Showing papers in "Vehicle System Dynamics in 2021"
TL;DR: In this article, an in-depth analysis of the application of different techniques for vehicle state and tyre force estimation using the same experimental data and vehicle models, except for the torsion.
Abstract: This paper presents an in-depth analysis of the application of different techniques for vehicle state and tyre force estimation using the same experimental data and vehicle models, except for the t...
66 citations
TL;DR: In this article, the authors show the planning of time-optimal trajectories, which allows an autonomous race car to drive at the handling limits, taking into account locally changing road friction values.
Abstract: This paper shows the planning of time-optimal trajectories, which allows an autonomous race car to drive at the handling limits, taking into account locally changing road friction values. For this ...
42 citations
TL;DR: In order to ensure safety and reliability of railway transportation, the interest in monitoring systems is constantly increasing as discussed by the authors, which include sensors and electronic components, which need to be installed in railway transportation.
Abstract: In order to ensure safety and reliability of railway transportation the interest in monitoring systems is constantly increasing. These devices include sensors and electronic components, which need ...
38 citations
TL;DR: In particular locations of the railway track, the excessively polished rail in the inner corner and the large rail cant will lead to an extremely low wheel-rail contact conicity as discussed by the authors, which is undesirable.
Abstract: In particular locations of the railway track, the excessively polished rail in the inner corner and the large rail cant will lead to an extremely low wheel–rail contact conicity. Consequently, the ...
34 citations
TL;DR: In this article, high-order polygonal wear wheels have been detected on metro express train operating on one metro line in China, which cause fatigue failures of steel coil springs in the primary suspension.
Abstract: High-order polygonal wear wheels have been detected on metro express train operating on one metro line in China, which cause fatigue failures of steel coil springs in the primary suspension. A seri...
31 citations
TL;DR: In this paper, active front steering (AFS) can enhance the vehicle yaw stability, but the control of vehicle YAW rate is very challenging due to the unmodelled nonlinearity and uncertainties in v...
Abstract: Active front steering (AFS) can enhance the vehicle yaw stability. However, the control of vehicle yaw rate is very challenging due to (1) the unmodelled nonlinearity and uncertainties in v...
31 citations
TL;DR: In this article, a long-term tracking test was performed on a newly designed high-speed train with the nominal speed of 250 km/h. The wheel roughness and structural vibration were both recorded during two reprofil...
Abstract: A long-term tracking test was performed on a newly designed high-speed train with the nominal speed of 250 km/h. The wheel roughness and structural vibration were both recorded during two re-profil...
29 citations
TL;DR: In this article, a DDES based on the SST κ-ω turbulence model was used to simulate the aerodynamic characteristics of a braking plate, and aerodynamic forces on the plate, the flow structure around the plate an...
Abstract: A DDES based on the SST κ–ω turbulence model was used to simulate the aerodynamic characteristics of a braking plate, and the aerodynamic forces on the plate, the flow structure around the plate an...
29 citations
TL;DR: In this article, an adaptive direct yaw control (DYC) control scheme for electric vehicles with four in-wheel motors is presented to improve the handling and stableness of the vehicles.
Abstract: In order to make full use of the direct yaw control (DYC) in electric vehicles with four in-wheel motors (IWMs), this paper presents an adaptive SMC control scheme to improve the handling and stabi...
26 citations
TL;DR: In this article, advances in the understanding and modelling of wheel-rail creep forces were surveyed, focusing on the tribological aspects of the forces. But the main focus was placed on tribological properties, for which significant progress was made in the past two decades.
Abstract: This paper surveys advances in the understanding and modelling of wheel–rail creep forces. The main focus is placed on tribological aspects, for which significant progress was made in the past two ...
25 citations
TL;DR: In this article, a new type of suspended monorail developed in China with the advantages of both German and Japanese monorails is introduced, and the FE (finite element) model of the bridge is built in Ansys an...
Abstract: This paper introduces a new type of suspended monorail developed in China with the advantages of both German and Japanese monorails. The FE (finite element) model of the bridge is built in Ansys an...
TL;DR: A common workflow for prediction of railway wheel polygonization is presented including assumptions, simulation scheme, and wear models, and some rules for the evolution of railway Wheel OOR (Out-Of-Roundness) evolution are proposed providing innovative perspectives to understand the basic mechanism.
Abstract: This paper reports fundamental research on the general conditions for railway wheel polygonal wear to evolve. A common workflow for prediction of railway wheel polygonization is presented including...
TL;DR: In this paper, a model predictive control strategy for different types of instability modes in tractor-trailer vehicles, such as jack-knifing and snaking, is presented.
Abstract: Different types of instability modes in tractor-trailer vehicles, including jackknifing and snaking, necessitate designing a fast and effective control strategy. In this paper, a model predictive c...
TL;DR: In this paper, a complete track-vehicle-pantograph-catenary (TVPC) coupling dynamics model is presented and several elaborate simulation cases are set to analyse the effect of vehicle body vibration on the pantog...
Abstract: A complete track-vehicle-pantograph-catenary (TVPC) coupling dynamics model is presented and several elaborate simulation cases are set to analyse the effect of vehicle body vibration on the pantog...
TL;DR: In this article, the wheel roughness measured in the field sites indicates that some wheels suffer from discrete wheel irregularities, such as wheel bends, which is a common issue occurring on locomotive wheels.
Abstract: Discrete irregularities are a common issue occurring on locomotive wheels. The wheel roughness measured in the field sites indicates that some wheels suffer from discrete wheel irregularities, such...
TL;DR: The wheel polygonization is the harmonic wave along the wheel circumference, which has been widely reported in high-speed railway vehicles in China in recent years as discussed by the authors, and the polygonisation mechanism has...
