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Keqiang LI, Feng GAO, Shengbo Eben LI, Yang ZHENG, Hongbo GAO
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 354-367 doi: 10.1007/s11465-018-0486-x
This study presents a distributed H-infinity control method for uncertain platoons with dimensionally and structurally unknown interaction topologies provided that the associated topological eigenvalues are bounded by a predesigned range. With an inverse model to compensate for nonlinear powertrain dynamics, vehicles in a platoon are modeled by third-order uncertain systems with bounded disturbances. On the basis of the eigenvalue decomposition of topological matrices, we convert the platoon system to a norm-bounded uncertain part and a diagonally structured certain part by applying linear transformation. We then use a common Lyapunov method to design a distributed H-infinity controller. Numerically, two linear matrix inequalities corresponding to the minimum and maximum eigenvalues should be solved. The resulting controller can tolerate interaction topologies with eigenvalues located in a certain range. The proposed method can also ensure robustness performance and disturbance attenuation ability for the closed-loop platoon system. Hardware-in-the-loop tests are performed to validate the effectiveness of our method.
关键词: automated vehicles platoon distributed control robustness
大规模车辆排队的调度与规划技术的进展与挑战 Review
Jing Hou, Guang Chen, Jin Huang, Yingjun Qiao, Lu Xiong, Fuxi Wen, Alois Knoll, Changjun Jiang
《工程(英文)》 2023年 第28卷 第9期 页码 26-48 doi: 10.1016/j.eng.2023.01.012
Through vehicle-to-vehicle (V2V) communication, autonomizing a vehicle platoon can significantly reduce the distance between vehicles, thereby reducing air resistance and improving road traffic efficiency. The gradual maturation of platoon control technology is enabling vehicle platoons to achieve basic driving functions, thereby permitting large-scale vehicle platoon scheduling and planning, which is essential for industrialized platoon applications and generates significant economic benefits. Scheduling and planning are required in many aspects of vehicle platoon operation; here, we outline the advantages and challenges of a number of the most important applications, including platoon formation scheduling, lane-change planning, passing traffic light scheduling, and vehicle resource allocation. This paper's primary objective is to integrate current independent platoon scheduling and planning techniques into an integrated architecture to meet the demands of large-scale platoon applications. To this end, we first summarize the general techniques of vehicle platoon scheduling and planning, then list the primary scenarios for scheduling and planning technique application, and finally discuss current challenges and future development trends in platoon scheduling and planning. We hope that this paper can encourage related platoon researchers to conduct more systematic research and integrate multiple platoon scheduling and planning technologies and applications.
关键词: Autonomous vehicle platoon Autonomous driving Connected and automated vehicles Scheduling and planning techniques
