Relevant bibliographies by topics / Homologation tests

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Homologation tests'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Homologation tests"

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RADZIEWICZ, Katarzyna, Krzysztof GARBALA, and Michał CEGŁOWSKI. "Homologation tests of single-stage R02 reducer." Scientific Journal of Silesian University of Technology. Series Transport 101 (December 1, 2018): 149–57. http://dx.doi.org/10.20858/sjsutst.2018.101.14.

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Záruba, Petr, Jakub Jelínek, and Michal Kalinský. "Dynamic Testing of Buses and their Components." Journal of Middle European Construction and Design of Cars 15, no. 1 (June 27, 2017): 6–10. http://dx.doi.org/10.1515/mecdc-2017-0002.

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Abstract The article gives an overview of a virtual simulation method under ECE Regulation No. R66 - bus rollover. The first part of the article introduces the process of virtual simulations in terms of homologation. The conclusion is focused on the correlation of physical tests with virtual simulations.
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Kosiński, P., and J. Osiński. "Laminated Windshield Breakage Modelling in the Context of Headform Impact Homologation Tests." International Journal of Applied Mechanics and Engineering 20, no. 1 (February 1, 2015): 87–96. http://dx.doi.org/10.1515/ijame-2015-0006.

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Abstract The purpose of modelling a laminated windshield using the FEM is to provide a critical look on the way the adult headform impact tests are conducted in the process of motor vehicle certification. The main aim of the study is to modify the design of a laminated windshield in the context of a vehicle collision with vulnerable road users. The initial phase of the work was to develop a model of the adult headform impactor. The validation consisted in conducting a series of FEM analyses of the impactor certification testing according to the Regulation (EC) 631/2009. Next, the impact of the headform model on a windshield was analysed. The FEM model of laminated glass is composed of two outer layers of glass and an inner layer of polyvinyl butyral. FEM analyses of the impaction were performed at five points of the windshield characterised by various dynamic responses of the impactor and various patterns of glass cracking. In modelling the layers of glass, the Abaqus environment “brittle cracking” model was used. The following material models of PVB resin were considered: elastic, elastic-plastic, hyperelastic, and low-density foam. Furthermore, the influence of the mesh type on the process of glass cracking in a laminated windshield was analysed.
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WIŚNIOWSKI, Piotr, and Maciej GIS. "Representativeness of emissions of toxic substances in bench tests reflecting the road traffic conditions of a vehicle." Combustion Engines 177, no. 2 (May 1, 2019): 88–90. http://dx.doi.org/10.19206/ce-2019-215.

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The results of measurements of exhaust emissions in real road traffic differ significantly from the results of stationary homologation tests. One of the solutions, helpful in determining the actual emission, is the creation of stationary exhaust emission tests simulating the use of the vehicle on the road. The article presents the method of reconstructing the synthetic driving test obtained on the basis of road tests and presents the obtained profile of the speed course. The authors discussed the reasonableness of selecting the emission component determining the correctness of the representativity of the stationary test obtained, which determines the amount of work done by the engine.
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Ekert, Damjan, Jürgen Dobaj, and Alen Salamun. "Cybersecurity Verification and Validation Testing in Automotive." JUCS - Journal of Universal Computer Science 27, no. 8 (August 28, 2021): 850–67. http://dx.doi.org/10.3897/jucs.71833.

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The new generations of cars have a number of ECUs (Electronic Control Units) which are connected to a central gateway and need to pass cybersecurity integration tests to fulfil the homologation requirements of cars. Cars usually have a gateway server (few have additional domain servers) with Linux and a large number of ECUs which are real time control of actuators (ESP, EPS, ABS, etc. – usually they are multicore embedded controllers) connected by a real time automotive specific bus (CAN-FD) to the domain controller or gateway server. The norms (SAE J3061, ISO 21434) require cybersecurity related verification and validation. Fir the verification car manufacturers use a network test suite which runs > 2000 test cases and which have to be passed for homologation. These norms have impact on the way how car communication infrastructure is tested, and which cybersecurity attack patterns are checked before a road release of an ECU/car. This paper describes typical verification and validation approaches in modern vehicles and how such test cases are derived and developed.
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Skobiej, Kinga, and Jacek Pielecha. "Plug-in Hybrid Ecological Category in Real Driving Emissions." Energies 14, no. 8 (April 20, 2021): 2340. http://dx.doi.org/10.3390/en14082340.

