KR100405739B1 - Method of controlling damper clutch for an automatic transmission - Google Patents

Method of controlling damper clutch for an automatic transmission Download PDF

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Publication number
KR100405739B1
KR100405739B1 KR10-2001-0059603A KR20010059603A KR100405739B1 KR 100405739 B1 KR100405739 B1 KR 100405739B1 KR 20010059603 A KR20010059603 A KR 20010059603A KR 100405739 B1 KR100405739 B1 KR 100405739B1
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South Korea
Prior art keywords
speed
turbine
damper clutch
turbine speed
booming
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KR10-2001-0059603A
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Korean (ko)
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KR20030026559A (en
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박세종
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현대자동차주식회사
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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
    • F16H59/74—Inputs being a function of engine parameters
    • F16H59/78—Temperature
    • 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
    • F16H2059/385—Turbine 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
    • 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
    • F16H2061/0012—Transmission control for optimising power output of driveline

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

Abstract

댐퍼 클러치의 직결 상태에서의 부밍(Boomming) 발생을 억제하여 운전 성능을 향상시킬 목적으로;To suppress the occurrence of booming in the direct connection state of the damper clutch to improve driving performance;

차량의 운행중 스로틀 량과 터빈 회전수가 댐퍼 클러치의 직결 조건에 만족하면, 현재의 터빈 회전수 변화속도를 기본 터빈 회전수 변화속도와 경미한 부밍 발생 터빈 회전수 변화속도, 심함 부밍 터빈 회전수 변화속도로 구분하여 댐퍼 클러치를 제어하는 자동 변속기의 댐퍼 클러치 제어방법을 제공한다.If the throttle amount and turbine speed during the operation of the vehicle are satisfied with the condition of the damper clutch, the current turbine speed change speed is changed to the basic turbine speed change speed, slight booming occurrence turbine speed change speed, and severe booming turbine speed change speed. The present invention provides a damper clutch control method of an automatic transmission that classifies and controls the damper clutch.

Description

자동 변속기의 댐퍼 클러치 제어방법{METHOD OF CONTROLLING DAMPER CLUTCH FOR AN AUTOMATIC TRANSMISSION}How to control damper clutch of automatic transmission {METHOD OF CONTROLLING DAMPER CLUTCH FOR AN AUTOMATIC TRANSMISSION}

본 발명은 차량용 자동 변속기에 적용되는 댐퍼 클러치의 제어방법에 관한 것으로서, 보다 상세하게는 댐퍼 클러치의 직결 상태에서 부밍(Boomming) 발생시 터빈 회전수의 변화 속도를 통해 부밍 발생 정도를 검출하여 직결 초기 터빈 회전수에 추가 회전수를 가산하여 작동 진입 영역을 축소시킴으로써, 부밍 발생을 억제하여 운전 성능을 향상시킬 수 있도록 한 댐퍼 클러치의 제어방법에 관한 것이다.The present invention relates to a control method of a damper clutch applied to an automatic transmission for a vehicle, and more particularly, directly detects the degree of booming through the speed of change in turbine speed when booming occurs in a direct connection state of the damper clutch. The present invention relates to a control method of a damper clutch, in which an additional rotational speed is added to the rotational speed to reduce an operation entry area, thereby suppressing the occurrence of booming to improve driving performance.

예컨대, 자동 변속기에 있어서의 댐퍼 클러치는 동력 전달효율을 증대시켜 연비를 향상시킬 목적으로 토오크 컨버터내에 배치된다.For example, a damper clutch in an automatic transmission is disposed in a torque converter for the purpose of increasing power transmission efficiency and improving fuel economy.

이러한 댐퍼 클러치는 차량의 운전 상태에 따라 작동 및 비작동 제어되는데, 이들 제어요소로서는 스로틀 개도량과 터빈 회전수의 조건에 따라 제어된다.These damper clutches are operated and deactivated in accordance with the driving state of the vehicle, and these control elements are controlled in accordance with the conditions of the throttle opening amount and the turbine speed.

