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首页> 外文期刊>SAE International Journal of Vehicle Dynamics, Stability, and NVH >Enhancing Ride Comfort and Stability of a Large Van Using an Improved Semi-active Stability Augmentation System
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Enhancing Ride Comfort and Stability of a Large Van Using an Improved Semi-active Stability Augmentation System

机译：使用改进的半主动稳定性增强系统提高大型厢式货车的乘坐舒适性和稳定性

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In large vehicles, controlled suspension systems play a vital role in balancing the trade-off between ride comfort and vehicle stability. This article attempts to improve the semi-active stability augmentation system (S-SAS) to provide enhanced passenger comfort and vehicle stability irrespective of the road terrain. A type-1 (T1) fuzzy attitude control strategy is developed to mitigate the loop interactions and limitations in optimizing control gains between the heave and pitch with roll motions. The inner loop called ride control uses a Mamdani interval type-2 (IT2) fuzzy logic control (FLC) to accommodate the system uncertainties and nonlinearities. Semi-active type voice-oil-actuated electrohydraulic (EH) dampers are used to provide controlled damping to suspension systems. The algorithm is deployed in a microcontroller-based hardware, and its performance is tested outdoor for bumpy road conditions at different speeds. A realistic model of the large van in CarSim is also used to investigate the robustness and reliability of the controller in roll-dominated terrains. The proposed fuzzy S-SAS (FS-SAS) is compared with standard S-SAS and passive suspension system for different road inputs. For instance, the outdoor test results on a bumpy road at 5 km/h speed show heave acceleration and roll rate reduction by 53.85% and 51.23% against the passive suspension. The simulation and experimental results indicate the capability of FS-SAS in achieving superior ride comfort, good roll stability, better road-holding, and avoiding the possibility of an untripped vehicle rollover.
机译：在大型车辆,控制悬架系统在平衡平衡起着至关重要的作用乘坐舒适性和车辆稳定性之间的关系。文章试图提高半主动增稳系统(S-SAS)提供提高旅客舒适度和车辆的稳定性无论道路地形。模糊控制策略的态度发展减少循环相互作用和局限性胀和优化控制收益音高与辊运动。程控制使用一个Mamdani间隔2型(IT2)以适应模糊逻辑控制方法系统的不确定性和非线性。半主动类型voice-oil-actuated电动液压阻尼器是用来提供(呃)阻尼悬架系统的控制。microcontroller-based部署算法硬件和室外测试其性能颠簸的路况速度不同。现实的模型CarSim大型货车的也用于研究鲁棒性和在roll-dominated控制器的可靠性地形。与标准相比S-SAS和被动悬架系统输入不同的道路。例如,室外测试结果在崎岖不平的路5公里/小时显示升沉加速度和速度滚转率减少了53.85%和51.23%被动悬架。实验结果表明的能力FS-SAS实现卓越的行驶舒适,很好辊稳定,更好的抓地,和避免的可能性untripped车辆翻转。

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