KR20190020212A - Method for controlling reverse driving of continuously variable transmission - Google Patents
Method for controlling reverse driving of continuously variable transmission Download PDFInfo
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- KR20190020212A KR20190020212A KR1020170103947A KR20170103947A KR20190020212A KR 20190020212 A KR20190020212 A KR 20190020212A KR 1020170103947 A KR1020170103947 A KR 1020170103947A KR 20170103947 A KR20170103947 A KR 20170103947A KR 20190020212 A KR20190020212 A KR 20190020212A
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
- F16H2059/708—Sensing reverse gear, e.g. by a reverse gear switch
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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
- 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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Abstract
Description
본 발명은 무단변속기 차량이 후진주행될 경우, 차속이 제한되는 것을 방지하도록 제어하는 무단변속기 차량의 후진시 제어방법에 관한 것이다.The present invention relates to a control method for reversing the continuously variable transmission vehicle to prevent the vehicle speed from being restricted when the continuously variable transmission vehicle is driven backward.
일반적으로 차량의 변속장치는 엔진의 구동력을 구동륜에 전달하는 기능을 수행하는데, 변속기에는 운전자가 직접 변속단을 선택하여 조작하는 수동 변속기, 차량 주행 조건에 따라 자동적으로 변속이 이루어지는 자동 변속기, 각 변속단 사이에 특정한 변속 영역없이 무단으로 연속적인 변속이 이루어지는 무단변속기로 구분된다.In general, the transmission of the vehicle transmits the driving force of the engine to the driving wheels. The transmission includes a manual transmission in which a driver selects and operates a shift stage directly, an automatic transmission automatically shifted according to vehicle driving conditions, and each shift. It is categorized as a continuously variable transmission in which continuously shifting is performed without a specific shift range between stages.
특히, 무단변속기는 R단으로 차량이 주행될 시, 페달 답입량에 관계없이 특정변속비로 제한되는데 이 경우에 차속이 증가할수록 엔진RPM이 과도하게 상승하여 차량 내구성이 저하되는 문제점이 있다.In particular, the continuously variable transmission is limited to a specific speed ratio regardless of the pedal depression amount when the vehicle is driven in the R stage. In this case, as the vehicle speed increases, the engine RPM increases excessively, thereby deteriorating vehicle durability.
이에 따라 무단변속기 차량은 R단 주행시 차속을 제한함으로써 엔진RPM이 과도하게 상승하는 것을 방지하도록 마련되기도 하였으나, 이는 승객이 원하는 차량 주행성을 저해시키는 요인이 된다.Accordingly, the continuously variable transmission vehicle has been provided to prevent excessive rise of the engine RPM by limiting the vehicle speed during the R stage driving, but this becomes a factor that impairs the desired vehicle driving ability of the passenger.
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 are only 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.
본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로 무단변속기가 적용된 차량이 후진주행 중일 경우에 운전자의 요구에 따라 최고차속을 확보할 수 있는 무단변속기 차량의 후진시 제어방법을 제공하는데 그 목적이 있다.An object of the present invention is to provide a control method for reversing a continuously variable transmission vehicle that can secure a maximum vehicle speed according to a driver's request when a vehicle to which the continuously variable transmission is applied is driven backward. .
상기의 목적을 달성하기 위한 본 발명에 따른 무단변속기 차량의 후진시 제어방법은 제어부가 변속레버의 조작위치를 감지하는 단계; 상기 감지단계 수행결과, 변속레버가 R레인지에 위치할 경우, 상기 제어부가 APS값을 기설정된 기준값과 비교하는 단계; 및 상기 비교단계 수행결과, APS값이 기준값 이상일 경우, 상기 제어부가 APS값과 차속에 따라 기맵핑된 변속패턴에 기반하여 무단변속기의 변속비를 가변제어하는 단계;를 포함할 수 있다.In accordance with an aspect of the present invention, a control method for reversing a continuously variable transmission vehicle includes: detecting, by a controller, an operation position of a shift lever; As a result of performing the sensing step, when the shift lever is located at the R range, comparing the APS value with a preset reference value by the controller; And if the APS value is equal to or greater than a reference value, the control unit variably controlling the speed ratio of the continuously variable transmission based on the APS value and the shift pattern pre-mapped according to the vehicle speed.
