KR100195495B1 - Reset threshold time control method of study counter in ecu - Google Patents

Reset threshold time control method of study counter in ecu Download PDF

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Publication number
KR100195495B1
KR100195495B1 KR1019960063206A KR19960063206A KR100195495B1 KR 100195495 B1 KR100195495 B1 KR 100195495B1 KR 1019960063206 A KR1019960063206 A KR 1019960063206A KR 19960063206 A KR19960063206 A KR 19960063206A KR 100195495 B1 KR100195495 B1 KR 100195495B1
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South Korea
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checking
threshold time
reset threshold
learning counter
learning
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KR1019960063206A
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Korean (ko)
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KR19980045049A (en
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정훈
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류정열
기아자동차주식회사
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    • 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
    • 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir
    • F02D41/0032—Controlling the purging of the canister as a function of the engine operating conditions
    • F02D41/004—Control of the valve or purge actuator, e.g. duty cycle, closed loop control of position
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0223—Cooling water temperature
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0225—Intake air or mixture temperature
    • 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
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

본 발명은 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법에 대한 것이다. 더욱 상세하게는 전자제어엔진의 작동을 제어하는 전자제어유니트(컴퓨터)에 적용되고 있는 학습카운터에 정해진 강제리셋 드레숄드시간을 일정시간 지연시켜 배기가스 시스템의 작용효율을 향상할 수 있고록 한 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법에 관한 것이다.The present invention relates to a learning counter forced reset threshold time control method of an electronic control engine for automobiles. More specifically, it is possible to improve the working efficiency of the exhaust gas system by delaying the forced reset threshold time set in the learning counter applied to the electronic control unit (computer) that controls the operation of the electronic control engine for a certain time. The present invention relates to a forced counter threshold time control method for an electronic control engine.

본 발명에서는 학습카운터에 설정되는 강제리셋 드레숄드시간을 기존보다 약 100초 정도 더 연장하여 배기가스 시스템에 좋은 영향이 미치도록 함으로써 배기가스의 저감효과를 크게 향상시키는 효과를 제공한다.According to the present invention, the forced reset threshold time set in the learning counter is extended by about 100 seconds more than before, so that the exhaust gas system has a good effect, thereby greatly improving the effect of reducing the exhaust gas.

Description

자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법Learning Counter Force Reset Threshold Time Control Method of Electronic Control Engine for Automobile

본 발명은 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법에 대한 것이다. 더욱 상세하게는 전자제어엔진의 작동을 제어하는 전자제어유니트(컴퓨터)에 적용되고 있는 학습카운터에 정해진 강제리셋 드레숄드시간을 일정시간 지연시켜 배기가스 시스템의 작용효율을 향상할 수 있고록 한 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법에 관한 것이다.The present invention relates to a learning counter forced reset threshold time control method of an electronic control engine for automobiles. More specifically, it is possible to improve the working efficiency of the exhaust gas system by delaying the forced reset threshold time set in the learning counter applied to the electronic control unit (computer) that controls the operation of the electronic control engine for a certain time. The present invention relates to a forced counter threshold time control method for an electronic control engine.

일반적으로 자동차의 주요 부분들은 거의 전자화되어 있으며, 엔진의 경우에있어서도 전자제어방식의 엔진이 주류를 형성하고 있다. 이중에서도 가장 중요시 되는 분야가 엔진의 전자제어 연료분사장치라 말할 수 있다. 이 전자제어 연료분사장치에서는 엔진에서 필요로 하는 연료의 양에 영향을 주는 모든 요소를 포함하고 있어 엔진 상태의 변화를 각 부분에 설치되어 있는 센서를 통하여 받아들여 제어유니트(ECU)에서 그 상태에 필요한 연료의 양을 결정하여 인젝터에서 연료 분사밸브에 그 양을 분사하기 위한 신호를 보내어 자동차의 운전조건에 가장 적합한 분사량만을 정확히 분사하도록 함으로써 공연비의 향상,엔진의 효율 향상 및 주행성능의 향상, 유해 배출가스의 감소를 향상시켜 주는 중요한 역할을 수행하게 된다.In general, the major parts of automobiles are almost electronic, and in the case of engines, electronically controlled engines are the mainstream. Among them, the most important field is the electronically controlled fuel injection device of the engine. This electronically controlled fuel injection device includes all the factors that affect the amount of fuel required by the engine. The change of engine status is received through the sensors installed in each part, and the control unit (ECU) changes the state. By determining the amount of fuel required, the injector sends a signal to the fuel injection valve to inject the amount to precisely inject only the injection amount most suitable for the driving conditions of the vehicle, thereby improving the air-fuel ratio, improving the efficiency of the engine and improving driving performance, It will play an important role in improving emissions reduction.

