KR19980015159A - Automatic transmission shift control device and control method thereof - Google Patents
Automatic transmission shift control device and control method thereof Download PDFInfo
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- KR19980015159A KR19980015159A KR1019960034396A KR19960034396A KR19980015159A KR 19980015159 A KR19980015159 A KR 19980015159A KR 1019960034396 A KR1019960034396 A KR 1019960034396A KR 19960034396 A KR19960034396 A KR 19960034396A KR 19980015159 A KR19980015159 A KR 19980015159A
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- opening
- automatic transmission
- control device
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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
- F16H61/0213—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 characterised by the method for generating shift signals
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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
- 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
- F16H59/24—Inputs being a function of torque or torque demand dependent on the throttle opening
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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
- 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
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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
- 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
- F16H2059/183—Rate of change of accelerator position, i.e. pedal or throttle change gradient
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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
- F16H61/0213—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 characterised by the method for generating shift signals
- F16H2061/0227—Shift map selection, i.e. methods for controlling selection between different shift maps, e.g. to initiate switch to a map for up-hill driving
Abstract
본 발명은 자동 변속기 변속 제어 장치 및 그 제어 방법에 관한 것으로서, 더욱 상세하게는, 운전자의 의지에 부합되도록 킥 다운 변속을 개시하는 자동 변속기 변속 제어 장치 및 그 제어 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic transmission shift control device and a control method thereof, and more particularly, to an automatic transmission shift control device and a control method thereof that start a kick down shift to meet a driver's will.
스로틀 밸브의 개도율과 스로틀 밸브의 개도율을 계산하고 스로틀 밸부의 개도율이 95% 이상이면 킥 다운 변속 신호를 출력하고 스로틀 밸브의 개도율이 95% 이하이면 스로틀 밸브의 개도율이 80% 이상이고 스로틀 밸브 개도율의 변화율이 20%/sec 이상이면 킥 다운 변속 신호를 출력하고 스로틀 밸브의 개도율이 80% 이상이고 스로틀 밸브 개도율의 변화율이 20%/sec 이상인 조건에 만족하지 않으면 정상적인 가속 신호를 출력한다. 따라서, 본 발명에 따른 자동 변속기 변속 제어 장치 및 제어 방법은 두 가지의 조건 즉, 개도율이 80% 이상인 경우에는 급가속시에만, 개도율이 95%가 넘으면 무조건 킥 다운 변속이 실시되도록 하여 불의의 변속이 일어나지 않게 하고 의지에 부합되면 80%에서 킥 다운 변속이 이루어지므로 보다 빨리 차량이 가속되는 효과가 있다.The opening rate of the throttle valve and the opening rate of the throttle valve are calculated and when the opening rate of the throttle valve portion is 95% or more, the kickdown transmission signal is outputted. If the opening rate of the throttle valve is 95% Sec and the rate of change of the throttle valve opening rate is not more than 20% / sec, if the rate of change of the throttle valve opening rate is not less than 20% / sec, the kick down transmission signal is outputted and if the opening rate of the throttle valve is 80% And outputs a signal. Therefore, the automatic transmission control device and the control method according to the present invention are capable of performing an unconditional kick-down shift when the opening ratio exceeds 95% under two conditions, that is, when the opening rate is 80% The vehicle is accelerated more rapidly because the kick down transmission is performed at 80%.
Description
도1은 종래의 기술에 따른 자동 변속기의 시프트 패턴을 도시한 그래프1 is a graph showing a shift pattern of an automatic transmission according to a conventional technique
도2는 본 발명의 실시예에 따른 자동 변속기 변속 제어 장치의 구성을 도시한 블럭도2 is a block diagram showing the configuration of an automatic transmission control device according to an embodiment of the present invention.
도3은 본 발명의 실시예에 따른 자동 변속기 변속 제어 장치의 제어 방법을 도시한 흐름도3 is a flowchart showing a control method of an automatic transmission control device according to an embodiment of the present invention.
도4는 본 발명의 실시예에 따른 자동 변속기 변속 제어 장치의 시프트 패턴을 도시한 그래프4 is a graph showing a shift pattern of the automatic transmission control device according to the embodiment of the present invention.
