KR101405220B1 - Toral controlling system of continuously variable transmission on vehicle and method thereof - Google Patents

Toral controlling system of continuously variable transmission on vehicle and method thereof Download PDF

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KR101405220B1
KR101405220B1 KR1020120144845A KR20120144845A KR101405220B1 KR 101405220 B1 KR101405220 B1 KR 101405220B1 KR 1020120144845 A KR1020120144845 A KR 1020120144845A KR 20120144845 A KR20120144845 A KR 20120144845A KR 101405220 B1 KR101405220 B1 KR 101405220B1
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South Korea
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control
vehicle
fuel
fuel cut
control unit
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KR1020120144845A
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Korean (ko)
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방정환
신석기
김세준
김성현
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기아자동차 주식회사
현대자동차 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/101—Infinitely variable gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B60W2510/0652—Speed change rate
    • 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
    • F16H61/14—Control of torque converter lock-up clutches
    • F16H61/143—Control of torque converter lock-up clutches using electric control means
    • F16H2061/146—Control of torque converter lock-up clutches using electric control means for smoothing gear shift shock

Abstract

Disclosed is a device and method to integrally control a vehicle with a continuously variable transmission which cooperates and controls a vehicle to enter a fuel cut-off control by requesting to enter the fuel cut-off control to a transmission manage system (TMS) and an engine manage system when a lock-up control condition lasts for a predetermined period without entering the fuel cut-off control. The present invention includes: a step of detecting vehicle drive information including RPM, a driving speed, and the displacement of an acceleration pedal during a drive; a step of determining whether or not a vehicle speed, according to the drive information, is over a preset vehicle speed, and a vehicle enters the fuel cut-off control according to a lift foot up shift; a step of determining whether the vehicle enters a lock-up control joining a damper clutch when the vehicle does not enter the fuel cut-off control according to the lift put-up; and a step of performing the fuel cut-off control by requesting to a fuel jetting device when the vehicle enters the lock-up control and the time elapsed after entering the lock-up control exceeds a preset time.

Description

무단변속기 차량의 총합 제어장치 및 방법{TORAL CONTROLLING SYSTEM OF CONTINUOUSLY VARIABLE TRANSMISSION ON VEHICLE AND METHOD THEREOF}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates generally to a continuously variable transmission,

본 발명은 무단변속기의 차량의 총합 제어장치에 관한 것으로, 보다 상세하게는 연료차단제어를 진입하지 않은 상태로 감속직결 조건이 일정시간 이상 유지될 경우 변속제어유닛(Transmiss Management System ; TMS)에서 엔진제어유닛(Engine Management System : EMS)에 연료차단제어의 진입을 요청하여 연료차단제어에 진입될 수 있도록 협조 제어하는 무단변속기 차량의 총합 제어장치 및 방법에 관한 것이다.More particularly, the present invention relates to an apparatus for controlling a total amount of a vehicle in a continuously variable transmission, and more particularly, to a system for controlling a total of a vehicle in a transmission control unit (TMS) The present invention relates to an apparatus and method for controlling an overall control of a continuously variable transmission vehicle in which a fuel cut-off control is requested to be entered into an engine management system (EMS) so as to be able to enter fuel cut-off control.

차량에 적용되는 자동변속기는 주행속도와 가속페달의 변위(스로틀 밸브의 개도량[TPS(%)])에 따라 TCU(Transmission control unit)가 액추에이터를 작동시켜 유압을 제어함으로써, 목표 변속단으로 자동 변속이 이루어지게 하는 것이다.An automatic transmission applied to a vehicle is controlled by the transmission control unit (TCU) to control the hydraulic pressure according to the travel speed and the displacement of the accelerator pedal (opening amount of the throttle valve [TPS (%)] So that a shift is made.

