检索结果-南通市图书馆

Fuzzy Controller-Based Design and Simulation of an automatic parking System

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

Journal of Software Engineering and Applications 2023年第9期16卷 505-520页

作者： Meiyan Gao Yuanzhou Wei Ya He Dan Zhang Yuanhao Tian Bolin Huang Changyang Zheng College of Engineering and Computing Florida International University Miami USA School of Economics Capital University of Economics and Business Beijing China School of Information Science and Engineering Shandong University Jinan China Steven J. Green School of International & Public Affairs Florida International University Miami USA Viterbi School of Engineering University of Southern California Los Angeles USA School of Engineering Brown University Rhode Island USA

With the development of automatic driving and fuzzy theory, people pay more and more attention to the application of fuzzy logic in engineering technology. The automatic parking module in the automatic driving system has always been the focus of research. automatic parking modules can greatly assist drivers in parking operations, greatly reduce parking difficulties and make people more convenient and fast parking. In this paper, an automatic parking system based on the fuzzy controller is proposed. The fuzzy controller of automatic parking system is constructed by using fuzzy theory, and the robustness of the whole system is examined by fuzzy logic. Firstly, the vehicle motion rules and trajectory changes are analyzed in detail, and the real parking lot model is simulated. Then, the input and output variables of the whole system are analyzed by fuzzy theory and the membership function is constructed. Based on the experience of human experts, the parking rules are tested and summarized, and a reasonable and practical rule base is established. Finally, MATLAB is used to code, build the visual interface of parking lot and vehicles, and draw the cyclic iterative function to detect the vehicle position and direction angle, so as to act as a sensor. The results show that using a fuzzy controller to construct an automatic parking system can effectively improve the parking level.

关键词： automatic parking Controller Theory Fuzzy Logic MATLAB System Optimization

Simulation Study on automatic parking Control System

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

International Journal of Technology Management 2015年第3期 124-126页

作者： dongling Peng Jie Xiao Department of automation Wuchang University of Technology Information and Engeneering school Wuhan HuBei 430223 ER. China

Nowadays the actual parking situation is becoming more and more complex. Because of the inexpert driving skill of novice drivers, there is often collision in the parking process. Fortunately, with the development of path planning and intelligent control technology, the appearance of the automatic parking control system will provide a good solution to the narrow parking problems. Here with the help of MATLAB/Simulink, we build a simulation platform, and then respectively simulate the parallel parking and vertical parking process, to seek for the best initial parking point and path.

关键词： Simulation automatic parking Fuzzy Control MATLAB

A Practical Path Planning Strategy for automatic parking in Constrained parking Space

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

A Practical Path Planning Strategy for Automatic Parking in ...

2018中国汽车工程学会年会

作者： LU Hui XU Kangxi WANG Huanran QI Cheng WANG Dazhi Software Engineering Department SAIC Motor Corporation Limited Passenger Vehicle Co.Ltd.

A practical automatic parking strategy of path planning in constrained parking space is stated in this *** path planning algorithm is designed by reversing a retrieving path that consists of two ***,a sequence of forward and backward moving is implemented from the final parking position,until the vehicle reaches a configuration of states from which it can pull out of the parking slot with one ***,a continuous path is generated from this configuration to the vehicle original *** constraints of parking space and vehicle dynamics are considered in both steps.

关键词： automatic parking motion planning path planning vehicle motion control

Ultrasonic Array Based Obstacle Detection in automatic parking

在线全文

cnki会议

学校读者我要写书评

暂无评论

Ultrasonic Array Based Obstacle Detection in Automatic Parki...

2013年中国智能自动化学术会议

作者： Huihai Cui Jinze Song Daxue Liu College of Mechatronics Engineering and Automation National University of Defense Technology

An ultrasonic array for automatic parking is designed and accomplished in this *** details of software and hardware of the system were presented in the article,and the system was validated in a refitted vehicle by automatic parking. The detection result of the ultrasonic array was contrast with that of *** system showed the advantages in the robust,economy,environments irrespective, and easy to widely application.

关键词： Ultrasonic array automatic parking Obstacle detection LADAR

A Trajectory Planning Method based on B-spline Algorithm for automatic parking Systems

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Trajectory Planning Method based on B-spline Algorithm for...

作者： Mao Ye Xin Ji Yexin Zhao School of Automobile Chang’an University

This paper proposes a Trajectory planning method for automatic parallel parking *** planning method consists of two ***,the feasible area of parking,is used to find the starting position and azimuth of the ***,planning the parking *** vehicle can be safely and accurately parked in the parking space,with the avoidance of sudden changes of speed and steering *** experimental results show that this algorithm finds a suitable starting point and parking trajectory in each parking space environment.

关键词： automotive engineering automatic parking B-spline theory Differential flat theory

Development of A Practical automatic parking Technology for Automobiles

在线全文

cnki会议

学校读者我要写书评

暂无评论

Development of A Practical Automatic Parking Technology for ...

第25届中国控制会议

作者： Dao Minhquan Department of Electronics and Mechanical Engineering Chiba University 1-33 Yayoi-choInage-kuChiba 263-8522Japan

＜正＞This paper aims at developing a practical automatic parking technology for 4-wheeled cars,which is able to park cars subject to parking space constraint and steering angle saturation. The feedback law is designed based on the switching control method proposed by the authors for chained systems. The focus of this paper is to prove a condition on the state under which the stability is guaranteed even when the steering angle is saturated. The proposed method is validated by numerous parking experiments.

