Methods and apparatus for mass estimation for a vehicle

At least one non-transitory machine-readable medium comprising machine-readable instructions to cause at least one processor circuit to at least:

• determine a first position of a first reference point on a suspension system of a vehicle, the first position corresponding to the vehicle in a first state;
• determine a second position of the first reference point based on (a) sensor data from an accelerometer positioned on the suspension system and (b) relative positions of second reference points on the suspension system, the second position corresponding to the vehicle in a second state;
• determine, based on the first and second positions, a wheel-end force corresponding to a wheel of the vehicle;
• adjust the determined wheel-end force based on prognostic data corresponding to at least one component of the suspension system to increase accuracy of estimation of the wheel-end force, the prognostic data including a difference between an expected fatigue life of the at least one component and a current age of the at least one component;
• determine, based on the adjusted wheel-end force, an axle mass corresponding to an axle of the vehicle;
• determine, based on the axle mass, a vehicle mass of the vehicle;
• and
• cause a user interface to output an alert when the determined vehicle mass exceeds a threshold.

A method comprising:

• determining a first position of a first reference point on a suspension system of a vehicle, the first position corresponding to the vehicle in a first state;
• determining a second position of the first reference point based on (a) sensor data from an accelerometer positioned on the suspension system and (b) relative positions of second reference points on the suspension system, the second position corresponding to the vehicle in a second state;
• determining, based on the first and second positions, a wheel-end force corresponding to a wheel of the vehicle;
• adjusting the determined wheel-end force based on prognostic data corresponding to at least one component of the suspension system to increase accuracy of estimation of the wheel-end force, the prognostic data including a difference between an expected fatigue life of the at least one component and a current age of the at least one component;
• determining, based on the wheel-end force, an axle mass corresponding to an axle of the vehicle;
• determining, based on the axle mass, a vehicle mass of the vehicle;
• and
• causing a user interface to output an alert when the determined vehicle mass exceeds a threshold.