상기 자동변속기는 무단변속기, 다단변속기 및 자동화 수동변속기를 포함하여 통칭할 수 있다.The automatic transmission may be collectively referred to as a continuously variable transmission, a multi-stage transmission, and an automatic manual transmission.

자동변속기는 목표 변속단으로 변속이 실행되는 경우 작동 상태에서 작동 해제되는 해방측 요소와 해제 상태에서 작동 상태로 변환되는 결합측 요소를 보유하게 되며, 해방측 및 결합측 요소의 해제 및 작동은 각 요소에 공급되는 유압에 의해 실행된다.The automatic transmission has a release side element that is released from the operating state when the shift is performed to the target shift position and an engagement side element that is changed from the released state to the operating state and release and operation of the release side and engagement side element Is performed by the hydraulic pressure supplied to the element.

이러한 자동변속기는 연비 향상을 위하여 일정의 운전영역에서 댐퍼 클러치를 결합하는 감속직결제어를 적용하고 있다.In order to improve fuel economy, such automatic transmission employs a deceleration direct coupling control which couples a damper clutch in a certain operating range.

차량이 주행되는 상태에서 운전자가 가속페달을 완전히 오프한 타력 주행 중에 업 시프트 패턴을 만나게 되면 업 시프트를 실행하고, 감속직결 제어영역에 진입하면 댐퍼 클러치를 결합시키며, 엔진제어수단은 연료차단제어를 실행한다.Shift operation is performed when the driver meets the upshift pattern while the driver is driving the vehicle with the accelerator pedal fully off while the vehicle is running, and when the driver enters the deceleration direct control area, the damper clutch is engaged. .

차량에서는 배기가스의 악화를 회피하기 위해 연료차단제어에 진입하기 위한 최저 엔진회전수와 연료차단제어를 종료하는 엔진회전수간에 어느 정도의 히스테리시스(Hysteresis)를 가지고 있다.The vehicle has some degree of hysteresis between the minimum engine speed for entering the fuel cutoff control and the engine speed for terminating the fuel cutoff control in order to avoid the deterioration of the exhaust gas.

따라서, 자동변속기(다단변속기)나 무단변속기가 장착되는 차량의 경우 연료차단제어에 빈번하게 진입되어 운전성을 악화시키고 있다.Therefore, in the case of a vehicle equipped with an automatic transmission (multi-stage transmission) or a continuously variable transmission, frequent entry into the fuel cut-off control deteriorates the drivability.

그리고, 자동변속기(다단변속기)가 장착되는 차량의 경우 히스테리시스 구간에서 연료차단제어에 진입하지 못하더라도 연비악화에 미치는 영향은 미미하나 무단변속기가 장착되는 차량의 경우 연료차단제어에 진입하지 못하는 경우 연비악화에 큰 영향을 발생시킬 수 있다.In the case of a vehicle equipped with an automatic transmission (multi-speed transmission), even if the fuel cut-off control can not be entered in the hysteresis period, the influence on the fuel consumption deterioration is insignificant. However, A large influence can be generated.

공개특허공보 제10-2010-0063567호(2010.06.11.)Patent Document 1: Japanese Patent Application Laid-Open No. 10-2010-0063567 (June 11, 2010) 공개특허공보 제10-2009-0040010호(2009.04.23.)Patent Publication No. 10-2009-0040010 (2009.04.23.)

본 발명은 이러한 문제점을 해결하고자 개발된 것으로, 그 목적은 연료차단제어를 진입하지 않은 상태로 감속직결 조건이 일정시간 이상 유지될 경우 변속제어유닛에서 엔진제어유닛에 연료차단제어의 진입을 요청하여 협조 제어를 통해 연료차단제어에 진입될 수 있도록 하는 무단변속기 차량의 총합 제어방법을 제공하고자 한다.An object of the present invention is to provide a shift control unit for requesting an engine control unit to enter a fuel cut-off control when a deceleration direct-drive condition is maintained for a predetermined time without entering fuel cut-off control So that the fuel cut-off control can be entered through the cooperative control.

