车辆半主动悬架系统模糊混合控制策略

在建立4自由度1/2车辆半主动悬架系统模型基础上,首先研发了兼顾车辆平顺性与道路友好性的模糊混合控制策略,然后利用自行开发的以Freescale MC9S12XDP512为核心处理芯片的16位电子控制单元,并结合Matlab/Real-time Windows Target模块搭建了车辆半主动悬架系统控制策略硬件在环仿真平台,在该平台开展了基于硬件在环的半实物仿真试验,深入验证模糊混合控制策略的实车应用可行性.试验结果表明,与天棚控制、地棚控制相比,所提出的模糊混合控制策略可以有效兼顾车辆平顺性和道路友好性,具有较好的实车应用前景.

Fuzzy Hybrid Control Strategy of Semi-active Suspensions for Vehicle

A half-car model of semi-active suspension systems with 4-DOF was established. An innovative fuzzy hybrid control strategy considering both ride quality and road-friendliness was developed. For deeply verifying the application of the proposed control strategy in real vehicles, a platform of hardware-in-the-loop was built for evaluating the proposed control strategy of semi-active suspension systems using a self-designed electronic control unit based on Freescale MC9S12XDP512 microcontroller and Matlab/Real-time Windows Target toolbox. A series of hardware-in-the-loop simulation were conducted by using the platform. It showed that compared with skyhook control strategy and groundhook control strategy, HIL-based fuzzy hybrid control strategy can make a balance between vehicle ride and road-friendly and had the application feasibility.