KR100308998B1 - Method for controlling damper clutch - Google Patents

Method for controlling damper clutch Download PDF

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Publication number
KR100308998B1
KR100308998B1 KR1019970079999A KR19970079999A KR100308998B1 KR 100308998 B1 KR100308998 B1 KR 100308998B1 KR 1019970079999 A KR1019970079999 A KR 1019970079999A KR 19970079999 A KR19970079999 A KR 19970079999A KR 100308998 B1 KR100308998 B1 KR 100308998B1
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South Korea
Prior art keywords
damper clutch
high speed
direct connection
speed direct
vehicle
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KR1019970079999A
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Korean (ko)
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KR19990059785A (en
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전병욱
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이계안
현대자동차주식회사
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Priority to KR1019970079999A priority Critical patent/KR100308998B1/en
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    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00External control of clutches
    • F16D48/06Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/064Control of electrically or electromagnetically actuated clutches
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/10System to be controlled
    • F16D2500/104Clutch
    • F16D2500/10443Clutch type
    • F16D2500/10468Fluid adhesion clutch
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
    • F16D2500/306Signal inputs from the engine
    • F16D2500/3067Speed of the engine
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
    • F16D2500/308Signal inputs from the transmission
    • F16D2500/30802Transmission oil properties
    • F16D2500/30803Oil temperature
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
    • F16D2500/308Signal inputs from the transmission
    • F16D2500/3082Signal inputs from the transmission from the output shaft
    • F16D2500/30825Speed of the output shaft
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
    • F16D2500/31Signal inputs from the vehicle
    • F16D2500/3108Vehicle speed
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
    • F16D2500/314Signal inputs from the user
    • F16D2500/31406Signal inputs from the user input from pedals
    • F16D2500/3144Accelerator pedal position
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/50Problem to be solved by the control system
    • F16D2500/504Relating the engine
    • F16D2500/5043Engine fuel consumption

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

PURPOSE: A control method for a damper clutch is provided to improve fuel efficiency by restricting abnormal fluctuation of engine rpm from excessive slip of a converter, and to extend the life span of an automatic transmission by improving the endurance of the damper clutch. CONSTITUTION: A damper clutch is composed of a travel state detecting unit(10) outputting an electric signal by detecting the travel state; a TCU(Transmission control unit)(20) deciding driving force condition at high speed traveling by receiving the electric signal from the travel state detecting unit, and outputting a duty control signal for varying the damper clutch direct connection range; and a driving unit(30) connecting or releasing the damper clutch according to the duty control signal from the TCU. Fuel efficiency is improved by restricting abnormal fluctuation of engine rpm from excessive slip of the torque converter.

Description

댐퍼 클러치 제어방법Damper Clutch Control Method

본 발명은 자동 변속기에 관한 것으로써, 더욱 상세하게는 비교적 고속 주행상태에서 댐퍼 클러치의 잦은 직결 및 해제를 방지하기 위한 댐퍼 클러치 제어방법에 관한 것이다.The present invention relates to an automatic transmission, and more particularly to a damper clutch control method for preventing frequent direct connection and release of the damper clutch in a relatively high speed driving state.

일반적으로 댐퍼 클러치는 도3에 도시되어 있듯이 변속 제어수단(이하 TCU라 칭함)의 메모리에 작동 영역 맵과 목표 슬립량이 설정되어 있어서, 스로틀 밸브 개도량과 터빈 회전수에 따라서 댐퍼 클러치를 작동시킨다.In general, as shown in Fig. 3, the damper clutch has an operating area map and a target slip amount set in a memory of a shift control means (hereinafter referred to as TCU) to operate the damper clutch according to the throttle valve opening amount and the turbine rotational speed.

따라서 상기와 같이 댐퍼 클러치가 작동되는 자동 변속 차량에서 비교적 고속으로 주행할 때 운전자는 주로 가속페달을 이용하여 차속을 제어한다.Therefore, when driving at a relatively high speed in the automatic transmission vehicle in which the damper clutch is operated as described above, the driver mainly controls the vehicle speed by using an accelerator pedal.

