KR20200042991A - Shifting control method for continuously variable transmission - Google Patents

Shifting control method for continuously variable transmission Download PDF

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KR20200042991A
KR20200042991A KR1020180123328A KR20180123328A KR20200042991A KR 20200042991 A KR20200042991 A KR 20200042991A KR 1020180123328 A KR1020180123328 A KR 1020180123328A KR 20180123328 A KR20180123328 A KR 20180123328A KR 20200042991 A KR20200042991 A KR 20200042991A
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South Korea
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shift
continuously variable
target
speed
continuously
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KR1020180123328A
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Korean (ko)
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원찬희
장우일
김호영
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020180123328A priority Critical patent/KR20200042991A/en
Publication of KR20200042991A publication Critical patent/KR20200042991A/en

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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
    • 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
    • F16H61/04—Smoothing ratio shift
    • 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
    • F16H61/04—Smoothing ratio shift
    • F16H2061/0444—Smoothing ratio shift during fast shifting over two gearsteps, e.g. jumping from fourth to second gear
    • 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
    • F16H2061/6604—Special control features generally applicable to continuously variable gearings
    • F16H2061/6615—Imitating a stepped transmissions

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

Abstract

The present invention relates to a technique for maximizing a section of AT simulation control while preventing the maximum speed of a vehicle from decreasing. According to the present invention, disclosed is a shift control method for a continuously variable transmission, wherein during a power-on upshift, a target shift ratio determined by the number of rotations of a drive pulley and the number of rotations of a driven pulleys is changed stepwise to perform a shift that simulates a gear shift, an APS and vehicle acceleration are checked, and the target shift ratio is continuously varied to allow a continuously variable shift during a power-on upshift when the APS exceeds a set value and the vehicle acceleration is less than a predetermined value.

Description

무단변속기용 변속 제어방법{SHIFTING CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION}SHIFTTING CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION}

본 발명은 AT모사제어의 구간을 극대화하면서도 차량의 최고속이 감소하는 것을 방지하는 무단변속기용 변속 제어방법에 관한 것이다.The present invention relates to a shift control method for a continuously variable transmission that maximizes a section of AT simulation control and prevents the maximum speed of the vehicle from decreasing.

벨트 풀리에 의해 변속을 하는 무단변속기(CVT)는 구동풀리와 종동풀리의 압력을 제어하여 원하는 변속비를 만든다.The continuously variable transmission (CVT), which is shifted by a belt pulley, controls the pressure of the drive pulley and the driven pulley to create the desired transmission ratio.

이로 인해 변속단을 고정단이 아닌 무한단으로 구성할 수 있어, 다단(유성기어/외접기어)변속기와 비교하여 변속단을 엔진의 효율이 높은점으로 최적화할 수 있고, 이에 차량의 연비 및 성능이 우수한 장점이 있다.Due to this, the transmission stage can be configured as an infinite stage rather than a fixed stage, so that the transmission stage can be optimized to a high efficiency point of the engine compared to a multi-stage (planetary gear / external gear) transmission. This has an excellent advantage.

이처럼, 무단변속기는 변속비의 연속적인 제어를 통해 차량의 성능을 높일 수 있는 장점이 있기는 하지만, 상대적으로 운전자가 느끼는 변속감이 떨어지는 문제가 있어, 운전자의 가속의지가 분명한 구간에서는 운전의 재미를 주기 위해 AT(Automatic Transmission)의 유단변속을 모사한 변속제어(이하 'AT모사제어'라 칭함)를 사용하는 추세에 있다.As described above, the continuously variable transmission has the advantage of increasing the performance of the vehicle through continuous control of the transmission ratio, but there is a problem in that the shift feeling felt by the driver is relatively low, so that the driver's acceleration will give driving fun. For this, there is a trend to use shift control (hereinafter referred to as 'AT simulated control') that simulates the stepped transmission of AT (Automatic Transmission).

