Olivier Orfila

Olivier Orfila
Université Gustave Eiffel · Laboratoire sur les Interactions Véhicules-Infrastructure-Conducteurs (LIVIC)

PhD in automation

About

51
Publications
14,265
Reads
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377
Citations
Citations since 2016
26 Research Items
328 Citations
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2016201720182019202020212022020406080
2016201720182019202020212022020406080
Additional affiliations
January 2015 - present
Université Gustave Eiffel
Position
  • Head of Department
October 2010 - December 2014
Université Gustave Eiffel
Position
  • Senior Researcher

Publications

Publications (51)
Article
Full-text available
For a decade, researchers have focused on the development and deployment of road automated mobility. In the development of autonomous driving embedded systems, several stages are required. The first one deals with the perception layers. The second one is dedicated to the risk assessment, the decision and strategy layers and the optimal trajectory p...
Article
Full-text available
With the advancement of technology and the arrival of miniaturized environmental sensors that offer greater performance, the idea of building mobile network sensing for air quality has quickly emerged to increase our knowledge of air pollution in urban environments. However, with these new techniques, the difficulty of building mathematical models...
Article
Ridesplitting, a form of ridesourcing services that matches riders with similar routes to the same driver, is a high occupancy travel mode that can bring considerable benefits. However, the current ratio of ridesplitting in the ridesourcing services is relatively low and its influencing factors remain unrevealed. Therefore, this paper uses a machin...
Article
Full-text available
With the growing development of Cooperative, Connected, and Automated Mobility (CCAM), questions arise about the real impact of this innovative mobility on our daily life. CCAM originally promised to improve road safety. It is now a holistic solution for future mobility: the CCAM is there to optimize traffic, which can translate into strategies for...
Research
Full-text available
Dear Colleagues, This Special Issue will provide an overview of recent research related to the new generation of sensor technologies, sensor processing and fusion, and fusion architecture for efficient, reliable, and robust connected, smart, and future mobility system development. Indeed, prior to ensuring a high level of accuracy and safety in the...
Article
Full-text available
The increasing availability of large-scale global positioning system data stemming from in-vehicle-embedded terminal devices enables the design of methods deriving road network cartographic information from drivers’ recorded traces. Some machine learning approaches have been proposed in the past to train automatic road network map inference, and re...
Article
Full-text available
Transportation is a key driver of development, enabling people to have access to jobs, education, health, and goods. Still, the unintended consequences of transportation constitute a big risk, threatening the global sustainable development. About 64% of global oil consumption and 23% of the worldwide CO2 emissions are attributed to transportation [...
Article
With the increasingly closer deployment of connected and automated vehicles (CAV), it is essential to study the different algorithmic stages involved in the design of active embedded systems. These stages are related to perception, decision, and action. As for the decision-making part which will allow generating maneuvers and optimal and safe traje...
Article
Full-text available
The urban transport sector has become one of the major contributors to global CO2 emissions. This paper investigates the driving forces of changes in CO2 emissions from the passenger transport sectors in different cities, which is helpful for formulating effective carbon-reduction policies and strategies. The logarithmic mean Divisia index (LMDI) m...
Article
Highly automated driving (HAD) is a part of the future ways for the “intelligent” road mobility. In this framework, some studies have shown that drivers’ situational awareness decreases when using HAD. In this HAD context, drivers can engage non driving tasks as reading or sleeping. These non-driving tasks lead to increased reaction time in case of...
Research Proposal
Full-text available
Dear Colleagues, This Special Issue will provide an overview of the recent research related to sensor and data fusion, information processing and merging, and fusion architecture for the cooperative perception and risk assessment needed for autonomous mobility means. Indeed, prior to ensuring a high level of safety in the deployment of autonomous d...
Conference Paper
Detailed and accurate vehicle-oriented sensor data is considered fundamental for efficient vehicle-to-everything V2X communication applications, especially in the upcoming highly heterogeneous, brisk and agile 5G networking era. Information retrieval, transfer and manipulation in real-time offers a small margin for erratic behavior, regardless of i...
Conference Paper
Full-text available
Detailed and accurate vehicle-oriented sensor data is considered fundamental for efficient vehicle-to-everything (V2X) communication applications, especially in the upcoming highly heterogeneous, brisk and agile 5G networking era. Information retrieval, transfer and manipulation in real-time offers a small margin for erratic behavior, regardless of...
Article
Full-text available
