KR20120060110A - Control Method of Blow System in ISG Automobile - Google Patents

Control Method of Blow System in ISG Automobile Download PDF

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KR20120060110A
KR20120060110A KR1020100121684A KR20100121684A KR20120060110A KR 20120060110 A KR20120060110 A KR 20120060110A KR 1020100121684 A KR1020100121684 A KR 1020100121684A KR 20100121684 A KR20100121684 A KR 20100121684A KR 20120060110 A KR20120060110 A KR 20120060110A
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blower
engine
blower system
temperature
blow
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KR1020100121684A
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Korean (ko)
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KR101231467B1 (en
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김세준
권총아
유지용
방정환
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현대자동차주식회사
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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00764—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed
    • B60H1/00778—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed the input being a stationary vehicle position, e.g. parking or stopping
    • 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
    • F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Abstract

PURPOSE: A control method for a blower system of ISG vehicles is provided to improve fuel efficiency with maintaining an idle stop condition by operating the blower system in some measure. CONSTITUTION: A control method for a blower system of ISG vehicles comprises following steps. A condition for air conditioning is stored while driving(S31). If an idle stop condition is satisfied, the blower system is operated by stopping an engine with an idle system and reducing the air volume of the blower(S33). The blower system is re-operated with the stored condition for the air conditioning if the temperature of an evaporator exceeds a threshold, or indoor temperature and the temperature of coolants are below each pre-set threshold(S36). The air volume of the blower is reduced based on the stored condition for the air conditioning.

Description

아이에스지 차량의 블로우 시스템 제어 방법 {Control Method of Blow System in ISG Automobile}Control Method of Blow System in ISG Automobile

이 발명은 ISG(Idle Stop and Go) 장치가 장착된 ISG 차량에 관한 것으로서, 보다 상세하게는 ISG 장치가 구동하여 아이들 정지시 블로우 시스템을 제어하는 방법에 관한 것이다.The present invention relates to an ISG vehicle equipped with an Idle Stop and Go (ISG) device, and more particularly, to a method for controlling a blow system when an ISG device is driven to stop idle.

최근 CO2 저감을 위한 연비 향상기술이 여러 방면에서 개발되고 있는 바, 그 중 ISG(Idle Stop ＆ Go) 시스템은 차량이 정차 중인 경우에는 엔진의 시동을 끄고, 차량이 주행을 시작할 때 자동적으로 시동을 걸어주는 장치이다In recent years, fuel economy improvement technology for reducing CO2 has been developed. Among these, ISG (Idle Stop & Go) system turns off the engine when the vehicle is stopped and automatically starts when the vehicle starts to run. It is a hanging device

ISG(Idle Stop and Go) 장치는 차량의 차속, 엔진 회전속도, 냉각수온 등의 정보를 입력받아 정해진 조건에서 자동적으로 엔진이 아이들 정지되고(Idle Stop), 이후 운전자의 의지 및 차량 자체 조건에 의해 재출발이 요구되는 경우 자동적으로 엔진을 재시동(Go)하여 정상 운전이 가능하게 한다.ISG (Idle Stop and Go) device receives information such as vehicle speed, engine rotation speed, coolant temperature, etc., and automatically stops the engine under specified conditions. When restart is required, the engine is automatically restarted to allow normal operation.

ISG 장치에서 아이들 정지에 진입되는 조건은 엔진의 웜업이 충분이 이루어진 상태, 즉 냉각수온이 설정된 일정온도 이상을 유지하는 상태에서 차속이 검출되지 않는 정지 상태이고, 변속단이 중립을 유지하며, 브레이크 페달이 작동되어 설정된 소정시간 이상 유지되면 연비증대와 에미션의 안정화를 위해 엔진을 정지시킨다.The condition that enters idle stop in the ISG unit is a stop state in which the vehicle speed is not detected while the engine warms up sufficiently, that is, the coolant temperature is maintained above a predetermined temperature, and the shift stage remains neutral, and the brake When the pedal is operated and maintained for a predetermined time or more, the engine is stopped to increase fuel economy and stabilize the emission.

또한, 엔진의 아이들 정지 상태에서, 가속 페달의 작동, 브레이크 페달의 해제, 클러치 페달의 작동 등 운전자의 출발 의지가 검출되면 엔진 시동을 온시켜 정상적인 주행이 유지되도록 한다. 이러한 ISG 장치를 장착한 차량은 5 내지 15%의 연비 상승 효과를 얻을 수 있다.In addition, in the idle stop state of the engine, when the driver's intention to start, such as the operation of the accelerator pedal, the release of the brake pedal, the operation of the clutch pedal, is detected, the engine is turned on to maintain normal driving. Vehicles equipped with such an ISG device can achieve a fuel economy increase of 5 to 15%.

