摘要
为了改善不同行驶工况下车辆悬架系统的动态性能,提出了一种基于空气弹簧和直线电机作动器的混合空气悬架结构。在分析混合空气悬架结构与原理的基础上,建立了1/4车辆动力学模型、空气弹簧刚度模型以及直线电机作动器阻尼力模型;设计了混合空气悬架的多模式阻尼自匹配协调控制策略,并分析了不同工况下的空气弹簧模式和直线电机阻尼自匹配方法;在不同工况下对悬架的各项动态性能进行了仿真,并开展了台架试验。仿真结果表明,混合空气悬架多模式阻尼自匹配协调控制策略能够适应不同工况条件,改善了悬架各项动态性能。试验结果表明,与被动悬架相比,混合空气悬架多模式阻尼自匹配协调控制下悬架的簧载质量加速度降低了28.08%。
In order to improve the dynamic performance of vehicle suspension system under different driving conditions,a hybrid air suspension structure based on air spring and linear motor actuator was proposed.Based on the analysis of the structure and principle of the hybrid air suspension,the 1/4 vehicle dynamics model,the air spring stiffness model and the linear motor actuator damping force model are established.The coordinated control strategy of multi-mode damping self-matching for hybrid air suspension was designed,and the air spring mode and the damping self-matching method of linear motor under different working conditions were analyzed.The dynamic performance of suspension was simulated under different working conditions,the bench test was carried out.The results show that the multi-mode damping self-matching coordinated control strategy of hybrid air suspension can adapt to different working conditions and improve the dynamic performance of suspension.The test results show compared with the passive suspension,the spring-loaded mass acceleration of hybrid air suspension is reduced by 28.08%under the coordinated control of multi-mode damping self-matching.
作者
寇发荣
何凌兰
田蕾
陈晨
洪锋
KOU Fa-rong;HE Ling-lan;TIAN Lei;CHEN Chen;HONG Feng(School of Mechanical Engineering,Xi an University of Science and Technology,Xi an,Shaanxi 710054)
出处
《液压与气动》
北大核心
2020年第4期15-22,共8页
Chinese Hydraulics & Pneumatics
基金
国家自然科学基金(51775426)
陕西省重点研发计划(2018ZDCXL-GY-05-04)
西安市碑林区2019年应用技术研发类项目(GX1928)。
关键词
混合空气悬架
直线电机
多工况
阻尼自匹配
协调控制
hybrid air suspension
linear motor
multi-mode
damping self-matching
coordinated control