This paper proposes and evaluates an algorithm called Multi-Objective planning based on Simulated Annealing (MOSA) that plans a trajectory (speed profile) for a passenger car on a free, single lane road. This algorithm is relying on a decomposition of the decision space into "chunks" that are optimized separately. Two objectives have been taken int...
Article
Full-text available
Speed variations are considered as an alternative for reducing fuel consumption during the use phase of passenger cars. It explores vehicle engine operating zones with lower fuel consumption, thus making possible a reduction in fuel consumption when compared to constant speed operation. In this paper, we present an evaluation of two conditions of s...
Article
Over the last decades, the development of Advanced Driver Assistance Systems (ADAS) has become a critical endeavor to attain different objectives: safety enhancement, mobility improvement, energy optimization and comfort. In order to tackle the first three objectives, a considerable amount of research focusing on autonomous driving have been carrie...
Conference Paper
Full-text available
Map-matching GPS traces on a reference road network often increases point positional accu- racy, especially in urban environment where satellite signal is frequently obstructed by buildings. However, with receivers improvement, road data errors may no longer be ipso facto considered as negligible in front of GPS trace errors. This raises the questi...
Article
This article presents a fuel consumption model, SEFUM (Semi Empirical Fuel Use Modeling), and its comparison with three models from the literature on a 600 km experimental database. This model is easy to calibrate with only a few required parameters that are provided by car manufacturers. The test database has been built from 21 drivers who drove i...
Article
In the framework of future innovation and for the sake of road safety, there is a great hope in fully supporting, or even replacing, the human driver by reliable technology. But, due to the novelty of this context, an important care will have to be devoted to investigate drivers' expectation, needs, behavior and functional abilities to reach this g...
Article
Growing research progress in Internet of Things (IoT), automated/connected cars, Artificial Intelligence and person's data acquisition (Quantified Self) will help to reduce behavioral uncertainties in transport and unequivocally influence future transport landscapes. This vision paper argues that by capitalizing advances in data collection and meth...
Conference Paper
Full-text available
Eco-driving is about energy efficient use of vehicles. There are many approaches to improve eco-driving. Eco-driving driving style is hard to learn even with the help of driving assistance systems. This paper presents an immersive driving simulation training tool to support eco-driving training. We address the following questions: (1) How gamificat...
Conference Paper
Full-text available
Vehicle and Road Automation (VRA) is a support action funded by the European Union and coordinated by ERTICO that addresses the identified deployment needs from different perspectives: the deployment scenarios, the legal and regulatory needs and finally the standardization and certification requirements [1]. In particular, the importance of the phy...
Conference Paper
Full-text available
IEEE Intelligent Vehicles Symposium 2015 (IV 2015), Seoul, COREE, REPUBLIQUE DE, 28-/06/2015 - 01/07/2015
Article
Full-text available
Recent improvements of communication technologies leads to several innovations in road vehicles energy consumption. As an example, several ecodriving applications already appeared on all smartphone application markets. Using embedded smartphone signals, such applications provide real time feedback to drivers according to their performances. However...
Article
Full-text available
Driving Assistances aim at enhancing the driver safety and the comfort. Nowadays, the consumption is also a major criterion which must be integrated in the driving assistances. Then, we propose to redefine the behavior of an ACC with energy efficiency consideration to perform a Smart and Green ACC. We apply our development to the specific use case...
Conference Paper
Full-text available
Nowadays, the improvement of communication technologies is widely applied to reduce energy use in cars. Several ecodriving application already appeared on the market. They consist in providing a feedback to the drivers describing their ecodriving behavior and they rely on embedded sensors signals (GPS speed and acceleration). However most of these...
Conference Paper
Full-text available
Road transport largely dominates the transportation demand and energy consumption. Passenger light-duty vehicles (passenger cars and light trucks) are responsible for almost half of the energy consumption of road transport. This energy is mainly supplied by fuels produced using oil resources, increasingly difficult and expensive to exploit. The use...
Article
Full-text available
This paper presents a new method to model the vehicle fuel consumption in the design of an eco-driving assistance system developed by IFSTTAR within the European Commission FP7 project eco-Driver. The ambition of the driver assistance system is to combine safety requirements and fuel consumption reduction by optimizing the vehicle speed and the gea...
Conference Paper
This paper presents an optimization of a conventional Adaptive Cruise Control system (ACC) for the specific use of electric vehicles with regenerative capacity, namely the Smart and Green ACC (SAGA). Longitudinal control strategies, that are developed for the driving assistances, mainly aim at optimizing the safety and the comfort of the vehicle oc...
Conference Paper
Full-text available
