Forthcoming and Online First Articles

International Journal of Vehicle Safety

International Journal of Vehicle Safety (IJVS)

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International Journal of Vehicle Safety (7 papers in press)

Regular Issues

  • Accident detection system using lasers, multiple sensors and GNSS.   Order a copy of this article
    by Kunal Gagneja 
    Abstract: Lasers combined with GNSS can be used to create a safer design of automobiles. Laser sensors can detect if an accident has taken place. Combination of both the data can be used to inform fire brigade, ambulance, friends and family in case of accident. This technology can save lives and avoidable injuries. It can be new dimension in automobile safety and is comparable to airbags or seatbelts. Multiple GNSS were used in parallel for more accuracy, network coverage and reliability. Combination of satellite phones and sim card was used to ensure that the message reaches even in the presence of network, software and hardware failures. Multiple sensors such as tilt sensor, rotation sensor, gyroscope, and accelerometer and proximity sensor were used to increase the accuracy of observations. A vehicle can become debris and disintegrate. A vehicle can fall into an underground pit and reach a place where no network connectivity is available.
    Keywords: GPS; GLONASS; GALILEO; BeiDou; QZSS; IRNSS.

  • Impact of vehicle related factors on speed selection and accident severity   Order a copy of this article
    by Charles Atombo, Richard Fiifi Turkson, Maxwell Selasi Akple 
    Abstract: We investigate the impact of vehicle related factors on the speed at which an accident occurs and accident severity. In order to achieve the objectives of the study, incident rate ratio effects were considered. The data was collected from the national police Motor Transport and Traffic Department accident database, vehicle owners, garages of auto mechanics and welders in Ghana. The result shows that engine capacity, vehicle type and type of drive had significant impact on accident severity. Additionally, the effect of engine capacity, vehicle age, vehicle type and type of drive on the speed at which an accident occurs was also highly significant. An increase in speed and accident severity is explained primarily by high engine capacity, 4WDs, AWDs and the size of vehicles. Again, increase in vehicle age increases injuries. Therefore, it is important for authorities to strengthen the enforcement of traffic rules to control the drivers aggression speed and reduce accidents.
    Keywords: vehicle factors; speed; accident severity; negative binomial regression; Ghana.

  • Pedestrian airbag folding patterns on airbag deployment and head injuries based on corpuscular particle method   Order a copy of this article
    by Reza Deabae, Javad Marzbanrad 
    Abstract: An earlier study by authors implemented Corpuscular Particle Method (CPM) for simulations of Pedestrian Protection Airbags (PPA). The present study used the CPM to investigate the effect of gas flow on the airbags unfolding procedure. A PPA was designed to cover bottom of windshield and A-pillars where pedestrian head is more likely to hit and stiffness is high. This paper aims to investigate the effect of six folding patterns on PPA deployment behaviour and pedestrian head injuries. For each folding pattern, the headform impact on nine points was simulated. Head acceleration curves, HIC values, PPA pressure and friction curves were exported. Results show that a PPA can reduce pedestrian head injuries by up to 90%. Across the six patterns studied in this research, the folding-rolling as the best pattern generates lowest HIC values, and the rolling-folding and rolling-stochastic as the weakest patterns generate high HIC values as they have higher friction.
    Keywords: pedestrian safety; pedestrian airbag; corpuscular particle method; airbag folding; folding patterns; vehicle-to-pedestrian crash; passive safety; head injury.

  • Evaluation of human seated posture exposure to low-frequency vibrations using a biodynamic model.   Order a copy of this article
    by Mangesh Phate, Shraddha Toney, Vikas Phate 
    Abstract: In this paper, the biodynamic responses exposed to human seated posture were investigated by developing a biodynamic model based on anthropometric data for various Indian male subjects. The four degrees of freedom model for the human seating posture constructed to extract the different biodynamic responses at several low-frequency vibrations. The male subjects were categorized as per age and body weight. A total of nine different categories were identified for the examination. The impact of body mass, age, stiffness, and damping coefficient of the body segments is analysed using MATLAB based code. The biodynamic responses of seated posture have been measured in terms of seat-to-head transmissibility (STHT), driving point impedance (DPMI), and apparent mass (AM). The present work will help predict the biodynamic responses for the seated human body under various vertical excitations. The results of the current work show that the proposed approach was capable of the analysis.
    Keywords: seating posture; human vibration; driving point impedance; seat-to-head transmissibility; apparent mass; anthropometric; biodynamics.

  • Multi-objective optimisation design and fuzzy PID control for racing car variable rear wing system   Order a copy of this article
    by Xinxin Kong, Zhaowen Deng, Sijia Yu, Wei Gao, Baohua Wang 
    Abstract: To improve the aerodynamic characteristics of the rear wing and enhance the handling stability of the racing car, based on the orthogonal experimental design and iSIGHT platform,
    Keywords: variable rear wing; active aerodynamic system; pneumatic characteristics; orthogonal experiments; multi-objective optimisation; fuzzy PID.

  • Driving safety of articulated vehicle on a typical interchange   Order a copy of this article
    by Shuang Luo, Guiyuan Chen, Jin Xu 
    Abstract: Road conditions at interchanges are more complicated than those on basic freeway segments, which results in high probability of risky situations. To simulate the driving safety of an articulated vehicle on a typical interchange, a virtual vehicle model is developed and validated. Driving simulations are conducted on each ramp of the interchange. Influences of longitudinal velocity and road friction are discussed. The results show that the lateral accelerations increase with increased driving speed or decreased curve radius. The articulated vehicle body rolls to the inside of the circular curves and transition curves, and the roll angles increase with the decrease in speed. The low-speed heavy vehicle might roll over to the inside of the large banked curves. The allowed driving speeds are decreased and the critical speeds for sideslip are obtained at low friction conditions. Accident prevention methods are suggested to enhance the driving safety on the interchange.
    Keywords: articulated vehicle; interchange; ramp; driving safety; roll stability; lateral acceleration; road friction; bank angle; five-degrees-of-freedom model; TruckSim.

  • Research on test scenarios of AEB pedestrian system based on knowledge and accident data   Order a copy of this article
    by Yubin Qian, Yuanchao Qiu, Lingyun Xiao*, Wenhao Hu, Honglei Dong 
    Abstract: Because pedestrians are vulnerable road users (VRU), the collision proportion and casualty rate are still high between vehicle and pedestrian, while the current autonomous emergency braking (AEB) system lacks relative overall pedestrian test scenarios. Based on the National Automobile Accident In-depth Investigation System (NAIS) in-depth accident data about the collision accidents between passenger cars and pedestrians in 220 cases, five typical AEB pedestrian system scenarios are obtained by clustering analysis and chi-square test in this paper. Based on the second typical scenario, three more severe test scenarios are obtained by analysing the pedestrian-vehicle collision avoidance model and the actual road traffic situation in China from the perspective of user acceptance. Finally, eight times field operation test shows that the test vehicle is subject to premature braking. This paper provides a reference for establishment and further optimisation of AEB pedestrian test scenario in China.
    Keywords: AEB pedestrian system; accident in-depth investigation; clustering analysis; typical scenarios; user acceptance; field operation test.