Abstract: A harvesting header includes a header frame, at least one cutting tool carried by the header frame, and at least one crop lifter extending forward of the cutting tool. The crop lifter is coupled to the header frame by a rotatable arm. At least one sensor coupled to the crop lifter is configured to measure an angle of the rotatable arm relative to the header frame. A crop-harvesting machine includes a chassis, a feederhouse, a processing system, a grain bin, a harvesting header, and a control system configured to adjust a position of the harvesting header based at least in part on the measured angle of the rotatable arm. A method of operating a crop-harvesting machine includes determining an angle of the rotatable arm of the crop lifter relative to the header frame and adjusting a height of the harvesting header based at least in part on the angle.

Abstract: A distance sensor is used for automatically detecting whether an outer wheel of a dual-wheel axle is present. The distance sensor is mounted to detect a distance between the sensor and an outer wheel of a dual-wheel axle. A controller compares the distance information with an expected range of distances if the outer wheel is present and determines that the wheel is not present if the measured distance falls outside the expected range. The methods and systems are particularly suitable for mobile machines, such as a combine harvester, having a rollover risk reduction system and/or a stability control system reliant on accurate width data for the machine, and which can be configured to apply different limits for maximum steering angle and/or maximum speed depending on whether the outer wheel is found to be present.

Abstract: A distance sensor is used for automatically determining the size of a wheel on a mobile machine. The distance sensor is mounted to detect distance information relating to a distance between the sensor and an outer circumferential surface of the wheel. The distance information is received by a controller configured to determine the radius of the wheel based at least in part on the distance information. The controller may compare the measured radius with data for a range of standard wheel sizes and determine which standard wheel size is fitted. The measured wheel radius and/or the determined standard wheel size can used as an input for a control system on the machine which requires wheel size data, such as an axle height adjustment system.