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KR102042254B1 - Shifting control method for vehicle - Google Patents

Shifting control method for vehicle Download PDF

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KR102042254B1
KR102042254B1 KR1020150172735A KR20150172735A KR102042254B1 KR 102042254 B1 KR102042254 B1 KR 102042254B1 KR 1020150172735 A KR1020150172735 A KR 1020150172735A KR 20150172735 A KR20150172735 A KR 20150172735A KR 102042254 B1 KR102042254 B1 KR 102042254B1
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vehicle
shift
controller
judging
control method
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KR20170066774A (en
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성병준
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현대자동차(주)
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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
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/20Preventing gear creeping ; Transmission control during standstill, e.g. hill hold control
    • 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
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/36Inputs being a function of speed
    • F16H59/38Inputs being a function of speed of gearing elements
    • F16H59/42Input shaft 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
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/60Inputs being a function of ambient conditions
    • F16H59/66Road conditions, e.g. slope, slippery
    • 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
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • 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
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/60Inputs being a function of ambient conditions
    • F16H59/66Road conditions, e.g. slope, slippery
    • F16H2059/663Road slope
    • 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
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/20Preventing gear creeping ; Transmission control during standstill, e.g. hill hold control
    • F16H2061/205Hill hold control, e.g. with torque converter or a friction device slightly engaged to keep vehicle stationary

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

본 발명 차량의 변속 제어방법은 컨트롤러가 변속이 개시되었는지를 판단하는 변속개시판단단계와; 변속이 개시된 경우, 상기 컨트롤러가 차량이 등판로에서 후방밀림이 발생하는 상황인지를 판단하는 후방밀림판단단계와; 상기 후방밀림판단단계 수행결과, 차량이 변속중 등판로 후방밀림이 발생한 것으로 판단되면, 상기 컨트롤러가 입력축 속도센서로부터 측정된 목표RPM을 보정하는 목표보정단계와; 상기 컨트롤러가 상기 목표보정단계에서 보정된 목표RPM을 추종하도록 구동모터의 속도를 제어하고 기어를 치합하여 변속을 완료하는 변속완료단계를 포함하여 구성된다.The shift control method for a vehicle of the present invention includes a shift start determining step of determining whether a shift is started by a controller; A rearward judging step of determining, by the controller, whether the vehicle is in a rearward rolling situation in the climbing road when the shift is started; A target correction step of correcting, by the controller, a target RPM measured by an input shaft speed sensor when it is determined that rearward sliding occurs on the back of the vehicle during shifting; And a shift completion step of controlling the speed of the driving motor so that the controller follows the target RPM corrected in the target correction step and engaging gears to complete the shift.

Description

차량의 변속 제어방법{SHIFTING CONTROL METHOD FOR VEHICLE}Vehicle shift control method {SHIFTING CONTROL METHOD FOR VEHICLE}

본 발명은 차량의 변속 제어방법에 관한 것으로서, 보다 상세하게는 AMT를 탑재한 하이브리드 버스 등과 같은 차량에서 변속을 수행하는 기술에 관한 것이다.The present invention relates to a shift control method of a vehicle, and more particularly, to a technique for shifting in a vehicle such as a hybrid bus equipped with an AMT.

하이브리드 버스에는 자동화 수동변속기(AMT: Automated Manual Transmission)가 사용되고 있다. 변속과정은 일반 수동변속기와 동일하며 변속 시 동기화 과정을 싱크로나이져가 수행하는 대신 구동모터가 다음 단수의 입력축 RPM을 추종하여 동기시킨 뒤 기어를 치합한다. 따라서, 속도가 정확히 동기되지 않은 상태에서 기어 치합 시 기어가 들어가지 않고 변속 충격이 발생한다. Hybrid buses use Automated Manual Transmission (AMT). The shifting process is the same as that of a general manual transmission. Instead of synchronizing the synchronizing process during shifting, the driving motor follows the input shaft RPM of the next stage and synchronizes gears. Therefore, the gear does not enter and gear shifting shock occurs when the gear is engaged while the speed is not exactly synchronized.

