KR100264648B1 - Automatic transmission pattern device - Google Patents

Automatic transmission pattern device Download PDF

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Publication number
KR100264648B1
KR100264648B1 KR1019950069122A KR19950069122A KR100264648B1 KR 100264648 B1 KR100264648 B1 KR 100264648B1 KR 1019950069122 A KR1019950069122 A KR 1019950069122A KR 19950069122 A KR19950069122 A KR 19950069122A KR 100264648 B1 KR100264648 B1 KR 100264648B1
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KR
South Korea
Prior art keywords
temperature
speed
automatic transmission
shift
oil temperature
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KR1019950069122A
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Korean (ko)
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KR970046598A (en
Inventor
서광민
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정몽규
현대자동차주식회사
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Priority to KR1019950069122A priority Critical patent/KR100264648B1/en
Publication of KR970046598A publication Critical patent/KR970046598A/en
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Publication of KR100264648B1 publication Critical patent/KR100264648B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control 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
    • F16H61/02—Control 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
    • F16H61/0202—Control 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
    • F16H61/0204—Control 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H59/72—Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H2059/366—Engine or motor speed

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: A shifting pattern deciding method for an automatic transmission is provided to maximize the efficiency of a torque converter by considering operating oil temperature as a transmission pattern deciding factor and to prevent the delay of a responsive time by considering an engine rpm(revolutions per minute) as well as velocity. CONSTITUTION: To decide the shifting pattern of an automatic transmission, a system reads the present temperature of operating oil temperature and compares the operating oil temperature with the reference temperature of a corresponding shifting point when the opening degree of a throttle and velocity are within the corresponding point. When the operating oil temperature is higher than or the same as the reference temperature, the system reads an engine rpm and when the oil temperature is lower than the reference temperature, a process is returned to an initial step. When the engine rpm is higher than or the same as a reference rpm, the system changes a speed.

Description

자동변속기의 변속패턴을 결정하는 방법How to determine the shift pattern of the automatic transmission

제1도는 이코노미 모드에서의 자동변속기의 변속패턴을 나타내고,1 shows a shift pattern of an automatic transmission in economy mode,

제2도는 파워모드에서의 자동변속기의 변속패턴을 나타내며,2 shows the shift pattern of the automatic transmission in the power mode,

제3도는 본 발명에 관한 변속제어의 흐름도이다.3 is a flowchart of shift control according to the present invention.

본 발명은 자동 변속기의 변속패턴을 결정하는 방법에 관한 것이다.The present invention relates to a method for determining a shift pattern of an automatic transmission.

종래의 자동 변속기의 변속패턴을 결정하는 요소는 차속과 스로틀개도만의 함수로 되어 있었다. 도면중 제1도에는 이코노미 모드(Economy mode)에서의 변속패턴을 나타내었는바, 가로축은 트랜스퍼 드라이브 기어의 회전속(No)(RPM) 및 차속(Km/h)을, 세로축에는 스로틀 개도(%)를 나타내었다. 마찬가지로 제2도에 파워 모드(Power mode)에서의 변속패턴을 같은 척도를 사용하여 나타내었다.The factors for determining the shift pattern of the conventional automatic transmission were a function only of the vehicle speed and the throttle opening degree. In FIG. 1, the shift pattern in the economy mode is shown in FIG. 1, where the horizontal axis represents the rotational speed (RPM) and the vehicle speed (Km / h) of the transfer drive gear, and the vertical axis represents the throttle opening degree (%). ). Similarly, the shift pattern in the power mode is shown in FIG. 2 using the same scale.

종축은 엔진 스로틀 밸브의 개도를 나타내고, 횡축은 차속(트랜스퍼샤프트 회전수 = 펄스제너레이터 B에서 산출)을 나타낸다.The vertical axis represents the opening degree of the engine throttle valve, and the horizontal axis represents the vehicle speed (transfer shaft rotational speed = calculated by pulse generator B).

변속패턴중의 실선은 종속 변속(UP SHIFT), 점선은 감속 변속(DOWN SHIFT), 일점쇄선은 선택레버를 수동으로 조작(“2”, “L”)했을 경우의 감속 변속 시점을 나타낸다.The solid line in the shift pattern is the upshift, the dotted line is the downshift, and the dashed line represents the deceleration shift time when the selector lever is manually operated (“2” or “L”).

단, 4속에서 3속의 감속변속 일점쇄선은 4속(175km), 트랜스퍼 드라이브기어 회전수(6000RPM)에서의 OD-OFF시의 변속시기를 나타낸다.However, the deceleration shift one-dot chain line of the 4th to 3rd speeds shows the shifting time at the time of OD-OFF at the 4th speed (175km) and the transfer drive gear speed (6000RPM).

