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METHOD FOR DIAGNOSING NOISE-FAILURE OF FUEL LEVEL SENSOR IN VEHICLE
METHOD FOR DIAGNOSING NOISE-FAILURE OF FUEL LEVEL SENSOR IN VEHICLE
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机译:车辆燃油液位传感器噪声故障的诊断方法
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摘要
PROBLEM TO BE SOLVED: To provide a method for diagnosing a noise-failure of a fuel level sensor in a vehicle, so that fuel leakage monitoring can be maintained or stopped based on whether the fuel level sensor is in noise-failure or not.;SOLUTION: When a predetermined diagnosis beginning condition is satisfied, a conversion value converted from a signal from a fuel level sensor is compared with a predetermined value, and a detection of a fluctuation is counted in accordance with the comparison. When a fluctuation detection duration exceeds a predetermined period and a fluctuation detection counter value exceeds a first predetermined number, a noise-failure occurrence is counted and a noise-failure of the fuel level sensor is warned of in the case that the noise-failure counter value exceeds the second predetermined number.;COPYRIGHT: (C)2005,JPO&NCIPI
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