KR100448810B1 - Malfunction detecting method of fuel level sensor for vehicle - Google Patents
Malfunction detecting method of fuel level sensor for vehicle Download PDFInfo
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- KR100448810B1 KR100448810B1 KR10-2002-0029899A KR20020029899A KR100448810B1 KR 100448810 B1 KR100448810 B1 KR 100448810B1 KR 20020029899 A KR20020029899 A KR 20020029899A KR 100448810 B1 KR100448810 B1 KR 100448810B1
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- 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
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- 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
- F02D2041/224—Diagnosis of the fuel system
Abstract
본 발명은 자동차의 연료레벨센서 고장판정방법에 관한 것으로, 소정의 모니터링 조건을 만족하는가를 판단하는 단계와, 상기 모니터링 조건을 만족하면 연료레벨이 일정범위내임과 더불어 연료레벨의 최대값과 최소값의 편차가 소정치 미만인 상태로 자동차가 주행한 시간을 카운팅하는 단계와, 상기 카운팅된 시간이 소정시간을 경과하면 상기 카운팅하는 동안에 스로틀밸브의 개도 변화율이 소정치 보다 큰 상태가 적어도 한번 이상 검출되었는가를 판단하는 단계와, 상기 스로틀밸브의 개도 변화율이 소정치 보다 큰 상태가 적어도 한번 이상 검출되었으면 고장횟수를 적산하는 단계와, 상기와 같이 적산된 고장횟수가 소정치 보다 크면 연료레벨센서의 래션낼러티(rationality) 고장으로 판정하는 단계를 포함하여 구성되어, 연료레벨센서의 고장여부를 정확하게 판정할 수 있는 효과가 있다.The present invention relates to a fuel level sensor failure determination method of an automobile, comprising: determining whether a predetermined monitoring condition is satisfied; and if the monitoring condition is satisfied, the fuel level is within a certain range, and the maximum and minimum values of the fuel level are determined. Counting the time the vehicle has traveled with the deviation less than a predetermined value; and if the counted time has elapsed for a predetermined time, whether the opening degree of the throttle valve is greater than a predetermined value during the counting is detected at least once Determining the step of integrating the number of failures when the state of the opening degree change of the throttle valve is greater than a predetermined value at least once; and calculating the rationality of the fuel level sensor if the accumulated number of failures is greater than the predetermined value. (rationality) comprising the step of determining a failure, the failure of the fuel level sensor To the effect that can be accurately determined.
Description
본 발명은 자동차의 연료레벨센서 고장판정방법에 관한 것으로, 좀더 상세하게는, 가솔린엔진 차량의 자가진단 항목중에서 연료레벨센서의 고장여부를 판정하는 방법에 관한 것이다.The present invention relates to a fuel level sensor failure determination method of a vehicle, and more particularly, to a method of determining whether the fuel level sensor failure of the self-diagnosis items of the gasoline engine vehicle.
도 1은 종래기술에 따른 자동차의 연료레벨센서 고장판정방법을 설명하기 위한 순서도로서, 단계(S11)에서는 모니터링조건을 만족하는가를 판단하여 모니터링 조건을 만족하면 단계(S12)를 진행한다. 이때, 상기 모니터링 조건은 배터리 전압이 소정전압(10V) 이상임과 더불어 시동모드 해지후 소정시간(10초)이 경과한 경우이다.1 is a flowchart illustrating a method for determining a fuel level sensor failure of a vehicle according to the related art. In step S11, it is determined whether the monitoring condition is satisfied, and when the monitoring condition is satisfied, step S12 is performed. In this case, the monitoring condition is a case where the battery voltage is greater than or equal to the predetermined voltage (10V) and a predetermined time (10 seconds) elapses after the start mode is terminated.
상기 단계(S12)에서는 연료레벨을 감지하는 연료레벨센서에서 출력된 전압값(VFLS)이 소정범위(0.02V≤VFLS≤4.96V)내인지를 판단하여 상기 소정범위내이면 단계(S13)을 수행하고, 상기 소정범위를 벗어나면 단계(S19)를 수행한다.The step (S12) in the voltage value output from the fuel level sensor for sensing a fuel level (V FLS) a predetermined range (0.02V≤V FLS ≤4.96V) determines the predetermined range if the step (S13) and whether the I If out of the predetermined range and performs step (S19).