본 발명의 실시예에 따르는 특징은 차량 운행상태에서 엔진회전수, 주행차속, 가속페달 변위를 포함하는 운전정보를 검출하는 운전정보검출부; 상기 운전정보검출부에서 제공되는 주행 차속이 기준차속 이상이고, 리프트 풋 업에 따라 엔진회전수가 연료차단제어의 진입을 만족하나 연료차단제어에 진입되지 않은 상태이며, 댐퍼클러치가 결합된 감속직결제어에 진입되어 일정시간 이상 유지되면 엔진제어유닛에 연료차단제어를 협조 요청하는 변속제어유닛; 상기 변속제어유닛에의 협조 요청에 따라 연료분사장치의 작동을 오프시켜 연료차단제어를 실행하는 엔진제어유닛을 포함하는 무단변속기 차량의 총합 제어장치가 제공된다.According to an embodiment of the present invention, there is provided an engine control apparatus comprising: an operation information detector for detecting operation information including an engine speed, an oncoming vehicle speed, and an accelerator pedal displacement in a vehicle running state; Wherein the running vehicle speed provided by the running information detector is equal to or greater than a reference vehicle speed and the engine speed satisfies the entry of the fuel cutoff control according to the lift foot-up but does not enter the fuel cutoff control, A shift control unit for requesting the engine control unit to cooperate with the fuel cut-off control when it has entered and maintained for a predetermined time or longer; And an engine control unit for turning off the operation of the fuel injection device in response to a request for cooperation with the shift control unit to execute fuel cutoff control.

상기 운전정보검출부는 크랭크 축의 위상 변화 혹은 캠 축의 위상 변화로부터 엔진 회전수를 검출하는 엔진회전수검출부; 변속기의 출력축 회전수로부터 주행 차속을 검출하는 차속검출부; 운전자가 감가속을 위해 작동시키는 가속페달의 변위를 검출하는 가속페달검출부를 포함할 수 있다.Wherein the operation information detecting unit includes: an engine speed detecting unit that detects an engine speed from a phase change of a crankshaft or a phase change of a camshaft; A vehicle speed detector for detecting a running vehicle speed from an output shaft revolution speed of the transmission; And an acceleration pedal detection unit for detecting a displacement of the accelerator pedal that the driver operates for deceleration.

상기 변속제어유닛은 리프트 풋 업에 따라 엔진회전수가 연료차단제어 진입조건을 만족하는 상태에서 연료차단제어 미진입 상태로 감속직결제어에 진입되어 설정된 일정시간 유지되면 엔진제어유닛과 협조 제어하여 연료차단제어를 실행할 수 있다.The shift control unit enters the deceleration direct control state in a state in which the engine rotation speed satisfies the fuel cut-off control entry condition according to the lift foot-up and enters the deceleration direct control state in the fuel cut-off control non-entry state and cooperates with the engine control unit, Control can be executed.

상기 변속제어유닛은 감속직결제어에 진입된 시간이 일정시간 경과하지 않았거나 엔진회전수가 연료재분사 조건을 만족하면 엔진제어유닛에 연료차단제어 협조를 요청하지 않고 현재의 연료분사를 유지할 수 있다.The shift control unit can maintain the current fuel injection without requesting the engine control unit to cooperate with the fuel cut control if the time entered in the deceleration direct coupling control has not elapsed for a predetermined time or if the engine revolution speed satisfies the fuel material injection condition.

