Temat: bus - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The analysis of ANPR camera location points in bus lanes monitoring system in the city of Warsaw
Autorzy:: Matysiak, A.
Kruszewski, M.
Niezgoda, M.
Kamiński, T.
Powiązania:: https://bibliotekanauki.pl/articles/246259.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
public transport
ANPR
monitoring
bus lane
bus-only lanes
Opis:: Warsaw has the most developed public transportation system in Poland and, therefore, the longest network of bus only lanes. The studies show a significant number of their violations made by individual vehicles, mostly because of complex traffic conditions and lack of physical separation from the other road lanes. This situation leads not only to road traffic law violations, but also mainly to disturbance in regularity and efficiency of bus connections. According to similar solutions implemented in other cities, Motor Transport Institute designed a concept bus lane enforcement system for Warsaw, which comprises the analysis of state-of-the-art law regulations on using monitoring systems in Poland, as well as operational and technical conditions for implementing the designed system and the concept of the system and system architecture itself. During the research, Motor Transport Institute conducted a complex audit of the bus lanes, in result of which the desired locations for ANPR camera points were identified. The article thoroughly describes the Polish law regulations on ANPR cameras location and confronts is with the actual needs regarding specific urban road sections. It also presents the methodology adopted for localizing the camera points. As a result, several examples of proposed locations are presented and discussed in terms of their compliance with the regulations, necessity for changing the traffic system on the specific road section and efficiency in bus lane enforcement.
Źródło:: Journal of KONES; 2013, 20, 4; 269-275
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Economic aspects of selecting means of bus transport
Autorzy:: Woropay, M.
Perczyński, D.
Powiązania:: https://bibliotekanauki.pl/articles/247628.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
bus transport
maintenance process
road transport
Opis:: The paper presents a method of selecting technical objects for performance of the tasks received by the controlling subsystem. The investigation object, being the basis to illustrate considerations presented herein, is an operation and maintenance system of an urban bus transport in a selected agglomeration. Transportation of passengers by means of bus transport is performed in the determined quantitative and territorial scope (specified by a schedule of transport task performance). When operating and maintaining buses various events occur, the results of which have an influence on the processes of using and servicing the buses, as well as on their technical condition and economic effect of the work of the system in which they are used. The buses of an urban transport system, during the operation and maintenance process, may be in various maintenance states forming the state space S. It is important, in the aspect of assuring continuity of performance of transport tasks and the technical and economic efficiency achieved by the system, that as many vehicles aspossible are in the state of serviceability and perform the transport tasks during the phase of a working cycle. It is affected by such factors as: the features of the vehicles being operated and maintained, the type of the equipment and number of the service sites of the service station and of the units of technical emergency service, providing the units of technical emergency service with diagnostic apparatuses, the nature of the transport tasks being performed, the method and scope of performance of the s ervice processes and others. So, there is apossibility to have an influence on the system economic efficiency by selecting the buses with the use of the economic criterion.
Źródło:: Journal of KONES; 2010, 17, 3; 513-519
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Multi - material design optimization of a bus body structure
Autorzy:: Korta, J.
Uhl, T.
Powiązania:: https://bibliotekanauki.pl/articles/247771.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: weight reduction
bus structure
structural optimization
multi-material design
Opis:: In the recent years the safety and eco-friendliness have gained much of attention of the automotive stakeholders. These two characteristics are especially important in the case of mass transportation vehicles, such as buses or coaches, which are in continues use for long periods of time, covering significant distances. In such situations, the economical aspects play major role for the transportation companies which try to minimize operational costs of their fleet, by choosing vehicles with reduced fuel consumption. In order to obtain improvements in all the mentioned areas and hence to strengthen their position on the market, bus manufacturers have recently turned their attention to multimaterial design strategies. Structures built in that manner consist not only of regular steel parts, but contain also a mix of components made from various lightweight materials like aluminum alloys or composites, which allow for significant reduction in vehicle curb weight. However, due to the differences in mechanical characteristics which are especially evident in the case of laminates, the material substitution is not a straightforward task. In order to find the material distribution pattern that meets all the requirements, a great number of prototypic numerical models must be prepared and tested. To ease the search for the final solution, optimization techniques can be applied into the design process, allowing for automatic design modifications and assessment of the obtained results. The paper presents an attempt of enhancing the operational characteristics of a bus body structure with simultaneous reduction in the structural weight. In order to find the optimal component configuration, a multimaterial optimization was employed and supplemented by sensitivity and robustness analyses. Such a technique helps to discriminate the over-optimized solutions that are often pointed out as the most desirable by the optimization algorithms which neglect the uncertainties of the analysed system.
