KR102465905B1 - Pulley control method of continuosly variable transmission vehicle - Google Patents

Pulley control method of continuosly variable transmission vehicle Download PDF

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KR102465905B1
KR102465905B1 KR1020170139025A KR20170139025A KR102465905B1 KR 102465905 B1 KR102465905 B1 KR 102465905B1 KR 1020170139025 A KR1020170139025 A KR 1020170139025A KR 20170139025 A KR20170139025 A KR 20170139025A KR 102465905 B1 KR102465905 B1 KR 102465905B1
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South Korea
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pulley
vehicle
driving direction
variable transmission
speed
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KR1020170139025A
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Korean (ko)
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KR20190045996A (en
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황진영
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현대자동차주식회사
기아 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
    • 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
    • F16H61/66—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 specially adapted for continuously variable gearings
    • F16H61/662—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 specially adapted for continuously variable gearings with endless flexible members
    • 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
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over 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
    • F16H2061/0075—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
    • F16H2061/0096—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 using a parameter map

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

본 발명에 따른 무단변속기 차량의 풀리 제어방법은 제어부가 차속을 기준속도와 비교하는 단계; 상기 비교단계 수행결과, 차속이 기준속도보다 클 경우, 상기 제어부가 차량의 실제주행방향과 변속주행방향이 서로 반대방향인지 확인하는 단계; 및 상기 확인단계 수행결과, 차량의 실제주행방향이 변속주행방향과 서로 반대일 경우, 상기 제어부가 무단변속기의 구동풀리 및 종동풀리의 압력을 상향제어하는 단계;를 포함할 수 있다.A method for controlling a pulley of a continuously variable transmission vehicle according to the present invention comprises: comparing, by a control unit, a vehicle speed with a reference speed; as a result of performing the comparison step, when the vehicle speed is greater than the reference speed, confirming, by the controller, whether the actual driving direction of the vehicle and the shift driving direction are opposite to each other; and when the actual driving direction of the vehicle is opposite to the speed-change driving direction as a result of performing the checking step, the control unit upwardly controlling the pressure of the drive pulley and the driven pulley of the continuously variable transmission;

Description

무단변속기 차량의 풀리 제어방법 {PULLEY CONTROL METHOD OF CONTINUOSLY VARIABLE TRANSMISSION VEHICLE}{PULLEY CONTROL METHOD OF CONTINUOSLY VARIABLE TRANSMISSION VEHICLE}

본 발명은 차량이 주행되는 상황에서 스태틱(static) 변속이 발생할 경우에 풀리 슬립으로 인해 무단변속기 파손이 발생하는 것을 방지하는 무단변속기 차량의 풀리 제어방법에 관한 것이다.The present invention relates to a pulley control method for a continuously variable transmission vehicle that prevents damage to the continuously variable transmission due to pulley slip when a static shift occurs while the vehicle is being driven.

무단변속기는 구동풀리 및 종동풀리와 벨트로 구성되며, 각 풀리에 공급되는 유압을 제어하여 풀리를 축방향으로 이동시킴으로써, 벨트와 각 풀리 사이의 접촉면 직경의 변화를 통해 변속비를 연속적으로 변화시킬 수 있다.The continuously variable transmission consists of a drive pulley, a driven pulley, and a belt, and by controlling the hydraulic pressure supplied to each pulley to move the pulley in the axial direction, the transmission ratio can be continuously changed by changing the diameter of the contact surface between the belt and each pulley. have.

따라서, 변속단을 무단으로 구성할 수 있어 다단변속기와 비교하여 변속단을 엔진효율이 높은 포인트로 최적화할 수 있는바, 차량 연비 및 성능이 우수한 장점이 있다.Therefore, since the shift stage can be configured steplessly, the shift stage can be optimized to a point with high engine efficiency compared to a multi-stage transmission, and thus, there is an advantage in that the vehicle fuel efficiency and performance are excellent.