그러므로, 이러한 차량에서 변속품질을 확보하기 위해서는, 특히 차속이 일정하지 않은 상태에서 변속이 일어날 때, 모터가 입력축 rpm을 잘 추종하도록 하는 것이 중요하다. Therefore, in order to secure the shift quality in such a vehicle, it is important to make the motor follow the input shaft rpm well, especially when the shift occurs in a state where the vehicle speed is not constant.

그런데, 상기한 바와 같은 AMT를 탑재한 차량의 운전자가 등판로에서 브레이크를 약하게 조작하여, 변속이 이루어지는 도중에 차량이 정차하였다가 후방 밀림이 발생하게 되는 경우에는 구동모터가 입력축 RPM을 제대로 추종하여 동기시키지 못해서, 기어 치합이 제대로 이루어지지 못하고 충격이 발생하는 현상이 발생한다.However, when the driver of the vehicle equipped with the AMT as described above operates the brake weakly on the climbing road and the vehicle stops during the shift, and the rear push occurs, the driving motor properly follows the input shaft RPM and synchronizes. If not, the gear is not properly engaged and the impact occurs.

상기 발명의 배경이 되는 기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The matters described as the background technology of the present invention are merely for the purpose of improving the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related art already known to those skilled in the art. Will be.

KR 10-2015-0011481 AKR 10-2015-0011481 A

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, AMT를 탑재한 차량이 변속 도중에 등판로에서 정차하였다가 후방 밀림이 발생하게 되는 경우에도, 구동모터가 입력축 RPM을 적절히 추종하여 동기시킬 수 있도록 함에 의해 원활한 변속이 이루어져서 변속충격을 방지하고 변속감을 향상시켜서 궁극적으로 차량의 안정성 확보 및 상품성을 향상시킬 수 있도록 한 차량의 변속 제어방법을 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, and even when the vehicle equipped with the AMT stops on the climbing road during shifting, and the rear push occurs, the drive motor may properly follow the input shaft RPM to synchronize. The purpose of the present invention is to provide a shift control method of a vehicle that enables a smooth shift to prevent shift shock and improves a shift feeling, thereby ultimately securing vehicle stability and improving merchandise.

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량의 변속 제어방법은Shift control method of the vehicle of the present invention for achieving the object as described above

컨트롤러가 변속이 개시되었는지를 판단하는 변속개시판단단계와;A shift start determining step of determining, by the controller, whether shift is started;

변속이 개시된 경우, 상기 컨트롤러가 차량이 등판로에서 후방밀림이 발생하는 상황인지를 판단하는 후방밀림판단단계와;A rearward judging step of determining, by the controller, whether the vehicle is in a rearward rolling situation in the climbing road when the shift is started;

상기 후방밀림판단단계 수행결과, 차량이 변속중 등판로 후방밀림이 발생한 것으로 판단되면, 상기 컨트롤러가 입력축 속도센서로부터 측정된 목표RPM을 보정하는 목표보정단계와;A target correction step of correcting, by the controller, a target RPM measured by an input shaft speed sensor when it is determined that rearward sliding occurs on the back of the vehicle during shifting;

상기 컨트롤러가 상기 목표보정단계에서 보정된 목표RPM을 추종하도록 구동모터의 속도를 제어하고 기어를 치합하여 변속을 완료하는 변속완료단계를 포함하여 구성된 것을 특징으로 한다.And a gear shift completion step of controlling the speed of the driving motor so that the controller follows the target RPM corrected in the target correction step and engaging gears to complete the shift.

상기 후방밀림판단단계는 The rear jungle judging step

차량이 등판로에 주행 중임을 확인할 수 있도록 경사센서에 의한 경사도가 소정값 초과 상태이고, 차속이 0보다 큰 상태로부터 0인 상태로 변화했는지를 판단하는 제1밀림판단단계와;A first jungle judging step of judging whether the inclination by the inclination sensor is in a state exceeding a predetermined value so as to confirm that the vehicle is traveling on a climbing road and changing from a state in which the vehicle speed is greater than zero to zero;

상기 제1밀림판단단계 이후, 변속이 지속되고 있고 차속이 0을 초과하면, 변속중 등판로 후방밀림이 발생한 것으로 확정하는 제2밀림판단단계로 이루어질 수 있다.After the first jungle judging step, if the shift is continued and the vehicle speed exceeds 0, it may be a second jungle judging step of determining that the rear jungle has occurred to the back of the shift.

