Showing papers on "Vehicle engineering published in 2009"
Book•
24 Dec 2009
TL;DR: In this article, the principles of off-road vehicle and terrain engineering are discussed, as well as the latest developments in the field, including the latest computer-aided methods employed in the development of new generation of high-mobility offroad vehicles in Europe, North America and Asia.
Abstract: This book will be of great interest to any professional engineer or automotive engineering student working on off-road vehicles. Reflecting the increase in off-road vehicle production and development - recreational, agricultural, construction, military - this book equips readers with all of the necessary knowledge to successfully design and model off-road vehicle systems, and provides a comprehensive introduction to terramechanics, the mechanics of vehicle/terrain interaction. This is the only book to cover the principles of off-road vehicle and terrain engineering, a rapidly developing sector that includes SUVs, tractors and agricultural vehicles, military vehicles, and construction equipment. It covers the latest developments in the field, including the latest computer-aided methods employed in the development of new generation of high-mobility off-road vehicles in Europe, North America and Asia. This work is ideal for professional reference and course reference by students, with new detailed worked design examples, case studies, and accompanying problems and solutions.
186 citations
01 Jan 2009
TL;DR: In this article, the influence of crosswind on a high-speed rail vehicle negotiating a curve is investigated, and the vehicle response is studied for different gusts, and variations of some vehicle parameters are performed.
Abstract: Rail vehicles in everyday operation experience large lateral influences from curves and track imperfections, yielding large suspension deflections and displacements of the carbody relative to the track. Aerodynamic loads caused by crosswind may deteriorate the conditions that can result in vehicle overturning. This study investigates the influence of crosswind on a high-speed rail vehicle negotiating a curve. A multi-body simulation model of a high-speed rail vehicle is subjected to unsteady aerodynamic loads. The vehicle response is studied for different gusts, and variations of some vehicle parameters are performed.
32 citations
01 Jan 2009
TL;DR: In this paper, a controlled water slam testing of composite hull panels was conducted to study the effect of hydroelasticity for three panels with different stiffnesses, and the experimental methodology successfully ch...
Abstract: Controlled water slam testing of composite hull panels was conducted to study the effect of hydroelasticity for three panels with different stiffnesses. The experimental methodology successfully ch ...
23 citations
01 Mar 2009
TL;DR: A study assessing vertical track geometry quality based on simulations of dynamic track-vehicle interaction is presented in this paper, where the dynamic model is composed of track, vehicle, and wheel-wheel interaction.
Abstract: A study assessing vertical track geometry quality based on simulations of dynamic track-vehicle interaction is presented in this article. The dynamic model is composed of track, vehicle, and wheel- ...
23 citations
01 Jan 2009
TL;DR: In this article, the authors present a survey of the state of the art in the field of bioinformatics and computer science, focusing on the following topics, i.e.,
Abstract: ............................................................................................................................................ i Preface and acknowledgements ................................................................................................... iii Content ............................................................................................................................................. v
23 citations
01 Jan 2009
TL;DR: Track irregularities for high speed trains were evaluated in this paper, and their correlation with vehicle response was found to be positively correlated with the response of the vehicle to the track irregularities.
Abstract: Track Irregularities for High-Speed Trains : Evaluation of their correlation with vehicle response
18 citations
01 Jan 2009
TL;DR: In this paper, the driver has to compensate continuously for small directional deviations from the desired course due to disturbances such as crosswinds, road irregularities, and road irregularities an irregularity.
Abstract: When driving a vehicle on the road, the driver has to compensate continuously for small directional deviations from the desired course due to disturbances such as crosswinds, road irregularities an ...
17 citations
01 Jan 2009
15 citations
Journal Article•
TL;DR: In this article, a control algorithm using the extended Kalman filtration (EKF) to estimate the vehicle state was suggested, which can estimate the yaw rate, the longitudinal velocity, and the ride slip angle of the mass center.
Abstract: A control algorithm using the extended Kalman filtration(EKF) to estimate the vehicle state was suggested.The algorithm based on a 3-DOF nonlinear vehicle model was applied to estimate the yaw rate,the longitudinal velocity,and the ride slip angle of the mass center in the vehicle driving.The estimated vehicle state parameters were compared with the results from the vehicle field test.The comparison demonstrated that the EKF based algorithm can estimate quite accurately the above-mentioned vehicle driving state parameters.
