KR950029552A - Fault determination device and method of needle lift detection device - Google Patents

Fault determination device and method of needle lift detection device Download PDF

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Publication number
KR950029552A
KR950029552A KR1019940007182A KR19940007182A KR950029552A KR 950029552 A KR950029552 A KR 950029552A KR 1019940007182 A KR1019940007182 A KR 1019940007182A KR 19940007182 A KR19940007182 A KR 19940007182A KR 950029552 A KR950029552 A KR 950029552A
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KR
South Korea
Prior art keywords
needle lift
state
signal
detection means
engine
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Application number
KR1019940007182A
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Korean (ko)
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KR0180394B1 (en
Inventor
유성일
Original Assignee
전성원
현대자동차 주식회사
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Priority to KR1019940007182A priority Critical patent/KR0180394B1/en
Publication of KR950029552A publication Critical patent/KR950029552A/en
Application granted granted Critical
Publication of KR0180394B1 publication Critical patent/KR0180394B1/en

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Classifications

    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
    • F02D41/345—Controlling injection timing
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

디젤기관의 분사시기를 보정하기 위해 장착되어 있는 니들 리프트 감지장치의 상태가 비정상 상태일 경우에 신속하게 운전자가 알 수 있도록 하고 니들 리프트 감지장치의 상태가 정상상태로 전환되기 전까지 엔진의 회전수 감지신호를 이용하여 연료의 분사시기 보정동작을 실행할 수 있도록 하는 니들 리프트 감지장치의 고장 판단장치 및 그 방법을 제공하기 위하여, 엔진의 1번 실린더 분사노즐의 동작상태를 감지하여 해당하는 신호를 출력하는 니들 리프트 감지수단과; 엔진의 회전수를 감지하여 해당하는 신호를 출력하는 엔진 회전수 감지수단과; 상기 니들 리프트 감지수단과 엔진 회전수 감지수단에 연결되어, 니들 리프트 감지수단에서 인가되는 신호의 상태가 설정시간 이상 지속될 경우에, 니들 리프트 감지수단의 상태를 비정상 상태로 판단하여 경고신호를 출력하고, 엔진회전수 감지신호를 설정된 만큼 위상변화시켜 니들 리프트 신호를 이용하여 엔진의 분사시기를 제어하는 엔진 제어수단과; 상기 엔진 제어수단과 연결되어, 상기 엔진 제어수단에서 인가되는 경고신호에 따라 동작상태가 가변되어 니들 리프트 감지수단의 상태를 외부에서 판단할 수 있도록 하는 경고수단으로 이루어져 있다.In order to compensate the injection timing of the diesel engine, the driver can be quickly informed when the state of the needle lift detection device is abnormal, and the engine speed is detected until the state of the needle lift detection device is returned to the normal state. In order to provide a failure determination device and a method of the needle lift detection device that can perform a fuel injection timing correction operation by using a signal, it detects the operation state of the cylinder 1 injection nozzle of the engine and outputs a corresponding signal. Needle lift detecting means; Engine speed detection means for sensing an engine speed and outputting a corresponding signal; It is connected to the needle lift detection means and the engine speed detection means, when the state of the signal applied from the needle lift detection means lasts more than a set time, the state of the needle lift detection means is determined to be an abnormal state and outputs a warning signal. Engine control means for controlling the injection timing of the engine using the needle lift signal by changing the engine speed detection signal by a phase; It is connected to the engine control means, the operating state is changed in accordance with the warning signal applied from the engine control means consists of a warning means to determine the state of the needle lift detection means from the outside.

Description

니들 리프트 감지장치의 고장 판단장치 및 그 방법Fault determination device and method of needle lift detection device

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

제1도는 이 발명의 실시예에 따른 니들 리프트 감지장치의 고정 판단장치의 블록도, 제2도는 이 발명의 실시예에 따른 니들 리프트 감지장치의 고장 판단방법의 동작 순서도이다.1 is a block diagram of a fixed determination device of the needle lift detection apparatus according to an embodiment of the present invention, Figure 2 is a flow chart of the operation of the failure determination method of the needle lift detection apparatus according to an embodiment of the present invention.

