KR20060015780A - Rationality check method of oil temperature sensor - Google Patents

Rationality check method of oil temperature sensor Download PDF

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KR20060015780A
KR20060015780A KR1020060011585A KR20060011585A KR20060015780A KR 20060015780 A KR20060015780 A KR 20060015780A KR 1020060011585 A KR1020060011585 A KR 1020060011585A KR 20060011585 A KR20060011585 A KR 20060011585A KR 20060015780 A KR20060015780 A KR 20060015780A
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South Korea
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oil temperature
temperature
temperature sensor
neglect
time
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KR1020060011585A
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Korean (ko)
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최영선
조성택
윤윤상
김형규
심장선
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주식회사 케피코
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Priority to KR1020060011585A priority Critical patent/KR20060015780A/en
Publication of KR20060015780A publication Critical patent/KR20060015780A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G01K15/007—Testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2205/00—Application of thermometers in motors, e.g. of a vehicle
    • G01K2205/02—Application of thermometers in motors, e.g. of a vehicle for measuring inlet gas temperature

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Transmission Device (AREA)

Abstract

본 발명은 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법에 관한 것으로, 특히 차량용 변속기오일온도의 타당성을 검출하여 유온센서 장시간 방치로 인한 결함에 의한 변속기의 다른 고장 판단에 대한 정확성을 기하고, 각 운전영역에 따른 오일온도를 추정하여 센서 고장시 대체오일온도를 계산하여 변속충격을 저감시킬 수 있도록 한 것이다.The present invention relates to a method for detecting a defect due to long-term neglect of an oil temperature sensor of an automatic transmission. In particular, the validity of a transmission oil temperature for a vehicle is detected to determine accuracy of another fault determination of a transmission due to a fault caused by a long-term neglect of an oil temperature sensor. It is possible to reduce the shift shock by estimating the oil temperature in each operating area and calculating the replacement oil temperature in case of sensor failure.

자동변속기가 유압제어장치에 있어서, 엔진 정지후 방치시간에 따른 오일온도의 하강시, 규정온도이상으로 계측되는 오일온도를 검출하여 유온센서의 장시간 방치로 인한 결함여부를 판단하는 유온센서결함여부판단수단으로 구성되고, 상기한 유온센서결함여부판단수단에 의해 유온센서의 장시간 방치로 인한 결함여부를 검출하여 유온센서의 동작에 이상이 발생하였을 경우, 유온센서 이상 진단신호를 정확하게 처리함으로써 오제어를 방지하여 변속클러치의 제어가 운전자의 운행감 저하를 발생하지 않도록 한 것임.In the hydraulic control device of the automatic transmission, when the oil temperature decreases according to the idle time after the engine stops, the oil temperature sensor detects the oil temperature measured above the specified temperature and judges whether the oil temperature sensor is defective due to the long-time standing of the oil temperature sensor. If the abnormality occurs in the operation of the oil temperature sensor by detecting the fault of the oil temperature sensor for a long time by the oil temperature sensor fault determining means, the error control is performed by accurately processing the oil temperature sensor fault diagnosis signal. By preventing the shift clutch, the driver's feeling of driving is not reduced.

유온센서, 자동변속기 Oil temperature sensor, automatic transmission

Description

자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법{rationality check method of oil temperature sensor}Oil temperature sensor of automatic transmission {rationality check method of oil temperature sensor}

도 1은 본 발명에 따른 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법 개략적인 구성을 나타낸 블록도이고,1 is a block diagram showing a schematic configuration of a defect detection method due to long-term storage of the oil temperature sensor of the automatic transmission according to the present invention;

도 2는 본 발명의 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법에 있어 엔진 정지후 방치시간에 따른 오일온도를 검출하여 유온센서의 결함여부를 판단하는 유온센서결함여부판단수단을 나타낸 흐름도이다.Figure 2 is a flow chart showing the oil temperature sensor fault determination means for determining the fault of the oil temperature sensor by detecting the oil temperature according to the idle time after the engine stop in the fault detection method of the oil temperature sensor for a long time of the automatic transmission of the present invention. .