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Transportation, as one of the most growing industries, is problematic due to environmental pollution. A solution to reduce the environmental burden is stricter emission standards and homologation tests that correspond to the actual conditions of vehicle use. Another solution is the widespread introduction of hybrid vehicles—especially the plug-in type. Due to exhaust emission tests in RDE (real driving emissions) tests, it is possible to determine the real ecological aspects of these vehicles. The authors of this paper used RDE testing of the exhaust emissions of plug-in hybrid vehicles and on this basis evaluated various hybrid vehicles from an ecological point of view. An innovative solution proposed by the authors is to define classes of plug-in hybrid vehicles (classes from A to C) due to exhaust emissions. An innovative way is to determine the extreme results of exhaust gas emission within the range of acceptable scatter of the obtained results. By valuating vehicles, it will be possible in the future to determine the guidelines useful in designing more environmentally friendly power units in plug-in hybrid vehicles.
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Pratellesi, A., S. Turrin, T. Haag, A. Scippa, and N. Baldanzini. "On the effect of testing uncertainties in the homologation tests of motorcycle helmets according to ECE 22.05." International Journal of Crashworthiness 16, no. 5 (October 2011): 523–36. http://dx.doi.org/10.1080/13588265.2011.611397.

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Pelosi, C., S. Joimel, and D. Makowski. "Searching for a more sensitive earthworm species to be used in pesticide homologation tests – A meta-analysis." Chemosphere 90, no. 3 (January 2013): 895–900. http://dx.doi.org/10.1016/j.chemosphere.2012.09.034.

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STELMASIAK, Zdzisław, Jerzy LARISCH, and Dariusz PIETRAS. "The influence of natural gas additive on the smoke level generated by diesel engines." Combustion Engines 161, no. 2 (April 1, 2015): 78–88. http://dx.doi.org/10.19206/ce-116895.

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The paper presents the results of investigations performed on a Fiat 1.3 MultiJet engine fueled with natural gas (CNG) and diesel oil. The primary aim was to determine the influence of a small additive of natural gas on the exhaust gas opacity under variable engine operating conditions. The tests were performed for the engine work points n–Mo (engine speed– torque) reproducing the NEDC cycle. The selection of the work points was carried out according to the criterion of greatest share in the NEDC homologation test, covering the entire engine field of work used in the realization of the test on a chassis dynamometer. In the tests, the authors applied different energy shares of natural gas in the range 15–35.6%. The smoke opacity was analyzed in the FSN and mass scales [mg/m3 ]. The results of the investigations may be used in the design of electronic controllers for natural gas engines and in the adaptation engines to CNG fueling.
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Chłopek, Zdzisław. "Some remarks on engine testing in dynamic states." Combustion Engines 143, no. 4 (November 1, 2010): 60–71. http://dx.doi.org/10.19206/ce-117131.

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The paper presents a systematic approach towards the problems of dynamics of combustion engines. The notions of work processes of combustion engines and operating conditions as well as engine states of operation have been formally introduced. An axiomatic qualification of the engine operating process as static and dynamic has been proposed. The systematics of the engine operating states has been described. As an example of application of the proposed formalism the results of exhaust emission tests from the Detroit Diesel engine Series 50 have been shown (operating in the conditions of a HDDTT homologation test). The exhaust emissions were tested in the states: the whole test – increasing engine speed, decreasing engine speed and engine speed above idle. A high sensitivity of the average emission rate to types of discussed dynamic states has been observed.
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Dissertations / Theses on the topic "Homologation tests"

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Rybková, Tereza. "Srovnání vybraných silničních nehod se stávajícími nárazovými zkouškami." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-232796.

