KR101242222B1 - Method for controlling a vehicle - Google Patents
Method for controlling a vehicle Download PDFInfo
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- KR101242222B1 KR101242222B1 KR1020060125755A KR20060125755A KR101242222B1 KR 101242222 B1 KR101242222 B1 KR 101242222B1 KR 1020060125755 A KR1020060125755 A KR 1020060125755A KR 20060125755 A KR20060125755 A KR 20060125755A KR 101242222 B1 KR101242222 B1 KR 101242222B1
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/04—Monitoring the functioning of the control system
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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
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
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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
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/1284—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is a sensor
Abstract
자동 변속기의 출력측 속력 센서의 고장 여부를 판단하기 위하여, 본 발명은, 자동 변속기를 포함하는 자동차의 제어 방법에 있어서, 상기 자동 변속기의 출력측 속력 센서 및 입력측 속력 센서로부터 출력된 신호로부터 각각 제1차속 및 제2차속을 계산하는 단계와, 상기 제1차속이 정지상태이고, 상기 자동 변속기의 주행 모드가 전진 모드인 경우, 상기 자동차가 주행 시작 조건을 만족하면, 상기 자동차의 변속 레버가 중립 위치 조건을 만족하는지 여부를 판단하는 단계와, 상기 중립 위치 조건을 만족하면 상기 자동 변속기의 출력측 속력 센서가 정상인 것으로 판단하는 단계와, 상기 중립 위치 조건을 만족하지 않으면, 상기 자동차가 주행 조건을 만족하는지 여부를 판단하는 단계와, 상기 주행 조건을 만족하면 상기 자동 변속기의 출력측 속력 센서가 고장인 것으로 판단하고, 상기 주행 조건을 만족하지 못하면 상기 자동 변속기의 출력측 속력 센서가 정상인 것으로 판단하는 단계를 포함하는 자동차의 제어 방법을 제공한다.In order to determine whether the output speed sensor of the automatic transmission is faulty, the present invention provides a control method of a vehicle including an automatic transmission, wherein the first vehicle speed is respectively output from signals output from the output speed sensor and the input speed sensor of the automatic transmission. And calculating a second vehicle speed, and when the first vehicle speed is at a stop state and the driving mode of the automatic transmission is the forward mode, when the vehicle satisfies the driving start condition, the shift lever of the vehicle is in a neutral position condition. Determining whether the vehicle satisfies the condition, determining that the output speed sensor of the automatic transmission is normal if the neutral position condition is satisfied, and whether the vehicle satisfies the driving condition if the neutral position condition is not satisfied. And determining the output side speed sensor of the automatic transmission when the driving condition is satisfied. It determined to be a failure, and provides a failure to meet the traveling condition of the vehicle control method comprising the step of determining to be normal the output side speed sensor of the automatic transmission.
Description
도 1은 본 발명의 일 실시예에 따른 자동차의 제어 방법의 흐름도이다.1 is a flowchart of a control method of a vehicle according to an embodiment of the present invention.
본 발명은 자동차의 제어방법에 관한 것으로서, 더 상세하게는 자동 변속기의 출력측 속력 센서의 고장 여부를 판단하는 자동차의 제어방법에 관한 것이다.The present invention relates to a control method of a vehicle, and more particularly, to a control method of a vehicle for determining whether or not the output speed sensor of the automatic transmission.
일반적으로, 차량의 차속은 속력 센서를 이용하여 측정한다. 그런데, 최근 들어, 소형 차량에서는 원가절감을 위해 속력 센서를 삭제하고, 변속 제어부(TCU)에서 자동 변속기의 출력측 속력 센서로부터 출력측 신호로부터 차속을 계산하여, 타 유닛에게 차속에 대한 정보를 제공한다.In general, the vehicle speed of the vehicle is measured using a speed sensor. However, recently, in a small vehicle, the speed sensor is deleted for cost reduction, and the speed controller TCU calculates the vehicle speed from the output side signal from the output speed sensor of the automatic transmission, and provides information on the vehicle speed to other units.
그런데, 자동 변속기의 출력측 속력 센서에 고장이 발생할 경우, 고장 여부를 판단하기가 어려운 문제점이 있다.However, when a failure occurs in the output speed sensor of the automatic transmission, it is difficult to determine whether the failure occurs.
