Assessment of the Performance of Agricultural Tires Using a Mobile Test Bench

The performance of agricultural tires varies with the characteristics both terrain and tractors on which they are mounted, differently affect rolling resistance, traction capacity, slip. To reduce variability test conditions, CREA developed an original mobile (MTB) bench consists a dynamometric single axle trailer pulled by tractor can be used in tests (driving wheels) resistance (driven wheels). A control system alternatively operates adjustment force or slip, so that each is performed maintaining constant desired values. MTB underwent under different conditions (type surface, pre-set values slip) aimed at verifying its accuracy reliability. In final test, two pairs identical new were simultaneously mounted rear 2WD it, to discover information interactions occurring, same between soil surface pair tires, reference relationship slips load transfers observed axle. results evidenced capability guarantee repeatable including field allowing comparison among tires.