基于混合线性方程调节器和比例导数控制的双脚轮式机器人的设计和控制
Yu Xu1, Zhaoqiang Wang1, Chenhui Lu1
1School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
Sensors (Basel, Switzerland)
|September 13, 2025
概括
这项研究引入了轮式双脚机器人 (WBRS) 的新控制方法,提高了它们在复杂地形上的适应能力. 集成的动态建模和层次控制系统提高了对外部干扰的稳定性.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制系统工程 控制系统工程
- 机械工程 机械工程
背景情况:
- 轮式双脚机器人 (WBRS) 提供了腿式机器人的适应性和轮式机器人的效率的混合.
- 传统的WBRS控制系统受到简化模型的限制,这些模型忽视了头角和质量中心高度的动态变化.
- 这些局限性阻碍了在不平坦或复杂的地形上适应能力.
研究的目的:
- 为WBRS开发一个先进的建模和控制策略,解决传统方法的局限性.
- 为了提高轮式双脚机器人的地形适应性和控制强度.
- 为WBRS提供一种用于复杂地形适应性控制的新方法.
主要方法:
- 提出了一种集成的动态建模方法,包括头角和质量中心高度变化.
- 实现了具有线性正方体调节器 (LQR) 的等级控制系统,用于姿势平衡和车轮内电机控制.
- 使用比例导数 (PD) 控制和虚拟模型控制 (VMC) 来实现基于质量中心高度反的联合电机控制.
主要成果:
- 与传统方法相比,模拟实验显示了控制稳定性的显著改善.
- 拟议的几何动态合模型和LQR-PD混合控制有效地抑制了外界干扰导致的倾斜.
- 该方法成功地提高了WBRS在具有挑战性的地形上的自适应控制能力.
结论:
- 集成的动态建模和层次控制方法为复杂地形上的WBRS导航提供了强大的解决方案.
- 这种方法为提高轮式双脚机器人的性能和适应性提供了新的范式.
- 这些发现有助于在非结构化环境中运行的自主系统的进步.
相关概念视频
PD Controller: Design
624
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
624
PID Controller
649
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
649
Time-Domain Interpretation of PD Control
377
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
377
PI Controller: Design
1.2K
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
1.2K
Controller Configurations
354
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
354
Root-Locus Method
479
A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block...
This system can be represented by a block...
479