본 발명은 자동 변속기의 출력측 속력 센서의 고장 여부를 판단하는 자동차의 제어 방법을 제공하는 것을 목적으로 한다.An object of the present invention is to provide a control method of a vehicle for determining whether the output speed sensor of the automatic transmission is broken.
본 발명은, 자동 변속기를 포함하는 자동차의 제어 방법에 있어서, 상기 자동 변속기의 출력측 속력 센서 및 입력측 속력 센서로부터 출력된 신호로부터 각각 제1차속 및 제2차속을 계산하는 단계와, 상기 제1차속이 정지상태이고, 상기 자동 변속기의 주행 모드가 전진 모드인 경우, 상기 자동차가 주행 시작 조건을 만족하면, 상기 자동차의 변속 레버가 중립 위치 조건을 만족하는지 여부를 판단하는 단계와, 상기 중립 위치 조건을 만족하면 상기 자동 변속기의 출력측 속력 센서가 정상인 것으로 판단하는 단계와, 상기 중립 위치 조건을 만족하지 않으면, 상기 자동차가 주행 조건을 만족하는지 여부를 판단하는 단계와, 상기 주행 조건을 만족하면 상기 자동 변속기의 출력측 속력 센서가 고장인 것으로 판단하고, 상기 주행 조건을 만족하지 못하면 상기 자동 변속기의 출력측 속력 센서가 정상인 것으로 판단하는 단계를 포함하는 자동차의 제어 방법을 제공한다.According to an aspect of the present invention, there is provided a control method for a vehicle including an automatic transmission, the method comprising: calculating a first vehicle speed and a second vehicle speed from signals output from an output speed sensor and an input speed sensor of the automatic transmission, and the first vehicle speed; Is in the stopped state and the driving mode of the automatic transmission is the forward mode, when the vehicle satisfies the driving start condition, determining whether the shift lever of the vehicle satisfies the neutral position condition, and the neutral position condition Determining that the output speed sensor of the automatic transmission is normal; determining whether the vehicle satisfies the driving condition if the neutral position condition is not satisfied; and if the driving condition is satisfied, If it is determined that the speed sensor on the output side of the transmission is faulty and does not satisfy the above driving conditions, Group to provide a car control method comprising a step of determining to be normal the output side speed sensor of the automatic transmission.
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이하 첨부된 도면들은 참조하여, 실시예들을 설명한다.Hereinafter, exemplary embodiments will be described with reference to the accompanying drawings.
도 1을 참조하면, 본 발명의 일 실시예에 따른 자동차의 제어 방법의 흐름도가 도시되어 있다.1, a flowchart of a control method of a vehicle according to an embodiment of the present invention is shown.
먼저, 자동차의 자동 변속기의 출력측 속력 센서로부터 출력된 신호로부터 제1차속을 계산하고(S10 단계), 상기 자동 변속기의 입력측 속력 센서로부터 출력된 신호로부터 제2차속을 계산한다(S15 단계). 그 후, 상기 제1차속이 정지상태이고, 상기 자동 변속기의 주행 모드가 전진 모드인지 여부를 판단한다(S20 단계). 상기 제1차속이 영(zero)일 경우, 제1차속이 정지상태인 것으로 판단한다. 또한, 상기 자동차의 변속 레버가 "2단", "3단", "L단" 또는 "D단"에 위치한 경우, 상기 주행 모드가 전진 모드인 것으로 판단한다. 만일, 제1차속이 정지상태가 아니거나, 주행 모드가 전진 모드가 아닌 경우, 출력측 속력 센서는 정상 작동 중인 것으로 판단한다(S55 단계).First, the first vehicle speed is calculated from the signal output from the output side speed sensor of the automatic transmission of the vehicle (step S10), and the second vehicle speed is calculated from the signal output from the input side speed sensor of the automatic transmission (step S15). Thereafter, it is determined whether the first vehicle speed is in the stopped state and the driving mode of the automatic transmission is the forward mode (step S20). When the first vehicle speed is zero, it is determined that the first vehicle speed is at a stop state. In addition, when the shift lever of the vehicle is located at the "second stage", "three stage", "L stage" or "D stage", it is determined that the driving mode is the forward mode. If the first vehicle speed is not stopped or the driving mode is not the forward mode, the output speed sensor is determined to be in normal operation (step S55).
