Search results for "Automotive"
showing 10 items of 619 documents
Efficiency improvement of a ground coupled heat pump system from energy management
2011
The installed capacity of an air conditioning system is usually higher than the average cooling or heating demand along the year. So, most of the time, the system is working under its actual capacity. In this contribution, we study the way to improve the efficiency of a ground coupled heat pump air conditioning system by adapting its produced thermal energy to the actual thermal demand. For this purpose, an air conditioning system composed by a ground coupled heat pump and a central fan coil linked to an office located in a cooling dominated area was simulated, and a new management strategy aiming to diminish electrical consumption was developed under the basic constraint that comfort requi…
Nazwa własna a nazwa pospolita – dylematy z pogranicza chrematonimii
2019
<p>Przedmiotem artykułu są nazwy produktów cukierniczych, które jako chrematonimy sytuują się na pograniczu nazw własnych. Materiał wyekscerpowany został z różnych blogów kulinarnych, dostępnych w latach 2017–2018. Cel rozważań to odpowiedź na pytania z zakresu onomastyki, gdzie jest granica między nazwą własną a pospolitą i czy jest możliwe precyzyjne jej wyznaczenie. Analiza semantyczna onimów, określenie ich funkcji (marketingowo-perswazyjnej) i testy gramatyczne (test orzecznikowy i zaimkowy), którym poddano poszczególne jednostki, prowadzą do podziału nazw produktów na trzy grupy: nazwy pospolite, nazwy pospolite z członem dyferencjalnym i nazwy własne. Istnieją jednak elementy p…
Interactive simulation of one-dimensional flexible parts
2006
Computer simulations play an ever growing role for the development of automotive products. Assembly simulation, as well as many other processes, are used systematically even before the first physical prototype of a vehicle is built in order to check whether particular components can be assembled easily or whether another part is in the way. Usually, this kind of simulation is limited to rigid bodies. However, a vehicle contains a multitude of flexible parts of various types: cables, hoses, carpets, seat surfaces, insulations, weatherstrips... Since most of the problems using these simulations concern one-dimensional components and since an intuitive tool for cable routing is still needed, w…
High-Speed Machines: Typologies, Standards, and Operation under PWM Supply
2018
This paper presents an overview of the most recent state of the art in the field of high-speed electric machines fed through high-frequency converters. This type of systems is rapidly wide spreading in aeronautical and automotive applications, as well as microturbines. Each typology has its own advantages and downsides, which are analytically presented in this paper. Some types of high-speed electric machines require high-frequency voltage supply, highly stressing the dielectric materials of the winding insulation system. For this reason, in high-speed electric drives, premature failure may occur and a reduction of the total system reliability has been observed in the past years. Such issue…
Tunnel fire active protection: improving ventilation system
2019
Abstract The main aim of this work is to evaluate how the use of an active protection method, consisting in an improved forced longitudinal ventilation system, can determine a positive impact on heat extraction and people evacuation time in a tunnel fire scenario, by considering a case study which simulations are based on a real gallery.
Barcelona and SEAT, a History of Lost Opportunity: Corporate Marketing, Nation Branding, and Consumer Nationalism in the Automotive Industry
2015
Why is there no SEAT Barcelona? Barcelona is a well-named place brand, but SEAT consciously has disassociated itself from its geographic origins. This seems rather strange decision if one takes into account the increasing importance of the place-of-origin effect in automotive industry. This article describes how SEAT has constructed its Spanish identity and hidden its Catalan-Barcelona origins, and discusses SEAT’s own growing “denationalization” because of the acquisition by Volkswagen Group by using banal nationalism to gain the loyalty of the country’s nationalist consumers and to fashion a corporate image in line with Spain’sMarca España, or national brand. Through this decision, SEAT h…
Experimental study of the combined RES-based generators and electric storage systems for public buildings
2019
Abstract In the present paper, a new approach to the management of energy resources in the Research and Technology Centre of Energy (CRTEn -Tunisia) is proposed and evaluated by the monitoring of a PV installation realized for the cooperation project DE.DU.ENER.T, using renewable energy and economic criteria. The aim of this project is to improve energy efficiency order to minimize the electricity cost consumed at the CRTEn laboratory. According to the bills of electricity received, we noticed that there is a high consumption of electrical current. So, we targeted to install a photovoltaic field of 12KWc to reduce these bills by using the sustainable, green and clean sources. A theoretical …
A Feasibility Analysis of an Electric KERS for Internal Combustion Engine Vehicles
2019
In this work, the authors evaluate the energetic and economic advantages connected to the implementation of an electric Kinetic Energy Recovery System (e-KERS) on an internal combustion engine vehicle (ICEV). The e-KERS proposed is based on the use of a supercapacitor (SC) as energy storage element, a brushless motor generator unit (MGU) for the conversion of the vehicle kinetic energy into electric energy (and vice versa), and a power converter properly designed to manage the power transfer between SC and MGU. The low complexity of the system proposed, the moderate volume and weight of the components selected for its assembly, together with their immediate availability on the market, make …
Dynamic Modeling and Driving Cycle Prediction for a Racing Series Hybrid Car
2014
International audience; This paper presents Noao, a plug-in series hybrid racing car equipped with an engine/generator set as range extender. To determine the velocity profile, i.e., performance of the car and its power profile, a dynamic model for this car is developed using pedal position as input. This value is easy to measure, representative for race cycles, and presents a novelty. The model is validated with the results from experiments. An analysis based on the map of Magny-Cours racing circuit and drivers pedal action on certain zones of the circuit is formulated and is used as a prediction tool to determine drivers inputs on other racing circuits and generate driving schedules. The …
Sheet Metal Hydroforming Technology - State-of-the-Art
2016
The present paper describes the current status of hydroforming technology in today’s global market that focuses on energy use in respect to increasing requirements especially from the automotive industry with its renaissance after the economic crisis. A vast hydroforming classification and the restrictions and drawbacks for a wider market share are also presented.