상기 단계(S13)에서는 샘플구간내에서 연료레벨을 감지하는 연료레벨센서로부터 출력된 전압값(VFLS)의 최대값과 최소값의 편차(△FLI)가 소정치(0.039V) 보다 작은지를 판단하여 작으면 단계(S14)를 수행한다.In the step S13, it is determined whether the deviation ΔFLI between the maximum value and the minimum value of the voltage value V FLS output from the fuel level sensor for detecting the fuel level in the sample section is smaller than the predetermined value (0.039V). If small, step S14 is performed.
상기 단계(S14)에서는 차속이 "0"인지를 판단하여 차속이 "0"이 아니면 단계(S15)를 수행하고, 차속이 "0"이면 단계(S16)를 수행한다. 상기 단계(S15)에서는 타이머를 동작시켜서 시간을 카운팅하고, 단계(S16)에서는 카운팅 동작을 중지한다.In step S14, it is determined whether the vehicle speed is "0", and if the vehicle speed is not "0", step S15 is performed. If the vehicle speed is "0", step S16 is performed. In step S15, the timer is operated to count time, and in step S16, the counting operation is stopped.
이어서, 단계(S17)에서는 타이머에서 카운팅된 시간이 500초에 도달하였는가를 판단하여 500초에 도달하였으면 연료레벨센서의 래션낼러티 고장(rationality malfunction)으로 판정한다.Subsequently, in step S17, it is determined whether the time counted by the timer has reached 500 seconds, and if it has reached 500 seconds, it is determined as a rationality malfunction of the fuel level sensor.
즉, 연료레벨이 소정범위내임과 더불어 연료레벨의 최대값과 최소값의 편차가 소정치 미만인 상태로 자동차가 소정시간 이상 주행되면 연료레벨센서의 래션낼러티 고장으로 판정하는 것이다.That is, if the vehicle is driven for more than a predetermined time while the fuel level is within a predetermined range and the deviation between the maximum and minimum values of the fuel level is less than the predetermined value, it is determined as a rationality failure of the fuel level sensor.
한편, 단계(S19)에서는 샘플구간내에서 연료레벨을 감지하는 연료레벨센서로부터 출력된 전압값(VFLS)의 최대값과 최소값의 편차(△FLI)가 소정치(0.039V) 보다작은지를 판단하여 작으면 단계(S20)를 수행한다.On the other hand, in step S19 it is determined whether the deviation (△ FLI) of the maximum value and the minimum value of the voltage value (V FLS ) output from the fuel level sensor for detecting the fuel level within the sample interval is smaller than the predetermined value (0.039V). If small, the step (S20) is performed.
상기 단계(S20)에서는 차속이 "0"인지를 판단하여 차속이 "0"이 아니면 단계(S21)를 수행하고, 차속이 "0"이면 단계(S22)를 수행한다. 상기 단계(S21)에서는 타이머를 동작시켜서 시간을 카운팅하고, 단계(S22)에서는 카운팅 동작을 중지한다.In step S20, it is determined whether the vehicle speed is "0", and if the vehicle speed is not "0", step S21 is performed. If the vehicle speed is "0", step S22 is performed. In step S21, the timer is operated to count the time, and in step S22, the counting operation is stopped.
이어서, 단계(S23)에서는 타이머에서 카운팅된 시간이 300초에 도달하였는가를 판단하여 300초에 도달하였으면 연료레벨센서의 하이스턱(high stuck) 고장 또는 로우스턱(low stuck) 고장으로 판정한다.Subsequently, in step S23, it is determined whether the time counted by the timer has reached 300 seconds, and when 300 seconds has been reached, it is determined as a high stuck failure or a low stuck failure of the fuel level sensor.
그러나, 상기와 같은 종래기술에 따른 자동차의 연료레벨센서의 고장판정방법은, 연료를 가득 채운 상태에서 크리프(creep) 주행 또는 정속 주행할 경우에 연료레벨의 변화가 거의 없어 정상인 연료레벨센서를 고장으로 오판정하게 되는 문제점이 있었다.However, the failure determination method of the fuel level sensor of the vehicle according to the prior art as described above, when the creep driving or constant speed driving in the state full of fuel, there is almost no change in the fuel level, which causes a normal fuel level sensor to fail. There was a problem that was wrongly judged.