상기 제2밀림판단단계에서는 상기 제1밀림판단단계에서 판단된 경사도가 그대로 유지되는 경우에 상기 변속중 등판로 후방밀림이 발생한 것으로 판단하도록 할 수 있다.In the second judging determination step, when the inclination determined in the first judging determination step is maintained as it is, it may be determined that the rear thrust occurs to the back plate during the shift.

상기 목표보정단계는 상기 입력축 속도센서로부터 측정된 목표RPM에 -1을 곱하여 목표RPM을 보정하도록 할 수 있다.In the target correcting step, the target RPM measured by the input shaft speed sensor may be multiplied by −1 to correct the target RPM.

상기 컨트롤러는 상기 구동모터, AMT를 제어할 수 있도록 구성되고;The controller is configured to control the drive motor, AMT;

상기 컨트롤러는 차량의 경사센서 신호를 입력받으며, 상기 AMT의 입력축 속도센서의 신호를 입력받을 수 있도록 구성할 수 있다.The controller may be configured to receive an inclination sensor signal of the vehicle and to receive a signal of an input shaft speed sensor of the AMT.

본 발명은 AMT를 탑재한 차량이 변속 도중에 등판로에서 정차하였다가 후방 밀림이 발생하게 되는 경우에도, 구동모터가 입력축 RPM을 적절히 추종하여 동기시킬 수 있도록 함에 의해 원활한 변속이 이루어져서 변속충격을 방지하고 변속감을 향상시켜서 궁극적으로 차량의 안정성 확보 및 상품성을 향상시킬 수 있도록 한다.According to the present invention, even when a vehicle equipped with an AMT stops on a climbing road during shifting, when rear drift occurs, the driving motor smoothly shifts by synchronizing the input shaft RPM to prevent shift shock. By improving the speed of shifting, it is possible to ultimately secure vehicle stability and improve the merchandise.

도 1은 본 발명을 적용할 수 있는 하이브리드 차량의 구성을 예시한 도면,
도 2는 본 발명에 따른 차량의 변속 제어방법의 실시예를 도시한 도면이다.
1 is a view illustrating a configuration of a hybrid vehicle to which the present invention can be applied.
2 is a view showing an embodiment of a shift control method of a vehicle according to the present invention.

도 1을 참조하면, 본 발명이 적용될 수 있는 하이브리드 차량은 엔진(E)과 구동모터(M)가 엔진클러치(EC)로 연결되고, 상기 구동모터(M)는 변속기(TM)에 직결되며, 상기 변속기(TM)는 구동륜(W)으로 동력을 인출할 수 있도록 구성된다.Referring to FIG. 1, in a hybrid vehicle to which the present invention may be applied, an engine E and a driving motor M are connected to the engine clutch EC, and the driving motor M is directly connected to the transmission TM. The transmission TM is configured to draw power to the drive wheels W. As shown in FIG.

물론, 상기 변속기는 AMT로 구성될 수 있고 DCT 등으로 구현될 수도 있을 것이다.Of course, the transmission may be configured by AMT and may be implemented by DCT.

한편, 컨트롤러(CR)가 차량의 경사센서(1) 신호와, 상기 변속기(TM)의 입력축 속도센서(3)의 신호를 입력받을 수 있도록 구성되어 있고, 상기 구동모터(M), 변속기(TM)를 제어할 수 있도록 구성된다.On the other hand, the controller CR is configured to receive the inclination sensor (1) signal of the vehicle and the signal of the input shaft speed sensor (3) of the transmission (TM), the drive motor (M), the transmission (TM) Is configured to control.