따라서 운전자가 일정 스로틀 개도를 유지하다가 약간의 감속 효과를 위해 가속페달에서 발을 살짝 뗀다거나 다시 밟는 동작을 반복하게되는 경우가 있다.As a result, the driver may maintain a constant throttle opening and then repeatedly lift or step on the accelerator pedal for a slight deceleration effect.

그러나 상기한 종래의 기술에서 운전자가 가속페달에서 발을 살짝 뗀다거나 다시 밟는 동작을 반복하게되는 경우 댐퍼 클러치는 고정된 맵에 의해 반복적으로 직결 및 해제가 이루어져 엔진 회전이 고르지 못하고 연비가 크게 저하되며 토크 컨버터의 과다한 슬립으로 인해 유온이 상승하는 등 자동 변속기의 내구성에 악 영향을 미치는 문제점이 있다.However, in the above-described conventional technology, when the driver repeatedly lifts or steps back on the accelerator pedal, the damper clutch is directly connected and released by a fixed map, resulting in uneven engine rotation and significantly lower fuel economy. Due to excessive slip of the torque converter, there is a problem that adversely affects the durability of the automatic transmission, such as an increase in oil temperature.

따라서 본 발명의 목적은 차량 주행시 비교적 고속 주행 상태에서 구동력 확보가 가능한 조건을 판단하여 상기 구동력 확보 가능한 조건 영역에서 댐퍼 클러치 직결영역을 가변시킴으로써 잦은 댐퍼 클러치의 직결 및 해제를 방지할 수 있는 댐퍼 클러치 제어장치 및 그 방법을 제공하기 위한 것이다.Therefore, an object of the present invention is to determine the conditions that can ensure the driving force in a relatively high speed driving state when driving the vehicle by changing the damper clutch direct connection area in the condition to ensure the driving force damper clutch control that can prevent the frequent connection and release of the damper clutch An apparatus and a method thereof are provided.

도1은 본 발명의 실시예에 따른 댐퍼 클러치 제어 장치 구성 블록도이고,1 is a block diagram of a damper clutch control device according to an embodiment of the present invention,

도2는 본 발명의 실시예에 따른 댐퍼 클러치 제어방법 동작 순서도이고,2 is a flowchart illustrating a damper clutch control method according to an embodiment of the present invention;

도3은 본 발명의 실시예에 따른 댐퍼 클러치 동작 영역 판단 그래프이다.3 is a graph illustrating a damper clutch operation region according to an embodiment of the present invention.

상기한 목적을 달성하기 위한 본 발명은 자동 변속기의 댐퍼 클러치 제어방법에 있어서, 차량 주행시 비교적 고속 주행 상태에서 구동력 확보가 가능한 조건을 판단하는 단계와; 상기 단계에서 구동력 확보 가능한 조건으로 판단되면 댐퍼 클러치 고속 직결영역을 유무를 판단하는 단계와; 상기 단계에서 댐퍼 클러치 고속 직결 영역이면 소정의 댐퍼 클러치 직결 듀티 제어신호를 출력하는 단계와; 상기 단계에서 고속 직결 영역이 아니면 소정의 댐퍼 클러치 해제 듀티 제어신호를 출력하는 단계를 포함하여 이루어지는 것을 특징으로 한다.According to an aspect of the present invention, there is provided a damper clutch control method for an automatic transmission, the method including: determining a condition capable of securing driving force in a relatively high speed driving state when the vehicle is driven; Determining whether or not the damper clutch high-speed direct connection region is determined as a condition capable of securing driving force in the step; Outputting a predetermined damper clutch direct connection duty control signal if the damper clutch is a high speed direct connection region in the step; And outputting a predetermined damper clutch release duty control signal if it is not the high speed direct connection area.

