International Journal of Automotive Technology
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Numerical Optimization of the Defrosting Performance of the Vehicle Based on Discrete Adjoint Approach
International Journal of Automotive Technology - Tập 22 - Trang 109-118 - 2021
In this study, the discrete adjoint approach with the grid deformation technique based on radial basis function was presented to solve the tough problem that the complex shape of the defrosting duct is very difficult to be optimized with multiple parameters in the improvement of the defrosting performance of vehicle. Firstly, the defrosting performance of a light truck was analyzed. Then the discr...... hiện toàn bộ
Effective method for knock signal denoising in internal combustion engine
International Journal of Automotive Technology - Tập 18 - Trang 769-777 - 2017
Uncontrolled expansion of combustion wave in spark ignited internal combustion engine causes knock effect which seriously degrades efficiency and lifetime of the engine. Thus, accurate knock detection and control are essential for obtaining a desired performance from the engine. Usually, knock sensor is used to detect this phenomenon but it has limited accuracy especially at engine high-speed rota...... hiện toàn bộ
Similarity of the measured NIC of a BioRID II dummy in car-to-car rear end impact and sled experiments
International Journal of Automotive Technology - Tập 19 - Trang 77-83 - 2017
The Japan New Car Assessment Program (J-NCAP) evaluates the performance of cars in terms of protection against whiplash injuries in rear-end collisions. In the test protocol, a simplified triangular acceleration is applied to the sled. This study clarifies whether biofidelic rear-impact dummy II (BioRID II) measurements obtained for simplified triangular acceleration reflect car-to-car rear-end im...... hiện toàn bộ
Fuel economy comparison of conventional drive trains series and parallel hybrid electric step vans
International Journal of Automotive Technology - Tập 10 - Trang 235-240 - 2009
A hybrid electric vehicle (HEV) is a vehicle that combines a conventional propulsion system with an on-board rechargeable energy storage system to achieve better fuel economy than a conventional vehicle HEVs do not have limited ranges like battery electric vehicles, which use batteries charged by an external source. The different propulsion power systems may have common subsystems or components. T...... hiện toàn bộ
The Effect of Pore Structure on Thermal Characteristics of a Cordierite Diesel Particulate Filter for Heavy Duty Diesel Vehicle
International Journal of Automotive Technology - Tập 22 - Trang 243-251 - 2021
As emissions regulations are tightened, various engine and emission reduction improvements have been applied. The reduction of particulate matter (PM), a major diesel engine emission, relies solely on after-treatment in the diesel particulate filter (DPF). It is not possible to satisfy current exhaust regulations without a DPF installed downstream of a diesel engine. Therefore, in the design of DP...... hiện toàn bộ
Objective evaluation of the sound quality of the warning sound of electric vehicles with a consideration of the masking effect: Annoyance and detectability
International Journal of Automotive Technology - Tập 18 - Trang 699-705 - 2017
This study developed a method to evaluate the sound quality of the warning sound masked by background noise considering the masking effect. The warning sound of an electric vehicle is required by law for the safety of pedestrians. Therefore, the warning sound becomes an additional noise pollution source if it is designed as an annoyance. On the other hand, if the sound is designed with a low sound...... hiện toàn bộ
Dynamic programming-based method for extraction of license plate numbers of speeding vehicles on the highway
International Journal of Automotive Technology - Tập 10 - Trang 205-210 - 2009
In the last decade, vehicle identification systems have become a central element in many applications involving traffic law enforcement and security enhancement, such as locating stolen cars, automatic toll management, and access control to secure areas. As a method of vehicle identification, license plate recognition (LPR) systems play an important role and a number of such techniques have been p...... hiện toàn bộ
Analysis of neck fractures from frontal collisions at low speeds
International Journal of Automotive Technology - Tập 11 - Trang 441-445 - 2010
Neck fracture is a major cause of death in traffic accidents. This pattern of injury normally occurs in a frontal collision or overturn of a vehicle. This study investigates the case of a neck fracture from a low-speed collision. In the examined case, the passenger in the front seat of the car fractured his neck and died. He did not have his seatbelt on when the vehicle slipped on a frozen road su...... hiện toàn bộ
Novel Self-Clamping Clutch Mechanism for Micro Electric Vehicle Transmission
International Journal of Automotive Technology - Tập 20 - Trang 147-156 - 2019
This paper deals with a novel clutch mechanism for transmission applications, which aims at easy application of the transmission as the micro-electric vehicle models expand in variety. The new mechanism actuated by the torque and rotational inertia of the traction motor instead of the conventional hydraulic or electronic actuator and features a simple structure compared to the conventional mechani...... hiện toàn bộ
Effect of Stabilizing Strategy on Head Kinematics of Occupant
International Journal of Automotive Technology - Tập 23 - Trang 179-192 - 2022
A total of 96 tests were conducted using a driving simulator with six male volunteers. The driving simulator produced a series of 4.8-second cycle motions that combines roll (Rx) and sway (Dy). The cycle motions were produced in four levels of intensity by linearly adjusting the amplitude of roll and sway (from 0.15 to 0.40 g). Meanwhile, the subjects remained either reactive or proactive. An IMU ...... hiện toàn bộ
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