KR100298756B1 - Method for controlling damper clutch of automatic transmission - Google Patents

Method for controlling damper clutch of automatic transmission Download PDF

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Publication number
KR100298756B1
KR100298756B1 KR1019970043975A KR19970043975A KR100298756B1 KR 100298756 B1 KR100298756 B1 KR 100298756B1 KR 1019970043975 A KR1019970043975 A KR 1019970043975A KR 19970043975 A KR19970043975 A KR 19970043975A KR 100298756 B1 KR100298756 B1 KR 100298756B1
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South Korea
Prior art keywords
damper clutch
gradient
reference value
vehicle
road
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KR1019970043975A
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Korean (ko)
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KR19990020513A (en
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김현
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이계안
현대자동차주식회사
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Priority to KR1019970043975A priority Critical patent/KR100298756B1/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
    • 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
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H2059/405—Rate of change of output shaft speed or vehicle speed
    • 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
    • F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
    • F16H2059/465—Detecting slip, e.g. clutch slip ratio
    • 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
    • F16H2059/6807—Status of gear-change operation, e.g. clutch fully engaged
    • 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
    • F16H2061/0075—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 a particular control method
    • F16H2061/0081—Fuzzy logic

Abstract

PURPOSE: A method for controlling a damper clutch of an automatic transmission is provided to improve the traveling experience by variably operating a damper clutch depending on a gradient and preventing the degradation of a driving force and booming phenomenon. CONSTITUTION: A method for controlling a damper clutch of an automatic transmission comprises the steps of comparing a gradient of a road to a reference value(3%) by using a gradient sensing value(RS)(S100), outputting a damper clutch direct engagement signal to a drive unit if the gradient of the road is smaller than the reference value(S200), removing a slip direct engagement area if the gradient of the road is larger than the reference value or the same(S110), comparing the gradient of the road to another reference value(5%)(S120), comparing the gradient of the road to another reference value(7%) if the gradient of the road is over 5%(S130), moving to an operating area c if the gradient of the road is larger than 7%(S140), and moving to an operating area b and c if the gradient of the road is smaller than 7%(S150).

Description

자동 변속기의 댐퍼 클러치 제어방법Damper clutch control method of automatic transmission

본 발명은 자동 변속기의 댐퍼 클러치 제어방법에 관한 것으로써, 더욱 상세히 설명하자면 차량을 주행중, 구배로 주행시 중, 저속 영역에서 댐퍼 클러치가 작동하여 직결이 될 경우, 구동력 감소와 부밍(Booming) 현상 등을 방지하기 위한 자동 변속기의 댐퍼 클러치 제어방법에 관한 것이다.The present invention relates to a method for controlling a damper clutch of an automatic transmission. More specifically, the damper clutch operates directly in a low speed region while driving a vehicle, while driving in a gradient, and reduces driving force and booming. It relates to a damper clutch control method of the automatic transmission for preventing the.

일반적으로 댐퍼클러치는 토크 컨버터 내에 위치하여 차량의 주행상태가 첨부한 도1에 도시되어 있듯이 댐퍼 클러치 동작영역에 포함되면, 자동 변속제어장치의 제어신호에 의해 해당하는 솔레노이드 밸브가 작동되어 댐퍼 클러치를 작동시켜 줌으로써, 차량 엔진의 동력을 자동변속기에 바로 전달하여 동력전달 효율을 좋게 하고, 연비를 향상시키는 장점이 있다.In general, when the damper clutch is located in the torque converter and the driving state of the vehicle is included in the damper clutch operating region as shown in FIG. 1, the corresponding solenoid valve is operated by the control signal of the automatic transmission control unit to operate the damper clutch. By operating, the power of the vehicle engine is directly transmitted to the automatic transmission to improve the power transmission efficiency and has the advantage of improving fuel economy.

