International Journal of Automotive Technology
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Modeling and Analyzing Individual Driver’s Steering Behavior Based on Rolling Local-Path Planning Decision
International Journal of Automotive Technology - Tập 24 - Trang 389-400 - 2023
A good understanding driver behavior is significant in the development of chassis control system and autonomous vehicles. To better simulate human drivers, the driver model with the local path rolling planning decision is developed based on model predictive control algorithm. Firstly, three local path planning methods of straight-line driving, circular-arc driving and B-spline curve driving are de......
Vehicles Frontal Impact Analysis Using Computer Simulation and Crash Test
International Journal of Automotive Technology - Tập 20 - Trang 655-661 - 2019
Reconstruction of car accidents is a complex task, with many unknown variables. Among the parameters used to assess the accident severity, in case of a frontal collision between two vehicles, are the change in velocity (delta-v) and the Energy Equivalent Speed (EES). The EES is usually determined based on the deformations. Delta-v can be obtained from the crash pulse recorded with Event Data Recor......
Effect of fuel choice on nanoparticle emission factors in LPG-gasoline bi-fuel vehicles
International Journal of Automotive Technology - Tập 14 - Trang 1-11 - 2013
Nanoparticle and gas-phase emission factors are presented for a liquefied petroleum gas (LPG) passenger vehicle and are compared to gasoline operation. A bi-fuel LPG-gasoline vehicle certified for use on either fuel was used as the test vehicle so that a direct comparison of the emissions could be made based on fuel choice. These values were considered along with previous studies to determine the ......
Development of an electric active rollcontrol (ARC) algorithm for a SUV
International Journal of Automotive Technology - Tập 13 - Trang 247-253 - 2012
Cornering maneuvers with reduced body roll and without loss in comfort are leading requirements for car manufacturers. An electric active roll control (ARC) system controls body roll angle with motor-driven actuators installed in the centers of the front and rear stabilizer bars. A vehicle analysis model developed using a CarSim S/W was validated using vehicle test data. Two ARC algorithms for a s......
Effect of Engine Start and Clutch Slip Losses on the Energy Management Problem of a Hybrid DCT Powertrain
International Journal of Automotive Technology - Tập 21 - Trang 953-969 - 2020
A Dynamic Programming (DP) formulation is developed to find the global optimal solution to the energy management of a parallel Plug-in Hybrid Electric Vehicle (PHEV) equipped with a Dual-Clutch Transmission (DCT). The effects of integrating in the DP formulation the losses accounting for gearshifts and engine starts are studied in terms of the overall fuel consumption; the optimal control solution......
Reduction in the Head Injury Level due to Junior High School Cyclists Wearing Helmets
International Journal of Automotive Technology - Tập 19 - Trang 1023-1032 - 2018
We assessed the effect of wearing a junior-high-school helmet when the frontal or lateral part of a helmet impacted the upper part and lower part of the A-pillar of a vehicle at 35 km/h (212 J). The head injury criterions (HICs) of the headform impactor without a helmet were respectively 4530 and 4937. In the case of the headform impactor wearing a junior-high-school helmet, the helmet reduced the......
License plate extraction method for identification of vehicle violations at a railway level crossing
International Journal of Automotive Technology - Tập 12 - Trang 281-289 - 2011
The primary cause of most railroad accidents is vehicle entry into railway level crossings despite warning messages. To identify drivers who violate railway level crossing regulations, vehicle license plate recognition can be applied at railway level crossings. The purpose of this paper is to present an effective method for extracting the license plate region from vehicle images taken at railway l......
Shape optimization of rubber isolators in automotive cooling modules for the maximization of vibration isolation and fatigue life
International Journal of Automotive Technology - - 2011
Rubber isolators are mounted between a cooling module and a carrier to isolate the car body from vibration due to the rotation of the cooling fan. The isolators should be durable against fatigue loads originating from fan rotation and road disturbance. Thus, the design of rubber isolators is required to maximize both vibration isolation and fatigue life. In this study, the shapes of the rubber iso......
Nonlinear Dynamic Structural Optimization of Electric Vehicles Considering Multiple Safety Tests
International Journal of Automotive Technology - Tập 24 - Trang 573-583 - 2023
A nonlinear dynamic structural optimization method is presented for the design of electric vehicles. A pack crush test and a pole impact test are selected as two different types of battery pack safety assessment. Two finite element models are defined for the pack crush test and the pole impact test, and two optimization problems are formulated for each test, respectively. The battery pack is the s......
Investigating the Effect of Weight Reduction of Rod-End in Drag-Link Product with Finite Element Analysis, Fatigue Test, and a Case Study
International Journal of Automotive Technology - Tập 21 - Trang 513-518 - 2020
The connection surfaces of drag-link must be tough and safe enough to carry transmitted forces that exert on the product in service conditions. Therefore, undulated forming takes place in machining process to stay the rod-ends in the rod. In the rod-end, after forming process, a straight part which remains on the body causes extra cost and weight on the product. In this study, the result of shorte......
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