Marco Pierini

Marco Pierini
University of Florence | UNIFI · Dipartimento di Ingegneria Industriale

PhD Machine Design, MSc Mech. Eng.

About

205
Publications
70,986
Reads
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2,397
Citations
Citations since 2017
84 Research Items
1858 Citations
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Introduction
Marco Pierini currently works at the Dipartimento di Ingegneria Industriale , University of Florence.
Additional affiliations
January 2006 - August 2015
University of Florence
Position
  • Associate Professor, Head of CISAP
November 2002 - November 2018
University of Florence
Position
  • Head of Department

Publications

Publications (205)
Article
Objective: Vehicles are increasingly being equipped with Autonomous Emergency Braking (AEB) and literature highlights the utility to fit a similar active safety system in Powered Two-Wheelers (PTWs). This research attempts to analyze the efficacy of PTW Autonomous Emergency Braking (MAEB) when functioning solely, and in the case where both the PTW...
Article
Full-text available
The study presented is part of the Rural Development Programme of the Tuscany Region and the European Union: the objectives are to limit the number of manual operations, to enhance technological transfer operations, to share best practices and to reduce the carbon footprint of the Scindapsus cuttings production chain. In this context, the work pres...
Article
Full-text available
Although diverse tyre model formulations exist in the literature, they are suited for characterisation using a dedicated test bench, preventing parameters' estimation in driving conditions. This study defined a novel motorcycle tyre model, characterisable through driving manoeuvres using simple instrumentation consisting in an inertial measurement...
Conference Paper
Autonomous Emergency Braking (AEB) is a promising technology in the future of motorcycle safety, since it could be effective in reducing the consequences of crashes. To evaluate whether a personal experience of the intervention may influence the acceptance of such a system, an analysis of the results of a field study conducted in realistic pre-cras...
Article
Objective Recent field-tests on Motorcycle Autonomous Emergency Braking system (MAEB) showed that higher levels of deceleration to improve its effectiveness were feasible. However, the potential of MAEB in mitigating rider injuries is not well understood, particularly in scenarios where the efficacy of standard MAEB is limited because the rider is...
Article
The capability to assess and monitor the state of health (SOH) of lithium-based cells is a highly demanded feature for advanced battery management systems. Due to the existing relation between SOH and internal impedance, electrochemical impedance spectroscopy (EIS) methods are adopted for SOH diagnosis. Nevertheless, accurate EIS tests demand expen...
Article
Objective Motorcycle helmets are the most common and effective protective device to reduce head injuries and mortality in crashes among powered two-wheeler riders. Even if they are globally recognized as effective, there are still concerns regarding their correct use, which is necessary to achieve maximum head protection. The goal of this systemati...
Article
Objective Human error by either rider or other vehicle driver is the primary contributing factor in crashes involving powered-two-wheelers. A human-factor-based crash analysis methodology is key to enhancing the road safety effectiveness of rider training interventions. Our aim is to define a methodology that uses in-depth data to identify the skil...
Preprint
This paper defines a methodology with in-depth data to identify the skills needed by riders in the highest risk crash configurations to reduce casualty rates. We present a case study using in-depth data of 803 powered-two-wheeler crashes. Seven high-risk crash configuration based on the pre-crash trajectories of the road-users involved were conside...
Article
Full-text available
Motorcycle Autonomous Emergency Braking system (MAEB), is a technology that introduces also on Powered-Two-Wheelers (PTWs) the autonomous braking, which is able to apply autonomously a braking force to reduce impact speed in emergency situations. This system was shown to be possibly effective in reducing numbers of deaths and serious injuries resul...
Article
Full-text available
This paper proposes a hybrid storage for urban transport systems in order to reduce recharge time and increase its life and reliability. Proposed system is applied to a pre-existing electric vehicle, introducing through proposed revamping procedure a methodology for a fast integration of proposed systems on different vehicles. Finally, the system i...
Article
Full-text available
In this paper, the design procedure of an electric vehicle (EV) wireless charger is presented. Unlike most of the systems available in the literature, the proposed charging system is regulated from the vehicle side. The on-board electrical circuit automatically adapts the resonant compensation to guarantee compatibility with the primary inverter ch...
Article
Diffusion of electric and hybrid vehicles is accelerating the development of innovative braking technologies. Calibration of accurate models of a hydraulic brake plant involves availability of large amount of data whose acquisition is expensive and time consuming. Also, for some applications, such as vehicle simulators and hardware in the loop test...
Conference Paper
Research question / Starting point for investigation: One of the emerging technologies in road vehicles safety is Autonomous Emergency Braking (AEB), which applies autonomously a braking force to reduce impact speed in pre-crash conditions. Some studies showed that motorcycle AEB (MAEB), could be very effective and reliable in reducing serious cons...
Conference Paper
Research question / Starting point for investigation: The application of Autonomous Emergency Braking on Motorcycles (MAEB) relies on the solution of a number of open research questions. The collision represents a dangerous and safety critical event to be avoided with high priority. However, focusing on the triggering methods, the recommendation fr...
Article
Full-text available
