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    Wyświetlanie 1-4 z 4
    Tytuł:
    Nowe hybrydowe pociągi w Japonii
    The new hybrid trains in Japan
    Autorzy:
    Nakamura, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/250381.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Naukowo-Wydawniczy TTS
    Tematy:
    pociąg hybrydowy
    Japonia
    transport kolejowy
    hybrid train
    Japan
    railway transport
    Opis:
    Hybrydowe (spalinowo-elektryczne) zespoły trakcyjne zostały dostarczone do obsługi linii magistralnych Tohoku i Senseki w Japonii na początku 2015 r., gdy pojawiła się konieczność zapewnienia alternatywnej obsługi trakcyjnej po trzęsieniu ziemi i falach tsunami z połowy marca 2011 r.
    Źródło:
    TTS Technika Transportu Szynowego; 2015, 5; 19
    1232-3829
    2543-5728
    Pojawia się w:
    TTS Technika Transportu Szynowego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of transverse stability parameters of hybrid buses with active trailers
    Autorzy:
    Sakhno, V.
    Poliakov, V.
    Murovanyi, I.
    Selezniov, V.
    Vovk, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/196391.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    bus
    hybrid auto-train
    transverse stability
    stiffness
    suspension
    roll
    autobus
    auto-pociąg hybrydowy
    stabilność poprzeczna
    sztywność
    zawieszenie
    rolka
    Opis:
    The objective of the article is to determine the transverse stability indexes of hinge-connected buses (HCBs) by applying the computation-analytical method. The transverse stability parameters of hybrid buses with active trailers are analysed. Based on these parameters (the angles of the roll and redistribution of loads on the sides), the analytical dependences are developed. The dependences describe the movement of the parts of HCBs in the vertical plane. Considering the action of longitudinal and transverse forces, the roll angles of the bus and the trailer were determined. The limiting angle of the side roll of the bus rollover was found to be γамах = 27.560γмах, and the trailer rollover to be γамах = 30.210. The obtained transverse stability indexes of HCBs with a hybrid power plant testify to the compliance with the standard DSTU UN/ECE R 111-00.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2018, 101; 185-201
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on speed control of high speed trains based on hybrid modeling
    Autorzy:
    Hou, Tao
    Tang, Li.
    Niu, Hong-xia
    Zhao, Tingyang
    Powiązania:
    https://bibliotekanauki.pl/articles/27311802.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    high-speed train
    hybrid modeling
    speed control
    error compensation
    pociąg ekspresowy
    modelowanie hybrydowe
    kontrola prędkości
    kompensacja błędów
    Opis:
    With the continuous improvement of train speed, the automatic driving of trains instead of driver driving has become the development direction of rail transit in order to realize traffic automation. The application of single modeling methods for speed control in the automatic operation of high-speed trains lacks exploration of the combination of train operation data information and physical model, resulting in low system modeling accuracy, which impacts the effectiveness of speed control and the operation of high-speed trains. To further increase the dynamic modeling accuracy of high-speed train operation and the high-speed train's speed control effect, a high-speed train speed control method based on hybrid modeling of mechanism and data drive is put forward. Firstly, a model of the high-speed train's mechanism was created by analyzing the train's dynamics. Secondly, the improved kernel-principal component regression algorithm was used to create a data-driven model using the actual operation data of the CRH3 (China Railway High-speed 3) high-speed train from Huashan North Railway Station to Xi'an North Railway Station of "Zhengxi High-speed Railway," completing the mechanism model compensation and the error correction of the speed of the actual operation process of the high-speed train, and realizing the hybrid modeling of mechanism and data-driven. Finally, the prediction Fuzzy PID control algorithm was developed based on the natural line and train characteristics to complete the train speed control simulation under the hybrid model and the mechanism model, respectively. In addition, analysis and comparison analysis were conducted. The results indicate that, compared to the high-speed train speed control based on the mechanism model, the high-speed train speed control based on hybrid modeling is more accurate, with an average speed control error reduced by 69.42%. This can effectively reduce the speed control error, improve the speed control effect and operation efficiency, and demonstrate the efficacy of the hybrid modeling and algorithm. The research results can provide a new ideal of multi-model fusion modeling for the dynamic modeling of high-speed train operation, further improve control objectives such as safety, comfort, and efficiency of high-speed train operation, and provide a reference for automatic driving and intelligent driving of high-speed trains.
    Źródło:
    Archives of Transport; 2023, 66, 2; 77--82
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quantitative safety analysis of train control system based on statistical model checking
    Autorzy:
    Lin, Junting
    Min, Xiaoqin
    Powiązania:
    https://bibliotekanauki.pl/articles/2124711.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    train control systems
    statistical model checking
    safety analysis
    hybrid automata
    UPPAAL-SMC
    system sterowania pociągiem
    analiza bezpieczeństwa
    automaty hybrydowe
    Opis:
    With the rapid development of communication technology, the Train-centric Communication-based Train Control (TcCBTC) system adopting the train-train communication mode to reduce the transmission link of control information, will become the direction of urban rail transit field development. At present, TcCBTC system is in the stage of key technology research and prototype development. Uncertain behavior in the process of system operation may lead to operation accidents. Therefore, before the system is put into use, it must undergo strict testing and security verification to ensure the safe and efficient operation of the system. In the paper, the formal modeling and quantitative analysis of train tracking operation under moving block are carried out. Firstly, the structure of TcCBTC system and the train tracking interval control strategy under moving block conditions are analyzed. The subsystem involved in train tracking and the uncertain factors in system operation are determined. Then, based on the Stochastic Hybrid Automata (SHA), a network of SHA model of train dynamics model, communication components and on-board controller in the process of train tracking is established, which can formally describe the uncertain environment in the process of system operation. UPPAAL-SMC is used to simulate the change curve of train position and speed during tracking, it is verified that the model meets the safety requirements in static environment. Finally, taking Statistical Model Checking (SMC) as the basis of safety analysis, the probability of train collision in uncertain environment is calculated. The results show that after accurately modeling the train tracking operation control mechanism through network of SHA, the SMC method can accurately calculate the probability of train rearend collision, which proves that the method has strong feasibility and effectiveness. Formal modeling and analysis of safety-critical system is very important, which enables designers to grasp the hidden dangers of the system in the design stage and safety evaluation stage of train control system, and further provides theoretical reference for the subsequent TcCBTC system design and development, practical application and related specification improvement.
    Źródło:
    Archives of Transport; 2022, 61, 1; 7--19
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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