상기 비교단계 수행결과, APS값이 기준값 미만일 경우, 상기 제어부가 무단변속기를 기설정된 설정변속비로 고정제어하는 단계;를 더 포함할 수 있다.And, if the APS value is less than the reference value, as a result of performing the comparing step, controlling the continuously variable transmission to a preset speed ratio.
상기 가변제어단계 후, 상기 제어부가 APS값을 모니터링하는 단계; 및 상기 모니터링단계 수행결과, APS값이 0일 경우, 상기 제어부가 무단변속기의 상향변속을 금지하는 단계;를 더 포함할 수 있다.Monitoring, by the controller, an APS value after the variable control step; And if the APS value is 0 as a result of performing the monitoring step, controlling the upshift of the continuously variable transmission by the controller.
상기 모니터링단계 수행결과, APS값이 기준값 이상일 경우, 상기 제어부는 상기 가변제어단계를 수행하는 것을 특징으로 할 수 있다.As a result of performing the monitoring step, when the APS value is greater than or equal to the reference value, the controller may perform the variable control step.
상기 모니터링단계 수행결과, APS값이 0을 초과하면서 기준값 미만일 경우, 상기 제어부는 상기 고정제어단계를 수행하는 것을 특징으로 할 수 있다.As a result of performing the monitoring step, when the APS value exceeds 0 and is less than the reference value, the controller may perform the fixed control step.
상술한 바와 같은 구조로 이루어진 무단변속기 차량의 후진시 제어방법에 따르면 운전자가 가속페달을 밟는 양에 따라 차량 후진시 최대 차속을 확보할 수 있어 차량 주행성을 향상시킬 수 있다.According to the control method for reversing the continuously variable transmission vehicle having the structure as described above, it is possible to secure the maximum vehicle speed when reversing the vehicle according to the amount of stepping on the accelerator pedal.
또한, 후진주행 중 LFU(Lift Foot Up) 변속 상황이 발생할 경우, 업시프트를 금지함으로써 무단변속기 차량의 언더드라이브(UD) 복귀 성능을 향상시켜 차량 발진시 가속응답성이 저하되는 것을 방지할 수 있다. In addition, when the LFU (Lift Foot Up) shifting situation occurs during reverse driving, the upshift is prohibited to improve the underdrive (UD) return performance of the continuously variable transmission vehicle, thereby preventing the acceleration response when the vehicle starts. .
도 1은 본 발명의 일 실시예에 따른 무단변속기 차량의 후진시 제어방법을 도시한 순서도,
도 2는 본 발명의 무단변속기 차량의 후진시 제어방법에 따른 APS값 대비 변속비 변화를 도시한 그래프,
도 3은 본 발명의 일 실시예에 따른 LFU 금지로직을 도시한 그래프이다.1 is a flowchart illustrating a control method for reversing in a continuously variable transmission vehicle according to an exemplary embodiment of the present invention.
2 is a graph showing a change in speed ratio to an APS value according to a control method for reversing in a continuously variable transmission vehicle according to the present invention;
Figure 3 is a graph showing the LFU inhibition logic according to an embodiment of the present invention.
이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예에 따른 무단변속기 차량의 후진시 제어방법에 대하여 살펴본다.Hereinafter, with reference to the accompanying drawings looks at the control method when the reverse of the continuously variable transmission vehicle according to an embodiment of the present invention.
