检索结果-南通市图书馆

IEEE/CAA Journal of Automatica Sinica 2021年第5期8卷 1052-1066页

作者： Wenfeng Li Zhengchao Xie Yucong Cao Pak Kin Wong Jing Zhao the School of Mechanical and Automotive Engineering South China University of TechnologyGuangzhou 510641China the Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of TechnologyGuangzhou 510641China the Automotive Engineering Institute Guangzhou Automotive Group CompanyLtd.Guangzhou 510640China the Department of Electromechanical Engineering University of MacaoMacaoChina

This paper proposes a novel sampled-data asynchronous fuzzy output feedback control approach for active suspension systems in restricted frequency *** order to better investigate uncertain suspension dynamics,the sampleddata Takagi-Sugeno(T-S)fuzzy half-car active suspension(HCAS)system is considered,which is further modelled as a continuous system with an input ***,considering that the fuzzy system and the fuzzy controller cannot share the identical premises due to the existence of input delay,a reconstructed method is employed to synchronize the time scales of membership functions between the fuzzy controller and the fuzzy ***,since external disturbances often belong to a restricted frequency range,a finite frequency control criterion is presented for control synthesis to reduce ***,given a full information of state variables is hardly available in practical suspension systems,a two-stage method is proposed to calculate the static output feedback control ***,an iterative algorithm is proposed to compute the optimum ***,numerical simulations verify the effectiveness of the proposed controllers.

关键词： active suspension asynchronous constraints output feedback restricted frequency domain sampled-data control Takagi-Sugeno(T-S)fuzzy

Robust active suspension Design Subject to Vehicle Inertial Parameter Variations

在线全文

学校读者我要写书评

暂无评论

International Journal of Automation and computing 2010年第4期7卷 419-427页

作者： Hai-Ping Du Nong Zhang School of Electrical Computer and Telecommunications Engineering University of Wollongong Wollongong NSW 2522 Australia Mechatronics and Intelligent Systems Faculty of Engineering University of Technology Broadway NSW 2007 Australia

This paper presents an approach in designing a robust controller for vehicle suspensions considering changes in vehicle inertial properties. A four-degree-of-freedom half-car model with active suspension is studied in this paper, and three main performance requirements are considered. Among these requirements, the ride comfort performance is optimized by minimizing the Ho~ norm of the transfer function from the road disturbance to the sprung mass acceleration, while the road holding performance and the suspension deflection limitation are guaranteed by constraining the generalized H2 （GH2） norms of the transfer functions from the road disturbance to the dynamic tyre load and the suspension deflection to be less than their hard limits, respectively. At the same time, the controller saturation problem is considered by constraining its peak response output to be less than a given limit using the GH2 norm as well. By solving the finite number of linear matrix inequalities （LMIs） with the minimization optimization procedure, the controller gains, which are dependent on the time-varying inertial parameters, can be obtained. Numerical simulations on both frequency and bump responses show that the designed parameter-dependent controller can achieve better active suspension performance compared with the passive suspension in spite of the variations of inertial parameters.

关键词： active suspension half-car suspension model parameter-dependent control linear matrix inequalities (LMIs)

Design and experiment of electro hydraulic active suspension for controlling the rolling motion of spray boom

在线全文

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2019年第4期12卷 72-81页

作者： Longfei Cui Xinyu Xue Feixiang Le Hanping Mao Suming Ding Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture and Rural AffairsNanjing 210014China Key Laboratory of Modern Agricultural Equipment and Technology Ministry of EducationJiangsu UniversityZhenjiang 212013China

Boom sprayer is one of the most commonly used plant protection machinery for spraying *** have shown that the efficiency of chemicals is highly correlated with the uniformity of spray distribution *** the boom is a large and flexible structure,boom rolling leads to overlapping and leakage of the *** order to improve spray uniformity,the boom attitude should be kept parallel to the ground slope or to the crop canopy beneath the *** suspension can attenuate frequencies above its resonance frequency,but nothing can be done to align the boom to the sloping ***,an active suspension system is designed,which includes DSP-based controller,a servo valve,a hydraulic cylinder,two ultrasonic sensors,one inertial attitude sensor,and the developed control *** order to prevent the wrong response of the control system caused by the high frequency component due to uneven crop canopy or rough ground.A special signal processing algorithm was proposed,including the limiting filter,smoothing algorithm and data fusion algorithm based on optimal *** transient and steady-state performances of the boom control system using velocity feedforward PID algorithm were tested on a six DOF motion *** can be seen that the low-frequency tracking performance of the boom was greatly improved after the electro-hydraulic active suspension was *** the resonance frequency,the peak angle of active suspension and passive suspensions are 0.72°and 1.29°respectively,and the resonance peak is greatly *** controller was implemented on a self-propelled boom sprayer and validated under field conditions,the standard deviation of the roll angle of the boom with active suspension is 0.40°,compared with 1.04°of the sprayer *** results show that the active suspension control system can effectively reduce the effect of ground excitation disturbance on the application process,and has good tracking performance for