Źródło:: Journal of KONES; 2013, 20, 1; 139-146
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Possibilities of using a wireless telemetry system of a recreational vehicle (off-road)
Autorzy:: Graba, M.
Mamala, J.
Hennek, K.
Prażnowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/244548.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: telemetry
wireless data acquisition
all-terrain vehicle
CAN bus
Opis:: The development of electronic systems has significantly contributed to the rapid increase in the number of controllers working in vehicles, and thus the amount of data transferred between them. The large amount of information sent prevents the driver from directly mastering or understanding them, hence it was necessary to limit the displayed parameters on the instrument cluster to the most important ones, so that the driver can focus on driving. However, in motor sports and in various types of road tests or research, where the driver is supported by an additional team of engineers, information sent between vehicle controllers can prove extremely valuable. Most often, the whole staff of people responsible for conducted traction tests does not occupy the vehicle, so as not to disturb the conditions. Their analysis usually takes place in a designated service spot, in which case the parameters from the on-board data transmission network are usually transmitted by radio from the vehicle to the archiving system. Therefore, research into the development of wireless data transmission systems from vehicle controllers is also carried out at the Opole University of Technology. This article describes the possibilities of using a system built at the Opole University of Technology for wireless conduction of diagnostics and analysis of current operating parameters of a recreational All-Terrain Vehicle (ATV). In addition, in the designed system, it is also possible to connect external sensors to analyse parameters normally not registered during the course on normal vehicle operation.
Źródło:: Journal of KONES; 2018, 25, 3; 197-203
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The System for estimation parameters of internal combustion engine in the road test
Autorzy:: Mamala, J.
Brol, S.
Bieniek, A.
Powiązania:: https://bibliotekanauki.pl/articles/242285.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: internal combustion engines
road test
system of data transmission CAN BUS
Opis:: Current internal combustion engine technology for road vehicles allows us to meet the existing and planned future standards for emission. However, the motion of a moving vehicle used in real operating conditions is frequent changes of the values of power in the powertrain. The analysis of the results of the road test through a measurement of parameters of engine in a passenger car proves, that the changes of parameters engine are frequent. The paper presents method measurement parameters form system of data transmission CAN BUS and estimation is performed using measurement accelerometer car's chassis of parameters internal combustion engine determined on road test. Estimation of main parameters of internal combustion engine is made with use of measured quantities such as: car mass and acceleration collected in function of vehicle linear velocity. The most essential problems in this approach, considered as primary method errors, are minimization of underestimation of moment of inertia of rotating elements in drivetrain and efficiency of drivetrain itself. Moreover it is vital to determine as precise as possible vehicle acceleration and its linear velocity in presence of disturbances - mainly chassis movements and additional accelerations, which comes from pavement unevenness (roughness). In this article application of several sensors of different quantities for increase of accuracy of PAAF 2 (Power Acceleration And Force) device in relation to prototype device predecessor is taken into consideration.
Źródło:: Journal of KONES; 2011, 18, 2; 279-286
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Criticism of possibility of traveling by bus by disabled person using wheelchair
Autorzy:: Olejnik, K.
Woźniak, G.