본 발명은 자동 변속기 변속 제어 장치 및 그 제어 방법에 관한 것으로서, 더욱 상세하게는, 운전자의 의지에 부합되도록 킥 다운 변속을 개시하는 자동 변속기 변속 제어 장치 및 그 제어 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic transmission shift control device and a control method thereof, and more particularly, to an automatic transmission shift control device and a control method thereof that start a kick down shift to meet a driver's will.
일반적으로 자동 변속기를 장착한 차량은 토오크 컨버터(torque converter)와 변속기를 조합하고 있는 장치 및 제어 방법으로써, 인히비터 스위치와 오버 드라이버 스위치를 읽어 들여서 선택 레버의 위치를 판정하여 변속 제어 장치(TCU)에 입력하고, 모드 절환 스위치, 가속페달 스위치, 오일 온도 센서 및 출력축 회전 속도 등을 TCU에서 직접 읽어들이고, 스로틀 포지션 센서의 위치와 에어컨 릴레이 정보를 입력받아 스로틀 개도를 보정하여 TCU에 입력하고, 점화 펄스를 감지하여 엔진의 회전수를 연산하여 TCU에 입력한다. 이러한 TCU는 입력받은 정보를 이용하여 변속단을 결정하고 결정된 변속단에 따라 SCSV(shift Cotrol solenoid valve)를 구동하여 엔진의 회전속도 및 회전력을 변화시켜 구동륜에 전달하는 작용을 자동적으로 실시한다.In general, a vehicle equipped with an automatic transmission is a device and a control method that combines a torque converter and a transmission. It reads the inhibitor switch and the overdrive switch to determine the position of the selector lever and controls the shift control unit (TCU) The TCU directly reads the mode switching switch, the accelerator pedal switch, the oil temperature sensor, and the output shaft rotational speed, receives the position of the throttle position sensor and the air conditioner relay information, corrects the throttle opening degree, Pulses are sensed and the engine speed is calculated and input to the TCU. The TCU determines the speed change stage by using the input information and drives a shift cotrol solenoid valve (SCSV) according to the determined speed change stage to automatically change the rotation speed and the rotational force of the engine to transmit to the drive wheel.
제1도는 이러한 자동 변속기에 대한 시프트 패턴(shift patten)을 나타낸 것으로서, 적은 스로틀 개도의 일정한 차속으로 주행중 스로틀 개도를 갑자기 증가시키면 윗 방향으로 저단기어로의 변속선을 지나 저단으로 변속되어 큰 구동력을 얻을 수 있다. 여기서 스로틀 밸브를 많이 개방시킬 때에는 스로틀 밸브를 적게 개방시킬 때보다 저속 기어 영역이 길게 되어 있다. 이는 동일 차속에서 스로틀 밸브가 많이 열린 주행일 경우, 차량의 주행 저항이 큰 상태를 나타내는 것으로 구동력이 큰 저속 기어 주행 상태를 보다 오래 유지하기 때문이다.FIG. 1 shows a shift pattern for this automatic transmission. When the throttle opening degree is suddenly increased at a constant vehicle speed of a small throttle opening degree, the throttle opening degree is shifted to the lower side through the shift line to the lower gear in the upward direction, Can be obtained. When the throttle valve is opened a lot, the low speed gear region is longer than when the throttle valve is opened little. This is because, when the throttle valve is largely opened in the same vehicle speed, the running resistance of the vehicle is large and the low-speed gear traveling state in which the driving force is large is maintained for a longer time.
이러한 변속 패턴은 악셀 페달의 밟은 양을 스로틀 개도 센서에 의해 읽어들이고 차속을 변속 출력축에 설치된 속도 센서에 의해 읽어 들여 TCU가 변속단을 결정하므로 운전자가 급가속 의지로 악셀 페달을 완전히 즉 스로틀 개도율이 85% 이상이 되도록 밟으면 킥 다운(kick down:아래단으로의 변속) 변속을 실시하도록 변속 패턴이 설정되어 있다.This shift pattern reads the amount of stepping on the accelerator pedal by the throttle opening sensor and reads the speed of the vehicle by the speed sensor installed on the output shaft of the shift output shaft so that the TCU decides the speed change stage so that the accelerator pedal is fully accelerated to the throttle opening rate The shift pattern is set so as to perform a kick down (shift to the lower end) shift when the driver depresses the gear ratio to 85% or more.
