IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium最新文献_第6页

Effectiveness of Climbing Lanes for Slow-Moving Vehicles When Riding Uphill: A Microsimulation Study 慢行车辆上坡时爬坡车道的有效性:微观模拟研究

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-06-28 DOI: 10.3390/vehicles5030041

Giulia Del Serrone, G. Cantisani, Riccardo Grilli, P. Peluso

{"title":"Effectiveness of Climbing Lanes for Slow-Moving Vehicles When Riding Uphill: A Microsimulation Study","authors":"Giulia Del Serrone, G. Cantisani, Riccardo Grilli, P. Peluso","doi":"10.3390/vehicles5030041","DOIUrl":"https://doi.org/10.3390/vehicles5030041","url":null,"abstract":"Long uphill stretches of single-carriageway rural roads with one lane per travel direction may reduce the Level of Service (LoS), due to the decreased speed of heavy vehicles. In those circumstances, a slowdown of traffic, resulting in the formation of platoons, may be generated due to the difficulty of performing overtaking maneuvers safely. To solve this critical issue, an additional (climbing) lane for slow vehicles may be included in the road platform. This study aims to evaluate the effectiveness of such climbing lanes in a real case in Italy (National Road n. 4 “Via Salaria”—around 44+000 km). Using a microsimulation model implemented in VISSIM, the study analyzes speeds and travel times, delays, and queuing waiting times, comparing the Actual Scenario (AS) without climbing lanes, with two counterfactual scenarios: the first one (CS1) with three stretches of climbing lanes, and the second one (CS2), with just two stretches, in which the first two additional lanes of CS1 are merged together. The obtained results confirm the effectiveness of installing climbing lanes on road sections with the described characteristics, and the potential of microsimulation models also to carry out such kind of evaluations.","PeriodicalId":73282,"journal":{"name":"IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89297585","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

Synthesizing Vehicle Speed-Related Features with Neural Networks 用神经网络综合车速相关特征

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-06-26 DOI: 10.3390/vehicles5030040

Michal Krepelka, J. Vraný

{"title":"Synthesizing Vehicle Speed-Related Features with Neural Networks","authors":"Michal Krepelka, J. Vraný","doi":"10.3390/vehicles5030040","DOIUrl":"https://doi.org/10.3390/vehicles5030040","url":null,"abstract":"In today’s automotive industry, digital technology trends such as Big Data, Digital Twin, and Hardware-in-the-loop simulations using synthetic data offer opportunities that have the potential to transform the entire industry towards being more software-oriented and thus more effective and environmentally friendly. In this paper, we propose generative models to synthesize car features related to vehicle speed: brake pressure, percentage of the pressed throttle pedal, engaged gear, and engine RPM. Synthetic data are essential to digitize Hardware-in-the-loop integration testing of the vehicle’s dashboard, navigation, or infotainment and for Digital Twin simulations. We trained models based on Multilayer Perceptron and bidirectional Long-Short Term Memory neural network for each feature. These models were evaluated on a real-world dataset and demonstrated sufficient accuracy in predicting the desired features. Combining our current research with previous work on generating a speed profile for an arbitrary trip, where Open Street Map data and elevation data are available, allows us to digitally drive this trip. At the time of writing, we are unaware of any similar data-driven approach for generating desired speed-related features.","PeriodicalId":73282,"journal":{"name":"IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium","volume":"415 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74126324","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: 2

Validation of Automated Driving Function Based on the Apollo Platform: A Milestone for Simulation with Vehicle-in-the-Loop Testbed 基于Apollo平台的自动驾驶功能验证:车辆在环试验台仿真的里程碑

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-06-16 DOI: 10.3390/vehicles5020039

