KR100410742B1 - Method for engine controlling in vehicle - Google Patents

Method for engine controlling in vehicle Download PDF

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Publication number
KR100410742B1
KR100410742B1 KR10-2001-0030319A KR20010030319A KR100410742B1 KR 100410742 B1 KR100410742 B1 KR 100410742B1 KR 20010030319 A KR20010030319 A KR 20010030319A KR 100410742 B1 KR100410742 B1 KR 100410742B1
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South Korea
Prior art keywords
vehicle
speed
engine
tip
turbine
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KR10-2001-0030319A
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Korean (ko)
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KR20020091548A (en
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최상달
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현대자동차주식회사
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Priority to KR10-2001-0030319A priority Critical patent/KR100410742B1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/04Introducing corrections for particular operating conditions
    • F02D41/12Introducing corrections for particular operating conditions for deceleration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D2200/00Input parameters for engine control
    • F02D2200/50Input parameters for engine control said parameters being related to the vehicle or its components
    • F02D2200/501Vehicle speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D2200/00Input parameters for engine control
    • F02D2200/60Input parameters for engine control said parameters being related to the driver demands or status
    • F02D2200/602Pedal position

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

Abstract

주행중인 차량에서 차속 감속시 터빈 회전수 대비 엔진 회전수에 따른 흡입 공기량을 보정 제어하여 토크 컨버터의 슬립량을 제어할 목적으로;To control the slip amount of the torque converter by compensating and controlling the intake air amount according to the engine speed when the vehicle speed is decelerated in the running vehicle;

주행중인 차량에서 차속이 감속 중인가를 판단하는 단계와;Determining whether the vehicle speed is decelerating in the driving vehicle;

상기 단계에서 차속이 감속중인 경우, 터빈 회전수 대비 엔진 회전수의 관계를 판단하여 흡입 공기량을 보정 제어하기 위한 소정의 제어신호를 출력하는 단계로 이루어져 있어서, 운전자의 가속페달 조작에 따른 팁-인 시 팁-인 쇼크를 저감시킬 수 있다.When the vehicle speed is being decelerated in the above step, determining the relationship between the engine speed and the turbine speed and outputting a predetermined control signal for correcting and controlling the intake air amount, thereby tip-in according to the driver's accelerator pedal operation. Reduce tip tip-in shock.

Description

차량용 엔진 제어 방법{METHOD FOR ENGINE CONTROLLING IN VEHICLE}In-vehicle engine control method {METHOD FOR ENGINE CONTROLLING IN VEHICLE}

본 발명은 차량용 엔진 제어 방법에 관한 것으로서, 더욱 상세하게는 자동변속기를 장착한 차량에서 차속 감속시 엔진의 흡입 공기량을 조절하여 변속 토크 컨버터 및 차체의 반력에 의한 쇼크를 저감하기 위한 차량용 엔진 제어 방법에 관한 것이다.The present invention relates to a vehicle engine control method, and more particularly, to a vehicle engine control method for reducing shock caused by a reaction force of a shift torque converter and a vehicle body by adjusting an intake air amount of an engine when a vehicle speed is decelerated in a vehicle equipped with an automatic transmission. It is about.

자동 변속기를 장착한 차량에서 파워 트레인은 엔진으로부터의 동력을 전달하는 토크 컨버터와 적절한 회전력을 얻기 위한 변속기구로 구성되어 있다.In vehicles with automatic transmissions, the power train consists of a torque converter that transmits power from the engine and a transmission mechanism to obtain proper torque.

주행중인 차량에서 파워 트레인의 상태가 터빈 회전수가 엔진회전수보다 크게되는 상태에서 운전자의 가속페달 조작에 따른 팁-인(Tip-in)이 이루어지면, 차량의 반력에 의한 팁-인 쇼크가 발생하였다.If a tip-in is made by the driver's accelerator pedal while the power train is at a turbine speed greater than the engine speed, the tip-in shock is generated by the reaction force of the vehicle. It was.

따라서, 종래에는 상기한 팁-인 쇼크를 저감하기 위해 가속시 엔진의 토오크를 저하시키거나 시 마운팅을 보강함으로서 팁-인 쇼크의 발생을 억제하였다.Therefore, conventionally, in order to reduce the tip-in shock, the occurrence of tip-in shock is suppressed by lowering the torque of the engine during acceleration or reinforcing the sea mounting.