제1도에서 제시된 예를 들어 설명하면, A점 상태로 주행 중이던 차량이 스로틀 밸브의 개도율이 85% 이상이 되도록 악셀 페달을 밟으면 차량의 상태는 변속 패턴에 따라 B점의 위치로 4단에서 2단으로 킥 다운 변속이 일어나고 차량은 저속 기어의 주행상태로 큰 구동력을 가지고 급속히 가속하게 된다.Referring to the example shown in FIG. 1, when the accelerator pedal is depressed such that the opening ratio of the throttle valve is equal to or greater than 85%, the state of the vehicle is shifted to the point B at the fourth stage The kickdown shift occurs in two stages, and the vehicle accelerates rapidly with a large driving force in the running state of the low gear.
그러나 운전자의 의사가 킥 다운 의지에 관계없이 보통의 가속 의지로 악셀 페달을 80% 정도로 C점으로 움직이려고 했을 때, 착오로 85%를 넘어버리면 운전자의 의지와 무관하게 킥 다운 변속이 발생하여 엔진회전수가 급상승하고, 운전자는 다시 악셀 페달을 떼게되고 위화감을 느끼게 되는 문제점을 가지고 있다.However, when the driver's doctor tried to move the accelerator pedal to the point C by about 80% with normal acceleration will regardless of the kick down will, if it exceeded 85% by mistake, the kick down shift occurs regardless of the driver's will, The driver has a problem in that he / she releases the accelerator pedal again and feels a sense of incongruity.
이러한 문제점을 해결하기 위해 종래의 기술에 따라 일부 차량에는 악셀 페달에 추가적으로 스위치와 스프링을 장착하게 되었다.In order to solve this problem, according to the conventional technology, some vehicles are equipped with switches and springs in addition to the accelerator pedal.
이렇게 추가된 스위치 또는 스프링은 스로틀 밸브의 개도율이 0∼85% 범위에서 힘을 줄때보다 훨씬 큰 힘을 주어야 85% 이상의 개도율이 가능하도록 하여 이러한 악셀 페달의 움직임에 따라 킥 다운 스위치가 온되고 TCU에서 킥 다운 정보를 입력받아 킥 다운 변속을 개시하도록 하여 운전자의 의지를 잘 반영하여 불의의 변속이 발생하지 않도록 하고 있다.The additional switch or spring is required to apply a force greater than 85% when the throttle valve opening ratio is in the range of 0 to 85%, so that the opening rate of the throttle valve is 85% or more. The TCU receives the kick-down information and starts the kick-down shift so that the driver's will is reflected well so that the unintentional shift does not occur.
그러나, 이러한 종래의 자동 변속기 변속 제어 장치는 킥 다운 변속을 스위치 또는 스프링을 장착해야 하기 때문에 공정이 추가되어 높은 생산 원가를 유발시키고 무조건 스로틀 밸브의 개도율이 85%만 넘으면 운전자의 의지와 관계없이 킥 다운 변속이 발생한다는 문제점을 가지고 있다.However, since the conventional automatic transmission control device requires a kick-down shift to be equipped with a switch or a spring, a process is added to cause a high production cost. If the opening rate of the unconditional throttle valve exceeds 85% A kick down shift occurs.
본 발명의 목적은 이러한 문제점을 해결하기 위한 것으로서, 생산 원가를 낮추는 동시에 급가속시에는 스로틀 밸브의 개도율이 80% 이상일 때에도 킥 다운 변속이 개시되고 액셀을 천천히 밟아도 스로틀 밸브의 개도율이 95% 이상이면 킥 다운 변속이 개시되도록 하는 데에 있다.SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a throttle valve control apparatus and a throttle valve control apparatus which can reduce a production cost and accelerate a throttle valve opening rate even when the throttle valve opening rate is 80% Or more, the kick down shift is started.