15 citations
05 Jan 2009
13 citations
19 May 2009
TL;DR: In this article, experimental procedures to determine the sound transmission through automotive turbo-charger compressors are described, and an overview of a unique turbocharger testing facility is provided.
Abstract: In this paper experimental procedures to determine the sound transmission through automotive turbo-charger compressors are described An overview of a unique turbocharger testing facility establish
05 Jan 2009
01 Jan 2009
TL;DR: Crosswind stability of rail vehicles has been a research area for several decades,mainly motivated by vehicle overturning accidents and higher speeds, but in recenttimes also by issues of lower ene...
Abstract: Crosswind stability of rail vehicles has been a research area for several decades,mainly motivated by vehicle overturning accidents and higher speeds, but in recenttimes also by issues of lower ene ...
01 Apr 2009
TL;DR: This work examines the possibilities to use already on vehicle sensors for road roughness estimation and investigates what requirements existing signals must fulfill to ensure reliable estimates.
Abstract: Road conditions affect fuel efficiency and vehicle fatigue when driving heavy trucks. Information about traveled road conditions enable optimization of chassis configuration when driving, and logging of vehicle stress. Previous work on this topic focus mainly on tuning of active suspension parameters in the car industry. One conceivable application for heavy trucks is implementation of active chassis level control based on road conditions, with possible improvements in driving economy as result. Another is logging of usage conditions which helps explain vehicle faults caused by abnormal wear. This work examines the possibilities to use already on vehicle sensors for road roughness estimation. It also investigates what requirements existing signals must fulfill to ensure reliable estimates. Two methods for road roughness estimation are proposed using rear axle level sensor and a simple linear suspension system model.
01 Jan 2009
TL;DR: In this article, active secondary suspension in trains has been studied for a number of years, showing promising improvements in ride comfort. But due to relatively high implementation and maintenance costs, a...
Abstract: Active secondary suspension in trains has been studied for a number of years, showing promising improvements in ride comfort. However, due to relatively high implementation and maintenance costs, a ...
01 Jan 2009
TL;DR: In this paper, the authors focused on the localized problem of hydroelasticity in marine panel-water impacts with an overall aim to increase the capability of high-speed craft by application of m...
Abstract: The work in this thesis is concerned with the localized problem of hydroelasticity in marine panel-water impacts with an overall aim to increase the efficiency of high-speed craft by application of m ...
TL;DR: In aeronautical applications wind tunnels are often not capable of producing high Reynolds numbers which are achieved at free flight conditions as mentioned in this paper, so CFD methods are often used as a tool to estima...
Abstract: In aeronautical applications wind tunnels are often not capable of producing high Reynolds numbers which are achieved at free flight conditions. Today CFD methods are often used as a tool to estima ...
01 Jan 2009
TL;DR: In this article, the trend of crosswind from various origins such as weather, topography of the ambient environment (land, forest, tunnels, high bushes...) or surrounding traffic is discussed.
Abstract: Ground vehicles are subjected to crosswind from various origins such as weather, topography of the ambient environment (land, forest, tunnels, high bushes...) or surrounding traffic. The trend of l ...
TL;DR: In this article, model predictive control (MPC) is applied for controlling an over-actuated vehicle, where the control problem is associated with the distribution of the tyre forces to ensure vehicle stability.
Abstract: In this paper, model predictive control (MPC) is applied for controlling an over-actuated vehicle. The control problem is associated with the distribution of the tyre forces to ensure vehicle stability. The use of MPC is shown to be a suitable method if the vehicle's future desired trajectory is known. Simulation studies conducted show that access to information in advance, even if such information is restricted to only a few seconds, significantly contributes to maintaining vehicle stability. Furthermore, a longer prediction horizon results in earlier actions and stabilises the vehicle even better.
01 Jan 2009
TL;DR: In this article, the authors deal with the control of individual metering systems that could be used for reducing metering losses by enabling recupling of the metering system's control.
Abstract: This paper deals with the control of individual metering systems. This paper deals with the control of an individual metering system that could be used for reducing metering losses by enabling recu ...