<도면의 주요부분에 대한 설명> <Description of main parts of drawing>

10: 엔진회전수검출부 20: 변속기입력축회전수검출부10: engine speed detection unit 20: transmission input shaft speed detection unit

30: 유온검출부 40: 변속단검출부30: oil temperature detection unit 40: shift stage detection unit

50: 변속제어기(TCU; Transmission Control Unit)50: Transmission Control Unit (TCU)

60: 차속검출부 70:변속클러치60: vehicle speed detection unit 70: shift clutch

본 발명은 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법에 관한 것으로, 더욱 상세하게는 차량용 변속기오일온도의 타당성을 검출하여 센서결함에 의한 변속기의 다른 고장 판단에 대한 정확성을 기하고, 각 운전영역에 따른 오일온도를 추정하여 센서 고장시 대체오일온도를 계산하여 변속충격을 저감시킬 수 있도록 한 것이다.The present invention relates to a method for detecting defects due to long-term neglect of an oil temperature sensor of an automatic transmission, and more particularly, to determine the validity of the transmission oil temperature for a vehicle to determine accuracy of other failures of the transmission due to sensor defects, and for each operation. By estimating the oil temperature according to the area, it is possible to reduce shift shock by calculating the replacement oil temperature in case of sensor failure.

차량에는 다양한 센서가 엔진 및/또는 차량의 제어하는 엔진 작동 상태를 검출하여 엔진 개시직후 또는 엔진 유동체 압력이 급속하게 변동하는 여타의 과도(transient)상태 도중에 고장경보(false alarms)를 내도록 되어 있다.The vehicle is configured with various sensors to detect engine and / or engine operating conditions of the vehicle and to generate false alarms immediately after engine start or during other transient states in which the engine fluid pressure changes rapidly.

그리고 특정 엔진 또는 차량 작동 상태에 따라 다르지만, 특히 자동변속기가 장착된 차량은 오일온도 및 점도 변화특성에 영향을 받게 되므로 변속제어를 위한 오일을 유온센서로 측정하여 상기 결과에 근거로 변속유압제어에 사용하고 있다.Although it depends on the specific engine or vehicle operating condition, especially the vehicle equipped with automatic transmission is affected by the oil temperature and viscosity change characteristics, the oil for shift control is measured by the oil temperature sensor, I use it.

따라서 변속기에는 변속제어기(TCU; Transmission Control Unit)를 통해 변속기의 모든 동작 제어할 수 있도록 밸브바디(valve body)에 유로를 제어하는 솔레노이드밸브(solenoid valve)와 함께 유온센서가 구비되어 상기 유온센서가 자동변속기의 오일온도를 측정하여 솔레노이드에 가해지는 제어신호를 조정함으로써 오일의 온도 변화에 따른 유압 보정으로 원하는 변속감을 얻도록 되어 있다.Therefore, the transmission is equipped with a solenoid valve for controlling the flow path in the valve body to control all the operations of the transmission through a transmission control unit (TCU; the oil temperature sensor is provided with the oil temperature sensor By measuring the oil temperature of the automatic transmission and adjusting the control signal applied to the solenoid, it is possible to obtain a desired shift feeling by hydraulic correction according to the oil temperature change.

하지만 종래에는 변속기의 오일온도를 검출하는 유온센서의 결함판단이 전기적인 고장에만 국한되고 있어 상기 유온센서의 결함에 의한 오동작에도 운전자가 쉽게 대처할 수 없게 된다.However, in the related art, the fault determination of the oil temperature sensor detecting the oil temperature of the transmission is limited only to an electrical failure, so that the driver cannot easily cope with a malfunction caused by the defect of the oil temperature sensor.

또한 밸브내의 오일온도에 대한 타당성을 검출하는 기능이 없으므로, 상기 센서결함으로 인한 틀린 정보가 각종 자동 변속기의 고장을 판단하는 주변 조건으로 사용되면 다른 고장까지 오검출하는 문제로 지적되고 있다.In addition, since there is no function of detecting the validity of the oil temperature in the valve, it is pointed out that the wrong information due to the sensor defect is misdetected even when other information is used as an ambient condition for determining the failure of various automatic transmissions.