즉, 종래에는 도 1,의 제어 흐름도에서 예시하는 바와 같이 엔진시동이 걸리면 제어유니트(ECU)에서는 냉각수온센서을 통해서 냉각수의 온도가 적정기준온도(약80℃)를 유지하고 있는지를 비교 판단하게 되고, 이어서 흡기온 센서(TPS)를 통해서 엔진으로 흡입되는 공기의 온도변화를 측정하게 되고. 또한 피드백 영역인가를 확인하게 된다. 그리고 시동시의 연료증량이 없는지를 파악함과 동시에 난기후의 증량보정상태 및 퍼지컨트롤밸브(Purge Control Valve)가 정지중인가를 확인하고, 이어서 연료압력조절기가 작동중인가를 확인하며, 에어콘스위치,파워스티어링스위치,각 전기부하의 온(ON),오프(OFF) 상태를 점검하게 된다. 그리고 기어의 현위치 및 움직임 상태를 확인하고, 최종으로 학습카운터(CLRNEXE)의 제로(Zero)상태를 확인한 다음 제로상태가 아니면 정해진 300초간을 지속한 후 퍼지를 개시(퍼지 컨트롤 밸브 동작)하게 되는 일련의 제어 과정이 이루어지게 된다.That is, in the related art, when the engine is started as illustrated in the control flowchart of FIG. 1, the control unit (ECU) compares and determines whether the temperature of the coolant maintains the proper reference temperature (about 80 ° C) through the coolant temperature sensor. Then, the temperature change of the air drawn into the engine through the intake air temperature sensor (TPS) is measured. In addition, it is confirmed that the feedback area. After checking whether there is no fuel increase at start-up, check the increase in post-warm temperature and whether the purge control valve is stopped, and then check whether the fuel pressure regulator is in operation. Check the power steering switch and the ON and OFF status of each electric load. After checking the current position and movement state of the gear, and finally checking the zero state of the CLRNEXE, if it is not zero, the purge is started (purge control valve operation) for 300 seconds. A series of control procedures will take place.

그러나 상기와 같은 연료분사의 제어방식에 적용되는 학습치(Learning Correction Value) 충분,필요 조건은 상기와 같이 모든 조건이 만족되었을 경우에 학습카운터가 작동을 하게 되고, 이때 학습카운터에 설정된 강제리셋 드레숄드시간이 300초 정도로 짧게 정해져 있어 퍼지(Purge)가 일찍 개시되는 관계로 배기가스에 악영향을 미치게 되는 연료분사제어상의 문제점이 있었다.However, the learning counter is operated when the learning correction value applied to the control method of fuel injection as described above is sufficient and the necessary conditions are met. Since the shoulder time is set as short as about 300 seconds, there is a problem in fuel injection control that adversely affects the exhaust gas because the purge is started early.

이에, 본 발명에서는 학습카운터에 설정되는 강제리셋 드레숄드시간을 기존보다 약 100초 정도 더 연장하여 배기가스 시스템에 좋은 영향이 미치도록 함으로써 배기가스의 저감효과를 얻을 수 있도록 함에 그 목적이 있는 것이다.Therefore, the present invention is to extend the forced reset threshold time set in the learning counter by about 100 seconds longer than before to have a good effect on the exhaust gas system to obtain an exhaust gas reduction effect. .

도 1은 종래 전자제어엔진에 있어서, 학습카운터 강제리셋 드레숄드 시간제 어방법을 도시한 흐름도.1 is a flowchart illustrating a learning counter forced reset threshold time control method in a conventional electronic control engine.

도 2는 본 발명의 전자제어엔진에 적용된 학습카운터 강제리셋 드레숄드 시 간제어방법을 도시한 흐름도.2 is a flowchart illustrating a learning counter forced reset threshold time control method applied to an electronic control engine of the present invention.

도 3은 본 발명에 의한 공연비 피드백 보정관계를 나타낸 예시도.3 is an exemplary view showing an air-fuel ratio feedback correction relationship according to the present invention.

(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

FAF : 평균 공기 대 연료의 비율FAF: Average Air to Fuel Ratio

상기와 같은 목적을 달성하기 위한 본 발명의 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법은 다음과 같은 특징을 제공한다.The learning counter forced reset threshold time control method of the electronic control engine for a vehicle of the present invention for achieving the above object provides the following features.

