Abstract:To make the teleoperated tractor driver have more intuitive feeling of the road information, road feel simulation system was designed on the basis of the teleoperation system for tractors that was designed before. By referring to the research ideas of road feel in the steer-by-wire system and combining sensor measurement method and parameter fitting method, the road sense was tested and simulated on the platform of teleoperated tractor. First of all, the overall design scheme of road feel simulation system was proposed. Then, through the analysis of the mechanism of tractor road feel, and the transformation of the steering actuator and controller of the teleoperation tractor, the road feel test system was designed. Finally, according to the road feel test system, the steering resistance torque of teleoperated tractor was measured on the grass and cement roads at different speeds, and the simulation test of road feel was carried out on the grass and cement roads by using the Logitech steering wheel. The test results showed that the steering torque of teleoperated tractor on different roads varied greatly, but the overall trend was the same. At first, the steering torque was increased with the increase of the angle, and it began to fall when the steering wheel angle was between 100° and 120° and rose slightly when the steering wheel angle was about 200°. The road feel of teleoperation tractor was simulated by the G29 steering wheel of Logitech, and the score of evaluation indexes were between 6.3 and 8.5, which showed that the simulated road feel satisfied the driver.