KR20020049300A - Dash pot tailing control method - Google Patents

Dash pot tailing control method Download PDF

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Publication number
KR20020049300A
KR20020049300A KR1020000078431A KR20000078431A KR20020049300A KR 20020049300 A KR20020049300 A KR 20020049300A KR 1020000078431 A KR1020000078431 A KR 1020000078431A KR 20000078431 A KR20000078431 A KR 20000078431A KR 20020049300 A KR20020049300 A KR 20020049300A
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South Korea
Prior art keywords
engine
idle
pdp
tailing
control
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KR1020000078431A
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Korean (ko)
Inventor
고성석
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이계안
현대자동차주식회사
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Priority to KR1020000078431A priority Critical patent/KR20020049300A/en
Publication of KR20020049300A publication Critical patent/KR20020049300A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps

Abstract

PURPOSE: A method for controlling a dash port tailing is provided to prevent delay in dropping of an engine RPM(Revolution Per Minute) by changing the engine RPM and to improve safety of an engine. CONSTITUTION: System for controlling a dash port tailing comprises a throttle position sensor(1) detecting opening degree of a throttle valve connected to an acceleration pedal; an engine RPM sensor(3) detecting the RPM of an engine; an ECU(Electronic Control Unit) receiving the engine RPM by being connected to the engine RPM sensor; and an idle speed control servo supplying air into the engine by being engaged with an output of the ECU. The engine RPM sensor is connected to an input side of the ECU. The idle speed control servo receives an output signal of the ECU to control supply of air into the engine while idling. Thereby, the system for controlling the dash port tailing prevents delay in dropping of the engine RPM by changing the engine RPM to improve safety of the engine.

Description

대시포트 테일링 제어방법{DASH POT TAILING CONTROL METHOD}Dash POT TAILING CONTROL METHOD}

본 발명은 대시포트 테일링 제어방법에 관한 것으로서, 보다 상세하게는 엔진의 RPM이 초기에 신속히 떨어지다가 목표치 근처에서 완만히 떨어지게 하여 엔진 RPM의 저하 지연을 해결하고 엔진의 안정성을 향상시키는 대시포트 테일링 제어방법에 관한 것이다.The present invention relates to a dashpot tailing control method, and more particularly, a dashpot tailing control method for resolving the engine RPM drop delay and improving the engine stability by dropping the engine RPM rapidly initially and slowly falling near the target value. It is about.

일반적으로 대시포트는 엔진 스로틀 밸브가 열린 상태(파트 로드)를 유지하다가 닫힐 경우(아이들 상태) 엔진 출력의 급격한 감소에 의한 쇽크를 완화시킬 수있도록 구성된다.In general, the dashport is configured to mitigate the shank caused by a sharp decrease in engine output when the engine throttle valve is kept open (part load) and closed (idle state).

이를 위하여 대시포트는, 스로틀 밸브가 열려있을 때, 미리 소정량의 공기를 아이들 기본 공기량에 더하여 아이들 스피드 컨트롤 서보를 더 열어서 아이들 진입시 추가된 공기량을 점진적으로 감소시켜 없어지게 한다.To this end, the dashpot, when the throttle valve is open, adds a predetermined amount of air to the idle basic air amount in advance to further open the idle speed control servo to gradually reduce the amount of air added upon entering the idle.

이 때 대시포트의 테일링 제어방법은 도 1에 도시된 바와 같이 이루어진다.At this time, the tailing control method of the dash port is made as shown in FIG.

엔진 RPM이 1보다 크고(st1), 아이들이 아닌 지를(st2) 판단한다.It is determined whether the engine RPM is greater than 1 (st1) and not idle (st2).

아이들이 아닌 경우 Pdt(t)=max{Pdp(스로틀 개도), Pdp(t-1)}로 제어하고(st3), 아이들인 경우 Pdt(t)=0로 제어 로직을 종료한다(st8).If not idle, control is performed with Pdt (t) = max {Pdp (throttle opening degree), Pdp (t-1)} (st3), and if idle, control logic is terminated with Pdt (t) = 0 (st8).