이에, 본 발명은 상기한 바와 같은 종래의 제 문제점을 해소하기 위해 안출된 것으로, 스로틀밸브의 개도량 변화를 연료레벨센서 고정판정조건으로 추가하여 보다 정확하게 연료레벨센서의 고장여부를 판정할 수 있는 자동차의 연료레벨센서 고장판정방법을 제공하는데 그 목적이 있다.Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and by adding the change in the opening amount of the throttle valve as the fuel level sensor fixed determination condition, it is possible to more accurately determine whether the fuel level sensor has failed The object of the present invention is to provide a method for determining a fuel level sensor failure of a vehicle.
상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 자동차의 연료레벨센서 고장판정방법은, 소정의 모니터링 조건을 만족하는가를 판단하는 단계와, 상기 모니터링 조건을 만족하면 연료레벨이 일정범위내임과 더불어 연료레벨의 최대값과 최소값의 편차가 소정치 미만인 상태로 자동차가 주행한 시간을 카운팅하는 단계와, 상기 카운팅된 시간이 소정시간을 경과하면 상기 카운팅하는 동안에 스로틀밸브의 개도 변화율이 소정치 보다 큰 상태가 적어도 한번 이상 검출되었는가를 판단하는 단계와, 상기 스로틀밸브의 개도 변화율이 소정치 보다 큰 상태가 적어도 한번 이상 검출되었으면 고장횟수를 적산하는 단계와, 상기와 같이 적산된 고장횟수가 소정치 보다 크면 연료레벨센서의 래션낼러티(rationality) 고장으로 판정하는 단계를 포함하여 구성된 것을 특징으로 한다.In the fuel level sensor failure determination method of the vehicle according to the present invention for achieving the above object, determining whether a predetermined monitoring condition is satisfied, and if the monitoring condition is satisfied, the fuel level is within a certain range, Counting the driving time of the vehicle with the deviation between the maximum value and the minimum value of the fuel level being less than the predetermined value; and when the counted time passes the predetermined time, the rate of change of the opening degree of the throttle valve is greater than the predetermined value Determining whether the state has been detected at least once; and if the state in which the opening degree change rate of the throttle valve is detected at least once is detected at least once, accumulating the number of failures; Determining a failure ratio of the rationality of the fuel level sensor if large. The generated features.
도 1은 종래기술에 따른 자동차의 연료레벨센서 고장판정방법을 설명하기 위한 순서도,1 is a flowchart illustrating a fuel level sensor failure determination method of a vehicle according to the prior art;
도 2는 본 발명에 따른 자동차의 연료레벨센서 고장판정방법을 설명하기 위한 순서도,2 is a flowchart illustrating a fuel level sensor failure determination method for a vehicle according to the present invention;
도 3은 연료레벨센서의 특성 곡선도이다.3 is a characteristic curve diagram of a fuel level sensor.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
도 2는 본 발명에 따른 자동차의 연료레벨센서 고장판정방법을 설명하기 위한 순서도이다. 상기 도 2에 도시된 바와 같이, 단계(S31)에서는 모니터링조건을 만족하는가를 판단하여 모니터링 조건을 만족하면 단계(S32)를 진행한다. 이때, 상기 모니터링 조건은 배터리 전압이 소정전압(10V) 이상임과 더불어 시동모드 해지후 소정시간(10초)이 경과한 경우이다.2 is a flowchart illustrating a fuel level sensor failure determination method of a vehicle according to the present invention. As shown in FIG. 2, in step S31, it is determined whether the monitoring condition is satisfied, and if the monitoring condition is satisfied, step S32 is performed. In this case, the monitoring condition is a case where the battery voltage is greater than or equal to the predetermined voltage (10V) and a predetermined time (10 seconds) elapses after the start mode is terminated.
상기 단계(S32)에서는 연료레벨을 감지하는 연료레벨센서에서 출력된 전압값(VFLS)이 소정범위(0.02V≤VFLS≤4.96V)내인지를 판단하여 상기 소정범위내이면 단계(S33)을 수행하고, 상기 소정범위를 벗어나면 단계(S42)를 수행한다.The step (S32) in the voltage value output from the fuel level sensor for sensing a fuel level (V FLS) a predetermined range (0.02V≤V FLS ≤4.96V) determines the predetermined range if the step (S33) and whether the I If out of the predetermined range and performs step (S42).