본 발명은 자동변속기가 유압제어장치에 있어서, 유온센서의 동작에 이상이 발생하였을 경우, 그 상황에 따라 유온센서의 이상 진단신호를 정확하게 처리함으로써 오제어를 방지하여 변속클러치의 제어가 운전자의 운행감 저하를 발생하지 않도록 하는 자동변속기 유온센서 장시간 방치로 인한 결함 검출방법을 제공함에 그 목적이 있다.According to the present invention, when an error occurs in the operation of the oil temperature sensor in the hydraulic control device in the hydraulic control device, the error diagnosis signal of the oil temperature sensor is correctly processed according to the situation to prevent erroneous control so that the control of the shift clutch is operated by the driver. It is an object of the present invention to provide a method for detecting defects due to long-term storage of an automatic transmission oil temperature sensor that does not cause deterioration.

상기한 목적에 따라 본 발명에서는 차량 엔진회전수를 감지하여 그에 따른 전기신호를 출력하는 엔진회전수검출부(10)와, 구동회전수를 감지하여 그에 따른 전기신호를 출력하는 변속기입력축회전수검출부(20)와, 변속기 오일의 온도를 감지하여 그에 따른 전기신호를 출력하는 유온검출부(30)와, 상기 엔진회전수검출부(10)와 변속기입력축회전수검출부(20)로 부터 출력되는 신호를 입력받아 엔진의 상태를 판단하고, 상기 유온검출부(30)로 부터 출력되는 신호를 입력받아 유온센서의 상태를 판단하여 그에 따라 해당하는 변속클러치 제어신호를 생성하여 출력하는 TCU(50)와 상기 TCU(50)로부터 출력되는 신호에 따라 동작하여 해당하는 만큼의 유압을 통해 작동되어지는 변속클러치(70)가 구비되는 것에 있어서, 엔진 정지후 방치시간에 따른 오일온도의 하강시, 규정온도이상으로 계측되는 오일온도를 검출하여 유온센서의 결함여부를 판단하는 유온센서결함여부판단수단으로 구성되고, 상기한 유온센서결함여부판단수단에 의해 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법을 제공함에 그 특징이 있다.According to the above object, in the present invention, the engine speed detection unit 10 detects the vehicle engine speed and outputs the electric signal according to the above, and the transmission input shaft speed detection unit 20 detects the drive speed and outputs the electric signal accordingly. ), An oil temperature detector 30 for detecting a temperature of a transmission oil and outputting an electric signal according to the engine oil, and a signal output from the engine speed detector 10 and the transmission input shaft speed detector 20. TCU 50 and the TCU 50 to determine the state of the, and receives the signal output from the oil temperature detection unit 30 to determine the state of the oil temperature sensor to generate and output the corresponding shift clutch control signal accordingly. In the gear shift clutch 70 is operated according to the signal output from the operating by the corresponding hydraulic pressure, the oil temperature according to the idle time after engine stop It is composed of oil temperature sensor fault determination means for detecting oil temperature measured above the specified temperature during the fall, and determining whether the oil temperature sensor is defective, and the oil temperature sensor of the automatic transmission caused by the oil temperature sensor for a long time by the oil temperature sensor fault determination means. It is characterized by providing a defect detection method.

이하, 첨부된 도면을 참고로 하여 본 발명을 바람직한 실시 예를 보다 구체 적으로 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