여기서 Pdp(t)는 스피드 컨트롤 서보의 후퇴 조건 성립 후의 대시포트 포지션이고, Pdp(t-1)은 스피드 컨트롤 서보의 후퇴 조건 성립 직전의 대시포트 포지션이며, Pdp(스로틀 개도)는 현재 스로틀 개도에서의 대시포트 데이터이다. 이들은 이하에서 동일한 의미를 가진다.Where Pdp (t) is the dash position after the retraction condition of the speed control servo is established, Pdp (t-1) is the dash position before the retraction condition of the speed control servo is established, and Pdp (throttle opening degree) is Dashport data. These have the same meaning below.

Pdp(t)에 의하여 아이들인지를 판단한다(st4).It is determined whether the children are children by Pdp (t) (st4).

아이들이 아닌 경우 Pdp(t)로 제어하고(st3), 아이들인 경우 Pdp(t)=0으로 1차 테일링 제어한다(st5).If not, control is performed with Pdp (t) (st3), and if it is idle, primary tailing control is controlled with Pdp (t) = 0 (st5).

그리고 Pdp(t)에 의하여 아이들이 아닌지를 판단한다(st6)It is then determined whether or not the children are determined by Pdp (t) (st6).

아이들인 경우 다시 Pdp(t)=0으로 1차 테일링 제어하고(st5), 아이들이 아닌 경우 엔진이 정지되었는지를 판단한다(st7).In the case of the idle, the first tailing control is again performed with Pdp (t) = 0 (st5), and if it is not the idle, it is determined whether the engine is stopped (st7).

엔진이 정지되지 않은 경우 다시 Pdp(t)로 제어하고(st3), 엔진이 정지된 경우 Pdp(t)=0으로 제어 로직을 종료한다(st8).If the engine is not stopped, control is again performed with Pdp (t) (st3). If the engine is stopped, control logic is terminated with Pdp (t) = 0 (st8).

상기와 같은 제어 로직에 의하여 대시포트의 공기량은 도 3에 도시된 바와 같이 제어된다.By the control logic as described above, the air amount of the dashpot is controlled as shown in FIG. 3.

즉, 대시포트의 공기량은 아이들 상태 진입과 동시에 대시포트 테일링을 시작하여 선형 1차 테일링 제어된다.That is, the amount of air in the dashpot is controlled by linear primary tailing by starting dashpot tailing at the same time as the idle state is entered.

상기와 같은 대시포트 테일링 제어방법은 대시포트 공기량 감소의 기울기를 1차 테일링으로 설정하기 때문에 무부하 주행 후 RPM 저하가 지연되고 엔진의 안정성을 저해하는 문제점이 있다.Since the dashpot tailing control method as described above sets the slope of the dashpot air amount reduction to the first tailing, there is a problem of delaying RPM deterioration after no-load driving and hampering engine stability.

따라서 본 발명은 상기와 같은 문제점을 해소하기 위하여 발명된 것으로서, 본 발명의 목적은 엔진의 RPM을 초기에 신속히 떨어뜨리다가 목표치 근처에서 완만히 떨어뜨려 엔진 RPM의 저하 지연을 해결하고 엔진의 안정성을 향상시키는 대시포트 테일링 제어방법을 제공한다.Therefore, the present invention has been invented to solve the above problems, the object of the present invention is to quickly drop the engine RPM early drops slowly near the target value to solve the delay of engine RPM degradation and improve the stability of the engine It provides a way to control dashtail tailing.

도 1은 종래기술에 따른 대시포트 테일링 제어방법의 순서도이다.1 is a flow chart of a dash tailing control method according to the prior art.

도 2는 종래기술에 따른 대시포트 테일링 제어방법의 효과를 도시한 그래프이다.Figure 2 is a graph showing the effect of the dashboard tailing control method according to the prior art.

도 3은 대시포트 테일링 제어 시스템의 블럭도이다.3 is a block diagram of a dash tailing control system.

도 4는 본 발명에 따른 대시포트 테일링 제어방법의 순서도이다.Figure 4 is a flow chart of a dash tailing control method according to the present invention.

도 5는 종래기술에 따른 대시포트 테일링 제어방법의 효과를 도시한 그래프이다.Figure 5 is a graph showing the effect of the dashboard tailing control method according to the prior art.