关键词： boom sprayer active suspension electro-hydraulic servo system six DOF motion simulator signal process motion control

Output feedback control and parameters influence analysis of active suspension electro-hydraulic servo actuator

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High Technology Letters 2023年第2期29卷 159-165页

作者：张伟 ZHAO Dingxuan GONG Mingde School of Mechanical Engineering Yanshan UniversityQinhuangdao 066004P.R.China Key Laboratory of Special Carrier Equipment of Hebei Province Yanshan UniversityQinhuangdao 066004P.R.China

The hydraulic servo actuator of heavy vehicle active suspension is investigated to clarify the correlation between system parameters and the control characteristics of active suspension hydraulic servo ***, a nonlinear physical model of electro-hydraulic servo active suspension system is *** with the conventional nonlinear modeling, the model in this study considers the asymmetry of working areas caused by single rod hydraulic cylinder in the suspension *** accordance with the model, a nonlinear output feedback controller based on backstepping is designed, and the effectiveness of the controller is proved based on the experimental *** dynamic response curve of the electro-hydraulic servo control system under the change of parameters is generated based on the simulation *** sensitivity of electro-hydraulic servo control performance to the change of system physical parameters is investigated, and two evaluation indexes are proposed to quantify and compare the effect of all physical parameter changes on position control *** revealed by the results, the position control characteristics of suspension actuator are more sensitive to the changes of flow gain of the servo valve, system supply oil pressure and effective working areas of cylinder, and the two evaluation indexes are over 10 times higher than other physical parameters.

关键词： active suspension nonlinear hydraulic servo actuator output feedback

Robust H-infinity control for constrained uncertain systems and its application to active suspension

在线全文

学校读者我要写书评

暂无评论

控制理论与应用（英文版） 2012年第4期10卷 470-476页

作者： Miaomiao MA Hong CHEN Xiangjie LIU School of Control and Computer Engineering North China Electric Power University Department of Control Science and Engineering Jilin University

This paper presents an LMI based robust H-infinity control scheme for constrained systems with norm- bounded uncertainties. The uncertainties are incorporated in the evaluation of the H-infinity norm and the time-domain constraints. The robust closed-loop properties inclusive of stability, H-infinity performance and the satisfaction of the time- domain constraints are discussed. Analysis and simulation results for a 2 DOF quarter-car model show possible improve- ments on ride comfort, while robustly respecting safety related constraints such as good road holding, limited suspension strokes and actuator saturation.

关键词： Constraints H-infinity performance LMI optimization Norm-bounded uncertainties active suspension

A Novel Energy-regenerative active suspension for Vehicles

在线全文

学校读者我要写书评

暂无评论

Journal of Shanghai Jiaotong university(Science) 2008年第2期13卷 184-188页

作者：郑雪春喻凡张勇超 State Key Laboratory of Mechanical System and Vibration Institute of Automotive EngineeringShanghai Jiaotong University

In order to regenerate electric power from the vibration excited by road unevenness,a novel energy- regenerative active suspension for vehicles was proposed with the description of its structure and its working principle with two modes switched in different operating ***,the novel active system was modeled and simulated to show the performance improvement in ride comfort in its electrical motor ***,the performance tests of the actuator prototype were carried out,which proves its capability for damping in its regenerative braking *** research results can provide useful guidance for the similar electrical active suspension design and development.