그러나, 상기한 종래의 방법은 차량 가속시 엔진 토오크 저하에 의한 가속감이 떨어지고, 샤시 마운팅을 보강할 시 NVH(Noise Vibration Harshness : 자동차의 거주성 및 쾌적성의 특성 항목)를 저하시키는 문제점을 내포하고 있다.However, the above-described conventional method has a problem that acceleration of the engine torque decreases when the vehicle is accelerated, and the NVH (Noise Vibration Harshness) is reduced when the chassis mounting is reinforced. .

따라서, 본 발명의 목적은 상기한 문제점을 해결하기 위한 것으로, 주행중인 차량에서 차속 감속시 터빈 회전수 대비 엔진 회전수에 따른 흡입 공기량을 보정제어하여 토크 컨버터의 슬립량을 제어 할 수 있는 차량용 엔진 제어 방법을 제공하기 위한 것이다.Accordingly, an object of the present invention is to solve the above problems, the vehicle engine that can control the slip amount of the torque converter by controlling the amount of intake air according to the engine speed compared to the turbine speed when the vehicle speed is decelerated in the running vehicle It is to provide a control method.

상기한 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,

주행중인 차량에서 차속이 감속 중인가를 판단하는 단계와;Determining whether the vehicle speed is decelerating in the driving vehicle;

상기 단계에서 차속이 감속중인 경우, 터빈 회전수 대비 엔진 회전수의 관계를 판단하여 흡입 공기량을 보정 제어하기 위한 소정의 제어신호를 출력하는 단계로 이루어지는 것을 특징으로 한다.When the vehicle speed is being decelerated in this step, it is characterized in that it comprises the step of outputting a predetermined control signal for correcting and controlling the intake air amount by determining the relationship of the engine speed to the turbine speed.

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

도2는 본 발명에 적용되는 차량용 엔진 제어 방법 동작 순서도.2 is a flowchart illustrating a method for controlling a vehicle engine applied to the present invention.

도 3은 본 발명에 따른 터빈 회전수 대비 엔진 회전수 관계 그래프이다.3 is a graph showing the engine speed versus the engine speed according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

100 : 차량 주행상태 검출수단 110 : 스로틀 밸브 개도 검출부100: vehicle driving state detection means 110: throttle valve opening degree detection unit

120 : 터빈 회전수 검출부 130 : 엔진 회전수 검출부120 turbine speed detection unit 130 engine speed detection unit

140 : 가속페달 작동 검출부 150 : 차속 검출부140: accelerator pedal operation detection unit 150: vehicle speed detection unit

200 : 변속 제어 수단 300 : 구동수단200: shift control means 300: drive means

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 차량용 엔진 제어 장치 구성 블록도로서, 차량 주행상태 검출 장치(100)는 차량의 주행 상태에 따라 가변 출력되는 차량 주행상태를 검출하고, 엔진 제어 장치(200)는 상기 차량 주행상태 검출 장치(100)에서 검출된 신호를 입력받고자 소정의 제어신호를 상기 차량 동작 상태 검출 장치(100)에 출력하고, 상기 제어신호에 따라 동기되어 출력되는 차량의 스로틀 밸브 개도, 터빈 회전수, 엔진 회전수, 가속페달 동작상태 및 차속 등을 입력받아 주행중인 차량에서 차속이 감속상태이면 터빈 회전수 대비 엔진 회전수의 차이를 판단하여 터빈 회전수가 엔진 회전보다 작거나 같아지도록 엔진 흡입 공기량을 보정하기 위한 소정의 제어신호를 출력하며, 구동장치(300)는 상기 엔진 제어 장치(200)에서 출력되는 흡입 공기량 보정신호에 동기되어 엔진의 출력을 제어한다.1 is a block diagram illustrating a configuration of an engine control apparatus for a vehicle according to the present invention. The vehicle driving state detecting apparatus 100 detects a vehicle driving state that is variably output according to the driving state of the vehicle, and the engine control apparatus 200 includes the vehicle. A throttle valve opening degree of the vehicle which is output in synchronization with the control signal according to the control signal is outputted to the vehicle operation state detection device 100 to receive a signal detected by the driving state detection device 100. If the vehicle speed is decelerated in the driving vehicle by receiving the engine speed, the accelerator pedal operation state, and the vehicle speed, the amount of engine intake air is determined so that the turbine speed is smaller than or equal to the engine speed by determining the difference between the engine speed and the turbine speed. Outputs a predetermined control signal for correction, and the drive device 300 is synchronized with the intake air amount correction signal output from the engine control device 200. And it controls the output of the engine.

