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公开(公告)号：KR1020090060795A
公开(公告)日：2009-06-15
申请号：KR1020070127731
申请日：2007-12-10
Applicant: 현대자동차주식회사
Inventor： 김치경
CPC classification number: Y02T10/40 , Y02T10/47 , F02D41/222 , F01N11/007 , F01N2550/00 , F01N2900/1624
Abstract: A monitoring method of a rear oxygen sensor is provided to determine the malfunction of the rear oxygen sensor by using relation between the time of OSC(Oxide Storage Capacity) of catalyst for a smoke filter device and the response time of the rear oxygen sensor. A monitoring method of a rear oxygen sensor comprises: a first step(S12) for determining whether signals, having lower value than lean decision reference value, are applied from the rear oxygen sensor or not; a third step(S16) for calculating the response time for the approval of the signals having greater value than the reach judgment reference value; a fourth step(S22) for calculating the time of OSC of catalyst; a fifth step(S28) for calculating difference for the failure decision base time of the time of OSC of the catalyst and a smoke filter device; a sixth step(S30) for determining whether the calculated difference is longer than the response time of the rear oxygen sensor or not; and a seventh step(S32,S20) for determining that the rear oxygen sensor is normal in case the sixth step is satisfied and determining the malfunction of the rear oxygen sensor in case the sixth step is not satisfied.
Abstract translation: 提供后氧传感器的监视方法，通过使用用于烟雾过滤装置的催化剂的OSC（氧化物储存容量）与后氧传感器的响应时间之间的关系来确定后氧传感器的故障。 后氧传感器的监视方法包括：用于确定来自后氧传感器是否施加具有比精确判定参考值低的信号的信号的第一步骤（S12） 第三步骤（S16），用于计算用于批准比达到判断基准值大的值的信号的响应时间; 用于计算催化剂的OSC时间的第四步骤（S22） 第五步骤（S28），用于计算催化剂和烟雾过滤装置的OSC的时间的故障判定基准时间的差; 用于确定计算出的差异是否比后氧传感器的响应时间长的第六步骤（S30）; 以及在满足第六步骤的情况下确定后氧传感器正常的第七步骤（S32，S20），并且在不满足第六步骤的情况下确定后氧传感器的故障。
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Patent Agency Ranking
公开(公告)号：KR100667419B1
公开(公告)日：2007-01-10
申请号：KR1020050108179
申请日：2005-11-11
Applicant: 현대자동차주식회사
CPC classification number: G01F23/0076
Abstract: An apparatus and a method for diagnosing the trouble of a fuel level sensor are provided to accurately diagnose the connection state of a wire between fuel level sensors included in a fuel tank of a vehicle. An apparatus and a method for diagnosing the trouble of a fuel level sensor includes a first fuel level sensor(S1), a second fuel level sensor(S2), a first trouble detecting end(W1), and a second trouble detecting end(W2), and a power train control unit. The first fuel level sensor is mounted into a fuel tank to detect the level of a fuel in a vehicle. A power source is applied to one side of the first fuel level sensor. One side of the second fuel level sensor is connected in series to the other side of the first fuel level sensor and the other side thereof is grounded. The first trouble detecting end is connected to a power source end applied to the first fuel level sensor. The second trouble detecting end is connected to connection ends of the first fuel level sensor and the second fuel level sensor. The power train control unit receives signals of the first and second detecting ends to diagnose the connection state between the first and second fuel level sensors.
Abstract translation: 提供了用于诊断燃料液位传感器的故障的装置和方法，以准确地诊断包括在车辆的燃料箱中的燃料液位传感器之间的线的连接状态。 用于诊断燃料液位传感器的故障的装置和方法包括：第一燃料液位传感器（S1），第二燃料液位传感器（S2），第一故障检测端（W1）和第二故障检测端（W2 ）和动力传动系控制单元。 第一燃料液位传感器被安装到燃料箱中以检测车辆中的燃料的水平。 电源被施加到第一燃料液位传感器的一侧。 第二燃料液位传感器的一侧与第一燃料液位传感器的另一侧串联连接，另一侧接地。 第一故障检测端连接到施加到第一燃料液位传感器的电源端。 第二故障检测端连接到第一燃料液位传感器和第二燃料液位传感器的连接端。 传动系控制单元接收第一和第二检测端的信号，以诊断第一和第二燃料液位传感器之间的连接状态。
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公开(公告)号：KR1020060062053A
公开(公告)日：2006-06-12
申请号：KR1020040100754
申请日：2004-12-03
Applicant: 현대자동차주식회사
Inventor： 김치경
IPC: F16H61/12
Abstract: 본 발명은 자동변속기 차량의 차속센서 고장 진단 방법에 관한 것으로서, 더욱 상세하게는 자동변속기 출력속도 센서의 신호를 TCU에서 엔진 ECU에서 송신하여 대체차속을 계산하는 동시에 본래의 차속과 비교하여, 차이가 거의 없으면 차속센서를 정상으로 판단하는 신속한 고장 진단 방법을 제공할 수 있도록 한 것이며, 또한 차속센서의 고장 판정시 자동변속기 제어용 TCU에서 변속 기준으로 사용하는 변속 출력속도 센서(Transmission Output Speed Sensor) 신호를 엔진 ECU에서 수신하여 엔진 제어를 위한 대체 차속으로 사용할 수 있고, 역으로 상기 변속 출력속도 센서의 고장 판정시에 엔진 ECU에서 사용되는 차속을 TCU에서 수신/변환하여 변속 제어에 사용할 수 있도록 한 자동변속기 차량의 차속센서 고장 진단 방법을 제공하고자 한 것이다.