하지만, 벨트타입의 무단변속기는 벨트를 이용하여 변속을 실시하기 때문에, 급격한 토크변동이나 험로 진입 등의 외란이 발생하였을 때, 벨트가 슬립되면서 변속기가 파손될 수 있다는 문제점이 있다.However, since the belt-type continuously variable transmission performs shifting using a belt, there is a problem that the transmission may be damaged as the belt slips when a disturbance such as a sudden torque change or entry into a rough road occurs.

특히, 전진 중 후진, 또는 후진 중 전진으로 전환되는 스태틱(static) 변속상황에서 벨트 풀리의 급격한 방향전환에 의해 벨트 슬립이 발생할 수 있는바, 이를 방지하는 로직이 필요로 되어진다.In particular, belt slip may occur due to an abrupt change of direction of the belt pulley in a static shift situation in which the vehicle is switched to forward during forward or forward during reverse, and a logic to prevent this may be required.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The matters described as the background art above are only for improving the understanding of the background of the present invention, and should not be taken as an acknowledgment that they correspond to the prior art already known to those of ordinary skill in the art.

KR10-1756553 B1KR10-1756553 B1

본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로, 실제주행방향과 변속주행방향이 서로 반대가 되는 스태틱(static) 변속 상황에서 벨트 풀리의 슬립을 최소화함으로써 변속기 파손 가능성을 최소화하는 무단변속기 차량의 풀리 제어방법을 제공하는데 그 목적이 있다.The present invention has been proposed to solve this problem, and the pulley of a continuously variable transmission vehicle minimizes the possibility of transmission damage by minimizing the slip of the belt pulley in a static shift situation in which the actual driving direction and the shift driving direction are opposite to each other. The purpose is to provide a control method.

상기의 목적을 달성하기 위한 본 발명에 따른 무단변속기 차량의 풀리 제어방법은 제어부가 차속을 기준속도와 비교하는 단계; 상기 비교단계 수행결과, 차속이 기준속도보다 클 경우, 상기 제어부가 차량의 실제주행방향과 변속주행방향이 서로 반대방향인지 확인하는 단계; 및 상기 확인단계 수행결과, 차량의 실제주행방향이 변속주행방향과 서로 반대일 경우, 상기 제어부가 무단변속기의 구동풀리 및 종동풀리의 압력을 상향제어하는 단계;를 포함할 수 있다.According to an aspect of the present invention, there is provided a method for controlling a pulley of a continuously variable transmission vehicle, comprising: comparing, by a controller, a vehicle speed with a reference speed; as a result of performing the comparison step, when the vehicle speed is greater than the reference speed, confirming, by the controller, whether the actual driving direction of the vehicle and the shift driving direction are opposite to each other; and when the actual driving direction of the vehicle is opposite to the speed-change driving direction as a result of performing the checking step, the control unit upwardly controlling the pressure of the drive pulley and the driven pulley of the continuously variable transmission;

상기 상향제어단계 후, 상기 제어부가 차량의 실제주행방향과 변속주행방향을 서로 비교하고, 상기 실제주행방향과 변속주행방향이 동일해질 경우, 상기 구동풀리 및 종동풀리의 압력을 복구시키는 단계;를 더 포함하는 것을 특징으로 할 수 있다.After the upward control step, the control unit compares the actual driving direction and the shift driving direction of the vehicle, and when the actual driving direction and the shift driving direction are the same, restoring the pressure of the driving pulley and the driven pulley; It may be characterized in that it further comprises.

상기 제어부는 상기 상향제어단계에서 댐퍼클러치를 해제제어하고, 상기 복구단계에서 상기 댐퍼클러치의 해제제어를 중단하는 것을 특징으로 할 수 있다.The control unit may release control of the damper clutch in the upward control step, and stop the release control of the damper clutch in the recovery step.