关键词： active suspension control algorithm energy regeneration vehicle dynamics

Linear Quadratic Integral Control for the active suspension of Vehicle

在线全文

学校读者我要写书评

暂无评论

Journal of Beijing Institute of Technology 2005年第3期14卷 229-233页

作者：管继富顾亮侯朝桢武云鹏 School of Information Science and Technology Beijing Institute of Technology Beijing100081 China School of Mechanical and Vehicular Engineering Beijing Institute of Technology Beijing100081 China School

The quarter model of an active suspension is established in the form of controllable autoregressive moving average （CARMA） model. An accelerometer can be mounted on the wheel hub for measuring road disturbance; this signal is used to identify the CARMA model parameters by recursive forgetting factors least square method. The linear quadratic integral （LQI） control method for the active suspension is presented. The LQI control algorithm is fit for vehicle suspension control, for the control performance index can comprise multi controlled variables. The simulation results show that the vertical acceleration and suspension travel both are decreased with the LQI control in the low frequency band, and the suspension travel is increased with the LQI control in the middle or high frequency band. The suspension travel is very small in the middle or high frequency band, the suspension bottoming stop will not happen, so the vehicle ride quality can be improved apparently by the LQI control.

关键词： active suspension recursive forgetting factors least square linear quadratic integral control adaptive control

Improving rail vehicle dynamic performance with active suspension

在线全文

学校读者我要写书评

暂无评论

High-Speed Railway 2023年第1期1卷 23-30页

作者： Sebastian Stichel Rickard Persson Rocco Giossi KTH Royal Institute of Technology KTH Railway GroupTeknikringen 8S-10044 StockholmSweden

Today,it is difficult to further improve the dynamic performance of rail vehicles with conventional passive ***,simplified vehicle respectively running gear layouts that significantly could reduce vehicle weights are difficult to realize with modern requirements on passenger vibration comfort and wheel and rail *** suspension is a powerful technology that can improve the vehicle dynamic performance and make simplified vehicle concepts *** KTH Railway group has,together with external partners,investigated active suspensions both numerically and experimentally for 15 *** paper provides a summary of the activities and the most important *** major project carried out in close collaboration with the vehicle manufacturer Bombardier and the Swedish Transport Administration was the Green Train project,where a 2-car EMU test bench was used to demonstrate different active *** ongoing projects,a concept of single axle-single suspension running gear is developed with active suspension both for comfort improvement and reduced wheel wear in *** results from on-track tests in the Green Train project were so good that the technology is now implemented in commercial trains and the simulation results for the single-axle running gear are very promising.

关键词： Rail Vehicle dynamics active suspension Ride comfort active wheelset steering Wheel wear

Two-acceleration-error-input proportional-integral-derivative control for vehicle active suspension

在线全文

学校读者我要写书评

暂无评论

Journal of Traffic and Transportation Engineering(English Edition) 2014年第3期1卷 228-234页

作者： Yucai Zhou Shian Chen Juncheng Wang School of Automotive Engineering Qinghai Communications Technical College School of Automotive and Traffic Engineering Jiangsu University

The objective of this work is to present a new two-acceleration-error-input （TAEI） proportional-integral-derivative （PID） control strategy for active suspension. The novel strategy lies in the use of sprung mass acceleration and unsprung mass acceleration signals simultaneously, which are easily measured and obtained in engineering practice. Using a quarter-car model as an example, a TAEI PID controller for active suspension is established and its control parameters are optimized based on the genetic algorithm （GA）, in which the fitness function is a suspension quadratic performance index. Comparative simulation shows that the proposed TAEI PID controller can achieve better compre- hensive performance, stability, and robustness than a conventional single-acceleration-error-input （SAEI） PID controller for the active suspension.

关键词： vehicle active suspension PID two-acceleration-error-input optimization

active suspension Control Design & Simulation Based on Backstepping

在线全文

学校读者我要写书评

暂无评论

微计算机信息 2009年第13期 224-226页

作者： (Mechanical Engineering School of University of Science & Technology Beijing,Beijing 100083,China) CHEN Bing ZENG Ming YIN Zhong-jun

Vehicle suspension system is a typical nonlinear *** control theory is applicable to control of nonlinear *** this article,an active suspension system model based on backstepping control strategy was *** was proved that the active suspension system posed property of global asymptotic stability and could reach the goal of avoiding suspension stroke when vehicle met a road *** research of a vehicle single tire suspension traveling over road bump was *** results demonstrated that performance of active suspension system with backstepping control strategy presented in the article was superior over active suspension with optimal control and passive suspension and avoided suspension stroke,when vehicle traveled over road bump.

关键词： Vehicle active suspension Nonlinear Backstepping Simulation