Offset detection for fuel level sensor fault

A system for calculating an offset detection for a fuel level sensor fault, comprising:

• a fuel level sensor, comprising,
• a float arm that pivots to according to a change in the fuel level,
• a potentiometer connected to the base of the float arm, so a connector point of the potentiometer rotates according to the position of the float arm,
• a variable resistor in contact with the connector point of the potentiometer, where the variable resistor generates an electrical resistance reading that varies based on the position of the connector point;
• an electronic data storage device that contains a fuel usage table that estimates the fuel level by referencing the electrical resistance reading from the fuel level sensor;
• and
• an electronic microprocessor that,
• calculates fuel level sensitivity based on the change in electrical resistance readings divided by the change in the estimated fuel levels (R/F);
• determines any necessary offset to the electrical resistance reading by comparing the fuel level sensitivity to a predetermined sensitivity curve that is stored in the electronic data storage device, and
• updates the fuel usage table with the offset to the electrical resistance reading.

A vehicle that calculates an offset detection for a fuel level sensor fault, comprising:

• a fuel level sensor, comprising,
• a float arm that pivots to according to a change in the fuel level of a fuel tank for the vehicle,
• a potentiometer connected to the base of the float arm, so a connector point of the potentiometer rotates according to the position of the float arm,
• a variable resistor in contact with the connector point of the potentiometer, where the variable resistor generates an electrical resistance reading that varies based on the position of the connector point;
• an electronic data storage device that contains a fuel usage table that estimates the fuel level in the fuel tank by referencing the electrical resistance reading from the fuel level sensor;
• and
• an electronic microprocessor that,
• calculates fuel level sensitivity based on the change in electrical resistance readings divided by the change in the estimated fuel levels (R/F);
• determines any necessary offset to the electrical resistance reading by comparing the fuel level sensitivity to a predetermined sensitivity curve that is stored in the electronic data storage device, and
• updates the fuel usage table with the offset to the electrical resistance reading.