KR970037973A - Fault diagnosis device and method of car water temperature sensor - Google Patents

Fault diagnosis device and method of car water temperature sensor Download PDF

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Publication number
KR970037973A
KR970037973A KR1019950068403A KR19950068403A KR970037973A KR 970037973 A KR970037973 A KR 970037973A KR 1019950068403 A KR1019950068403 A KR 1019950068403A KR 19950068403 A KR19950068403 A KR 19950068403A KR 970037973 A KR970037973 A KR 970037973A
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South Korea
Prior art keywords
water temperature
sensor
warning
input
fault diagnosis
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KR1019950068403A
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Korean (ko)
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KR100260177B1 (en
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박성준
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전성원
현대자동차 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/731—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for autonomous vehicle travel
    • B60Q3/735—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for autonomous vehicle travel for preventing discomfort, e.g. for preventing motion sickness or for anticipating motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/05—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/302—Temperature sensors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

냉각수의 온도를 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 수온센서(10)와, 차량의 상태를 감지하기 위한 각종의 센서로 이루어져 있는 센서부(20)와, 운전자가 필요에 따라 자동차 수온센서의 고장 진단장치를 동작시키기 위한 동작 스위치(SW)와, 상기한 동작 스위치(SW)가 온되어 있는 경우에, 상기한 센서부(20)로부터 입력되는 신호에 따른 자동차 운행 조건마다 상기한 수온센서(10)로부터 입력되는 수온에 관한 데이터를 누적 저장시킨 뒤에, 누적 저장된 데이터의 평균치와 감지된 수온의 차이의 절대값이 기준치 이상인 경우에는 경고표시를 하고, 기준치 이하인 경우에는 경고표시를 해제하기 위한 제어신호를 출력하는 마이크로 컨트롤러(30)와, 상기한 마이크로 컨트롤러(30)의 출력단에 입력단이 연결되어 있는 경고 표시부(40)를 포함하여 이루어지며, 자동차가 동작되고 있는 상태에서 감지되는 수온을 각각의 조건별로 분류하여 누적하여 저장시켜 놓은 데이터를 이용하여 수온센서의 동작상태를 판단함으로써 판정의 신뢰도를 높일수가 있는 효과를 가진 자동차 수온센서의 고장 진단장치 및 방법을 제공한다.The water temperature sensor 10 for detecting the temperature of the coolant and converting it into an electrical signal and outputting it, the sensor unit 20 including various sensors for detecting the state of the vehicle, and the driver's water temperature as needed. The operation temperature SW for operating the fault diagnosis apparatus of the sensor and the above-described water temperature for each vehicle driving condition according to the signal input from the sensor unit 20 when the operation switch SW is turned on. After accumulating and storing data related to the water temperature input from the sensor 10, if the absolute value of the difference between the average value of the accumulated data and the detected water temperature is greater than or equal to the reference value, a warning is displayed. And a warning display unit 40 having an input terminal connected to the output terminal of the microcontroller 30 for outputting a control signal for the microcontroller 30. The water temperature of the car with the effect of increasing the reliability of the judgment by judging the operation state of the water temperature sensor by using the data stored by accumulating and storing the water temperature detected in the state of operation of the car by each condition. An apparatus and method for diagnosing a failure of a sensor are provided.

Description

자동차 수온센서의 고장 진단장치 및 방법Fault diagnosis device and method of car water temperature sensor

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

제1도는 이 발명의 실시예에 따른 자동차 수온센서의 고장 진단장치의 구성회로도이다,1 is a configuration circuit diagram of a fault diagnosis apparatus for a vehicle water temperature sensor according to an embodiment of the present invention.

제2도는 이 발명의 실시예에 따른 자동차 수온센서의 고장 진단방법의 동작순서도이다.2 is a flowchart illustrating a method of diagnosing a failure of a vehicle water temperature sensor according to an exemplary embodiment of the present invention.

Claims (5)