첨부도면 도 1은 본 발명의 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법 개략적인 구성을 나타낸 블록도로서, 차량 엔진회전수를 감지하여 그에 따른 전기신호를 출력하는 엔진회전수검출부(10)와, 구동회전수를 감지하여 그에 따른 전기신호를 출력하는 변속기입력축회전수검출부(20)와, 변속기 오일의 온도를 감지하여 그에 따른 전기신호를 출력하는 유온검출부(30)와, 상기 엔진회전수검출부(10)와 변속기입력축회전수검출부(20)로부터 출력되는 신호를 입력받아 엔진의 상태를 판단하고, 상기 유온검출부(30)로 부터 출력되는 신호를 입력받아 유온센서의 상태를 판단하여 그에 따라 해당하는 변속클러치 제어신호를 생성하여 출력하는 TCU(50)와 상기 TCU(50)로부터 출력되는 신호에 따라 동작하여 해당하는 만큼의 유압을 통해 작동되어지는 변속클러치(70)로 구성되어 유온센서의 동작에 이상이 발생하였을 경우, 그 상황에 따라 유온센서 이상 진단신호를 정확하게 처리함으로써 오제어를 방지하여 변속클러치의 제어가 운전자의 운행감 저하를 발생하지 않도록 하였다.1 is a block diagram showing a schematic configuration of a defect detection method for a long time of the oil temperature sensor of an automatic transmission according to the present invention. The engine speed detection unit 10 detects a vehicle engine speed and outputs an electric signal accordingly. And a transmission input shaft rotation speed detection unit 20 for detecting a drive rotation speed and outputting an electric signal according thereto, an oil temperature detection unit 30 for sensing a temperature of transmission oil and outputting an electric signal according to the transmission speed, and the engine speed detection unit. 10 and determine the state of the engine by receiving the signal output from the transmission input shaft speed detection unit 20, and receives the signal output from the oil temperature detection unit 30 to determine the state of the oil temperature sensor accordingly It operates according to the TCU (50) for generating and outputting the shift clutch control signal and the signal output from the TCU (50) as much as the corresponding hydraulic pressure Is composed of a shift clutch 70, when an abnormality occurs in the operation of the oil temperature sensor, according to the situation, by accurately processing the oil temperature sensor abnormal diagnosis signal to prevent erroneous control, the control of the shift clutch causes a decrease in the driver's feeling of driving. Not to.

상기 엔진회전수검출부(10)는 자동차 엔진회전수를 감지하여 그에 따른 전기신호를 출력하고, 변속기입력축회전수검출부(20)는 변속기 입력축 구동회전수를 감지하여 그에 따른 전기신호를 출력한다.The engine speed detection unit 10 detects the vehicle engine speed and outputs an electric signal according thereto, and the transmission input shaft speed detection unit 20 detects a transmission input shaft drive rotation speed and outputs the electric signal accordingly.

그리고, 유온검출부(30)는 자동변속기 오일온도를 감지하여 그에 따른 전기신호를 출력하고, TCU(50)는 상기 엔진회전수검출부(10)와 변속기입력축회전수검출 부(20)로부터 출력되는 신호를 입력받아 엔진의 상태를 판단하고, 상기 유온검출부(30)로부터 출력되는 신호를 입력받아 유온센서의 상태를 판단하여 그에 따라 해당하는 변속클러치 제어신호를 생성하여 출력한다.In addition, the oil temperature detection unit 30 detects an automatic transmission oil temperature and outputs an electric signal according thereto, and the TCU 50 outputs a signal output from the engine speed detection unit 10 and the transmission input shaft revolution detection unit 20. Determine the state of the engine receives the input, and receives the signal output from the oil temperature detection unit 30 determines the state of the oil temperature sensor to generate and output the corresponding shift clutch control signal accordingly.

변속클러치(70)는 상기 TCU(50)로부터 출력되는 신호에 따라 동작하여 해당하는 만큼의 유압에 따라 작동된다.The shift clutch 70 operates according to the signal output from the TCU 50 and is operated according to the corresponding hydraulic pressure.

상기 TCU(50)에는 변속기의 변속상태를 감지하는 변속단검출부(40)와 차속을 검출하는 차속검출부(60)의 신호를 함께 입력받도록 되어 있다.The TCU 50 is configured to receive a signal from a shift stage detecting unit 40 for detecting a shift state of a transmission and a vehicle speed detecting unit 60 for detecting a vehicle speed.

본 발명에서는 엔진 정지후 방치시간에 따른 이상 오일온도 및 각 운전영역에 따른 오일온도를 추정하여 센서결함판단 및 센서결함시 대체온도로 사용한다.In the present invention, by estimating the abnormal oil temperature according to the idle time after the engine stop and the oil temperature according to each operation region, it is used as a sensor defect determination and a substitute temperature when the sensor is defective.