Abstract: The wheel polygonisation is the harmonic wave along the wheel circumference, which has been widely reported in high-speed railway vehicles in China in recent years. The polygonization mechanism has...
TL;DR: In this article, a survey of advances in state-of-the-art minimum-time simulation for road vehicles is presented, including both quasi-steady-state and transient vehicle models.
Abstract: The paper begins with a survey of advances in state-of-the-art minimum-time simulation for road vehicles. The techniques covered include both quasi-steady-state and transient vehicle models, which ...
TL;DR: In this article, the authors investigated the effect of hunting stability on railway vehicle dynamic performance and found that hunting stability is a long-standing research topic and has been deeply investigated due to its great influence on railway vehicles dynamic performances.
Abstract: Hunting stability is a long-standing research topic and has been deeply investigated due to its great influence on railway vehicle dynamic performances. Most of the existing hunting monitoring meth...
TL;DR: In this article, the dynamic interactions between the electric drive subsystem and the mechanical subsyste steers were analyzed for railway transportation capabilities towards high power, high speed and heavy axle load.
Abstract: Development of railway transportation capabilities towards high-power, high-speed and heavy axle-load makes the dynamic interactions between the electric drive subsystem and the mechanical subsyste...
TL;DR: In the design of a path tracking controller for autonomous vehicles, mediating the conflicting objectives among path-tracking, vehicle stabilisation, and low computational cost is a challenging task.
Abstract: In the design of a path-tracking controller for autonomous vehicles, mediating the conflicting objectives among path-tracking, vehicle stabilisation, and low computational cost is a challenging iss...
TL;DR: In this paper, the authors present a high-speed train (HST) safety on a HSR bridge with railway irregularity and demonstrate that railway irregularities pose a major threat to the safety of the HST.
Abstract: Rail irregularity presents a major threat to the high-speed train (HST) safety on a high-speed rail (HSR) bridge. Lateral bridge deformation has a significant impact on geometric parameters of the ...
TL;DR: In this article, the road condition is complex and variable during driving; hence, the suspension system cannot easily suppress the vertical vibration of the vehicle, thus, it cannot effectively improve the vehicle dynamic performance.
Abstract: The road condition is complex and variable during driving; hence, the suspension system cannot easily suppress the vertical vibration of the vehicle. To effectively improve the vehicle dynamic perf...
TL;DR: This paper presents the final description for the S&C Benchmark that was launched at the IAVSD 2019 conference held in Gothenburg, Sweden and completed by eighteen participants by the end of 2020 to allow for the replication of the Benchmark exercise after publication.
Abstract: This paper presents the final description for the S&C Benchmark that was launched at the IAVSD 2019 conference held in Gothenburg, Sweden and completed by eighteen participants by the end of 2020. The purpose of this paper is to allow for the replication of the Benchmark exercise after publication for those who wish to do so in the future, and it includes a link to the repository containing all necessary input data. The original task description, including a description of the Benchmark submission, is presented in full. The results from the Benchmark are available in [Bezin Y, Palsson BA, Kik W, et al. Multibody simulation Benchmark for dynamic vehicle-track interaction in switches and crossings: results and method statements. Submitted to VSD, 2021].
TL;DR: In this paper, a model-based approach to develop a wheel slip regulation scheme for Antilock Braking System (ABS) in Heavy Commercial Road Vehicles (HCRVs) is presented.
Abstract: This work provides a model-based approach to develop a wheel slip regulation scheme for Antilock Braking System (ABS) in Heavy Commercial Road Vehicles (HCRVs). Physical constraints of the actuator...
TL;DR: In this paper, the understanding of tyres is of fundamental importance to govern the overall vehicle dynamics, starting from the earliest phases of design of the vehicle and its control systems, and it is shown that a properly charac...
Abstract: Starting from the earliest phases of design of the vehicle and its control systems, the understanding of tyres is of fundamental importance to govern the overall vehicle dynamics. A properly charac...
TL;DR: In this article, a method to solve minimum-lap-time problems using quasi-steady-state models and free (i.e., not predetermined) trajectory on two-dimensional tracks has been proposed.
Abstract: A method to solve minimum-lap-time problems using quasi-steady-state models and free (ie not predetermined) trajectory on two-dimensional tracks has been recently proposed This work describes th
TL;DR: When high creep values occur on a braked/trailing wheelset running on a contaminated track, changes in the friction conditions take place as mentioned in this paper, and the work of the friction forces gradually removes...
Abstract: When high creep values occur on a braked/trailing wheelset running on a contaminated track, changes in the friction conditions take place. In fact, the work of the friction forces gradually removes...
TL;DR: In this paper, the aerodynamic forces on a stationary train and moving train as well as the flow fields at the bottom of the trains were compared and analyzed using a numerical algorithm.
Abstract: In this study, the aerodynamic forces on a stationary train and moving train as well as the flow fields at the bottom of the trains were compared and analysed. In addition, the numerical algorithm ...
TL;DR: Parallel hydraulic hybrid vehicles (PHHVs) integrate conventional engines with a hydraulic pump/motor (HPM) to drive the vehicle independently or in combination as discussed by the authors, to improve the comfortability and reliability of the vehicle.
Abstract: Parallel hydraulic hybrid vehicles (PHHVs) integrate conventional engines with a hydraulic pump/motor (HPM) to drive the vehicle independently or in combination. To improve the comfortability and d...
TL;DR: In this article, an integrated active steering system was proposed to solve the contradiction between curving performance and running stability of traditional bogies. But, active steering technology is an effective method to solve this problem.
Abstract: Active steering technology is an effective method to solve the contradiction between curving performance and running stability of traditional bogie. In this study, an integrated active steering dev...