Hexuan Li, V. Makkapati, Li Wan, E. Tomasch, H. Hoschopf, A. Eichberger

{"title":"Validation of Automated Driving Function Based on the Apollo Platform: A Milestone for Simulation with Vehicle-in-the-Loop Testbed","authors":"Hexuan Li, V. Makkapati, Li Wan, E. Tomasch, H. Hoschopf, A. Eichberger","doi":"10.3390/vehicles5020039","DOIUrl":"https://doi.org/10.3390/vehicles5020039","url":null,"abstract":"With the increasing complexity of automated driving features, it is crucial to adopt innovative approaches that combine hardware and software to validate prototype vehicles in the early stages of development. This article demonstrates the effectiveness of a Vehicle-in-the-Loop (ViL) testbed in conducting dynamic tests of vehicles equipped with highly automated driving functions. The tests are designed to replicate critical driving scenarios from real-world environments on the ViL testbed. In this study, the Apollo platform is utilized to develop an automated driving function that can perceive the surrounding traffic in a virtual environment and generate feasible trajectories. This is achieved with the help of a multibody simulation platform. The control commands from the simulated driving function are then transmitted to the real vehicle to execute the planned action. The results demonstrate that critical traffic scenarios can be replicated more safely and repeatedly on the ViL testbed. Meanwhile, the Apollo-based driving function can effectively and comfortably cope with critical scenarios. Importantly, this study marks a significant milestone for the Apollo platform as it is implemented in a real-time system and tested on a ViL testbed.","PeriodicalId":73282,"journal":{"name":"IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82560302","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

Speed-Adaptive Model-Free Path-Tracking Control for Autonomous Vehicles: Analysis and Design 自动驾驶汽车无模型自适应路径跟踪控制:分析与设计

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-06-13 DOI: 10.3390/vehicles5020038

Marcos Moreno-Gonzalez, Antonio Artuñedo, J. Villagrá, C. Join, M. Fliess

引用次数: 4

Modernization of Fire Vehicles with New Technologies and Chemicals 用新技术和化学品实现消防车辆现代化

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-06-04 DOI: 10.3390/vehicles5020037

C. Un, K. Aydın

{"title":"Modernization of Fire Vehicles with New Technologies and Chemicals","authors":"C. Un, K. Aydın","doi":"10.3390/vehicles5020037","DOIUrl":"https://doi.org/10.3390/vehicles5020037","url":null,"abstract":"Fire is a stable exothermic chain reaction of flammable materials brought together with oxygen or other oxidizing substances under certain conditions, occurring uncontrollably. Fire vehicles interfere with many types of fire, such as wildfires, factory fires, building fires, etc. During this intervention, fire vehicles generally use water or foam. In this study, new effective fire suppression applications are investigated. Thermal camera applications in fire trucks and also new extinguishing agents—boron-based chemicals—were tested in forest fire simulations. In these experiments, it was observed that the thermal camera detected the fire as soon as it occurred. It seemed appropriate to use thermal cameras for all types of fire vehicles (foam trucks, water tankers, rescue trucks, etc.). It was seen that the thermal camera application could detect and monitor the fire during the fire-extinguishing work of the firefighters. The boron-based fire suppressant had a better extinguishing and cooling effect than water in the experiments. Compared to the water used as a traditional method, the liquid boron-based extinguisher provided 22% faster—while the solid boron-based extinguisher provided 42% faster—suppression and cooling. With three separate experiments, it is predicted that thermal camera applications and the use of boron-based extinguishers in fire vehicles can lead to an effective and positive transformation in the coming years.","PeriodicalId":73282,"journal":{"name":"IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86017521","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

Application of the DMD Approach to High-Reynolds-Number Flow over an Idealized Ground Vehicle DMD方法在理想地面车辆高雷诺数流中的应用

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-06-01 DOI: 10.3390/vehicles5020036

Adit Misar, N. Tison, V. Korivi, M. Uddin

{"title":"Application of the DMD Approach to High-Reynolds-Number Flow over an Idealized Ground Vehicle","authors":"Adit Misar, N. Tison, V. Korivi, M. Uddin","doi":"10.3390/vehicles5020036","DOIUrl":"https://doi.org/10.3390/vehicles5020036","url":null,"abstract":"This paper attempts to develop a Dynamic Mode Decomposition (DMD)-based Reduced Order Model (ROMs) that can quickly but accurately predict the forces and moments experienced by a road vehicle such that they be used by an on-board controller to determine the vehicle’s trajectory. DMD can linearize a large dataset of high-dimensional measurements by decomposing them into low-dimensional coherent structures and associated time dynamics. This ROM can then also be applied to predict the future state of the fluid flow. Existing literature on DMD is limited to low Reynolds number applications. This paper presents DMD analyses of the flow around an idealized road vehicle, called the Ahmed body, at a Reynolds number of 2.7×106. The high-dimensional dataset used in this paper was collected from a computational fluid dynamics (CFD) simulation performed using the Menter’s Shear Stress Transport (SST) turbulence model within the context of Improved Delayed Detached Eddy Simulations (IDDES). The DMD algorithm, as available in the literature, was found to suffer nonphysical dampening of the medium-to-high frequency modes. Enhancements to the existing algorithm were explored, and a modified DMD approach is presented in this paper, which includes: (a) a requirement of higher sampling rate to obtain a higher resolution of data, and (b) a custom filtration process to remove spurious modes. The modified DMD algorithm thus developed was applied to the high-Reynolds-number, separation-dominated flow past the idealized ground vehicle. The effectiveness of the modified algorithm was tested by comparing future predictions of force and moment coefficients as predicted by the DMD-based ROM to the reference CFD simulation data, and they were found to offer significant improvement.","PeriodicalId":73282,"journal":{"name":"IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90381184","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