또한, 본 발명의 다른 실시예에 따르면 주행상태에서 엔진회전수, 주행차속, 가속페달의 변위를 포함하는 차량 운전정보를 검출하는 과정; 상기 운전정보에서 차속이 설정된 기준차속 이상이고 리프트 풋 업에 따라 연료차단제어에 진입되었는지 판단하는 과정; 상기 리프트 풋 업에 따라 연료차단제어에 진입되지 않았으면 댐퍼 클러치를 결합하는 감속직결제어에 진입되었는지 판단하는 과정; 상기 감속직결제어에 진입되었으면 진입된 경과시간이 설정된 시간을 경과하였으면 연료분사장치에 요청하여 연료차단제어를 실행하는 과정을 포함하는 무단변속기 차량의 총합 제어방법이 제공된다.According to another embodiment of the present invention, there is provided a driving method for a vehicle, comprising: detecting vehicle driving information including engine speed, driving vehicle speed, and displacement of an accelerator pedal in a running state; Determining whether the fuel cut-off control has been entered in accordance with the lift foot-up and the reference vehicle speed at which the vehicle speed is set in the operation information; If it is determined that the fuel cut-off control has not been entered in accordance with the lift foot-up, whether or not the vehicle has entered the deceleration direct coupling control for coupling the damper clutch; And performing fuel cut-off control by requesting the fuel injector if the elapsed time has passed after the predetermined time has elapsed after entering the deceleration direct coupling control.

상기 감속직결제어에 진입된 시간이 일정시간 경과하지 않았거나 엔진회전수가 연료재분사 조건을 만족하면 엔진제어유닛에 연료차단제어 협조를 요청하지 않고 현재의 연료분사를 유지할 수 있다.The current fuel injection can be maintained without requesting the engine control unit to cooperate with the fuel cut control when the time entered in the deceleration direct coupling control has not elapsed or the engine speed satisfies the fuel material injection condition.

이와 같이 본 발명은 무단변속기가 적용되는 차량에서 변속제어유닛과 엔진제어유닛의 협조 제어로 연료차단제어를 안정되게 실행할 수 있어 연료차단제어의 영역을 확장시켜 연비 향상을 제공할 수 있다.As described above, according to the present invention, the fuel cut-off control can be performed stably by the coordinated control of the shift control unit and the engine control unit in the vehicle to which the continuously variable transmission is applied, so that the fuel cut-

도 1은 본 발명의 실시예에 따른 무단변속기 차량의 총합 제어장치를 도시한 도면이다.
도 2는 본 발명의 실시예에 따른 무단변속기 차량의 총합 제어절차를 도시한 흐름도이다.1 is a view showing a total control apparatus for a continuously variable transmission vehicle according to an embodiment of the present invention.
2 is a flowchart illustrating a total control procedure of a continuously variable transmission vehicle according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 실시예를 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세하게 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다.The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 참조 부호를 부여한다.In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are given the same reference numerals throughout the specification.

또한, 도면에서 나타난 각 구성은 설명의 편의를 위해 임의로 나타내었으므로, 본 발명이 반드시 도면에 도시된 바에 한정되지 않는다.In addition, since the components shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings.

도 1은 본 발명의 실시예에 따른 무단변속기 차량의 총합 제어장치를 도시한 도면이다.1 is a view showing a total control apparatus for a continuously variable transmission vehicle according to an embodiment of the present invention.

도 1을 참조하면, 본 발명의 실시예는 운전정보검출부(100), 변속제어유닛(200), 댐퍼 클러치(300), 엔진제어유닛(400) 및 연료분사장치(500)를 포함한다.Referring to FIG. 1, an embodiment of the present invention includes an operation information detecting unit 100, a speed change control unit 200, a damper clutch 300, an engine control unit 400, and a fuel injection device 500.

운전정보검출부(100)는 차량이 운행되는 상태에서 엔진회전수, 주행 차속, 가속페달의 변위 등을 포함하는 전반적인 운전정보를 검출하여 그에 대한 정보를 변속제어유닛(200)에 제공한다.The operation information detector 100 detects the overall operation information including the engine speed, the traveling vehicle speed, the displacement of the accelerator pedal, and the like, and provides information on the overall operation information to the shift control unit 200 while the vehicle is in operation.

