KR20140031612A - Controlling method for starting clutch of automatic transmission in vehicle - Google Patents

Controlling method for starting clutch of automatic transmission in vehicle Download PDF

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KR20140031612A
KR20140031612A KR1020120098132A KR20120098132A KR20140031612A KR 20140031612 A KR20140031612 A KR 20140031612A KR 1020120098132 A KR1020120098132 A KR 1020120098132A KR 20120098132 A KR20120098132 A KR 20120098132A KR 20140031612 A KR20140031612 A KR 20140031612A
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South Korea
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vehicle speed
speed
creep
vehicle
automatic transmission
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KR1020120098132A
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Korean (ko)
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KR101394301B1 (en
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조명수
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현대 파워텍 주식회사
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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/066—Control of fluid pressure, e.g. using an accumulator
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/31—Signal inputs from the vehicle
    • F16D2500/3108—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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/314—Signal inputs from the user
    • F16D2500/31406—Signal inputs from the user input from pedals
    • F16D2500/31426—Brake pedal position
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50206—Creep control

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The present invention relates to a method for controlling a starting clutch of an automatic transmission in a vehicle comprising the steps of: determining whether or not the vehicle speed is increased beyond the maximum creeping speed of the present change gear while a controller carries out a creep control; controlling the starting clutch to shift up the change gear when the vehicle speed exceeds the maximum creeping speed; determining whether or not the vehicle speed is decreased below the minimum creeping speed of the present change gear while the controller carries out the creep control; and controlling the starting clutch to shift down the change gear when the vehicle speed is decreased below the minimum creeping speed. Because the starting clutch is controlled according to the creeping speed at the time of the creep control of the automatic transmission of the vehicle in order to shift the change gears, the present invention can carry out creep control at a target creeping speed. [Reference numerals] (AA) Start; (BB,DD) NO; (CC,EE) YES; (FF) End; (S10) Realize a DI change gear to an automatic transmission; (S20) Carry out creep control; (S30) Is the vehicle speed increased beyond the maximum creeping speed of the present level of gear shift ?; (S40) Upshift the level of gear shift; (S50) Is the vehicle speed decreased below the minimum creeping speed of the present level of gear shift ?; (S60) Downshift the level of gear shift; (S70) Maintain the level of gear shift

Description

자동변속기 차량에서의 발진클러치 제어 방법{CONTROLLING METHOD FOR STARTING CLUTCH OF AUTOMATIC TRANSMISSION IN VEHICLE} BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a control method for an oscillating clutch in an automatic transmission,

본 발명은 자동변속기 차량에서의 발진클러치 제어 방법에 관한 것으로서, 보다 상세하게는 발진클러치를 가지는 자동변속기 차량의 크립제어시 크립 차속에 따라 발진클러치를 제어하여 변속단을 변속시킴으로써 목표 크립 차속을 높여 크립제어를 할 수 있도록 하는 자동변속기 차량에서의 발진클러치 제어 방법에 관한 것이다.
The present invention relates to a method of controlling an oscillating clutch in an automatic transmission vehicle, and more particularly, to a method of controlling an oscillating clutch in an automatic transmission vehicle by controlling an oscillation clutch in accordance with a creep vehicle speed during creep control of an automatic transmission vehicle having an oscillation clutch, And to a control method of an oscillating clutch in an automatic transmission vehicle capable of performing creep control.

발진클러치는 종래의 자동변속기나 CVT 또는 하이브리드변속기 등에서 토크컨버터를 생략하고 그 대신 설치되어 엔진으로부터의 동력을 변속기로 전달 및 차단하도록 하는 용도로 주로 채용되고 있으며, 발진클러치가 장착되는 개수에 따라 HCC(Hydrodynamically Coolde Clutch, 한 개의 발진클러치)형과, DCT(Double Clutch Transmission, 두 개의 발진클러치)형이 개발되어 있다.The oscillating clutch is mainly used for eliminating the torque converter in a conventional automatic transmission, a CVT, or a hybrid transmission, and replacing the torque converter. The oscillating clutch is installed in place of the torque converter and is used to transmit and cut the power from the engine to the transmission. (Hydrodynamically Coolde Clutch) and DCT (Double Clutch Transmission) have been developed.