도 2는 본 발명의 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법에 있어 엔진 정지후 방치시간에 따른 오일온도를 검출하여 유온센서의 장시간 방치로 인한 결함여부를 판단하는 유온센서결함여부판단수단을 나타낸 흐름도(ATF soak time monitering flow chart)이다.Figure 2 is a method for detecting defects caused by the oil temperature sensor prolonged neglect of the automatic transmission of the present invention detects the oil temperature according to the idle time after the engine stop to determine whether there is a fault due to the oil temperature sensor defect to determine whether there is a defect due to long-term neglect of the oil temperature sensor (ATF soak time monitering flow chart).

도시된 바와 같이 엔진 정지후 방치시간에 따른 오일온도를 검출하여 유온센서의 결함여부판단수단을 이용한 자동변속기의 유온센서결함 검출방법은 유온센서 결함검출기능설정 중 장시간실온방치상태를 통한 유온센서결함검출기능 해제, 가능 적용여부를(bit 2 =1) 확인하는 단계(S201)와,As shown, the oil temperature sensor fault detection method of the automatic transmission using the oil temperature sensor fault detection means by detecting the oil temperature according to the idle time after the engine stops, the oil temperature sensor fault through the long time room temperature standing state during the oil temperature sensor fault detection function setting. Detecting the detection function, possible application (bit 2 = 1) step (S201),

상기 단계에서 해제(bit2 = 0)이면 종료단계로 이동하고, 가능(bit2 = 1)이면 시동완료 여부를 확인 하는 단계(S202)와, If it is released in the step (bit2 = 0), go to the end step, and if possible (bit2 = 1) checking whether the start is complete (S202),

상기 단계에서 시동완료 여부를 확인하여 시동이 완료되어 있지 않으면 시동 완료여부확인하는 이전단계로 되돌아가고, 시동이 완료되면 차량전원과 차량전원임계전압(10V)을 비교하는 단계(S203)와,Checking whether the start is completed in the above step, if the start is not completed, returns to the previous step of checking whether the start is completed, and when the start is completed, comparing the vehicle power and the vehicle power threshold voltage (10 V) (S203),

상기 단계(S203)에서 차량전원이 차량전원임계전압 보다 작으면 차량전원과 차량전원임계전압을 비교하는 단계로 돌아가고, 차량전원이 차량전원 임계전압(10V) 보다 크면 실온방치시간을 수신하는 단계(S204)로 이동하여 실온 방치시간을 수신 받은 후 실온방치시간과 방치결함판단조건임계시간을 비교하는 단계(S205)와,In step S203, if the vehicle power is less than the vehicle power threshold voltage, the process returns to comparing the vehicle power and the vehicle power threshold voltage, and if the vehicle power is greater than the vehicle power threshold voltage (10V), receiving a room temperature leaving time ( S204) after receiving the room temperature standing time and comparing the room temperature standing time and the neglect defect determination condition threshold time (S205),

상기 단계에서 실온방치시간이 방치결함판단조건임계시간보다 작으면 종료단계로 이동하고, 실온방치시간이 방치결함판단조건임계시간보다 크면 엔진냉각수온도 및 흡기온도신호 정상여부를 확인하는 단계(S206)와,In this step, if the room temperature neglect time is less than the neglect defect determination condition threshold time, go to the end step, and if the room temperature neglect time is greater than the neglect defect determination condition threshold time, checking whether the engine coolant temperature and the intake air temperature signal are normal (S206). Wow,

상기 단계(S206)에서 엔진냉각수온도 및 흡기온도신호가 비정상이면 종료단계로 이동하고, 엔진냉각수온도 및 흡기온도신호가 정상이면 엔진냉각수온도와 흡기온도와의 차를 방치결함판단조건온도편차와 비교하는 단계(S207)와.If the engine coolant temperature and the intake air temperature signal are abnormal in the step S206, and if the engine coolant temperature and the intake air temperature signal are normal, the difference between the engine coolant temperature and the intake air temperature is compared with the fault determination condition temperature deviation. And step (S207).