이를 실현하기 위하여 본 발명에 따른 대시포트 테일링 제어방법은,In order to realize this, the dashboard tailing control method according to the present invention,

엔진 RPM이 1보다 크고(ST1), 아이들이 아닌 지를(ST2) 판단하는 단계;Determining whether the engine RPM is greater than 1 (ST1) and not idle (ST2);

상기 단계의 판단이 아이들이 아닌 경우 Pdt(t)=max{Pdp(스로틀 개도), Pdp(t-1)}로 제어하는(ST3) 단계;If the determination of the step is not idle, controlling by Pdt (t) = max {Pdp (throttle opening degree), Pdp (t-1)} (ST3);

상기 단계의 Pdp(t)에 의하여 아이들인지를 판단하는(ST4) 단계;Determining whether children are idle by using the step Pdp (t) (ST4);

상기 단계의 판단이 아이들이 아닌 경우 Pdp(t)로 제어하고(ST3), 아이들인 경우 Pdp(t)=아이들 베이스 공기량 + β(WT)를 기준으로 0으로 2차 테일링 제어하는(ST5) 단계;If the determination of the step is not idle, control with Pdp (t) (ST3), and if idle, control second tailing to zero based on Pdp (t) = idle base air volume + β (WT) (ST5) ;

상기 단계의 Pdp(t)에 의하여 아이들이 아닌지를 판단하는(ST6) 단계;Determining whether or not children are idle by the step Pdp (t) (ST6);

상기 단계의 판단이 아이들인 경우 다시 Pdp(t)=아이들 베이스 공기량 + β(WT)를 기준으로 0으로 2차 테일링 제어하고(ST5), 아이들이 아닌 경우 엔진이 정지되었는지를 판단(ST7)하는 단계;When the determination of the step is idle, the second tailing control is zero again based on Pdp (t) = idle base air volume + β (WT) (ST5), and when it is not idle, it is determined whether the engine is stopped (ST7). step;

상기 단계의 판단이 엔진이 정지되지 않은 경우 다시 Pdp(t)로 제어하고(ST3), 엔진이 정지된 경우 Pdp(t)=0으로 제어 로직을 종료하는(ST8) 단계;If the determination of the step is not stopped, the control is again performed by Pdp (t) (ST3), and when the engine is stopped, control logic is terminated by Pdp (t) = 0 (ST8);

를 포함한다.It includes.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의하여 보다 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

도 3은 대시포트 테일링 제어 시스템의 구성도로서, 스로틀 포지션 센서(1)와 엔진 RPM 센서(3)는 전자제어유닛(ECU)의 입력 측에, 그리고 아이들 스피드 컨트롤 서보(5)는 출력 측에, 각각 연결된다.3 is a configuration diagram of the dashpot tailing control system, in which the throttle position sensor 1 and the engine RPM sensor 3 are on the input side of the electronic control unit (ECU), and the idle speed control servo 5 is on the output side. , Respectively.

스로틀 포지션 센서(1)는 가속 페달(미도시)에 연결된 스로틀 밸브(미도시)의 개도 상태에 따라 이를 감지하여, 엔진 RPM 센서(3)는 엔진의 회전수를 감지하여, 전자제어유닛(ECU)에 각각의 신호를 입력한다. 아이들 스피드 컨트롤 서보(5)는 아이들 시 엔진에 공기를 공급하는 제어가 가능하도록 전자제어유닛(ECU)의 출력 신호를 받는다.The throttle position sensor 1 detects this according to the opening state of a throttle valve (not shown) connected to an accelerator pedal (not shown), and the engine RPM sensor 3 detects the rotational speed of the engine, and the electronic control unit ECU Input each signal to). The idle speed control servo 5 receives an output signal from the ECU to enable control of supplying air to the engine during idling.

상기와 같이 구성되는 대시포트 테일링 제어 시스템의 제어방법은 도 4에 도시된 바와 같다.The control method of the dashboard tailing control system configured as described above is as shown in FIG.

엔진 RPM 센서(3)의 신호에 따라 엔진 RPM이 1보다 큰지를 판단한다(ST1).It is determined whether the engine RPM is greater than 1 according to the signal of the engine RPM sensor 3 (ST1).