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 도1에 도시되어 있듯이 본 발명의 실시예에 따른 댐퍼 클러치의 제어 장치 구성은 차량의 주행상태에 따라 가변되어 출력되는 신호를 감지하여 소정의 전기신호를 출력하는 주행 상태 감지수단(10)과; 상기 주행 상태 감지수단(10)에서 출력되는 소정의 전기신호를 인가 받아 비교적 고속 주행 상태에서 구동력 확보가 가능한 조건을 판단하고 상기 구동력 확보 가능한 조건 영역에서 댐퍼 클러치 직결 영역을 가변시키는 소정의 듀티 제어신호를 출력하는 TCU(20)와; 상기 TCU(20)에서 출력되는 듀티 제어신호에 따라 듀티 제어하여 댐퍼 클러치를 직결 및 해제시키는 구동수단(30)으로 이루어져 있다.As shown in FIG. 1, the control device configuration of the damper clutch according to the embodiment of the present invention is a driving state detection means 10 for detecting a signal that is variable and output according to the driving state of the vehicle and outputs a predetermined electric signal. and; A predetermined duty control signal for determining a condition capable of securing driving force at a relatively high speed driving state by receiving a predetermined electric signal output from the driving state detecting means 10 and varying a damper clutch direct connection region in the condition region capable of securing driving force A TCU 20 for outputting; It consists of a driving means 30 for directly connecting and releasing the damper clutch by the duty control according to the duty control signal output from the TCU (20).

상기 주행 상태 감지수단(10)은 가속 페달의 동작 상태와 연동하여 개폐 상태가 가변되는 스로틀 밸브의 개도 정도를 감지하여 소정의 신호를 출력하는 스로틀 밸브 개도 감지부(11)와; 상기 가속페달의 동작 상태에 따라 차량의 출력축 회전수를 감지하여 차량의 주행속도에 상응하는 소정의 신호를 출력하는 차속 감지부(12)와; 상기 TCU(20)의 입력축과 연결되어 토오크 컨버터의 터빈축 회전 속도를 감지하여 소정의 신호를 출력하는 터빈축 회전수 감지부(13)와; 상기 차량 주행 시 엔진의 동작 상태에 따라 가변되는 크랭크축의 회전 속도를 검출하여 소정의 신호를 출력하는 엔진 회전수 감지부(14)와; 상기 차량 주행시 가변되어 출력되는 자동변속기 오일의 온도를 검출하여 소정의 전기신호를 출력하는 유온 감지부(15)와; 운전자의 가속페달 조작 상태에 따라 가변되어 출력되는 온/오프 신호를 검출하여 소정의 전기신호를 출력하는 가속페달 스위치(16)를 포함하여 이루어져 있다.The driving state detecting means 10 includes: a throttle valve opening degree detecting unit 11 for detecting a degree of opening of a throttle valve whose opening / closing state is variable in association with an operation state of an accelerator pedal and outputting a predetermined signal; A vehicle speed detector 12 which detects an output shaft rotational speed of the vehicle according to an operation state of the accelerator pedal and outputs a predetermined signal corresponding to the traveling speed of the vehicle; A turbine shaft rotational speed sensing unit 13 connected to the input shaft of the TCU 20 for sensing a turbine shaft rotational speed of the torque converter and outputting a predetermined signal; An engine rotation speed detection unit 14 for detecting a rotation speed of a crankshaft that is varied according to an operating state of the engine while outputting the vehicle and outputting a predetermined signal; An oil temperature detector 15 which detects a temperature of an automatic transmission oil that is variable and output when the vehicle is driven and outputs a predetermined electric signal; And an accelerator pedal switch 16 for detecting an on / off signal that is variable and output according to the driver's accelerator pedal operation state and outputting a predetermined electric signal.

상기한 구성에 의해 이루어진 댐퍼 클러치 제어방법을 도2를 참조하여 설명한다.A damper clutch control method made by the above configuration will be described with reference to FIG.