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This master’s thesis presents an overview of the basic forces acting on the vehicle, the basic methods of analysis of accident, collection of data used in the analysis of accidents, an overview of the basic performance criteria and thresholds used in the homologation test of occupant protection in a frontal impact, used crash tests, homologation tests and specifications for these tests. Attention is paid to Euro NCAP crash tests and to homologation tests of vehicles Skoda Octavia with aim to try to compare them with selected accidents in terms of depth and character deformation and evaluate findings comparision.
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Books on the topic "Homologation tests"

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Jack, Li Jie, ed. Name reactions for homologations. Hoboken: Wiley, 2009.

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Book chapters on the topic "Homologation tests"

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Taber, Douglass F. "Functionalization and Homologation of C-H Bonds." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0020.

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Justin Du Bois of Stanford University developed (J. Am. Chem. Soc. 2010, 132, 10202) a Ru catalyst for the stereoretentive hydroxylation of 1 to 2. John T. Groves of Princeton University effected (J. Am. Chem. Soc. 2010, 132, 12847) equatorial chlorination of the test substrate 3. Kenneth M. Nicholas of the University of Oklahoma found (J. Org. Chem. 2010, 75, 7644) that I2 catalyzed the amination of 5. Thorsten Bach of the Technische Universität München established (Org. Lett. 2010, 12, 3690) that the amination of 7 proceeded with significant diastereoselectivity. Phil S. Baran of Scripps/La Jolla compiled (Synlett 2010, 1733) an overview of the development of C-H oxidation. Tethering can improve the selectivity of C-H functionalization. X. Peter Zhang of the University of South Florida devised (Angew. Chem. Int. Ed. 2010, 49, 10192) a Co catalyst for the cyclization of 9 to 10. Teck-Peng Loh of Nanyang Technological University established (Angew. Chem. Int. Ed. 2010, 49, 8417) conditions for the oxidation of 11 to 12. Jin-Quan Yu, also of Scripps/La Jolla, effected (J. Am. Chem. Soc. 2010, 132, 17378) carbonylation of methyl C-H of 13 to give 14. Sunggak Kim, now also at Nanyang Technological University, established (Synlett 2010, 1647) conditions for the free-radical homologation of 15 to 17. Gong Chen of Pennsylvania State University extended (Org. Lett. 2010, 12, 3414) his work on remote Pd-mediated activation by cyclizing 18 to 19. Many schemes have been developed in recent years for the oxidation of substrates to reactive electrophiles. Gonghua Song of the East China University of Science and Technology and Chao-Jun Li of McGill University reported (Synlett 2010, 2002) Fe nanoparticles for the oxidative coupling of 20 with 21. Zhi-Zhen Huang of Nanjing University found (Org. Lett. 2010, 12, 5214) that protonated pyrrolidine 25 was important for mediating the site-selective coupling of 24 with 23. Y. Venkateswarlu of the Indian Institute of Chemical Technology, Hyderabad, was even able (Tetrahedron Lett. 2010, 51, 4898) to effect coupling with a cyclic alkene 28. AB3217-A 32, isolated in 1992, was shown to have marked activity against two spotted spider mites. Christopher R. A. Godfrey of Syngenta Crop Protection, Münchwilen, prepared (Synlett 2010, 2721) 32 from commercial anisomycin 30a. The key step in the synthesis was the oxidative cyclization of 30b to 31.
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Conference papers on the topic "Homologation tests"

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Broatch, Alberto, Vicente Bermúdez, Jose Ramón Serrano, Roberto Tabet-Aleixandre, Javier Gómez, and Stefan Bender. "Analysis of Passenger Car Turbocharged Diesel Engines Performance When Tested at Altitude and of the Altitude Simulator Device Used." In ASME 2018 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icef2018-9549.

