KR100262325B1 - Early activation method for electric catalyst converter for a hand transmission car - Google Patents

Early activation method for electric catalyst converter for a hand transmission car Download PDF

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Publication number
KR100262325B1
KR100262325B1 KR1019960072134A KR19960072134A KR100262325B1 KR 100262325 B1 KR100262325 B1 KR 100262325B1 KR 1019960072134 A KR1019960072134 A KR 1019960072134A KR 19960072134 A KR19960072134 A KR 19960072134A KR 100262325 B1 KR100262325 B1 KR 100262325B1
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South Korea
Prior art keywords
catalytic converter
power
heating device
activation
power supply
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KR1019960072134A
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Korean (ko)
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KR19980053084A (en
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한백규
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정몽규
현대자동차주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE: A method for pre-activation of a catalytic converter is provided to reduce time for activation of a catalyst by heating the catalyst although an ignition key is not ignited when traveling of a vehicle is detected. CONSTITUTION: Sufficiency of power is decided if an ignition key is inserted and a clutch switch is turned on. If power is lower than a specific level, an alarm lamp is lighted on. If power is over a reference level, power is supplied to a heating device of a catalytic converter. Upon starting of power supply to the heating device, ignition of an engine and rotation of a crank are detected. If not, temperature of the catalytic converter is decided. If the catalytic converter is not sufficiently activated, power to the heating device is cut off. If the crack rotates, power supply to the heating device is kept for sufficiently activating the catalytic converter. If temperature of the catalytic converter approaches an activation level, power supply is stopped. According to pre-activation of the catalytic converter, time for activation is shortened and discharge of exhaust emission is reduced.

Description

수동변속기 차량의 전기 예열식 촉매변환기의 조기 활성화방법Early activation of electric preheating catalytic converter in manual transmission vehicle

본 발명은 수동변속 차량의 전기예열식 촉매변환기의 조기 활성화 방법에 관한 것이다.The present invention relates to a method for early activation of an electrically preheated catalytic converter of a manual transmission vehicle.

최근 환경 문제의 중요성이 부각되면서 환경오염의 주원인으로 지적되고 있는 차량의 배기가스 방출 규제요건이 대폭 강화되고 있다.Recently, the importance of environmental issues has increased, and the requirements for emission control of vehicles, which have been pointed to as the main cause of environmental pollution, have been greatly strengthened.

이에 따라 배기가스중에 포함된 유해성분인 CO, HC, NOx를 산환 환원 반응에 의해 각기 무해한 CO2, H2O, N2로 변환시키기 위한 촉매변환기를 배기파이프의 도중에 접속하고 있다.As a result, a catalytic converter for converting CO, HC, and NOx, which are harmful components contained in the exhaust gas, into harmless CO 2 , H 2 O, and N 2 , respectively, is converted in the middle of the exhaust pipe.

그런데 촉매가 배기가스와 반응하여 배기가스를 정화하기 위해서는 일정한 온도에 도달하여야 정상기능을 유지하게 되므로 이 기능 유지에 필요한 온도를 활성화 온도라고 한다.However, in order for the catalyst to react with the exhaust gas and to purify the exhaust gas, it is necessary to reach a constant temperature to maintain a normal function, so the temperature required for maintaining this function is called an activation temperature.

이에 따라 엔진의 시동초기시에는 촉매변환기가 활성화되지 않기 때문에 많은 배기가스를 배출하게 되며 차량이 배출하는 상당량의 유해 배기가스가 엔진의 시동 초기에 집중적으로 배출되는 것으로 알려져 있다.Accordingly, since the catalytic converter is not activated at the start of the engine, a large amount of exhaust gas is emitted, and a considerable amount of harmful exhaust gas emitted from the vehicle is known to be concentrated at the beginning of the engine.

이 때문에 각국을 시동초기의 배기가스 배출량을 더욱 엄격히 규제하게 되므로써 촉매의 조기 활성화를 위하여 배출되는 배기가스열에 의한 자연적 가열과는 별도로 전원에 의한 발열로서 촉매를 조기 활성화시키는 방법이 사용되고 있다.For this reason, since the exhaust gas emission at the start of each country is more strictly regulated, a method of early activating the catalyst as a heat generated by the power source is used separately from the natural heating by the heat of the exhaust gas emitted for the early activation of the catalyst.