또한, 도 1에는 상기 컨트롤러(CR)가 엔진(E)과 엔진클러치(EC)를 제어할 수 있는 것으로 표시하고 있으나, 이에 한정되는 것은 아니고 필요에 따라 각각 별도의 컨트롤러가 해당 장치를 제어하도록 구성하고, 제어 요청을 전달하는 방식으로 구성될 수도 있음은 물론이다.In addition, although FIG. 1 shows that the controller CR can control the engine E and the engine clutch EC, the present invention is not limited thereto, and a separate controller controls the corresponding device as necessary. And of course, it can also be configured in a manner that forwards the control request.

도 2는 본 발명에 따른 차량의 변속 제어방법의 실시예를 도시한 것으로서, 컨트롤러(CR)가 변속이 개시되었는지를 판단하는 변속개시판단단계(S10)와; 변속이 개시된 경우, 상기 컨트롤러가 차량이 등판로에서 후방밀림이 발생하는 상황인지를 판단하는 후방밀림판단단계(S20)와; 상기 후방밀림판단단계 수행결과, 차량이 변속중 등판로 후방밀림이 발생한 것으로 판단되면, 상기 컨트롤러가 입력축 속도센서로부터 측정된 목표RPM을 보정하는 목표보정단계(S30)와; 상기 컨트롤러가 상기 목표보정단계에서 보정된 목표RPM을 추종하도록 구동모터의 속도를 제어하고 기어를 치합하여 변속을 완료하는 변속완료단계(S40)를 포함하여 구성된다.2 is a view illustrating an embodiment of a vehicle shift control method according to the present invention, in which a controller CR determines whether a shift is started; When the shift is started, the rear judging determination step (S20) for the controller to determine whether or not the vehicle is in the rear slip occurs on the slope; A target correction step (S30) of correcting a target RPM measured by an input shaft speed sensor when it is determined that rearward sliding occurs on the back of the vehicle during shifting as a result of performing the rearward sliding determination step; The controller is configured to include a speed change completion step (S40) of controlling the speed of the drive motor to follow the target RPM corrected in the target correction step and gears to complete the shift.

즉, 본 발명은 차량의 주행중 변속이 개시되었는데, 등판로 주행 중인 상황이라서 운전자가 브레이크를 밟는 등의 이유로 차속이 0가 되었다가 결국에는 후방으로 밀림이 발생하는 경우에도, 이러한 변속중 차량 후방밀림을 상기 후방밀림판단단계에 의해 판단하여, 상기 목표보정단계로 상기 구동모터가 변속을 위해 추종해야할 목표RPM 자체를 적절히 보정하도록 함으로써, 원활한 변속이 이루어지도록 하는 것이다.That is, according to the present invention, when the shifting of the vehicle is started, even if the vehicle speed becomes 0 due to the driver driving the brakes and the vehicle eventually pushes backward, the rear of the vehicle is shifted during such shifting. By judging by the rearward judging step, by appropriately correcting the target RPM itself to be followed for the drive to shift in the target correction step, to achieve a smooth shift.

상기 후방밀림판단단계(S20)는, 차량이 등판로에 주행 중임을 확인할 수 있도록 경사센서에 의한 경사도가 소정값 초과 상태이고, 차속이 0보다 큰 상태로부터 0인 상태로 변화했는지를 판단하는 제1밀림판단단계(S21)와; 상기 제1밀림판단단계 이후, 변속이 지속되고 있고 차속이 0을 초과하면, 변속중 등판로 후방밀림이 발생한 것으로 확정하는 제2밀림판단단계(S22)로 이루어진다.The rearward judging step S20 may include determining whether the inclination by the inclination sensor exceeds a predetermined value and changes the vehicle speed from a state greater than zero to zero so as to confirm that the vehicle is traveling on a climbing road. 1 jungle judging step (S21); After the first jungle judging step, if the shift is continued and the vehicle speed exceeds 0, the second jungle judging step (S22) is determined to determine that the rear rim has occurred to the back of the shift.

상기 경사도를 판단하는 소정값은 도 2에는 0으로 제시하였으나, 실질적으로는 차량의 후방밀림이 발생할 정도로 경사도가 큰 값으로 설정하여 보다 정확한 후방밀림을 판단하도록 할 수도 있을 것이다.Although the predetermined value for determining the inclination is set to 0 in FIG. 2, the inclination may be set to a value that is large enough to cause rearward rolling of the vehicle.