상기 상향제어단계 시, 상기 제어부는 엔진회전수 및 차속에 따라 비례하게 맵핑된 압력값으로 상기 구동풀리 및 종동풀리의 압력을 상향제어하는 것을 특징으로 할 수 있다.In the upward control step, the controller may upwardly control the pressure of the driving pulley and the driven pulley to a pressure value proportionally mapped according to the engine speed and vehicle speed.

상기 기준속도는 0 kph로 설정된 것을 특징으로 할 수 있다.The reference speed may be set to 0 kph.

상술한 바와 같은 구조로 이루어진 무단변속기 차량의 풀리 제어방법에 따르면, 스태틱 변속 상황에서 무단변속기의 벨트 풀리에 슬립이 발생하여 변속기가 손상되는 상황을 방지할 수 있어, 무단변속기의 상품성 및 강건성을 향상시킬 수 있다.According to the pulley control method of the continuously variable transmission vehicle having the structure as described above, it is possible to prevent a situation in which the transmission is damaged due to slippage occurring in the belt pulley of the continuously variable transmission in a static shift situation, thereby improving the merchantability and robustness of the continuously variable transmission. can do it

도 1은 본 발명의 일 실시예에 따른 무단변속기 차량의 풀리 제어방법을 도시한 순서도,
도 2는 본 발명의 일 실시예에 따른 무단변속기 차량의 풀리 제어장치를 도시한 도면,
도 3은 무단변속기 차량의 풀리 제어장치의 작동을 도시한 그래프이다.1 is a flowchart illustrating a method for controlling a pulley of a continuously variable transmission vehicle according to an embodiment of the present invention;
2 is a view showing a pulley control device for a continuously variable transmission vehicle according to an embodiment of the present invention;
3 is a graph illustrating an operation of a pulley control device of a continuously variable transmission vehicle.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예에 따른 무단변속기 차량의 풀리 제어방법에 대하여 살펴본다.Hereinafter, a method for controlling a pulley of a continuously variable transmission vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 무단변속기 차량의 풀리 제어방법을 도시한 순서도이다. 도 2는 본 발명의 일 실시예에 따른 무단변속기 차량의 풀리 제어장치를 도시한 도면이다.1 is a flowchart illustrating a method for controlling a pulley of a continuously variable transmission vehicle according to an embodiment of the present invention. 2 is a view showing a pulley control apparatus for a continuously variable transmission vehicle according to an embodiment of the present invention.

도 1 내지 도 2를 참조하면, 본 발명의 무단변속기 차량의 풀리 제어방법은 제어부(Cont)가 차속을 기준속도와 비교하는 단계(S10); 상기 비교단계(S10) 수행결과, 차속이 기준속도보다 클 경우, 상기 제어부(Cont)가 차량의 실제주행방향과 변속주행방향이 서로 반대방향인지 확인하는 단계(S20); 및 상기 확인단계(S20) 수행결과, 차량의 실제주행방향이 변속주행방향과 서로 반대일 경우, 상기 제어부(Cont)가 무단변속기의 구동풀리(P1) 및 종동풀리(P2)의 압력을 상향제어하는 단계(S30);를 포함할 수 있다.1 to 2 , the method for controlling a pulley of a continuously variable transmission vehicle according to the present invention includes: a control unit Cont comparing the vehicle speed with a reference speed (S10); As a result of performing the comparison step (S10), when the vehicle speed is greater than the reference speed, the control unit (Cont) checking whether the actual driving direction of the vehicle and the shift driving direction are opposite to each other (S20); and when the actual driving direction of the vehicle is opposite to the variable speed driving direction as a result of performing the checking step (S20), the control unit Cont upwardly controls the pressure of the drive pulley P1 and the driven pulley P2 of the continuously variable transmission (S30); may include.