엔진 RPM이 1보다 크지 않으면 Pdp(t)=0로 제어 로직을 종료하고, 엔진 RPM이 1보다 크면 아이들이 아닌 지를(ST2) 판단한다.If the engine RPM is not greater than 1, the control logic is terminated with Pdp (t) = 0, and if the engine RPM is greater than 1, it is determined whether or not it is idle (ST2).

이때 스로틀 포지션 센서(1)의 출력 값이 일정 값보다 작거나 아이들 스위치(미도시)가 온이 되었을 때 아이들로 판정한다.At this time, when the output value of the throttle position sensor 1 is smaller than a predetermined value or when the idle switch (not shown) is turned on, it is determined as idle.

상기 판단이 아이들인 경우 Pdp(t)=0로 제어 로직을 종료하고, 아이들이 아닌 경우 Pdt(t)=max{Pdp(스로틀 개도), Pdp(t-1)}로 제어한다(ST3).If the determination is idle, the control logic is terminated with Pdp (t) = 0, and if not, control is performed with Pdt (t) = max {Pdp (throttle opening degree), Pdp (t-1)} (ST3).

상기 단계의 Pdp(t)에 의하여 아이들인지를 판단한다(ST4).It is determined whether the children are idle by Pdp (t) in the step (ST4).

상기 판단이 아이들이 아닌 경우 Pdp(t)로 제어하고(ST3), 아이들인 경우 Pdp(t)=아이들 베이스 공기량 + β(WT)를 기준으로 0으로 2차 테일링 제어한다(ST5).If the determination is not idle, the control is controlled by Pdp (t) (ST3), and in the case of idle, the second tailing control is zero based on Pdp (t) = idle base air volume + β (WT) (ST5).

상기 단계의 Pdp(t)에 의하여 아이들이 아닌지를 판단한다(ST6).It is judged whether or not the children are determined by Pdp (t) in the step (ST6).

상기 판단이 아이들인 경우 다시 Pdp(t)=아이들 베이스 공기량 + β(WT)를 기준으로 0으로 2차 테일링 제어하고(ST5), 아이들이 아닌 경우 엔진이 정지되었는지를 판단한다(ST7).If the determination is idle, the second tailing control is zero again based on Pdp (t) = idle base air volume + β (WT) (ST5), and if it is not idle, it is determined whether the engine is stopped (ST7).

상기 판단이 엔진이 정지되지 않은 경우 다시 Pdp(t)로 제어하고(ST3), 엔진이 정지된 경우 Pdp(t)=0으로 제어 로직을 종료한다(ST8).If the judgment is that the engine is not stopped, control is again made with Pdp (t) (ST3). If the engine is stopped, control logic is terminated with Pdp (t) = 0 (ST8).

상기와 같은 제어 로직에 의하여 대시포트의 공기량은 도 5에 도시된 바와 같이 제어된다.The air volume of the dash port is controlled as shown in FIG. 5 by the control logic as described above.

즉, 대시포트의 공기량은 아이들 상태 진입과 동시에 대시포트 테일링을 시작하고, 엔진 RPM이 목표치에 접근할 경우 선형 2차 테일링 제어된다.That is, the amount of air in the dashpot starts dashpot tailing as soon as the idle state is entered, and the linear secondary tailing control is performed when the engine RPM approaches the target value.

본 실시예의 대시포트 테일링 제어방법은 초기 테일링 제어를 신속하게 하고, 2차 테일링 제어를 완만하게 한다.The dashpot tailing control method of this embodiment speeds up the initial tailing control and smoothes the secondary tailing control.

상술한 바와 같이 본 발명에 따른 대시포트 테일링 제어방법은 Pdp(t)=아이들 베이스 공기량 + β(WT)를 기준으로 0으로 2차 테일링 제어하므로 엔진의 RPM을 초기에 신속히 떨어뜨리다가 목표치 근처에서 완만히 떨어뜨릴 수 있다.As described above, the dashpot tailing control method according to the present invention controls the secondary tailing to 0 based on Pdp (t) = idle base air volume + β (WT), so that the engine RPM is rapidly dropped initially and near the target value. You can drop it gently.

