KR970044426A - Engine Exhaust Purification System and Control Method - Google Patents

Engine Exhaust Purification System and Control Method Download PDF

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Publication number
KR970044426A
KR970044426A KR1019950055317A KR19950055317A KR970044426A KR 970044426 A KR970044426 A KR 970044426A KR 1019950055317 A KR1019950055317 A KR 1019950055317A KR 19950055317 A KR19950055317 A KR 19950055317A KR 970044426 A KR970044426 A KR 970044426A
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KR
South Korea
Prior art keywords
temperature
exhaust gas
speed
fuel supply
detecting
Prior art date
Application number
KR1019950055317A
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Korean (ko)
Inventor
정성탄
Original Assignee
전성원
현대자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950055317A priority Critical patent/KR970044426A/en
Publication of KR970044426A publication Critical patent/KR970044426A/en

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Abstract

본 발명의 배기가스 온도가 일정온도 이하일 때 촉매장치가 제대로 작동하지 않아 유해가스가 그대로 방출됨을 방지하기 위한 엔징의 배기 정화 장치와 방법에 관한 것이다. 배기가스의 온도가 일정온도이하일 경우에는 촉매장치가 정상동작이 이루어지지 않는 바, 촉매장치가 작동하지 않게 되면 CO,HC, NOx등의 환원작용을 잘 이루어지지 못하므로서, 정화율이 떨어져 유해한 가스가 그대로 차량의 외부로 방출되어지게 된다. 본 고안에 서는 이와같은 종래의 문제점을 해결하기 위하여 일정속도이상에서 배기가의 온도가 일정온도 이하일 경우 연료공급을 줄여 촉매장치의 정상동작이 이루어지도록 유도하여 주므로서, 배기가스가 그대로 차량의 외부로유출됨을 방지하고자 하는 것이다.When the exhaust gas temperature of the present invention is below a certain temperature, the catalyst device does not operate properly, and relates to an exhaust purification apparatus and method of the engine to prevent the harmful gas is released as it is. If the temperature of the exhaust gas is below a certain temperature, the catalyst device does not operate normally. If the catalyst device is not operated, CO, HC, NOx, etc. cannot be reduced, and thus the purification rate is low and harmful gas is lost. Is released to the outside of the vehicle as it is. In the present invention, in order to solve such a conventional problem, when the exhaust gas temperature is above a certain speed at a certain speed or less, the fuel supply is reduced to induce the normal operation of the catalyst device, so that the exhaust gas is directly outside the vehicle. This is to prevent leakage.

Description

에진의 배기 정화 장치와 제어방법.Ejin's Exhaust Purification System and Control Method.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 엔지의 배기 정화 장치의 블록구성도1 is a block diagram of an engine exhaust purification apparatus of the present invention.

제2도는 본 발명의 엔진의 배기 정화 제어방법의 실행 과정을 보인 플로우챠트.2 is a flowchart showing the execution process of the exhaust purification control method of the engine of the present invention.

Claims (3)

차량의 속도를 감지하는 속도 감지수단(1)과, 배출되는 배기가스의 온도를 검출하는 배기가스온도 검출수단(2)과, 상기 속도 감지수단(1)및 배기가스온도 검출수단(2)으로부터 감지신호를 입력받아 연료 공급수단(4)을 제어하는 제어수단(3)과, 상기 제어수단(3)의 제어를 받아 엔진의 연료공급으 제어하는 연료공급수단(4)의 구성요소를 이루어지는 것을 특징으로 하는 엔진의 배기 정화 장치.From the speed detecting means 1 for detecting the speed of the vehicle, the exhaust gas temperature detecting means 2 for detecting the temperature of the exhaust gas discharged from the speed detecting means 1 and the exhaust gas temperature detecting means 2 A control means (3) for receiving the detection signal to control the fuel supply means (4) and the fuel supply means (4) for controlling the fuel supply of the engine under the control of the control means (3). The exhaust purification apparatus of the engine characterized by the above-mentioned. 차량의 속도를 감지하여 일정속도이상인가르 판단하는 제1과정과, 상기 제1과정 판단결과 일정속도 이상일 경우 배기가스의 온도를 검출하여 설정된 온도와 비교하는 제2과정과, 상기 제2과정 비교결과에 따라 연료 공급수단(4)을 제어하여 엔진으로 공급되는 연료의 공급을 제어하는 제3과정으로 이루어지는 것을 특징으로 하는 엔진의 배기 정화 제어방법.A first process of detecting the speed of the vehicle and determining whether the speed is greater than or equal to a predetermined speed; a second process of detecting the temperature of the exhaust gas and comparing it with a set temperature when the first process is determined to be greater than or equal to the predetermined speed; And a third step of controlling the supply of fuel supplied to the engine by controlling the fuel supply means (4) according to the present invention. 제2항에 있어서, 제3과정은 배기가스의 온도가 설정된 온도보다 낮을 경우에는 엔진의 연료공급을 줄인 후, 속도감지수단(1)을 통하여 차량의 속도를 감지하여 차량의 주행상태를 판단하는 단계와, 상기 단계 판단결과 아이들링상태이면 연료공급을 정상화시키는 단계를 포함하는 것을 특징으로 하는 엔진의 배기 정화 제어방법.The method of claim 2, wherein the third step is to reduce the fuel supply of the engine when the temperature of the exhaust gas is lower than the set temperature, and then detect the speed of the vehicle through the speed sensing means 1 to determine the driving state of the vehicle. And normalizing the fuel supply if the idle state is determined as a result of the step determination.
KR1019950055317A 1995-12-23 1995-12-23 Engine Exhaust Purification System and Control Method KR970044426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950055317A KR970044426A (en) 1995-12-23 1995-12-23 Engine Exhaust Purification System and Control Method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950055317A KR970044426A (en) 1995-12-23 1995-12-23 Engine Exhaust Purification System and Control Method

Publications (1)

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KR970044426A true KR970044426A (en) 1997-07-26

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KR1019950055317A KR970044426A (en) 1995-12-23 1995-12-23 Engine Exhaust Purification System and Control Method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990059936A (en) * 1997-12-31 1999-07-26 정몽규 How to prevent catalyst deterioration in cars
KR20150034623A (en) * 2013-09-26 2015-04-03 제네럴 일렉트릭 컴퍼니 Systems and methods for monitoring catalyst deactivation and controlling an air／fuel ratio
KR101509951B1 (en) * 2013-10-24 2015-04-07 현대자동차주식회사 System for operating temperature alteration preventiom of scr catalyst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990059936A (en) * 1997-12-31 1999-07-26 정몽규 How to prevent catalyst deterioration in cars
KR20150034623A (en) * 2013-09-26 2015-04-03 제네럴 일렉트릭 컴퍼니 Systems and methods for monitoring catalyst deactivation and controlling an air／fuel ratio
KR101509951B1 (en) * 2013-10-24 2015-04-07 현대자동차주식회사 System for operating temperature alteration preventiom of scr catalyst

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