만일, 상기 제1차속이 정지상태이고, 상기 자동 변속기의 주행 모드가 전진 모드이면, 상기 자동차가 주행 시작 조건을 만족하는지 여부를 판단한다(S25 단계). 상기 자동차의 주행 시작 조건은, 상기 자동차의 변속 레버가 "D단"인 조건(제1조건), 상기 자동차가 홀드 모드 스위치(hold mode switch)를 포함하면 상기 자동차의 변속기가 1단 운전상태이고, 상기 자동차가 홀드 모드 스위치(hold mode switch)를 포함하지 않으면 상기 자동차의 변속기가 "1단" 또는 "2단" 운전상태이 고(제2조건), 상기 자동차가 휠 스피드 센서를 포함하지 않아야 한다(제3조건). 즉, 상기 자동차의 주행 시작 조건은 제1조건, 제2조건 및 제3조건을 모두 만족시켜야 한다.If the first vehicle speed is stopped and the driving mode of the automatic transmission is the forward mode, it is determined whether the vehicle satisfies the driving start condition (step S25). The driving start condition of the vehicle is a condition in which the shift lever of the vehicle is "D stage" (first condition), and when the vehicle includes a hold mode switch, the transmission of the vehicle is in the first stage driving state. If the vehicle does not include a hold mode switch, the transmission of the vehicle is in a "stage 1" or "stage 2" driving state (second condition), and the vehicle must not include a wheel speed sensor. (Third condition). That is, the driving start condition of the vehicle must satisfy all of the first condition, the second condition, and the third condition.
만일, 상기 자동차가 주행 시작 조건을 만족하지 않으면, 상기 자동차가 제1주행 조건을 만족하는지 여부를 판단한다(S60 단계). 상기 제1주행 조건은, 제1설정 시간 동안 상기 자동차의 엔진 속도가 제1설정 속도보다 크고, 제2차속이 제2설정 속도보다 큰지 여부로부터 판단한다. 여기에서, 제1설정 시간은 약 1초일 수 있으며, 제1설정 속도는 약 2000RPM이고, 제2설정 속도는 약 20㎞/h일 수 있다. 만일 상기 자동차가 제1주행 조건을 만족하지 않으면, 상기 출력측 속력 센서는 정상 작동 중인 것으로 판단한다(S65 단계). 하지만, 상기 자동차가 제1주행 조건을 만족하면, 상기 출력측 속력 센서는 고장 상태인 것으로 판단한다(S50 단계).If the vehicle does not satisfy the driving start condition, it is determined whether the vehicle satisfies the first driving condition (S60). The first driving condition is determined from whether the engine speed of the vehicle is greater than the first set speed and the second vehicle speed is greater than the second set speed during the first set time. Here, the first set time may be about 1 second, the first set speed may be about 2000 RPM, and the second set speed may be about 20 km / h. If the vehicle does not satisfy the first driving condition, the output speed sensor is determined to be in normal operation (step S65). However, if the vehicle satisfies the first driving condition, the output speed sensor is determined to be in a failure state (step S50).
상기 자동차가 주행 시작 조건을 만족하면, 상기 자동차의 변속 레버가 중립(N; Neutral) 위치 조건을 만족하는지 여부를 판단한다(S30 단계). 상기 중립 위치 조건은, 제2설정 시간 동안 상기 자동차의 엔진 속도(Ve)와 상기 제2차속(Vt)의 차이(Ve-Vt)가 제3설정속도 보다 크고, 상기 제2차속이 제4설정속도보다 커야 한다. 여기에서, 제2설정 시간은 약 2초일 수 있으며, 제3설정 속도는 약 400RPM이고, 제4설정 속도는 약 50RPM일 수 있다. 만일, 중립 위치 조건을 만족하면, 상기 출력측 속력 센서는 정상 작동 중인 것으로 판단한다(S55 단계). 하지만, 중간간 위치 조건을 만족하지 않으면, 상기 자동차의 클러스터에 제2차속을 출력한다(S40 단계).When the vehicle satisfies the driving start condition, it is determined whether the shift lever of the vehicle satisfies the neutral position condition (S30). In the neutral position condition, a difference Ve-Vt between the engine speed Ve and the second vehicle speed Vt of the vehicle is greater than a third set speed for a second set time, and the second vehicle speed is set to a fourth setting. Must be greater than speed Here, the second set time may be about 2 seconds, the third set speed may be about 400 RPM, and the fourth set speed may be about 50 RPM. If the neutral position condition is satisfied, the output speed sensor is determined to be in normal operation (step S55). However, if the intermediate position condition is not satisfied, the second vehicle speed is output to the cluster of the vehicle (step S40).