따라서 종래에는 첨부한 도1과 같이 차량의 주행상태가 댐퍼 클러치 동작 영역에 포함되면 댐퍼 클러치가 동작하여 차량의 구동력을 증가시켰다.Therefore, in the related art, when the driving state of the vehicle is included in the damper clutch operating region as shown in FIG. 1, the damper clutch operates to increase driving force of the vehicle.

그러나 상기한 종래의 기술은 차량의 주행상태에 따른 댐퍼클러치 동작영역이 설정되어 주행도로와 무관하게 댐퍼클러치가 작동하여 주행함으로 차량이 구배로 주행시 중, 저속영역에서 댐퍼 클러치가 작동하여 직결될 경우, 차량의 구동력 감소와 부밍(Booming) 등을 유발하는 문제점이 있다.However, in the above-described conventional technology, when the damper clutch operating region is set according to the driving state of the vehicle, and the damper clutch is operated regardless of the driving road, the damper clutch is directly connected by operating the damper clutch in the low speed region while driving the vehicle in a gradient. There is a problem of reducing the driving force of the vehicle and causing booming.

따라서 본 발명의 목적은 상기한 문제점을 해결하기 위해 안출된 것으로써, 자동 변속기 차량에서 퍼지 제어(Fuzzy Control)를 위한 입력요소의 하나인 구배로 인식량(RS)을 이용하여 구배로 정도에 따라 댐퍼 클러치의 동작영역이 슬립 영역인 경우, 이를 삭제하거나 완전 직결영역인 경우 축소하여 구배로 주행시 댐퍼 클러치 동작에 따른 구동력 저하와 부밍 현상 등을 방지하여 승차감을 향상시키기 위한 자동 변속기의 댐퍼 클러치 제어방법을 제공하기 위한 것이다.Therefore, an object of the present invention is to solve the above problems, according to the degree of the gradient path using the gradient recognition amount (RS) which is one of the input elements for fuzzy control in the automatic transmission vehicle. Method for controlling damper clutch of automatic transmission to improve riding comfort by preventing driving force drop and booming phenomenon due to damper clutch operation when driving by gradient by deleting it if it is slip area or if it is completely connected area. It is to provide.

상기한 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,

자동 변속기를 장착한 차량에 있어서, 주행차량이 댐퍼 클러치 동작영역에 포함되면 퍼지 제어를 위한 입력요소의 하나인 구배도 인식량(RS)을 이용하여 차량 주행도로의 구배도가 설정된 기준값인 3%보다 크거나 같은가를 판단하는 단계와;In a vehicle equipped with an automatic transmission, when the driving vehicle is included in the damper clutch operating region, the slope of the vehicle driving road is set to 3%, which is a reference value set using the gradient recognition amount RS, which is an input element for fuzzy control. Determining whether greater than or equal to;

상기에서 차량 주행도로의 구배도가 설정된 기준값인 3%보다 크거나 같은 경우, 댐퍼 클러치 동작 영역의 슬립 직결영역을 삭제한 후 댐퍼 클러치를 결합시키지 않은 상태로 주행하고 차량 주행도로의 구배도가 설정된 기준값인 5%보다 크거나 같은가를 판단하는 단계를 포함하여 이루어지는 것을 특징으로 한다.If the slope of the vehicle driving road is greater than or equal to the set reference value 3%, the slip direct connection area of the damper clutch operating area is deleted and then the vehicle is driven without the damper clutch engaged and the slope of the vehicle driving road is set. And determining whether the reference value is greater than or equal to 5%.