종속 변속 시점과 감속 변속 시점에 차이가 있는 것은 변속점 경계의 구간에서의 주행조건일 경우 증속, 감속 변속이 빈번하게 일어나지 않도록 차이를 두어 승차감을 향상 시키기 위함이다.The difference between the subordinate shift point and the deceleration shift point is to improve the ride comfort by making the difference so that the speed increase and the deceleration shift do not occur frequently in the driving conditions at the boundary of the shift point.

이를 히스테리시스(Hysteresis : 이력현상)라 한다.This is called hysteresis.

저속(약 7km/h) 주행중 엑셀페달을 밟지 않는 상태일 경우 2속으로 홀드(HOLD)시켜 공회전 상태에서의 진동 저감 및 크리프 양 저감을 도모한다. 엑셀러레이터페달을 밟으면 1속으로 되어 발진한다.If you do not step on the accelerator pedal while driving at low speed (approx. 7 km / h), hold it at 2 speeds to reduce vibration and creep in idle mode. When the accelerator pedal is pressed, it starts at 1 speed and oscillates.

스로틀 밸브를 많이 개방시킬 때에는 스로틀 밸브를 적게 개방시킬 때보다 기어 영역이 길게 되어 있다.When the throttle valve is opened a lot, the gear area is longer than when the throttle valve is opened a little.

이는 동일 차속에서 스로틀 밸브가 많이 열린 주행일 경우 차량의 주행저항이 큰 상태를 나타내는 것으로 구동력이 큰 저속기어 주행상태를 요구하기 때문이다.This is because the driving resistance of the vehicle is large when the throttle valve is opened at the same vehicle speed, and the driving speed of the low speed gear with a large driving force is required.

그러나, 기존 시스템의 경우 자동변속기의 작동유의 온도에 관계없이 동일한 변속 패턴을 사용함으로써 온도 변화에 따른 작동유의 점도변화를 고려치 못함으로써 토오크 컨버터의 효율감소에 대한 보상 대책이 없다는 문제점이 있었으며, 또한 자동 변속기 차량에 대한 사용자의 불만사항중 하나인 추월 가속시 반응시간 지체에 대하여, 이는 가속의지에 따라 가속페달을 밟지만 엔진 회전속(RPM)의 변화에 대한 차속변화가 늦어짐으로써 느끼는 현상이며, 따라서 추월 가속을 위한 다운 쉬프트를 스로틀 개도와 회전속(RPM) 변화정도에 따르도록 제어 논리를 변경하고자 하는 것이다.However, in case of the existing system, the same shift pattern is used regardless of the temperature of the operating oil of the automatic transmission, so that the viscosity change of the operating oil is not taken into consideration. One of the user's complaints about the automatic transmission vehicle, which is a delay in the response time of overtaking acceleration, is a phenomenon that is felt by slowing the change of the vehicle speed with respect to the change of the engine rotational speed (RPM) although the accelerator pedal is applied according to the acceleration will. Therefore, we want to change the control logic so that the downshift for overtaking acceleration depends on the throttle opening degree and the rotational speed (RPM) variation.

본 발명은 이상의 목적을 달성하고자 변속 패턴을 결정하는 데 필요한 요인을 종래의 차속 및 스로틀 개도 뿐만 아니라 변속기 작동유 온도 및 엔진 회전속도 추가하여 변속을 실행하는 것이다.In order to achieve the above object, the present invention is to perform the shift by adding the transmission oil temperature and the engine rotation speed as well as the conventional vehicle speed and throttle opening degree to determine the shift pattern.

본 발명에 관한 변속패턴의 제어에 대한 흐름도를 제3도에 나타내었다.3 is a flowchart illustrating control of a shift pattern according to the present invention.

변속 패턴이 개시되면(S1), 먼저 현재의 스로틀 개도(%) 및 차속을 판독하여(S2), 변속이 일어나야 할지 여부를 결정한다.(S3)When the shift pattern is started (S1), first, the current throttle opening degree (%) and the vehicle speed are read (S2) to determine whether shifting should occur. (S3)

변속이 일어나야 할 적정 변속점은, 제1도 및 제2도에서와 같이 미리 설정되어 있다. 그후 다시 작동유의 현재온도(Tc)를 판독하여(S4), 각 해당 변속점에서의 기준온도(Tr)과 일치 여부를 조사한 후(S5), 일치하지 않으면 (Tc＜ Tr) 초기위치(S2)로 리턴한다. 만약 일치한다면, 다시 현재 엔진의 회전속(Wc)을 판독하여(S6), 현재의 회전속(Wc)가 기준 회전속(Wr)과 일치하는가의 여부를 조사하여(S7), 일치하지 않으면 (Wc＜ Wr) 초기위치(S2)로 리턴한다. 만약 일치한다면 변속을 실행한후(S8) 초기위치(S2)로 돌아가며 이때는 물론 적정 변속점 및 기준량(Tr, Wr)이 변경됨은 물론이다.The appropriate shift point at which the shift should occur is set in advance as in FIGS. 1 and 2. After that, the current temperature (T c ) of the hydraulic oil is read again (S4), and it is checked whether or not it matches the reference temperature (T r ) at each shift point (S5), and if it does not match (T c <T r ) Return to position S2. If there is a match, it reads the rotational speed W c of the current engine again (S6) and checks whether the current rotational speed W c coincides with the reference rotational speed W r (S7). Otherwise, (W c <W r ) is returned to the initial position S2. If there is a match, after shifting (S8), the process returns to the initial position (S2), and of course, the proper shift point and the reference amounts (T r , W r ) are of course changed.