한편, 차량에는 여름이나 겨울에 탑승자들에게 쾌적한 실내 환경을 제공하기 위해 블로우 시스템이 장착되는데, ISG 장치가 가동하여 엔진의 아이들 정지시 이 블로어 시스템도 가동이 정지된다.On the other hand, the vehicle is equipped with a blow system to provide a comfortable indoor environment for occupants in summer or winter, when the ISG device is running, the blower system is also stopped when the engine is idle.

도 1은 종래의 ISG 차량의 블로어 시스템 제어방법을 도시한 동작 흐름도이다.1 is a flowchart illustrating a method of controlling a blower system of a conventional ISG vehicle.

블로어 시스템은 여름에는 에어컨을 가동하고 겨울에는 히터를 가동하여 자동차 실내가 적정한 온도를 유지하도록 한다.The blower system runs the air conditioner in the summer and the heaters in the winter to keep the car's interior at the right temperature.

ISG 차량이 아이들 정지 조건이 되면(S11), 엔진을 아이들 정지시키고 블로어 시스템의 가동을 정지시킨다(S12). 차량이 에어컨 가동중이면(S13), 증발기 온도가 기설정된 임계온도를 초과하는지 체크하여(S14), 증발기 온도가 기설정된 임계온도를 초과하면 엔진을 재시동하여 블로어 시스템을 재가동한다(S15). 차량이 에어컨 가동중이 아니고(S13), 히터 가동중이면(S16) 냉각수온과 실내온도가 각각 기설정된 임계온도보다 미만인지를 체크하여(S17), 냉각수온과 실내온도가 각각 기설정된 임계온도 아래로 내려가면 엔진을 재시동하여 블로어 시스템을 재가동한다(S15).When the ISG vehicle is in the idling stop condition (S11), the engine is idled and the blower system is stopped (S12). When the vehicle is operating the air conditioner (S13), it is checked whether the evaporator temperature exceeds the preset threshold temperature (S14). When the evaporator temperature exceeds the preset threshold temperature, the engine is restarted to restart the blower system (S15). If the vehicle is not in operation of the air conditioner (S13) and the heater is in operation (S16), it is checked whether the cooling water temperature and the indoor temperature are less than the preset threshold temperature, respectively (S17), and the cooling water temperature and the indoor temperature are respectively preset threshold temperatures. If down, restart the engine to restart the blower system (S15).

이와 같이 엔진 아이들 정지 중 블로어 시스템의 가동을 완전히 차단한 경우, 외부 기온에 따라 차량 실내 온도는 급격하게 차가워지거나 더워지게 되는데, 엔진 아이들 정지 상황임에도 불구하고 엔진이 재시동되기 때문에 연비 저감 효과가 감소되는 문제점이 있다.As such, when the blower system is completely shut off while the engine is stopped, the indoor temperature of the vehicle rapidly cools or heats according to the outside temperature. However, the fuel economy is reduced because the engine is restarted despite the engine idle state. There is a problem.

상술한 종래기술의 문제점을 해결하기 위하여 안출된 이 발명의 목적은 ISG 차량에서 엔진 아이들 정지 중에도 일정 정도 블로우 시스템이 가동되도록 하여 차량 실내의 쾌적성을 유지하면서 엔진 아이들 정지 상태가 유지되도록 하는 제어 방법을 제공하기 위한 것이다.An object of the present invention devised to solve the above-mentioned problems of the prior art is to control the blow system to a certain degree even during engine idle stop in an ISG vehicle, so that the engine idle stop state is maintained while maintaining the comfort of the vehicle interior. It is to provide.

상기한 목적을 달성하기 위한 이 발명에 따른 ISG 차량의 블로어 시스템 제어 방법은, 주행 중 블로어 시스템의 공조 조건을 저장하는 제1단계와, 엔진의 아이들 정지 조건이 되면, 엔진을 아이들 정지시키고 블로어 송풍량을 저감하여 상기 블로어 시스템을 가동하는 제2단계와, 증발기 온도가 기설정된 임계값을 초과하거나 냉각수온과 실내온도가 각각 기설정된 임계값보다 미만이면 상기 엔진을 재시동하며 상기 블로어 시스템을 상기 저장된 공조 조건으로 재가동하는 제3단계를 포함한 것을 특징으로 한다.A blower system control method for an ISG vehicle according to the present invention for achieving the above object is a first step of storing the air conditioning conditions of the blower system during driving, and when the engine stops the idle conditions, the engine is idled and the blower airflow amount A second step of operating the blower system by reducing the pressure and restarting the engine when the evaporator temperature exceeds a preset threshold or when the coolant temperature and the room temperature are respectively below a preset threshold and restart the blower system. And a third step of restarting the condition.