상기 운전정보검출부(100)는 크랭크 축의 위상 변화 혹은 캠 축의 위상 변화로부터 엔진 회전수를 검출하는 엔진회전수검출부(101), 변속기의 출력축 회전수로부터 주행 차속을 검출하는 차속검출부(102), 운전자가 감가속을 위해 작동시키는 가속페달의 변위를 검출하는 가속페달검출부(103)를 포함한다.The operation information detector 100 includes an engine speed detector 101 for detecting an engine speed from a phase change of a crankshaft or a phase of a camshaft, a vehicle speed detector 102 for detecting a running vehicle speed from an output shaft speed of the transmission, And an accelerator pedal detecting section (103) for detecting a displacement of the accelerator pedal which is operated for deceleration.

이외에 상기 운전정보검출부(100)는 변속기 오일의 온도를 검출하는 수단, 터빈의 회전속도를 검출하는 수단, 냉각수의 온도를 검출하는 수단 등이 더 포함될 수 있다.In addition, the operation information detecting unit 100 may further include means for detecting the temperature of the transmission fluid, means for detecting the rotational speed of the turbine, means for detecting the temperature of the cooling water, and the like.

변속제어유닛(200)는 상기 운전정보검출부(100)에서 인가되는 정보에 따라 현재의 운행조건에 맞는 목표 변속단 제어와 댐퍼 클러치(300)를 결합시켜 감속직결제어를 실행한다.The shift control unit 200 executes the deceleration direct coupling control by combining the damper clutch 300 with the target speed change stage control corresponding to the current driving conditions according to the information applied from the operation information detection unit 100. [

상기 변속제어유닛(200)은 운전정보검출부(100)에서 제공되는 정보에서 주행 차속이 설정된 기준 차속('A' KPH) 이상이고, 리프트 풋 업(Lift Foot Up)에서 엔진회전수가 연료차단제어의 진입조건을 만족하나, 연료차단제어에 진입되지 않은 상태이며, 댐퍼클러치(300)가 결합된 감속직결제어에 진입된 상태이면 감속직결제어에 진입한 시간을 판정하여 설정된 일정시간을 경과하였으면 엔진제어유닛(400)에 연료차단제어를 요청하여 엔진제어유닛(400)과의 협조 제어로 연료차단제어에 진입할 수 있도록 한다.The shift control unit 200 determines that the running speed of the vehicle is equal to or higher than the reference vehicle speed (A 'KPH) at which the running vehicle speed is set in the information provided by the operation information detecting unit 100, If the entry condition is satisfied but the fuel cut-off control has not been entered and the damper clutch 300 is engaged in the deceleration direct coupling control, the time of entry into the deceleration direct coupling control is judged, Unit 400 to request the fuel cut-off control so that the fuel cut-off control can be entered by cooperative control with the engine control unit 400. [

댐퍼 클러치(300)는 유압의 공급 및 배출을 작동시키는 액추에이터로, 상기 변속제어유닛(200)에서 인가되는 제어신호에 의해 작동되어 감속직결을 실행한다.The damper clutch 300 is an actuator for actuating supply and discharge of hydraulic pressure and is operated by a control signal applied from the shift control unit 200 to execute deceleration direct coupling.

엔진제어유닛(400)는 스로틀 밸브의 개도율, 크랭크 축의 각도, 냉각수의 온도 등을 포함하는 엔진 제어정보에 따라 엔진의 동작을 제어하며, 변속제어유닛(200)에서 CAN 통신으로 인가되는 협조 제어 요청신호에 따라 연료분사장치(500)의 작동을 오프시켜 연료차단제어를 실행한다.The engine control unit 400 controls the operation of the engine in accordance with the engine control information including the opening ratio of the throttle valve, the angle of the crankshaft, the temperature of the cooling water, And turns off the operation of the fuel injection device 500 in accordance with the request signal to execute the fuel cutoff control.