차속센서, 엔진 ECU, TCU, 변속 출력속도 센서, 고장 진단 방법-
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公开(公告)号：KR1020090065292A
公开(公告)日：2009-06-22
申请号：KR1020070132780
申请日：2007-12-17
Applicant: 현대자동차주식회사
Inventor： 김치경
CPC classification number: G01F25/0061 , G01N23/00 , G01N27/02
Abstract: A method for examining a fuel level sensor of a fuel tank is provided to prevent malfunction of the fuel level sensor by applying a fuel consumed reference value for examining malfunction of a sub-fuel transmitter module respectively. A method for examining a fuel level sensor of a fuel tank comprises a main chamber and a sub-chamber. The main chamber includes a main fuel transmitter module. The sub-chamber includes a sub-fuel transmitter module. A method for examining a fuel level sensor of a fuel tank includes a step for comparing the amount of injected fuel with nominal capacity of the fuel tank, and a step for applying a change range value of transmitter resistance of the sub-fuel transmitter module and a fuel consumed reference value for examining malfunction.
Abstract translation: 提供了一种用于检查燃料箱的燃料液位传感器的方法，用于分别通过施加用于检查副燃料变送器模块的故障的燃料消耗基准值来防止燃料液位传感器的故障。 用于检查燃料箱的燃料液位传感器的方法包括主室和副室。 主室包括主燃料变送器模块。 子室包括副燃料发射器模块。 一种用于检查燃料箱的燃料液位传感器的方法包括：将喷射的燃料量与燃料箱的标称容量进行比较的步骤，以及用于施加副燃料发射机模块的变送器电阻的变化范围值的步骤，以及 用于检查故障的燃料消耗参考值。
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公开(公告)号：KR1020040022953A
公开(公告)日：2004-03-18
申请号：KR1020020054553
申请日：2002-09-10
Applicant: 현대자동차주식회사
Inventor： 김치경
IPC: F01M11/12
Abstract: PURPOSE: A method of checking a fail for a fuel level sensor in a vehicle is provided to cope with OBD-II(On Board Diagnosis-II) regulations by detecting a fail of noise inflow in a fuel level sensor. CONSTITUTION: A temporary fail counter is reset and a noise counter is reset(110,120). It is judged whether conditions for prohibiting noise fail diagnosis are completed in a fuel level sensor of a vehicle(130). If not, operation of a time monitor is started(140). If a value obtained by subtracting a fuel level sensor filter value from a fuel level sensor output value is larger than Beta or the value is smaller than - Beta for a predetermined time, a noise count is increased by 1(150,160). It is judged whether the predetermined time passed(170,180). If the noise count is higher than a first threshold value, the temporary fail count is increased by 1(190,200). If not, the noise fail diagnosis of the fuel level sensor is judged as normal(230). If the temporary fail count is higher than a second threshold value, the fuel level sensor is judged as noise fail, and noise fail diagnosis of the fuel level sensor is stopped(210,220).
Abstract translation: 目的：提供一种检查车辆燃油液位传感器故障的方法，以通过检测燃油液位传感器噪声流入的失败来应对OBD-II（车载诊断二）规定。 构成：临时故障计数器复位，噪声计数器复位（110,120）。 在车辆的燃料液位传感器（130）中判断是否完成了禁止噪声故障诊断的条件。 如果不是，则启动时间监视器的操作（140）。 如果通过从燃料液位传感器输出值减去燃料液位传感器滤波器值而获得的值大于β，或者在预定时间内小于-β，则噪声计数增加1（150,160）。 判断预定时间是否过去（170,180）。 如果噪声计数高于第一阈值，临时故障计数增加1（190,200）。 如果不是，则燃料液位传感器的噪声故障诊断被判断为正常（230）。 如果临时故障计数高于第二阈值，则燃料液位传感器被判断为噪声失败，并且停止燃料液位传感器的噪声故障诊断（210,220）。
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