상기에서 차량 동작 상태 검출 장치(100)는 운전자의 가속페달 조작상태에따라 연동하는 스로틀 밸브의 개도량을 검출하여 변속단 결정시 적용되는 스로틀 밸브 개도량 검출부(110)와; 주행중인 자동 변속기 차량의 터빈 회전수를 검출하여 변속단 결정시 적용되는 터빈 회전수 검출부(120)와; 주행중인 차량의 엔진의 회전수를 검출하여 변속단 결정시 적용되는 엔진 회전수 검출부(130)와; 운전자의 가속페달 조작상태에 따라 스위치의 온/오프 상태가 가변됨을 검출하는 가속페달 동작 검출부(140)와; 주행중인 차량의 차속을 검출하는 차속 검출부(150)로 이루어져 있다.The apparatus 100 for detecting a vehicle operation state includes: a throttle valve opening amount detection unit 110 which is applied when a shift stage is determined by detecting an opening amount of a throttle valve that interlocks according to an accelerator pedal operation state of a driver; A turbine rotation speed detection unit (120) which is applied at the time of determining the shift stage by detecting the turbine rotation speed of the automatic transmission vehicle in operation; An engine speed detection unit (130) which is applied when the speed of the engine is determined by determining the speed of the engine of the running vehicle; An accelerator pedal operation detector 140 for detecting that an on / off state of the switch is changed according to an accelerator pedal operation state of a driver; The vehicle speed detection unit 150 detects a vehicle speed of a running vehicle.

상기한 구성으로 이루어진 차량용 엔진 제어 동작을 첨부한 도 2 및 도 3을 참조하여 상세히 설명한다.With reference to Figures 2 and 3 attached to the vehicle engine control operation made in the above configuration will be described in detail.

주행중인 차량에서 차량 주행상태 검출 장치(100)는 차량 주행상태에 따라 가변되는 스로틀 밸브 개도, 터빈 회전수, 엔진 회전수, 가속페달 동작상태 및 차속 등을 검출한다.The vehicle driving state detecting apparatus 100 detects a throttle valve opening degree, a turbine rotational speed, an engine rotational speed, an accelerator pedal operation state, a vehicle speed, and the like, which vary according to the vehicle driving state.

이에 엔진 제어 장치(200)는 소정의 제어신호를 상기 차량 주행상태 검출 장치(100)로 출력하고, 차량 주행상태 검출 장치(100)는 상기 엔진 제어 장치(200)에서 출력된 소정의 제어신호에 의해 동기되어 검출된 스로틀 밸브 개도, 터빈 회전수, 엔진 회전수, 가속페달 동작상태 및 차속 등을 출력한다.Accordingly, the engine control apparatus 200 outputs a predetermined control signal to the vehicle driving state detecting apparatus 100, and the vehicle driving state detecting apparatus 100 is applied to the predetermined control signal output from the engine control apparatus 200. The throttle valve opening degree, turbine rotation speed, engine rotation speed, accelerator pedal operation state, vehicle speed, and the like detected in synchronization with each other are output.

엔진 제어 장치(200)는 상기 차량 주행상태 검출 장치(100)로부터 입력되는 스로틀 밸브 개도, 터빈 회전수, 엔진 회전수, 가속페달 동작상태 및 차속 등을 입력받아 주행중인 차량의 차속이 감속 중인가를 판단한다(S100,S110).The engine control apparatus 200 receives the throttle valve opening degree, the turbine rotation speed, the engine rotation speed, the accelerator pedal operation state and the vehicle speed input from the vehicle driving state detection device 100 to determine whether the vehicle speed of the driving vehicle is decelerating. It is determined (S100, S110).

상기에서 주행중인 차량의 차속이 감속 중임이 판단되면, 엔진 제어장치(200)는 터빈 회전수(Nt)가 엔진 회전수(Ne)보다 큰가를 비교 판단한다(S120).When it is determined that the vehicle speed of the vehicle being driven is being decelerated, the engine controller 200 determines whether the turbine speed Nt is greater than the engine speed Ne (S120).

즉, 상기에서 차량이 감속중 일 경우, 파워 트레인 상태는 터빈 회전수(Nt)가 엔진 회전수(Ne)보다 커지고, 반력을 받고 있기 때문에 이 때 운전자가 가속페달을 밟아 팁-인(Tip-in)하면 반력과 같은 방향으로 엔진 회전수의 상승력이 작용하여 팁-인 쇼크가 크게 발생하게 된다.That is, in the case where the vehicle is decelerating in the above, the power train state is the turbine speed (Nt) is greater than the engine speed (Ne), and the reaction force is received at this time, so the driver steps on the accelerator pedal at the tip-in in), the upward force of the engine speed acts in the same direction as the reaction force, causing a large tip-in shock.