냉각수의 온도를 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 수온센서(10)와, 차량의 상태를 감지하기 위한 각종의 센서로 이루어져 있는 센서부(20)와, 운전자가 필요에 따라 자동차 수온센서의 고장 진단장치를 동작시키기 위한 동작 스위치(SW)와, 상기한 동작 스위치(SW)가 온되어 있는 경우에, 상기한 센서부(20)로부터 입력되는 신호에 따른 자동차 운행 조건마다 상기한 수온센서(10)로부터 입력되는 수온에 관한 데이터를 누적 저장시킨 뒤에, 누적 저장된 데이터의 평균치와 감지된 수온의 차이의 절대값이 기준치 이상인 경우에는 경고표시를 하고, 기준치 이하인 경우에는 경고표시를 해제하기 위한 제어신호를 출력하는 마이크로 컨트룰러(30)와, 상기한 마이크로 컨트롤러(30)의 출력단에 입력단이 연결되어 있는 경고 표시부(40)를 포함하여 이루어지는 것을 특징으로 하는 자동차 수온센서의 고장진단장치.The water temperature sensor 10 for detecting the temperature of the coolant and converting it into an electrical signal and outputting it, the sensor unit 20 including various sensors for detecting the state of the vehicle, and the driver's water temperature as needed. The operation temperature SW for operating the fault diagnosis apparatus of the sensor and the above-described water temperature for each vehicle driving condition according to the signal input from the sensor unit 20 when the operation switch SW is turned on. After accumulating and storing data related to the water temperature input from the sensor 10, if the absolute value of the difference between the average value of the accumulated data and the detected water temperature is greater than or equal to the reference value, a warning is displayed. Microcontroller 30 for outputting a control signal for the; and a warning display unit 40 is connected to the output terminal of the microcontroller 30, the input terminal Fault diagnosis apparatus for a water temperature sensor car, characterized in that W is made. 제1항에 있어서, 상기한 마이크로 컨트롤러(30)는 내부에 애널로그/디지틀 컨버터와 메모리가 내장되어 있는 것을 특징으로 하는 자동차 수온센서의 고장 진단장치.2. The apparatus of claim 1, wherein the microcontroller (30) has an analog / digital converter and a memory therein. 제1항에 있어서, 상기한 경고 표시부(40)는, 운전자에게 경고음을 청각적으로 발생시키기 위한 스피커를 포함하여 이루어지는 것을 특징으로 하는 자동차 수온센서의 고장 진단장치.The apparatus of claim 1, wherein the warning display unit (40) comprises a speaker for generating an audible warning sound to the driver. 제1항에 있어서, 상기한 경고 표시부(40)는 운전자에게 빨간색의 경고신호를 시각적으로 발생시키기 위한 발광 다이오드를 포함하여 이루어지는 것을 특징으로 하는 자동차 수온센서의 고장 진단장치.The apparatus of claim 1, wherein the warning display unit comprises a light emitting diode for visually generating a red warning signal to the driver. 전원이 인가되면 동작이 시작되는 단계(S10)와, 모든 메모리 변수를 초기화시키는 단계(S20)와, 동작 스위치로부터 입력되면 신호를 읽어들여 동작스위치가 온되었는지를 판단하는 단계(S30)와, 동작 스위치가 온된 경우에 각종의 센서로부터 입력되는 신호를 읽어들여 엔진의 상태를 감지하는 단계(S40)와, 수온센서로부터 입력되는 신호를 읽어들여 수온을 감지하는 단계(S50)와, 감지된 수온 데이터를 조건별로 분류하여 누적 저장시키는 단계(S60)와, 누적 저장된 데이터의 평균치와감지된 수온의 차이의 절대값이 기준치 이상이 되는지를 판단하는 단계(S70)와, 누적 저장된 데이터의 평균치와 감지된 수온의 차이의 절대값이 기준치 이상이 되는 경우에 경고표시를 하는 단계(S80)와, 누적 저장된 데이터의 평균치와 감지된 수온의 차이의 절대값이 기준치 이하가 되는 경우에 경고표시를 해제하는 단계(S90)를 포함하여 이루어지는 것을 특징으로 하는 자동차 수온센서의 고장 진단방법.Operation is started when power is applied (S10), initializing all memory variables (S20), reading from a signal when input from an operation switch, and determining whether the operation switch is on (S30), and When the switch is turned on to read the signals input from the various sensors to detect the state of the engine (S40), and reading the signal input from the water temperature sensor to detect the water temperature (S50), and the detected water temperature data Classifying and storing the data according to conditions (S60), determining whether an absolute value of the difference between the average value of the accumulated data and the detected water temperature is greater than or equal to the reference value (S70), and the average value of the accumulated and stored data If the absolute value of the difference in water temperature is greater than the reference value step (S80) of displaying a warning, the absolute value of the difference between the average value of the cumulatively stored data and the detected water temperature is the reference value Fault diagnosis method of a car temperature sensor comprising the steps (S90) to turn off the warning display when a ha. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950068403A 1995-12-30 1995-12-30 Water temperature sensor of a car KR100260177B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040001638A (en) * 2002-06-28 2004-01-07 현대자동차주식회사 Apparatus for diagnosis failure of water temperature sensor on vehicle and method thereof
KR20160015057A (en) 2014-07-30 2016-02-12 김종옥 Method for coating titanium oxide on the porous media and porous media coated titanium oxide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020095984A (en) * 2001-06-19 2002-12-28 현대자동차주식회사 Method for water temperature sensor fail detection of engine in vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0149352B1 (en) * 1993-12-14 1998-10-01 전성원 A sensing recovery method in a defective proving for an engine coolant temperature sensing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040001638A (en) * 2002-06-28 2004-01-07 현대자동차주식회사 Apparatus for diagnosis failure of water temperature sensor on vehicle and method thereof
KR20160015057A (en) 2014-07-30 2016-02-12 김종옥 Method for coating titanium oxide on the porous media and porous media coated titanium oxide

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