즉, 본 발명은 차속이 기준속도 보다 큰 상황으로써, 차량 주행중인 상황에서 실제주행방향과 변속주행방향이 서로 반대방향인 스태틱(static) 변속이 발생할 경우에 무단변속기의 벨트 풀리 슬립이 발생하는 것을 방지하기 위한 로직을 제시한다.That is, the present invention is a situation in which the vehicle speed is greater than the reference speed, and prevents belt pulley slip of the continuously variable transmission from occurring when a static shift in which the actual driving direction and the shift driving direction are opposite to each other occurs while the vehicle is driving. logic to prevent it.

상기 기준속도는 0 kph로 설정될 수 있다. 따라서, 차속이 기준속도인 0 kph보다 클 경우에 차량이 주행중인 상황이라 판단할 수 있다. The reference speed may be set to 0 kph. Accordingly, when the vehicle speed is greater than the reference speed of 0 kph, it may be determined that the vehicle is running.

도 2에 도시된 같이 무단변속기가 적용된 차량은 엔진(ENG)의 동력이 토크컨버터(E/C), 유성기어(PG), 구동풀리(P1), 종동풀리(P2), 감속기어, 구동륜(W) 순으로 전달되도록 마련됨으로써, 엔진(ENG)의 동력은 풀리에 의해 무단변속비로 가변되어 구동륜(W)으로 전달된다.As shown in FIG. 2, in the vehicle to which the continuously variable transmission is applied, the power of the engine (ENG) is a torque converter (E/C), a planetary gear (PG), a driving pulley (P1), a driven pulley (P2), a reduction gear, and a driving wheel ( W) is provided to be transmitted in order, so that the power of the engine ENG is changed at a continuously variable speed ratio by the pulley and transmitted to the driving wheels W.

여기서, 구동풀리(P1)는 엔진(ENG) 측과 연결되고, 종동풀리(P2)는 구동륜(W)과 연결되도록 마련되는바, 주행중 운전자에 의해 주행방향과 반대방향으로의 스태틱(static) 변속이 발생될 경우, 구동풀리(P1)의 회전방향은 엔진(ENG) 동력에 의해 신속하게 변화하는 반면, 종동풀리(P2)는 풀리를 통해 동력을 전달받더라도 구동륜(W)의 관성에 의해 회전방향을 유지하다가 뒤늦게 방향전환이 이루어진다.Here, the driving pulley P1 is connected to the engine ENG side, and the driven pulley P2 is provided to be connected to the driving wheels W, and the driver performs a static shift in the opposite direction to the driving direction while driving. When this occurs, the rotational direction of the driving pulley P1 is rapidly changed by the power of the engine ENG, whereas the driven pulley P2 rotates in the direction of rotation by the inertia of the driving wheel W even when power is transmitted through the pulley. The change of direction is made late while maintaining .

이로 인해, 구동풀리(P1)와 종동풀리(P2) 사이를 연결하는 풀리 양측에는 각각 인장력, 압축력이 걸려 풀리가 구동풀리(P1)와 종동풀리(P2)에 대해 슬립되어 손상될 수 있다. 본 발명의 제어부(Cont)는 이러한 풀리 슬립 현상을 방지하기 위해 스태틱(static) 변속기 발생하면 구동풀리(P1) 및 종동풀리(P2)의 압력을 상향제어한다.For this reason, tensile and compressive forces are applied to both sides of the pulley connecting between the driving pulley P1 and the driven pulley P2, respectively, so that the pulley slips with respect to the driving pulley P1 and the driven pulley P2 and may be damaged. The control unit Cont of the present invention controls the pressure of the driving pulley P1 and the driven pulley P2 upward when a static transmission occurs in order to prevent such a pulley slip phenomenon.