상기 단계(S33)에서는 샘플구간내에서 연료레벨을 감지하는 연료레벨센서로부터 출력된 전압값(VFLS)의 최대값과 최소값의 편차(△FLI)가 소정치(0.059V) 보다작은지를 판단하여 작으면 단계(S34)를 수행한다.In the step S33, it is determined whether the deviation ΔFLI between the maximum value and the minimum value of the voltage value V FLS output from the fuel level sensor for detecting the fuel level in the sample section is smaller than the predetermined value (0.059V). If small, step S34 is performed.
상기 단계(S34)에서는 차속이 "0"인지를 판단하여 차속이 "0"이 아니면 단계(S35)를 수행하고, 차속이 "0"이면 단계(S36)를 수행한다. 상기 단계(S35)에서는 타이머를 동작시켜서 시간을 카운팅하고, 단계(S36)에서는 카운팅 동작을 중지한다.In step S34, it is determined whether the vehicle speed is "0", and if the vehicle speed is not "0", step S35 is performed. If the vehicle speed is "0", step S36 is performed. In step S35, the timer is operated to count time, and in step S36, the counting operation is stopped.
이어서, 단계(S37)에서는 타이머에서 카운팅된 시간이 200초에 도달하였는가를 판단하여 200초에 도달하였으면 단계(S38)를 수행하고, 상기 단계(S38)에서는 상기 200초 동안 스로틀밸브 개도 변화율(△TPS(dt/dT))이 소정치(0.04V/10msec) 이상인 경우가 한번 이상 검출되었는가를 판단하여 검출되었으면 단계(S39)를 수행한다.Subsequently, in step S37, it is determined whether the time counted by the timer has reached 200 seconds, and if it reaches 200 seconds, step S38 is performed. In step S38, the throttle valve opening degree change rate (Δ) for 200 seconds is performed. If it is detected that the case where the TPS (dt / dT) is greater than or equal to the predetermined value (0.04 V / 10 msec) is detected at least once, step S39 is performed.
상기 단계(S39)에서는 고장횟수에 1을 더하여 누적시키고, 이어서 단계(S40)에서는 상기와 같이 누적된 고장횟수가 소정치(6) 보다 큰지를 비교하여 소정치 보다 크면 단계(S41)을 수행하고, 상기 단계(S41)에서는 연료레벨센서의 래션낼러티 고장(rationality malfunction)으로 판정한다.In the step S39, 1 is added to the number of failures, and then, in step S40, the accumulated number of failures as described above is greater than the predetermined value 6, and if greater than the predetermined value, step S41 is performed. In step S41, it is determined as a rationality malfunction of the fuel level sensor.
즉, 연료레벨이 소정범위내임과 더불어 연료레벨의 최대값과 최소값의 편차가 소정치 미만인 상태로 자동차가 소정시간 이상 주행되는 경우에 고장횟수를 누적시켜서 소정횟수를 초과하면 연료레벨센서의 래션낼러티 고장으로 판정하되, 상기 소정시간 동안에 스로틀 밸브 개도 변화율이 소정치 보다 큰 경우가 있을때에만 고장횟수를 적산하는 것이다.That is, when the vehicle is driven for more than a predetermined time while the fuel level is within a predetermined range and the deviation between the maximum and minimum values of the fuel level is less than the predetermined value, the number of failures is accumulated and the ratio of the fuel level sensor is exceeded. It is determined as a rough failure, and the failure count is accumulated only when there is a case where the rate of change of the throttle valve opening degree is larger than the predetermined value during the predetermined time.
한편, 단계(S42)에서는 샘플구간내에서 연료레벨을 감지하는 연료레벨센서로부터 출력된 전압값(VFLS)의 최대값과 최소값의 편차(△FLI)가 소정치(0.039V) 보다 작은지를 판단하여 작으면 단계(S43)를 수행한다.Meanwhile, in step S42, it is determined whether the deviation ΔFLI between the maximum value and the minimum value of the voltage value V FLS output from the fuel level sensor that detects the fuel level within the sample section is smaller than the predetermined value (0.039V). If small, step S43 is performed.
상기 단계(S43)에서는 차속이 "0"인지를 판단하여 차속이 "0"이 아니면 단계(S44)를 수행하고, 차속이 "0"이면 단계(S45)를 수행한다. 상기 단계(S44)에서는 타이머를 동작시켜서 시간을 카운팅하고, 단계(S45)에서는 카운팅 동작을 중지한다.In step S43, it is determined whether the vehicle speed is "0", and if the vehicle speed is not "0", step S44 is performed. If the vehicle speed is "0", step S45 is performed. In step S44, the timer is operated to count time, and in step S45, the counting operation is stopped.
