International Journal of Vehicle Systems Modelling and Testing http://www.inderscience.com/browse/index.php?journalID=169&year=2012&vol=7&issue=1 Inderscience Publishers Ltd en-uk International Journal of Vehicle Systems Modelling and Testing 1745-6436 1745-6444 © 2012 Inderscience Publishers Ltd editor@inderscience.com https://www.inderscience.com/images/files/coverImgs/ijvsmt_scoverijvsmt.jpg http://www.inderscience.com/browse/index.php?journalID=169&year=2012&vol=7&issue=1 http://www.inderscience.com/link.php?id=45309 This paper introduces a methodology for the identification of events or potentially dangerous situations in road traffic by extracting information from the OBD-II interface. The proposed system for identifying hazardous locations includes a GNSS positioning system. As such, with the use of existing navigation systems or with the use of newly installed equipment, the exact geographic location where a given risk occurs will be identified. A smartphone application to extract safety and environmental related information from the OBD-II interface of a car
Johan Wideberg; Pablo Luque; Daniel Mantaras
International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 1 - 11
This paper introduces a methodology for the identification of events or potentially dangerous situations in road traffic by extracting information from the OBD-II interface. The proposed system for identifying hazardous locations includes a GNSS positioning system. As such, with the use of existing navigation systems or with the use of newly installed equipment, the exact geographic location where a given risk occurs will be identified.

]]> 10.1504/IJVSMT.2012.045309 International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 1 - 11 Johan Wideberg; Pablo Luque; Daniel Mantaras ETSI Camino de los Descubrimientos, s/n 41092 Sevilla, Spain. ' Transportation and Infrastructure Engineering, Universidad de Oviedo, Campus Universitario de Gijón, 33203 Gijón, Spain. ' Transportation and Infrastructure Engineering, Universidad de Oviedo, Campus Universitario de Gijón, 33203 Gijón, Spain OBD-II data logging active security road traffic traffic events dangerous situations safety information environmental information hazardous locations GNSS positioning geographic location risk assessment risk locations vehicle safety smartphones cell phones mobile phones. 2012-02-06T23:20:50-05:00 7 1 1 11 2012-02-06T23:20:50-05:00 http://www.inderscience.com/link.php?id=45312 Terrain is the principal source of vertical excitation into the vehicle system, but it is impractical to simulate long distances of every terrain type. A terrain characterisation method is developed for grouping terrain into sets with similar characteristics. Profiles are considered realisations of a stochastic process, described by an autoregressive (AR) model and characterised by the AR coefficients and a single cumulative probability function for the residual process. A set of basis vectors is developed onto which the inverse cumulative probability function (ICPF) of the residual process is mapped. The ICPF is estimated with a small number of basis vectors. The AR and ICPF coefficients of the residual process are jointly dependent on the underlying terrain profiles, so additional basis vectors that map these dependent coefficients onto a reduced set of coefficients are developed. It is shown that six coefficients are required to characterise US highways. Developing compact autoregressive characterisations of terrain topology profiles
Shannon Wagner; John B. Ferris
International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 12 - 25
Terrain is the principal source of vertical excitation into the vehicle system, but it is impractical to simulate long distances of every terrain type. A terrain characterisation method is developed for grouping terrain into sets with similar characteristics. Profiles are considered realisations of a stochastic process, described by an autoregressive (AR) model and characterised by the AR coefficients and a single cumulative probability function for the residual process. A set of basis vectors is developed onto which the inverse cumulative probability function (ICPF) of the residual process is mapped. The ICPF is estimated with a small number of basis vectors. The AR and ICPF coefficients of the residual process are jointly dependent on the underlying terrain profiles, so additional basis vectors that map these dependent coefficients onto a reduced set of coefficients are developed. It is shown that six coefficients are required to characterise US highways.