변속단을 4속으로 비교적 고속으로 주행중인 차량에서 TCU(20)는 댐퍼 클러치의 고속 직결 진입을 판단하기 위한 설정 변수인 고속 직결 FLAG가 0인가를 판단한다(S100,S110).The TCU 20 determines whether the high speed direct connection FLAG, which is a setting variable for determining the high speed direct connection of the damper clutch, is 0 in a vehicle that is traveling at a relatively high speed at the speed of 4 (S100 and S110).

상기에서 댐퍼 클러치의 고속 직결 진입을 판단하기 위한 설정 변수인 고속 직결 FLAG가 0인 경우, TCU(20)는 주행 차속이 설정된 소정의 차속인 95Kph 이상이고, 변속단이 4속이고, 현재로부터 변속기 댐퍼 클러치 제어 주기(n = 60ms)를 기준하여 차속 No(n-8)-No(n) = 480ms전까지의 차속(No)변화량이 설정된 소정의 기준값인 150rpm 이내에 포함되며, 이때 유온이 설정된 소정의 기준값인 50℃이상인 댐퍼 클러치 직결영역인가를 판단한다(S120~S140).When the high speed direct connection FLAG, which is a setting variable for determining the high speed direct connection of the damper clutch, is 0, the TCU 20 has a predetermined vehicle speed of 95 Kph or more, a shift stage of 4 speeds, and a transmission damper from the present. Based on the clutch control period (n = 60ms), the vehicle speed No (n-8) -No (n) = 480ms before the change in the vehicle speed (No) is included within the predetermined reference value 150rpm, wherein the oil temperature is set the predetermined reference value It is determined whether or not the damper clutch direct connection area is 50 ℃ or more (S120 ~ S140).

상기 단계(S120~S140)에서 댐퍼 클러치가 직결되는 영역 조건에 포함되는 경우, TCU(20)는 고속 직결 FLAG를 1로 설정하고, 변속단을 타 변속단으로 변속시키는 변속 요구 신호가 출력되었는가를 판단한다(S150,S160).When the damper clutch is included in the area condition in which the damper clutch is directly connected in the steps S120 to S140, the TCU 20 sets the high speed direct connection FLAG to 1 and outputs a shift request signal for shifting the shift stage to the other shift stage. It determines (S150, S160).

이때 상기 단계(S120∼S140)의 조건중 어느 한 조건이라도 만족하지 않으면 TCU(20)는 고속 직결 FLAG를 0으로 설정하고, 변속단을 타 변속단으로 변속시키기 위한 변속 요구 신호가 출력되었는가를 판단하는 단계를 수행한다(S141).At this time, if any of the conditions of steps S120 to S140 is not satisfied, the TCU 20 sets the high speed direct connection FLAG to 0 and determines whether a shift request signal for shifting the shift stage to the other shift stage is output. To perform the step (S141).

상기 단계(S120~S140)에서 변속단을 타 변속단으로 변속시키기 위한 변속 요구 신호가 출력된 경우, TCU(20)는 고속 직결 FLAG를 0으로 설정하고, 고속 직결 FLAG가 1인가를 판단한다(S170,S180).When the shift request signal for shifting the shift stage to the other shift stage is output in steps S120 to S140, the TCU 20 sets the high speed direct connection FLAG to 0 and determines whether the high speed direct connection FLAG is 1 ( S170, S180).

상기 단계(S180)에서 고속 직결 FLAG가 0인 경우, TCU(20)는 메모리에 저장되어 있는 통상의 댐퍼 클러치 작동 맵으로부터 직결 또는 해제 여부를 판단한다(S181).If the fast direct connection FLAG is 0 in step S180, the TCU 20 determines whether or not direct connection or release is performed from the normal damper clutch operation map stored in the memory (S181).

