Patent ID: 6552279
Filing Date: 2003-04-22
Classification: E02F,G01G

Abstract:
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 the steps of:lifting a first payload having a first payload weight; sensing a first plurality of pressure values of the actuating fluid during said lifting of said first payload; lifting a second payload having a second payload weight; sensing a second plurality of pressure values of the actuating fluid during said lifting of said second payload; establishing a first temperature of the actuating fluid associated with said first lift and said second lift; lifting a third payload having a third payload weight; sensing a third plurality of pressure values of the actuating fluid during said lifting of said third payload; establishing a second temperature of the actuating fluid associated with said third lift; and establishing a payload weight of said third payload in response to said first actuating fluid temperature, said second actuating fluid temperature, and said first and second and third plurality of actuating fluid pressure values, and said first and second payload weights.