따라서 본 발명의 대시포트 테일링 제어방법은 엔진 RPM의 저하 지연을 해결하고 엔진의 안정성을 향상시킬 수 있다.Therefore, the dashpot tailing control method of the present invention can solve the delay delay of the engine RPM and improve the stability of the engine.

Claims (1)

엔진 RPM이 1보다 크고(ST1), 아이들이 아닌 지를(ST2) 판단하는 단계;Determining whether the engine RPM is greater than 1 (ST1) and not idle (ST2); 상기 단계의 판단이 아이들이 아닌 경우 Pdt(t)=max{Pdp(스로틀 개도), Pdp(t-1)}로 제어하는(ST3) 단계;If the determination of the step is not idle, controlling by Pdt (t) = max {Pdp (throttle opening degree), Pdp (t-1)} (ST3); 상기 단계의 Pdp(t)에 의하여 아이들인지를 판단하는(ST4) 단계;Determining whether children are idle by using the step Pdp (t) (ST4); 상기 단계의 판단이 아이들이 아닌 경우 Pdp(t)로 제어하고(ST3), 아이들인 경우 Pdp(t)=아이들 베이스 공기량 + β(WT)를 기준으로 0으로 2차 테일링 제어하는(ST5) 단계;If the determination of the step is not idle, control with Pdp (t) (ST3), and if idle, control second tailing to zero based on Pdp (t) = idle base air volume + β (WT) (ST5) ; 상기 단계의 Pdp(t)에 의하여 아이들이 아닌지를 판단하는(ST6) 단계;Determining whether or not children are idle by the step Pdp (t) (ST6); 상기 단계의 판단이 아이들인 경우 다시 Pdp(t)=아이들 베이스 공기량 + β(WT)를 기준으로 0으로 2차 테일링 제어하고(ST5), 아이들이 아닌 경우 엔진이 정지되었는지를 판단(ST7)하는 단계;When the determination of the step is idle, the second tailing control is zero again based on Pdp (t) = idle base air volume + β (WT) (ST5), and when it is not idle, it is determined whether the engine is stopped (ST7). step; 상기 단계의 판단이 엔진이 정지되지 않은 경우 다시 Pdp(t)로 제어하고(ST3), 엔진이 정지된 경우 Pdp(t)=0으로 제어 로직을 종료하는(ST8) 단계;If the determination of the step is not stopped, the control is again performed by Pdp (t) (ST3), and when the engine is stopped, control logic is terminated by Pdp (t) = 0 (ST8); 를 포함하는 대시포트 테일링 제어방법.Dashboard tailing control method comprising a.
KR1020000078431A 2000-12-19 2000-12-19 Dash pot tailing control method KR20020049300A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100412666B1 (en) * 2001-07-30 2003-12-31 현대자동차주식회사 Automobile idling control system and method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01280929A (en) * 1988-05-07 1989-11-13 Sanyo Electric Co Ltd Added information receiver
JPH0611646A (en) * 1993-03-24 1994-01-21 Nikon Corp Automatic focusing light device
JPH06125935A (en) * 1992-10-21 1994-05-10 Kao Corp Surface material of absorptive article and manufacture thereof
KR970044712A (en) * 1995-12-29 1997-07-26 전성원 How to control dash port
KR970070490A (en) * 1996-04-04 1997-11-07 김영귀 How to prevent the rotation speed of car engine from falling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01280929A (en) * 1988-05-07 1989-11-13 Sanyo Electric Co Ltd Added information receiver
JPH06125935A (en) * 1992-10-21 1994-05-10 Kao Corp Surface material of absorptive article and manufacture thereof
JPH0611646A (en) * 1993-03-24 1994-01-21 Nikon Corp Automatic focusing light device
KR970044712A (en) * 1995-12-29 1997-07-26 전성원 How to control dash port
KR970070490A (en) * 1996-04-04 1997-11-07 김영귀 How to prevent the rotation speed of car engine from falling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100412666B1 (en) * 2001-07-30 2003-12-31 현대자동차주식회사 Automobile idling control system and method thereof

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