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遙操作拖拉機路感模擬系統(tǒng)設(shè)計與實驗
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江蘇省科技計劃項目(BK20151436)


Design and Tests of Road Feel Simulation System for Teleoperated Tractors
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    摘要:

    為了使遙操作拖拉機駕駛員對路面信息有更直觀的感受,,在課題組前期設(shè)計的一套拖拉機遙操作系統(tǒng)的基礎(chǔ)上設(shè)計了路感模擬系統(tǒng)。首先提出路感模擬系統(tǒng)的總體設(shè)計方案,。然后分析拖拉機路感產(chǎn)生機理,,并對遙操作拖拉機的轉(zhuǎn)向執(zhí)行機構(gòu)以及控制器進行改造,設(shè)計出路感測試系統(tǒng),。最后根據(jù)所設(shè)計的路感測試系統(tǒng),,在草地、水泥地等路面上對遙操作拖拉機進行原地轉(zhuǎn)向以及行駛轉(zhuǎn)向時不同速度下的轉(zhuǎn)向阻力矩測量,,并且利用Logitech G29方向盤式操縱裝置在草地和水泥路面展開路感的模擬實驗,。實驗及測試結(jié)果表明,,遙操作拖拉機在不同路面的轉(zhuǎn)向阻力矩相差較大,,但是總體變化趨勢相同,,一開始轉(zhuǎn)向阻力矩隨著方向盤轉(zhuǎn)角的增大而增大并在方向盤轉(zhuǎn)角處于100°~120°時開始回落,當方向盤轉(zhuǎn)角處于200°左右時有小幅度的上升,。通過方向盤式操縱裝置對遙操作拖拉機路感展開模擬,,各項評價指標得分均在6.3~8.5分之間,表明該方法模擬路感的可行性,。

    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.

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薛金林,曹梓建,李雨晴.遙操作拖拉機路感模擬系統(tǒng)設(shè)計與實驗[J].農(nóng)業(yè)機械學(xué)報,2022,53(3):432-439. XUE Jinlin, CAO Zijian, LI Yuqing. Design and Tests of Road Feel Simulation System for Teleoperated Tractors[J]. Transactions of the Chinese Society for Agricultural Machinery,2022,53(3):432-439.

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  • 收稿日期:2021-03-30
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  • 在線發(fā)布日期: 2022-03-10
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