따라서 TCU(20)는 상기 판단된 댐퍼 클러치의 상태가 직결 조건인가를 판단하고(S182), 상기 판단된 댐퍼 클러치의 상태가 직결 조건인 경우, TCU(20)는 댐퍼 클러치를 직결시키기 위한 소정의 듀티 제어신호를 구동수단(30)으로 출력하여 댐퍼 클러치를 직결시킨다.Therefore, the TCU 20 determines whether the determined state of the damper clutch is a direct connection condition (S182), and when the determined state of the damper clutch is a direct connection condition, the TCU 20 determines a predetermined value for directly connecting the damper clutch. A duty control signal is output to the driving means 30 to directly connect the damper clutch.

반면에 상기 단계(S182)에서 판단된 댐퍼 클러치의 상태가 해제 조건인 경우, TCU(20)는 직결된 댐퍼 클러치를 해제시키기 위한 소정의 듀티 제어신호를 출력하여 직결된 댐퍼 클러치를 해제시킨다(S183).On the other hand, when the state of the damper clutch determined in the step (S182) is the release condition, the TCU 20 outputs a predetermined duty control signal for releasing the damper clutch directly connected to release the damper clutch directly connected (S183). ).

그러나 상기 단계(S110)에서 고속 직결 FLAG가 1인 경우, TCU(20)는 댐퍼 클러치가 직결된 상태인 것으로 판단하고, 변속단을 타 변속단으로 변속시키기 위한 변속 요구 신호가 출력되었는가를 판단한다(S160).However, when the high speed direct connection FLAG is 1 in step S110, the TCU 20 determines that the damper clutch is directly connected, and determines whether a shift request signal for shifting the shift stage to the other shift stage is output. (S160).

상기 단계(S160)에서 변속단을 타 변속단으로 변속시키기 위한 변속 요구 신호가 출력되지 않은 경우, TCU(20)는 주행 차속(No)이 설정된 소정의 기준값인 90Kph보다 같거나 작은가를 판단한다(S161).When the shift request signal for shifting the shift stage to the other shift stage is not output in step S160, the TCU 20 determines whether the traveling vehicle speed No is equal to or smaller than 90 Kph, which is a predetermined reference value ( S161).

상기에서 주행 차속(No)이 설정된 소정의 기준값인 90kph보다 같거나 작은 경우, TCU(20)는 고속 직결 FLAG를 0으로 설정하고, 고속 직결 FLAG가 1인가를 판단(S170,S180)을 수행한다.When the driving vehicle speed No is equal to or smaller than the predetermined reference value of 90 kph, the TCU 20 sets the high speed direct FLAG to 0 and determines whether the high speed direct FLAG is 1 (S170, S180). .

반면에 상기 주행 차속(No)이 설정된 소정의 기준값인 90kph보다 큰 경우, TCU(20)는 60ms 전부터 현재까지의 차속(No)감소량이 설정된 소정의 기준값 이상인가를 판단한다(S162).On the other hand, if the traveling vehicle speed No is greater than the predetermined reference value of 90 kph, the TCU 20 determines whether or not the amount of reduction of the vehicle speed No from 60 ms to the present is greater than or equal to the predetermined reference value (S162).

상기 TCU(20)가 60ms 전부터 현재까지의 차속(No)감소량이 설정된 소정의 기준값 이상인 경우, TCU(20)는 고속 직결 FLAG를 0으로 설정하고, 고속 직결 FLAG가 1인가를 판단(S170,S180)을 수행한다.When the TCU 20 is equal to or greater than a predetermined reference value set from 60ms before to the present, the TCU 20 sets the high speed direct FLAG to 0 and determines whether the high speed direct FLAG is 1 (S170, S180). ).

반면에 상기 TCU(20)가 60ms 전부터 현재까지의 차속(No)감소량이 설정된 소정의 기준값 이하인 경우, TCU(20)는 고속 직결 FLAG가 1인가를 판단하는 단계(S180)을 수행하여 고속 직결 FLAG가 1인 경우, 댐퍼 클러치를 직결시키기 위한 듀티 제어신호를 구동수단(30)에 출력한다(S190).On the other hand, if the TCU 20 is less than or equal to a predetermined reference value set from 60ms before to the present, the TCU 20 performs the step of determining whether the high speed direct FLAG is 1 (S180) and the high speed direct FLAG. When 1, the duty control signal for directly connecting the damper clutch is output to the driving means 30 (S190).

