具有优化参数的主动双蓄能器悬挂系统PI控制器
PI Controller for Active Twin-Accumulator Suspension with Optimized Parameters Based on a Quarter Model
AI总结：
本文研究双蓄能器悬挂系统在传统被动系统中的行为，重点分析舒适性和路持性能，通过构建四分之一模型的动力学模型，利用MATLAB Simulink环境进行仿真，采用多目标进化策略算法优化参数，并通过PI控制器提升悬挂性能。
摘要：
本文主要研究双蓄能器悬挂系统在传统被动系统中的行为，重点分析舒适性和路持性能。因此，构建了被动和双蓄能器悬挂系统的四分之一模型动力学模型。使用MATLAB Simulink环境开发悬挂模型。仿真应用了两种不同的道路扰动，即阶跃输入和随机输入来扰动悬挂系统。通过使用多目标进化策略算法，利用一个成本函数来最小化车身加速度、悬挂位移以及动态轮胎载荷的RMS值，获得最优解。此外，本文还提出了一个具有PI控制器的主动悬挂系统，以提高悬挂性能标准。被动、优化的双蓄能器悬挂系统和主动悬挂系统的仿真结果包括车身位移、车轮偏移、车辆车身加速度、悬挂行程和动态轮胎载荷，并进行了比较和分析。结果显示，双蓄能器悬挂系统在舒适性行为方面相比被动悬挂系统有显著改进。最后，可以观察到，使用所提出的PI控制器可以改善车身位移和车轮位移的性能。
英文摘要：
This paper is primarily studying the behaver of the twin-accumulator suspension over the conventional passive system focusing on ride quality behavior and road holding. Therefore, a dynamic modeling of passive and twin-accumulator suspension for a quarter model is constructed. MATLAB Simulink environment is used to develop the suspension models. The simulation is applied with two different road disturbances, namely, step input and random input to disturb the suspension system. The optimum solution is obtained numerically by utilizing a multi-objective evolutionary strategy algorithm and employing a cost function that seeks to minimize the RMS value of the body acceleration, the suspension displacement as well as the dynamic tire load. Moreover, in this work, an active suspension system with PI controller is presented in order to improve the suspension performance criteria. The simulation results of passive, optimized twin accumulator suspension and active suspension consist of body displacement, wheel deflection, vehicle body acceleration, suspension travel and dynamic tire load are compared and analyzed. Results show that the twin-accumulator suspension system gives worthwhile improvements in ride behavior compared with the passive suspension. Finally, it can be observed that the performance of body displacement and wheel displacement can be improved by using the proposed PI controller.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
