KR100836301B1 - Cpf regeneration method of car - Google Patents

Cpf regeneration method of car Download PDF

Info

Publication number
KR100836301B1
KR100836301B1 KR1020080016325A KR20080016325A KR100836301B1 KR 100836301 B1 KR100836301 B1 KR 100836301B1 KR 1020080016325 A KR1020080016325 A KR 1020080016325A KR 20080016325 A KR20080016325 A KR 20080016325A KR 100836301 B1 KR100836301 B1 KR 100836301B1
Authority
KR
South Korea
Prior art keywords
filter
differential pressure
regeneration
soot filtration
regenerating
Prior art date
Application number
KR1020080016325A
Other languages
Korean (ko)
Inventor
장경익
Original Assignee
현대자동차주식회사
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.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020080016325A priority Critical patent/KR100836301B1/en
Application granted granted Critical
Publication of KR100836301B1 publication Critical patent/KR100836301B1/en

Links

Images

Classifications

    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/0236—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using turbine waste gate valve
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor

Abstract

A method of regenerating a catalyzed particulate filter of a vehicle is provided to improve durability of the catalyzed particulate filter by opening a waste gate valve installed at an opening of a turbine such that the catalyzed particulate filter is regenerated without using a post injection. A method of regenerating a catalyzed particulate filter(30) of a vehicle comprises the step of being subject to a pressure of a front end and a rear end of the catalyzed particulate filter from differential pressure filters(41,42) to calculate a differential pressure. The calculated differential pressure is compared with a predetermined valve to determine if the filter needs regenerating. If the filter regeneration is necessary, a waste gate valve is opened such that exhaust gas directly flows into the catalyzed particulate filter.

Description

자동차의 매연여과필터 재생방법{CPF regeneration method of car}Regeneration method of smoke filter of automobile {CPF regeneration method of car}

도 1은 자동차의 터보차저 및 매연여과필터의 설치상태도,1 is an installation state of a turbocharger and a soot filtration filter of an automobile,

도 2는 상기 터보차저의 웨이스트게이트밸브 설치상태도,2 is a wastegate valve installation state of the turbocharger;

도 3은 본 발명에 따른 자동차의 매연여과필터 재생방법의 순서도이다.3 is a flowchart of a method for regenerating a soot filtration filter of a vehicle according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 배기매니폴드 20 : 터보차저10: exhaust manifold 20: turbocharger

21 : 터빈 22 : 컴프레서21 turbine 21 compressor

23 : 웨이스트게이트밸브 30 : 매연여과필터23: wastegate valve 30: soot filtration filter

41,42 : 차압센서 50 : 진공액츄에이터41,42: differential pressure sensor 50: vacuum actuator

51 : 작동로드 52 : 진공챔버51: operating rod 52: vacuum chamber

60 : 진공펌프 65 : 진공호스60: vacuum pump 65: vacuum hose

70 : 솔레노이드밸브 80 : ECU70: solenoid valve 80: ECU

본 발명은 자동차의 매연여과필터 재생방법에 관한 것으로, 특히 터보차저의 웨이스트게이트밸브를 이용하는 자동차의 매연여과필터 재생방법에 관한 것이다.The present invention relates to a method for regenerating a soot filtration filter of a motor vehicle, and more particularly, to a method for regenerating a soot filtration filter of a motor vehicle using a wastegate valve of a turbocharger.

매연여과필터는 통상 CPF(Catalyzed Particulate Filter)라 지칭되며, 강화된 배기가스 규제, 특히 입자상 물질(PM)의 배출량을 제한하는 것에 대응하기 위하여 장착된다.Soot filters are commonly referred to as Catalyzed Particulate Filters (CPFs) and are equipped to counter tougher emissions regulations, in particular to limit emissions of particulate matter (PM).