도1은 종래의 자동 변속기 댐퍼 클러치 제어 패턴도이고,1 is a conventional automatic transmission damper clutch control pattern diagram,

도2는 본 발명의 실시예에 따른 자동 변속기의 댐퍼 클러치 제어 패턴도이고,2 is a damper clutch control pattern diagram of an automatic transmission according to an embodiment of the present invention;

도3의 (a)와(b)는 본 발명의 실시예에 따른 구배로 에서 자동 변속기의 댐퍼 클러치 결합상태 그래프이고,Figure 3 (a) and (b) is a damper clutch engagement state graph of the automatic transmission in the gradient road according to an embodiment of the present invention,

도4는 본 발명의 실시예에 따른 자동 변속기의 댐퍼 클러치 제어장치 구성 블럭도이고,4 is a block diagram of a damper clutch control device of an automatic transmission according to an embodiment of the present invention;

도5는 본 발명의 실시예에 따른 자동 변속기의 댐퍼 클러치 제어방법 동작 순서도이다.5 is a flowchart illustrating a damper clutch control method of an automatic transmission according to an exemplary embodiment of the present invention.

상기한 목적을 구체적으로 달성하여 실현할 수 있는 본 발명의 실시예를 첨부한 도면을 참조로 상세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention, which can be achieved and realized in detail by the above objects, will be described in detail with reference to the accompanying drawings.

첨부한 도4에 도시되어 있듯이, 본 발명의 실시예에 따른 자동 변속기의 댐퍼 클러치 제어장치 구성은, 차량의 주행상태 따라 차량의 상태가 가변되어 출력되어지는 신호를 인가받아 해당하는 전기신호를 출력하는 차량 주행상태 감지수단(10)과, 상기 차량 주행상태 감지수단(10)에서 출력되는 신호를 인가받아 판독하여 구배로 정도에 따라 댐퍼 클러치의 동작영역이 슬립 영역인 경우, 이를 삭제하거나 완전 직결 영역인 경우, 이를 축소하는 댐퍼 클러치 동작 제어신호를 출력하는 제어 수단(20)과, 상기 제어 수단(20)에서 출력되는 댐퍼 클러치 동작 제어신호에 의해 댐퍼클러치를 동작시켜 차량의 구동력을 향상시키는 구동 수단(30)으로 이루어져 있다.As shown in FIG. 4, the damper clutch control device of the automatic transmission according to the embodiment of the present invention is configured to output a corresponding electric signal by receiving a signal that is output by varying the state of the vehicle according to the driving state of the vehicle. If the operating area of the damper clutch is a slip area according to the degree of the gradient path, the vehicle driving state detecting means 10 and the signal output from the vehicle driving state detecting means 10 are applied and read, and this is deleted or completely connected. In the case of an area, the control means 20 outputs a damper clutch operation control signal for reducing this, and the damper clutch is operated by the damper clutch operation control signal output from the control means 20 to drive the driving force of the vehicle. Means 30.

상기에 있어서, 차량 주행상태 감지수단(10)은, 가속 페달의 동작 상태에 연동하여 개폐 상태가 가변되는 스로틀 밸브의 개도 정도를 감지하여 해당 신호를 출력하는 스로틀 밸브 개도 감지부(11)와, 차량의 주행속도를 감지하여 해당 신호를 출력하는 차속 감지부(12), 그리고 변속기의 입력축과 연결되어 있는 토오크 컨버터의 터빈축의 회전 속도를 감지하여 해당하는 신호를 출력하는 터빈축 회전수 감지부(13) 및 엔진의 동작 상태에 따라 가변되는 크랭크축의 회전 속도를 검출하여 해당하는 신호를 출력하는 엔진 회전수 감지부(14), 운전자의 가속페달 조작에 따라 가변되는 '온','오프' 신호를 전기적인 신호로 출력하는 가속페달 스위치(15), 자동 변속기의 동작 상태에 따라 변속기 오일의 온도를 검출하여 해당하는 전기적인 신호로 출력하는 유온 감지부(16), 그리고 차량의 구배로 주행시 구배도를 인식하여 해당하는 전기적인 신호를 출력하는 구배로 감지부(17)를 포함하여 이루어져 있다.In the above, the vehicle driving state detection means 10, the throttle valve opening degree detection unit 11 for detecting the opening degree of the throttle valve whose opening and closing state is variable in conjunction with the operation state of the accelerator pedal and outputs a corresponding signal; A vehicle speed detecting unit 12 for detecting a driving speed of a vehicle and outputting a corresponding signal, and a turbine shaft rotation speed detecting unit for detecting a rotation speed of a turbine shaft of a torque converter connected to an input shaft of a transmission and outputting a corresponding signal ( 13) and an engine speed detection unit 14 which detects the rotational speed of the crankshaft which is variable according to the operating state of the engine and outputs a corresponding signal, and an 'on' and 'off' signal which is variable according to the driver's accelerator pedal operation. Accelerator pedal switch (15) for outputting an electric signal as a sense of oil temperature to detect the temperature of the transmission oil according to the operating state of the automatic transmission and output as a corresponding electrical signal It includes a branch 16, and a gradient detecting unit 17 for recognizing a gradient diagram when the vehicle is driven in a gradient and outputting a corresponding electric signal.

