Although the active suspension system removes the restrictions of the passive suspension system , its cost in hardware is high . therefore there are few actual active suspension system to be found on the vehicles 主动悬架系统虽然克服了被动悬架系统的缺陷,但由于主动悬架系统实现的造价很高,因此到目前为止尚未见到性能较好、造价较低的主动悬架得到应用。
Energy consumption badly restricts the development and applied research of active suspension system . so the concept of compound suspension is put forward . the device consists of the passive shock absorber and an electromagnetic actuator 基于车辆系统的能源消耗是制约主动悬架控制技术发展及实用化研究的主要问题,将一种电磁式主动执行器与被动减振器构成复合悬架系统。
Based on this point , this dissertation carries through the study of integrated control in vehicle electronic power steering ( eps ) and active suspension system ; two sub - control systems directly influence the vehicle ' s handling stability and ride comfort 基于此,本文对直接影响车辆操纵稳定性和乘坐舒适性的两个电控子系统?电动助力转向( eps )和主动悬架系统进行了集成控制的研究。
The key parts of semi - active suspension system are hydraulic dampers capable of adjusting damping force in accordance with driving conditions . on the base of it , the paper designs moveable valve adjustable dampers . its structure simple , the control is effective 半主动悬架系统的关键部件是适应车辆行驶变化的阻尼力可调的液力减震器,鉴于此,本文设计了一种电磁阀控制的两态可调减震器,其结构简单,控制有效。
The semi - active suspension , as compromise between the conventional passive suspension system and active suspension system , can perform the function of active suspension system , but the requirements of the power is very few . so a variety of semi - active suspension system have been into practice 由于半主动悬架系统作为介于传统的被动悬架系统和主动悬架系统之间的折衷方案,克服了被动悬架系统的缺陷,其实现的费用也比较低。
The semi - active suspension as compromise between the conventional passive suspension system and active suspension system , can perform the function of active suspension system , but the requirements of the power is very few . so a variety of semi - active suspension systems have been into practice 半主动悬架作为介于传统的被动悬架系统和主动悬架系统之间的折衷方案,既克服了被动悬架系统的缺陷,又使实现成本降低,成了汽车技术的研究热点。
The on / off control performances of the skyhook damper in semi - active suspension system , the occur of chatter and its avoiding are analysis . the continuous damping rules are derived according to the feature of damping curve given by the controller in active control system 首先对主动悬挂系统阻尼控制中的天棚阻尼原理在半主动悬挂中的应用进行了研究,分析了其开关控制特性、颤振及其避免方法;根据主动悬挂控制信号的特点导出了连续阻尼控制规律。
H robust controller is devised for the integrated mathematical models . computer simulations with matlab6 . 1 demonstrate that h2 / h output feedback controller of the active suspension system , based on nash equilibrium point , achieves a good balance between robust stability and suspension performance Matlab6 . 1进行仿真,仿真结果表明通过纳什均衡点设计出的h _ 2 h _输出反馈控制器能够使系统在保持鲁棒稳定性的前提下获得优化的动态性能指标。
The automotive semi - active suspension systems , which consist of passive springs and active dampers with adjustable damping force for different road conditions and automobile running conditions , are the most popular automotive suspension systems due to the active suspension ' s high cost and passive suspension ' s limited performances 鉴于汽车全主动悬架系统高额的价格和被动悬架性能上的不足,由被动弹性元件和主动阻尼器构成的半主动悬架越来越受到相关研究机构的关注,并逐渐成为研究热点,也受到全球汽车制造商的青睐。
Finally , a feedback control system of neural network was designed and a special learning method was produced to train the neural network which was applied in the non - linear model of semi - active suspension . the result of test showed ride comfort and handling was improved preferably after the control , and the semi - active suspension system harmonized the vehicle performance with the controller 最后,设计了神经网络反馈控制系统,采用一种特殊学习(直接学习)方法对其进行训练,并将其应用于半主动悬架非线性模型的仿真验证,通过对多种路面激励输入条件下的仿真分析表明:该神经网络反馈控制系统可以较好地提高车辆的乘坐舒适性和操纵稳定性,采用这种神经网络反馈控制的半主动悬架,可以较好地协调车辆性能。