An agricultural mobile machine, comprising: a combine which includes a material processing system configured to process material in a harvesting operation; a plurality of different sensors (102-104, 300-318), each sensing a different variable and generating a corresponding sensor signal indicative of the sensed variable; a plurality of different controllable subsystems (110,112); and a controller configured to receive the sensor signals and generate a set of estimated variable values for unobserved variables and generate a plurality of different subsystem control signals to control the plurality of different subsystems (110,112), based on the sensor signals and the estimated variable values for the unobserved variables, the controller comprising a control signal generator adapted to generate the plurality of different subsystem control signals; characterized in that the controller is a probabilistic controller comprising a probabilistically inferred value generator adapted to generate the estimated variable values for the unobserved variables, the probabilistically inferred value generator adapted to receive the sensor inputs and to compute posterior probabilities or probability distributions of the unobserved variables given the inputs from the various sensors (102-104, 300-318) as evidence variables; that the probabilistically inferred value generator comprises a material stream volume estimator component that is adapted to generate estimated values indicative of material volumes at different places in the material processing system during the harvesting operation, and that the probabilistically inferred value generator comprises a crop behavior characteristic estimator component that is configured to generate estimated values indicative of processing characteristics of a crop being harvested during the harvesting operation. a combine which includes a material processing system configured to process material in a harvesting operation; a plurality of different sensors (102-104, 300-318), each sensing a different variable and generating a corresponding sensor signal indicative of the sensed variable; a plurality of different controllable subsystems (110,112); and a controller configured to receive the sensor signals and generate a set of estimated variable values for unobserved variables and generate a plurality of different subsystem control signals to control the plurality of different subsystems (110,112), based on the sensor signals and the estimated variable values for the unobserved variables, the controller comprising a control signal generator adapted to generate the plurality of different subsystem control signals; characterized in that the controller is a probabilistic controller comprising a probabilistically inferred value generator adapted to generate the estimated variable values for the unobserved variables, the probabilistically inferred value generator adapted to receive the sensor inputs and to compute posterior probabilities or probability distributions of the unobserved variables given the inputs from the various sensors (102-104, 300-318) as evidence variables; that the probabilistically inferred value generator comprises a material stream volume estimator component that is adapted to generate estimated values indicative of material volumes at different places in the material processing system during the harvesting operation, and that the probabilistically inferred value generator comprises a crop behavior characteristic estimator component that is configured to generate estimated values indicative of processing characteristics of a crop being harvested during the harvesting operation.