상태에 있는 경우 록업해제를 유지하는 단계(F37)로 이루어짐을 특징으로 하는 자동 변속차량의 록업 해제 제어방법.Starting operation (F31) when power is applied; Detecting a throttle valve opening angle and a vehicle speed by reading signals input from the drotol position sensor and the vehicle speed sensor (F32); Determining a lock-up area from the sensed throttle valve opening angle and vehicle speed (F33); Determining whether the lockup release condition is satisfied in the lockup area (F34); Maintaining lockup if the lockup release condition is not satisfied (F35); (F36) releasing the lockup immediately if the lockup release condition is satisfied; If the lockup is already in the unlocked state, maintaining lockup release (F37).
KR1019950068335A 1995-12-30 1995-12-30 Automatic transmission control device and method KR100273543B1 (en)

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