엔진시동후 냉각수 온도의 적정(약80℃)여부를 비교 판단하는 단계와, 엔진으로 흡입되는 공기의 온도변화를 측정하는 단계와, 피드백 영역인가를 확인하는 단계와, 시동시의 연료증량이 없는지를 확인하는 단계와, 난기후의 증량보정이 없는지를 확인하는 단계와, 퍼지컨트롤밸브(Purge Control Valve)의 동작이 정지중인가를 확인하는 단계와, 연료압력조절기의 작동여부를 확인하는 단계와, 에어콘스위치,파워스티어링스위치 및 각 전기부하의 온(ON),오프(OFF) 상태를 점검하는 단계와, 기어의 현위치 및 움직임 상태를 확인하는 단계와, 최종으로 학습카운터(CLRNEXE)의 제로(Zero)상태를 확인하는 단계를 거쳐 퍼지컨트롤밸브의 작동제어가 이루어지도록 한 제어유니트(ECU)의 학습카운터 강제리셋 드레숄드 시간제어방법에 있어서,Comparing and determining whether the coolant temperature is appropriate (approx. 80 ° C.) after starting the engine, measuring the temperature change of the air sucked into the engine, checking whether the feedback area is present, and whether there is no increase in fuel at startup. Checking the step, Checking whether there is no increase in post-warming, Checking whether the operation of the purge control valve (Purge Control Valve) is stopped, Checking the operation of the fuel pressure regulator and , Checking the on / off status of the air conditioner switch, the power steering switch and each electric load, checking the current position and movement state of the gear, and finally zero the learning counter (CLRNEXE). In the learning counter forced reset threshold time control method of the control unit (ECU) to perform the operation control of the purge control valve through the step of checking the (Zero) state,

상기 학습카운터(CLRNEXE)의 제로(Zero)상태를 확인하는 단계를 거친 후, 학습보정값이 제로상태가 아니면 학습카운터의 강제리셋 드레숄드시간을 400초간 지속시키는 단계; 그리고,After the step of checking the zero state of the learning counter CLRNEXE, if the learning correction value is not zero, continuing the forced reset threshold time of the learning counter for 400 seconds; And,

상기 학습카운터의 강제리셋 드레숄드시간(400초)이 제로(0)상태인지를 확인하여 퍼지컨트롤밸브의 작동을 개시하는 단계;Confirming whether the forced reset threshold time (400 seconds) of the learning counter is in a zero state and initiating operation of the purge control valve;

를 포함하는 것을 특징으로 한다 .Characterized in that it comprises a.

따라서, 본 발명에 의하면 학습카운터에 설정되는 강제리셋 드레숄드시간이 기존보다 약 100초 정도 더 연장되어 적용되기 때문에 배기가스 시스템에 좋은 영향을 미쳐 배기가스의 저감효과를 얻을 수 있게 되는 것이다.Therefore, according to the present invention, since the forced reset threshold time set in the learning counter is extended by about 100 seconds longer than before, the exhaust gas system has a good effect and thus the exhaust gas reduction effect can be obtained.

(실시예)(Example)

이하, 본 발명을 첨부된 비한정의 예시도면을 통해 보다 구체적으로 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the attached non-limiting exemplary drawings.

도 2는 본 발명의 전자제어엔진에 적용된 학습카운터 강제리셋 드레숄드 시간제어방법을 도시한 흐름도이고, 도 3은 본 발명에 의한 공연비 피드백 보정(공연비 학습보정)관계를 나타낸 예시도이다.2 is a flowchart illustrating a learning counter forced reset threshold time control method applied to an electronic control engine of the present invention, and FIG. 3 is an exemplary view illustrating an air-fuel ratio feedback correction (performance ratio learning correction) relationship according to the present invention.