이상과 같이 이 발명에 따르면 ISG 차량에서 엔진 아이들 정지 중에도 블로어 시스템이 일정 정도 가동되기 때문에 차량 실내의 쾌적성이 오랫동안 유지될 수 있고 아이들 정지 조건을 충분히 유지할 수 있어서 연비 저감 효과가 향상되는 잇점이 있다.As described above, according to the present invention, since the blower system is operated to a certain degree even while the ISG vehicle is stopped, the comfort of the vehicle interior can be maintained for a long time and the idle stop condition can be sufficiently maintained, thereby improving fuel efficiency. .

도 1은 종래의 ISG 차량의 블로어 시스템 제어방법을 도시한 동작 흐름도이다.
도 2는 이 발명이 적용되는 ISG 차량의 도시한 구성 블록도이다.
도 3은 이 발명에 따른 ISG 차량의 블로어 시스템 제어방법을 도시한 동작 흐름도이다.1 is a flowchart illustrating a method of controlling a blower system of a conventional ISG vehicle.
2 is a block diagram showing a configuration of an ISG vehicle to which the present invention is applied.
3 is a flowchart illustrating a method of controlling a blower system of an ISG vehicle according to the present invention.

이하, 첨부된 도면을 참조하여 이 발명의 한 실시예에 따른 ISG 차량의 블로어 시스템의 제어 방법을 보다 상세하게 설명한다.Hereinafter, a control method of a blower system of an ISG vehicle according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 이 발명이 적용되는 ISG 차량의 도시한 구성 블록도이다.2 is a block diagram showing a configuration of an ISG vehicle to which the present invention is applied.

ISG 컨트롤러(24)는 통상적인 ISG 조건을 감시하기 위한 각종 센서들(도시되지 않음)로부터 차량의 상태 정보를 수집하고, 엔진 아이들 정지 조건이 되면 엔진(25)을 아이들 정지시키고, 블로어 시스템(26)의 블로어 송풍량이 감소되도록 한다. 한편, 엔진 아이들 정지상태에서 엔진 재시동 조건이 되면 엔진(25)을 재시동하면서 블로어 시스템(26)이 정상상태로 가동되도록 한다.The ISG controller 24 collects state information of the vehicle from various sensors (not shown) for monitoring typical ISG conditions, stops the engine 25 when the engine idle stop condition is reached, and the blower system 26 The blower airflow volume of the On the other hand, when the engine restart condition is reached in the engine idle state, the blower system 26 is operated in a normal state while restarting the engine 25.

ISG 컨트롤러(24)는 엔진 아이들 정지시 증발기온도센서(21), 냉각수온센서(22), 실내온도센서(23)를 이용하여 차량 실내 상태를 감시하다가 차량의 실내 온도가 임계상태를 벗어나면 엔진(25)을 재시동하면서 블로어 시스템(26)이 정상상태로 가동되도록 한다.The ISG controller 24 monitors the vehicle interior using the evaporator temperature sensor 21, the coolant temperature sensor 22, and the room temperature sensor 23 when the engine is stopped. Restart blower (25) to allow blower system (26) to operate normally.

도 3은 이 발명에 따른 ISG 차량의 블로우 시스템의 제어 방법을 도시한 동작 흐름도이다.3 is a flowchart illustrating a method of controlling a blow system of an ISG vehicle according to the present invention.

ISG 차량이 주행하는 동안에 사용자에 의해 또는 자동 설정된 블로어 시스템의 공조 조건을 저장해 놓는다(S31).The air conditioning condition of the blower system set by the user or automatically set while the ISG vehicle is driving is stored (S31).

엔진의 아이들 정지 조건이 되면(S32), 엔진을 아이들 정지시키고 블로어 송풍량을 저감하여 블로어 시스템을 가동한다(S33).When the idle stop condition of the engine is reached (S32), the engine is idled and the blower airflow amount is reduced to operate the blower system (S33).

차량의 공조조건이 에어컨 가동중이었으면(S34), 증발기 온도가 임계온도를 초과하는지 체크하여(S35), 증발기 온도가 임계온도를 초과하면 엔진을 재시동하며 블로어 시스템을 저장된 공조조건으로 재가동한다(S36).If the air conditioning condition of the vehicle was operating the air conditioner (S34), it is checked whether the evaporator temperature exceeds the threshold temperature (S35), and when the evaporator temperature exceeds the threshold temperature, the engine is restarted and the blower system is restarted to the stored air conditioning condition (S36). ).

