KR20010059407A - Method for engine controlling of vehicle - Google Patents

Method for engine controlling of vehicle Download PDF

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Publication number
KR20010059407A
KR20010059407A KR1019990066804A KR19990066804A KR20010059407A KR 20010059407 A KR20010059407 A KR 20010059407A KR 1019990066804 A KR1019990066804 A KR 1019990066804A KR 19990066804 A KR19990066804 A KR 19990066804A KR 20010059407 A KR20010059407 A KR 20010059407A
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South Korea
Prior art keywords
engine
range
vehicle
shift lever
speed
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KR1019990066804A
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Korean (ko)
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KR100354016B1 (en
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국인석
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이계안
현대자동차주식회사
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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
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
    • F02D41/345—Controlling injection timing
    • 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
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/16—Introducing closed-loop corrections for idling

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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

PURPOSE: An engine control method for a vehicle is provided to compensate idle air amount in a point where transmission load is changed by using temperature of oil and rpm of a turbine when a vehicle is changed to a D(Drive)-range from an N(Neutral)-range in a low temperature idle state. CONSTITUTION: An engine control method comprises the steps of: reading a throttle opened degree, a turbine rpm, an output rpm, a brake pedal switch, shift lever position, oil temperature, an engine rpm and cooling water temperature and deciding if the shift lever is changed to a D-range from an N-range(S110); deciding if air amount increment/decrement condition is satisfied with response to change of the shift lever to the D-range(S120); and determining retardant time period according to the engine rpm and oil temperature and outputting a fuel injection amount control signal according to the increment/decrement of air amount if the air amount increment/decrement condition is not satisfied(S130,S140). Therefore, rapid rising/falling of engine rpm is prevented.

Description

차량용 엔진 제어 방법{METHOD FOR ENGINE CONTROLLING OF VEHICLE}Vehicle engine control method {METHOD FOR ENGINE CONTROLLING OF VEHICLE}

본 발명은 차량용 엔진 제어에 관한 것으로서, 더욱 상세하게는 자동 변속기를 장착한 차량에서 변속 레버를 N 레인지에서 D 레인지로 절환시 부하 정도를 정확히 보상할 수 있는 차량용 엔진 제어 방법에 관한 것이다.The present invention relates to a vehicle engine control, and more particularly, to a vehicle engine control method capable of accurately compensating the load degree when the shift lever is switched from the N range to the D range in a vehicle equipped with an automatic transmission.

일반적으로 엔진은 공급되는 연료에 따라 가솔린 엔진, 디젤 엔진, 가스 엔진 등으로 나누어진다.In general, the engine is divided into a gasoline engine, a diesel engine, and a gas engine according to the fuel supplied.

상기한 엔진들을 장착한 차량중 특히 자동 변속기를 장착한 차량에서 저온 아이들시 변속 레버를 N 레인지에서 D 레인지로 절환할 경우, 종래에는 엔진이 급상승 및 급 하강하는 것을 방지하기 위하여 아이들 공기량을 추가시켰다.Among the vehicles equipped with the above-mentioned engines, especially when the shift lever is switched from the N range to the D range during low temperature idling, an idle air amount is added to prevent the engine from rising and falling. .

그러나, 상기한 방법은 단순히 변속 레버 스위치 신호만을 이용하여 N, D 레인지 절환을 인식하고, 그에 따른 필요 공기량을 추가 시키거나 감소시키기 때문에 변속 레버가 일시적으로 머무르는 구간에서의 기동 토크를 정확히 보상하지 못하여 엔진 회전수의 급상승 및 급하강을 완전히 개선하지 못하는 문제점을 내포하고 있다.However, the above method merely recognizes the N and D range switching by using only the shift lever switch signal, and adds or decreases the amount of air required accordingly, and thus does not accurately compensate the starting torque in the section in which the shift lever temporarily stays. There is a problem that does not completely improve the sharp rise and fall of the engine speed.

