摘要
针对车辆在复杂工况下行驶时单一模式的悬架控制策略难以满足最优控制,且不能对路面振动能量进行回收的问题,基于直线电机—液压系统混合型执行器的馈能型主动悬架系统的基础上,设计一种阻尼力控制策略和悬架工作模式切换策略,使车辆在不同工况下行驶时主动悬架系统以最优模式进行工作,用于提高悬架系统的性能和馈能性,同时尽可能使用馈能回收的能量以提高能量利用率,实现改善悬架系统性能的目的。通过设计悬架控制策略并建立模型仿真,结果表明:该控制策略可以有效改善悬架系统的性能,同时在稳定工况下能量回收效率可达到16.24%左右,复杂工况下兼顾汽车行驶时的动力学性能和馈能性,验证所建模型的准确性,为后续参数和控制策略的优化提供基础。
Aiming at the problems that the single-mode suspension control strategy of the vehicle is difficult to satisfy the optimal control and cannot recover the road vibration energy when the vehicle is driving under complicated working conditions,an energy-fed active suspension based on a linear motor-hydraulic system hybrid actuator.On the basis of the system,a damping force control strategy and suspension working mode switching strategy are designed to enable the active suspension system to work in the optimal mode when the vehicle is traveling under different conditions to improve the performance and feedback of the suspension system performance.At the same time,the energy recovered from the energy feed is used as much as possible to improve the energy utilization rate and achieve the purpose of improving the performance of the suspension system.By designing a suspension control strategy and establishing a model simulation,the results show that the control strategy can effectively improve the performance of the suspension system,and at the same time,the energy recovery efficiency can reach 16.24%under stable conditions,considering the dynamic performance and energy feeding performance of the car under complicated working conditions,verifying the accuracy of the model built,and providing a basis for the subsequent optimization of parameters and control strategies.
作者
石波
邓志君
刘悦
呼超
Shi Bo;Deng Zhijun;Liu Yue;Hu Chao(School of Automobile Collage,Chang’an University,Xi'an,710064.China;School of Automobile and Communications,Shenzhen Vocational and Technical College,Shenzhen,518055,China)
出处
《中国农机化学报》
北大核心
2020年第7期123-129,共7页
Journal of Chinese Agricultural Mechanization
基金
广东省自然基金项目(2016A030313024)
深圳市基础研究项目(JCYJ20160525110851132)。
关键词
馈能
多模式悬架
滑模控制
阻尼力分配策略
能量利用率
feed energy
multi-mode suspension
sliding mode control
damping force distribution strategy
energy utilization
作者简介
第一作者:石波,男,1993年生,山西大同人,硕士研究生,研究方向为电磁悬架控制策略。E-mail:shibochang_an@163.com;通讯作者:邓志君,男,1979年生,广东河源人,硕士,副教授,研究方向为电动汽车及汽车底盘设计。E-mail:dengzhijun@szpt.edu.cn。
