Mechatronics in Japanese Rail Vehicles: Active and Semi-Active Suspensions

Tanifuji, Katsuya; Koizumi, Satoshi; Shimamune, Ryohei

doi:10.1016/s1474-6670(17)39153-x

Cited by 10 publications

(4 citation statements)

References 1 publication

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“…As this study has confirmed that tilting technology may be beneficial to improving speed and comfort, it has noted that expenditures required for such an upgrade far surpasses the required benefits. ALS systems have been proven to work impeccably well in the automotive industry [31,32] and is being fully researched for train applications [33][34][35]. It can be predicted that considering speed is not important in the current metro network, an implementation of active suspension systems can meet the required comfort levels which would warrant highly increased customer satisfaction without the need for an ''over the top'' overhaul of the entire metro fleet and network.…”

Section: Future Studymentioning

confidence: 99%

Suitability of Tilting Technology to the Tyne and Wear Metro System

Darlton

Маринов

2015

Urban Rail Transit

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This paper attempts to determine the suitability of tilting technology as applied to metro systems, taking the Tyne and Wear Metro as its base case study. This is done through designing and implementing of several tests which show the current metro situation and reveals possible impacts on ride comfort and speed, in case tilting technology has been implemented. The paper provides brief background literature review on tilting technology, its different designs and types, control systems, customer satisfaction and history on the Tyne and Wear metro system. Ride comfort evaluation methods, testing of the Metro fleet comfort levels and simulation modelling through the use of OpenTrack simulator software are also introduced. Results and findings include test accuracy and validations and suggest that although tilting technology could be beneficial with respect to speed (minimal improvements) and comfort, implementing it to the Tyne and Wear metro would be an unwise decision owing to the immense amount of upgrades that would be needed on both the network and the metro car fleet. Therefore, recommendations are subsequently made on alternative systems which could achieve or surpass the levels of comfort achievable by tilting technology without the need for an outright overhaul of lines and trains.

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Section: Future Studymentioning

confidence: 99%

Suitability of Tilting Technology to the Tyne and Wear Metro System

Darlton

Маринов

2015

Urban Rail Transit

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“…In the beginning of the 1980s, the old Japanese National Railways (JNR) tested lateral active suspension with pneumatic actuators which halved the vibration at 120 km/h [76]. After the privatization of JNR, the JR-East in 1991 made field tests on Series 400 EC train where pneumatic actuators and H 1 control were implemented for full-active suspension in lateral direction at maximum test speeds up to 240 km/h.…”

Section: Implementation Of Active Secondary Suspension In Lateral Dirmentioning

confidence: 99%

Active suspension in railway vehicles: a literature survey

Giossi

Persson

et al. 2020

Rail. Eng. Science

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Since the concept of active suspensions appeared, its large possible benefits has attracted continuous exploration in the field of railway engineering. With new demands of higher speed, better ride comfort and lower maintenance cost for railway vehicles, active suspensions are very promising technologies. Being the starting point of commercial application of active suspensions in rail vehicles, tilting trains have become a great success in some countries. With increased technical maturity of sensors and actuators, active suspension has unprecedented development opportunities. In this work, the basic concepts are summarized with new theories and solutions that have appeared over the last decade. Experimental studies and the implementation status of different active suspension technologies are described as well. Firstly, tilting trains are briefly described. Thereafter, an indepth study for active secondary and primary suspensions is performed. For both topics, after an introductory section an explanation of possible solutions existing in the literature is given. The implementation status is reported. Active secondary suspensions are categorized into active and semi-active suspensions. Primary suspensions are instead divided between acting on solid-axle wheelsets and independently rotating wheels. Lastly, a brief summary and outlook is presented in terms of benefits, research status and challenges. The potential for active suspensions in railway applications is outlined.

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“…The ALS has been studied analytically and tested experimentally since 1970. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] The mechatronics system for theALS consists of sensors, actuators and a controller. [1] The mechatronics systems already have proven performance in tilting trains.…”

Section: Introductionmentioning

confidence: 99%

“…The type of actuator used determines the type of system, either a semi-active suspension or anALS.Among the various actuators that have been used for trains, the solenoid-type actuator, which is in fact an electro-magnetic actuator, has been popularly used because of its faster response time and wider frequency bandwidth compared to those of hydraulic and pneumatic actuators. The semi-active suspension system using a hydraulicsolenoid valve was adopted for the Shinkansen of Japan in 1995 [2] and the active system was partly introduced in 2002. However, problems of a tank addition and oil leakage arose in application of the hydraulic or pneumatic system.…”

Section: Introductionmentioning

confidence: 99%

Hardware-in-the-loop simulation experiment for semi-active vibration control of lateral vibrations of railway vehicle by magneto-rheological fluid damper

Kwak¹,

Lee²,

Yang³

et al. 2014

Vehicle System Dynamics

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Hardwarein-the-loop simulation experiment for semi-active vibration control of lateral vibrations of railway vehicle by magneto-rheological fluid damper, Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility, 52:7, 891-908,The active lateral suspension (ALS) of a train consists of either active or semi-active technologies. However, such an active system on a real railway vehicle is not easy to test because of cost and time. In this study, a hardware-in-the-loop simulation (HILS) system is developed to test the ALS. To this end, the dynamic model of a railway vehicle is equipped with the actuator, two bogies and four-wheel sets, and the ALS is used. The proposed HILS system consists of an alternating current servo motor connected to a ball-screw mechanism and a digital control system. The digital control system implements the dynamic model and the control algorithm. The design and manufacture of the HILS system are explained in detail. Both the passive damper and the magneto-rheological (MR) fluid damper are tested using the HILS system, where the sky-hook control algorithm was applied for the MR fluid damper. Experimental results show that the proposed HILS system can be effectively used for the performance estimation of the ALS.

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Mechatronics in Japanese Rail Vehicles: Active and Semi-Active Suspensions

Cited by 10 publications

References 1 publication

Suitability of Tilting Technology to the Tyne and Wear Metro System

Suitability of Tilting Technology to the Tyne and Wear Metro System

Active suspension in railway vehicles: a literature survey

Hardware-in-the-loop simulation experiment for semi-active vibration control of lateral vibrations of railway vehicle by magneto-rheological fluid damper

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