电传动车辆反拖系统设计与分层控制策略研究
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国家高技术研究发展计划(863计划)资助项目(2011AA060404)


Anti-drive System Design and Hierarchy Control Strategy of Electric Drive Vehicle
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    摘要:

    针对轮边电传动汽车长距离下坡工况中发动机的高怠速、高油耗,设计了反拖回馈电传动系统,轮边电动机再生制动能量回馈至直流母线,由整流模块切换到控制同步牵引发电机,使其工作在牵引电动机状态,反拖发动机至额定转速,此时发动机油门关闭。依据分层控制思想,提出了车辆行驶状态判断的上层控制算法、基于发电机转子频率跟踪的中层控制算法和基于双模糊控制的底层控制算法反拖回馈的3层控制体系。台架试验表明:该传动方式可以提供发动机功率20%的连续制动力,节省燃油,控制策略鲁棒性好,对驾驶员意图识别能力强。

    Abstract:

    To solve the problems of high idle speed and fuel consumption of wheeled electric drive vehicle on long downhill condition, an anti-drive energy feedback system was designed. The wheeled motors regenerative braking energy was feedback to DC bus and switched from rectifier to inverter module. The synchronous traction generator was driven by inverter as traction motor, which dragging the engine speed to the rated state, and at this time, the throttle was closed. Based on the hierarchical control idea, a three layers control algorithm of anti-drive feedback system, the up layer control algorithm of vehicle state estimation, middle layer of tracking generator rotor frequency and underlying layer of double fuzzy, was put forward. Bench test result showed the anti-drive energy feedback system could provide continuous braking force which equal to 20% of engine power, and save 15% of fuel. The control strategy has good robustness and strong driver intention recognition.

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金 纯,郑舒阳,田海永.电传动车辆反拖系统设计与分层控制策略研究[J].农业机械学报,2014,45(4):22-27.

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  • 收稿日期:2013-11-19
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  • 在线发布日期: 2014-04-10
  • 出版日期: 2014-04-10