关键词： automatic parking steering angle saturation parking space constraint switching control

Guidance Control for Parallel parking Tasks

在线全文

cnki会议

学校读者我要写书评

暂无评论

IEEE/CAA Journal of automatica Sinica 2020年第1期7卷 301-306页

作者： Jiyuan Tan Chunling Xu Li Li Fei-Yue Wang Dongpu Cao Lingxi Li Key Laboratory of Urban Intelligent Traffic Control Technology North China University of TechnologyBeijing 100144China Beijing Transport Institute Beijing 100073China Department of Automation BNRistTsinghua UniversityBeijing 100084China Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100080China Driver Cognition and Automated Driving Laboratory University of WaterlooWaterloo N2L 3G1Canada Department of Electrical and Computer Engineering Purdue School of Engineering and TechnologyIndiana University-Purdue University IndianapolisIndiana 46202-5132 USA

parking into small berths remains difficult for unskilled drivers. Researchers had proposed different automatic parking systems to solve this problem. The first kind of strategies(called parking trajectory planning) designs a detailed reference trajectory that links the start and ending points of a special parking task and let the vehicle track this reference trajectory so as to park into the berth. The second kind of strategies(called guidance control) just characterizes several regimes of driving actions as well as the important switching points in certain rule style and let the vehicle follows the pre-selected series of actions so as to park into the berth. parking guidance control is simpler than parking trajectory planning. However, no studies thoroughly validated parking guidance control before. In this paper, a new automatic parking method is presented, which could characterize the desired control actions directly. Then the feasibility is examined carefully. Tests show that a simple parking guidance control strategy can work in most parallel parking tasks, if the available parking berth is not too small. This finding helps to build more concise automatic parking systems that can efficiently guide human drivers.

关键词： automatic parking guidance control trajectory planning

Path Planning and Tracking Control for parking via Soft Actor-Critic Under Non-Ideal Scenarios

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

IEEE/CAA Journal of automatica Sinica 2024年第1期11卷 181-195页

作者： Xiaolin Tang Yuyou Yang Teng Liu Xianke Lin Kai Yang Shen Li IEEE the College of Mechanical and Vehicle Engineering Chongqing UniversityChongqing 400044China the Clinical Research Center and Medical Pathology Center Chongqing University Three Gorges HospitalChongqing UniversityWanzhou 404000 the Department of Automotive and Mechatronics Engineering Ontario Tech UniversityOshawa ON LIG OC5Canada the School of Civil Engineering Tsinghua UniversityBeijing 100084China

parking in a small parking lot within limited space poses a difficult task. It often leads to deviations between the final parking posture and the target posture. These deviations can lead to partial occupancy of adjacent parking lots, which poses a safety threat to vehicles parked in these parking lots. However, previous studies have not addressed this issue. In this paper, we aim to evaluate the impact of parking deviation of existing vehicles next to the target parking lot(PDEVNTPL) on the automatic ego vehicle(AEV) parking, in terms of safety, comfort, accuracy, and efficiency of parking. A segmented parking training framework(SPTF) based on soft actor-critic(SAC) is proposed to improve parking performance. In the proposed method, the SAC algorithm incorporates strategy entropy into the objective function, to enable the AEV to learn parking strategies based on a more comprehensive understanding of the environment. Additionally, the SPTF simplifies complex parking tasks to maintain the high performance of deep reinforcement learning(DRL). The experimental results reveal that the PDEVNTPL has a detrimental influence on the AEV parking in terms of safety, accuracy, and comfort, leading to reductions of more than 27%, 54%, and 26%respectively. However, the SAC-based SPTF effectively mitigates this impact, resulting in a considerable increase in the parking success rate from 71% to 93%. Furthermore, the heading angle deviation is significantly reduced from 2.25 degrees to 0.43degrees.

关键词： automatic parking control strategy parking deviation(APS) soft actor-critic(SAC)

parking Path Planning Algorithm for Mine Rubber Tire Vehicle Based on Single-step Sampling

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Parking Path Planning Algorithm for Mine Rubber Tire Vehicle...

第43届中国控制会议

作者： Xiaozhi Li Yunfeng Liang Rui Guo Jinguo Wang Guoqiang Yang Shuangjun Bai Radar Research Lab School of Information and ElectronicsBeijing Institute of Technology Key Laboratory of Electronic and Information Technology in Satellite Navigation (Beijing Institute of Technology) Ministry of Education Chinacoal Shannxi Yulin Energy & Chemical Co. Ltd China Coal Electric Co. Ltd

Addressing the path planning challenge for mine rubber tire vehicles in vertical,oblique,and parallel underground parking scenarios,this paper proposes a two-stage parking path planning algorithm based on single-step sampling ***,the parking path is conceptualized in reverse,comprising the Entry phase and Adjustment phase,with the Runge-Kutta method employed for discretizing the path *** algorithm employs the discrepancy between the vehicle's current and target poses and the smoothness of the path as the cost function,transforming the parking path planning problem into an optimization control *** the single-step sampling optimization approach,the problem is solved by sampling control variables within the feasible domain,aiming to minimize the cost function associated with each state transition after discretization,thereby determining the sequence of control variables and iteratively constructing the parking path from the endpoint to the starting *** results of simulation and real vehicle test prove that the proposed algorithm has strong adaptability to various parking scenarios,and can reduce the algorithm computation while ensuring the quality of path planning,which meets the real-time requirement in parking scenarios.

关键词： automatic parking Path planning Single-step sampling optimization Cost function Optimal control