다만, AT모사제어의 경우, 트레일러 장착, 공기저항, 경사도 등 다양한 부하조건에서 업시프트 변속시 차량의 최고속이 감소하는 현상이 발생하는 문제가 있다.However, in the case of AT simulation control, there is a problem in that the maximum speed of the vehicle decreases during upshift shifting under various load conditions such as trailer mounting, air resistance, and slope.

상기의 배경기술로서 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 above descriptions as background arts are only for improving understanding of the background of the present invention, and should not be taken as an admission that they correspond to the prior arts already known to those skilled in the art.

KR 10-2012-0023444 AKR 10-2012-0023444 A

본 발명은 전술한 바와 같은 문제점을 해결하기 위하여 안출한 것으로, AT모사제어의 구간을 극대화하면서도 차량의 최고속이 감소하는 것을 방지하는 무단변속기용 변속 제어방법을 제공하는 데 있다.The present invention has been devised to solve the above-described problems, and to provide a shift control method for a continuously variable transmission that maximizes a section of AT simulation control and prevents the maximum speed of the vehicle from decreasing.

상기와 같은 목적을 달성하기 위한 본 발명의 구성은, 컨트롤러가 파워온 업시프트 변속시, 구동풀리 회전수와 종동풀리 회전수에 의해 결정되는 목표변속비를 단계적으로 변화시켜 유단변속을 모사한 변속을 실시하는 유단변속단계; 컨트롤러가 APS와, 차량가속도를 체크하는 체크단계; 및 컨트롤러가 상기 APS가 설정값 초과이고, 차량가속도가 일정값 미만인 경우, 파워온 업시프트 변속시, 상기 목표변속비를 연속적으로 변화시켜 무단변속을 실시하는 무단변속단계;를 포함하는 것을 특징으로 할 수 있다.The configuration of the present invention for achieving the above object, the controller when the power-on upshift shifting, the step change the target transmission ratio determined by the number of drive pulley rotational speed and driven pulley rotational speed to simulate the stepped shift Step shift step performed; A controller checks the APS and the vehicle acceleration; And a step in which the controller continuously changes the target transmission ratio by continuously changing the target transmission ratio when the APS exceeds a preset value and the vehicle acceleration is less than a predetermined value, during power-on upshift shifting. You can.

상기 무단변속단계에서는, 엔진의 최대허용회전수를 상기 구동풀리 목표회전수로 설정하고; 상기 설정된 구동풀리 목표회전수를 기준으로 상기 목표변속비를 연속적으로 변화시켜 종동풀리 회전수를 제어할 수 있다.In the continuously variable step, the maximum allowable rotational speed of the engine is set as the target rotational speed of the driving pulley; A driven pulley rotation speed may be controlled by continuously changing the target transmission ratio based on the set driving pulley target rotation speed.

상기 체크단계 이 후에, 상기 APS가 설정값 초과이고, 차량가속도가 일정값 미만인 경우 카운터를 누적하고, 상기 카운터가 일정값 이상시, 상기 무단변속단계에 진입하도록 제어할 수 있다.After the check step, if the APS exceeds a set value and the vehicle acceleration is less than a predetermined value, a counter is accumulated, and when the counter is greater than a predetermined value, it can be controlled to enter the continuously variable step.

상기 무단변속단계에서는, 차량가속도 변화량이 일정값 미만인지 더 판단할 수 있다.In the continuously variable step, it may be further determined whether the vehicle acceleration change amount is less than a predetermined value.

상기한 과제 해결수단을 통해 본 발명은, AT모사제어를 통해 업시프트 변속모드에 진입하여 주행하는 과정에서, 차량의 최고차속이 필요한 주행상황에 진입한 경우, AT모사제어를 통한 업시프트 제어를 금지하고, 목표 변속비를 연속적으로 가변하는 무단변속제어를 실시함으로써, 엔진의 최대 파워점을 유지하게 되는바, 차량의 최대 구동력을 확보하여 차속을 상승시키게 되고, 이에 차속이 감소하는 것을 방지하는 효과가 있다.The present invention through the above-described problem solving means, in the process of entering the upshift shift mode through the AT simulation control and driving, when entering the driving situation where the vehicle's maximum vehicle speed is required, the upshift control through the AT simulation control Prohibited, and by performing continuously variable control to continuously change the target transmission ratio, the maximum power point of the engine is maintained, thereby securing the maximum driving force of the vehicle to increase the vehicle speed, thereby preventing the vehicle speed from decreasing. There is.