Powiązania:: https://bibliotekanauki.pl/articles/243611.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: disabled person on wheelchair
getting in and getting out of the bus
Opis:: The European Parliament and the European Council in directive 2001/85 EC of 20 November 2001 decided to reach out the necessity of disabled people using wheelchairs. Solutions that have been proposed are equitable but they exact from constructors to invent new technical devices. In this report have been assessed law regulations relating to provide structural requirements facilitating disabled people using wheelchairs to get in as well as to get out of the bus. Particularly we have assessed mentioned problem taking into consideration new-produced small busses, in which the floor is situated relatively high up off the road. The restrictions relating to comply the law recommendations being in force have been criticized. We shall among others permanently updating our national legislation in order to adapt it to requirements enclosed in appropriate directives issued by EU authorities. The life of disabled people in society is full of problems with locomotion. We have proposed the new structural solution supporting disabled people to get in and to get out of the bus. The functional tests have been made on physically prepared mechanism and positive results have been achieved. The bus with a new solution has a big chance to receive a type approval certificate as well as to be accustomed into mass production. This vehicles are the most common one in use to transport disabled people on a short distances. From economical point of view for transport operators as well as for bus owners such solutions are unfavourable.
Źródło:: Journal of KONES; 2008, 15, 3; 411-416
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Development of computer based procedure for quantitative evaluation of bus superstructure in type approval
Autorzy:: Nurhadi, I.
Zain, R.
Powiązania:: https://bibliotekanauki.pl/articles/246415.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ECE R66
bus superstructure
rollover test
FEA
quasi-static incremental loading
elastic plastic
Opis:: This paper deals with development of a computer simulation procedure, as a substitute for physical rollover test, to evaluate bus body structure crashworthiness. It is expected that, when completed, this procedure can be proposed to the authority to enhance its current type approval procedure related to crashworthiness which is merely based on qualitative and empirical field experiences without performing real rollover test. This procedure will enable afirmer base for judging the crashworthiness of bus structure. The proposed computer simulation procedure is being developed based on ECE R66 which allows partial bus body structure to be physically tested. In this case, sections of bus super structure built up from at least two bays are used to represent the whole structure. A finite element method computer program capable of dealing with elastic plastic calculation is employed to calculate deflection of a bay structure under incremental quasi-static loading until residual space limit is reached. From the obtained force-deflection curve, the strain energy absorption capacity of the structure will be evaluated if it is large enough to absorb potential energy resulting from rollover test. A bus body superstructure sample from a representative domestic bus manufacturer is used as test cases.
Źródło:: Journal of KONES; 2010, 17, 2; 371-378
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Computer modelling of energy absorbing capability of bus superstructure for rollover safety
Autorzy:: Nurhadi, I.
Zain, R.
Mihradi, S.
Soe Oo, K.
Powiązania:: https://bibliotekanauki.pl/articles/242230.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ECE R66
bus superstructure
rollover test
residual space
FEA
quasi-static incremental loading
elastic-plastic
Opis:: This paper describes further investigations that have been carried out to make the proposed procedure [5] becomes more reliable to be practically applied as a requirement in bus type approval. One important aspect highlighted in this paper is an effort to improve the accuracy of the FEA model by taking into account detailed construction of bus superstructure. It worth to note that, based on survey carried out on several bus manufacturers, the detailed construction may vary from manufacturer to manufacturer. As a case study, a bus superstructure from a prominent manufacturer was chosen as a sample. Energy absorbing capacity of a bus superstructure section consisting of four bays including rear entrance door, emergency door and rear end was investigated through elastic-plastic finite element model. Incremental quasy static load according to ECE R66 was applied, subsequently to the right and left cantrail to obtain load deflection curve. Then the energy absorbing capacity of the structure when residual space limit was reached was evaluated through derived energy deflection curve. Essential components of the bus superstructure governing its energy absorbing capacity will be discussed. Modeling strategy in dealing with elastic-plastic analysis for such a rather complex structure is also highlighted.
Źródło:: Journal of KONES; 2011, 18, 2; 331-338
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Prototype of electric bus of AMZ Kutno
Autorzy:: Pawelski, Z.
Maciejczyk, A.
Wróbel, T.