상기 구동풀리(P1) 및 종동풀리(P2)는 각각 연결된 액추에이터의 동작에 따라 압력이 가변제어되는데, 제어부(Cont)는 액추에이터가 유압을 가하도록 구동시킴으로써 구동풀리(P1) 및 종동풀리(P2)의 압력을 상향제어한다.The driving pulley (P1) and the driven pulley (P2) are variably controlled in pressure according to the operation of the connected actuator, respectively, and the control unit (Cont) drives the actuator to apply hydraulic pressure, thereby driving the driving pulley (P1) and the driven pulley (P2) increase the pressure of

상술한 바와 같이 차량 주행 중 발생하는 스태틱(static) 변속상황에서 구동풀리(P1) 및 종동풀리(P2)의 압력을 상향제어함으로써, 풀리 미끄러짐 현상을 방지할 수 있어 변속기 파손을 막을 수 있다.As described above, by upwardly controlling the pressures of the drive pulleys P1 and driven pulleys P2 in a static shift situation occurring during vehicle driving, pulley slippage can be prevented, thereby preventing transmission damage.

한편, 본 발명은 상기 상향제어단계(S30) 후, 상기 제어부(Cont)가 차량의 실제주행방향과 변속주행방향을 서로 비교하고, 상기 실제주행방향과 변속주행방향이 동일해질 경우, 상기 구동풀리(P1) 및 종동풀리(P2)의 압력을 복구시키는 단계(S40);를 더 포함할 수 있다.On the other hand, in the present invention, after the upward control step (S30), the control unit Cont compares the actual driving direction and the shift driving direction of the vehicle with each other, and when the actual driving direction and the shift driving direction are the same, the driving pulley (P1) and restoring the pressure of the driven pulley (P2) (S40); may further include.

즉, 스태틱(static) 변속이 발생하여 구동풀리(P1) 및 종동풀리(P2)의 압력을 상향 제어하였다가, 실제주행방향과 변속주행방향이 일치하여 풀리 미끄러짐 현상 발생 가능성이 제거되었을 경우, 상기 제어부(Cont)는 정상적인 풀리 제어를 위하여 구동풀리(P1) 및 종동풀리(P2)의 압력을 복구시킨다.That is, when a static shift occurs and the pressure of the driving pulley P1 and the driven pulley P2 is upwardly controlled, and the actual driving direction matches the shift driving direction, the possibility of pulley slippage is eliminated. The control unit Cont restores the pressure of the driving pulley P1 and the driven pulley P2 for normal pulley control.

한편, 상기 제어부(Cont)는 상기 상향제어단계(S30)에서 댐퍼클러치를 해제제어하고, 상기 복구단계(S40)에서 상기 댐퍼클러치의 해제제어를 중단할 수 있다.Meanwhile, the controller Cont may release control of the damper clutch in the upward control step S30 , and stop the release control of the damper clutch in the recovery step S40 .

상기 댐퍼클러치는 토크 컨버터(T/C) 내부에 구비된 것으로써, 유체 클러치를 플라이휠과 직결하여 유압에 의한 동력 손실을 방지하도록 마련된다. 본 발명은 차량이 주행중 스태틱(static) 변속을 실시할 경우에 상기 댐퍼클러치가 해제된 상태를 유지하도록 제어함으로써, 풀리 벨트가 방향전환될 때 그에 의해 발생되는 충격을 토크컨버터(T/C)의 유체를 통해 흡수하여 풀리 벨트에 미끄러짐이 발생하는 것을 방지할 수 있다.The damper clutch is provided inside the torque converter (T/C), and is provided to prevent power loss due to hydraulic pressure by directly connecting the fluid clutch to the flywheel. The present invention controls the damper clutch to maintain the released state when the vehicle performs a static shift while driving, so that the shock generated by the turn of the pulley belt is controlled by the torque converter (T/C). It can absorb through the fluid and prevent slippage of the pulley belt.