Powered-two-wheelers (PTWs) are increasingly popular because of their lower cost compared to cars, and therefore the riders’ exposure risk is increasing. Due to their complex dynamics characterized by high non-linearity and inherent instability, PTWs are more difficult to control compared to four-wheeled vehicles. Wobble is a high-frequency instabi...
Conference Paper
A rapidly shifting market and increasingly stringent environmental regulations require the automotive OEMs to produce more efficient and low-emission electric vehicles. Regenerative braking has proven to be a major contributor to both objectives, enabling the charging of the batteries during braking on one side, and a reduction of the load and wear...
Chapter
As a part of a National research program (Ricerca di Sistema 2015 and 2017), ENEA has proposed an innovative hybrid storage system that allows a fast recharge of electric public transportation vehicles. In order to demonstrate the feasibility of this idea, researchers of University of Florence have implemented the proposed system on a existing elec...
Article
Full-text available
The most common evasive maneuver among motorcycle riders and one of the most complicated to perform in emergency situations is braking. Because of the inherent instability of motorcycles, motorcycle crashes are frequently caused by loss of control performing braking as an evasive maneuver. Understanding the motion conditions that lead riders to sta...
Article
Application of regenerative braking on electric vehicles have a large impact on several aspects of design, implemented functionalities and overall performances of road vehicles. In particular, multi-quadrant capabilities and improved control performances of modern electric drives can be fully exploited to improve vehicle efficiency, stability and o...
Article
Propagating uncertainties through mechanical systems has been widely studied for the last thirty years. In particular metamodels based on polynomial chaos expansion (PCE) have been successfully developed in the context of both intrusive and non-intrusive methods. However, modelling random dynamical systems is much more challenging and requires incr...
Conference Paper
Full-text available
Besides the conventional and established applications of sensitivity analysis in the field of optimization, sensitivity analysis-based approaches can also be used for systematic analysis of optimization problems and algorithm performance....
Conference Paper
Full-text available
Recenti studi sulla funzione di frenata autonoma (autonomous emergency braking, AEB) per motocicli suggeriscono che il valore massimo di decelerazione automatica, inizialmente fissato a 3 m/s 2 , sia eccessivamente cautelativo, dato che in realtà anche motociclisti di media esperienza sono in grado di gestire decelerazioni di entità più elevata. Ba...
Article
The study was dealing with to evaluate whether the motorcycle impact speed reduction produced by an ideal Motorcycle Autonomous Emergency Braking system (M-AEB) is sufficient to significantly reduce the head injury severity of a helmeted rider. A set of thirteen motorcycle crashes were analysed. Multibody simulations of the victim’s kinematics were...
Conference Paper
Regenerative braking influences several aspects of design and performances of electric vehicles. Improved performances of modern electric drives can be exploited to optimize vehicle efficiency, stability and environmental impact. Braking plant is devoted not only to stop the vehicle but also to the actuate many on board safety related systems. As a...
Chapter
Development of electric vehicles is not only an opportunity in terms of environmental sustainability but it also offers interesting possibilities in terms of control performances that can be achieved by on board systems devoted to increase vehicle safety and stability by modulating longitudinal efforts applied to tires. It’s not only a matter of pe...
Article
Objective: Motorcycles and mopeds, often referred to as powered 2-wheelers (PTWs), play an important role in personal mobility worldwide. Despite their advantages, including low cost, space occupancy, and fuel efficiency, the risk of sustaining serious or fatal injuries is higher than that for occupants of passenger cars. The development of safety...
Article
Full-text available
Collisions with other vehicles represent the biggest threat to riders of powered-two-wheeler (PTW), and while emergency braking is the evasive manoeuvre most frequently required in PTW riding, many riders fail to perform it adequately due to constraints on response time precipitated by failures of perception, cognition and control actions. Effectiv...
Chapter
Modern electric vehicles are complex mechatronics systems whose behaviour is highly influenced by the concurrent action of mechanical and electrical systems interfaced with complex control logics aiming to improve several aspect concerning energy management, vehicle stability, comfort and guidance. As a partner of the European Project Obelics (Opti...
Chapter
Cost and reliability of energy storage systems are key factors for the electrification of road vehicles such as buses. In this work, authors propose a hybrid storage system in which a relatively small electrochemical battery is coupled with an array of super-capacitors. Super-capacitors are sized in order to store the energy needed to perform the t...
Article
Full-text available
Sustainability is a critical issue for the automotive industry, making that car manufacturers have to address also environmental issues additionally to the traditional ones. Within this context, many research and industry activities have been concentrated in the field of lightweighting through the development of innovative materials and manufacturi...
Article
Full-text available
The activity here presented describes the retrofit performed on a small-size electric urban bus, which has been transformed in a laboratory vehicle for flash charge functionality using energy transfer between supercapacitors. The existing motor and driveline has been maintained, while the energy storage, originally based on lead batteries, has been...
Article
Full-text available
The number of vehicles on the roads is constantly increasing. Considering the circulating park in Italy, recent data show that Powered Two-Wheelers (PTWs) have increased by about 20% just in ten years (2006-2016). PTW crashes are not decreasing at the desired pace and thus rider safety is still a concern. Previous studies showed that lower limbs ar...