도 1은 본 발명의 일 실시예에 따른 무단변속기 차량의 후진시 제어방법을 도시한 순서도이다. 도 1을 참조하면, 본 발명의 무단변속기 차량의 후진시 제어방법은 제어부가 변속레버의 조작위치를 감지하는 단계(S10); 상기 감지단계(S10) 수행결과, 변속레버가 R레인지에 위치할 경우, 상기 제어부가 APS값을 기설정된 기준값과 비교하는 단계(S20); 및 상기 비교단계(S20) 수행결과, APS값이 기준값 이상일 경우, 상기 제어부가 APS값과 차속에 따라 기맵핑된 변속패턴에 기반하여 무단변속기의 변속비를 가변제어하는 단계(S30);를 포함할 수 있다.1 is a flowchart illustrating a method for controlling reversing of a continuously variable transmission vehicle according to an exemplary embodiment of the present invention. Referring to Figure 1, the control method when the reverse of the continuously variable transmission vehicle of the present invention, the control unit for detecting the operation position of the shift lever (S10); As a result of performing the sensing step (S10), when the shift lever is located in the R range, the control unit comparing the APS value with a preset reference value (S20); And if the comparison step (S20) is performed, and if the APS value is greater than or equal to the reference value, the control unit variably controls the transmission ratio of the continuously variable transmission based on the shift pattern mapped according to the APS value and the vehicle speed (S30). Can be.
본 발명의 제어부는 변속레버가 R레인지로 조작된 경우에, 가속페달의 답입량을 센싱하는 APS(Accelerator Pedal Sensor)의 센싱값을 감지한다.The controller of the present invention senses a sensing value of an accelerator pedal sensor (APS) that senses the depression amount of the accelerator pedal when the shift lever is operated in the R range.
여기서, 제어부는 APS값이 기설정된 기준값 이상일 경우에 무단변속기의 변속비를 변속패턴에 따라 가변제어함으로써, 운전자의 가속의지에 대응되는 차량의 차속을 구현할 수 있다.Herein, when the APS value is equal to or greater than a preset reference value, the controller may variably control the speed ratio of the continuously variable transmission according to the shift pattern, thereby realizing a vehicle speed corresponding to the driver's acceleration will.
본 발명에서 상기 비교단계(S20) 수행결과, APS값이 기준값 미만일 경우, 상기 제어부가 무단변속기를 기설정된 설정변속비로 고정제어하는 단계(S60);를 더 포함할 수 있다.In the present invention, when the comparison step (S20) is performed, when the APS value is less than the reference value, the control unit for controlling the continuously variable transmission at a predetermined speed ratio (S60); may further include.
즉, 제어부는 변속레버가 R레인지로 전환되더라도 APS값이 기준값 미만이라면 운전자에 의한 가속페달 답입량이 작다고 판단하여, 차량의 언더드라이브(UD:Under Drive) 복귀 성능을 확보하기 위해 무단변속기를 설정변속비로만 고정 제어한다.That is, even if the shift lever is switched to the R range, the controller determines that the accelerator pedal depression by the driver is small if the APS value is less than the reference value, and sets the continuously variable transmission to secure the underdrive (UD) return performance of the vehicle. Fixed control only with gear ratio.
여기서, 언더드라이브(UD) 복귀 성능이란, 무단변속기의 특성상 정차시에는 변속을 수행할 수 없기 때문에, 운전자가 차량 후진주행중 가속페달에서 발을 뗄 경우, 차량이 정차하기 전에 풀리비가 저속단으로 복귀하도록 다운시프트되는 성능을 의미한다.Here, underdrive (UD) return performance means that the shifting cannot be performed when the vehicle is stopped due to the characteristics of the continuously variable transmission, so when the driver takes his foot off the accelerator pedal while driving backward, the pulley ratio returns to the low speed stage before the vehicle stops. Performance that is downshifted to
이러한 언더드라이브(UD) 복귀 성능을 향상시키기 위해서는 차량 정차가 시작된 시점으로부터 다운시프트에 소요되는 시간을 충분히 확보하거나, 차량 주행 시 무단변속기가 저단으로만 주행되는 방법이 있다.In order to improve the performance of the underdrive UD, there is a method of sufficiently securing the time required for downshifting from the time when the vehicle stops, or when the continuously variable transmission is driven only at the lower stage when the vehicle stops.
