Gear shift calibration

A method, comprising:

• causing, by a controller, a gearbox coupled to a rotor to shift between a first gear ratio and a second gear ratio one or more times;
• obtaining, by the controller using at least one sensor, a first set of position data that identifies respective first positions of a gear selector of the gearbox for each shift to the first gear ratio, and a second set of position data that identifies respective second positions of the gear selector of the gearbox for each shift to the second gear ratio;
• and
• determining, by the controller, a first calibrated position of the gear selector for a shift to the first gear ratio based on the first set of position data and a second calibrated position of the gear selector for a shift to the second gear ratio based on the second set of position data.

A rotary mixer, comprising:

• a gearbox configured to operate using at least a first gear ratio and a second gear ratio,
• the gearbox including a gear selector configured to select the first gear ratio or the second gear ratio for the gearbox;
• a rotor coupled to an output of the gearbox;
• a clutch coupled to an input of the gearbox;
• an actuator configured to control the clutch;
• a sensor configured to detect a position of the gear selector;
• and
• a controller configured to:
• cause the gearbox to shift between the first gear ratio and the second gear ratio one or more times;
• pulse the actuator between an on state and an off state one or more times after each shift between the first gear ratio and the second gear ratio;
• obtain, using the sensor, a first set of position data that identifies respective first positions of the gear selector for each shift to the first gear ratio, and a second set of position data that identifies respective second positions of the gear selector for each shift to the second gear ratio;
• and
• determine a first calibrated position of the gear selector for a shift to the first gear ratio based on the first set of position data and a second calibrated position of the gear selector for a shift to the second gear ratio based on the second set of position data.