상기 제어부(Cont)는 상기 상향제어단계(S30)를 통해 댐퍼클러치를 해제제어한 후, 차량의 실제주행방향과 변속주행방향이 일치되는 상황에서는 댐퍼클러치의 해제제어를 중단함으로써, 지속적인 댐퍼클러치 해제상태로 인해 동력성능이 저하되는 것을 막을 수 있다.The control unit Cont controls the release of the damper clutch through the upward control step S30, and then stops the release control of the damper clutch in a situation where the actual driving direction of the vehicle and the shift driving direction match, thereby continuously releasing the damper clutch. It can prevent the power performance from being deteriorated due to the condition.

본 발명의 상기 상향제어단계(S30) 시, 상기 제어부(Cont)는 엔진회전수 및 차속에 따라 비례하게 맵핑된 압력값으로 상기 구동풀리(P1) 및 종동풀리(P2)의 압력을 상향제어할 수 있다.At the time of the upward control step (S30) of the present invention, the controller Cont upwardly controls the pressure of the driving pulley P1 and the driven pulley P2 to a pressure value proportionally mapped according to the engine speed and vehicle speed. can

즉, 구동풀리(P1)와 종동풀리(P2)는 각각 엔진(ENG)과 구동륜(W)에 연결되기 때문에, 엔진(ENG)회전수와 차속이 빠를수록 풀리 벨트에 슬립이 발생할 가능성이 커진다. 따라서, 제어부(Cont)는 엔진회전수 및 차속에 비례한 압력값으로 구동풀리(P1) 및 종동풀리(P2)의 압력을 제어함으로써, 풀리 벨트의 미끄러짐 현상을 효과적으로 방지할 수 있다.That is, since the driving pulley P1 and the driven pulley P2 are connected to the engine ENG and the driving wheels W, respectively, the higher the engine ENG rotation speed and the vehicle speed, the greater the possibility that slip occurs in the pulley belt. Accordingly, the controller Cont controls the pressure of the driving pulley P1 and the driven pulley P2 to a pressure value proportional to the engine speed and the vehicle speed, thereby effectively preventing the pulley belt from slipping.

도 3은 무단변속기 차량의 풀리 제어장치의 작동을 도시한 그래프이다.3 is a graph illustrating an operation of a pulley control device of a continuously variable transmission vehicle.

즉, 차량이 전진방향으로 0kph보다 큰 차속으로 주행하는 상황에서 변속레버 위치가 D레인지→R레인지로 전환될 경우, 제어부는 즉시 구동풀리에 반대방향 토크를 가하고, 동시에 구동풀리 및 종동풀리의 압력을 상향시키며, 댐퍼클러치를 해제 제어함으로써 풀리 슬립상황을 방지한다.That is, when the shift lever position is switched from D range to R range in a situation where the vehicle is traveling at a vehicle speed greater than 0 kph in the forward direction, the control unit immediately applies a torque in the opposite direction to the drive pulley, and simultaneously applies the pressure of the drive pulley and driven pulley. The pulley slip situation is prevented by controlling the release of the damper clutch.

이후, 차속이 후진방향으로 0kph보다 큰 차속으로 발생하면 차량의 실제주행방향과 변속주행방향이 서로 일치하게 되는바, 구동풀리 및 종동풀리의 압력과 댐퍼클러치의 해제제어를 모두 복구시킴으로써 무단변속기의 동력 손실을 최소화할 수 있다.Thereafter, when the vehicle speed occurs at a vehicle speed greater than 0 kph in the reverse direction, the actual driving direction of the vehicle and the shift driving direction coincide with each other. Power loss can be minimized.

상술한 바와 같은 구조로 이루어진 무단변속기 차량의 풀리 제어방법에 따르면, 스태틱 변속 상황에서 무단변속기의 벨트 풀리에 슬립이 발생하여 변속기가 손상되는 상황을 방지할 수 있어, 무단변속기의 상품성 및 강건성을 향상시킬 수 있다.According to the pulley control method of the continuously variable transmission vehicle having the structure as described above, it is possible to prevent a situation in which the transmission is damaged due to slippage occurring in the belt pulley of the continuously variable transmission in a static shift situation, thereby improving the merchantability and robustness of the continuously variable transmission. can do it

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.Although the present invention has been shown and described with reference to specific embodiments, it is within the art that the present invention can be variously improved and changed without departing from the spirit of the present invention provided by the following claims. It will be obvious to those of ordinary skill in the art.