Claims (2)

엔진의 1번 실린더 분사노즐의 동작상태를 감지하여 해당하는 신호를 출력하는 니들 리프트 감지수단과; 엔진의 회전수를 감지하여 해당하는 신호를 출력하는 엔진 회전수 감지수단과; 상기 니들 리프트 감지수단과 엔진 회전수 감지수단에 연결되어, 니들 리프트 감지수단에서 인가되는 신호의 상태가 설정시간 이상 지속될 경우에, 니들 리프트 감지수단의 상태를 비정상 상태로 판단하여 경고신호를 출력하고, 엔진 회전수 감지신호를 설정된 만큼 위상변화시켜 니들 리프트 신호로 이용하여 엔진의 분사시기를 제어하는 엔진 제어수단과; 상기 엔진 제어수단과 연결되어, 상기 엔진 제어수단에서 인가되는 경고신호에 따라 동작상태가 가변되어 니들 리프트 감지수단의 상태를 외부에서 판단할 수 있도록 하는 경고수단으로 이루어져 있는 것을 특징으로 하는 니들 리프트 감지장치의 고장판단장치.Needle lift detection means for detecting an operation state of the first cylinder injection nozzle of the engine and outputting a corresponding signal; Engine speed detection means for sensing an engine speed and outputting a corresponding signal; It is connected to the needle lift detection means and the engine speed detection means, when the state of the signal applied from the needle lift detection means lasts more than a set time, the state of the needle lift detection means is determined to be an abnormal state and outputs a warning signal. Engine control means for controlling the injection timing of the engine by changing the phase of the engine speed detection signal as set by the needle lift signal; Needle lift detection, characterized in that it is connected to the engine control means, the operating means is changed in accordance with the warning signal applied from the engine control means to determine the state of the needle lift detection means from the outside Device for determining fault. 니들 리프트 감지수단에서 인가되는 신호를 판독하여 신호의 상태를 판단하는 단계와; 전상태에서 판단된 니들 리프트 감지수단의 상태가 가변되지 않을 경우에, 같은 상태를 유지하는 유지시간과 설정시간을 비교 판단하는 단계와; 같은 상태를 유지하는 신호의 유지시간이 설정시간 이상일 경우엔, 니들 리프트 감지수단의 상태를 비정상 상태로 판단하고, 경고수단을 구동시킬 수 있는 구동신호를 출력하는 단계와; 엔진 회전수 감지 수단에서 인가되는 신호를 판독하여 설정된 만큼 신호의 위상을 가변시켜 니들 리프트 감지신호로 이용하여 연료의 분사시기를 보정하는 단계로 이루어져 있는 것을 특징으로 하는 니들 리프트 감지장치의 고장 판단방법.Determining a state of a signal by reading a signal applied from the needle lift detecting means; Comparing and determining the holding time and the setting time for maintaining the same state when the state of the needle lift detecting means determined in the previous state is not changed; If the holding time of the signal maintaining the same state is equal to or longer than the set time, determining the state of the needle lift detecting means as an abnormal state and outputting a driving signal capable of driving the warning means; The method of determining the failure of the needle lift detection device, comprising the steps of correcting the injection timing of the fuel using the needle lift detection signal by changing the phase of the signal as set by reading the signal applied from the engine speed detection means. . ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019940007182A 1994-04-06 1994-04-06 Fault diagnosis apparatus of needle lift sensor KR0180394B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940007182A KR0180394B1 (en) 1994-04-06 1994-04-06 Fault diagnosis apparatus of needle lift sensor

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Application Number Priority Date Filing Date Title
KR1019940007182A KR0180394B1 (en) 1994-04-06 1994-04-06 Fault diagnosis apparatus of needle lift sensor

Publications (2)

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KR950029552A true KR950029552A (en) 1995-11-22
KR0180394B1 KR0180394B1 (en) 1999-03-20

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Publication number Priority date Publication date Assignee Title
CN104238530A (en) * 2014-10-15 2014-12-24 南京化工职业技术学院 Sensor fault diagnosis technology-based interlock alarm system

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