그러나 상기한 방식은 엔진의 시동키가 점화(IG-ON) 위치에 접속되어 시동이 걸린 상태에서 비로소 촉매를 가열하기 위한 전원이 공급되도록 하고 있어 운전자가 곧 차량을 가동시킬 의사가 있는 상태라 하더라도 점화 스위치의 온 상태가 아니면 미리 촉매를 활성화시켜 배기가스 방출량을 줄일 수 있는 방법이 없었다.However, the above method is that the engine's ignition key is connected to the ignition (IG-ON) position so that power is supplied to heat the catalyst until the ignition is started, so even if the driver is willing to start the vehicle soon. If the ignition switch is not on, there is no way to reduce the exhaust emissions by activating the catalyst in advance.

이에 본 발명은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는 바는Accordingly, the present invention has been proposed in view of the above problems, and has as its object

운전자가 차량을 운행할 것으로 판단되는 조건임이 검출될 때에는 시동키의 점화 상태가 아니라 하더라도 촉매를 가열시키기 위한 전원을 공급하여 촉매의 활성화 도달 시간을 단축시키는 수동변속 차량의 전기예열식 촉매변환기의 조기 활성화 방법을 제공하는 데 있다.When it is detected that the driver is expected to drive the vehicle, the preheating of the preheating catalytic converter of the manual transmission vehicle, which shortens the time to reach the activation of the catalyst by supplying power for heating the catalyst even if the ignition state is not ignited. To provide an activation method.

상기한 목적을 달성하기 위하여 본 발명은 촉매 변환기와, 이 촉매변환기를 예열하기 위한 가열장치가 구비된 수동 변속기 차량의 촉매 변환기 활성화방법에 있어서, 1) 시동키가 삽입되었는가를 검출하는 단계와; 2) 시동키가 삽입되었다면 클러치스위치가 온 되었는가를 검출하는 단계와; 3) 클러치스위치가 온 상태라면 뱃터리전원이 충분한가를 판단하여 기준치 이하라면 경고 등을 점등하고 중지하며 기준치 이상이라면 촉매변환기의 가열장치에 전원을 공급하는 단계와; 4) 상기 촉매변환기 가열장치에의 전원공급이 개시되면, 엔진이 점화되어 크랭크가 회전 작동중인가를 판단하여 아니라면 현재 촉매변환기가 기준치 이상 정화성능을 발휘할 수 있는 온도로 활성화 되었는가를 판단하는 단계와; 5) 상기 단계4)의 조건을 충족시키지 못하였다면 상기 단계 3)으로 되돌아가 진행하며 조건을 충족하였다면 촉매변환기의 가열장치에의 공급전원을 차단하는 단계와; 6) 상기 단계4)에서 크랭크가 회전작동중이라면 촉매변환기가 충분히 활성화되도록 가열장치에 계속하여 전원공급을 유지하는 단계와; 7) 촉매변환기가 활성화 온도에 도달하면 가열장치에의 전원공급을 차단하는 단계와; 로 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a catalytic converter activating method of a manual transmission vehicle having a catalytic converter and a heating device for preheating the catalytic converter, comprising the steps of: 1) detecting whether a ignition key is inserted; 2) detecting whether the clutch switch is turned on if the ignition key is inserted; 3) if the clutch switch is turned on, determining whether the battery power is sufficient, and if it is below the reference value, turning on and stopping a warning light and supplying power to the heating device of the catalytic converter if it is above the reference value; 4) when the power supply to the catalytic converter heating device is started, if the engine is ignited to determine whether the crank is running in rotation, and if the current catalytic converter is activated to a temperature capable of purifying performance above the reference value; ; 5) if the condition of step 4) is not satisfied, returning to step 3), and if the condition is satisfied, cutting off the power supply to the heating apparatus of the catalytic converter; 6) continuing to supply power to the heating apparatus so that the catalytic converter is sufficiently activated if the crank is rotating in step 4); 7) shutting off the power supply to the heating apparatus when the catalytic converter reaches the activation temperature; Characterized in that consists of.

제1도는 본 발명에 의한 촉매활성화 장치를 나타내는 도면.1 is a view showing a catalyst activation device according to the present invention.

제2도는 본 발명의 전체 시스템을 나타내는 도면.2 shows an overall system of the present invention.