상기 매연여과필터는 터보차저의 후단이나 배기파이프의 중간 부분(차량 바닥 하면(under floor))에 설치되는데, 배기가스중의 입자상 물질(soot 성분)을 포집하여 대기중으로 배출되는 것을 막으며, 입자상 물질의 포집량이 일정 정도 이상으로 증가하면 연료의 후분사를 통해 배기가스 온도를 상승시켜 연소시킴으로써 재생이 이루어지도록 되어 있다.The soot filtration filter is installed at the rear end of the turbocharger or in the middle of the exhaust pipe (under floor), and collects particulate matter (soot component) in the exhaust gas and prevents it from being released into the atmosphere. If the collection amount of the material increases to a certain degree or more, regeneration is performed by raising the exhaust gas temperature through combustion after the fuel injection.

그런데, 상기와 같은 연료 후분사에 의한 필터 재생이 반복되면, 연료가 엔진을 작동시키는데 소비되는 것이 아니라 필터 재생에 소모됨으로써 연비가 저하되는 문제점이 있었다.However, if the filter regeneration by the fuel post-injection as described above is repeated, fuel is not consumed to operate the engine but is consumed by the filter regeneration, thereby lowering fuel economy.

또한, 후분사에 의한 배기가스의 급격한 온도상승은 터보차저와 필터의 내구성을 떨어뜨리는 원인이 되고 있다.In addition, rapid temperature rise of exhaust gas by post-injection causes the durability of a turbocharger and a filter to fall.

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 연료 후분사를 이용하지 않고 필터를 재생시킴으로써 연비 및 터보차저와 필터의 내구성이 향상될 수 있도록 된 자동차의 매연여과필터 재생방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, and provides a method for regenerating the soot filtration filter of the vehicle to improve the fuel efficiency and durability of the turbocharger and filter by regenerating the filter without the use of fuel after injection. Has its purpose.

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

매연여과필터 전후단의 압력을 차압센서로부터 전달받아 그 차압을 계산하는 차압계산단계와;A differential pressure calculating step of receiving pressure from the differential pressure sensor before and after the soot filtration filter and calculating the differential pressure;

계산된 차압을 설정값과 비교하여 차압이 설정값 이하이면 필터재생이 필요하지 않고, 설정값 이상이면 필터재생이 필요한 것으로 판단하는 필터재생여부 판단단계와;A filter regeneration determination step of comparing the calculated differential pressure with a set value and determining that filter regeneration is not required if the differential pressure is less than or equal to the set value, and filter regeneration is necessary if the differential pressure is greater than or equal to the set value;

필터재생이 필요한 것으로 판단되면 과급압 제어를 중지하고, 웨이스트게이트밸브밸브를 개방하여 배기가스가 터빈을 거치지 않고 직접 매연여과필터로 흐르게 함으로써 고온의 배기가스에 의해 입자상 물질이 연소되어 제거되도록 하는 과급압 제어 중지 및 필터재생단계;If it is determined that the filter needs to be regenerated, the boost pressure control is stopped and the wastegate valve is opened so that the exhaust gas flows directly into the soot filtration filter without passing through the turbine so that particulate matter is burned and removed by the hot exhaust gas. Stopping the pressure control and regenerating the filter;

를 포함한다.It includes.

또한, 본 발명은 상기 과급압 제어 중지 및 필터재생단계의 수행중 매연여과필터 전후단의 차압을 지속적으로 체크하여 차압이 설정값 이하이면 필터의 재생이 완료된 것으로 판단하는 필터재생완료 판단단계와;In addition, the present invention includes a filter regeneration completion determination step of continuously checking the differential pressure before and after the soot filtration filter during the stop of the boost pressure control and the filter regeneration step to determine that the regeneration of the filter is completed when the differential pressure is less than or equal to the set value;

필터의 재생이 완료된 것으로 판단되면 중지되어 있던 과급압 제어를 재개하는 과급압제어 재개단계;A boost pressure control resumption step of resuming the boost pressure control which has been stopped when it is determined that the regeneration of the filter is completed;

를 더 포함하는 것을 특징으로 한다.It characterized in that it further comprises.