따라서, 상기한 문제점을 해결하기 위한 본 발명의 목적은, 차량이 저온 아이들 상태에서 변속 레버의 N레인지에서 D 레인지로의 절환시 유온 및 터빈 회전수를 이용하여 실제로 변속기 부하 변속이 발생하는 포인트에서 아이들 공기량을 보상하기 위한 차량용 엔진 제어 방법을 제공하기 위한 것이다.Accordingly, an object of the present invention for solving the above problems is, at the point where the transmission load shift actually occurs by using the oil temperature and the turbine speed when the vehicle is switched from the N range to the D range of the shift lever in a low temperature idle state. It is to provide a vehicle engine control method for compensating idle air amount.

도 1은 본 발명에 적용되는 차량용 엔진 제어 장치 구성 블록도.1 is a block diagram of a vehicle engine control apparatus applied to the present invention.

도 2는 본 발명에 따른 차량용 엔진 제어 방법 동작 순서도.2 is a flowchart illustrating an operation method of a vehicle engine control method according to the present invention;

도 3은 본 발명에 적용되는 공기량 증감량 그래프 이다.3 is a graph of air amount increase and decrease applied to the present invention.

이를 실현하기 위한 본 발명은, 차량이 시동 온 되면, 검출되는 스로틀 밸브 개도, 터빈 회전수, 출력측 회전수, 브레이크 페달 스위치, 변속 레버 위치, 유온, 엔진 회전수 및 냉각수온을 입력받아 판독한 후, 변속 레버가 N 레인지에서 D 레인지로 절환되었는가를 비교 판단하는 단계와; 상기 단계에서 변속 레버가 N 레인지에서 D 레인지로 절환됨이 판단되면, 공기량 증감 적용 조건을 만족하는가를 비교 판단 하는 단계와; 상기 단계에서 공기량 증감 적용 조건을 만족하지 않으면, 엔진 회전수와 유온에 따른 지연 시간을 설정하고, 공기량 증감에 따른 연료 분사량 제어 신호를 출력하는 단계로 이루어지는 것을 특징으로 한다.According to the present invention for realizing this, when the vehicle is turned on, the detected throttle valve opening degree, turbine rotation speed, output rotation speed, brake pedal switch, shift lever position, oil temperature, engine rotation speed, and cooling water temperature are read and received. Comparing and determining whether the shift lever is switched from the N range to the D range; If it is determined in the step that the shift lever is switched from the N range to the D range, comparing and determining whether the air volume increase and decrease application condition is satisfied; If the air quantity increase and decrease application condition is not satisfied at the step, the delay time according to the engine speed and the oil temperature is set, and the fuel injection amount control signal according to the air amount increase and decrease is characterized in that it comprises a step.

이하, 상기의 목적을 실현할 수 있는 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 차량용 엔진 제어 방법을 예를 들어 상세히 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the vehicle engine control method is demonstrated in detail based on attached drawing which shows the preferable embodiment of this invention which can implement | achieve the said objective.

도 1은 본 발명에 적용되는 차량용 엔진 제어 장치 구성 블록도로서, 차량의주행 상태에 따라 가변되는 스로틀 밸브 개도량(11), 터빈 회전수(12), 출력측 회전수(13), 브레이크 페달 스위치(14), 유온(15), 변속 레버 위치(16), 엔진 회전수(17) 및 냉각수온(18)의 변화를 검출하는 차량 동작 상태 검출 수단(10)과, 상기 차량 동작 상태 검출 수단(10)에서 검출된 차량 주행 상태 신호를 인가 받아 차량이 시동 온 되면, 검출되는 스로틀 밸브 개도, 터빈 회전수, 출력측 회전수, 브레이크 페달 스위치, 변속 레버 위치, 유온, 엔진 회전수 및 냉각수온을 입력받아 판독한 후, 변속 레버가 N 레인지에서 D 레인지로 절환되었는가를 비교 판단하여 상기 변속 레버가 N 레인지에서 D 레인지로 절환됨이 판단되면, 공기량 증감 적용 조건을 만족하는가를 비교 판단 하여 상기 공기량 증감 적용 조건을 만족하지 않으면, 엔진 회전수와 유온에 따른 지연 시간을 설정하고, 공기량 증감에 따른 연료 분사량 제어 신호를 출력하는 엔진 제어 수단(20)과; 상기 엔진 제어 수단(20)에서 출력되는 연료 분사량 신호에 따라 분사량을 조절하는 인젝터(30)로 이루어져 있다.1 is a block diagram of an engine control apparatus for a vehicle according to the present invention, wherein a throttle valve opening amount 11, a turbine speed 12, an output side speed 13, and a brake pedal switch varying according to a vehicle driving state (14), vehicle operating state detecting means (10) for detecting changes in oil temperature (15), shift lever position (16), engine speed (17), and cooling water temperature (18), and the vehicle operating state detecting means ( Input the detected throttle valve opening, turbine speed, output speed, brake pedal switch, shift lever position, oil temperature, engine speed and coolant temperature when the vehicle is started by receiving the vehicle driving status signal detected in 10). After receiving and reading, if it is determined whether the shift lever is switched from the N range to the D range and the shift lever is switched from the N range to the D range, it is determined whether to satisfy the air volume increase / decrease application condition. Do not meet the increasing or decreasing amount applied condition, the engine the engine control means 20 to set the delay time in accordance with the revolution speed and the oil temperature, and outputs a fuel injection control signal in accordance with the amount of air or decrease the; It consists of an injector 30 to adjust the injection amount in accordance with the fuel injection amount signal output from the engine control means 20.