도 1은 본 발명에 적용되는 무단변속기가 탑재된 차량의 파워트레인 구성을 예시한 도면.
도 2는 본 발명에 따른 변속 제어흐름을 도시한 흐름도.
도 3은 본 발명에 의한 유단변속 및 무단변속시의 차량의 운전상태를 나타낸 선도.1 is a view illustrating a power train configuration of a vehicle equipped with a continuously variable transmission applied to the present invention.
2 is a flow chart showing a shift control flow according to the present invention.
Figure 3 is a diagram showing the driving state of the vehicle at the stepped and stepless according to the present invention.

본 발명의 바람직한 실시예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.If described in detail by the accompanying drawings, preferred embodiments of the present invention.

본 발명의 무단변속기용 변속 제어방법은, 크게 유단변속단계와, 체크단계 및 무단변속단계를 포함하여 구성이 된다.The shift control method for a continuously variable transmission of the present invention is largely composed of a stepped shift step, a check step, and a stepless shift step.

도 1을 참조하여, 본 발명을 구체적으로 살펴보면, 먼저 유단변속단계에서는, 컨트롤러(7)가 파워온 업시프트 변속시, 구동풀리(1) 회전수와 종동풀리(3) 회전수에 의해 결정되는 목표변속비를 단계적으로 변화시켜 유단변속을 모사한 변속을 실시하도록 구성이 된다. 여기서, 상기 유단변속을 모사한 변속은 AT와 같이 유성기어의 조합으로 변속비를 형성하는 자동변속기의 유단변속을 일컫는 것으로, 변속비를 각 변속단에 맞추어 단계적으로 변화시켜 변속을 수행하게 된다.Referring to Figure 1, looking at the present invention in detail, first, in the stepped step, the controller 7 is determined by the number of revolutions of the drive pulley (1) and the driven pulley (3) when the power-on upshift shift It is configured to perform the shift that simulates the stepped shift by changing the target shift ratio step by step. Here, the shift simulating the step shift refers to the step shift of an automatic transmission that forms a shift ratio by a combination of a planetary gear, such as AT, and performs shifting by changing the shift ratio in step with each shift stage.

예컨대, 운전자가 차량의 가속을 위해 가속페달을 밟는 경우, 변속비가 연속적으로 변경되는 무단변속을 실시하는 대신에 변속비가 단계적으로 변경되는 유단변속을 실시하여 상위단으로 변속을 실시하게 된다.For example, when the driver steps on the accelerator pedal for acceleration of the vehicle, instead of performing continuously variable shifting in which the transmission ratio is continuously changed, step shifting in which the transmission ratio is changed stepwise is performed to shift to the upper stage.

체크단계에서는, 상기 유단변속으로 상위단 변속을 진행하면서 주행하는 과정에서 컨트롤러(7)가 APS와, 차량가속도를 체크할 수 있다.In the check step, the controller 7 may check the APS and the vehicle acceleration in the course of driving while shifting to the upper step by the step shift.

그리고, 무단변속단계에서는, 컨트롤러(7)가 상기 APS가 설정값 초과이고, 차량가속도가 일정값 미만인 경우, 파워온 업시프트 변속시, 상기 목표변속비를 연속적으로 변화시켜 무단변속을 실시하도록 구성이 된다.And, in the stepless speed change step, the controller 7 is configured to perform stepless speed change by continuously changing the target speed ratio during power-on upshift shift, when the APS exceeds the set value and the vehicle acceleration is less than a predetermined value. do.