즉, 이의 제어과정을 보다 구체적으로 살펴보면, 도 4에서와 같이, 엔진이 시동된 상태에서(S200) 스로틀 량이 직결 진입조건을 만족하는가를 판단하여(S210), 이 조건을 만족하면 터빈 회전수가 직결조건에 만족하는가를 판단하게 된다(S220).That is, looking at the control process in more detail, as shown in Figure 4, it is determined whether the throttle amount satisfies the direct entry condition in the engine start state (S200) (S210), if this condition is satisfied the turbine speed is directly connected It is determined whether the condition is satisfied (S220).

상기 S220 단계에서 조건을 만족하면, 완전 직결의 상태로 댐퍼 클러치를 제어하게 된다(S230).If the condition is satisfied in step S220, the damper clutch is controlled in a state of being directly connected (S230).

그러나 상기와 같이 단순히 스로틀 개도량과 터빈 회전수의 조건에 따라서 댐퍼 클러치를 제어하는 경우에 있어서는, 댐퍼 클러치의 직결 초기에 부밍이 발생될 염려가 있으며, 실제로도 발생되는 차량이 다수 있다.However, in the case where the damper clutch is simply controlled according to the conditions of the throttle opening amount and the turbine rotation speed as described above, there is a concern that a bouncing may occur at the initial stage of direct connection of the damper clutch, and many vehicles are actually generated.

보다 구체적으로, 댐퍼 클러치에서의 부밍현상은 엔진출력이 낮은 영역에서의 직결시 터빈 회전수가 불규칙할 때와, 엔진 출력 차이, 흡기온 상승으로 인한 엔진 출력 저감, 에어컨 부하, 도로구배 조건에 따른 제어 로직을 구비하고 있기 않기 때문에 발생하게 되며, 이에 따른 제어설정이 제대로 되어 있지 않은 차량은 계속해서 부밍이 발생하여 차량에 대한 운전자의 불만사항이 되어 결국은 차량에 대한 신뢰성이 저하된다는 문제점을 내포하고 있다.More specifically, the booming phenomenon in the damper clutch is controlled when the turbine rotation speed is irregular when directly connected in a region where the engine power is low, and when the engine power difference, the engine power decrease due to the intake air temperature rise, the air conditioner load, and the road slope conditions are controlled. This is caused by the lack of logic, and the vehicle that does not have the proper control setting continues to be bouncing, which causes the driver's complaints about the vehicle, which in turn lowers the reliability of the vehicle. have.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로서, 본 발명의 목적은 댐퍼 클러치의 직결 상태에서 부밍(Boomming) 발생시 터빈 회전수의 변화 속도를 통해 부밍 발생 정도를 검출하여 직결 초기 터빈 회전수에 추가 회전수를 가산하여 작동 진입 영역을 축소시킴으로써, 부밍 발생을 억제하여 운전 성능을 향상시킬 수 있도록 한 댐퍼 클러치의 제어방법을 제공함에 있다.Therefore, the present invention has been invented to solve the above problems, an object of the present invention is to directly detect the degree of booming generation through the change speed of the turbine speed when the booming occurs in the direct connection state of the damper clutch direct turbine rotation It is to provide a control method of the damper clutch to suppress the booming generation to improve the driving performance by reducing the operating entry area by adding the additional rotation speed to the number.

도 1은 본 발명을 운용하기 하기 위한 구성도.1 is a block diagram for operating the present invention.

도 2는 본 발명에 관련되는 댐퍼 클러치의 작동과 비작동 영역을 나타낸 그래프선도.Figure 2 is a graph showing the operation and non-operation area of the damper clutch according to the present invention.

도 4는 본 발명에 의한 제어방법의 작동 흐름도.4 is an operation flowchart of a control method according to the present invention;

도 5는 종래 제어방법의 흐름도이다.5 is a flowchart of a conventional control method.

