Fault-tolerant design and evaluation for a railway bogie active steering system

Fu, Bin; Bruni, Stefano

doi:10.1080/00423114.2020.1838563

Cited by 11 publications

(11 citation statements)

References 20 publications

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“…Moreover, the safety and reliability of the actuation system are highly relevant to the selection and design of mechatronic suspensions. 29 An objective comparison of the suspension schemes from the perspective of ride comfort improvement needs a common set-up of controllers and sensors, as can been seen that minimizing carbody accelerations at three locations is used for all four mechatronic suspension schemes in the controller in this paper. However, it is worth recalling that the final implementation of a mechatronic suspension scheme should also consider other factors not addressed in this paper such as suspension deflection, weight functions and sensor set-up.…”

Section: Discussionmentioning

confidence: 99%

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An examination of alternative schemes for active and semi-active control of vertical car-body vibration to improve ride comfort

Bruni

2021

Proceedings of the Institution of Mechanical Engineers, Part F:

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The recent tendency to reduce the weight of car bodies is posing a new challenge to vertical ride quality, since the vibrations related to car-body vertical bending modes affect heavily passengers’ comfort and cannot be fully mitigated by conventional vehicle suspensions. In this work, four mechatronic suspensions, considering active and semi-active technologies in secondary and primary suspensions, are compared to show their relative merits. LQG and H∞ model-based control strategies are established in a consistent way for each suspension scheme to perform a comparative assessment of the four concepts on objective grounds. A two-dimensional 9-DOF vehicle model is firstly built, using a simplified representation of car-body bending modes; this model is also used to design the model-based controllers. The comparison of the four mechatronic suspension schemes based on the 9-DOF model shows that full-active secondary suspension is the most effective solution whilst semi-active primary suspension is also effective in terms of mitigating car-body bending vibration. Then, a three-dimensional flexible multibody system (FMBS) vehicle model integrated with a finite-element car-body is considered to allow a more detailed consideration of the vehicle’s vibrating behaviour. The results of the FMBS model show a good agreement to the results of the 9-DOF model and the relative merits of the four mechatronic suspension schemes as found from the previous analysis are basically confirmed, although the FMBS model is more suited for a quantitative assessment of ride quality.

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Section: Discussionmentioning

confidence: 99%

“…Moreover, the safety and reliability of the actuation system are highly relevant to the selection and design of mechatronic suspensions. 29…”

Section: Discussionmentioning

confidence: 99%

An examination of alternative schemes for active and semi-active control of vertical car-body vibration to improve ride comfort

Bruni

2021

Proceedings of the Institution of Mechanical Engineers, Part F:

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“…Information regarding their characteristics or technical maturity can be advantageously drawn from the field of civil aviation, where the use of actuators is much more widespread and where the use of hydraulic and electrohydraulic actuators is still predominant. However, the electro-mechanical actuator is increasingly being used because of its good characteristics [5]. Hydraulic actuators are very often used in aviation due to their technical maturity, high power density or good safety in case of failure.…”

Section: Classification By Source Of Forcementioning

confidence: 99%

Cooperation of active steering control of wheelsets with subsystems of an autonomous urban rail vehicle

Vrba

2023

APP

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The paper presents the motivations for the application of actively controlled elements in the running gear of a rail vehicle and the challenges that need to be addressed before deploying vehicles with actively controlled elements in real operation. Furthermore, the paper presents the design of an active element concept and its control for steering the axles of an urban rail vehicle to improve the vehicle’s passage through small radius curves. The design takes into account the fundamental issues of cost and safety of the application of active elements, which are addressed in the presented control design by using data from autonomous driving subsystems such as the environmental database or the anti-collision system.

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“…Electro-Hydrostatic Actuator (EHA) is the other promising technology for active steering. However, considering that the working frequency of active steering is normally under 2Hz and the dynamic behaviors of HSA and EHA are negligible based on the two available models [14], we implement an HSA model in this work.…”

Section: Model Of Active Steering Actuation Systemmentioning

confidence: 99%

“…A Proportional + Integral (PI) controller is introduced to follow the referenced displacement of the cylinder. The detailed explanation of this circuit and its parameter settings can be found in reference [14].…”

Section: Model Of Active Steering Actuation Systemmentioning

confidence: 99%

Study on active wheelset steering from the perspective of wheel wear evolution

Nia

Stichel

et al. 2020

Vehicle System Dynamics

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Active wheelset steering promises an attractive cost-benefit ratio and is highly likely to be implemented in the future. Previous studies investigated the steering effect simply through a wear index like wear number. However, a wear index cannot predict how much the material removal on wheels can be reduced and it is unable to reveal the wear pattern. This paper builds an iterative wear model to predict wheel wear evaluation under the presence of an active steering system. Three active steering schemes are proposed, and they are compared in terms of wheel wear evolution. To quantify the steering effectiveness, two factors are created to respectively evaluate economic impacts and satisfaction of three steering schemes. Finally, a simplified method based on traditional wear indices is compared with the established iterative wear calculation method to examine the applicability and tolerance of the simplified method.

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Fault-tolerant design and evaluation for a railway bogie active steering system

Cited by 11 publications

References 20 publications

An examination of alternative schemes for active and semi-active control of vertical car-body vibration to improve ride comfort

An examination of alternative schemes for active and semi-active control of vertical car-body vibration to improve ride comfort

Cooperation of active steering control of wheelsets with subsystems of an autonomous urban rail vehicle

Study on active wheelset steering from the perspective of wheel wear evolution

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