KR950019058A - Detection signal compensation method in case of failure of engine coolant temperature sensor - Google Patents
Detection signal compensation method in case of failure of engine coolant temperature sensor Download PDFInfo
- Publication number
- KR950019058A KR950019058A KR1019930027565A KR930027565A KR950019058A KR 950019058 A KR950019058 A KR 950019058A KR 1019930027565 A KR1019930027565 A KR 1019930027565A KR 930027565 A KR930027565 A KR 930027565A KR 950019058 A KR950019058 A KR 950019058A
- Authority
- KR
- South Korea
- Prior art keywords
- coolant temperature
- state
- temperature detection
- engine coolant
- signal
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2025/00—Measuring
- F01P2025/08—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2037/00—Controlling
Landscapes
- 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)
Abstract
엔진의 냉각수 온도를 감지하여 해당하는 신호를 출력하는 엔진 냉각수온 감지장치에 이상이 발생할 경우에 냉각수온의 감지신호를 고정값까지 해당 기울기만큼 서서히 변화시킬 수 있도록 하기 위한 엔진 냉각수온 감지장치 고장 판정시 감지신호 보상방법을 제공하기 위하여, 엔진 냉각수온 감지부(1)에서 인가되는 신호를 판독하여 이용 가능한 디지탈 상태로 변환시킨 후, 인가되는 신호의 상태가 정상상태인지를 판단하는 단계와; 냉각수온 감지부(1)에서 인가되는 신호의 상태가 비정상상태일 경우에, 냉각수온 감지부(1)의 상태를 고장상태로 판단하여 고장이 발생하기 직전의 감지신호로 냉각수온 감지부(1)의 감지신호를 판단하고 고장 발생횟수를 비교하는 단계와; 고장발생 횟수가 설정횟수 이상일 경우에 엔진 냉각수온 감지부(1)의 상태를 고장상태로 판정하는 단계와; 엔진 냉각수온 감지부(1)의 상태가 고장상태로 판정될 경우에, 전상태에서 판단된 엔진 냉각수온 감지값에서 설정된 기울기만큼 변화시켜 보상값을 산출하고, 산출된 값으로 엔진 냉각수온 감지신호를 보상하여 해당 제어신호를 액츄에이터(3)로 출력하는 단계로 이루어져 있다.Defective determination of engine coolant temperature detection device for changing the coolant temperature detection signal by a corresponding slope to a fixed value when an abnormality occurs in the engine coolant temperature detection device that detects the coolant temperature of the engine and outputs a corresponding signal. In order to provide a time detection signal compensation method, the step of determining whether the state of the applied signal is normal after reading the signal applied from the engine coolant temperature sensing unit 1 and converting it into an available digital state; When the state of the signal applied from the coolant temperature detection unit 1 is in an abnormal state, the coolant temperature detection unit 1 determines the state of the coolant temperature detection unit 1 as a failure state and uses the coolant temperature detection unit 1 as a detection signal immediately before a failure occurs. Judging the detection signal and comparing the number of occurrences of the failure; Determining a state of the engine coolant temperature detecting unit 1 as a failure state when the number of occurrences of the failure is more than a set number of times; When the state of the engine coolant temperature detection unit 1 is determined to be a fault state, the engine coolant temperature detection signal is calculated by changing the slope by the set slope from the engine coolant temperature detection value determined in the previous state, and calculating the engine coolant temperature detection signal using the calculated value. Compensating the control signal and outputs the corresponding control signal to the actuator (3).
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 이 발명의 실시예에 따른 엔진 냉각수온 감지장치 고장 판정시 감지신호 보산장치의 블럭도.1 is a block diagram of a detection signal estimator in determining an engine coolant temperature sensor failure according to an embodiment of the present invention.
제2도는 이 발명의 실시예에 따른 엔진 냉각수온 감지장치 고장 판정시 감지신호 보상방법의 동작 순서도.2 is an operation flowchart of a detection signal compensation method when determining a failure of an engine coolant temperature sensor according to an exemplary embodiment of the present invention.
제3도는 이 발명의 실시예에 따른 엔진 냉각수온 감지장치 고장 판정시 보상신호의 파형도이다.3 is a waveform diagram of a compensation signal when determining a failure of an engine coolant temperature sensor according to an exemplary embodiment of the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930027565A KR0149352B1 (en) | 1993-12-14 | 1993-12-14 | A sensing recovery method in a defective proving for an engine coolant temperature sensing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930027565A KR0149352B1 (en) | 1993-12-14 | 1993-12-14 | A sensing recovery method in a defective proving for an engine coolant temperature sensing system |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950019058A true KR950019058A (en) | 1995-07-22 |
KR0149352B1 KR0149352B1 (en) | 1998-10-01 |
Family
ID=19370827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930027565A KR0149352B1 (en) | 1993-12-14 | 1993-12-14 | A sensing recovery method in a defective proving for an engine coolant temperature sensing system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0149352B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100260177B1 (en) * | 1995-12-30 | 2000-08-01 | 정몽규 | Water temperature sensor of a car |
-
1993
- 1993-12-14 KR KR1019930027565A patent/KR0149352B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100260177B1 (en) * | 1995-12-30 | 2000-08-01 | 정몽규 | Water temperature sensor of a car |
Also Published As
Publication number | Publication date |
---|---|
KR0149352B1 (en) | 1998-10-01 |
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