이를 실현하기 위하여 본 발명은, 차량의 운행중 스로틀 량과 터빈 회전수가 댐퍼 클러치의 직결 조건에 만족하면, 현재의 터빈 회전수 변화속도를 기본 터빈 회전수 변화속도와 경미한 부밍 발생 터빈 회전수 변화속도, 심함 부밍 터빈 회전수 변화속도로 구분하여 그에 따른 보정값으로 댐퍼 클러치를 제어하는 자동 변속기의 댐퍼 클러치 제어방법을 제공한다.In order to realize this, the present invention, if the throttle amount and the turbine rotational speed of the vehicle satisfies the direct connection condition of the damper clutch, the current turbine rotational speed change rate is based on the basic turbine rotational speed change and a slight booming generation turbine rotational speed change, The present invention provides a damper clutch control method of an automatic transmission for controlling a damper clutch based on a corrected value by dividing it into a severe booming turbine revolution speed.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 1은 본 발명을 운용하기 위한 구성의 블록도로서, 차량의 운전 상태를 감지하기 위한 감지수단으로는 스로틀 개도 보정과 댐퍼 클러치 작동영역을 판정하기 위해 엔진의 회전수를 검출하는 엔진 RPM 센서(2)와, 댐퍼 클러치의 작동영역을 판정하기 위해 스로틀 밸브의 개도를 검출하는 스로틀 포지션 센서(4)와, 스로틀 개도를 보정하기 위해 에어컨 릴레이의 온/오프 상태를 검출하는 에어컨 릴레이 검출부(6)와, 댐퍼 클러치의 비작동 영역을 판정하기 위해 유온을 검출하는 유온센서(8)와, 댐퍼 클러치의 비작동 영역을 판정하기 위해 가속페달의 온/오프를 검출하는 가속페달 스위치(10)와, 댐퍼 클러치의 작동 영역을 판정하기 위해 변속단과 터빈 회전수를 검출하는 터빈 회전수 센서(12)를 포함하여 이루어진다.1 is a block diagram of a configuration for operating the present invention, the sensing means for detecting the driving state of the vehicle as an engine RPM sensor for detecting the rotational speed of the engine to determine the throttle opening degree correction and the damper clutch operating area ( 2), a throttle position sensor 4 for detecting the opening degree of the throttle valve to determine the operating area of the damper clutch, and an air conditioner relay detecting section 6 for detecting the on / off state of the air conditioning relay for correcting the throttle opening degree. An oil temperature sensor 8 for detecting an oil temperature to determine an inactive area of the damper clutch, an accelerator pedal switch 10 for detecting an on / off of the accelerator pedal for determining an inactive area of the damper clutch, It comprises a turbine speed sensor 12 for detecting the gear stage and the turbine speed to determine the operating range of the damper clutch.

상기의 다수 감지수단으로부터 차량의 현재 운행 조건을 전기적으로 신호를 전달 받은 트렌스밋션 제어유닛(TCU)에서는 이의 정보를 미리 입력되어진 데이터와 비교 판단하여 댐퍼 클러치의 제어수단인 댐퍼 클러치 컨트롤 솔레노이드 밸브(14)를 듀티 제어하여 가장 이상적으로 댐퍼 클러치가 작동되도록 제어하게 되는 것이다.The transmission control unit (TCU), which has electrically transmitted the current driving condition of the vehicle from the plurality of sensing means, compares the information with pre-input data to determine the damper clutch control solenoid valve 14 which is a control means of the damper clutch. ) To control the damper clutch to operate most ideally.

이러한 댐퍼 클러치의 제어는 도2 에서와 같은 패턴으로 이루어지게 되는데, 본 발명에서 해결하고자 하는 부밍은 도 2의 빗줄친 부분에서와 같이 직결 초기에 상기 종래의 문제점에 기재된 조건이 되었을 때 발생하기 되는 것이다.Control of such a damper clutch is made in the same pattern as in Figure 2, the booming to be solved in the present invention is generated when the conditions described in the conventional problem at the beginning of the direct connection as in the hatched portion of Figure 2 will be.

따라서 본 발명은 댐퍼 클러치의 직결 상태에서 부밍(Boomming) 발생시 터빈 회전수의 변화 속도를 통해 부밍 발생 정도를 검출하여 직결 초기 터빈 회전수에 추가 회전수를 가산함으로써, 작동 진입 영역을 축소시켜 제어할 수 있도록 한 것이다.Therefore, the present invention detects the degree of booming through the speed of change of turbine speed when booming occurs in the direct connection state of the damper clutch, and adds the additional speed to the initial turbine speed directly, thereby reducing the control of the operation entry area. I would have to.