그러나, 차속 감속상태에서 도 3에 도시되어 있는 바와 같이 토크 컨버터 슬립량(△N)을 엔진 회전수(Ne) ≥ 터빈 회전수(Nt)가 되도록 하면 반력 R이 없어지므로, 순수 엔진 회전수 상승력만 팁-인 쇼크에 영향을 주게됨에 따라 상기 팁-인 쇼크를 저감시킬 수 있게된다.However, when the torque converter slip amount ΔN is set to the engine speed Ne ≥ the turbine speed Nt as shown in FIG. 3 in the vehicle speed deceleration state, the reaction force R disappears, so that the pure engine speed increase force Only tip-in shock is affected, thereby reducing the tip-in shock.

따라서, 상기(S120)에서 차속이 감속상태이면서 터빈 회전수(Nt)가 엔진 회전수(Ne)보다 크다고 판단되면, 엔진 제어 장치(200)는 엔진 회전수(Ne)가 터빈 회전수(Nt)보다 크거나 같아지도록 엔진으로 흡입되는 공기량을 보정하기 위한 소정의 제어신호를 출력한다(S130).Therefore, when it is determined in step S120 that the turbine speed Nt is greater than the engine speed Ne while the vehicle speed is in a decelerated state, the engine control apparatus 200 may determine that the engine speed Ne is the turbine speed Nt. A predetermined control signal for correcting the amount of air sucked into the engine to be greater than or equal to is output (S130).

구동장치(300)는 상기 엔진 제어 장치(200)에서 출력되는 소정의 흡입 공기량 보정 제어신호에 동기되어 스로틀 밸브 개도를 조절함으로써 엔진 회전수(Ne)가 터빈 회전수(Nt)보다 크거나 같아 질 때까지 상승시킨다.The driving device 300 may adjust the throttle valve opening in synchronization with a predetermined intake air amount correction control signal output from the engine control device 200 so that the engine speed Ne may be greater than or equal to the turbine speed Nt. Until it rises.

이로서, 차량의 차속 감속시에 운전자의 가속페달 조작에 따른 팁-인이 이루어지더라도 팁-인 쇼크를 최소화 할 수 있는 효과가 있다.As a result, even if tip-in is performed according to the accelerator pedal operation of the driver when the vehicle speed is decelerated, the tip-in shock can be minimized.

이상 설명한 바와 같이 차량용 엔진 제어 방법은 주행중인 차량에서 차속 감속시 터빈 회전수 대비 엔진 회전수에 따른 흡입 공기량을 보정 제어하여 토크 컨버터의 슬립량을 제어함으로써, 운전자의 가속페달 조작에 따른 팁-인시 팁-인 쇼크를 저감시킬 수 있다.As described above, the vehicle engine control method controls the slip amount of the torque converter by compensating and controlling the amount of intake air according to the engine speed compared to the turbine speed when the vehicle speed is decelerated in the driving vehicle, thereby controlling tip slip-in according to the driver's accelerator pedal operation. Tip-in shock can be reduced.

Claims (1)

주행중인 차량에서 차속이 감속 중인가를 판단하는 단계와;Determining whether the vehicle speed is decelerating in the driving vehicle; 상기 단계에서 차속이 감속중인 경우, 터빈 회전수 대비 엔진 회전수의 관계를 판단하여 흡입 공기량을 보정 제어하기 위한 소정의 제어신호를 출력하는 단계로 이루어지는 것을 특징으로 하는 차량용 엔진 제어 방법.And outputting a predetermined control signal for correcting and controlling the amount of intake air by determining the relationship between the engine speed and the turbine speed when the vehicle speed is being decelerated in the above step.
KR10-2001-0030319A 2001-05-31 2001-05-31 Method for engine controlling in vehicle KR100410742B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101011125B1 (en) * 2008-06-30 2011-01-28 쌍용자동차 주식회사 Method for controlling shocks of tip-in and tip-out in 4WD system of vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101011125B1 (en) * 2008-06-30 2011-01-28 쌍용자동차 주식회사 Method for controlling shocks of tip-in and tip-out in 4WD system of vehicle

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