이때에, 상기 차량가속도는 휠속도센서(5)를 통해 측정된 휠속도를 기반으로 차속을 계산하여 연산할 수 있는 것으로, 상기 차량가속도와 함께 차량가속도 변화량이 일정값 미만인지 더 판단할 수 있다.At this time, the vehicle acceleration can be calculated by calculating the vehicle speed based on the wheel speed measured by the wheel speed sensor 5, it is possible to further determine whether the vehicle acceleration and the vehicle acceleration change amount is less than a predetermined value. .

그리고, 상기 APS 대신에 엔진토크가 설정값을 초과하는지 판단할 수 있으나, APS가 설정값을 초과하는 상황에서는 엔진토크도 설정값 이상이 되는바, 바람직하게는 APS만을 확인할 수 있고, APS와 엔진토크를 함께 확인할 수도 있다. In addition, it is possible to determine whether the engine torque exceeds the set value instead of the APS, but in the situation where the APS exceeds the set value, the engine torque also becomes higher than the set value, preferably only the APS can be checked, and the APS and the engine You can also check the torque.

즉, APS가 설정값을 초과하여 차량을 가속하는 주행상황임에도 불구하고, 차량가속도가 설정값 미만으로 떨어지게 되면, 이는 차량을 더 빠르게 주행하기 위한 구동력이 필요한 상황으로 판단할 수 있다.That is, even though the APS is a driving situation in which the vehicle is accelerated by exceeding the set value, if the vehicle acceleration falls below the set value, it may be determined that a driving force for driving the vehicle faster is required.

이에, 상기한 운전조건 만족시, 상기 AT모사제어를 통한 업시프트 제어를 금지하고, 목표 변속비를 연속적으로 가변하는 무단변속제어를 실시함으로써, 엔진의 최대 파워점을 유지하게 되는바, 차량의 최대 구동력을 확보하여 차속이 감소하는 것을 방지하게 된다.Accordingly, when the above-described driving conditions are satisfied, the upshift control through the AT simulation control is prohibited, and the continuously variable control that continuously changes the target transmission ratio is maintained, thereby maintaining the maximum power point of the engine. The driving force is secured to prevent the vehicle speed from decreasing.

아울러, 본 발명의 상기 무단변속단계에서는, 엔진의 최대허용회전수를 상기 구동풀리(1) 목표회전수로 설정하고, 상기 설정된 구동풀리(1) 목표회전수를 기준으로 상기 목표변속비를 연속적으로 변화시켜 종동풀리(3) 회전수를 제어할 수 있다.In addition, in the stepless step of the present invention, the maximum allowable rotational speed of the engine is set as the target rotational speed of the driving pulley (1), and the target transmission ratio is continuously adjusted based on the set driving pulley (1) target rotational speed. By changing, the number of rotations of the driven pulley 3 can be controlled.

즉, 엔진에서 작동이 가능한 최대허용회전수를 구동풀리(1) 목표회전수로 고정한 상태에서 목표변속비가 작아지는 방향으로 연속적으로 변화시키게 되면, 종동풀리(3) 회전수가 점진적으로 증가하게 되는바, 차속을 높일 수 있게 된다.That is, when the maximum allowable rotational speed that can be operated in the engine is continuously changed in the direction in which the target transmission ratio decreases while the driving pulley 1 is fixed to the target rotational speed, the rotational speed of the driven pulley 3 gradually increases. , You can increase the vehicle speed.

그리고, 상기 체크단계 이 후에, 상기 APS가 설정값 초과이고, 차량가속도가 일정값 미만인 경우 카운터를 누적하고, 상기 카운터가 일정값 이상시, 상기 무단변속단계에 진입하도록 제어할 수 있다.Then, after the check step, if the APS exceeds a set value and the vehicle acceleration is less than a predetermined value, a counter is accumulated, and when the counter is greater than a predetermined value, it can be controlled to enter the continuously variable step.