제3도는 본 발명의 작동 흐름도.3 is an operational flowchart of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 촉매변환기(EHC) 2 : 배기파이프1: catalytic converter (EHC) 2: exhaust pipe

3 : 촉매변환기 가열장치 4 : 시동키3: catalytic converter heating device 4: ignition key

5 : 시동키삽입 검출스위치 6 : 전자제어장치5: start key insertion detection switch 6: electronic control device

7 : 클러치스위치 8 : 뱃터리전원검출기7: clutch switch 8: battery power detector

9 : 경고등 10 : TPS9: warning light 10: TPS

11 : 온도센서11: temperature sensor

이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

제1도는 본 발명에 의한 촉매 활성화 장치를 나타내는 도면이며, 제2도는 본 발명의 전체 시스템을 도시하는 도면이며, 제3도는 본 발명의 작동 흐름도이다.FIG. 1 is a diagram showing a catalyst activating apparatus according to the present invention, FIG. 2 is a diagram showing the entire system of the present invention, and FIG. 3 is an operation flowchart of the present invention.

도면중 부호 1은 배기가스 정화를 위해 배기파이프(2)의 도중에 접속되는 촉매변환기이며 부호 3은 촉매변환기의 온도가 낮은 경우 조기에 활성화시키기 위해 가열하는 전기적 가열장치이다.In the figure, reference numeral 1 denotes a catalytic converter connected in the middle of the exhaust pipe 2 for purification of exhaust gas, and reference numeral 3 denotes an electric heating device that heats to activate early when the temperature of the catalytic converter is low.

상기 가열장치(3)가 촉매변환기(1)를 가열시키게 되는 전체 시스템을 제2도에 의해 설명한다.The overall system in which the heating device 3 heats the catalytic converter 1 is illustrated by FIG.

시동키(4)가 삽입되면(off위치) 시동키삽입 검출스위치95)가 온 되어 전자제어장치(6)가 로직을 실행할 작동대기 상태에 돌입한다.When the ignition key 4 is inserted (off position), the ignition key insertion detection switch 95 is turned on, and the electronic controller 6 enters into an operation standby state to execute logic.

다음에 전자제어장치(6)는 클러치페달이 밟혀져 클러치스위치(7)가 온 되었는가를 검출하게 되며 뱃터리전원검출기(8)를 통하여 뱃터리전원이 충분한가를 확인하여 촉매변환기 가열장치(3)를 발열시켜 촉매변환기(1)를 가열하도록 구성되어 있다.Next, the electronic controller 6 detects whether the clutch pedal 7 is turned on by depressing the clutch pedal, and checks whether the battery power is sufficient through the battery power detector 8, and thus the catalytic converter heating device 3 Heats the catalytic converter 1 by exothermic heating.

이하 본 발명의 상세를 제3도의 동작 흐름도에 의해 설명한다.The details of the present invention will be described below with reference to the operation flowchart of FIG.

시동키(4)가 삽입되어 시동키삽입 검출스위치(5)가 온 되면(단계 가) 전자제어장치(6)는 클러치가 작동되었는가를 검출하게 된다.(단계 나)When the ignition key 4 is inserted and the ignition key insertion detection switch 5 is turned on (step a), the electronic controller 6 detects whether the clutch is activated. (Step b)

이는 수동변속기 차량의 경우 엔진 시동시 크랭크 작동력을 감소시키기 위해 클러치를 밟고 시동키를 점화(Ignition) 위치로 돌리게 되는 것을 착안하여 시동키 삽입 및 클러치 스위치(7)가 온 되면 운전자가 차량을 운행할 예정, 또는 의사가 있는 것으로 파악하여 본 발명의 로직을 실행하게 되는 기초단계이다.In the case of a manual transmission vehicle, it is conceived to step on the clutch and turn the ignition key to the ignition position to reduce the crank operation force when the engine is started, so that when the ignition key is inserted and the clutch switch 7 is turned on, the driver cannot drive the vehicle. It is a basic step of executing the logic of the present invention by determining that it is intended or willing.

전자제어장치(6)는 시동키가 삽입되고 클러치스위치가 온 되면 뱃터리전원(8)이 촉매변환기 가열장치(3)를 가열시킬 수 있을 만큼 충분한가를 점검한다.(단계 다)The electronic controller 6 checks whether the battery power source 8 is sufficient to heat the catalytic converter heating device 3 when the ignition key is inserted and the clutch switch is turned on.