Simulation has been widely used to estimate the benefits of ADAS with embedded sensors or more recently Cooperative Systems based on Inter-Vehicular Communications. This paper presents the proposal of a new architecture built with the both SiVIC and RTMaps platforms in order to prototype, to test and to validate eco-driving applications. In this ar...
Conference Paper
Full-text available
This paper presents a new method to model and optimize the vehicle fuel consumption and its speed in the design of an eco-driving assistance system (EDAS) developed within the EU ecoDriver project. The main objective of this EDAS is to combine a precise fuel consumption model with a robust optimization module. An optimal speed profile is obtained t...
Conference Paper
This paper concerns the development of the Smart and Green Adaptive Cruise Control aiming at controlling the ego vehicle speed taking into account the road data in order to optimize the energy consumption while improving safety (no collision, under the legal speed, up to the safe headway). A graph search algorithm of Dijkstra is used to build up a...
Article
Full-text available
Ecodriving is known as a way to quickly and efficiently reduce fuel consumption for the concerned ecodriven vehicle. However, the impact of ecodriving on a whole road network at a large scale is unknown. In order to perform studies in a micro traffic simulation software, a fuel consumption model coupled to a gear behavior model are required. This s...
Conference Paper
The work developed in this paper is realized within the ecoDriver EU FP7 project that is shortly presented in the first part of the paper. Among the several main objectives underlined by this project, one consists in developing a vehicle and energy consumption model to be validated and then used to help the driver to better drive in terms of consum...
Article
Full-text available
Since many years, as a consequence of fossil fuels rarefaction and climate changes, ecology has become a major challenge of our society. In this field, many improvements could be realized on the transportation side and more precisely on passenger cars which are an important source of pollution. A quick and efficient solution to reduce fuel consumpt...
Article
Les pertes de contrôle d'un véhicule résultent souvent d'une conjonction de causes. Si le facteur humain est fréquemment mis en avant (vitesse excessive, alcool), le facteur infrastructure est aussi présent dans près de la moitié des cas d'accidents mortels. Cet article présente d'abord les caractéristiques quasi intrinsèques à la route telles que...
Article
Full-text available
Relevant road risk evaluation is required to build safe road and to adopt adequate maintenance strategy. One of the most crucial point for this evaluation is to determine the limits of control for given vehicles on a studied road. These limits have to be known for ensuring safe range of using conditions and acceptable safety margins. They are usual...
Article
Usually, road safety is assessed by following adequate highway geometric design standards and can be controlled later by measurement and expertise. Nevertheless, interactions between vehicle dynamics and road characteristics cannot be simultaneously analyzed for these two means of safety evaluation. In this study, an analytical method based on road...
Article
Full-text available
Road infrastructure plays a major role in the occurrence of control loss of passengers cars in curves. To evaluate the risk level associated to an infrastructure, road managers currently use methods founded on statistical or empirical studies, knowing that their reliability can vary over time. The aim of this work is to complete these methods with...
Article
Full-text available
Knowledge of the forces exerted by vehicle wheels on a pavement facilitates the evaluation of control loss risk. More specifically, for experimental studies, such forces when measured can be correlated with tire skidding in order to consolidate the dynamic behavior analysis of a vehicle. Given the costly dynamometer wheels conventionally introduced...
Article
Full-text available
La connaissance des efforts exercés par les roues d'un véhicule sur une chaussée facilite l'évaluation des risques de perte de contrôle. En particulier, pour des études expérimentales, de tels efforts mesurés peuvent être rapportés aux dérives des pneumatiques pour consolider l'analyse du comportement dynamique d'un véhicule. Face aux coûteuses rou...
Article
Roads geometrical design rest partly on relations between the allowed speed of use, the curvature of the plotting and the banking. These relations have sometimes old justifications as in France where the documents used date from 1994. Work presented here comes in the line off a checking approach of these calculation means. In this direction, a prel...
Article
Vehicle tire aquaplaning is a dangerous phenomenon, characterized in its hydrodynamic form by the tire to ground separation and the cancellation of steering or braking control possibilities. Its occurence is generally suspected only for high speeds in presence of water but the phenomenon can appear for rather low speeds. This work aim is to charact...
Article
Full-text available
RESUME : L'étude présentée a pour objectif la détermination de l'influence de l'anisotropie de flexion sur l'endommagement d'impact basse vitesse de composites stratifiés carbone/époxy. Quatre stratifications de 24 couches sont étudiées. Elles possèdent des propriétés diverses d'isotropie ou d'anisotropie en membrane et en flexion. L'endommagement...

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Projects (2)
Project
How to train 5 time 30 minutes per week for improving performance on middle and long distance running