연료분사장치(500)는 인젝터로, 상기 엔진제어유닛(400)에서 인가되는 제어신호에 따라 연소실에 연료량을 분사하여 준다.The fuel injection device 500 injects fuel into the combustion chamber in accordance with a control signal applied from the engine control unit 400 to the injector.

전술한 바와 같은 기능을 포함하는 본 발명의 동작은 다음과 같다.The operation of the present invention including the functions as described above is as follows.

본 발명이 적용되는 무단변속기 차량이 운행되면 운전정보검출부(100)는 엔진회전수, 주행차속, 가속페달의 변위 등을 포함하는 운전정보를 검출하여 변속제어유닛(200)에 제공한다(S101).When the continuously variable transmission vehicle to which the present invention is applied is operated, the operation information detection unit 100 detects the operation information including the engine speed, the traveling vehicle speed, the displacement of the accelerator pedal, and the like, and provides it to the shift control unit 200 (S101) .

이때, 변속제어유닛(200)은 제공되는 운정정보를 분석하여 주행 차속이 설정된 기준차속('A' KPH)을 초과하여 주행되고 있는지를 판단한다(S102).At this time, the shift control unit 200 determines whether the traveling vehicle speed exceeds the reference vehicle speed ('A' KPH) that is set by analyzing the offered information (S102).

상기 변속제어유닛(200)은 S102에서 주행 차속이 설정된 기준차속('A' KPH) 이상이면 엔진회전수가 연료차단제어의 진입조건을 만족하고 리프트 풋 업에 따라 연료차단제어에 진입되었는지를 판단한다(S103).If the running vehicle speed is equal to or higher than the reference vehicle speed ('A' KPH) at which the running vehicle speed is set at S102, the shift control unit 200 determines whether the engine speed satisfies the entry condition of the fuel cutoff control and enters the fuel cutoff control according to the lift foot- (S103).

상기 변속제어유닛(200)은 상기 S103에서 엔진회전수가 연료차단제어의 진입조건을 만족하나 리프트 풋 업에 대하여 연료차단제어에 진입되지 않은 상태이면 댐퍼클러치(300)가 결합된 감속직결제어에 진입된 상태인지를 판단한다(S104).The shift control unit 200 enters the deceleration direct coupling control to which the damper clutch 300 is coupled if the engine speed satisfies the entry condition of the fuel cut-off control at S103 but the fuel cut-off control is not entered for the lift foot- (S104).

상기 변속제어유닛(200)은 상기 S104에서 댐퍼 클러치(300)가 결합된 감속직결제어에 진입된 상태이면 감속직결제어에 진입된 시간을 판정하여(S105) 설정된 일정시간이 경과하였는지 판단한다(S106)).The shift control unit 200 determines the time when the deceleration direct coupling control is entered in the deceleration direct coupling control in which the damper clutch 300 is engaged in S104 (S105), and determines whether a predetermined time has passed (S106 )).

상기 변속제어유닛(200)는 S106에서 감속직결제어에 진입된 시간이 설정된 일정시간 경과되었으면 엔진회전수가 연료재분사 회전수인지를 판단한다(S107).The shift control unit 200 determines whether the engine rotation speed is the fuel material injection rotation speed when the predetermined time has elapsed since the entry into the deceleration direct coupling control in step S106 (S107).

상기 변속제어유닛(200)은 S107에서 엔진회전수가 연료재분사 회전수가 아니면 CAN네트워크를 통해 엔진제어유닛(400)에 연료차단제어를 협조 요청한다.The shift control unit 200 requests the engine control unit 400 to cooperate with the fuel cut-off control via the CAN network if the engine speed is not the fuel material injection rotation speed in S107.

따라서, 엔진제어유닛(400)은 변속제어유닛(200)의 협조 제어 요청에 따라 연료분사장치(500)의 작동을 오프시켜 연료차단제어에 진입한다(S108).Accordingly, the engine control unit 400 turns off the operation of the fuel injection device 500 according to the cooperative control request of the shift control unit 200, and enters the fuel cutoff control (S108).