상기 단계(S207)에서 엔진냉각수온도와 흡기온도와의 차가 방치결함판단조건온도편차보다 크면 종료단계로 이동하고 엔진냉각수온도와 흡기온도와의 차가 방치결함판단조건온도편차보다 작으면 오일온도와 냉각수온도의 차와 방치결함판단임계온도편차와 비교하는 단계(S208)와,If the difference between the engine coolant temperature and the intake temperature is greater than the neglect defect determination condition temperature deviation in the step (S207), the process moves to the end step and if the difference between the engine coolant temperature and the intake temperature is less than the neglect defect determination condition temperature deviation, the oil temperature and the coolant are Comparing the difference between the temperature and the neglect fault determination threshold temperature deviation (S208),

상기 단계(S208)에서 오일온도와 냉각수온도의 차가 방치결함판단임계온도편차보다 작으면 종료단계로 이동하고, 오일온도와 냉각수온도의 차가 방치결함판단임계온도편차보다 크면 고온고착결함판단(S209) 후 종료하도록 구성된다.In step S208, if the difference between the oil temperature and the coolant temperature is less than the neglect defect determination threshold temperature difference, the process moves to the end step, and if the difference between the oil temperature and the coolant temperature is greater than the neglect defect determination threshold temperature deviation, the high temperature freeze defect determination is determined (S209). And then exit.

이상에서와 같이 본 발명은 변속클러치 제어시 고려하는 오일온도를 나타내는 유온변수(Oil_temp)를 확인하고, 그 값이 설정상태이면, 시동이 꺼진 후에도 정보를 기억시키고, 상기 유온변수의 값은 변속클러치 작동영역 진입시의 유온 설정상태 및 해제상태로 기억하여 극심한 온도환경 변화가 예상되는 한랭지에서 변속클러치 제어에 오동작이 발생하는 것을 방지할 수 있다.As described above, the present invention checks the oil temperature variable (Oil_temp) indicating the oil temperature to be considered in shift clutch control, and if the value is set, the information is stored even after the start is turned off, and the value of the oil temperature variable is the shift clutch The oil temperature setting state and release state at the time of entering the operating area can be stored to prevent malfunctions in the shift clutch control in cold regions where extreme temperature environment changes are expected.

따라서, 한랭지에서 자동변속기의 유압을 제어하는 것에 있어서 유온센서의 장시간 방치로 인한 결함 등의 이유로 인해 동작에 이상이 발생하였을 경우, 그 상황에 따라 유온센서 이상 진단신호를 정확하게 처리함으로써 오제어를 방지하여 변속클러치의 제어가 운전자의 운행감 저하를 발생하지 않도록 하는 등의 효과가 있게 된다.Therefore, in case of abnormality in operation due to defects due to long-term neglect of the oil temperature sensor in controlling the hydraulic pressure of the automatic transmission in the cold region, it prevents erroneous control by accurately processing the oil temperature sensor error diagnosis signal according to the situation. Therefore, the control of the shift clutch is effective such that the driver's feeling of driving does not decrease.

Claims (1)

