论文标题

联网异质车辆的合作约束运动协调

Cooperative constrained motion coordination of networked heterogeneous vehicles

论文作者

Sun, Zhiyong, Greiff, Marcus, Robertsson, Anders, Johansson, Rolf, Anderson, Brian D. O.

论文摘要

我们考虑了多种构成各种限制的多种异构移动车辆的合作运动协调问题。这些包括非语言运动约束,恒定速度约束,自动协调约束以及平等/不平等几何约束。我们开发了一个涉及差分 - 代数方程和生存力理论的一般框架,以确定在异质车辆动力学和不同类型的协调任务约束下协调运动控制的可行性。如果存在针对衍生的微分 - 代数方程和/或不等式的协调运动解决方案,则提出了一种建设性算法来得出一个等效的动力系统,该动力系统为每个车辆生成一组可行的协调运动。在协调两辆车的案例研究中,我们为由汽车样车辆,独轮车或具有恒定速度的车辆组成的两辆车组提供了分析解决方案,这些群体可以用作更复杂的车辆组的基准配位任务。运动产生算法的模拟数据很好地支持了涉及异质车辆的各种协调情况。然后,我们扩展了车辆控制框架,以解决随着时变的协调任务和领导者追随者的结构来处理合作协调问题。我们在各种约束下显示了多辆车配位的几个模拟实验,以验证所提出的方案的理论和有效性。

We consider the problem of cooperative motion coordination for multiple heterogeneous mobile vehicles subject to various constraints. These include nonholonomic motion constraints, constant speed constraints, holonomic coordination constraints, and equality/inequality geometric constraints. We develop a general framework involving differential-algebraic equations and viability theory to determine coordination feasibility for a coordinated motion control under heterogeneous vehicle dynamics and different types of coordination task constraints. If a coordinated motion solution exists for the derived differential-algebraic equations and/or inequalities, a constructive algorithm is proposed to derive an equivalent dynamical system that generates a set of feasible coordinated motions for each individual vehicle. In case studies on coordinating two vehicles, we derive analytical solutions to motion generation for two-vehicle groups consisting of car-like vehicles, unicycle vehicles, or vehicles with constant speeds, which serve as benchmark coordination tasks for more complex vehicle groups. The motion generation algorithm is well-backed by simulation data for a wide variety of coordination situations involving heterogeneous vehicles. We then extend the vehicle control framework to deal with the cooperative coordination problem with time-varying coordination tasks and leader-follower structure. We show several simulation experiments on multi-vehicle coordination under various constraints to validate the theory and the effectiveness of the proposed schemes.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源