이하, 본 발명을 첨부된 예시도면을 참조하여 설명한다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

도 1은 자동차의 터보차저 및 매연여과필터의 설치상태도로서, 배기매니폴 드(10)의 배출구에 장착된 터보차저(20)에 매연여과필터(30)가 장착된 상태가 도시되어 있다.FIG. 1 is a view illustrating an installation state of a turbocharger and a soot filtration filter of a vehicle, in which a soot filtration filter 30 is mounted on a turbocharger 20 mounted at an outlet of an exhaust manifold 10.

또한, 도 2에 도시된 바와 같이, 상기 터보차저(20)는 배기가스가 배출되는 터빈(21)과 외기가 흡입되는 컴프레서(22)로 구성되어 있으며, 터빈(21)측 유입구에는 웨이스트게이트밸브(23)가 구비되어 있다.2, the turbocharger 20 includes a turbine 21 through which exhaust gas is discharged and a compressor 22 through which outside air is sucked, and a wastegate valve at an inlet of the turbine 21. 23 is provided.

상기 웨이스트게이트밸브(23)는 터빈(21)에 형성된 바이패스통로를 개폐하는 것으로, 바이패스량을 조절하여 터빈(21)의 회전속도를 조절함으로써 동축상에 연결된 컴프레서(22)의 회전속도를 조절하고, 이를 통해 엔진으로 공급되는 공기의 양을 조절할 수 있도록 되어 있으며, 컴프레서(22)의 하우징에 장착된 진공액츄에이터(50)의 작동로드(51)에 연결되어 개폐된다.The waste gate valve 23 opens and closes the bypass passage formed in the turbine 21. The waste gate valve 23 adjusts the bypass amount to adjust the rotation speed of the turbine 21 to adjust the rotation speed of the compressor 22 connected coaxially. And to adjust the amount of air supplied to the engine through it, it is connected to the operating rod 51 of the vacuum actuator 50 mounted on the housing of the compressor 22 is opened and closed.

한편, 상기 매연여과필터(30)에는 필터의 전방과 후단에 차압센서(41,42)가 설치되어 있어서, 필터 전/후단의 압력 정보가 ECU(80)로 입력된다.On the other hand, the soot filtration filter 30 is provided with differential pressure sensors 41 and 42 at the front and rear ends of the filter, so that pressure information before and after the filter is input to the ECU 80.

또한, 엔진에 의해 작동되는 진공펌프(60)가 설치되고, 상기 진공펌프(60)로부터 상기 진공액츄에이터(50)의 진공챔버(52)로 진공호스(65)가 연결되며, 상기 진공호스(65)에는 솔레노이드밸브(70)가 설치되고, 이 솔레노이드밸브(70)는 ECU(80)에 의해 작동 제어된다.In addition, a vacuum pump 60 operated by an engine is installed, and a vacuum hose 65 is connected to the vacuum chamber 52 of the vacuum actuator 50 from the vacuum pump 60, and the vacuum hose 65 ) Is provided with a solenoid valve 70, the solenoid valve 70 is operated controlled by the ECU (80).

따라서, 상기 ECU(80)가 상기 솔레노이드밸브(70)를 개방하면 진공펌프(60)의 진공압이 진공호스(65)를 매개로 상기 진공챔버(52)에 작용함으로써 진공액츄에이터(50)의 작동로드(51)가 후퇴하여 웨이스트게이트밸브(23) 오픈시킴으로써 바이패스통로를 개방할 수 있게 된다.Therefore, when the ECU 80 opens the solenoid valve 70, the vacuum pressure of the vacuum pump 60 acts on the vacuum chamber 52 via the vacuum hose 65 to operate the vacuum actuator 50. Bypassing the rod 51 and opening the wastegate valve 23, the bypass passage can be opened.

본 발명은 상기 ECU(80)에 의해 수행된다.The present invention is performed by the ECU 80.