상기한 구성에 의해 이루어진 자동 변속기의 댐퍼 클러치 제어방법을 첨부한 도5를 참조하여 상세히 설명한다.The damper clutch control method of the automatic transmission made by the above configuration will be described in detail with reference to FIG.

차량이 주행을 시작하면 제어 수단(20)은 차량 주행상태 감지수단(10)에서 출력되는 신호에 의해 차량의 주행상태가 댐퍼 클러치 동작영역에 포함되는가를 판단한다.When the vehicle starts to travel, the control means 20 determines whether the driving state of the vehicle is included in the damper clutch operation region by the signal output from the vehicle driving state detecting means 10.

따라서, 상기의 제어수단(20)은 주행차량이 댐퍼 클러치 동작영역에 포함됨에 따라 퍼지 제어를 위한 입력요소의 하나인 구배도 인식량(RS)을 이용하여 차량 주행도로의 구배도가 설정된 기준값인 3%보다 크거나 같은가를 판단하게 된다(S100).Therefore, the control means 20 is a reference value set by the gradient degree of the vehicle driving road using the gradient degree recognition amount RS which is one of the input elements for the purge control as the traveling vehicle is included in the damper clutch operation region. It is determined whether greater than or equal to 3% (S100).

상기에서 차량 주행도로의 구배도가 설정된 기준값인 3%보다 크거나 같은 경우, 제어수단(20)은 첨부한 도2와 3의 (a)에 도시되어 있는 댐퍼 클러치 동작 영역의 슬립 직결영역인 a영역을 삭제한 후, 댐퍼 클러치를 결합시키지 않은 상태로 주행시킨다(S100).When the slope of the vehicle driving road is greater than or equal to the set reference value 3%, the control means 20 is a slip direct connection area of the damper clutch operating region shown in (a) of FIGS. 2 and 3. After the region is deleted, the damper clutch is driven without being coupled (S100).

하지만, 상기에서 차량 주행도로의 구배도가 설정된 기준값인 3%보다 작은 경우에, 제어수단(20)은 통상적인 댐퍼 클러치 직결제어신호를 구동수단(30)에 출력한다(S200).However, when the gradient of the vehicle driving road is smaller than the set reference value 3%, the control means 20 outputs the normal damper clutch direct control signal to the drive means 30 (S200).

상기 단계(S110)에 이어, 차량 주행도로의 구배도가 설정된 기준값인 3%보다 크거나 같은 경우, 상기 제어수단(20)은 차량 주행도로의 구배도가 설정된 기준값인 5%보다 크거나 같은가를 판단한다(S120).After the step S110, when the slope of the vehicle driving road is greater than or equal to 3% which is a set reference value, the control means 20 determines whether the slope of the vehicle driving road is greater than or equal to 5% which is a set reference value. Determine (S120).