이 단계는 뱃터리전원의 경우 엔진이 시동되지 않은 상태에서 사용되면 방전되어 기능이 상실되기 때문으로 엔진의 시동없이도 전원을 사용 가능한 상태인가를 확인하므로써 엔진시동 불능을 예방하기 위한 조처이다.This step prevents the engine from starting by checking if the battery power can be used without starting the engine because the battery power is discharged when the engine is not started.

상기 단계(다)에서 뱃터리전원이 기준치 이하라면 경고등(9)을 점등하고 촉매변환기의 예열을 포기하고 상황을 종료하며 운전자는 뱃터리를 점검한다.(단계 라, 단계 타)If the battery power is lower than the standard value in the above step (c), the warning lamp 9 is turned on, the preheating of the catalytic converter is abandoned, the situation is terminated, and the driver checks the battery.

상기 단계(다)에서 뱃터리전원이 충분하다면 촉매변환기 가열장치(3)에 전원을 공급하여 촉매변환기의 가열을 시작한다.(단계 마)If the battery power is sufficient in step (c), power is supplied to the catalytic converter heating device 3 to start heating the catalytic converter.

촉매변환기의 가열이 시작되면 엔진이 시동되었는가, 즉 크랭킹 작동 중인가를 검출하며 이는 크랭크 회전시 크랭크 포지션센서(10, TPS)로부터 검출되는 상사점 검출신호를 받아서 전자제어장치(6)가 판단하게 된다(단계 바)When the heating of the catalytic converter starts, it detects whether the engine is started, that is, whether the cranking operation is performed, which receives the top dead center detection signal detected from the crank position sensor 10 (TPS) when the crank rotates, and causes the electronic controller 6 to judge. (Step bar)

상기 단계(바)에서 엔진이 시동되지 않았다면 전자제어장치(6)는 밧데리 방전을 피하기 위하여 촉매변환기 가열장치(3)가 충분히 활성화 되도록 전원공급을 하지 아니하고 촉매변환기가 50% 이상의 성능을 발휘할 수 있는 것으로 추정되는 온도에 도달하는 것을 온도센서(11)로부터 검출하는 순간 촉매변환기 가열장치에의 전원공급을 차단하게 되며 아직 50%에 도달치 아니하였다면 단계(다)로 되돌아가 계속 진행한다.(단계 사, 단계 아)If the engine is not started in the step (bar), the electronic controller 6 does not supply power enough to activate the catalytic converter heater 3 to avoid battery discharge and the catalytic converter can perform 50% or more. When the temperature sensor 11 detects that the temperature reaches the presumed temperature, the power supply to the catalytic converter heating device is cut off, and if it has not yet reached 50%, the process returns to step (c) and continues. Four, step a)

이때 전원공급을 차단 후에는 다시 단계(바)로 돌아가 엔진시동을 기다린다.At this time, after the power supply is cut off, return to step (bar) and wait for engine start.

그러나 상기 단계(바)에서 엔진이 시동되었음이 검출되면 뱃터리는 충전되므로 계속 사용할 수 있기 때문에 가열장치에 계속 전원을 공급한다.(단계 자)However, if it is detected in the step (bar) that the engine has been started, the battery is charged and can continue to be used to supply power to the heating device.

이와 같이하여 촉매변환기가 충분히 가열되어 활성화 온도에 도달하였는가를 온도센서(11)로부터 검출하여(단계 차) 검출한 온도가 활성화 온도에 미도달되었다면 계속하여 가열시키고 활성화 온도에 도달하였다면 전자제어장치(6)는 촉매변환기 가열장치(3)에의 전원공급을 차단하고(단계 카) 촉매변환기의 예열로직 실행을 중지한다.(단계 타)In this way, it is detected from the temperature sensor 11 whether the catalytic converter is sufficiently heated to reach the activation temperature (step difference). If the detected temperature does not reach the activation temperature, the heating is continued and if the activation temperature is reached, the electronic controller ( 6) cuts off the power supply to the catalytic converter heating device 3 (step k) and stops preheating logic execution of the catalytic converter.

이상과 같은 본 발명은 수동변속기 창착 차량에서 엔진의 시동전이라 하더라도 시동키가 삽입되고 클러치가 작동되면 차량을 운행할 의지를 운전자가 갖고 있는 것으로 상황을 판단하여 미리 촉매변환기를 예열시키도록 하므로써 촉매변환기의 활성화 도달 시간을 단축시켜 엔진의 시동시 그만큼 배기가스 배출을 저감시킬 수 있게 되는 효과가 있다.In the present invention as described above, even if the engine is started before the engine is started in the manual transmission-mounted vehicle, when the ignition key is inserted and the clutch is operated, the driver judges the situation as having the will to operate the vehicle and preheats the catalytic converter in advance. By shortening the arrival time of the activation of the converter, it is possible to reduce the exhaust gas emissions at the start of the engine.

