Method and apparatus for performing temperature compensation for a payload measurement system

A method for dynamically measuring a payload weight for a machine having at least one cylinder for elevating a payload carrier, the cylinder being connected to a fluid circuit having an actuating fluid, comprising:

• elevating the payload carrier with the at least one cylinder of the machine;
• determining a calibration weight associated with the payload carrier;
• determining a calibration temperature of the actuating fluid of the fluid circuit of the machine at the time of calibration weight determination;
• determining an uncompensated payload weight;
• determining a temperature chance between the calibration temperature and a current temperature;
• applying a first scaling conversion factor to the temperature change;
• applying a second scaling conversion factor to the uncompensated payload weight;
• and
• determining the payload weight as a function of at least the uncompensated payload weight and the scaled temperature change,
• wherein the first scaling conversion factor is a scalar coefficient that compensates for effects of temperature on the uncompensated payload weight.

A method for dynamically measuring a payload weight for a machine having at least one cylinder for elevating a payload carrier, the cylinder being connected to a fluid circuit having an actuating fluid, comprising:

• elevating the payload carrier with the at least one cylinder of the machine;
• determining a calibration weight associated with the payload carrier;
• determining a calibration temperature of the actuating fluid of the fluid circuit of the machine at the time of calibration weight determination;
• determining an uncompensated payload weight;
• determining a temperature change between the calibration temperature and a current temperature;
• applying a first scaling conversion factor to the temperature change;
• applying a second scaling conversion factor to the uncompensated payload weight;
• applying a third scaling conversion factor to a multiplied product of the temperature change and the uncompensated payload weight;
• adjusting any offset to zero;
• and
• determining the payload weight as a function of at least one of the scaled uncompensated payload weight, the scaled temperature change, the scaled multiplied product, and the adjusted offset.