따라서, 변속레버가 R레인지에 위치한 상태에서 APS값이 기준값 미만일 경우에는 무단변속기가 비교적 저단으로 형성된 설정변속비로 고정제어되도록 마련될 수 있다. 하지만, 이 경우에 무단변속기가 저단인 설정변속비로 고정된 상태에서 가속페달이 증가하면 엔진RPM이 과도하게 상승할 수 있는바, 차속을 일정차속으로 제한함으로써 엔진이 과도하게 작동되어 과열되거나 고장나는 현상을 방지할 수 있다.Therefore, when the APS value is less than the reference value in the state where the shift lever is located at the R range, the continuously variable transmission may be provided to be fixedly controlled at a predetermined transmission ratio formed at a relatively low stage. However, in this case, if the accelerator pedal is increased while the continuously variable transmission is fixed at the low gear ratio, the engine RPM may be excessively increased. By limiting the vehicle speed to a constant speed, the engine may be overheated or fail. The phenomenon can be prevented.
한편, 본 발명은 변속레버가 R레인지에 위치하면서 APS값이 기준값 이상일 경우에, 무단변속기가 설정변속비보다 고속단의 변속비를 가지도록 변속패턴에 기반하여 변속비를 가변제어함으로써 운전자가 요구하는 가속성능을 충족시킨다.On the other hand, the present invention, when the shift lever is located in the R range and the APS value is higher than the reference value, the acceleration performance required by the driver by varying the speed ratio based on the shift pattern so that the continuously variable transmission has a speed ratio of the high speed stage than the set speed ratio. Meets.
도 2는 본 발명의 무단변속기 차량의 후진시 제어방법에 따른 APS값 대비 변속비 변화를 도시한 그래프이다.FIG. 2 is a graph showing a change in speed ratio versus an APS value according to a control method for reversing in a continuously variable transmission vehicle according to the present invention.
도 2를 참조하면, 예를 들어 기준값이 40%라고 설정된 경우에 APS값이 40% 미만일 경우에는 무단변속기의 변속비가 설정변속비로 고정 제어된다. 이때, 차속은 최대 30kph 정도로 제한된다. 한편, APS값이 40% 이상일 경우에는 변속비가 변속패턴에 따라 가변되도록 마련됨으로써, 엔진RPM을 과도하게 상승시키지 않으면서 운전자의 고속주행 요구를 충족시켜줄 수 있다.2, for example, when the reference value is set to 40%, when the APS value is less than 40%, the speed ratio of the continuously variable transmission is fixedly controlled to the set speed ratio. At this time, the vehicle speed is limited to about 30kph maximum. On the other hand, when the APS value is 40% or more, the speed ratio is provided to be varied according to the shift pattern, thereby satisfying the driver's high-speed driving demand without excessively increasing the engine RPM.
더 나아가, 본 발명의 무단변속기 차량의 후진시 제어방법은 상기 가변제어단계(S30) 후 상기 제어부가 APS값을 모니터링하는 단계(S40); 및 상기 모니터링단계(S40) 수행결과, APS값이 0일 경우, 상기 제어부가 무단변속기의 상향변속을 금지하는 단계(S50);를 더 포함할 수 있다.Further, the control method when reversing of the continuously variable transmission vehicle of the present invention includes the step of the control unit monitors the APS value after the variable control step (S30) (S40); And when the monitoring step S40 is performed and the APS value is 0, the control unit prohibits the upshift of the continuously variable transmission (S50).
상기 모니터링단계(S40)에서 APS값이 0이 되는 상황은 운전자가 가속페달에서 발을 뗀 상황이라 판단할 수 있다.The situation in which the APS value becomes 0 in the monitoring step S40 may be determined as a situation where the driver takes his foot off the accelerator pedal.
즉, 상기 가변제어단계(S30)를 통해 APS값과 차속에 따라 차량이 변속제어되는 상황에서 운전자가 가속페달에서 발을 떼는 상황이 발생하면, 일반적으로는 변속패턴에 의해 상향변속이 수행된다. 하지만, 본 발명에서는 언더드라이브 복귀 성능을 확보하기 위해 변속패턴에 의해 상향변속이 이루어지는 것을 금지한다. 따라서, LFU(Lift Foot Up) 변속을 방지하여 저단 변속단 유지에 따라 차량의 가속응답성을 향상시킬 수 있다.That is, when the driver releases his / her foot from the accelerator pedal in a situation in which the vehicle shift control is performed according to the APS value and the vehicle speed through the variable control step (S30), the upshift is generally performed by the shift pattern. However, in the present invention, the upshift is prevented by the shift pattern in order to secure the underdrive return performance. Therefore, it is possible to prevent the LFU (Lift Foot Up) shift to improve the acceleration response of the vehicle according to the maintenance of the low gear stage.
