Automatic driveline calibration for an agricultural machine

A self-propelled agricultural vehicle, comprising:

• a chassis supporting a cab and having a plurality of wheels for moving the vehicle;
• an application system supported by the chassis and including at least one storage container storing a volume of product for delivery onto an agricultural field;
• a hydrostatic drivetrain system for delivering power to the wheels and including:
• an internal combustion engine supported by the chassis,
• a hydrostatic pump system receiving torque from the internal combustion engine and converting the torque from the internal combustion engine into hydraulic power for use by the hydrostatic drivetrain system, the hydrostatic pump system comprising first and second pumps arranged as a tandem pair of variable displacement hydrostatic pumps, and
• hydraulic motors receiving hydraulic power from the hydrostatic pump system and arranged for delivering power for rotating the wheels, each hydraulic motor being configured to receive hydraulic fluid from the hydrostatic pump system for driving rotation of a wheel and return hydraulic fluid to the hydrostatic pump system;
• operator controls provided in the cab, the operator controls including a touch screen Human Machine Interface (HMI);
• and
• a processor executing a program stored in a non-transient medium, the processor executing the program to:
• receive an input from a user operable to automatically calibrate the hydrostatic drivetrain system so that a magnitude of a first electrical signal for controlling a minimum or a maximum amount of hydraulic power from the first pump that is usable by the hydrostatic drivetrain system and a magnitude of a second electrical signal for controlling a minimum or a maximum amount of hydraulic power from the second pump that is usable by the hydrostatic drivetrain system are each determined.