상기 변속제어유닛(200)은 상기 S106에서 연료차단제어에 진입되지 않았으나 감속직결제어에 진입된 시간이 설정된 일정시간을 경과하지 않았으면 엔진제어유닛(400)에 연료차단제어의 협조 제어를 요청하지 않고 현재의 연료분사를 그대로 유지한다(S109).The shift control unit 200 requests the engine control unit 400 to perform the cooperative control of the fuel cut-off control when the predetermined time has not elapsed since the entry into the deceleration direct coupling control at step S106 And the current fuel injection is maintained (S109).

또한, 상기 변속제어유닛(200)은 S107에서 엔진회전수가 연료 재분사 회전수의 조건이면 엔진제어유닛(400)에 연료차단제어의 협조 제어를 요청하지 않고 현재의 연료분사를 그대로 유지한다(S109).In step S107, the shift control unit 200 maintains the current fuel injection without requesting the engine control unit 400 to perform cooperative control of the fuel cutoff control if the engine speed is the fuel re-injection rotational speed condition (S109 ).

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 특허청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

100 : 운전정보검출부 200 : 변속제어유닛
300 : 댐퍼클러치 400 : 엔진제어유닛
500 : 연료분사장치100: Operation information detection unit 200: Shift control unit
300: damper clutch 400: engine control unit
500: fuel injection device

Claims (6)