도시한 바와 같이, 본 발명의 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법은 기존의 공연비 학습보정을 실시하는 경우와 마찬가지로 분사량 보정을 위한 여러 가지 보정조건을 확인함과 동시에 학습카운터(CLRNEXE)의 제로(Zero)상태를 확인하는 단계를 거친 후, 학습보정값이 제로상태가 아니면 학습카운터의 강제리셋 드레숄드시간을 기존의 300초에서 100초를 연장한 400초간을 지속시키는 단계를 수행하도록 하고, 그리고 상기 학습카운터의 강제리셋 드레숄드시간(400초)이 제로(0)상태인지를 확인하여 퍼지컨트롤밸브의 작동을 개시하는 단계를 실현토록 함으로써, 배기가스의 저감효과를 크게 높일 수 있게 되는 것이다.As shown, the learning counter forced reset threshold time control method of the electronic control engine for automobile according to the present invention checks the various correction conditions for the injection quantity correction and the learning counter at the same time as in the case of performing the conventional air-fuel ratio learning correction. After checking CLRNEXE's zero state, if the learning correction value is not zero, the forced reset threshold time of the learning counter is extended for 400 seconds, extending from 300 seconds to 100 seconds. And the step of checking whether the forced reset threshold time (400 seconds) of the learning counter is zero (0) to realize the step of starting the operation of the purge control valve, thereby greatly reducing the effect of reducing the exhaust gas. You can increase it.

즉, 엔진시동후 제어유니트(ECU)에서는 수온센서를 통해서 냉각수 온도의 적정(약80℃)여부를 비교 판단하여 증량보정을 실시할 조건을 확인한다.(이는 엔진이 차가와진 상태에서 시동할 경우 가솔린의 기체화가 좋지 않아 혼합기의 공연비가 희박해지므로 냉각수 온도가 소정값이 될 때까지 증량보정을 계속 실시해야 한다). 또한 엔진으로 흡입되는 공기의 온도변화를 측정한다.(그 이유는 흡입공기의 온도에 따라 흡입공기의 밀도에 차이가 생기는데 이 공연비의 어긋남을 보정할 필요가 있다) 또한 공연비 피드백 영역인가를 확인한다.(그 이유는 산소센서는 산소 분압이 높은 배기가스중에서는 낮은 전압을 발생하고 산소분압이 낮은 배기가스중에서는 높은 전압을 출력한다. 이 전압값을 일정한 기준값과 비교하여 혼합기가 이론공연비보다 희박한가 농후한가를 판별하여 희박할 때는 일정한 비율로 증량보정을 농후할 때는 감량보정을 한다) 또한 시동시의 연료증량이 없는지(= 0)를 확인한다. 또한 난기후의 증량보정이 없는지(= 0)를 확인한다. 또한 퍼지컨트롤밸브(Purge Control Valve)의 동작이 정지중인가를 확인한다. 또한 연료압력조절기의 작동여부를 확인한다. 또한 에어콘스위치,파워스티어링스위치 및 각 전기부하의 온(ON),오프(OFF) 상태를 점검 확인한다. 또한 기어의 현위치가 중립인지 주행인지 또는 움직이고 있는 상태인지를 확인한다. 그리고 최종으로 학습카운터(CLRNEXE)의 제로(Zero)상태를 확인하게 되는데 이때 학습보정값(Learning Correction Value)이 제로(0)상태가 아니면 제로(0)상태가 될 때까지 학습카운터의 강제리셋 드레숄드시간을 기존의 300초에서 100초를 더 연장시켜 400초간을 지속시킨다. 그래서 학습카운터의 값이 제로(0)가 되는 충분한 시간이 지난 다음에 퍼지컨트롤밸브의 동작이 개시되므로 배기가스 관련 시스템에 좋은 영향을 미치게 되는 것이다.In other words, after the engine is started, the control unit (ECU) compares and judges whether the cooling water temperature is appropriate (approximately 80 ° C) through the water temperature sensor, and confirms the conditions to perform the increase correction. In this case, the gasification of gasoline is not good, and the air-fuel ratio of the mixer becomes thinner. In addition, the temperature change of the air drawn into the engine is measured. (The reason is that the density of the intake air varies depending on the temperature of the intake air. It is necessary to correct the deviation of the air-fuel ratio.) (The reason is that the oxygen sensor produces a low voltage in the exhaust gas with a high oxygen partial pressure and a high voltage in the exhaust gas with a low oxygen partial pressure. When the rich limit is determined, if it is lean, the weight loss correction is performed at a certain rate. The weight loss correction is also performed. Also check that there is no increase correction after warming (= 0). Also check if the operation of the purge control valve is stopped. Also check the operation of the fuel pressure regulator. Also check the ON and OFF status of air conditioner switch, power steering switch and each electric load. Also check whether the current position of the gear is neutral, driving or moving. Finally, the zero state of CLRNEXE is checked. At this time, if the Learning Correction Value is not zero, the forced reset dr of the learning counter is zero. Extends the shoulder time to 100 seconds from 300 seconds and lasts 400 seconds. Therefore, the operation of the purge control valve starts after a sufficient time that the value of the learning counter becomes zero (0) has a good effect on the exhaust gas-related system.