Claims (2)

촉매 변환기와, 이 촉매변환기를 예열하기 위한 가열장치가 구비된 수동 변속기 차량의 촉매 변환기 활성화방법에 있어서, 1) 시동키가 삽입되었는가를 검출하는 단계와; 2) 시동키가 삽입되었다면 클러치스위치가 온 되었는가를 검출하는 단계와; 3) 클러치스위치가 온 상태라면 뱃터리전원이 충분한가를 판단하여 기준치 이하라면 경고 등을 점등하고 중지하며 기준치 이상이라면 촉매변환기의 가열장치에 전원을 공급하는 단계와; 4) 상기 촉매변환기 가열장치에의 전원공급이 개시되면, 엔진이 점화되어 크랭크가 회전 작동중인가를 판단하여 아니라면 현재 촉매변환기가 기준치 이상 정화성능을 발휘할 수 있는 온도로 활성화 되었는가를 판단하는 단계와; 5) 상기 단계4)의 조건을 충족시키지 못하였다면 상기 단계3)으로 되돌아가 진행하며 조건을 충족하였다면 촉매변환기의 가열장치에의 공급전원을 차단하는 단계와; 6) 상기 단계4)에서 크랭크가 회전작동중이라면 촉매변환기가 충분히 활성화되도록 가열장치에 계속하여 전원공급을 유지하는 단계와; 7) 촉매변환기가 활성화 온도에 도달하면 가열장치에의 전원공급을 차단하는 단계와; 로 이루어지는 것을 특징으로 하는 수동변속기 차량의 전기예열식 촉매변환기의 조기 활성화방법.A catalytic converter activating method of a manual transmission vehicle having a catalytic converter and a heating device for preheating the catalytic converter, comprising: 1) detecting whether a ignition key is inserted; 2) detecting whether the clutch switch is turned on if the ignition key is inserted; 3) if the clutch switch is turned on, determining whether the battery power is sufficient, and if it is below the reference value, turning on and stopping a warning light and supplying power to the heating device of the catalytic converter if it is above the reference value; 4) when the power supply to the catalytic converter heating device is started, if the engine is ignited to determine whether the crank is operating in rotation, and if the current catalytic converter is activated to a temperature that can perform purification performance above the reference value; ; 5) if the condition of step 4) is not satisfied, returning to step 3), and if the condition is satisfied, cutting off the power supply to the heating apparatus of the catalytic converter; 6) continuing to supply power to the heating apparatus so that the catalytic converter is sufficiently activated if the crank is rotating in step 4); 7) shutting off the power supply to the heating apparatus when the catalytic converter reaches the activation temperature; Early activation method of the electric preheating catalytic converter of the manual transmission vehicle, characterized in that consisting of. 제1항에 있어서, 엔진이 시동되지 않은 단계에서 촉매변환기가 50% 이상 정화성능을 발휘할 수 있는 온도에 도달된 것으로 판단되면 촉매변환기 가열장치에의 전원공급을 차단하는 것을 특징으로 하는 수동변속기 차량의 전기예열식 촉매변환기의 조기 활성화 방법.2. The manual transmission vehicle according to claim 1, wherein when it is determined that the catalytic converter has reached a temperature at which 50% or more of the catalytic converter can reach the purification performance in the stage where the engine is not started, the power transmission to the catalytic converter heating device is cut off. Early activation of the electropreheated catalytic converter.
KR1019960072134A 1996-12-26 1996-12-26 Early activation method for electric catalyst converter for a hand transmission car KR100262325B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030050251A (en) * 2001-12-18 2003-06-25 현대자동차주식회사 catalyst heating control system and method of manual transmission vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127447A (en) * 1993-10-29 1995-05-16 Aqueous Res:Kk Heating method for exhaust gas emission control catalyst converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127447A (en) * 1993-10-29 1995-05-16 Aqueous Res:Kk Heating method for exhaust gas emission control catalyst converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030050251A (en) * 2001-12-18 2003-06-25 현대자동차주식회사 catalyst heating control system and method of manual transmission vehicle

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