Voltage Signals Measured Directly at the Battery and via On-Board Diagnostics: A Comparison 电压信号直接测量在电池和通过车载诊断:比较

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-05-30 DOI: 10.3390/vehicles5020035

Gereon Kortenbruck, Lukas Jakubczyk, Daniel Frank Nowak

{"title":"Voltage Signals Measured Directly at the Battery and via On-Board Diagnostics: A Comparison","authors":"Gereon Kortenbruck, Lukas Jakubczyk, Daniel Frank Nowak","doi":"10.3390/vehicles5020035","DOIUrl":"https://doi.org/10.3390/vehicles5020035","url":null,"abstract":"Nowadays, cars are an essential part of daily life, and failures, especially of the engine, need to be avoided. Here, we used the determination of the battery voltage as a reference measurement to determine possible malfunctions. Thereby, we compared the use of a digital oscilloscope with the direct measurement of the battery voltage via the electronic control unit. The two devices were evaluated based on criteria such as price, sampling rate, parallel measurements, simplicity, and technical understanding required. Results showed that the oscilloscope (Picoscope 3204D MSO) is more suitable for complex measurements due to its higher sampling rate, accuracy, and versatility. The on-board diagnostics (VCDS HEX-V2) is more accessible to non-professionals, but it is limited in its capabilities. We found that the use of an oscilloscope, specifically the Picoscope, is preferable to measure battery voltage during the engine start-up process, as it provides more accurate and reliable results. However, further investigation is required to analyse numerous influences on the cranking process and the final decision for the appropriate measurement device is case specific.","PeriodicalId":73282,"journal":{"name":"IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135693018","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

Pragmatic and Effective Enhancements for Stanley Path-Tracking Controller by Considering System Delay 考虑系统延迟的Stanley路径跟踪控制器实用有效的改进

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-05-23 DOI: 10.3390/vehicles5020034

Alexander Seiffer, Michael Frey, F. Gauterin

{"title":"Pragmatic and Effective Enhancements for Stanley Path-Tracking Controller by Considering System Delay","authors":"Alexander Seiffer, Michael Frey, F. Gauterin","doi":"10.3390/vehicles5020034","DOIUrl":"https://doi.org/10.3390/vehicles5020034","url":null,"abstract":"The Stanley controller is a proven approach for path tracking control in automated vehicles. If time delays occur, for example, in signal processing and steering angle control, precision and stability decrease. In this article, enhancements for the Stanley controller are proposed to achieve stable behavior with improved tracking accuracy. The approach uses the curvature of the path as feedforward, whereby the reference point for the feedforward input differs from that of the controller setpoints. By choosing a point further along the path, the negative effects of system delay are reduced. First, the parameters of the Stanley controller are calibrated using a straight line and circle maneuver. Then, the newly introduced feedforward parameter is optimized on a dynamic circuit. The approach was evaluated in simulation and validated on a demonstrator vehicle. The validation tests with the demonstrator vehicle on the dynamic circuit revealed a reduction of the root-mean-square cross-track error from 0.11 m to 0.03 m compared to the Stanley controller. We proved that the proposed approach optimizes the Stanley controller in terms of compensating for the negative effects of system delay. This allows it to be used in a wider range of applications that would otherwise require a more complex control approach.","PeriodicalId":73282,"journal":{"name":"IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88480836","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

Feasibility Study of Wheel Torque Prediction with a Recurrent Neural Network Using Vehicle Data 基于车辆数据的递归神经网络车轮转矩预测的可行性研究

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-05-18 DOI: 10.3390/vehicles5020033

Miriam Weinkath, Simon Nett, Chong Dae Kim

引用次数: 0

Machine-Learning-Based Digital Twins for Transient Vehicle Cycles and Their Potential for Predicting Fuel Consumption 基于机器学习的车辆瞬态循环数字孪生及其预测油耗的潜力

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-05-12 DOI: 10.3390/vehicles5020032

E. Tomanik, Antonio J. Jiménez-Reyes, Victor Tomanik, B. Tormos

引用次数: 2