赵世佳,徐可,薛晓卿,乔英俊
《中国工程科学》 2019年 第21卷 第3期 页码 108-113 doi: 10.15302/J-SSCAE-2019.03.006
新一轮科技和产业变革加速融合,智能网联汽车为消费者提供了便利的使用方式、丰富的应用内容和安全的驾驶环境,但同时,由智能化、网联化带来的信息安全问题也面临着多重风险。近年来黑客攻击频发,信息安全问题不仅会影响行车安全、造成用户数据泄露,更使国家安全受到威胁。安全问题已经引发各国政府的高度重视,美国、欧洲和日本等主要发达国家和地区都在积极行动。在此背景下,我国应尽快推动统筹智能网联汽车信息安全的发展和管理,积极布局、合理规划,全力保障智能网联汽车信息安全,推动智能网联汽车的稳步发展。
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 887-900 doi: 10.1007/s11465-021-0653-3
关键词: electric vehicle nonsynchronizer automated mechanical transmission (NSAMT) planetary gear coordinated shift control dynamic tooth alignment
冲突场景下基于事件触发的多车协同控制与实验验证 Research Article
胡展溢1,乔英俊2,3,李星宇1,黄晋1,贾一帆1,钟志华2
《信息与电子工程前沿(英文)》 2022年 第23卷 第11期 页码 1700-1713 doi: 10.1631/FITEE.2100504
队列系统在提高交通吞吐量和道路安全方面极具潜力,其被广泛用于高速公路上智能网联汽车的协同控制。受队列控制的启发,虚拟队列可以极大地简化冲突场景下智能网联多车系统的协同行驶。车车通信是虚拟队列系统的重要组成部分。在通信资源有限的情况下,大量数据传输必然会出现传输延迟、丢包等缺陷。因此,需要避免不必要的传输,从而建立一个可靠的无线网络。针对这一问题,本文提出一种基于事件触发的鲁棒控制方法,在保证时变不确定性条件下虚拟队列系统稳定性的同时,减少通信资源的利用。本文解析地证明了闭环系统的一致有界性、一致最终有界性和队列稳定性。本文所设计的触发条件考虑了边界信息的不确定性,使阈值估计更加合理。仿真和实验结果表明,该方法可以在多车协作的同时大大减少数据传输。阈值的选取影响跟踪能力和通信负担,其优化方法值得在今后的研究中探索。
边明远,李克强
《中国工程科学》 2018年 第20卷 第1期 页码 52-58 doi: 10.15302/J-SSCAE-2018.01.008
智能网联汽车是以信息技术为代表的新科技变革趋势下产生的一种新兴产业形态。由于体现为跨行业多领域新技术的深度交叉融合,智能网联汽车的产业化发展必定能带动相关行业的协同进步,从而推动中国制造业的转型升级,实现我国由汽车大国向汽车强国的转变。本文阐述了建设汽车强国的本质内涵以及发展智能网联汽车对建设汽车强国的意义,分析了中国发展智能网联汽车具备的基础和面临的问题,并提出了以智能网联汽车为载体的建设汽车强国战略的顶层设计方案。
基于车联网的信号灯协同控制 Article
李婉, 班学钢
《工程(英文)》 2020年 第6卷 第12期 页码 1463-1472 doi: 10.1016/j.eng.2020.10.009
本文提出了一个基于车联网(CV)环境的交通主干道信号灯协同控制的模型及其求解方法。首先, 我们将信号优化与协同控制问题归结为一个混合整数非线性规划(MINLP)。通过考虑单个车辆轨迹的最小油耗和行程时间求解最优相位持续时间和相位差。由于模型的复杂性,我们将问题分解为两个层次:使用动态规划(DP)优化相位持续时间的交叉路口层,以及用于优化所有交叉路口相位差的干道交通层。同时,我们开发了一种基于预测的方法以求解上述双层优化模型。在各种场景下,我们利用交通模拟对模型进行了测试。与传统的感应信号灯协同控制相比,求解MINLP和双层优化模型生成的信号时序规划可以合理地提升交通信号灯控制性能和路网的服务水平。在高密度的交通流量的环境中并考虑不同车辆类型时,与感应信号灯相比,上述双层优化模型的求解法使路网总成本降低了3.8%,MINLP的应用使系统总成本降低了5.9%。这也表明对于交通密度相对较高的干道交通来说,本文提出的协同控制方案效果显著。而仿真结果也表明对于同时拥有主要道路和次要道路的交叉路口而言,面向主要道路进行的协同控制对次要道路上的车辆几乎没有影响。
李骏, 邵文博, 王红
《工程(英文)》 2023年 第31卷 第12期 页码 27-30 doi: 10.1016/j.eng.2023.09.008
智能网联汽车(ICV)是全球汽车工业转型和发展的关键战略焦点,对提升驾驶安全、改善交通效率和实现低碳交通具有重要意义。然而,在ICV的发展中,由于系统复杂性提升,以及动态和挑战性的场景层出不穷,预期功能安全(SOTIF)问题已成为ICV研究和商业化面临的最关键障碍之一。本研究从全球ICV相关事故出发,强调了SOTIF问题的紧迫性,并总结了SOTIF发展面临的关键挑战,包括ICV的长尾场景问题、系统复杂性和多样性,以及人工智能算法的不透明性和不确定性。为解决这些挑战,提出了包含离线安全设计与开发、车载安全监测与防护以及主动持续学习与成长的覆盖ICV全生命周期的中国解决方案,为推动ICV的安全产业化提供重要指导建议。
关键词: 智能网联汽车 预期功能安全(SOTIF) 离线开发 车载防护 持续学习
Modeling and control of photovoltaic energy conversion connected to the grid
Rebei NAJET, Ben Ghanem BELGACEM, Hasnaoui OTHMAN
《能源前沿(英文)》 2012年 第6卷 第1期 页码 35-46 doi: 10.1007/s11708-012-0169-y
关键词: photovoltaic generator (PVG) maximum power point tracker grid-connected static converters
Izabela NIELSEN,Robert WÓJCIK,Grzegorz BOCEWICZ,Zbigniew BANASZAK
《信息与电子工程前沿(英文)》 2016年 第17卷 第4期 页码 338-347 doi: 10.1631/FITEE.1500359
关键词: Automated guided vehicles (AGVs) Scheduling Multimodal process Fuzzy constraints Optimization
Automated synthesis of steady-state continuous processes using reinforcement learning
《化学科学与工程前沿(英文)》 2022年 第16卷 第2期 页码 288-302 doi: 10.1007/s11705-021-2055-9
