KR970044430A - Control method of diesel particulate aftertreatment - Google Patents

Control method of diesel particulate aftertreatment Download PDF

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Publication number
KR970044430A
KR970044430A KR1019950065356A KR19950065356A KR970044430A KR 970044430 A KR970044430 A KR 970044430A KR 1019950065356 A KR1019950065356 A KR 1019950065356A KR 19950065356 A KR19950065356 A KR 19950065356A KR 970044430 A KR970044430 A KR 970044430A
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KR
South Korea
Prior art keywords
heater
temperature
filter
low
determined
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Application number
KR1019950065356A
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Korean (ko)
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KR100231559B1 (en
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최정남
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한승준
기아자동차 주식회사
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Priority to KR1019950065356A priority Critical patent/KR100231559B1/en
Publication of KR970044430A publication Critical patent/KR970044430A/en
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Publication of KR100231559B1 publication Critical patent/KR100231559B1/en

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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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

본 발명은 디젤 엔진에서 배출되는 입자상 물질을 유얼 타입의 후처리장치를 통해 효과적으로 제거하여 신뢰성 및 성능을 향상시킬 수 있게 하는 디젤 매연 후처리장치의 제어방법에 관한 것이다. 본 발명은 초기화이후 차속과 부하를 감지함과 더불어 항벽 맵데이타를 독출한 후 필터전 압력을 감지하여 필터전 압력이 설정압력보다 높으며 재생동작을 수행하고, 재생동작을 수행하는 단계는 히터를 온시키고 이로부터 히터온도와 필터 온도를 감지하여 필터온도가 1200℃보다 높거나 히터온도가 450℃보다 낮으면 히터를 오프시킨후, 일정시간을 경과한 다음 필터온도가 1200℃보다 낮고 히터온도가 430℃보다 낮으면 히터를 다시 온시킨 상태에서 일정시간 경과후 이를 제1설정치와 비교하는 단계, 상기 비교결과 제1설정치가 낮다고 판단되면 다시 제2설정치와 비교하여 제2설정치보다 낮다고 판단되면 히터온도와 필터온도를 감지하여 필터온도가 1200℃보다 높거나 히터 온도가 660℃보다 낮으면 히터를 오프시킨후, 일정 시간을 경과한 다음 필터온도가 1200℃보다 낮고 히터온도가 630℃보다 낮으면 히터를 다시 온시킨 상태에서 일정심간 경과후 이를 다시 제2설정치과 비교하는 단계로 이루어진 발명임.The present invention relates to a control method of a diesel particulate aftertreatment apparatus which can effectively remove the particulate matter discharged from a diesel engine through an after-treatment apparatus to improve reliability and performance. The present invention detects the vehicle speed and load after initialization, and also reads the anti-map map data, detects the pre-filter pressure by detecting the pre-filter pressure, and performs the regeneration operation, the regeneration operation, the step of performing the regeneration operation to turn on the heater If the filter temperature is higher than 1200 ℃ or the heater temperature is lower than 450 ℃, turn off the heater. After a certain time, the filter temperature is lower than 1200 ℃ and the heater temperature is 430. When the temperature is lower than ℃, comparing the heater with the first set point after a predetermined time in the state of turning on the heater again, and if the first set point is determined to be low as a result of the comparison, the heater temperature is determined to be lower than the second set point again. If the filter temperature is higher than 1200 ℃ or the heater temperature is lower than 660 ℃ by detecting the filter temperature, turn off the heater, and then Degrees invention being made of a step of a low heating temperature is low, certain comparison simgan after this, again the second set of dental in a state where turning on the heating again more than 630 ℃ 1200 ℃.

Description

디젤 매연 후처리장치의 제어방법Control method of diesel particulate aftertreatment

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

제1도는 본 발명의 구현을 위한 디젤 매연 후처리장치의 개략적 구성도1 is a schematic diagram of a diesel particulate after-treatment apparatus for implementing the present invention.

제2도는 본 발명에 따른 디젤 매연 후처리장치의 제어방법을 설명하기 위한 도면이다.2 is a view for explaining a control method of the diesel particulate after-treatment apparatus according to the present invention.

Claims (1)

초기화이후 차속과 부하를 감지함과 더불어 압력 맵데이타를 독출한 후 필터전 압력을 감지하여 필터전 압력이 설정압력보다 높으면 재생동작을 수행하고, 재생동작을 수행하는 단계는 히터를 온시키고 이로부터 히터온도와 필터온도를 감지하여 필터온도가 1200℃보다 높거나 히터온도가 450℃보다 낮으면 히터를 오프시킨후, 일정시간을 경과한 다음 필터온도가 1200℃보다 낮고 히터온도가 430℃보다 낮으면 히터를 다시 온시킨 상태에서 일정시간 경과후 이를 제1설정치와 비교하는 단계, 상기 비교결과 제1설정치가 낮다고 판단되면 다시 제2설정치와 비교하여 제2설정치보다 낮다고 판단되면 히터온도와 필터온도를 감지하여 필터온도가 1200℃보다 높거나 히터 온도가 660℃보다 낮으면 히터를 오프시킨후, 일정 시간을 경과한 다음 필터온도가 1200℃보다 낮고 히터온도가 630℃보다 낮으면 히터를 다시 온시킨 상태에서 일정심간 경과후 이를 다시 제2설정치과 비교하는 단계로 이루어진 디젤 매연 후처리장치의 제어방법.After initialization, it detects the vehicle speed and load, reads out the pressure map data, detects the pre-filter pressure, and performs the regeneration operation when the pre-filter pressure is higher than the set pressure. Detects the heater temperature and filter temperature and turns off the heater if the filter temperature is higher than 1200 ℃ or the heater temperature is lower than 450 ℃. After a certain time, the filter temperature is lower than 1200 ℃ and the heater temperature is lower than 430 ℃. If it is determined that the first setpoint is low after a predetermined time in the state of turning on the heater again, and the first setpoint is determined to be low, the heater temperature and the filter temperature are determined to be lower than the second setpoint again. If the filter temperature is higher than 1200 ℃ or the heater temperature is lower than 660 ℃, the heater is turned off. After a certain time, the filter temperature is 1200 ℃. If the lower and the heater temperature is lower than 630 ℃ after a certain period of time in the state of turning on the heater again and compares it with the second set point control method of the diesel particulate after-treatment device.
KR1019950065356A 1995-12-29 1995-12-29 Control method of diesel engine smoke treatment apparatus KR100231559B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950065356A KR100231559B1 (en) 1995-12-29 1995-12-29 Control method of diesel engine smoke treatment apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950065356A KR100231559B1 (en) 1995-12-29 1995-12-29 Control method of diesel engine smoke treatment apparatus

Publications (2)

Publication Number Publication Date
KR970044430A true KR970044430A (en) 1997-07-26
KR100231559B1 KR100231559B1 (en) 1999-11-15

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Application Number Title Priority Date Filing Date
KR1019950065356A KR100231559B1 (en) 1995-12-29 1995-12-29 Control method of diesel engine smoke treatment apparatus

Country Status (1)

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KR (1) KR100231559B1 (en)

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KR100231559B1 (en) 1999-11-15

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