도 3에 도시된 바와 같이, 상기 ECU(80)는 차압센서(41,42)들로부터 매연여과필터(30) 전/후단의 압력값을 전달받아 차압(ΔP)을 계산한다.(차압계산단계)As shown in FIG. 3, the ECU 80 calculates the differential pressure ΔP by receiving pressure values before and after the soot filtration filter 30 from the differential pressure sensors 41 and 42. )

이어, 상기 차압계산단계에서 계산된 차압을 설정값과 비교하여 필터재생여부를 판단한다.(필터재생여부 판단단계) 이 단계에서는 차압이 설정값 이하이면 아직 필터재생이 필요하지 않은 것으로 판단하고, 차압이 설정값 이상이면 입자상 물질의 포집량이 과도하여 필터재생이 필요한 것으로 판단한다.Subsequently, it is determined whether the filter is regenerated by comparing the differential pressure calculated in the differential pressure calculation step with the set value. (Filter regeneration status determination step) In this step, it is determined that the filter regeneration is not yet required if the differential pressure is less than or equal to the set value. If the differential pressure is greater than or equal to the set value, it is determined that the amount of trapped particulate matter is excessive and that filter regeneration is necessary.

상기 필터재생여부 판단단계에서 필터재생이 필요하지 않은 것으로 판단되면 기 실시되고 있는 과급압제어맵(boost control map)에 따른 과급압 제어를 계속 실시한다.If it is determined that the filter regeneration is not necessary in the filter regeneration determination step, the boost pressure control according to the boost control map that is being executed is continued.

반면, 상기 필터재생여부 판단단계에서 필터재생이 필요한 것으로 판단되면 상기 과급압제어맵에 따른 과급압 제어 수행을 중지하고, 상기 솔레노이드밸브(70)를 ON시켜 진공펌프(60)의 진공압을 진공액츄에이터(50)에 전달함으로써 웨이스트게이트밸브(23)를 개방한다.On the other hand, if it is determined that the filter regeneration is necessary in the filter regeneration determination step, the execution of the boost pressure control according to the boost pressure control map is stopped, and the solenoid valve 70 is turned on to vacuum the vacuum pressure of the vacuum pump 60. The wastegate valve 23 is opened by transmitting it to the actuator 50.

상기와 같이 웨이스트게이트밸브(23)가 개방되면 배기가스가 터빈(21)을 작동시키지 않고 바로 매연여과필터(30)로 유입되게 되는데, 이 배기가스는 터빈(21) 작동으로 에너지가 소비되지 않아 터빈(21)을 돌린 경우의 배기가스에 비하여 약 100~150℃ 높은 온도를 가지며, 따라서 매연여과필터(30)를 통과하면서 필터의 온도를 승온시켜 퇴적되어 있는 입자상 물질을 연소/제거하게 된다.(과급압 제어 중지 및 필터재생단계)When the wastegate valve 23 is opened as described above, the exhaust gas is directly introduced into the soot filtration filter 30 without operating the turbine 21. The exhaust gas does not consume energy due to the operation of the turbine 21. Compared with the exhaust gas when the turbine 21 is rotated, the temperature is about 100 to 150 ° C., and thus, the particulate matter accumulated is burned / removed by increasing the temperature of the filter while passing through the soot filtration filter 30. (Stop boost control and filter regeneration step)

한편, 상기 재생과정이 진행되는 동안에도 차압센서(41,42)를 통한 차압체크는 지속적으로 이루어지고 있으며, 재생의 진행을 통해 측정된 차압이 계속 설정값 이상이면 필터 재생이 더 필요한 것으로 판단하여 웨이스트게이트밸브 개방상태를 유지하고, 차압이 설정값 이하로 떨어지면 필터의 재생이 완료된 것으로 판단한다.(필터재생완료 판단단계)Meanwhile, the differential pressure check through the differential pressure sensors 41 and 42 is continuously performed even during the regeneration process. If the differential pressure measured through the regeneration continues to be equal to or greater than the preset value, it is determined that the filter regeneration is necessary. When the wastegate valve is kept open and the differential pressure falls below the set value, it is determined that the regeneration of the filter is completed (filter regeneration completion determination step).

상기 단계에서 필터 재생이 완료된 것으로 판단되면 중지되어 있던 과급압제어맵에 의한 과급압 제어를 재개한다.(과급압제어 재개단계)If it is determined in the above step that the filter regeneration is completed, the boost pressure control by the suspended boost pressure control map is resumed.