상기한 구성으로 이루어진 차량용 엔진 제어 방법을 첨부한 도면을 참조하여 설명한다.A vehicle engine control method having the above configuration will be described with reference to the accompanying drawings.

도 2는 본 발명에 따른 차량용 엔진 제어 방법 동작 순서도 이고, 도 3은 본 발명에 적용되는 공기량 증감량 그래프 이다.2 is a flowchart illustrating an operation method of a vehicle engine control method according to the present invention, and FIG. 3 is a graph of air amount increase and decrease applied to the present invention.

도 2에 도시되어 있는 바와 같이, 운전자의 조작 상태에 따라 엔진의 동작 상태가 가변되는 차량에서, 상기 엔진을 기 설정된 프로그램에 의해 제어하는 엔진 제어 수단(20)은 차량 동작 상태 감지 수단(10)으로 소정의 제어 신호를출력한다(S100).As shown in FIG. 2, in a vehicle in which an operating state of an engine is changed according to a driver's operation state, the engine control means 20 for controlling the engine by a preset program may include a vehicle operating state detecting means 10. A predetermined control signal is output (S100).

이에 차량 동작 상태 감지 수단(10)은 차량의 스로틀 밸브 개도량 검출부(11), 터빈 회전수 검출부(12), 출력측 회전수 검출부(13), 브레이크 페달 스위치 검출부(14), 유온 검출부(15), 변속 레버 위치 검출부(16), 엔진 회전수 검출부(17) 및 냉각수온 검출부(18)로부터 검출되는 스로틀 밸브 개도량(Th), 터빈 회전수(Nt), 출력측 회전수(No), 브레이크 페달 스위치의 온/오프 상태, 유온(ATF), 변속 레버 위치 상태, 엔진 회전수(Ne) 및 냉각수온(WTS)의 검출값을 엔진 제어 수단(20)으로 전송한다.Accordingly, the vehicle operation state detecting means 10 includes a throttle valve opening degree detection unit 11, a turbine rotation speed detection unit 12, an output side rotation speed detection unit 13, a brake pedal switch detection unit 14, and an oil temperature detection unit 15. , The throttle valve opening amount Th, the turbine rotation speed Nt, the output rotation speed No, and the brake pedal detected by the shift lever position detector 16, the engine speed detector 17, and the coolant temperature detector 18. The on / off state of the switch, the oil temperature (ATF), the shift lever position state, the engine speed Ne and the coolant temperature WTS are transmitted to the engine control means 20.

이에, 엔진 제어 수단(20)은 상기 차량 동자 상태 검출 수단(10)으로부터 입력되는 스로틀 밸브 개도량(Th), 터빈 회전수(Nt), 출력측 회전수(No), 브레이크 페달 스위치의 온/오프 상태, 유온(ATF), 변속 레버 위치 상태, 엔진 회전수(Ne) 및 냉각수온(WTS)의 검출값을 인가받아 판독하여, 변속 레버가 N 레인지에서 D 레인지로 절환되었는가를 비교 판단한다(S110).Accordingly, the engine control means 20 turns on / off the throttle valve opening amount Th, the turbine speed Nt, the output side speed No, and the brake pedal switch inputted from the vehicle dynamic state detection means 10. The detection value of the state, the oil temperature (ATF), the shift lever position state, the engine speed (Ne), and the coolant temperature (WTS) is received and read to compare and determine whether the shift lever is switched from the N range to the D range (S110). ).