Powiązania:: https://bibliotekanauki.pl/articles/244239.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: electric bus
electric drive system
electric motor
inverter
microprocessor control system
pack of batteries
batteries management system
supercapacitor
energy recuperation system
Opis:: The article discusses the prototype bus AMZ Kutno electrically driven. The aim of the project prototype electric powered bus was appointed a consortium consisting of AMZ Kutno and Department of Vehicles and Fundamentals of Mechanical Engineering of Technical University of Lodz. As a subcontractor prototype solutions involved: for battery power BMZ Gliwice, and for the control system ENIKA Lodz. The prototype bus with complete drive system is an entirely polish construction. The paper presents assumptions for the construction of a prototype electric drive system. It describes the criteria for the selection of the engine. Was analysed the available parameters of electric motors. Adopted electric motor is discussed in detail in terms of its performance characteristics. Required performance characteristics of electric motor shown in figure. The considerations taken into account and the aspect of the selection of the inverter and the microprocessor control system control the amount of energy in batteries and supercapacitors, depending on the instantaneous energy demand and the expected driving performance. Was compared the parameters of available batteries and set them the necessary capacity. It has been specified parameters of adopted battery pack. Was described the role and selection of supercapacitors in energy recuperation system provided. The assumptions were supported by the necessary calculations.
Źródło:: Journal of KONES; 2014, 21, 1; 197-204
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Research of the pollutant emission from a city bus engine
Badania emisji zanieczyszczeń z silnika autobusu miejskiego
Autorzy:: Chłopek, Z.
Powiązania:: https://bibliotekanauki.pl/articles/949477.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: silniki spalinowe
silniki autobusów miejskich
emisja zanieczyszczeń
testy emisji zanieczyszczeń
internal combustion engines
city bus engines
pollutant emission
pollutant emission tests
Opis:: Methods of test synthesis to research the internal combustion engines used in different, other then typical automobile vehicle applications are presented. Results of empiric research of pollutant emission from a self ignition engine in static and dynamic tests are analyzed. The conditions of the engine use are compatible with the homologation tests and work conditions of city bus engines. The need of the possibilities for the objective opinion of useful properties of internal-combustion engines requires the applications of the research methods respondent to the real levels of engines service. The static and dynamic tests, worked out by the author, were used to the research of pollutant emission from the city bus engine. The results of pollutant emission from the engine were sensibility on conditions of the engine use. On the base of performed investigations and from secured experiences in the hitherto existing works it is possible to formulate following conclusions: results of empirical research performed on the work conditions of the of internal-combustion engines during their real usage enable the synthesis of a priori research tests, simulating engine work conditions, therefore the causes of the processes describing engine properties. The emissions of pollution from the internal combustion engine are strongly susceptible on the work conditions of the engines, both static states and occurrence of dynamic states.
W pracy przedstawiono metody syntezy testów do badań właściwości silników spalinowych o specyficznych zastosowaniach różnych od zastosowań do napędu typowych pojazdów samochodowych. Przeanalizowano wyniki badań empirycznych emisji zanieczyszczeń z silnika o zapłonie samoczynnym w testach statycznych i dynamicznych, odpowiadających różnym warunkom użytkowania silnika. Warunki te dotyczą użytkowania silnika spalinowego do napędu samochodu zgodnie z testami homologacyjnymi oraz do napędu autobusu miejskiego. Potrzeba możliwości obiektywnej oceny użytkowych właściwości silników spalinowych wymaga stosowania metod badawczych odpowiadających rzeczywistym warunkom eksploatacji silników. Do badań emisji zanieczyszczeń w warunkach innych niż homologacyjne wykorzystano testy badawcze: statyczne i dynamiczne, wyznaczone przez autora dzięki badaniom empirycznym warunków pracy silnika spalinowego w czasie jego rzeczywistego użytkowania w autobusie miejskim. Wyniki badań emisji zanieczyszczeń z silnika spalinowego wykazały znaczną wrażliwość na warunki jego użytkowania. Na podstawie przeprowadzonych badań oraz doświadczeń zdobytych w dotychczasowych pracach można sformułować następujące wnioski: wyniki badań empirycznych, przeprowadzanych nad warunkami pracy silników spalinowych w czasie ich rzeczywistego użytkowania, umożliwiają syntezę apriorycznych testów badawczych, symulujących warunki pracy, a więc przyczyny procesów opisujących właściwości silników. Emisje zanieczyszczeń z silnika spalinowego są silnie wrażliwe na warunki pracy silników, zarówno stanów statycznych, jak i występowania stanów dynamicznych.
Źródło:: Journal of KONES; 2008, 15, 3; 67-74
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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