Article
Full-text available
PTWs usually are cheaper than cars, they have lower energy consumption and fewer polluting emissions than larger vehicles. So, over the last decade there has been a significant increase of PTW circulating park. When riders are involved in an accident, legs are the most frequently injured part of the body. The aim of this paper is to assess the perf...
Conference Paper
Research question / Starting point for investigation: The improvement of motorcycle and moped riders’ safety is in the European agenda. Regrettably, the current scattered approach adopted by the industry and the academia is inefficient. The identification of a shared motorcycle safety roadmap may optimise the efforts of the stakeholders. To contrib...
Article
Objective: The ISO13232 standard provides guidelines and methodologies for research on the effectiveness of protective devices fitted to motorcycles. The accident database used to develop the standard was composed of 2 data sets from Hannover and Los Angeles, dating from 1996. This study aims to apply the methodology outlined in the standard to a m...
Conference Paper
Full-text available
Tilting vehicles, such as electric bicycles, motorcycles, and scooters, are increasing in popularity as a means of personal transport. From a safety viewpoint, the development of Advanced Rider Assistance Systems (ARAS) for two-wheeled vehicles is lagging behind the Advanced Driver Assistance Systems (ADAS) of other road vehicles (e.g. autonomous e...
Conference Paper
Leading causes of PTW (Powered Two-Wheeler) crashes and near misses in urban areas are on the part of a failure or delayed prediction of the changing trajectories of other vehicles. Regrettably, misperception from both car drivers and motorcycle riders results in fatal or serious consequences for riders. Intelligent vehicles could provide early war...
Conference Paper
Artificial prediction of future location of other cars in the context of advanced safety systems is a must. The remote estimation of car pose and particularly its heading angle is key to predict its future location. Stereo vision systems allow to get the 3D information of a scene. Ground truth in this specific context is associated with referential...
Article
Full-text available
Purpose Social life cycle assessment (S-LCA) applications have been growing during the last years. Most of the scientific articles published so far have addressed the applicability of S-LCA, focusing on selecting suitable indicators, and only recently, the developments in the area of impact pathway are increasing. However, a critical analysis of ho...
Article
Full-text available
Advanced driver assistance systems, ADAS, have shown the possibility to anticipate crash accidents and effectively assist road users in critical traffic situations. This is not the case for motorcyclists, in fact ADAS for motorcycles are still barely developed. Our aim was to study a camera-based sensor for the application of preventive safety in t...
Article
Full-text available
The objective of this paper is to discuss the main barriers for modelling and integrating the environmental performances in the automotive concept design. Incorporating environmental assessment in the early design phase of a vehicle component is known as an important challenge that car makers need to face in order to develop more sustainable design...
Chapter
In the context of industrial engineering, it is important to integrate efficient computational optimization methods in the product development process. Some of the most challenging simulation-based engineering design optimization problems are characterized by: a large number of design variables, the absence of analytical gradients, highly non-linea...
Article
The use of photovoltaic panels in Europe led to the installation of about 100GWp in the last decade, an amount which is still growing. The productive life of panels is expected to be between 10 to 30 years, so that in the future a strong demand for systems able to perform their End–of–Life treatment is undoubted. As a consequence of the Directive 2...
Article
Full-text available
Powered Two Wheelers (PTWs) offer a viable solution to reduce traffic congestion and promote personal mobility. However, vehicle characteristics and conspicuity issues lead to an overrepresentation of PTWs in accident statistics. This work presents an innovative approach for concept design of new passive safety devices and their development. The la...
Article
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In this paper we present the Interuniversity Research Center STEERING, formed in June 2017. The Research Center has been founded by three Italian Universities through five Departments. It represents the connection between Statistics and Engineering. The five Departments promoting it are the following: Department of Innovation and Information Engine...
Article
Full-text available
The diffusion of small size electric vehicles mainly designed for the urban context can significantly reduce the impact of personal mobility not only due to reduced energy consumption but also optimizing the use of parking and driving space in comparison with conventional vehicles. The solutions proposed on the market and at research level include...
Article
Full-text available
Transportation represents one of the major contributors to several environmental burdens such as Green-House-Gas (GHG) emissions and resource depletion. Considering the European Union, light duty vehicles are responsible for roughly 10% of total energy use and air emissions. As a consequence, the need for higher fuel/energy efficiency in both conve...
Article
In the context of industrial engineering it is important to integrate efficient computational optimization methods in the product development process. Some of the most challenging simulation based engineering design optimization problems are characterized by: a large number of design variables, the absence of analytical gradient information, highly...
Conference Paper
Collisions with other vehicles represent the biggest threat to powered-two-wheelers (PTW) riders, and while emergency braking is the evasive maneuver most frequently required in PTW riding, many riders fail to perform it adequately due to constraints on response time precipitated by failures of perception, cognition and control actions. Effective r...