现代制造工程 ›› 2026, Vol. 547 ›› Issue (4): 37-44.doi: 10.16731/j.cnki.1671-3133.2026.04.005

• 机器人技术 • 上一篇    下一篇

基于物理-数据驱动的轮腿运输机器人运动控制*

李杰1,2, 郑允昊1,2, 郦骏楠1,2, 宋伟森1,2   

  1. 1 北京建筑大学机电与车辆工程学院,北京 100044;
    2 北京建筑大学城市轨道交通车辆服役性能保障北京市重点实验室,北京 100044
  • 收稿日期:2025-03-04 发布日期:2026-05-07
  • 通讯作者: 郑允昊,硕士研究生,主要研究方向为机器人控制与路径规划、无人车辆智能控制。E-mail:zhengyh0922@qq.com
  • 作者简介:李杰,教授,博士,主要研究方向为机器人控制与路径规划、无人车辆智能控制、车辆传动。E-mail:lijie7721@126.com
  • 基金资助:
    *国家自然科学基金项目(51675494);北京建筑大学金字塔人才培养工程项目(JDJQ20200308)

Motion control of wheeled-legged transport robots based on physics-data driven approach

LI Jie1,2, ZHENG Yunhao1,2, LI Junnan1,2, SONG Weisen1,2   

  1. 1 School of Mechanical,Electrical and Vehicle Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;
    2 Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles,Beijing University of Civil Engineering and Architecture,Beijing 100044,China
  • Received:2025-03-04 Published:2026-05-07

摘要: 运输易燃固体粉末或特殊液体时,由于其流动性,被运输物资会发生摩擦生热、静电积聚及自发分解等现象,可能引发火情或爆炸等危险情况,故运输工具需要具备稳定的姿态保持能力,同时具有一定的越野性能。基于此,设计一种新型串联式六轮腿运输机器人,并基于分层控制理论,构建一种拥有腿部扭矩控制器、轮胎转速控制器和TensorFlow腿部角度控制器的控制框架。腿部扭矩控制器基于虚拟模型控制(Virtual Model Control,VMC)算法控制机器人侧倾角、俯仰角和Z方向位移,使其拥有较高的姿态保持能力;轮胎转速控制器利用差速轮运动模型控制横摆角、X和Y方向位移,使其有灵活的转弯性能并减少横向力冲击;引入TensorFlow神经网络框架,依据不同高度的障碍物来控制腿部各个关节角度。对模型进行联合仿真,以验证斜坡工况和台阶工况的效果。结果表明,控制算法能使机器人在斜坡工况中有优秀的姿态保持能力,位置跟踪偏差率均小于5 %,姿态角的偏差率均小于3 %,相比未引入神经网络的情况,引入神经网络后,机器人可翻越障碍物的高度大幅提升,同时在越障过程中的稳定性更高。

关键词: 轮腿运输机器人, 虚拟模型控制, 差速轮运动模型, PID控制, 姿态控制, TensorFlow神经网络

Abstract: When transporting flammable solid powders or special liquids,due to the fluidity,the transported materials may experience effects such as heat generation from friction,electrostatic accumulation,and spontaneous decomposition,which may trigger dangerous situations such as fire or explosion. Therefore,it is necessary for the transportation vehicle to possess excellent attitude maintenance capability and certain off-road performance. Based on this,a new type of series-connected six-wheeled-legged transport robot is designed. And based on the hierarchical control theory,a control framework is constructed,which includes a leg torque controller,a tire rotation speed controller,and a TensorFlow leg angle controller. The leg torque controller employs the Virtual Model Control (VMC) algorithm to control the roll angle,pitch angle,and displacement in the Z direction of the robot,enabling it to have a high attitude maintenance capability. The tire rotation speed controller uses the differential wheel motion model to control the yaw angle,as well as displacements in X and Y directions,endowing it with flexible turning performance and reducing lateral force impacts. The TensorFlow neural network framework is introduced to control the angles of each joint of the legs according to obstacles of different heights. Finally,a co-simulation of the model is carried out to verify the effects under the slope working condition and the step working condition. The results show that the control system can enable the robot to have excellent attitude maintenance capability under the slope working condition,with a position tracking deviation rate less than 5 % and an attitude angle deviation rate being less than 3 %. Compared with the situation without the introduction of the neural network,after the introduction of the neural network,the height of the obstacles that the robot can overcome is significantly increased,and at the same time,the stability during the obstacle crossing process is higher.

Key words: wheeled-legged transport robot, Virtual Model Control (VMC), differential wheel motion model, PID control, attitude control, TensorFlow neural network

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