구체적으로는, 도 3에서와 같이, 엔진이 시동된 상태에서(S100) 스로틀 량이 직결 진입조건을 만족하는가를 판단하여(S110), 이 조건을 만족하면 터빈 회전수가 직결조건에 만족하는가를 판단하게 된다(S120).Specifically, as shown in FIG. 3, in the state of starting the engine (S100), it is determined whether the throttle amount satisfies the direct entry condition (S110). When this condition is satisfied, it is determined whether the turbine speed satisfies the direct connection condition. It becomes (S120).

상기 S120 단계에서 조건을 만족하면, 완전 직결의 상태로 댐퍼 클러치를 제어 한 후(S130), 현재 부밍 발생정도의 척도가 되는 터빈 회전수 변화속도(R)가 부밍 미발생의 터빈 회전수 변화속도 최대치(±r1) 내에 있는가를 판단하게 된다(S140).If the condition is satisfied in the step S120, after controlling the damper clutch in a state of direct connection (S130), the turbine speed change speed (R), which is a measure of the current degree of bomming generation, is the turbine speed change speed of no booming It is determined whether it is within the maximum value (r1) (S140).

상기 S140 단계에서 현재의 터빈 회전속도 변화(R)가 부밍 미발생 터빈 회전수 변화속도 최대치(±r1)에 있다고 판단되면, 직결 진입을 위한 터빈 회전수 조건 즉, 기본 터빈 회전수(NtBASE)로 완전 직결이 되도록 제어하게 된다(S160).If it is determined in step S140 that the current turbine rotational speed change R is at the maximum boomerization-free turbine speed change speed (± r1), the turbine speed condition for direct entry, that is, the basic turbine speed (Nt BASE ) It is controlled to be directly connected to (S160).

그리고 상기 S140 단계에서 현재의 터빈 회전수 변화속도(R)가 부밍 미발생 터빈 회전수 변화속도 최대치(±r1) 범위내에 있지 않다고 판단되면, 현재 터빈 회전수 변화속도(R)가 부밍 미발생 터빈 회전수 변화속도 최대치(±r1) 범위 보다는 크고, 경미한 부밍이 발생하는 터빈 회전수 변화속도(±r2) 범위 보다 작은 가를 판단하게 된다(S160).If it is determined in step S140 that the current turbine speed change speed R is not within the range of the maximum boomerization free turbine speed change speed (± r1), then the current turbine speed change speed R is the bomming free generation turbine. It is determined whether the speed is greater than the maximum speed change speed (± r1) range and smaller than the turbine speed change speed (± r2) range where a slight boom occurs (S160).

상기 S160 단계에서 조건을 만족하면, 기본 터빈 회전수(NtBASE)에 터빈 회전수 보정량(Nt1)를 가산하여 댐퍼 클러치가 직결 제어되도록 하며(S170), 상기 조건을 만족하지 못할 때에는 현재 터빈 회전수 변화속도(R)가 경미한 부밍이 발생하는 터빈 회전수 변화속도(±r2) 범위 보다는 크고, 심한 부밍이 발생하는 터빈 회전수 변화속도(±r3) 범위 보다 작은 가를 판단하게 된다(S180).If the condition is satisfied in step S160, the turbine speed correction amount Nt1 is added to the basic turbine speed Nt BASE so that the damper clutch is directly controlled (S170). If the condition is not satisfied, the current turbine speed is not satisfied. It is determined whether the change speed R is larger than the turbine speed change speed (± r2) range where a slight booming occurs and smaller than the turbine speed change speed (± r3) range where a severe booming occurs (S180).