도 2를 참조하여, 본 발명에 따른 변속 제어과정을 순차적으로 살펴보면, 차량의 주행과정에서 가속페달을 밟아 운전자의 가속의지가 있는 상태에서 업시프트 변속이 요구되는 경우(S10), 목표변속비가 단계적으로 작아지도록 설정함으로써, AT를 모사한 유단변속을 실시한다(S20).Referring to FIG. 2, when sequentially looking at the shift control process according to the present invention, when an upshift shift is required in the state where the driver intends to accelerate by stepping on the accelerator pedal in the driving process of the vehicle (S10), the target shift ratio is stepwise. By setting it to be small, a step-shift is simulated by AT (S20).

이처럼, AT모사 유단변속모드에 진입하여 차량을 주행하는 과정에서, APS가 A 초과이고, 엔진토크가 B 초과인지 판단하고(S30), 이들 조건을 만족시 차량가속도가 C 미만인지 판단하고(S40), 이어서 차량가속도 변화량이 O 미만인지 판단한다(S50).As described above, in the process of entering the AT simulated stepped shift mode and driving the vehicle, it is determined whether the APS is greater than A and the engine torque is greater than B (S30), and if these conditions are satisfied, the vehicle acceleration is less than C (S40). ) Next, it is determined whether the vehicle acceleration change amount is less than O (S50).

판단 결과, 이들 조건을 만족하면, 카운터를 소정값(1) 가산하여 증가하고(S60), 이어서 카운터가 D를 초과하는지 판단하여(S70), 카운터가 D를 초과하는 경우, AT모사제어를 금지하도록 제어한다(S80).As a result of the determination, if these conditions are satisfied, the counter is incremented by adding a predetermined value (1) (S60), and then it is determined whether the counter exceeds D (S70), and when the counter exceeds D, AT simulation control is prohibited. Control (S80).

반면, S30, S40, S50의 판단 결과, 이들 조건들을 모두 만족하지 못하는 경우, 카운터를 리셋하게 된다(S110).On the other hand, if all of these conditions are not satisfied as a result of the determination of S30, S40, and S50, the counter is reset (S110).

한편, S80 이후에 구동풀리(1) 목표회전수를 엔진최대점으로 고정하고(S90), 고정된 구동풀리(1) 목표회전수를 기반으로 목표 변속비가 연속적으로 감소되도록 변경함으로써, 종동풀리(3) 회전수가 증가하게 되는바, 이에 차속이 증가하게 된다(S100).On the other hand, after the S80, the driving pulley 1 is fixed to the maximum engine speed (S90), and the fixed driving pulley 1 is changed to continuously reduce the target transmission ratio based on the target rotation speed, the driven pulley ( 3) Since the number of revolutions increases, the vehicle speed increases (S100).

상술한 바와 같이, 본 발명은 AT모사제어를 통해 업시프트 변속모드에 진입하여 주행하는 과정에서, 차량의 최고차속이 필요한 주행상황에 진입한 경우, AT모사제어를 통한 업시프트 제어를 금지하고, 목표 변속비를 연속적으로 가변하는 무단변속제어를 실시함으로써, 엔진의 최대 파워점을 유지하게 되는바, 차량의 최대 구동력을 확보하여 차속을 상승시키게 되고, 이에 차속이 감소하는 것을 방지하게 된다.As described above, the present invention prohibits the upshift control through the AT simulation control when the vehicle enters a driving situation in which the highest vehicle speed is required in the process of entering and driving the upshift shift mode through the AT simulation control, By performing continuously variable control to continuously change the target transmission ratio, the maximum power point of the engine is maintained, thereby securing the maximum driving force of the vehicle to increase the vehicle speed, thereby preventing the vehicle speed from decreasing.

한편, 본 발명은 상기한 구체적인 예에 대해서만 상세히 설명되었지만 본 발명의 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속함은 당연한 것이다.On the other hand, the present invention has been described in detail only with respect to the specific examples described above, but it is apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and it is natural that such modifications and modifications belong to the appended claims. .

