Method for validating e.g. digital tank level sensor used in AdBlue tank of motor car, involves recognizing error of sensor when amplitude of sloshing movement of liquid in tank falls below amplitude threshold level

The method involves detecting an amplitude (A) of a sloshing movement of liquid in a liquid tank of a motor car and/or detecting a number of sloshing events of the liquid in the tank by using a tank level sensor in a monitoring time period, which starts with starting of an acceleration phase of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KARACA, CEM, DUECK, WILHELM, CYSNEIROS CAVALCANTI SOARES, THIAGO JOSE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES INSTRUMENTATION OR DASHBOARDS FOR VEHICLES MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The method involves detecting an amplitude (A) of a sloshing movement of liquid in a liquid tank of a motor car and/or detecting a number of sloshing events of the liquid in the tank by using a tank level sensor in a monitoring time period, which starts with starting of an acceleration phase of the motor car and ends after the lapse of a defined period after the end of the acceleration phase. An error of the sensor is recognized when the amplitude falls below an amplitude threshold level and/or the number of sloshing events falls below a sloshing event threshold level. Independent claims are also included for the following: (1) a computer program comprising a set of instructions to execute a method for validating a tank level sensor utilized in a liquid tank of a motor car (2) a computer program product comprising a set of instructions to execute a method for validating a tank level sensor utilized in a liquid tank of a motor car. Die Erfindung betrifft ein Verfahren zur Plausibilisierung eines Tankpegelsensors in einem Flüssigkeitstank eines Kraftfahrzeugs. Diese umfasst das Erfassen einer Amplitude (A) einer Schwapp-Bewegung einer Flüssigkeit in dem Flüssigkeitstank und/oder einer Anzahl von Schwapp-Ereignissen der Flüssigkeit mittels des Tankpegelsensors in einem Überwachungszeitraum (tü) welcher mit dem Beginn einer Beschleunigungsphase des Kraftfahrzeugs beginnt, und nach Verstreichen eines definierten Zeitraums (tü2) nach Ende der Beschleunigungsphase endet. Es wird auf einen Fehler des Tankpegelsensors erkannt, wenn die Amplitude (A) einen Amplituden-Schwellenwert unterschreitet und/oder die Anzahl der Schwapp-Ereignisse einen Schwapp-Ereignis-Schwellenwert unterschreitet.