자동변속기의 유압제어장치 유온센서결함 검출방법에 있어서,In the oil pressure sensor fault detection method of the automatic control of the automatic transmission, 유온센서 결함검출기능설정 중 장시간실온방치상태를 통한 유온센서결함검출기능 해제,가능적용여부를(bit 2 =1) 확인하는 단계(S201)와,Determination of the oil temperature sensor fault detection function through the long time room temperature standing state during the setting of the oil temperature sensor fault detection function (bit 2 = 1) and checking whether (bit 2 = 1), and 상기 단계에서 해제(bit2 = 0)면 종료단계로 이동하고, 가능(bit2 = 1)이면 시동완료 여부를 확인 하는 단계(S202)와, In step (2) if the release (bit2 = 0), go to the end step, and if possible (bit2 = 1) to check whether the startup is complete (S202), 상기 단계에서 시동완료 여부를 확인하여 시동이 완료되어 있지 않으면 시동완료여부확인하는 단계로 되돌아가고, 시동이 완료되면 차량전원과 차량전원임계전압(10V)을 비교하는 단계(S203)와,Checking whether the start is completed in the above step, if the start is not completed, the process returns to the step of checking whether the start is completed, and when the start is completed, comparing the vehicle power and the vehicle power threshold voltage (10V) (S203), 상기 단계(S203)에서 차량전원이 차량전원임계전압 보다 작으면 차량전원과 차량전원임계전압을 비교하는 단계로 돌아가고, 차량전원이 차량전원 임계전압(10V) 보다 크면 실온방치시간을 수신하는 단계(S204)로 이동하여 실온 방치시간을 수신 받은 후 실온방치시간과 방치결함판단조건임계시간을 비교하는 단계(S205)와,In step S203, if the vehicle power is less than the vehicle power threshold voltage, the process returns to comparing the vehicle power and the vehicle power threshold voltage, and if the vehicle power is greater than the vehicle power threshold voltage (10V), receiving a room temperature leaving time ( S204) after receiving the room temperature standing time and comparing the room temperature standing time and the neglect defect determination condition threshold time (S205), 상기 단계에서 실온방치시간이 방치결함판단조건임계시간보다 작으면 종료단계로 이동하고, 실온방치시간이 방치결함판단조건임계시간보다 크면 엔진냉각수온도 및 흡기온도신호 정상여부를 확인하는 단계(S206)와,In this step, if the room temperature neglect time is less than the neglect defect determination condition threshold time, go to the end step, and if the room temperature neglect time is greater than the neglect defect determination condition threshold time, checking whether the engine coolant temperature and the intake air temperature signal are normal (S206). Wow, 상기 단계(S206)에서 엔진냉각수온도 및 흡기온도신호가 비정상이면 종료단계로 이동하고, 엔진냉각수온도 및 흡기온도신호가 정상이면 엔진냉각수온도와 흡기온도와의 차를 방치결함판단조건온도편차와 비교하는 단계(S207)와.If the engine coolant temperature and the intake air temperature signal are abnormal in the step S206, and if the engine coolant temperature and the intake air temperature signal are normal, the difference between the engine coolant temperature and the intake air temperature is compared with the fault determination condition temperature deviation. And step (S207). 상기 단계(S207)에서 엔진냉각수온도와 흡기온도와의 차가 방치결함판단조건온도편차보다 크면 종료단계로 이동하고 엔진냉각수온도와 흡기온도와의 차가 방치결함판단조건온도편차보다 작으면 오일온도와 냉각수온도의 차와 방치결함판단임계온도편차와 비교하는 단계(S208)와,If the difference between the engine coolant temperature and the intake temperature is greater than the neglect defect determination condition temperature deviation in the step (S207), the process moves to the end step and if the difference between the engine coolant temperature and the intake temperature is less than the neglect defect determination condition temperature deviation, the oil temperature and the coolant are Comparing the difference between the temperature and the neglect fault determination threshold temperature deviation (S208), 상기 단계(S208)에서 오일온도와 냉각수온도의 차가 방치결함판단임계온도편차보다 작으면 종료단계로 이동하고, 오일온도와 냉각수온도의 차가 방치결함판단임계온도편차보다 크면 고온고착결함판단(S209) 후 종료하도록 구성된 엔진 정지후 방치시간에 따른 오일온도를 검출하여 유온센서의 결함여부판단수단를 이용한 자동변속기의 유온센서 장시간 방치로 인한 결함 검출방법.In step S208, if the difference between the oil temperature and the coolant temperature is less than the neglect defect determination threshold temperature difference, the process moves to the end step, and if the difference between the oil temperature and the coolant temperature is greater than the neglect defect determination threshold temperature deviation, the high temperature freeze defect determination is determined (S209). A method of detecting a defect due to long-term standing of an oil temperature sensor of an automatic transmission by detecting an oil temperature according to an idle time after stopping an engine configured to terminate the engine.
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Publication number Priority date Publication date Assignee Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117760596A (en) * 2024-02-22 2024-03-26 潍坊宏图环保设备有限公司 temperature sensor quality detection system
CN117760596B (en) * 2024-02-22 2024-05-28 潍坊宏图环保设备有限公司 Temperature sensor quality detection system

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