이러한 발진클러치는 엔진과 모터/제너레이터로부터 각각 변속기로 제공되는 동력을 합성하여 전달하는 기능을 담당하게 되는데, 실제 주행중 전기 구동모드에서 복합 구동모드로 전환할 때에는 엔진의 회전속도와 모터/제너레이터의 회전속도를 정확하게 일치시킬 수 없기 때문에 발진클러치는 오차 범위내에서 슬립하게 되고, 이러한 발진클러치의 슬립 과정 중에 엔진의 회전속도와 모터/제너레이터의 회전속도가 완전하게 동기될 수 있도록 한다. The oscillation clutch is configured to combine the power supplied from the engine and the motor / generator with the power supplied to the transmission. When switching from the electric drive mode to the hybrid drive mode, the rotation speed of the engine and the rotation Since the speed can not be precisely matched, the oscillating clutch slips within an error range, and during the slipping process of the oscillating clutch, the rotational speed of the engine and the rotational speed of the motor / generator can be completely synchronized.

또한, 발진클러치는 변속단이 전진(D) 또는 후진(R) 영역일 때 브레이크 페달이 감지되지 않으면 차량을 저속으로 전진 또는 후진하도록 제어하는 크립제어(Creep control) 상태로 전환시킨다.In addition, the oscillation clutch is switched to a creep control state in which if the brake pedal is not detected when the speed change stage is in the forward (D) or reverse (R) range, the vehicle is controlled to advance or reverse at a low speed.

이와 관련된 선행기술로는 대한민국 공개특허 10-2012-0011502호 "차량의 발진클러치"(2012.02.08)이 있다.
A prior art related to this is Korean Patent Laid-Open No. 10-2012-0011502 "Oscillating clutch of vehicle" (2012.02.08).

일반적으로 발진클러치를 갖는 자동변속기는, 토크컨버터의 토크 증배 효과가 없기 때문에 이를 보완하기 위하여 전진 1단(D1)의 기어비를 상대적으로 크게 구성하는데, 발진성능에 맞추어 기어비를 설계할 경우 크립제어시 최고 크립 차속이 낮아지게 되는 문제점이 있다.Generally, an automatic transmission having an oscillation clutch has a relatively large gear ratio of the first stage (D1) in order to compensate for the torque multiplication effect of the torque converter. In the case of designing the gear ratio according to the oscillation performance, There is a problem that the maximum creep speed is lowered.

본 발명은 상기와 같은 문제점을 개선하기 위해 창작된 것으로서, 발진클러치를 가지는 자동변속기 차량의 크립제어시 크립 차속에 따라 발진클러치를 제어하여 변속단을 변속시킴으로써 목표 크립 차속을 높여 크립제어를 할 수 있도록 하는 자동변속기 차량에서의 발진클러치 제어 방법을 제공하는데 그 목적이 있다.The present invention has been made in order to overcome the above problems, and it is an object of the present invention to provide a creep control system capable of increasing the target creep speed by controlling the oscillation clutch in accordance with the creep speed of the creep vehicle during the creep control of an automatic transmission vehicle having an oscillation clutch, And to provide a method of controlling an oscillating clutch in an automatic transmission vehicle.

또한, 본 발명은 크립제어시 토크컨버터를 갖는 일반 자동변속기와 동등한 수준으로 크립 차속을 얻을 수 있도록 하는 자동변속기 차량에서의 발진클러치 제어 방법을 제공하는데 그 목적이 있다.
It is another object of the present invention to provide a method of controlling an oscillating clutch in an automatic transmission vehicle capable of obtaining a creep vehicle speed at a level equivalent to that of a general automatic transmission having a torque converter during creep control.

본 발명의 일 측면에 따른 자동변속기 차량에서의 발진클러치 제어 방법은, 제어부가 상기 크립제어 수행 중 차속이 현재 변속단의 최대 크립 차속 이상으로 증속되었는지 판단하는 단계; 상기 차속이 최대 크립 차속 이상으로 증속된 경우, 발진클러치를 제어하여 변속단을 업시프트하는 단계; 상기 제어부가 상기 크립제어 수행 중 차속이 현재 변속단의 최소 크립 차속 미만으로 감속되었는지 판단하는 단계; 및 상기 차속이 최소 크립 차속 미만으로 감속된 경우, 상기 발진클러치를 제어하여 변속단을 다운시프트하는 단계; 를 포함하는 것을 특징으로 한다.An oscillation clutch control method in an automatic transmission vehicle according to an aspect of the present invention includes the steps of: determining, by a controller, that a vehicle speed is increased beyond a maximum creep vehicle speed of a current shift stage during the creep control; When the vehicle speed is increased beyond the maximum creep vehicle speed, upshifting the shift stage by controlling the oscillation clutch; Determining whether the vehicle speed is decelerated to less than the minimum creep vehicle speed of the current gear stage during the creep control; And controlling the oscillation clutch to downshift the speed change stage when the vehicle speed is reduced to less than the minimum creep vehicle speed. And a control unit.