关键词: automated process synthesis flowsheet synthesis artificial intelligence machine learning reinforcement learning
Generating capacity adequacy evaluation of large-scale, grid-connected photovoltaic systems
Amir AHADI,Seyed Mohsen MIRYOUSEFI AVAL,Hosein HAYATI
《能源前沿(英文)》 2016年 第10卷 第3期 页码 308-318 doi: 10.1007/s11708-016-0415-9
关键词: adequacy assessment Markov method large-scale grid-connected photovoltaic(PV) systems long-term operation
Bahaa Eddine MNEYMNEH, Mohamad ABBAS, Hiam KHOURY
《工程管理前沿(英文)》 2018年 第5卷 第2期 页码 227-239 doi: 10.15302/J-FEM-2018071
关键词: construction safety personal protective equipment hardhat computer vision
《结构与土木工程前沿(英文)》 doi: 10.1007/s11709-023-0003-0
关键词: geopolymer lunar regolith simulant 3D printing rheology printability
Research on the theory and application of adsorbed natural gas used in new energy vehicles: A review
Zhengwei NIE,Yuyi LIN,Xiaoyi JIN
《机械工程前沿(英文)》 2016年 第11卷 第3期 页码 258-274 doi: 10.1007/s11465-016-0381-2
Natural gas, whose primary constituent is methane, has been considered a convincing alternative for the growth of the energy supply worldwide. Adsorbed natural gas (ANG), the most promising methane storage method, has been an active field of study in the past two decades. ANG constitutes a safe and low-cost way to store methane for natural gas vehicles at an acceptable energy density while working at substantially low pressures (3.5–4.0 MPa), allowing for conformable store tank. This work serves to review the state-of-the-art development reported in the scientific literature on adsorbents, adsorption theories, ANG conformable tanks, and related technologies on ANG vehicles. Patent literature has also been searched and discussed. The review aims at illustrating both achievements and problems of the ANG technologies-based vehicles, as well as forecasting the development trends and critical issues to be resolved of these technologies.
关键词: adsorbed natural gas (ANG) adsorbent adsorption theory conformable tank natural gas vehicles (NGVs)
标题 作者 时间 类型 操作
Robust cooperation of connected vehicle systems with eigenvalue-bounded interaction topologies in the
Keqiang LI, Feng GAO, Shengbo Eben LI, Yang ZHENG, Hongbo GAO
期刊论文
大规模车辆排队的调度与规划技术的进展与挑战
Jing Hou, Guang Chen, Jin Huang, Yingjun Qiao, Lu Xiong, Fuxi Wen, Alois Knoll, Changjun Jiang
期刊论文
Coordinated shift control of nonsynchronizer transmission for electric vehicles based on dynamic tooth
期刊论文
Modeling and control of photovoltaic energy conversion connected to the grid
Rebei NAJET, Ben Ghanem BELGACEM, Hasnaoui OTHMAN
期刊论文
Multimodal processes optimization subject to fuzzy operation time constraints: declarative modeling approach
Izabela NIELSEN,Robert WÓJCIK,Grzegorz BOCEWICZ,Zbigniew BANASZAK
期刊论文
Generating capacity adequacy evaluation of large-scale, grid-connected photovoltaic systems
Amir AHADI,Seyed Mohsen MIRYOUSEFI AVAL,Hosein HAYATI
期刊论文
Evaluation of computer vision techniques for automated hardhat detection in indoor construction safety
Bahaa Eddine MNEYMNEH, Mohamad ABBAS, Hiam KHOURY
期刊论文
hardening performance of three-dimensionally-printed geopolymer based on lunar regolith simulant for automated
期刊论文