]]> 10.1504/IJVSMT.2012.045312 International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 12 - 25 Shannon Wagner; John B. Ferris Vehicle Terrain Performance Laboratory, Department of Mechanical Engineering, Virginia Tech, 100S Randolph Hall, MC 0238, Blacksburg, VA 24061, USA. ' Vehicle Terrain Performance Laboratory, Department of Mechanical Engineering, Virginia Tech, 100S Randolph Hall, MC 0238, Blacksburg, VA 24061, USA autoregressive modelling terrain characterisation topology stochastic process singular value decomposition SVD basis vectors residual process probability distribution inverse CPF cumulative probability function ICPF vertical excitation vehicle systems chassis loads vehicle design load prediction roads highways. 2012-02-06T23:20:50-05:00 7 1 12 25 2012-02-06T23:20:50-05:00 http://www.inderscience.com/link.php?id=45310 The main objective of present study is to design a road friendly suspension (which minimises road damage) for a heavy goods vehicle (HGV). Quarter HGV model and half HGV model are used to represent vehicle dynamics. Genetic algorithm has been used for optimisation. It is shown that, for less road damage, soft suspension spring and hard damper are required. For half HGV, the tyre station that has more road damaging potential has been optimised more. Even though the suspension is optimised for a uniform vehicle speed on a given random road profile, the optimised suspension is shown to perform well over a wide frequency range for a sinusoidal road excitation. It is also shown that the optimised passive suspension performs well for hump road input. A comparative study between multi-objective performance index and road damage performance index alone is also presented. Design of 'road friendly' suspensions for quarter and half heavy goods vehicle models by using genetic algorithm and a multi-objective performance index
M.J. Pable; P. Seshu
International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 26 - 53
The main objective of present study is to design a road friendly suspension (which minimises road damage) for a heavy goods vehicle (HGV). Quarter HGV model and half HGV model are used to represent vehicle dynamics. Genetic algorithm has been used for optimisation. It is shown that, for less road damage, soft suspension spring and hard damper are required. For half HGV, the tyre station that has more road damaging potential has been optimised more. Even though the suspension is optimised for a uniform vehicle speed on a given random road profile, the optimised suspension is shown to perform well over a wide frequency range for a sinusoidal road excitation. It is also shown that the optimised passive suspension performs well for hump road input. A comparative study between multi-objective performance index and road damage performance index alone is also presented.

]]> 10.1504/IJVSMT.2012.045310 International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 26 - 53 M.J. Pable; P. Seshu Department of Mechanical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India. ' Department of Mechanical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India road damage fourth power law suspension heavy goods vehicles HGVs multi-objective optimisation genetic algorithms GAs heavy vehicles vehicle suspension vehicle design HGV modelling soft suspension springs hard dampers vehicle speed passive suspension. 2012-02-06T23:20:50-05:00 7 1 26 53 2012-02-06T23:20:50-05:00 http://www.inderscience.com/link.php?id=45308 Computer simulation is being increasingly used for virtual prototyping of ground vehicles ahead of building actual hardware prototypes. This paper describes a methodology to co-simulate, with high fidelity and in one computational framework, all of the main vehicle subsystems for improved engineering design. The approach leverages the capabilities of three software packages (ADAMS, PSAT, FTire) to simulate vehicle kinematics/dynamics, powertrain dynamics, and tyre-terrain contact in one unified environment. As a result, information about forces in vehicle components, driver comfort, maximum cornering speed, fuel efficiency and engine emission details can all be obtained at the same time. This data is relevant when used for comparing competing designs that draw on different values of vehicle parameters (inertia, material, suspension properties, stiffness), powertrain system settings for conventional, hybrid, or fuel cell topologies, and tyre-terrain interface parameters (road profile, tyre pressure, tread). A generic sedan and US army's high mobility multipurpose wheeled vehicle (HMMWV), both with conventional powertrain systems, are used to demonstrate the proposed simulation framework. A co-simulation environment for high-fidelity virtual prototyping of vehicle systems
Makarand Datar; Ilinca Stanciulescu; Dan Negrut
International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 54 - 72
Computer simulation is being increasingly used for virtual prototyping of ground vehicles ahead of building actual hardware prototypes. This paper describes a methodology to co-simulate, with high fidelity and in one computational framework, all of the main vehicle subsystems for improved engineering design. The approach leverages the capabilities of three software packages (ADAMS, PSAT, FTire) to simulate vehicle kinematics/dynamics, powertrain dynamics, and tyre-terrain contact in one unified environment. As a result, information about forces in vehicle components, driver comfort, maximum cornering speed, fuel efficiency and engine emission details can all be obtained at the same time. This data is relevant when used for comparing competing designs that draw on different values of vehicle parameters (inertia, material, suspension properties, stiffness), powertrain system settings for conventional, hybrid, or fuel cell topologies, and tyre-terrain interface parameters (road profile, tyre pressure, tread). A generic sedan and US army's high mobility multipurpose wheeled vehicle (HMMWV), both with conventional powertrain systems, are used to demonstrate the proposed simulation framework.