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 비교적 고속 주행 상태에서 구동력 확보가 가능한 조건을 판단하고, 상기 영역에서 댐퍼 클러치 직결영역을 가변시킴으로써 잦은 댐퍼 클러치의 직결 및 해제를 방지할 수 있고, 토크 컨버터의 과도한 슬립으로 인한 엔진 회전수 이상 변동을 방지할 수 있어 연비를 개선할 수 있으며, 댐퍼 클러치의 내구성을 향상시킬 수 있고, 자동 변속기의 내구 수명을 연장시킬 수 있는 효과가 있다.As described above, in the embodiment of the present invention, it is possible to prevent the frequent connection and release of the damper clutch by determining a condition capable of securing driving force in a relatively high speed driving state and by varying the damper clutch direct connection area in the region, and excessive torque converter It is possible to prevent the engine speed change due to the slip can improve fuel economy, improve the durability of the damper clutch, and has the effect of extending the endurance life of the automatic transmission.

Claims (5)

자동 변속기의 댐퍼 클러치 제어방법에 있어서, 차량 주행시 비교적 고속 주행 상태에서 구동력 확보가 가능한 조건을 판단하는 단계와; 상기 단계에서 구동력 확보 가능한 조건으로 판단되면 댐퍼 클러치 고속 직결영역을 유무를 판단하는 단계와; 상기 단계에서 댐퍼 클러치 고속 직결영역이면 소정의 댐퍼 클러치 직결 듀티 제어신호를 출력하는 단계와; 상기 단계에서 고속 직결영역이 아니면 소정의 댐퍼 클러치 해제 듀티 제어신호를 출력하는 단계를 포함하여 이루어지는 것을 특징으로 하는 댐퍼 클러치 제어방법.A method of controlling a damper clutch of an automatic transmission, the method comprising: determining a condition capable of securing driving force at a relatively high speed driving state when the vehicle is driven; Determining whether or not the damper clutch high-speed direct connection region is determined as a condition capable of securing driving force in the step; Outputting a predetermined damper clutch direct connection duty control signal if the damper clutch is a high speed direct connection region in the step; And outputting a predetermined damper clutch release duty control signal if the high speed direct connection area is not included in the step. 청구항 1에 있어서, 상기 댐퍼 클러치 고속 직결 판단은 주행 차속(No)이 설정된 소정의 차속이 이상이고, 주행 변속단이 4속이며, 현재로부터 소정의 설정 시간전까지의 차속(No)변화량이 설정된 소정의 기준값 이내 일 때 댐퍼 클러치의 고속 직결 진입을 판단하는 것을 포함하여 이루어진 댐퍼 클러치 제어방법.The said damper clutch high speed direct connection judgment is a predetermined | prescribed vehicle speed in which the traveling vehicle speed (No) is set more than, the traveling speed change stage is 4 speed, The predetermined | prescribed predetermined vehicle speed (No) change amount from the present time to a predetermined time is set. A damper clutch control method comprising determining a high speed direct entry of the damper clutch when within the reference value. 청구항 1에 있어서, 상기 댐퍼 클러치 고속 직결 해제 판단은 변속단이 목표 변속단으로 변속하기 위한 변속 제어신호가 출력되고, 주행 차량의 차속(No)이 설정된 기준 차속 이하이고, 설정된 소정의 시간 이전부터 현재까지의 차속 감소량이 설정 기준 rpm이상 일 때 댐퍼 클러치의 직결을 해제하도록 판단하는 것을 포함하여 이루어진 댐퍼 클러치 제어방법,The method of claim 1, wherein the damper clutch high-speed direct release determination includes outputting a shift control signal for shifting the shift stage to the target shift stage, and a vehicle speed (No) of the traveling vehicle is equal to or less than a predetermined reference vehicle speed, and before a predetermined time. A