이와 같이, 본 발명에 의하면 학습카운터에 설정되는 강제리셋 드레숄드시간을 기존보다 약 100초 정도 더 연장하여 배기가스 시스템에 좋은 영향이 미치도록 함으로써 배기가스의 저감효과를 얻을 수 있게 되는 것이다.As described above, according to the present invention, the forced reset threshold time set in the learning counter is extended by about 100 seconds more than before, so that the exhaust gas system has a good effect, thereby reducing the exhaust gas.

이상에서 설명한 것은 본 발명에 의한 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법을 설명하기 위한 하나의 실시예에 불과한 것이며, 본 발명은 상기한 실시예에 한정하지 않고 이하의 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진자라면 누구든지 다양한 변경 실시가 가능할 것이다.What has been described above is only one embodiment for explaining the learning counter forced reset threshold time control method of the electronic control engine for automobile according to the present invention, the present invention is not limited to the above-described embodiment and the claims below Various changes can be made by those skilled in the art without departing from the gist of the present invention claimed in the related art.

Claims (1)

엔진시동후 냉각수 온도의 적정(약80℃)여부를 비교 판단하는 단계와, 엔진으로 흡입되는 공기의 온도변화를 측정하는 단계와, 피드백 영역인가를 확인하는 단계와, 시동시의 연료증량이 없는지를 확인하는 단계와, 난기후의 증량보정이 없는지를 확인하는 단계와, 퍼지컨트롤밸브(Purge Control Valve)의 동작이 정지중인가를 확인하는 단계와, 연료압력조절기의 작동여부를 확인하는 단계와, 에어콘스위치,파워스티어링스위치 및 각 전기부하의 온(ON),오프(OFF) 상태를 점검하는 단계와, 기어의 현위치 및 움직임 상태를 확인하는 단계와, 최종으로 학습카운터(CLRNEXE)의 제로(Zero)상태를 확인하는 단계를 거쳐 퍼지컨트롤밸브의 작동제어가 이루어지도록 한 제어유니트(ECU)의 학습카운터 강제리셋 드레숄드 시간제어방법에 있어서,Comparing and determining whether the coolant temperature is appropriate (approx. 80 ° C.) after starting the engine, measuring the temperature change of the air sucked into the engine, checking whether the feedback area is present, and whether there is no increase in fuel at startup. Checking the step, Checking whether there is no increase in post-warming, Checking whether the operation of the purge control valve (Purge Control Valve) is stopped, Checking the operation of the fuel pressure regulator and , Checking the on / off status of the air conditioner switch, the power steering switch and each electric load, checking the current position and movement state of the gear, and finally zero the learning counter (CLRNEXE). In the learning counter forced reset threshold time control method of the control unit (ECU) to perform the operation control of the purge control valve through the step of checking the (Zero) state, 상기 학습카운터(CLRNEXE)의 제로(Zero)상태를 확인하는 단계를 거친 후, 학습보정값(Learning Correction Value)이 제로(0)상태가 아니면 학습카운터의 강제리셋 드레숄드시간을 400초간 지속시키는 단계; 그리고,After checking the zero state of the learning counter CLRNEXE, if the learning correction value is not zero, the forced reset threshold time of the learning counter is maintained for 400 seconds. ; And, 상기 학습카운터의 강제리셋 드레숄드시간(400초)이 제로(0)상태인지를 확인하여 퍼지컨트롤밸브의 작동을 개시하는 단계;Confirming whether the forced reset threshold time (400 seconds) of the learning counter is in a zero state and initiating operation of the purge control valve; 를 포함하는 것을 특징으로 하는 자동차용 전자제어엔진의 학습카운터 강제리셋 드레숄드 시간제어방법.A learning counter forced reset threshold time control method for an electronic control engine for a vehicle, comprising: a.
KR1019960063206A 1996-12-09 1996-12-09 Reset threshold time control method of study counter in ecu KR100195495B1 (en)

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Publication number Priority date Publication date Assignee Title
KR100448160B1 (en) * 2002-04-17 2004-09-10 기아자동차주식회사 Method for controlling and decreasing the exhaust gas after start automatic car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448160B1 (en) * 2002-04-17 2004-09-10 기아자동차주식회사 Method for controlling and decreasing the exhaust gas after start automatic car

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