共查询到20条相似文献,搜索用时 156 毫秒
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<正>随着家用汽车的普及率逐年提高,人们由最初的追求家用汽车较好的基本性能指标(动力性、安全性和经济性等)以及提供的方便与快捷,逐步上升到追求家用汽车自身优良的行驶性能和运动特性(舒适性、平顺性和操稳性)。与此同时,由国内外车辆研究机构的相关报告和汽车公司研发和生产的一些新型车辆可知,先进的车辆悬架系统(主动悬架、半主动悬架等)可以有效改善车辆各项行驶性能,是车辆底盘智能化发展的一个重要方向。 相似文献
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汽车舒适性与稳定性是汽车主观评估方面的两个最重要的因素。在传统悬架系统设计中,乘坐舒适性与汽车稳定性之间有个制衡关系。汽车驾乘舒适性分析被用于悬架设计,以确保乘员不舒适感不超过某一程度。在传统悬架系统中,有两个确定悬架性能的基本元件,这两个元件是弹簧和减振器。 相似文献
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我国大中型客车产品水平及技术发展 总被引:1,自引:0,他引:1
参照国际汽车发展水平,分析了国客车在整车可靠性,经济性,噪声,排放,外观造型,舒适性,平顺性,动力性,使用应用性等方面的现状,并就我国客车发动机,变速器,离合器,转向器,悬架,制动系等总成及材料的技术发展方向进行了探讨。 相似文献
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随着消费者对车辆操稳性、舒适性的要求越来越高,匹配双横臂独立悬架的中高级车型快速增长。由于双横臂独立悬架结构比麦弗逊独立悬架复杂,在车轮受地面激励时,复杂的力的传递路径会导致车内中、低频噪声,会影响车内乘员的舒适性。文章对匹配双横臂独立悬架的某款中级轿车的路噪性能分析和改进,提高了车内乘员的舒适性。 相似文献
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可切换半主动悬架的一种自适应控制策略 总被引:8,自引:1,他引:7
以提高乘坐舒适性而不损害行车安全性作为汽车可切换半主动悬架自适应控制的出发点,根据悬架设计中乘法舒适性与行驶安全性相互矛盾的特点。 相似文献
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为分析半主动悬架对汽车性能的影响,文章对半主动悬架的性能进行了仿真分析。首先在ADAMS/View开发环境中建立1/4汽车悬架模型;然后基于MATLAB/Simulink设置模糊控制规则,对半主动悬架进行模糊控制,并模拟出随机路面输入信号;最后利用ADAMS/Control模块将ADAMS和MATLAB/Simulink悬架模型联合起来进行仿真,与被动悬架进行了对比分析.可以看出,模糊控制下的半主动悬架舒适性更高,行驶安全性和操纵稳定性更好。联合仿真结果表明,半主动悬架的舒适性和平顺性均优于被动悬架。 相似文献
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基于车辆不同行驶状态(路面不平度和车速)下悬挂质量垂向加速度和悬架动挠度响应不相同的客观事实,针对半主动悬架PID控制器无自适应能力的局限,以悬挂质量垂向加速度和悬架动挠度响应作为车辆行驶状态的识别判据.建立起一种引入行驶状态识别的半主动悬架PID控制修正算法,进而以某型轿车为对象,采用MATLAB/Simulink建立起半主动悬架PID控制的仿真模型,针对不同行驶状态计算出PID控制算法修正前、后的车辆平顺性响应并加以对比,表明所提出的PID控制修正算法是有效的。 相似文献
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Advanced Control Methods of Active Suspension 总被引:1,自引:0,他引:1
H. Tobata K. Fukuyama T. Kimura N. Fukushima 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1993,22(5):347-358
This paper describes new control methods for the active suspension. For improving ride comfort further, preview control rule is proposed. For improving stability further, roll stiffness distribution control rule is examined by the test vehicle. Simulations and vehicle driving tests are conducted to confirm the effect of these new control methods. The results of simulations and vehicle driving tests show in our research phase that preview control can achieve a substantial improvement in ride comfort and application of roll stiffness distribution control provides a large improvement in stability 相似文献
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Vehicle Dynamic Analysis and Evaluation of Continuously Controlled Semi-Active Suspensions Using Hardware-in-the-loop Simulation 总被引:3,自引:0,他引:3
Sung-Ho Hwang Seung-Jin Heo Hong-Seok Kim Kyo-Il Lee 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1997,27(5):423-434
A semi-active suspension system with continuously variable damper is greatly expected to be used mainly in the future as a high-performance suspension system due to its cost-effectiveness, light weight, and low energy consumption. In this paper, to develop a suitable control logic for the semi-active suspension system, the hardware-in-the-loop simulation is performed for the experimental continuously variable damper combined with a quarter-car model, and the simulation results are compared for passive, on/off controlled, and continuously controlled dampers in the aspects of ride comfort and driving safety, assuming each damper to be installed on the vehicle. 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(5-6):347-358
SUMMARY This paper describes new control methods for the active suspension. For improving ride comfort further, preview control rule is proposed. For improving stability further, roll stiffness distribution control rule is examined by the test vehicle. Simulations and vehicle driving tests are conducted to confirm the effect of these new control methods. The results of simulations and vehicle driving tests show in our research phase that preview control can achieve a substantial improvement in ride comfort and application of roll stiffness distribution control provides a large improvement in stability 相似文献