상기 자동차의 클러스터에 제2차속을 출력한 후, 상기 자동차가 제2주행 조건을 만족하는지 여부를 판단한다(S45 단계). 제2주행 조건은, 제3설정 시간 동안 상기 자동차의 스로틀 포지션 센서(throttle position senser)의 개도율이 설정 개도율보다 크고, 상기 자동차의 엔진 속도가 제5설정 속도보다 크고, 제2차속이 제6설정 속도보다 커야 한다. 여기에서, 제3설정 시간은 4초이고, 설정 개도율은 7%이고, 제5설정 속도는 2600RPM이고, 제6설정 속도는 약 20㎞/h일 수 있다. 만일, 상기 자동차가 제2주행 조건을 만족하지 않으면, 상기 출력측 속력 센서는 정상 작동 중인 것으로 판단한다(S55 단계). 하지만, 상기 자동차가 제2주행 조건을 만족하면, 상기 출력측 속력 센서는 고장 상태인 것으로 판단한다(S50 단계). After outputting the second vehicle speed to the cluster of vehicles, it is determined whether the vehicle satisfies the second driving condition (S45). In the second driving condition, the opening rate of the throttle position senser of the vehicle is greater than the setting opening rate for the third set time, the engine speed of the vehicle is greater than the fifth setting speed, and the second vehicle speed is 6 Must be greater than the set speed. Here, the third set time may be 4 seconds, the set opening rate is 7%, the fifth set speed may be 2600 RPM, and the sixth set speed may be about 20 km / h. If the vehicle does not satisfy the second driving condition, the output speed sensor is determined to be in normal operation (step S55). However, when the vehicle satisfies the second driving condition, the output speed sensor is determined to be in a failure state (step S50).
상기에서, 상기 자동차의 출력측 속력 센서가 고장 상태인 것으로 판단하면, 상기 자동 변속기의 클러스터에는 계속 제2차속을 출력할 수 있다.If the speed sensor of the output side of the vehicle is determined to be in a fault state, the second vehicle speed may be continuously output to the cluster of the automatic transmission.
본 발명의 자동차의 제어 방법은, 자동 변속기의 출력측 속력 센서의 고장 여부를 용이하게 판단할 수 있다. 따라서, 자동차의 안정적인 운전 및 제어가 가능해 진다.The control method of the vehicle of the present invention can easily determine whether or not the output side speed sensor of the automatic transmission has failed. Therefore, stable driving and control of the vehicle can be achieved.
본 발명은 도면에 도시된 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의하여 정해져야 할 것이다.While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
Claims (8)
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| KR1020060125755A KR101242222B1 (en) | 2006-12-11 | 2006-12-11 | Method for controlling a vehicle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08300976A (en) * | 1995-04-28 | 1996-11-19 | Isuzu Motors Ltd | Method for detecting failure of vehicle speed sensor |
| JPH1018896A (en) * | 1996-07-01 | 1998-01-20 | Nissan Motor Co Ltd | Fault diagnostic device for speed detection device |
| KR100277002B1 (en) * | 1997-01-24 | 2001-02-01 | 미야까와 요시유끼 | Apparatus and method for monitoring a rotational speed value detected by the rotational speed sensor to detect an abnormal occurrence of the rotational speed sensor applicable to a continuously variable transmission for a vehicle |
| KR20030073392A (en) * | 2002-03-11 | 2003-09-19 | 현대자동차주식회사 | Method for controlling output speed sensor fail diagnosis of automatic transmission |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08300976A (en) * | 1995-04-28 | 1996-11-19 | Isuzu Motors Ltd | Method for detecting failure of vehicle speed sensor |
| JPH1018896A (en) * | 1996-07-01 | 1998-01-20 | Nissan Motor Co Ltd | Fault diagnostic device for speed detection device |
| KR100277002B1 (en) * | 1997-01-24 | 2001-02-01 | 미야까와 요시유끼 | Apparatus and method for monitoring a rotational speed value detected by the rotational speed sensor to detect an abnormal occurrence of the rotational speed sensor applicable to a continuously variable transmission for a vehicle |
| KR20030073392A (en) * | 2002-03-11 | 2003-09-19 | 현대자동차주식회사 | Method for controlling output speed sensor fail diagnosis of automatic transmission |
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