damper clutch control method comprising determining to release the direct connection of the damper clutch when the amount of vehicle speed reduction to date is greater than or equal to the set reference rpm, 청구항 1에 있어서, 상기 댐퍼 클러치 고속 직결 및 해제 듀티 제어 신호 출력은 변속단을 4속으로 비교적 고속 주행 단계중 일 때 댐퍼 클러치가 직결 FLAG가 0인가를 판단하는 단계와; 상기 단계에서 댐퍼 클러치가 직결FLAG가 0인 경우, 댐퍼 클러치의 고속 직결 조건을 판단하여 주행 차량이 댐퍼 클러치의 고속 직결 조건을 만족하면 고속 직결 FLAG를 1로 설정하는 단계와; 상기 단계에서 주행중인 차량이 댐퍼 클러치 고속 직결 해제 조건을 만족하는가를 판단하는 단계와; 상기 단계에서 주행중인 차량이 댐퍼 클러치 고속 직결 해제 조건을 만족하지 않으면 고속 직결 FLAG가 1로 설정되었는가를 판단하여 고속 직결 FLAG가 1로 설정된 경우, 댐퍼 클러치를 직결시키는 듀티 제어신호를 출력하는 단계를 포함하여 이루어진 댐퍼 클러치 제어방법,2. The method of claim 1, wherein the damper clutch high speed direct release and release duty control signal output includes: determining whether the damper clutch directly connects FLAG when the shift stage is at a relatively high speed during the four speed shift stages; Determining the high speed direct connection condition of the damper clutch by setting the high speed direct connection FLAG to 1 when the driving vehicle satisfies the high speed direct connection condition of the damper clutch when the damper clutch is directly connected FLAG in the step; Determining whether the vehicle driving in the step satisfies the damper clutch high speed direct release condition; If the high speed direct connection FLAG is set to 1 when the vehicle driving in the step does not satisfy the damper clutch high speed direct release condition, outputting a duty control signal for directly connecting the damper clutch when the high speed direct connection FLAG is set to 1 Damper clutch control method, including 청구항 4에 있어서, 상기 댐퍼 클러치 고속 직결 조건은 상기 고속 직결 조건중 한가지 조건이라도 만족하지 않으면 고속 직결 FLAG를 0으로 설정하는 단계와; 상기 단계에서 고속 직결 FLAG를 0으로 설정됨에 따라 댐퍼 클러치 해제 조건을 만족하는가를 판단하는 단계와; 상기 단계에서 댐퍼 클러치 해제 조건을 만족하지 않은 경우, 고속 직결 FLAG가 1인가를 판단하는 단계와; 상기 단계에서 고속 직결 FLAG가 0인 경우, 통상의 댐퍼 클러치 작동 맵으로부터 직결 또는 해제 여부를 판정하는 단계와; 상기 단계에서 댐퍼 클러치가 직결인 경우, 댐퍼 클러치를 직결시키기 위한 소정의 듀티 제어신호를 출력하는 단계를 더 포함하여 이루어진 댐퍼클러치 제어방법.The method of claim 4, wherein the damper clutch high speed direct connection condition comprises: setting a high speed direct connection FLAG to 0 if at least one of the high speed direct connection conditions is not satisfied; Determining whether the damper clutch release condition is satisfied as the high speed direct connection FLAG is set to 0 in the step; Determining that the high speed direct connection FLAG is 1 when the damper clutch release condition is not satisfied in the step; In the step, when the high speed direct connection FLAG is 0, determining whether direct connection or release is performed from a normal damper clutch actuation map; And outputting a predetermined duty control signal for directly connecting the damper clutch when the damper clutch is directly connected in the above step.
KR1019970079999A 1997-12-31 1997-12-31 Method for controlling damper clutch KR100308998B1 (en)

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