2021 6th International Conference on Transportation Information and Safety (ICTIS)最新文献_第7页

A Modularized Event-driven Simulation for a Shared Electric Vehicle System that Takes into Account Range Anxiety and Nonlinear Charging 考虑里程焦虑和非线性充电的共享电动汽车系统模块化事件驱动仿真

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798627

Yan Li, Shuiwang Chen, X. Yu, Yangsheng Jiang, Lu Hu, Wenyao An

引用次数: 0

Assessment of external costs of transportation using transport network models 利用运输网络模型评估运输的外部成本

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798686

T. Santos, M. Ramalho, Carlos Soares

引用次数: 1

Research on Hydrogenation Process Performance of High Pressure Hydrogen Storage Tank on Passenger Ship 客船高压储氢罐加氢过程性能研究

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798490

Xiaoyu Wang, Yupeng Yuan, Liang Tong, Zinuo Wang, B. Shen

{"title":"Research on Hydrogenation Process Performance of High Pressure Hydrogen Storage Tank on Passenger Ship","authors":"Xiaoyu Wang, Yupeng Yuan, Liang Tong, Zinuo Wang, B. Shen","doi":"10.1109/ICTIS54573.2021.9798490","DOIUrl":"https://doi.org/10.1109/ICTIS54573.2021.9798490","url":null,"abstract":"In an environment where the international community vigorously advocates “clean energy” and “new energy green ships”, the US new energy high-speed passenger ferry “SF-BREEZE” is used as the object, and COMSOL simulation software is used to build the hydrogen storage tank model of the ship. In the simulation experiment under the conditions, the influence of the charging flow rate on the main hydrogen storage performance during the hydrogen filling process of the ship hydrogen storage tank was studied, and the influence of the charging flow rate on the main performance of the hydrogen storage tank was obtained. The simulation results show that the change of the mass flow rate at the hydrogen injection port will cause significant changes in the temperature, SOC, and pressure in the hydrogen storage tank. When the mass flow rate increases, the two-dimensional average temperature in the hydrogen storage tank and the temperature of each detection point show an upward trend, and when the same filling quality is met, the variable inlet mass flow rate used in this experiment is Compared with the constant mass flow at the inlet, the range of temperature rise is smaller. During the filling process, the mass flow curve has a large value in the earl and mid-term, and gradually decreases in the middle and late periods to obtain better hydrogen storage performance. Within the safety standard range of the ship's hydrogen charging temperature of 358K, the average mass flow can be maximized during the hydrogen charging process to obtain a higher SOC value.","PeriodicalId":253824,"journal":{"name":"2021 6th International Conference on Transportation Information and Safety (ICTIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130917964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on SOH Prediction Method of New Energy Vehicle Power Battery 新能源汽车动力电池SOH预测方法研究

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798578

Zeqi Yu, Hanming Chen, Chongwen Wang

{"title":"Research on SOH Prediction Method of New Energy Vehicle Power Battery","authors":"Zeqi Yu, Hanming Chen, Chongwen Wang","doi":"10.1109/ICTIS54573.2021.9798578","DOIUrl":"https://doi.org/10.1109/ICTIS54573.2021.9798578","url":null,"abstract":"The battery state of health (SOH) prediction is an important part of the new energy vehicle battery management system (BMS). Accurately predicting the SOH of the lithium-ion battery is of great significance for evaluating the health of the new energy vehicle power system and the remaining service life. The existing models for estimating the SOH of lithium-ion batteries have much room for improvement in terms of prediction accuracy and applicability. This article addresses the general accuracy and generalization problems of the existing lithium battery SOH prediction models. This paper proposes a lithium battery SOH prediction model based on the Temporal Convolutional Network, and uses particle swarm algorithm to optimize the model's hyper parameters. The model has high prediction accuracy on a variety of battery datasets. Subsequently, the transfer learning method is used to transfer the Temporal Convolutional Network model to the actual working condition data set, and the training set size is effectively reduced under the condition that the model prediction accuracy remains unchanged. Combined with the wavelet decomposition method, the Temporal Convolutional Network model is improved to achieve a fast and accurate estimation of the SOH of lithium batteries with fewer cycles.","PeriodicalId":253824,"journal":{"name":"2021 6th International Conference on Transportation Information and Safety (ICTIS)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130091684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Marine VSG Grid-connected Pre-synchronization Control Strategy 船舶VSG并网预同步控制策略研究