본 발명에서, 상기 제어부는 상기 차속이 최대 크립 차속 이상으로 증속되지 않았거나, 최소 크립 차속 미만으로 감속되지 않은 경우, 현재 변속단을 유지시키는 것을 특징으로 한다.
In the present invention, the control unit is characterized in that to maintain the current shift stage, if the vehicle speed is not increased beyond the maximum creep vehicle speed, or less than the minimum creep vehicle speed.

본 발명은 발진클러치를 가지는 자동변속기 차량의 크립제어시 크립 차속에 따라 발진클러치를 제어하여 변속단을 변속시킴으로써 목표 크립 차속을 높여 크립제어를 할 수 있도록 할 뿐만 아니라 차량부하에 엔진을 효과적으로 사용하고 연비를 향상시킬 수 있다.The present invention can control the creep by controlling the oscillation clutch in accordance with the creep speed of the automatic transmission vehicle having the oscillation clutch to change the speed change stage to increase the target creep speed and to effectively use the engine for the vehicle load Fuel efficiency can be improved.

또한, 본 발명은 크립제어시 토크컨버터를 갖는 일반 자동변속기와 동등한 수준으로 크립 차속을 얻을 수 있도록 함으로써 사용자 만족도를 향상시킬 수 있다.
Further, the present invention makes it possible to obtain a creep vehicle speed at a level equivalent to that of a general automatic transmission having a torque converter during creep control, thereby improving user satisfaction.

도 1은 본 발명의 일 실시예에 따른 자동변속기 차량에서의 발진클러치 제어 장치를 나타낸 블록구성도,
도 2는 본 발명의 일 실시예에 따른 자동변속기 차량에서의 발진클러치 제어 방법을 설명하기 위한 흐름도이다.1 is a block diagram showing an oscillation clutch control apparatus in an automatic transmission vehicle according to an embodiment of the present invention;
2 is a flowchart illustrating a method of controlling an oscillating clutch in an automatic transmission vehicle according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명에 따른 자동변속기 차량에서의 발진클러치 제어 방법의 일 실시예를 상세하게 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, a method of controlling an oscillating clutch in an automatic transmission vehicle according to the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

도 1은 본 발명의 일 실시예에 따른 자동변속기 차량에서의 발진클러치 제어 장치를 나타낸 블록구성도이다.1 is a block diagram showing an oscillating clutch control apparatus in an automatic transmission vehicle according to an embodiment of the present invention.

도 1에 도시된 바와 같이 본 발명은, 변속기 아웃풋 스피드센서(10), 브레이크페달센서(20), 제어부(30), 자동변속기(40) 및 발진클러치(50)를 포함한다.1, the present invention includes a transmission output speed sensor 10, a brake pedal sensor 20, a control section 30, an automatic transmission 40, and an oscillation clutch 50. [

변속기 아웃풋 스피드센서(10)는 변속기 인풋 스피드센서(미도시)로부터 감지된 차속과 변속단의 기어비를 통해 산출되며, 이를 통해 크립제어시 차속을 감지한다.The transmission output speed sensor 10 is calculated from the vehicle speed sensed from the transmission input speed sensor (not shown) and the gear ratio of the speed change stage, thereby detecting the vehicle speed during creep control.

브레이크페달센서(20)는 브레이크페달 입력 여부를 감지한다.The brake pedal sensor 20 detects whether or not the brake pedal is input.

제어부(30)는 유압공급부(미도시)에 작동신호를 송신하여 자동변속기(40)에 전진 1속(D1)의 변속단을 구현시키고, 발진클러치(50)를 크립제어 상태로 전환시킨다.The control unit 30 transmits an operation signal to the hydraulic pressure supply unit (not shown) to implement the speed change stage of the first forward speed D1 in the automatic transmission 40 and to switch the oscillation clutch 50 to the creep control state.