상기에서 변속 레버가 N 레인지에서 D 레인지로 절환됨이 판단되면, 엔진 제어 수단(20)은 공기량 증감 적용 조건을 만족하는 가를 비교 판단 한다(S120).If it is determined in the above that the shift lever is switched from the N range to the D range, the engine control means 20 compares and determines whether the air volume increase and decrease application condition is satisfied (S120).

상기에서 공기량 증감 적용 조건은 자동 변속기의 유온 ≤ 0℃, 터빈 회전수(Nt) ≥ 50rpm, 터빈 회전수의 기울기 ≥ 30rpm/sec, 엔진 아이들 스위치 온, 브레이크 스위치 온 및 차속(No) ≤ 1.25Kph 인 조건을 모두 만족해야 한다.Air flow increase and decrease application conditions are the oil temperature of the automatic transmission ≤ 0 ℃, turbine speed (Nt) ≥ 50rpm, inclination of the turbine speed ≥ 30rpm / sec, engine idle switch on, brake switch on and vehicle speed (No) ≤ 1.25Kph All conditions must be met.

따라서, 상기 공기량 증감 적용 조건을 만족하지 못하면, 엔진 제어 수단(20)은 검출된 엔진 냉각수온(WTS)과 변속기의 유온(ATF)에 따라 기 설정된 공기량 증감분 적용 맵에서 지연 시간을 설정한다(S130).Therefore, if the air amount increase / decrease application condition is not satisfied, the engine control means 20 sets a delay time in the preset air amount increase / decrease application map according to the detected engine coolant temperature WTS and the transmission oil temperature ATF (S130). ).

이어서, 엔진 제어 수단(20)은 상기 도 3에 도시되어 있는 바와 같이 소정의 지연 시간이 경과 한 후, 검출된 엔진 냉각수온(WTS)따라 기 설정된 공기량 증감분 적용 맵에서 연료 분사량을 설정하여 해당하는 소정의 연료 분사량 제어 신호를 인젝터(30)로 출력한다(S140).Subsequently, the engine control means 20 sets a fuel injection amount in the preset air amount increment map according to the detected engine coolant temperature (WTS) after a predetermined delay time has elapsed, as shown in FIG. 3. The predetermined fuel injection amount control signal is output to the injector 30 (S140).

하지만, 상기(S120)에서 공기량 증감 적용 조건을 만족하면, 상기 검출된 엔진 냉각수온(WTS)따라 기 설정된 공기량 증감분 적용 맵에서 연료 분사량을 설정하여 해당하는 소정의 연료 분사량 제어 신호를 인젝터(30)로 출력하는(S140) 단계를 바로 실행한다.However, when the air amount increase and decrease application condition is satisfied in S120, the fuel injection amount is set in the preset air amount increase / decrease application map according to the detected engine cooling water temperature (WTS), thereby injecting a corresponding fuel injection amount control signal. Immediately executes the step of outputting (S140).

인젝터(30)는 상기 엔진 제어 수단(20)에서 출력되는 소정의 연료 분사량 제어 신호에 따라 엔진으로 공급되는 연료량을 조절하여 공기량을 보정한다.The injector 30 corrects the amount of air by adjusting the amount of fuel supplied to the engine according to a predetermined fuel injection amount control signal output from the engine control means 20.

이로써, 저온 엔진 아이들시 엔진 회전수의 급상승 및 급강하를 방지할 수 있다.Thereby, the sudden rise and fall of engine speed during low temperature engine idling can be prevented.

이상에서와 같이 본 발명에 따른 차량용 엔진 제어 방법은, 차량이 저온 아이들 상태에서 변속 레버의 N레인지에서 D 레인지로의 절환시 유온 및 터빈 회전수를 이용하여 실제로 변속기 부하 변속이 발생하는 포인트에서 아이들 공기량을 보상함으로써, 엔진이 급상습 및 급강하 됨을 방지할 수 있다.As described above, the vehicle engine control method according to the present invention uses the oil temperature and the turbine rotational speed when the vehicle is switched from the N range to the D range of the shift lever in a low temperature idle state, and at the point where the transmission load shift actually occurs. By compensating the amount of air, it is possible to prevent the engine from rushing and falling.