1 : 구동풀리
3 : 종동풀리
5 : 휠속도센서
7 : 컨트롤러1: Driving pulley
3: Follower pulley
5: Wheel speed sensor
7: controller

Claims (4)

컨트롤러가 파워온 업시프트 변속시, 구동풀리 회전수와 종동풀리 회전수에 의해 결정되는 목표변속비를 단계적으로 변화시켜 유단변속을 모사한 변속을 실시하는 유단변속단계;
컨트롤러가 APS와, 차량가속도를 체크하는 체크단계; 및
컨트롤러가 상기 APS가 설정값 초과이고, 차량가속도가 일정값 미만인 경우, 파워온 업시프트 변속시, 상기 목표변속비를 연속적으로 변화시켜 무단변속을 실시하는 무단변속단계;를 포함하는 무단변속기용 변속 제어방법.A step-shifting step in which the controller performs step-by-step shifting by simulating the step shift by changing the target shift ratio determined by the number of rotations of the driven pulley and the number of driven pulleys during power-on upshift shifting;
A controller checks the APS and the vehicle acceleration; And
When the APS exceeds the set value, and the vehicle acceleration is less than a predetermined value, when the power-on upshift is shifted, the stepless speed change step of continuously changing the target speed ratio to continuously perform the speed change; Way. 청구항 1에 있어서,
상기 무단변속단계에서는,
엔진의 최대허용회전수를 상기 구동풀리 목표회전수로 설정하고;
상기 설정된 구동풀리 목표회전수를 기준으로 상기 목표변속비를 연속적으로 변화시켜 종동풀리 회전수를 제어하는 것을 특징으로 하는 무단변속기용 변속 제어방법.The method according to claim 1,
In the stepless step,
Setting the maximum allowable rotational speed of the engine as the target rotational speed of the driving pulley;
A variable speed control method for a continuously variable transmission, characterized in that by continuously changing the target transmission ratio based on the set driving pulley target rotational speed, the driven pulley rotational speed is controlled. 청구항 1에 있어서,
상기 체크단계 이 후에, 상기 APS가 설정값 초과이고, 차량가속도가 일정값 미만인 경우 카운터를 누적하고, 상기 카운터가 일정값 이상시, 상기 무단변속단계에 진입하도록 제어하는 것을 특징으로 하는 무단변속기용 변속 제어방법.The method according to claim 1,
After the check step, if the APS exceeds the set value, and the vehicle acceleration is less than a certain value, accumulates a counter, and when the counter is above a certain value, for the continuously variable transmission characterized in that to control to enter the stepless speed change step Shift control method. 청구항 1에 있어서,
상기 무단변속단계에서는, 차량가속도 변화량이 일정값 미만인지 더 판단하는 것을 특징으로 하는 무단변속기용 변속 제어방법.The method according to claim 1,
In the continuously variable step, the variable speed control method for a continuously variable transmission, characterized in that further determining whether the amount of vehicle acceleration change is less than a predetermined value.
KR1020180123328A 2018-10-16 2018-10-16 Shifting control method for continuously variable transmission KR20200042991A (en)

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Publication number Priority date Publication date Assignee Title
CN112356842A (en) * 2020-11-20 2021-02-12 苏州智加科技有限公司 Gear adjusting method, gear adjusting device, gear adjusting equipment and storage medium of automatic driving vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120023444A (en) 2010-09-03 2012-03-13 콘티넨탈 오토모티브 시스템 주식회사 System and method for detecting slip of continuous variable teansmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120023444A (en) 2010-09-03 2012-03-13 콘티넨탈 오토모티브 시스템 주식회사 System and method for detecting slip of continuous variable teansmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112356842A (en) * 2020-11-20 2021-02-12 苏州智加科技有限公司 Gear adjusting method, gear adjusting device, gear adjusting equipment and storage medium of automatic driving vehicle
CN112356842B (en) * 2020-11-20 2022-03-18 苏州智加科技有限公司 Gear adjusting method, gear adjusting device, gear adjusting equipment and storage medium of automatic driving vehicle

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