]]> 10.1504/IJVSMT.2012.045308 International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 54 - 72 Makarand Datar; Ilinca Stanciulescu; Dan Negrut Department of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Ave., 2042, WI 53706, USA. ' Department of Civil and Environmental Engineering, Rice University, 6100 Main Street MS-519, Houston, TX 77005, USA ' Department of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Ave., 2042, WI 53706, USA co-simulation vehicle dynamics powertrain models tyre models modelling simulation virtual prototyping vehicle system prototypes vehicle subsystems vehicle design engineering design vehicle kinematics forces vehicle components driver comfort cornering speed fuel efficiency engine emissions. 2012-02-06T23:20:50-05:00 7 1 54 72 2012-02-06T23:20:50-05:00 http://www.inderscience.com/link.php?id=45311 Finding an appropriate test track, especially suitable for higher velocity impacts, has become increasingly important in today's sled testing environment. This paper describes the design and development of a new sled test track recommended for evaluating the crash safety performance of vehicle components and injury characteristics of impact biomechanics experimental samples. The extensive development programme considered the track foundation stability, rail grinding and welding techniques, track alignment procedures, and track precisions while meeting or surpassing the requirements of ECE R94 and higher velocity impacts. This facility was finally developed to be a continuously welded, high-precision, 82 metre impact test track. In order to examine its experimental precisions, the linearity, parallelism and flatness of this sled track were evaluated by means of precise surveying and mapping instruments, and six dummy 30 mph frontal impact tests were carried out. The experimental results point out the reliability of the precision welded impact sled test track. Development of a precision welded impact sled test track
Haibin Chen; Zhengguo Wang; Zhiyong Yin; Sanhong Li; Xiaoyan Li; Xin Ning
International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 73 - 103
Finding an appropriate test track, especially suitable for higher velocity impacts, has become increasingly important in today's sled testing environment. This paper describes the design and development of a new sled test track recommended for evaluating the crash safety performance of vehicle components and injury characteristics of impact biomechanics experimental samples. The extensive development programme considered the track foundation stability, rail grinding and welding techniques, track alignment procedures, and track precisions while meeting or surpassing the requirements of ECE R94 and higher velocity impacts. This facility was finally developed to be a continuously welded, high-precision, 82 metre impact test track. In order to examine its experimental precisions, the linearity, parallelism and flatness of this sled track were evaluated by means of precise surveying and mapping instruments, and six dummy 30 mph frontal impact tests were carried out. The experimental results point out the reliability of the precision welded impact sled test track.

]]> 10.1504/IJVSMT.2012.045311 International Journal of Vehicle Systems Modelling and Testing, Vol. 7, No. 1 (2012) pp. 73 - 103 Haibin Chen; Zhengguo Wang; Zhiyong Yin; Sanhong Li; Xiaoyan Li; Xin Ning State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China. ' State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China. ' State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China. ' Automobile Safety Laboratory, National Automobile Quality Supervision Test Center (Xiangfan), Xiangfan 441004, China. ' State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China. ' State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China test track track precision rail welding injuries crash safety performance vehicle components injury characteristics impact biomechanics vehicle systems modelling welded impact sled testing high velocity impacts vehicle testing track stability rail grinding track alignment track precision vehicle safety. 2012-02-06T23:20:50-05:00 7 1 73 103 2012-02-06T23:20:50-05:00