상기 S180 단계에서 조건을 만족하면, 기본 터빈 회전수(NtBASE)에 터빈 회전수 보정량(Nt2)를 가산하여 댐퍼 클러치가 직결 제어되도록 하며(S190), 상기 조건을 만족하지 못할 때에는 S160 단계로 리턴되는 과정으로 댐퍼 클러치를 제어하게 되는 것이다.If the condition is satisfied in step S180, the damper clutch is directly controlled by adding the turbine speed correction amount Nt2 to the basic turbine speed Nt BASE (S190). If the condition is not satisfied, the process returns to step S160. The damper clutch is controlled by the process.

상기에서 ±r1은 경미한 부밍을 방지할 수 있는 적은 량의 보정값이며, ±r2은 심한 부밍을 방지할 수 있는 큰 값의 보정값으로, 이는 어느 일정값으로 정해지는 것이 아니라 현재 차량의 진행상태에 따라 달라지게 되는 것이다.In the above, ± r1 is a small amount of correction value that can prevent a slight booming, ± r2 is a large value that can prevent a severe booming, which is not fixed to any constant value but the current state of the vehicle It depends on.

이상에서와 같이 본 발명에 의하면, 댐퍼 클러치의 직결 상태에서 부밍(Boomming) 발생시 터빈 회전수의 변화 속도를 통해 부밍 발생 정도를 검출하여 부밍 발생 정도에 따른 보정값을 직결 초기 터빈 회전수에 추가 가산하여 작동 진입 영역을 축소시킴으로써, 부밍 발생을 억제하여 운전 성능을 향상시킬 수 있도록 발명인 것이다.As described above, according to the present invention, when the booming occurs in the direct connection state of the damper clutch, the degree of booming is detected through the speed of change of the turbine speed, and the correction value according to the booming degree is added to the initial turbine speed. By reducing the operation entry area, it is an invention to suppress the booming generation to improve the driving performance.

Claims (4)

차량의 운행중 스로틀 량과 터빈 회전수 터빈 회전수가 댐퍼 클러치의 직결 조건에 만족하면, 현재의 터빈 회전수 변화속도를 기본 터빈 회전수 변화속도, 경미한 부밍 발생 터빈 회전수 변화속도, 심함 부밍 터빈 회전수 변화속도로 구분하여 댐퍼 클러치를 제어하되,If the vehicle's throttle amount and turbine speed are satisfied with the damper clutch's direct condition, the current turbine speed change speed is based on the basic turbine speed change speed, slight booming turbine speed change speed, and severe booming turbine speed. Control the damper clutch by dividing by the change speed, 현재의 터빈 회전수 변화속도가 기본 터빈 회전수의 변화속도내에 있는 경우에는 기본 터빈 회전수로 댐퍼 클러치를 제어하며,If the current turbine speed change speed is within the speed change of the basic turbine speed, the damper clutch is controlled by the basic turbine speed. 현재 터빈 회전수 변화속도가 부밍 미발생 터빈 회전수 변화속도 최대치 범위 보다는 크고, 경미한 부밍이 발생하는 터빈 회전수 변화속도 범위 보다 작을 때에는 터빈 기본 회전수에 경미한 부밍 발생에 대한 보정값을 더하여 댐퍼 클러치를 제어하며,When the current turbine speed change speed is greater than the maximum turbine speed change speed range and smaller than the turbine speed change speed range where a slight booming occurs, the damper clutch is added to the turbine basic speed by adding a correction value for the slight booming occurrence. Control the 현재 터빈 회전수 변화속도가 경미한 부밍 발생 터빈 회전수 변화속도 범위 보다 크고, 심한 부밍이 발생하는 터빈 회전수 변화속도 범위 보다 작을 때에는 터빈 기본 회전수에 심한 부밍 발생에 대한 보정값을 더하여 댐퍼 클러치를 제어함을 특징으로 하는 자동 변속기의 댐퍼 클러치 제어방법.If the current turbine speed change speed is smaller than the turbine speed change speed range and the turbine speed change speed range is lower than the turbine speed change speed range, the damper clutch is added to the turbine basic speed by adding the correction value for the severe bomming occurrence. A damper clutch control method for an automatic transmission, characterized in that the control box. 삭제delete 삭제delete 삭제delete
KR10-2001-0059603A 2001-09-26 2001-09-26 Method of controlling damper clutch for an automatic transmission KR100405739B1 (en)

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