차량 운행상태에서 엔진회전수, 주행차속, 가속페달 변위를 포함하는 운전정보를 검출하는 운전정보검출부;
상기 운전정보검출부에서 제공되는 주행 차속이 기준차속 이상이고, 리프트 풋 업에 따라 엔진회전수가 연료차단제어의 진입을 만족하나 연료차단제어에 진입되지 않은 상태이며, 댐퍼클러치가 결합된 감속직결제어에 진입되어 일정시간 이상 유지되면 엔진제어유닛에 연료차단제어를 협조 요청하는 변속제어유닛;
상기 변속제어유닛에의 협조 요청에 따라 연료분사장치의 작동을 오프시켜 연료차단제어를 실행하는 엔진제어유닛;
을 포함하는 무단변속기 차량의 총합 제어장치.An operation information detector for detecting operation information including engine speed, running vehicle speed, and accelerator pedal displacement in a running state of the vehicle;
Wherein the running vehicle speed provided by the running information detector is equal to or greater than a reference vehicle speed and the engine speed satisfies the entry of the fuel cutoff control according to the lift foot-up but does not enter the fuel cutoff control, A shift control unit for requesting the engine control unit to cooperate with the fuel cut-off control when it has entered and maintained for a predetermined time or longer;
An engine control unit for turning off the operation of the fuel injection device according to a request for cooperation with the shift control unit to execute fuel cutoff control;
And the total control device of the continuously variable transmission vehicle. 제1항에 있어서,
상기 운전정보검출부는 크랭크 축의 위상 변화 혹은 캠 축의 위상 변화로부터 엔진 회전수를 검출하는 엔진회전수검출부;
변속기의 출력축 회전수로부터 주행 차속을 검출하는 차속검출부;
운전자가 감가속을 위해 작동시키는 가속페달의 변위를 검출하는 가속페달검출부;
포함하는 무단변속기 차량의 총합 제어장치.The method according to claim 1,
Wherein the operation information detecting unit includes: an engine speed detecting unit that detects an engine speed from a phase change of a crankshaft or a phase change of a camshaft;
A vehicle speed detector for detecting a running vehicle speed from an output shaft revolution speed of the transmission;
An accelerator pedal detector for detecting a displacement of an accelerator pedal operated by a driver for deceleration;
And the total control device of the continuously variable transmission vehicle. 제1항에 있어서,
상기 변속제어유닛은 리프트 풋 업에 따라 엔진회전수가 연료차단제어 진입조건을 만족하는 상태에서 연료차단제어 미진입 상태로 감속직결제어에 진입되어 설정된 일정시간 유지되면 엔진제어유닛과 협조 제어하여 연료차단제어를 실행하는 무단변속기 차량의 총합 제어장치.The method according to claim 1,
The shift control unit enters the deceleration direct control state in a state in which the engine rotation speed satisfies the fuel cut-off control entry condition according to the lift foot-up and enters the deceleration direct control state in the fuel cut-off control non-entry state and cooperates with the engine control unit, Wherein the control unit executes the control of the continuously variable transmission. 제1항에 있어서,
상기 변속제어유닛은 감속직결제어에 진입된 시간이 일정시간 경과하지 않았거나 엔진회전수가 연료재분사 조건을 만족하면 엔진제어유닛에 연료차단제어 협조를 요청하지 않고 현재의 연료분사를 유지하는 무단변속기 차량의 총합 제어장치. The method according to claim 1,
Wherein the shift control unit is operable to control the engine control unit to stop the fuel cut-off control when the time for entering the deceleration direct coupling control does not elapse for a predetermined time or if the engine speed satisfies the fuel material injection condition, . 주행상태에서 엔진회전수, 주행차속, 가속페달의 변위를 포함하는 차량 운전정보를 검출하는 과정;
상기 운전정보에서 차속이 설정된 기준차속 이상이고 리프트 풋 업에 따라 연료차단제어에 진입되었는지 판단하는 과정;
상기 리프트 풋 업에 따라 연료차단제어에 진입되지 않았으면 댐퍼 클러치를 결합하는 감속직결제어에 진입되었는지 판단하는 과정;
상기 감속직결제어에 진입되었으면 진입된 경과시간이 설정된 시간을 경과하였으면 연료분사장치에 요청하여 연료차단제어를 실행하는 과정;
을 포함하는 무단변속기 차량의 총합 제어방법.Detecting vehicle driving information including an engine speed, a traveling vehicle speed, and a displacement of an accelerator pedal in a running state;
Determining whether the fuel cut-off control has been entered in accordance with the lift foot-up and the reference vehicle speed at which the vehicle speed is set in the operation information;
If it is determined that the fuel cut-off control has not been entered in accordance with the lift foot-up, whether or not the vehicle has entered the deceleration direct coupling control for coupling the damper clutch;
A step of requesting the fuel injector to execute the fuel cut-off control if the elapsed time has passed after the predetermined time has elapsed after entering the deceleration direct coupling control;
And the total control method of the continuously variable transmission vehicle. 제5항에 있어서,
상기 감속직결제어에 진입된 시간이 일정시간 경과하지 않았거나 엔진회전수가 연료재분사 조건을 만족하면 엔진제어유닛에 연료차단제어 협조를 요청하지 않고 현재의 연료분사를 유지하는 무단변속기 차량의 총합 제어방법.6. The method of claim 5,
A total control method of a continuously variable transmission vehicle in which the present fuel injection is maintained without requesting the engine control unit to cooperate with the fuel cut control when the time entered in the deceleration direct coupling control has not elapsed or when the engine speed satisfies the fuel material injection condition .
KR1020120144845A 2012-12-12 2012-12-12 Toral controlling system of continuously variable transmission on vehicle and method thereof KR101405220B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010105872A (en) * 2000-05-19 2001-11-29 이계안 Method for controlling fuel of auto transmission in vehicle
JP2005337024A (en) * 2004-05-24 2005-12-08 Nissan Motor Co Ltd Vehicular controlling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010105872A (en) * 2000-05-19 2001-11-29 이계안 Method for controlling fuel of auto transmission in vehicle
JP2005337024A (en) * 2004-05-24 2005-12-08 Nissan Motor Co Ltd Vehicular controlling device

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