여기서, 상기 제2밀림판단단계(S22)에서는 상기 제1밀림판단단계(S21)에서 판단된 경사도가 그대로 유지되는 경우에 상기 변속중 등판로 후방밀림이 발생한 것으로 판단하는 것이 더 정확한 판단에 유리할 것이다.Here, in the second jungle judging step S22, it may be advantageous to determine that rearward slippage occurs to the back of the shift when the inclination determined in the first jungle judging step S21 is maintained as it is. .

상기 목표보정단계(S30)는 상기 입력축 속도센서로부터 측정된 목표RPM에 -1을 곱하여 목표RPM을 보정한다.The target correction step S30 corrects the target RPM by multiplying the target RPM measured by the input shaft speed sensor by −1.

즉, 상기 입력축 속도센서는 상기 변속기의 입력축 속도를 측정하기는 하지만, 그 방향성을 알 수 없기 때문에, 차량의 후방 밀림이 발생하는 경우에는 실질적으로는 차량의 전진 방향에 대하여 마이너스 방향의 속도가 변속기 입력축에서 발생하여도, 이를 플러스 값으로 출력하기 때문에, 종래에 이를 추종하는 경우 변속이 제대로 이루어지지 못했던 것이므로, 본 발명에서는 이러한 경우에 상기와 같이 입력축 속도센서로부터 측정된 목표RPM에 -1을 곱하여 목표RPM을 보정함으로써, 상기 구동모터가 변속을 위해 추종해야 할 정확한 목표값을 제시하여, 원활한 변속이 이루어질 수 있도록 한 것이다.That is, although the input shaft speed sensor measures the input shaft speed of the transmission, but its direction is not known, the speed in the negative direction with respect to the forward direction of the vehicle is substantially reduced when the rear push of the vehicle occurs. Even if it occurs in the input shaft, since it outputs a positive value, when following this conventional shifting was not properly made, in the present invention in this case by multiplying the target RPM measured from the input shaft speed sensor as -1 by By correcting the target RPM, the drive motor proposes an accurate target value to be followed for shifting, so that smooth shifting can be achieved.

상기와 같이 목표보정단계(S30)를 통하여 상기 변속완료단계(S40)를 수행하면, 비록 차량의 후방밀림이 발생하는 경우라도, 상기 구동모터가 적절한 입력축 RPM에 적절히 동기되어 원활한 기어치합이 이루어지게 됨으로써, 변속충격이 방지되고, 부드러운 변속이 이루어지게 된다.If the shift completion step (S40) is carried out through the target correction step (S30) as described above, even if the rear of the vehicle occurs, the drive motor is properly synchronized to the appropriate input shaft RPM to achieve a smooth gear engagement. As a result, shift shock is prevented and a smooth shift is achieved.

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 당업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.While the invention has been shown and described with respect to particular embodiments, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit of the invention provided by the following claims. It will be self-evident for those of ordinary knowledge.

1; 입력축 속도센서
3; 경사센서
E; 엔진
EC; 엔진클러치
M; 구동모터
TM; 변속기
CR; 컨트롤러
W; 구동휠
S10; 변속개시판단단계
S20; 후방밀림판단단계
S30; 목표보정단계
S40; 변속완료단계
One; Input shaft speed sensor
3; Tilt sensor
E; engine
EC; Engine clutch
M; Drive motor
TM; Transmission
CR; controller
W; Driving wheel
S10; Speed Start Decision Stage
S20; Rear jungle judging step
S30; Goal Correction Step
S40; Shift completion stage

Claims (5)