도 3은 본 발명의 일 실시예에 따른 LFU 금지로직을 도시한 그래프이다. 도 3을 참조하면, 3단으로 후진주행 중 APS가 0이 되는 상황에서 상향변속을 금지할 경우와 상향변속을 허용할 경우를 비교할 수 있다. Figure 3 is a graph showing the LFU inhibition logic according to an embodiment of the present invention. Referring to FIG. 3, it is possible to compare the case where the upshift is prohibited and the case where the upshift is allowed in the situation where the APS becomes 0 during the reverse driving in the third stage.
상향변속이 금지된 경우라면 실선과 같이 3단이 유지된 상태에서 타행주행으로 인해 엔진RPM이 감소하면서 차량 정지 직전에 자연스럽게 1단으로 다운시프트가 이루어진다. If the upshift is prohibited, the engine RPM decreases due to the coasting while the third stage is maintained, such as a solid line, and the downshift is naturally performed to the first stage just before the vehicle stops.
반면, 상향변속이 허용된 경우라면 점선으로 도시된 바와 같이 LFU이 이행되어 5단으로 변속되고 최종적으로 차량이 정지하는 시점에는 최대 3단까지만 다운시프트가 가능하게 된다. 즉, 다시 저단으로 주행하기 위해 변속을 실행하는 과정이 부가적으로 필요로 되어지는바, 차량의 가속응답성이 저하될 수 있다.On the other hand, if the upshift is allowed, as shown by the dotted line, the LFU is shifted to five shifts, and when the vehicle finally stops, up to three shifts can be downshifted. That is, the process of performing the shift in order to drive to the lower stage again is additionally required, so that the acceleration response of the vehicle may be deteriorated.
따라서, 본 발명은 LFU이 이행될 수 있는 상황에서 LFU을 금지함으로써 무단변속기 차량의 언더드라이브(UD) 복귀 성능을 최대한 확보할 수 있다.Therefore, the present invention can maximize the underdrive (UD) return performance of the continuously variable transmission vehicle by prohibiting the LFU in a situation where the LFU can be implemented.
만약, 상기 모니터링단계(S40) 수행결과, APS값이 기준값 이상일 경우, 상기 제어부는 상기 가변제어단계(S30)를 수행한다. 반대로, APS값이 0을 초과하면서 기준값 미만일 경우, 상기 제어부는 상기 고정제어단계(S60)를 수행한다.If, as a result of performing the monitoring step (S40), if the APS value is greater than or equal to the reference value, the controller performs the variable control step (S30). On the contrary, when the APS value exceeds 0 and is less than the reference value, the controller performs the fixed control step (S60).
상술한 바와 같은 구조로 이루어진 무단변속기 차량의 후진시 제어방법에 따르면 운전자가 가속페달을 밟는 양에 따라 차량 후진시 최대 차속을 확보할 수 있어 차량 주행성을 향상시킬 수 있다.According to the control method for reversing the continuously variable transmission vehicle having the structure as described above, it is possible to secure the maximum vehicle speed when reversing the vehicle according to the amount of stepping on the accelerator pedal.
또한, 후진주행 중 LFU(Lift Foot Up) 변속 상황이 발생할 경우, 업시프트를 금지함으로써 무단변속기 차량의 언더드라이브(UD) 복귀 성능을 향상시켜 차량 발진시 가속응답성이 저하되는 것을 방지할 수 있다. In addition, when the LFU (Lift Foot Up) shifting situation occurs during reverse driving, the upshift is prohibited to improve the underdrive (UD) return performance of the continuously variable transmission vehicle, thereby preventing the acceleration response when the vehicle starts. .
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.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.