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798483

W. Guo, Xujing Tang, Yi-Bin Xu, Tianliu Wang

{"title":"Research on Marine VSG Grid-connected Pre-synchronization Control Strategy","authors":"W. Guo, Xujing Tang, Yi-Bin Xu, Tianliu Wang","doi":"10.1109/ICTIS54573.2021.9798483","DOIUrl":"https://doi.org/10.1109/ICTIS54573.2021.9798483","url":null,"abstract":"Compared with the land power grid, the capacity of the ship power system is smaller, and the frequent switching and start/stop of high-power converter devices and nonlinear loads will lead to the ship power grid in a non-ideal state with harmonics. At this time, the grid connection of photovoltaic power supply based on Virtual Synchronous Generator (VSG) control technology will lead to poor phase-locking performance and impulse current. However, due to the existence of phase-locked loop (PLL), the speed and accuracy of pre-synchronization of traditional VSG pre-synchronization con-trol strategy are easy to be disturbed when there are a large number of harmonics in ship power grid. In order to solve this problem, an improved pre-synchronization control strategy of marine VSG is proposed in this paper. Two PI regulators are used to replace PLL to reduce control parameters and effectively improve the speed of VSG pre-synchronization. Finally, the effect of this method on improving the grid-connected pow-er quality of marine distributed photovoltaic inverter is verified by simulation and experiment.","PeriodicalId":253824,"journal":{"name":"2021 6th International Conference on Transportation Information and Safety (ICTIS)","volume":"462 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122496691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

An Asynchronous Cooperative Signal Control Framework in Urban Road Network 城市道路网络中的异步协同信号控制框架

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798689

Jichen Zhu, Cheng-qing Ma, Xiaoguang Yang, Jintao Lai, Zhen Zhang

引用次数: 0

The impact of COVID-19 on subway passenger flow in Chicago: A study of spatial variation of influencing factors 新冠肺炎疫情对芝加哥地铁客流的影响:影响因素的空间分异研究

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798626

Xinan Zhou, Xiaoqian Lu, Yicheng Song, Hongtai Yang

{"title":"The impact of COVID-19 on subway passenger flow in Chicago: A study of spatial variation of influencing factors","authors":"Xinan Zhou, Xiaoqian Lu, Yicheng Song, Hongtai Yang","doi":"10.1109/ICTIS54573.2021.9798626","DOIUrl":"https://doi.org/10.1109/ICTIS54573.2021.9798626","url":null,"abstract":"At the beginning of 2020, with the rapid spread of COVID-19 around the world, the passenger flow of subway has suffered from a serious impact. Based on the subway passenger flow data in Chicago, this article analyzes the impact of COVID-19 on rail transit passenger flow. ArcGIS is used to visualize the spatial-temporal distribution of the passenger flow of different stations during different time periods. Based on the fluctuation characteristics of passenger flow before and after the outbreak of COVID-19, one of the deep learning methods, the LSTM (Long-Short Term Memory) neural network model, is constructed to predict the passenger flow of each station in the scenario of no virus. The decline of passenger flow is calculated for each station. Stepwise regression model is constructed to determine factors that explain the decline in passenger flow, and significant factors are obtained: the original passenger flow, number of houses and jobs within 800m buffer zone, number of bus stops within 800m buffer zone, whether the station is a transfer station, distance from the station to the city center, and the number of low-income people. The results of the study show that after the outbreak of COVID-19, the passenger flow of the subway in Chicago experience a “cliff-like” decline in the short term. The passenger flow in most areas dropped by more than 80%, and the passenger flow of some severely impacted stations dropped by more than 90%. Characteristics of the station and built environment factors of different stations influence the decline of passenger flow.","PeriodicalId":253824,"journal":{"name":"2021 6th International Conference on Transportation Information and Safety (ICTIS)","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127389697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Data-driven lithium-ion battery remaining life prediction on actual operating vehicles 数据驱动的实际车辆锂离子电池剩余寿命预测

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798691

Xianwu Gong, Yucheng Ma, Qiuqian Mu, Lu Ding, Meng Li, Jian Ma

引用次数: 0

Evolutionary game model of strategic transport passages in the context of Belt and Road Initiative: A case of the Strait of Hormuz “一带一路”背景下战略交通通道演化博弈模型——以霍尔木兹海峡为例

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798568

Daozheng Huang, Shun Wang, S. Loughney, Jin Wang

引用次数: 0

Formation controller design for heterogeneous ships based on sliding mode control 基于滑模控制的异构舰船编队控制器设计

2021 6th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2021-10-22 DOI: 10.1109/ICTIS54573.2021.9798564

Xu You, Jialun Liu, F. Ma

引用次数: 0