Claims (3)

차량이 시동 온 되면, 검출되는 스로틀 밸브 개도, 터빈 회전수, 출력측 회전수, 브레이크 페달 스위치, 변속 레버 위치, 유온, 엔진 회전수 및 냉각수온을 입력받아 판독한 후, 변속 레버가 N 레인지에서 D 레인지로 절환되었는가를 비교 판단하는 단계와; 상기 단계에서 변속 레버가 N 레인지에서 D 레인지로 절환됨이 판단되면, 공기량 증감 적용 조건을 만족하는가를 비교 판단 하는 단계와; 상기 단계에서 공기량 증감 적용 조건을 만족하지 않으면, 엔진 회전수와 유온에 따른 지연 시간을 설정하고, 공기량 증감에 따른 연료 분사량 제어 신호를 출력하는 단계로 이루어지는 것을 특징으로 하는 차량용 엔진 제어 방법.When the vehicle is started, the throttle valve opening detected, the turbine speed, the output speed, the brake pedal switch, the shift lever position, the oil temperature, the engine speed, and the coolant temperature are inputted and read. Comparing and judging whether it has been switched to a range; If it is determined in the step that the shift lever is switched from the N range to the D range, comparing and determining whether the air volume increase and decrease application condition is satisfied; If the air quantity increase and decrease application condition is not satisfied at the step, the engine engine control method comprising the step of setting the delay time according to the engine speed and the oil temperature, and outputting the fuel injection amount control signal according to the air amount increase and decrease. 제 1항에 있어서, 상기 공기량 증감 적용 조건은 자동 변속기의 유온 ≤ 0℃, 터빈 회전수(Nt) ≥ 50rpm, 터빈 회전수의 기울기 ≥ 30rpm/sec, 엔진 아이들 스위치 온, 브레이크 스위치 온 및 차속(No) ≤ 1.25Kph 인 조건을 모두 만족하는 것을 특징으로 하는 차량용 엔진 제어 방법.According to claim 1, wherein the air flow increase and decrease application conditions are the oil temperature of the automatic transmission ≤ 0 ℃, turbine speed (Nt) ≥ 50rpm, the slope of the turbine speed ≥ 30rpm / sec, engine idle switch on, brake switch on and vehicle speed ( No) satisfying all the conditions of ≤ 1.25 Kph. 제 1항에 있어서, 상기에서 공기량 증감 적용 조건을 만족하면, 공기량 증감에 따른 연료 분사량 제어 신호를 출력하는 단계를 바로 수행하는 것을 특징으로 하는 차량용 엔진 제어 방법.The vehicle engine control method according to claim 1, further comprising outputting a fuel injection amount control signal according to the increase or decrease of the air amount when the air amount increase and decrease application condition is satisfied.
KR1019990066804A 1999-12-30 1999-12-30 Method for engine controlling of vehicle KR100354016B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020018755A (en) * 2000-09-04 2002-03-09 이계안 Method for controlling shift of vehicle
KR100398137B1 (en) * 2001-10-30 2003-09-19 현대자동차주식회사 Delay time control method for controlling air of auto transmission
KR100448160B1 (en) * 2002-04-17 2004-09-10 기아자동차주식회사 Method for controlling and decreasing the exhaust gas after start automatic car
KR20080054491A (en) * 2006-12-13 2008-06-18 현대자동차주식회사 An engine rpm control method of automatic transmission vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020018755A (en) * 2000-09-04 2002-03-09 이계안 Method for controlling shift of vehicle
KR100398137B1 (en) * 2001-10-30 2003-09-19 현대자동차주식회사 Delay time control method for controlling air of auto transmission
KR100448160B1 (en) * 2002-04-17 2004-09-10 기아자동차주식회사 Method for controlling and decreasing the exhaust gas after start automatic car
KR20080054491A (en) * 2006-12-13 2008-06-18 현대자동차주식회사 An engine rpm control method of automatic transmission vehicle

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