基于改进的模糊神经网络PID控制的双阶段半活性ISD悬浮的研究
Linhao Jin1, Jingjing Fan1, Fu Du2
1School of Electrical and Control Engineering, North China University of Technology, Beijing 100144, China.
Sensors (Basel, Switzerland)
|October 28, 2023
概括
一个新的两阶段惰性差异阻尼器 (ISD) 半活性悬挂系统和控制策略显著提高了车辆的驾驶舒适度和驾驶稳定性. 这种先进的系统可以减少车身加速和轮胎负荷,从而实现更平稳,更稳定的行驶.
科学领域:
- 汽车工程 汽车工程
- 控制系统 控制系统
- 机械振动 - 机械振动
背景情况:
- 车辆悬架系统对于驾驶舒适性和驾驶稳定性至关重要.
- 现有的半活性悬架在同时优化舒适性和稳定性方面存在局限性.
- 惯性差异阻尼器 (ISD) 技术为先进的悬挂性能提供了潜力.
研究的目的:
- 设计一个新的两级ISD半活性悬浮结构.
- 开发一个优化的半活性ISD悬挂控制策略.
- 评估拟议的控制策略在改善车辆动态方面的有效性.
主要方法:
- 设计了一种新的两级ISD半活性悬挂结构,包括可调节的阻尼器,弹和惰性器.
- 一个模糊的神经网络 (FNN) 控制策略被开发和优化使用灰狼优化 (GWO) 算法.
- 在Matlab/Simulink中模拟了一个1/4 2度自由度的ISD半活性悬浮模型,比较PID,FNN-PID和GWO-FNN-PID控制方案.
主要成果:
- 与PID和标准FNN-PID控制相比,灰狼优化模糊神经网络PID控制策略显著降低了车身加速.
- 使用GWO-FNN-PID控制策略的建议,轮胎动态负荷也大幅降低.
- 模拟结果表明,优化控制策略的性能优于传统方法.
结论:
- 拟议的两级ISD半活性悬架结构和GWO优化的FNN-PID控制策略有效地提高了车辆的驾驶舒适性.
- 开发的控制策略通过减少轮胎的动态负载来提高操纵稳定性.
- 这项研究为先进的车辆悬架系统提供了有前途的方法.
相关概念视频
PD Controller: Design
250
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,...
250
PID Controller
121
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...
121
Time-Domain Interpretation of PD Control
123
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...
123
Second Order systems I
165
A servo system exemplifies a second-order system, featuring a proportional controller and load elements that ensure the output position aligns with the input position. The relationship between these components is described by a second-order differential equation. Applying the Laplace transform under zero initial conditions yields the transfer function, showing how inputs are converted to outputs in the system.
By reinterpreting the system, one can derive the closed-loop transfer function, which...
By reinterpreting the system, one can derive the closed-loop transfer function, which...
165
Controller Configurations
102
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...
102
Feedback control systems
319
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
319