또한, 제어부(30)는 변속기 아웃풋 스피드센서(10)로부터 크립제어시 차속을 입력받아, 크립제어 수행 중 차속이 현재 변속단의 최대 크립 차속 이상으로 증속되었는지 또는 상기 크립제어 수행 중 차속이 현재 변속단의 최소 크립 차속 미만으로 감속되었는지 판단하여 변속단이 업 혹은 다운시프트 되도록 자동변속기(50)를 제어한다.In addition, the controller 30 receives the vehicle speed during creep control from the transmission output speed sensor 10, and whether the vehicle speed is increased to be greater than or equal to the maximum creep vehicle speed of the current shift stage during the creep control or the vehicle speed is currently shifted during the creep control. The automatic transmission 50 is controlled to determine whether the gear stage is decelerated below the minimum creep vehicle speed of the stage so that the gear stage is up or down shifted.

발진클러치(50)는 자동변속기(40)에 엔진의 동력을 전달하거나 차단한다.
The oscillating clutch (50) transmits or cuts off the power of the engine to the automatic transmission (40).

도 2는 본 발명의 일 실시예에 따른 자동변속기 차량에서의 발진클러치 제어 방법의 동작 흐름을 도시한 순서도로써, 이를 참조하여 본 발명의 구체적인 동작을 설명한다.FIG. 2 is a flowchart illustrating an operational flow of a method of controlling an oscillating clutch in an automatic transmission vehicle according to an embodiment of the present invention. Referring to FIG. 2, a specific operation of the present invention will be described.

먼저, 자동변속기(40)에 전진 1속(D1) 변속단이 구현되어 크립제어가 수행된다(S10, S20).First, a forward first speed (D1) speed change stage is implemented in the automatic transmission 40 to perform creep control (S10, S20).

이때, 제어부(30)가 크립제어 수행 중 차속이 현재 변속단의 최대 크립 차속 이상으로 증속되었는지 판단한다(S30).At this time, the control unit 30 determines whether the vehicle speed is increased beyond the maximum creep vehicle speed of the current shift stage during the creep control (S30).

판단 결과, 차속이 최대 크립 차속 이상으로 증속된 경우, 발진클러치(50)를 제어하여 변속단을 업시프트한다(S40).As a result of the determination, when the vehicle speed is increased to the maximum creep vehicle speed or more, the oscillation clutch 50 is controlled to upshift the shift stage (S40).

즉, 전진 1속(D1) 변속단의 기어비 한계로 인하여 크립 차속이 너무 낮은 경우에, 변속단을 업시프트하여 기어비를 변경함으로써 크립 차속이 높아지게 된다.That is, when the creep vehicle speed is too low due to the gear ratio limit of the forward first speed (D1) gear stage, the creep vehicle speed is increased by shifting the gear stage to change the gear ratio.

이때, 변속단을 한단계 업시프트 하되, 발진클러치(50)가 HCC(Hydrodynamically Coolde Clutch, 한 개의 발진클러치)형인 경우 자동변속기(40)를 전진 2속(D2)으로 변속하여 크립제어를 수행한다.When the oscillation clutch 50 is of the HCC type (Hydrodynamically Coolde Clutch, one oscillation clutch) type, the automatic transmission 40 is shifted to the forward second speed (D2) to perform the creep control.

또한, 발진클러치(50)가 DCT(Double Clutch Transmission, 두 개의 발진클러치)형인 경우 전진 1속(D1) 기어를 담당하는 발진클러치(홀수단 발진클러치)로 전진 1속(D1) 최대 크립 차속에 도달한 후, 전진 2속(D2) 기어를 담당하는 발진클러치(짝수단 발진클러치)를 통해 변속하고 크립제어를 수행한다.When the oscillation clutch 50 is of DCT (Double Clutch Transmission, two oscillation clutch) type, it is set to the forward first speed (D1) maximum creep vehicle speed by an oscillation clutch , The clutch is shifted through the oscillation clutch (even-numbered oscillation clutch) that is in charge of the forward second-speed (D2) gear and performs creep control.

그 다음, 제어부(30)가 상기 크립제어 수행 중 차속이 현재 변속단의 최소 크립 차속 미만으로 감속되었는지 판단한다(S50).Next, the controller 30 determines whether the vehicle speed is reduced to less than the minimum creep vehicle speed of the current shift stage during the creep control (S50).