차량의 공조조건이 에어컨 가동중이 아니고(S34) 히터 가동중이었으면(S37), 냉각수온과 실내온도가 각각 임계온도보다 미만인지를 체크하여(S38), 냉각수온과 실내온도가 각각 임계온도 아래로 내려가면 엔진을 재시동하며 블로어 시스템을 저장된 공조조건으로 재가동한다(S36). If the air conditioning condition of the vehicle is not operating the air conditioner (S34) and the heater is running (S37), it is checked whether the cooling water temperature and the indoor temperature are respectively lower than the threshold temperature (S38), and the cooling water temperature and the indoor temperature are respectively below the threshold temperature. When the engine is restarted, the engine is restarted and the blower system is restarted at the stored air conditioning condition (S36).

단계 S33에서 블로어 송풍량을 저감하는 방법은, 저장된 공조 조건에 따라 저감하는 방법, 기설정된 특정값으로 저감하는 방법, 실내외기 온도 차이에 따라 저감하는 방법, 일사량에 따라 저감하는 방법, 증발기 또는 히터코어 등의 온도에 따라 저감하는 방법, 위 방법들을 조합하여 저감하는 방법 등이 포함된다.The method of reducing the blower blow amount in step S33 is a method of reducing according to the stored air conditioning conditions, a method of reducing to a predetermined specific value, a method of reducing according to the difference between indoor and outdoor air temperature, a method of reducing according to the amount of insolation, an evaporator or a heater core. The method of reducing according to the temperature of the back, and the like to reduce the combination of the above methods.

21 : 증발기온도센서 22 : 냉각수온센서
23 : 실내온도센서 24 : ISG 컨트롤러
25 : 엔진 26 : 블로어 시스템21: evaporator temperature sensor 22: cooling water temperature sensor
23: room temperature sensor 24: ISG controller
25 engine 26 blower system

Claims (5)

주행 중 블로어 시스템의 공조 조건을 저장하는 제1단계와,
엔진의 아이들 정지 조건이 되면, 엔진을 아이들 정지시키고 블로어 송풍량을 저감하여 상기 블로어 시스템을 가동하는 제2단계와,
증발기 온도가 기설정된 임계값을 초과하거나 냉각수온과 실내온도가 각각 기설정된 임계값보다 미만이면 상기 엔진을 재시동하며 상기 블로어 시스템을 상기 저장된 공조 조건으로 재가동하는 제3단계를 포함한 것을 특징으로 하는 ISG 차량의 블로어 시스템 제어 방법.A first step of storing air conditioning conditions of the blower system while driving;
A second step of starting the blower system by idling the engine and reducing the blower air volume when the engine stops;
And a third step of restarting the engine and restarting the blower system to the stored air conditioning condition if the evaporator temperature exceeds the preset threshold or if the coolant temperature and the room temperature are below the preset threshold, respectively. How to control the blower system of the vehicle. 제 1 항에 있어서, 상기 제2단계에서 상기 블로우 송풍량은 상기 저장된 공조 조건의 블로어 송풍량에 따라 저감되는 것을 특징으로 하는 ISG 차량의 블로어 시스템 제어 방법.The blower system control method of claim 1, wherein the blow air amount is reduced according to the blower air blow amount of the stored air conditioning condition. 제 1 항에 있어서, 상기 제2단계에서 상기 블로우 송풍량은 기설정된 값으로 저감되는 것을 특징으로 하는 ISG 차량의 블로우 시스템 제어 방법.The method of claim 1, wherein the blow air volume is reduced to a predetermined value in the second step. 제 1 항에 있어서, 상기 제2단계에서 상기 블로우 송풍량은 상기 차량의 실내외기 온도 차이에 따라 저감되는 것을 특징으로 하는 ISG 차량의 블로우 시스템 제어 방법.The blow system control method of claim 1, wherein the blow air volume is reduced according to a difference between indoor and outdoor air temperatures of the vehicle. 제 1 항에 있어서, 상기 제2단계에서 상기 블로우 송풍량은 증발기 또는 히터코어 등의 온도에 따라 저감되는 것을 특징으로 하는 ISG 차량의 블로우 시스템 제어 방법.The blow system control method according to claim 1, wherein in the second step, the blow air flow is reduced according to a temperature of an evaporator or a heater core.
KR1020100121684A 2010-12-01 2010-12-01 Control Method of Blow System in ISG Automobile KR101231467B1 (en)

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