구동모터가 변속기 입력축에 직결되고, 방향성 판단이 불가한 입력축 속도센서를 구비하며, 엔진과 상기 구동모터 사이의 엔진클러치를 자동적으로 제어하도록 된 차량의 변속 제어방법에 있어서,
컨트롤러가 변속이 개시되었는지를 판단하는 변속개시판단단계와;
변속이 개시된 경우, 상기 컨트롤러가 차량이 등판로에서 후방밀림이 발생하는 상황인지를 판단하는 후방밀림판단단계와;
상기 후방밀림판단단계 수행결과, 차량이 변속중 등판로 후방밀림이 발생한 것으로 판단되면, 상기 컨트롤러가 입력축 속도센서로부터 측정된 목표RPM을 보정하는 목표보정단계와;
상기 컨트롤러가 엔진클러치를 해제한 상태에서 상기 목표보정단계에서 보정된 목표RPM을 추종하도록 구동모터의 속도를 제어하고 기어를 치합하여 변속을 완료하는 변속완료단계;
를 포함하여 구성된 것을 특징으로 하는 차량의 변속 제어방법.
In a shift control method of a vehicle in which a drive motor is directly connected to a transmission input shaft, and has an input shaft speed sensor that cannot determine directionality, and automatically controls an engine clutch between an engine and the drive motor.
A shift start determining step of the controller determining whether the shift is started;
A rearward judging step of determining, by the controller, whether the vehicle is in a rearward rolling situation in the climbing road when the shift is started;
A target correction step of correcting a target RPM measured by an input shaft speed sensor when it is determined that rearward slipping occurs on the back of the vehicle while the vehicle is shifting;
A shift completion step of controlling the speed of the driving motor to match the target RPM corrected in the target correction step in the state where the controller releases the engine clutch, and completing the shift by engaging the gears;
Shift control method of a vehicle comprising a.
청구항 1에 있어서,
상기 후방밀림판단단계는
차량이 등판로에 주행 중임을 확인할 수 있도록 경사센서에 의한 경사도가 소정값 초과 상태이고, 차속이 0보다 큰 상태로부터 0인 상태로 변화했는지를 판단하는 제1밀림판단단계와;
상기 제1밀림판단단계 이후, 변속이 지속되고 있고 차속이 0을 초과하면, 변속중 등판로 후방밀림이 발생한 것으로 확정하는 제2밀림판단단계;
로 이루어진 것을 특징으로 하는 차량의 변속 제어방법.
The method according to claim 1,
The rear jungle judging step
A first jungle judging step of judging whether the inclination by the inclination sensor is in a state exceeding a predetermined value so as to confirm that the vehicle is traveling on a climbing road and changing from a state in which the vehicle speed is greater than zero to zero;
A second jungle judging step of determining that, after the first jungle judging step, the shift is continued and the vehicle speed exceeds 0, the rear thrust is generated to the back of the shift;
Shift control method of a vehicle, characterized in that consisting of.
청구항 2에 있어서,
상기 제2밀림판단단계에서는 상기 제1밀림판단단계에서 판단된 경사도가 그대로 유지되는 경우에 상기 변속중 등판로 후방밀림이 발생한 것으로 판단하는 것
을 특징으로 하는 차량의 변속 제어방법.
The method according to claim 2,
In the second judging determination step, it is determined that the rear slid to the back plate during the shift when the slope determined in the first judging determination step is maintained as it is.
Shift control method of a vehicle, characterized in that.
청구항 2에 있어서,
상기 목표보정단계는 상기 입력축 속도센서로부터 측정된 목표RPM에 -1을 곱하여 목표RPM을 보정하는 것
을 특징으로 하는 차량의 변속 제어방법.
The method according to claim 2,
The target correction step is to correct the target RPM by multiplying the target RPM measured from the input shaft speed sensor by -1.
Shift control method of a vehicle, characterized in that.
청구항 1에 있어서,
상기 컨트롤러는 상기 구동모터, AMT를 제어할 수 있도록 구성되고;
상기 컨트롤러는 차량의 경사센서 신호를 입력받으며, 상기 AMT의 입력축 속도센서의 신호를 입력받을 수 있도록 구성된 것
을 특징으로 하는 차량의 변속 제어방법.
The method according to claim 1,
The controller is configured to control the drive motor, AMT;
The controller is configured to receive a tilt sensor signal of the vehicle, and to receive a signal of the input shaft speed sensor of the AMT.
Shift control method of a vehicle, characterized in that.
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