이때, 크립 차속은 브레이크페달센서(20)로부터 브레이크페달 입력이 감지되거나 지면경사도에 따라 감속될 수 있다. At this time, the creep vehicle speed can be detected by the brake pedal sensor 20 from the brake pedal sensor 20 or decelerated according to the ground inclination.

판단 결과, 차속이 최소 크립 차속 미만으로 감속된 경우, 발진클러치(50)를 제어하여 변속단을 다운시프트한다(S60).As a result of the determination, when the vehicle speed is reduced to less than the minimum creep vehicle speed, the oscillation clutch 50 is controlled to downshift the shift stage (S60).

만약, 차속이 최대 크립 차속 이상으로 증속되지 않았거나, 최소 크립 차속 미만으로 감속되지 않은 경우, 현재 변속단이 유지된다(S70).If the vehicle speed is not increased beyond the maximum creep vehicle speed or is not decelerated below the minimum creep vehicle speed, the current shift stage is maintained (S70).

즉, 본 발명에 의한 자동변속기 차량에서의 발진클러치 제어 방법에 따르면 발진클러치를 가지는 자동변속기 차량의 크립제어시 크립 차속에 따라 발진클러치를 제어하여 변속단을 변속시킴으로써 목표 크립 차속을 높여 크립제어를 할 수 있도록 할 뿐만 아니라 차량부하에 엔진을 효과적으로 사용하고 연비를 향상시킬 수 있다.That is, according to the control method of the oscillating clutch in the automatic transmission vehicle according to the present invention, the creep control is performed by controlling the oscillating clutch according to the creep vehicle speed during the creep control of the automatic transmission vehicle having the oscillation clutch, The engine can be effectively used for the vehicle load and the fuel economy can be improved.

또한, 본 발명은 크립제어시 토크컨버터를 갖는 일반 자동변속기와 동등한 수준으로 크립 차속을 얻을 수 있도록 함으로써 사용자 만족도를 향상시킬 수 있다.
Further, the present invention makes it possible to obtain a creep vehicle speed at a level equivalent to that of a general automatic transmission having a torque converter during creep control, thereby improving user satisfaction.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.

10 : 변속기 아웃풋 스피드 센서 20 : 브레이크 페달 센서
30 : 제어부 40 : 자동변속기
50 : 발진클러치10: Transmission output speed sensor 20: Brake pedal sensor
30: control unit 40: automatic transmission
50: Oscillating clutch

Claims (2)

제어부가 상기 크립제어 수행 중 차속이 현재 변속단의 최대 크립 차속 이상으로 증속되었는지 판단하는 단계;
상기 차속이 최대 크립 차속 이상으로 증속된 경우, 발진클러치를 제어하여 변속단을 업시프트하는 단계;
상기 제어부가 상기 크립제어 수행 중 차속이 현재 변속단의 최소 크립 차속 미만으로 감속되었는지 판단하는 단계; 및
상기 차속이 최소 크립 차속 미만으로 감속된 경우, 상기 발진클러치를 제어하여 변속단을 다운시프트하는 단계; 를 포함하는 자동변속기 차량에서의 발진클러치 제어 방법.
Determining, by the controller, whether the vehicle speed is increased beyond the maximum creep vehicle speed of the current shift stage during the creep control;
If the vehicle speed is increased beyond the maximum creep vehicle speed, controlling the oscillation clutch to upshift the shift stage;
Determining, by the controller, whether the vehicle speed is reduced to less than the minimum creep vehicle speed of the current shift stage during the creep control; And
If the vehicle speed is reduced to less than the minimum creep vehicle speed, downshifting the shift stage by controlling the oscillation clutch; Wherein the control unit controls the oscillating clutch in the automatic transmission.
제 1항에 있어서, 상기 제어부는
상기 차속이 최대 크립 차속 이상으로 증속되지 않았거나, 최소 크립 차속 미만으로 감속되지 않은 경우, 현재 변속단을 유지시키는 것을 특징으로 하는 자동변속기 차량에서의 발진클러치 제어 방법.
The apparatus of claim 1, wherein the control unit
When the vehicle speed is not increased beyond the maximum creep vehicle speed or decelerated below the minimum creep vehicle speed, the oscillation clutch control method of the automatic transmission vehicle, characterized in that to maintain the current gear stage.
KR1020120098132A 2012-09-05 2012-09-05 Controlling method for starting clutch of automatic transmission in vehicle KR101394301B1 (en)

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