상기에서 차량 주행도로의 구배도가 설정된 기준값인 5%보다 크거나 같은 경우, 제어수단(20)은 차량 주행도로의 구배도가 설정된 기준값인 7%보다 크거나 같은가를 판단한다(S130).If the slope of the vehicle driving road is greater than or equal to 5% of the set reference value, the control means 20 determines whether the slope of the vehicle driving road is greater than or equal to 7% of the set reference value (S130).

상기에서 차량 주행도로의 구배도가 설정된 기준값인 7%보다 크거나 같은 경우, 제어수단(20)은 첨부한 도2에 도시되어 있듯이 댐퍼 클러치 작동 영역을 c점으로 완전히 이동시켜, 즉, b∼c구간을 삭제한 후, 댐퍼 클러치를 완전히 직결시키기 위한 제어신호를 구동수단(30)에 출력한다(S140).When the gradient of the vehicle driving road is greater than or equal to the set reference value of 7%, the control means 20 completely moves the damper clutch operating region to point c as shown in FIG. After the c section is deleted, a control signal for completely connecting the damper clutch is output to the driving means 30 (S140).

하지만, 상기에서 차량 주행도로의 구배도가 설정된 기준값인 7%보다 작은 경우, 제어수단(20)은 첨부한 도2와 도3의 (b)에 도시되어 있듯이 댐퍼 클러치 작동 영역을 차량의 구배도 정도에 맞게 b∼c점 사이로 이동시켜 댐퍼 클러치를 완전 직결시키기 위한 제어신호를 구동수단(30)에 출력한다(S150).However, when the gradient of the vehicle driving road is smaller than the set reference value of 7%, the control means 20 controls the damper clutch operating region as shown in FIGS. 2 and 3 (b). The control signal for completely connecting the damper clutch is output to the driving means 30 by moving it between the points b to c according to the accuracy (S150).

또한 상기(S120)에서 차량 주행도로의 구배도가 설정된 기준값인 5%보다 작은 경우, 제어수단(20)은 첨부한 도2와 3의 (a)에 도시되어 있는 댐퍼 클러치 동작 영역의 슬립 직결영역인 a영역만을 삭제한 후, 댐퍼 클러치를 결합시키지 않은 상태로 주행한다.Also, when the gradient of the vehicle driving road is less than 5%, the set reference value in S120, the control means 20 includes a slip direct connection area of the damper clutch operation region shown in FIGS. 2 and 3 (a). After deleting only the area a, the vehicle travels without the damper clutch engaged.

상기한 실시예는 가장 바람직한 실시예를 설명한 것으로써, 이에 한정되는 것은 아니며, 상기 실시예로부터 용이하게 설명할 수 있는 것도 본 발명에 포함된다.The above embodiments are described as the most preferred embodiments, and the present invention is not limited thereto, and the embodiments can be easily described from the above embodiments.

이상에서와 같이 본 발명의 실시예서 자동 변속기의 퍼지 제어(Fuzzy Control)를 위한 입력요소의 하나인 구배로 인식량(RS)을 이용하여 구배로 정도에 따라 댐퍼 클러치의 동작영역이 슬립 영역인 경우 삭제하거나 완전 직결 영역인 경우 축소하여 구배로 주행시 댐퍼 클러치 동작에 따른 구동력 저하와 부밍현상 등을 방지하여 승차감을 향상시키기 위한 효과를 가진 자동 변속기의 댐퍼 클러치 제어방법을 제공할 수 있다.As described above, when the operation region of the damper clutch is a slip region according to the grade of the grade using the gradient recognition amount RS, which is one of the input elements for the fuzzy control of the automatic transmission according to the embodiment of the present invention. In the case of a deleted or completely direct connection area, a damper clutch control method of an automatic transmission having an effect of improving driving comfort by preventing driving force degradation and booming phenomenon due to damper clutch operation when driving in a gradient can be provided.