S10: 비교단계 S20: 확인단계
S30: 상향제어단계 S40: 복구단계
ENG: 엔진
T/C: 토크컨버터
PG: 유성기어
P1: 구동풀리
P2: 종동풀리
W: 구동륜
Cont: 제어부S10: Comparison step S20: Confirmation step
S30: up-control step S40: recovery step
ENG: engine
T/C: Torque converter
PG: Planetary Gear
P1: drive pulley
P2: driven pulley
W: drive wheel
Cont: Control

Claims (5)

제어부가 차속을 기준속도와 비교하는 단계;
상기 비교단계 수행결과, 차속이 기준속도보다 클 경우, 상기 제어부가 차량의 실제주행방향과 변속주행방향이 서로 반대방향인지 확인하는 단계; 및
상기 확인단계 수행결과, 차량의 실제주행방향이 변속주행방향과 서로 반대일 경우, 상기 제어부가 무단변속기의 구동풀리 및 종동풀리의 압력을 상향제어하는 단계;를 포함하는 무단변속기 차량의 풀리 제어방법.comparing, by the controller, the vehicle speed with a reference speed;
as a result of performing the comparison step, when the vehicle speed is greater than the reference speed, confirming, by the controller, whether the actual driving direction and the shift driving direction of the vehicle are opposite to each other; and
As a result of performing the checking step, when the actual driving direction of the vehicle is opposite to the speed-change driving direction, the control unit upwardly controlling the pressures of the driving pulley and the driven pulley of the continuously variable transmission; . 청구항 1에 있어서,
상기 상향제어단계 후, 상기 제어부가 차량의 실제주행방향과 변속주행방향을 서로 비교하고, 상기 실제주행방향과 변속주행방향이 동일해질 경우, 상기 구동풀리 및 종동풀리의 압력을 복구시키는 단계;를 더 포함하는 것을 특징으로 하는 무단변속기 차량의 풀리 제어방법.The method according to claim 1,
After the upward control step, the control unit compares the actual driving direction and the shift driving direction of the vehicle with each other, and when the actual driving direction and the shift driving direction are the same, restoring the pressure of the driving pulley and the driven pulley; Pulley control method of a continuously variable transmission vehicle, characterized in that it further comprises. 청구항 2에 있어서,
상기 제어부는 상기 상향제어단계에서 댐퍼클러치를 해제제어하고, 상기 복구단계에서 상기 댐퍼클러치의 해제제어를 중단하는 것을 특징으로 하는 무단변속기 차량의 풀리 제어방법.3. The method according to claim 2,
wherein the control unit releases control of the damper clutch in the upward control step, and stops the release control of the damper clutch in the recovery step. 청구항 1에 있어서,
상기 상향제어단계 시, 상기 제어부는 엔진회전수 및 차속에 따라 비례하게 맵핑된 압력값으로 상기 구동풀리 및 종동풀리의 압력을 상향제어하는 것을 특징으로 하는 무단변속기 차량의 풀리 제어방법.The method according to claim 1,
In the upward control step, the control unit upwardly controls the pressure of the driving pulley and the driven pulley to a pressure value proportionally mapped according to the engine speed and the vehicle speed. 청구항 1에 있어서,
상기 기준속도는 0 kph로 설정된 것을 특징으로 하는 무단변속기 차량의 풀리 제어방법.The method according to claim 1,
The reference speed is a pulley control method of a continuously variable transmission vehicle, characterized in that set to 0 kph.
KR1020170139025A 2017-10-25 2017-10-25 Pulley control method of continuosly variable transmission vehicle KR102465905B1 (en)

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