이후, 웨이스트게이트밸브(23)는 과급압 제어로직에 의해 정상적으로 개폐 조작된다.Thereafter, the wastegate valve 23 is normally opened and closed by the boost pressure control logic.

이와 같이 본 발명은 연료의 후분사 없이 웨이스트게이트밸브(23)를 개방하여 터빈(21) 작동으로 에너지가 소모되지 않은 고온의 배기가스를 매연여과필터(30)로 흘려보냄으로써 필터를 재생시키는 것이다.As described above, the present invention regenerates the filter by opening the wastegate valve 23 without post-injection of fuel and flowing high-temperature exhaust gas that is not consumed by the operation of the turbine 21 to the soot filtration filter 30. .

따라서, 후분사로 인한 연료의 소비가 발생하지 않으므로 연비가 향상된다.Therefore, fuel consumption due to post-injection does not occur, thereby improving fuel economy.

또한, 후분사로 인한 배기가스의 급격한 승온이 이루어지지 않으므로 승온된 배기가스가 통과하는 터빈(21)과 매연여과필터(30)가 열해를 입지 않게 되어 내구성이 향상된다.In addition, since the abrupt temperature rise of the exhaust gas due to post injection does not occur, the turbine 21 and the soot filtration filter 30 through which the heated exhaust gas passes do not suffer thermal damage, thereby improving durability.

이상 설명한 바와 같이 본 발명에 따르면, 후분사를 이용하지 않고 매연여과필터의 재생을 실시할 수 있게 됨으로써 후분사에 의한 연료소비 및 배기가스의 급격한 승온이 이루어지지 않으므로 연비가 향상됨과 더불어 터빈과 매연여과필터의 내구성이 향상되는 효과가 있다.As described above, according to the present invention, it is possible to regenerate the soot filtration filter without using after injection, so that fuel consumption and exhaust gas temperature are not rapidly increased by the after injection. The durability of the filtration filter is improved.

Claims (2)

매연여과필터 전후단의 압력을 차압센서로부터 전달받아 그 차압을 계산하는 차압계산단계와;A differential pressure calculating step of receiving pressure from the differential pressure sensor before and after the soot filtration filter and calculating the differential pressure; 계산된 차압을 설정값과 비교하여 차압이 설정값 이하이면 필터재생이 필요하지 않고, 설정값 이상이면 필터재생이 필요한 것으로 판단하는 필터재생여부 판단단계와;A filter regeneration determination step of comparing the calculated differential pressure with a set value and determining that filter regeneration is not required if the differential pressure is less than or equal to the set value, and filter regeneration is necessary if the differential pressure is greater than or equal to the set value; 필터재생이 필요한 것으로 판단되면 과급압 제어를 중지하고, 웨이스트게이트밸브밸브를 개방하여 배기가스가 터빈을 거치지 않고 직접 매연여과필터로 흐르게 함으로써 고온의 배기가스에 의해 입자상 물질이 연소되어 제거되도록 하는 과급압 제어 중지 및 필터재생단계;If it is determined that the filter needs to be regenerated, the boost pressure control is stopped and the wastegate valve is opened so that the exhaust gas flows directly into the soot filtration filter without passing through the turbine so that particulate matter is burned and removed by the hot exhaust gas. Stopping the pressure control and regenerating the filter; 를 포함하는 자동차의 매연여과필터 재생방법.A method of regenerating the soot filtration filter of a car comprising a. 청구항 1에 있어서, The method according to claim 1, 상기 과급압 제어 중지 및 필터재생단계의 수행중 매연여과필터 전후단의 차압을 지속적으로 체크하여 차압이 설정값 이하이면 필터의 재생이 완료된 것으로 판단하는 필터재생완료 판단단계와;A filter regeneration completion determination step of continuously checking the differential pressures at the front and rear ends of the soot filtration filter during the stop of the boost pressure control and the filter regeneration step, and determining that the regeneration of the filter is completed when the differential pressure is less than or equal to the set value; 필터의 재생이 완료된 것으로 판단되면 중지되어 있던 과급압 제어를 재개하는 과급압제어 재개단계;A boost pressure control resumption step of resuming the boost pressure control which has been stopped when it is determined that the regeneration of the filter is completed; 를 더 포함하는 것을 특징으로 하는 자동차의 매연여과필터 재생방법.The method of regenerating the soot filtration filter of a vehicle further comprising a.
KR1020080016325A 2008-02-22 2008-02-22 Cpf regeneration method of car KR100836301B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080016325A KR100836301B1 (en) 2008-02-22 2008-02-22 Cpf regeneration method of car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080016325A KR100836301B1 (en) 2008-02-22 2008-02-22 Cpf regeneration method of car