따라서, 본원발명에 의하면 변속패턴을 결정하는 요소로서 작동유의 온도도 고려함으로써 토오크 컨버터의 효율을 최량으로 할 수 있으며, 차속 뿐만아니라 엔진의 회전속도 고려함으로써 추월가속시 응답시간 지연 현상을 방지할 수 있는 장점이 있다.Therefore, according to the present invention, the efficiency of the torque converter can be maximized by considering the temperature of the hydraulic oil as a factor for determining the shift pattern, and the response time delay can be prevented during overspeeding by considering the rotation speed of the engine as well as the vehicle speed. There is an advantage.

또한, 본 발명을 편의상 일실시예를 예로 들어 설명하였으나, 이외에도 여러 가지 변경된 실시예가 존재할 수 있으며, 상기 실시예에 의하여 통상의 기술자에 의하여 당연히 용이하게 변경가능한 다른 변경예도 본원발명의 기술사상을 벗어나지 않는 한, 본 발명의 범위를 넘지않는다. 따라서 상기 실시예가 어떠한 의미에서 건 본 발명을 제한하는 의미로 해석되어져서는 않되며, 단지 본 발명은 다음의 특허청구범위에 의해서만 제한되는 것으로 해석되어 진다.In addition, the present invention has been described with reference to one embodiment as an example, in addition to that there can be various modified embodiments, other modifications that can be easily changed by those skilled in the art by the above embodiment also without departing from the spirit of the present invention Unless otherwise, the scope of the present invention is not exceeded. Therefore, the above embodiments should not be construed as limiting the present invention in any sense, only the present invention is limited only by the following claims.

Claims (1)

현재의 스로틀 개도 및 차속을 판독하고, 미리 설정되어 있는 기준 스로틀 개도 및 차속과 비교하여 각 해당 변속점을 판단하는 자동 변속기의 변속 패턴을 결정하는 방법에 있어서, 상기한 스로틀 개도와 차속이 미리 설정된 각 해당 변속점 영역 이내이면, 작동유의 현재 온도를 판독하고, 상기한 작동유의 온도를 미리 설정된 해당 변속점의 기준 온도와 비교하는 단계와, 상기한 온도 비교시 작동유의 온도가 미리 설정된 해당 변속점의 기준 온도와 같거나 높으면 엔진 회전속을 판독하고, 낮으면 초기 단계로 리턴하는 단계와, 상기한 엔진 회전속을 판독하고 미리 설정된 해당 변속점의 기준 회전속과 비교하는 단계와, 상기한 작동유 온도가 기준 온도와 같거나 높고, 엔진 회전속이 기준 회전속과 같거나 높으면 변속을 실행하는 단계를 포함함을 특징으로 하는 자동 변속기의 변속 패턴을 결정하는 방법.A method of determining a shift pattern of an automatic transmission that reads a current throttle opening degree and a vehicle speed and determines each corresponding shift point by comparing with a preset reference throttle opening degree and a vehicle speed, wherein the throttle opening degree and the vehicle speed are set in advance. Reading the current temperature of the hydraulic oil and comparing the temperature of the hydraulic oil with a reference temperature of the predetermined speed change point, and when the temperature is compared, the temperature of the hydraulic oil is preset. Reading the engine speed if it is equal to or higher than the reference temperature, and returning to the initial stage if the temperature is low, reading the engine speed and comparing it with a reference speed of the corresponding shift point in advance; And if the temperature is equal to or higher than the reference temperature and the engine speed is equal to or higher than the reference speed, carrying out a shift. How to determine the shift pattern of an automatic transmission according to Gong.
KR1019950069122A 1995-12-30 1995-12-30 Automatic transmission pattern device KR100264648B1 (en)

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KR100264648B1 true KR100264648B1 (en) 2000-10-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109838549A (en) * 2017-11-27 2019-06-04 奥特润株式会社 Shifting time point control method and the automatic transmission controlled by this method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03144162A (en) * 1989-10-31 1991-06-19 Aisin Seiki Co Ltd Speed change controller for automatic transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03144162A (en) * 1989-10-31 1991-06-19 Aisin Seiki Co Ltd Speed change controller for automatic transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109838549A (en) * 2017-11-27 2019-06-04 奥特润株式会社 Shifting time point control method and the automatic transmission controlled by this method
CN109838549B (en) * 2017-11-27 2020-12-25 奥特润株式会社 Method for controlling shift timing and automatic transmission controlled by the same

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