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According to current worldwide trends for homologation vehicles in real driving conditions, is forced to test the engines in altitude and in highly dynamic driving cycles in order to approach nowadays and next future emissions standard. Up to now, there were two main options to perform this type of tests: round-robin tests of the whole vehicle or hypobaric chambers, both with high costs and low repeatability. In this paper a new device is described, which can emulate ambient conditions at whatever altitude between sea level and 5000m high. Even it can be used to emulate ambient conditions at sea level when test bench is placed up to 2000 m high. The main advantages of the altitude simulation equipment are: dynamic emulation of all the psychrometric variables affecting the vehicles during round-robin tests; lower space usage and low energy consumption. The altitude simulator has been validated comparing with results from a hypobaric chamber at different altitudes. Previously a research about the dispersion in the measurements of both testing devices has been done for assessing the results of the comparison experiment. Final conclusion resulted in the same operating performance and emissions of the studied engine with both types of testing equipments for altitude simulation.
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Liu, Yang, Richard D. Burke, Sam Akehurst, and Qingning Zhang. "Numerical Investigation Into the Performance and Efficiency Trade-Off for a Mechanically Decoupled Electric Boosting System." In ASME 2017 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icef2017-3534.

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Electric turbochargers offer an additional degree of freedom in engine design to meet the conflicting needs of emissions, fuel consumption and performance targets. This paper presents a simulation study of the application of a mechanically decoupled electric turbocharger to a 2.0L Gasoline engine. The aim of this work is to investigate and quantify how the sizing of the turbine influences performance and efficiency both in steady state and over homologation and on-road duty cycles. Steady state simulations are performed in a GT Power 1D gas dynamics model that includes a simplified model of the electric turbocharger. The 1D model was used to create a mean value engine model for the drive cycle simulations. The turbine diameter was varied from 58mm to 78mm (representing 50%–150% of the baseline turbine size). In steady state conditions, the electric turbocharger achieved a maximum of 1.5% improvement in system efficiency. Larger turbines can improve efficiency by reducing the engine pumping loss, however, they compromise the amount of electrical energy that can be harvested in the low engine speed region. This is problematic as this represents a key area of engine operation in a passenger vehicle. A series of mean value engine models were created for different sized turbines to predict BMEP, turbine power generation and overall system efficiency — these were used to evaluate performance over key duty cycles. The mechanically-decoupled electric turbocharger can generate up to 0.38kW average power in the real road driving simulation which can greatly increase the engine fuel economy. In NEDC and WLTP cycles, the e-turbo system can always generate energy and store it into battery (0.21kW and 0.23kW average power in the whole cycle respectively). In several real road driving tests, the energy consumption of the compressor exceeds that of the turbine due to significant running in the low speed/high torque region (A 0.04kW in specific on-road cycle simulation). The sensitivity of these results to vehicle gear ratios and electrical system efficiency is also presented.
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Porto, Antonio Arlindo Guidetti, and Rodolfo Décio Ferreira. "Test Methodologies for Approving and Homologating Railway Sleepers (Ties)." In SAE Brasil 2007 Congress and Exhibit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-2959.

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Menendez, Adrian. "Mexico City Traffic and Los Angeles City Traffic Testing: An Approach to Test Route Development for Results Homologation." In SAE 2012 Brake Colloquium & Exhibition - 30th Annual. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2012. http://dx.doi.org/10.4271/2012-01-1808.

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Lijewski, Piotr, and Jerzy Merkisz. "Time Density of Engine Operation in Non-road Vehicles in the Aspect of the Homologation Toxic Emission Test." In SAE 2010 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2010. http://dx.doi.org/10.4271/2010-01-1282.

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Bassetti, M., F. Braghin, and F. Castelli-Dezza. "Digital Multirange 3Axis MEMS Accelerometer for Railway Applications." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-13112.

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In many mechanical applications, measuring accelerations along three orthogonal directions is very important. Especially in railway application a rugged, easy-to-configure and low-noise device could be useful to measure the dynamics of the train. Moreover, freight or passenger trains behave very differently and for homologation purposes accelerometers have to be placed both on the axel-boxes, on the bogies and on the carbody. Therefore, accelerometers with different scales along X,Y and Z axes are required. The present paper presents the design, calibration and test on a freight train of new low cost MEMS accelerometers having sensibility that can be interactively adjusted between ±2g, ±16g and ±40g independently over the three axes. The output of these accelerometers can be set either to digital or to analog (with compensation of the cable length). In the paper the design of the nodes both from the electronic and mechanical points of view is presented. The results of the calibration and of the experimentation are also shown.
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