01 Jan 2009
TL;DR: In this paper, the authors proposed a composite structure for reducing the weight of an airliner by reducing the process complexity and the high material cost, however, the low weight often comes with a significant increase in cost.
Abstract: Composite structures can lower the weight of an airliner significantly. Due to the higher process complexity and the high material cost, however, the low weight often comes with a significant incre ...
01 Mar 2009
TL;DR: EAST-ADL2 as discussed by the authors is an architecture description language, which is based on Autosar concepts and extends the initiative towards a system engineering approach for automotive embedded software, but it does not specify the software components at implementation level.
Abstract: The future de-facto standard for automotive Electric/Electronic (E/E) software architectures of the AUTomotive Open System ARchitecture (Autosar) initiative is gaining momentum in the automotive industry. This is manifested by the fact that vehicle manufacturers and Tier-1 suppliers are committed to this standard. The initiative’s main focus is on software (SW) components at implementation level. EAST-ADL2 is an architecture description language, which is based on Autosar concepts and extends the initiative towards a system engineering approach for automotive embedded software.
06 Oct 2009
01 Jan 2009
TL;DR: In this thesis, optimization is used to improve the performance of aircraft and is focused on operating current generation aircraft more efficiently rather than designing new aircraft.
Abstract: In this thesis, optimization is used to improve the performance of aircraft. The focus is on operating current generation aircraft more efficiently rather than designing new aircraft. Drag minimiza ...
Journal Article•
TL;DR: In this article, a graphic method on automatic transmission shift schedules was presented with the combination of vehicle driven force curves and engine characteristic curves in one graphic, the vehicle and engine status before and after gear shift can be compared and analyzed, the optimistic vehicle dynamic and economic shift schedule can be deducted easily and efficiently, the influence of shift schedules in different modes on vehicle performance can also be analyzed correspondently.
Abstract: A graphic method on automatic transmission shift schedules was presentedWith the combination of vehicle driven force curves and engine characteristic curves in one graphic,the vehicle and engine status before and after gear shift can be compared and analyzed,the optimistic vehicle dynamic and economic shift schedule can be deducted easily and efficiently,the influence of shift schedules in different modes on vehicle performance can also be analyzed correspondentlyThe problem,which was difficult to get precise automatic transmission shift schedule through analysis,was solved by this researchThis method can provide significant help on the improvement of automatic transmission performance and development
Journal Article•
TL;DR: In this article, a multi-body dynamic model was constructed for the rider-motorcyle system by means of the software ADAMS to study the handling stability of the motorcycle.
Abstract: A multi-body dynamic model was constructed for the rider-motorcyele system by means of the software ADAMS to study the handling stability of the motorcycle.A rider steering and attitude controller was designed using the software MATLAB.Based on the ADAMS-MATLAB co-simulation,the single-lane change and the steady-state circular driving of the rider-motorcycle system was analyzed.The simulation results indicated that the designed rider steering and attitude controller represents the rider behaviors well and the motorcycle follows the target track precisely.The co-simulation of the rider-motorcycle system can be used to study the handling stability of the motorcycle.
01 Jan 2009
TL;DR: In this article, a combination of increased vehicle speeds and non-improved railway tracks may have a negative impact on passenger comfort and active technology can replace the conventional passive solution of the sec...
Abstract: A combination of increased vehicle speeds and non-improved railway tracks may have a negative impact on passenger comfort. Active technology can replace the conventional passive solution of the sec ...
01 Jan 2009
TL;DR: In this article, the authors investigated how tyres with different road grip affect the stability of passenger cars equipped with Electronic Stability Control (ESC) systems during winter road conditions, and they found that ESS systems can improve the stability during road conditions.
Abstract: In this study we have investigated how tyres with different road grip affect the stability of passenger cars equipped with Electronic Stability Control (ESC) systems during winter road conditions. ...
01 Jan 2009
TL;DR: The automobile has become an integral part of modern industrializedsociety as discussed by the authors and consumer demands, regulatory legislation, and the corporate need to generate a profit, have been the main drivers of the automobile's development.
Abstract: Over the past century, the automobile has become an integral part of modern industrializedsociety. Consumer demands, regulatory legislation, and the corporate need togenerate a profit, have been th ...