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1. 发明申请

US20150285670A1 FAILURE DIAGNOSIS APPARATUS FOR FUEL LEVEL SENSOR AND FAILURE DIAGNOSIS METHOD FOR FUEL LEVEL SENSOR 有权
标题翻译：燃油级传感器故障诊断装置和燃油级传感器故障诊断方法
公开(公告)号：US20150285670A1
公开(公告)日：2015-10-08
申请号：US14418113
申请日：2013-07-23
申请人： NISSAN MOTOR CO., LTD.
发明人： Akio Takahashi , Shinsuke Takakura
IPC分类号： G01F25/00 , F02D41/22
CPC分类号： G01F25/0061 , B60K2015/03217 , F02D41/222 , F02D2041/224 , F02D2200/0625 , F02M37/106 , Y02T10/40
摘要： A failure diagnosis apparatus for a fuel level sensor that detects a fuel remaining quantity within a fuel tank including at least a first tank and a second tank includes: a range deter mining unit for determining a range of a fuel remaining quantity on the basis of an output value of the fuel level sensor, the range being classified into a plurality of ranges in accordance with an output characteristic of the fuel level sensor; and a range failure diagnosis unit for carrying out failure diagnosis of the fuel level sensor for each range by comparing a fuel consumption quantity since the ranges are changed with a failure determining threshold value individually set up for each range. In a dead zone range in which a change in the output value of the fuel level sensor becomes small when a fuel consumer is switched from the first tank to the second tank, the range failure diagnosis unit sets the failure determining threshold value to a value corresponding to a fuel consumption quantity required to pass through the dead zone range.
摘要翻译：一种用于检测包括至少第一罐和第二罐的燃料箱内的燃料剩余量的燃料液位传感器的故障诊断装置，包括：范围限制挖掘单元，用于基于以下方式确定燃料剩余量的范围：燃料液位传感器的输出值，该范围根据燃料液位传感器的输出特性分为多个范围; 以及范围故障诊断单元，用于通过比较由于范围随着每个范围分别设置的故障判定阈值而改变的燃料消耗量，对每个范围进行燃料液位传感器的故障诊断。在燃料消耗器从第一罐向第二罐切换时燃料液位传感器的输出值的变化变小的死区范围中，范围故障诊断部将故障判定阈值设定为相应的值达到通过死区范围所需的燃料消耗量。

2. 发明授权

US09267835B2 Failure diagnosis apparatus for fuel level sensor and failure diagnosis method for fuel level sensor 有权
标题翻译：燃油液位传感器故障诊断装置及燃油位传感器故障诊断方法
公开(公告)号：US09267835B2
公开(公告)日：2016-02-23
申请号：US14418113
申请日：2013-07-23
申请人： NISSAN MOTOR CO., LTD.
发明人： Akio Takahashi , Shinsuke Takakura
IPC分类号： G01F25/00 , F02D41/22 , F02M37/10 , B60K15/03
CPC分类号： G01F25/0061 , B60K2015/03217 , F02D41/222 , F02D2041/224 , F02D2200/0625 , F02M37/106 , Y02T10/40
摘要： A failure diagnosis apparatus for a fuel level sensor that detects a fuel remaining quantity within a fuel tank including at least a first tank and a second tank includes: a range deter mining unit for determining a range of a fuel remaining quantity on the basis of an output value of the fuel level sensor, the range being classified into a plurality of ranges in accordance with an output characteristic of the fuel level sensor; and a range failure diagnosis unit for carrying out failure diagnosis of the fuel level sensor for each range by comparing a fuel consumption quantity since the ranges are changed with a failure determining threshold value individually set up for each range. In a dead zone range in which a change in the output value of the fuel level sensor becomes small when a fuel consumer is switched from the first tank to the second tank, the range failure diagnosis unit sets the failure determining threshold value to a value corresponding to a fuel consumption quantity required to pass through the dead zone range.
摘要翻译：一种用于检测包括至少第一罐和第二罐的燃料箱内的燃料剩余量的燃料液位传感器的故障诊断装置，包括：范围限制挖掘单元，用于基于以下方式确定燃料剩余量的范围：燃料液位传感器的输出值，该范围根据燃料液位传感器的输出特性分为多个范围; 以及范围故障诊断单元，用于通过比较由于范围随着每个范围分别设置的故障判定阈值而改变的燃料消耗量，对每个范围进行燃料液位传感器的故障诊断。在燃料消耗器从第一罐向第二罐切换时燃料液位传感器的输出值的变化变小的死区范围中，范围故障诊断部将故障判定阈值设定为相应的值达到通过死区范围所需的燃料消耗量。

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