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR1020060122823 Division 2006-12-06

Publications (1)

Publication Number Publication Date
KR100836301B1 true KR100836301B1 (en) 2008-06-09

Family

ID=39770544

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080016325A KR100836301B1 (en) 2008-02-22 2008-02-22 Cpf regeneration method of car

Country Status (1)

Country Link
KR (1) KR100836301B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8158067B2 (en) 2009-09-02 2012-04-17 Hyundai Motor Company NOx reduction device for diesel vehicles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100373017B1 (en) * 2000-10-17 2003-02-25 기아자동차주식회사 Low speed function increasing system or control method for turbo charger
KR20050112707A (en) * 2004-05-28 2005-12-01 현대자동차주식회사 System and method for on board diagnosis of diesel particulate filter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100373017B1 (en) * 2000-10-17 2003-02-25 기아자동차주식회사 Low speed function increasing system or control method for turbo charger
KR20050112707A (en) * 2004-05-28 2005-12-01 현대자동차주식회사 System and method for on board diagnosis of diesel particulate filter

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
공개특허공보 제10-2005-0112707호
등록특허공보 제10-0373017호

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8158067B2 (en) 2009-09-02 2012-04-17 Hyundai Motor Company NOx reduction device for diesel vehicles

Similar Documents

Publication Publication Date Title
CN110671213B (en) Control system and control method for exhaust temperature of engine
JP4273911B2 (en) Vehicle exhaust purification system
JP5345301B2 (en) Diesel particle filter regeneration management
US7587893B2 (en) Particulate filter regeneration system for an internal combustion engine
JP5491028B2 (en) Method for an internal combustion engine with exhaust recirculation
WO2010073511A1 (en) Method of diagnosing regeneration failure of exhaust purifying device
CN101484684A (en) Exhaust gas recirculation device of internal combustion engine, and control method thereof
US8434299B2 (en) Strategy employing exhaust back-pressure for burning soot trapped by a diesel particulate filter
JP4161575B2 (en) Exhaust gas purification device for internal combustion engine
JP4556800B2 (en) Engine back pressure control device
EP2143903B1 (en) Exhaust gas after-treatment contamination detection system
KR100836301B1 (en) Cpf regeneration method of car
JPH0431614A (en) Exhaust gas treatment system
JP2010169052A (en) Exhaust emission control device for internal combustion engine
KR101807152B1 (en) System and method of preventing surge of vehicle
JP2002276340A (en) Exhaust emission control device and exhaust emission control method
JP3979099B2 (en) Exhaust gas purification device for internal combustion engine
JP4744529B2 (en) Device for estimating the amount of particulates present in automobile particulate filters
JP2003027919A (en) Exhaust emission control device of diesel engine having turbocharger
JP2006242072A (en) Exhaust emission control device for internal combustion engine
KR20180006425A (en) Method and device for determining load conditions of an exhaust gas particulate filter
CN104389656A (en) Diesel engine exhaust particle purifier
CN108952895B (en) Particle catcher regeneration system and method suitable for double-engine road sweeper
KR100552722B1 (en) a device and the method for a reduction NOx and PM of diesel engine
GB2477310A (en) Particle filter regeneration with a fault detection step

Legal Events

Date Code Title Description
A107 Divisional application of patent
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130531

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20140529

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20150529

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee