Systems and methods for measurement of a vehicle load

1 . A measurement system for a vehicle comprising:

a first sensor configured to measure forces or changes in forces acting on a load along a first axis;

a second sensor configured to measure forces or changes in forces acting on the load along a second axis; and

control circuitry configured to:

receive data from the first sensor corresponding to the force or the changes in force in the first axis;

receive data from the second sensor corresponding to the force or the changes in force in the second axis;

correlate the forces or the changes in force along the first and second axes;

determine one or more of a direction of motion, a thrust, or a center of gravity in the first or second axes associated with the load based on the correlation;

control one or more systems to adjust one or more operating parameters in response to a determination that the changes exceed a first threshold value of one or more threshold values;

receive force measurements from the first and second sensors to determine a weight value for the one or more loads; and

determine a correction factor for the weight value based on the first sensor and the second sensor.

2 . The measurement system of claim 1 , wherein the first axis is orthogonal to the second axis.

3 . The measurement system of claim 1 , wherein the vehicle is a forklift truck.

4 . The measurement system of claim 3 , wherein the forklift truck is configured to:

secure the load on one or more load mounting fixtures; and

adjust a position or orientation of the load by a predetermined amount resulting in a change of force on the load, wherein each of the first and second sensors are configured to measure changes in forces along the first and second axes, respectively, in response to the adjustment.

5 . The measurement system of claim 4 , wherein the control circuitry is further configured:

receive the measured changes in the forces along the first and second axes; and

calculate a position of the center of gravity along the first axis or the second axis within the load based on a correlation of the measured changes.

6 . The measurement system of claim 1 , further comprising a third sensor configured to measure changes in force along a third axis, wherein the third axis is orthogonal to both the first axis and the second axis.

7 . The measurement system of claim 1 , wherein the control circuitry is further configured to:

measure the changes in force along the first and second axes continually, periodically, or in response to a command; and

compare the changes in force along the first axis or the second axis to the one or more threshold values.

8 . The measurement system of claim 1 , wherein the vehicle is a forklift truck, and wherein the one or more systems includes a drive mechanism, a load handling fixture, or a lift carriage.

9 . The measurement system of claim 8 , wherein the one or more operating parameters includes adjusting speed of the forklift, a position or orientation of the load handling fixture, or a position or orientation of the lift carriage.

10 . The measurement system of claim 1 , wherein the control circuitry is further configured to determine changes in the forces along the first axis or the second axis relative to motion of the vehicle.

11 . The measurement system of claim 1 , wherein the control circuitry is configured to determine the correction factor for the weight value without using a pitch angle sensor, without using a roll angle sensor, or both.

12 . The measurement system of claim 11 , wherein the control circuitry is configured to determine the correction factor for the weight value without using a pitch angle sensor.

13 . The measurement system of claim 11 , wherein the control circuitry is configured to determine the correction factor for the weight value without using a roll angle sensor.