Claims (3)

자동 변속기를 장착한 차량에 있어서, 주행차량이 댐퍼 클러치 동작영역에 포함되면 퍼지 제어를 위한 입력요소의 하나인 구배도 인식량(RS)을 이용하여 차량 주행도로의 구배도가 설정된 기준값인 3%보다 크거나 같은가를 판단하는 단계와;In a vehicle equipped with an automatic transmission, when the driving vehicle is included in the damper clutch operating region, the slope of the vehicle driving road is set to 3%, which is a reference value set using the gradient recognition amount RS, which is an input element for fuzzy control. Determining whether greater than or equal to; 상기에서 차량 주행도로의 구배도가 설정된 기준값인 3%보다 크거나 같은 경우, 댐퍼 클러치 동작 영역의 슬립 직결영역인 a영역을 삭제한 후, 댐퍼 클러치를 결합시키지 않은 상태로 주행하고, 차량 주행도로의 구배도가 설정된 기준값인 5%보다 크거나 같은가를 판단하는 단계와;If the slope of the vehicle driving road is greater than or equal to the set reference value 3%, the area a, which is a slip direct connection area of the damper clutch operating area, is deleted, and then the vehicle is driven without the damper clutch engaged. Determining whether the gradient is greater than or equal to 5%, the set reference value; 차량 주행도로의 구배도가 설정된 기준값인 3%보다 작은 경우, 통상적인 댐퍼 클러치 직결 제어신호를 출력하는 단계를 포함하여 이루어지는 것을 특징으로 하는 자동 변속기의 댐퍼 클러치 제어방법.And outputting a normal damper clutch direct connection control signal when the gradient of the vehicle driving road is smaller than the set reference value of 3%. 청구항 1에 있어서, 차량 주행도로의 구배도가 설정된 기준값인 5%보다 크거나 같은 경우, 차량 주행도로의 구배도가 설정된 기준값인 7%보다 크거나 같은가를 판단하는 단계와;The method of claim 1, further comprising: determining whether the slope of the vehicle driving road is greater than or equal to 5%, the set reference value, when the slope of the vehicle driving road is greater than or equal to the set reference value; 상기에서 차량 주행도로의 구배도가 설정된 기준값인 7%보다 크거나 같은 경우, 댐퍼 클러치 작동 영역을 c점으로 완전히 이동시킨 후, 댐퍼 클러치를 완전히 직결시키기 위한 제어신호를 출력하는 단계를 더 포함하여 이루어진 자동 변속기의 댐퍼 클러치 제어방법.If the gradient of the vehicle driving road is greater than or equal to the set reference value of 7%, completely moving the damper clutch operating region to point c, and then outputting a control signal for completely connecting the damper clutch; Damper clutch control method of the automatic transmission made. 청구항 2에 있어서, 차량 주행도로의 구배도가 설정된 기준값인 5%보다 작은 경우, 댐퍼 클러치 동작 영역의 슬립 직결영역인 a영역만을 삭제한 후 댐퍼 클러치를 결합시키지 않은 상태로 주행하는 단계와;The method of claim 2, further comprising: when the gradient of the vehicle driving road is smaller than 5%, the set reference value, deleting only a region, which is a slip direct connection region of the damper clutch operating region, and then driving the vehicle without the damper clutch coupled; 차량 주행도로의 구배도가 설정된 기준값인 7%보다 작은 경우, 댐퍼 클러치 작동 영역을 차량의 구배도 정도에 맞게 b∼c점 사이로 이동시켜 댐퍼 클러치를 완전 직결시키기 위한 제어신호를 출력하는 단계를 포함하여 이루어진 자동 변속기의 댐퍼 클러치 제어방법.And outputting a control signal for completely connecting the damper clutch by moving the damper clutch operating region between points b and c according to the degree of gradient of the vehicle when the gradient of the vehicle driving road is smaller than the set reference value of 7%. Damper clutch control method of the automatic transmission made by.
KR1019970043975A 1997-08-30 1997-08-30 Method for controlling damper clutch of automatic transmission KR100298756B1 (en)

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