이어서, 단계(S46)에서는 타이머에서 카운팅된 시간이 300초에 도달하였는가를 판단하여 300초에 도달하였으면 연료레벨센서의 하이스턱(high stuck) 고장 또는 로우스턱(low stuck) 고장으로 판정한다.Subsequently, in step S46, it is determined whether the time counted by the timer has reached 300 seconds, and when it reaches 300 seconds, it is determined as a high stuck failure or a low stuck failure of the fuel level sensor.
이때, 상기에서는 연료레벨센서로부터 출력된 전압값(VFLS)을 바탕으로 고장여부를 판단하고 있는데, 상기 전압값(VFLS)은 실질적으로 연료의 레벨의 의미하는 것으로, 본 발명에서는 도 3에 도시된 바와 같이, 연료레벨센서의 출력값을 보정하여 사용하며, 연료레벨센서에서 출력된 전압값이 약2.0V이면 연료량이 10.5리터(15%)이고, 전압값이 약4.3V 이면 연료량이 59.5리터(85%)이다.At this time, in the above it is determined whether the failure based on the voltage value (V FLS ) output from the fuel level sensor, the voltage value (V FLS ) substantially means the level of fuel, in the present invention is shown in FIG. As shown, the output value of the fuel level sensor is corrected and used. When the voltage value output from the fuel level sensor is about 2.0V, the fuel amount is 10.5 liters (15%), and when the voltage value is about 4.3V, the fuel amount is 59.5 liters. (85%).
이상에서 설명한 바와 같이 본 발명에 따르면, 스로틀밸브의 개도량 변화를 연료레벨센서 고정판정조건으로 추가하여 보다 정확하게 연료레벨센서의 고장여부를 판정할 수 있는 효과가 있다.As described above, according to the present invention, it is possible to more accurately determine whether the fuel level sensor has failed by adding a change in the opening amount of the throttle valve as the fuel level sensor fixed determination condition.
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KR10-2002-0029899A KR100448810B1 (en) | 2002-05-29 | 2002-05-29 | Malfunction detecting method of fuel level sensor for vehicle |
DE10260335A DE10260335B4 (en) | 2002-05-29 | 2002-12-20 | Malfunction detection method for a fuel level sensor of a vehicle |
JP2002371052A JP3752599B2 (en) | 2002-05-29 | 2002-12-20 | Failure judgment method of automobile fuel level sensor |
CNB021581533A CN1294035C (en) | 2002-05-29 | 2002-12-23 | Fault detection method of vehicle fuel level sensor |
US10/331,886 US6763713B2 (en) | 2002-05-29 | 2002-12-30 | Malfunction detecting method for a vehicle fuel level sensor |
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KR100724262B1 (en) * | 2005-12-27 | 2007-05-31 | 지멘스 오토모티브 주식회사 | Method for detecting stuck of fuel level sensor in car |
DE102019219820A1 (en) * | 2019-12-17 | 2021-06-17 | Robert Bosch Gmbh | Method, computer program, electronic storage medium and device for monitoring a sensor system. |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000249588A (en) * | 1999-03-01 | 2000-09-14 | Suzuki Motor Corp | Failure diagnostic unit for fuel level sensor |
JP2001241992A (en) * | 2000-02-25 | 2001-09-07 | Suzuki Motor Corp | Malfunction diagnosis device for fuel level sensor |
KR20030031778A (en) * | 2001-10-16 | 2003-04-23 | 현대자동차주식회사 | Method of monitoring a fuel level sensor for vehicles |
KR20030034703A (en) * | 2001-10-26 | 2003-05-09 | 씨멘스 오토모티브 주식회사 | A diagnostic method for fuel tank level sensor |
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JP2000249588A (en) * | 1999-03-01 | 2000-09-14 | Suzuki Motor Corp | Failure diagnostic unit for fuel level sensor |
JP2001241992A (en) * | 2000-02-25 | 2001-09-07 | Suzuki Motor Corp | Malfunction diagnosis device for fuel level sensor |
KR20030031778A (en) * | 2001-10-16 | 2003-04-23 | 현대자동차주식회사 | Method of monitoring a fuel level sensor for vehicles |
KR20030034703A (en) * | 2001-10-26 | 2003-05-09 | 씨멘스 오토모티브 주식회사 | A diagnostic method for fuel tank level sensor |
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