이러한 목적을 달성하기 위한 본 발명에 따른 자동 변속기 변속 제어 장치는, 스로틀 밸브의 개도율을 감지하는 스로틀 개도 감지 센서, 차속을 감지하는 속도 센서, 상기 속도 센서로부터 현재의 변속단을 판단하고 상기 스로틀 개도 감지 센서로부터 상기 스로틀 밸브의 개도율을 입력받아 개도율이 95% 이상이면 킥 다운 변속을 개시하도록 신호를 출력하고 그렇치않으면 상기 스로틀 밸브의 개도율이 80% 이상이고 개도율의 변화율을 계산하여 변화율이 20%/sec 이상이면 킥 다운 변속을 개시하도록 신호를 출력하고 그렇치않으면 정상적인 가속을 개시하도록 신호를 출력하는 TCU를 포함하고 있다.In order to achieve the above object, according to the present invention, there is provided an automatic transmission control device comprising: a throttle opening degree sensor for sensing an opening ratio of a throttle valve; a speed sensor for sensing a vehicle speed; If the rate of opening of the throttle valve is received from the opening degree sensor and the opening rate is 95% or more, a signal is output to start the kick down transmission. Otherwise, the rate of opening of the throttle valve is 80% And a TCU that outputs a signal to start a kick-down shift if the rate of change is 20% / sec or more, and outputs a signal to start normal acceleration if not.
그리고 이러한 목적을 달성하기 위한 본 발명에 따른 자동 변속기 변속 제어 장치의 제어 방법은, 스로틀 밸브의 개도율과 스로틀 밸브의 개도율을 계산하는 단계, 상기 스로틀 밸브의 개도율이 제1 임의값 이상이면 킥 다운 변속 신호를 출력하는 단계, 상기 스로틀 밸브의 개도율을 상기 제1 임의값 이하이면 스로틀 밸브의 개도율이 제2 임의값 이상이고 스로틀 밸브 개도율의 변화율이 임의값 이상이면 킥 다운 변속 신호를 출력하는 단계, 상기 스로틀 밸브의 개도율이 제2 임의값 이상이고 스로틀 밸브 개도율의 상기 변화율이 상기 임의값 이상인 조건에 만족하지 않으면 정상적인 가속 신호를 출력하는 단계를 포함하고 있다.To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a control method for an automatic transmission control device for an automatic transmission, comprising the steps of: calculating an opening ratio of a throttle valve and an opening ratio of a throttle valve; When the opening ratio of the throttle valve is equal to or greater than the second predetermined value and the rate of change of the throttle valve opening rate is equal to or greater than the arbitrary value when the opening ratio of the throttle valve is equal to or less than the first arbitrary value, And outputting a normal acceleration signal if the opening ratio of the throttle valve is equal to or greater than the second arbitrary value and the rate of change of the throttle valve opening rate is not equal to or greater than the arbitrary value.
본 발명에 따른 이러한 자동 변속 제어 장치에서는 TCU가 스로틀 포지션 센서로부터 스로틀 밸브의 개도율을 읽어들여 개도율이 95% 이상이면 무조건 킥 다운 변속을 개시하고 80% 이상의 범위에서 개도율을 갖는 경우에는 20%/sec로 스로틀 밸브의 개도율이 변화율을 갖는다면 킥 다운 변속을 개시하고 그렇치않으면 정상적으로 가속하게 된다.In the automatic shift control device according to the present invention, if the TCU reads the opening ratio of the throttle valve from the throttle position sensor, the kick-down shift starts unconditionally if the opening ratio is 95% or more, and 20 If the opening rate of the throttle valve has a rate of change in% / sec, the kick-down shift is started. Otherwise, the throttle valve normally accelerates.
그러면, 첨부한 도면을 참고로 하여 본 발명에 따른 자동 변속기 변속 제어 장치 및 제어 방법의 한 실시예를 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있을 정도로 상세히 설명한다.Hereinafter, an embodiment of an automatic transmission control device and a control method according to the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.
제2도는 본 발명의 실시예에 따른 자동 변속기 변속 제어 장치의 구성을 도시한 블록도이다.2 is a block diagram showing the configuration of an automatic transmission control device according to an embodiment of the present invention.