S10: 감지단계
S20: 비교단계
S30: 가변제어단계
S40: 모니터링단계
S50: 금지단계
S60: 가변제어단계S10: detection step
S20: comparison step
S30: variable control step
S40: monitoring step
S50: Prohibited Step
S60: variable control step
Claims (5)
상기 감지단계 수행결과, 변속레버가 R레인지에 위치할 경우, 상기 제어부가 APS값을 기설정된 기준값과 비교하는 단계; 및
상기 비교단계 수행결과, APS값이 기준값 이상일 경우, 상기 제어부가 APS값과 차속에 따라 기맵핑된 변속패턴에 기반하여 무단변속기의 변속비를 가변제어하는 단계;를 포함하는 무단변속기 차량의 후진시 제어방법.Detecting, by the controller, an operation position of the shift lever;
As a result of performing the sensing step, when the shift lever is located at the R range, comparing the APS value with a preset reference value by the controller; And
When the APS value is equal to or greater than the reference value, the control unit variably controls the transmission ratio of the continuously variable transmission based on the APS value and the shift pattern mapped according to the vehicle speed. Way.
상기 비교단계 수행결과, APS값이 기준값 미만일 경우, 상기 제어부가 무단변속기를 기설정된 설정변속비로 고정제어하는 단계;를 더 포함하는 무단변속기 차량의 후진시 제어방법.The method according to claim 1,
And controlling, by the controller, the continuously variable transmission to a preset speed ratio when the APS value is less than a reference value.
상기 가변제어단계 후, 상기 제어부가 APS값을 모니터링하는 단계; 및
상기 모니터링단계 수행결과, APS값이 0일 경우, 상기 제어부가 무단변속기의 상향변속을 금지하는 단계;를 더 포함하는 무단변속기 차량의 후진시 제어방법.The method according to claim 2,
Monitoring, by the controller, an APS value after the variable control step; And
And if the APS value is 0, the control unit prohibits the upshift of the continuously variable transmission.
상기 모니터링단계 수행결과, APS값이 기준값 이상일 경우, 상기 제어부는 상기 가변제어단계를 수행하는 것을 특징으로 하는 무단변속기 차량의 후진시 제어방법.The method according to claim 3,
And the control unit performs the variable control step when the APS value is equal to or greater than a reference value as a result of performing the monitoring step.
상기 모니터링단계 수행결과, APS값이 0을 초과하면서 기준값 미만일 경우, 상기 제어부는 상기 고정제어단계를 수행하는 것을 특징으로 하는 무단변속기 차량의 후진시 제어방법.
The method according to claim 3,
And the control unit performs the fixed control step when the APS value exceeds 0 and is less than the reference value as a result of performing the monitoring step.
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| JPH0519713U (en) * | 1991-08-26 | 1993-03-12 | ダイキン工業株式会社 | Mechanical hydraulic transmission |
| KR101316426B1 (en) | 2011-12-29 | 2013-10-08 | 현대 파워텍 주식회사 | Reverse gear structure of continuously variable transmission for vehicle |
| JP2016121635A (en) * | 2014-12-25 | 2016-07-07 | ダイハツ工業株式会社 | Control system of internal combustion engine in vehicle backward traveling |
| JP2016156458A (en) * | 2015-02-25 | 2016-09-01 | いすゞ自動車株式会社 | Reverse control system for vehicle, vehicle, and reverse control method of vehicle |
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| JPH0519713U (en) * | 1991-08-26 | 1993-03-12 | ダイキン工業株式会社 | Mechanical hydraulic transmission |
| KR101316426B1 (en) | 2011-12-29 | 2013-10-08 | 현대 파워텍 주식회사 | Reverse gear structure of continuously variable transmission for vehicle |
| JP2016121635A (en) * | 2014-12-25 | 2016-07-07 | ダイハツ工業株式会社 | Control system of internal combustion engine in vehicle backward traveling |
| JP2016156458A (en) * | 2015-02-25 | 2016-09-01 | いすゞ自動車株式会社 | Reverse control system for vehicle, vehicle, and reverse control method of vehicle |
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