Agricultural feed mixer with volumetric responsive automatic transmission

A feed mixer apparatus comprising:

• a mixing chamber for receiving feed material, and having a mixing element situated therein for mixing the feed material;
• a transmission having a plurality of gears and sensors, the transmission connected with the mixing element;
• a plurality of mixing chamber sensors positioned to sense at least one of a volume and a level of feed material in the mixing chamber;
• and
• a control unit having a display, a processor, a memory, a control program, and a plurality of user inputs, the control unit in at least indirect communication with the transmission and the sensors,
• wherein the control unit is configured to receive a plurality of outputs from one or more of the transmission and sensors, and based at least in part on the plurality of outputs, to provide an output command to effectuate a gear change in the transmission,
• wherein the plurality of mixing chamber sensors includes at least two mixing chamber sensors that are capable of communicating level signals to the control program, and
• wherein the control program is configured to execute instructions to perform at least one of a volumetric analysis and an average level analysis to produce a result, based at least in part on the combined outputs of the at least two mixing chamber sensors.