제2도에 도시한 바와 같이 본 발명의 실시예에 따른 자동 변속기 변속 제어 장치는 스로틀 밸브의 개도율을 감지하는 스로틀 개도 감지 센서(10), 차속을 감지하는 속도 센서(20), 속도 센서(10)로부터 현재의 변속단을 판단하고 스로틀 개도 감지 센서(20)로부터 스로틀 밸브의 개도율을 입력 받아 개도율이 95% 이상이면 킥 다운 변속을 개시하도록 신호를 출력하고 그렇치않으면 상기 스로틀 밸브의 개도율이 80% 이상이고 개도율의 변화율을 계산하여 변화율이 20%/sec 이상이면 킥 다운 변속을 개시하도록 신호를 출력하고 그렇치않으면 정상적인 가속을 개시하도록 신호를 출력하는 TCU(30)로 구성되어 있다.2, the automatic transmission control device according to the embodiment of the present invention includes a throttle opening degree sensor 10 for sensing an opening ratio of a throttle valve, a speed sensor 20 for sensing a vehicle speed, a speed sensor 10 and receives the opening ratio of the throttle valve from the throttle opening degree sensor 20 and outputs a signal to start the kick downshifting if the opening ratio is 95% or more. Otherwise, the opening degree of the throttle valve And a TCU 30 for outputting a signal to start a kick-down shift if the rate is 80% or more and a rate of change of the opening rate is 20% / sec or more, and if not, outputs a signal to start normal acceleration .
제3도는 본 발명의 실시예에 따른 자동 변속기 변속 제어 장치 및 제어 방법의 흐름을 도시한 흐름도이다.FIG. 3 is a flow chart showing a flow of an automatic transmission control device and a control method according to an embodiment of the present invention.
제3도에서 보는 바와 같이, TCU 내부에서는 스로틀 밸브의 개도율을 입력받아(S10) 95% 이상이면(S20) 킥 다운 변속을 실시하도록 신호를 출력하여 킥 다운 변속을 실시하도록 하고(S30) 95% 이하이면 스로틀 밸브의 개도율이 80% 이상인가를 판단하여 이상이면 스로틀 밸브의 개도율의 변화율을 계산하여(S10) 변화율이 20%/sec 이상이면(S40) 킥 다운 변속을 실시하도록 신호를 출력하고 그렇치않으면 정상적인 가속을 실시하도록 신호를 출력한다.(S50)As shown in FIG. 3, the TCU receives the opening rate of the throttle valve (S10). If it is not less than 95% (S20), it outputs a signal to perform a kick down shift so as to perform a kick down shift (S30) %, It is determined that the opening rate of the throttle valve is equal to or greater than 80%. If the change is greater than or equal to 20% / sec (S10), the rate of change in the opening rate of the throttle valve is calculated A signal is output so as to perform normal acceleration (S50)
제4도는 이러한 변속 패턴을 그래프로 나타낸 것으로서, 개도율이 80%이상인 경우에는 급가속시에만 킥 다운 변속이 실시되고 개도율이 95%가 넘으면 무조건 킥 다운 변속이 실시된다.Fig. 4 is a graph showing such a shift pattern. When the opening ratio is 80% or more, the kick down shift is performed only at the time of rapid acceleration and when the opening rate exceeds 95%, the kick down shift is performed unconditionally.
따라서, 본 발명에 따른 자동 변속기 변속 제어 장치 및 제어 방법은 두 가지의 조건 즉, 개도율이 80%이상인 경우에는 급가속시에만, 개도율이 95%가 넘으면 무조건 킥 다운 변속이 실시되도록 하여 불의의 변속이 일어나지 않게 하고 의지에 부합되면 80%에서 킥 다운 변속이 이루어지므로 보다 빨리 차량이 가속되는 효과가 있다.Therefore, the automatic transmission control device and the control method according to the present invention are capable of performing an unconditional kick-down shift when the opening ratio exceeds 95% under two conditions, that is, when the opening rate is 80% The vehicle is accelerated more rapidly because the kick down transmission is performed at 80%.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960034396A KR0158179B1 (en) | 1996-08-20 | 1996-08-20 | Shifting control device and its method for a/t |
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| KR1019960034396A KR0158179B1 (en) | 1996-08-20 | 1996-08-20 | Shifting control device and its method for a/t |
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| KR0158179B1 KR0158179B1 (en) | 1998-12-01 |
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| CN113483092A (en) * | 2021-06-15 | 2021-10-08 | 重庆长安汽车股份有限公司 | Control method for improving dynamic property of DCT (discrete cosine transformation) vehicle type in sudden accelerator stepping |
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| CN113483092A (en) * | 2021-06-15 | 2021-10-08 | 重庆长安汽车股份有限公司 | Control method for improving dynamic property of DCT (discrete cosine transformation) vehicle type in sudden accelerator stepping |
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