电磁复合悬架切换控制与能量双向流动分析  

Switching Control and Energy Bidirectional Flow Analysis of Electromagnetic Compound Suspension

作　　者：寇发荣[1] 洪锋 王睿 王思俊 张宏 KOU Farong;HONG Feng;WANG Rui;WANG Sijun;ZHANG Hong(College of Mechanical Engineering,Xi′an University of Science and Technology,Xi′an 710054,China)

机构地区：[1]西安科技大学机械工程学院,西安710054

出　　处：《机械科学与技术》2022年第3期363-370,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51775426);西安市科技计划项目(21XJZZ0039);咸阳市重点研发计划项目(2021ZDYF-GY-0027)。

摘　　要：为了在改善汽车平顺性与操纵稳定性的同时实现振动能量回收,设计了电磁直线复合作动器(Electro-magnetic linear hybrid actuator,EMLHA)。在对EMLHA悬架馈能、半主动和主动这3种工作模式分析的基础上,设计了复合悬架模式实时切换控制策略和可实现能量双向流动的可变电压源系统,仿真分析了含有可变电压源系统的复合悬架能耗特性及动态特性。结果表明,在B级路面下,与被动悬架相比,复合悬架簧载质量加速度均方根值降低22.41%,悬架动挠度均方根值降低19.83%,轮胎动载荷均方根值降低29.74%,消耗的能量减少30.7%,复合悬架在有效改善悬架动态性能的同时可实现振动能量回收。In order to improve the ride comfort and handling stability of the car and realize the recovery of vibration energy, the electro-magnetic linear hybrid actuator(EMLHA) was designed. Based on the analysis of EMLHA suspension energy feedback,semi-active and active three working modes, the real-time switching control strategy of compound suspension mode and the variable voltage source system which can realize bidirectional energy flow were designed. The energy consumption characteristics and dynamic characteristics of the compound suspension with the variable voltage source system were simulated and analyzed. The energy consumption and dynamic characteristics of the rack in the compound suspension system with the variable voltage source is simulated and analyzed. The results show that, under the B-level road, comparing with passive suspension, the compound suspension has a 22.41% reduction in the sprung mass acceleration root mean square value, a 19.83% reduction in suspension dynamic deflection root mean square value, and a tire dynamic load root mean square value reduced by 29.74% and energy consumed by 30.7%. The compound suspension can effectively improve the dynamic performance of the suspension and realize the vibration energy recovery.

关 键 词：电磁复合悬架 能量双向流动 可变电压源系统 切换控制 能量回收 

分 类 号：U463.33[机械工程—车辆工程]