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ARTICLE
PERFORMANCE PREDICTION OF ENGINE COOLANT CIRCULATION TYPE MELTING SYSTEM OF FROZEN UREA: EFFECT OF HEATING COIL DESIGN
Designing a urea heating coil by repeating a urea melting experiment is a very time-consuming and cost-taking task. In this paper, insight on how to design the heating coil of engine coolant type urea tank is provided from numerical analysis. The numerical analysis conditions us...
ARTICLE
MULTI-STAGE IGNITION SYSTEM WITH SELF-ADAPTIVE CONTROL FOR LEAN COMBUSTION IN SI NATURAL GAS ENGINE
Due to the wide application of SI engines, there is an urgent need to improve their thermal efficiency. Lean combustion technology is an advanced technology that effectively improves the efficiency of ignition engines. However, the change of the combustion cycle deteriorates wit...
ARTICLE
NUMERICAL STUDY ON THE DESIGN OF AIR COOLED BATTERY THERMAL MANAGEMENT SYSTEM FOR ECO-FRIENDLY VEHICLES
Electric vehicles are a clean energy transportation option recently emerged as an alternative to the conventional engine powered vehicles. These vehicles are using Lithium ion battery as energy storage for their propulsion because of its energy density. Due to the chemical react...
ARTICLE
PEDESTRIAN COLLISION AVOIDANCE USING DEEP REINFORCEMENT LEARNING
The use of intelligent systems to prevent accidents and safety enhancement in vehicles is becoming a requirement. Besides, the development of autonomous cars is progressing every day. One of the main challenges in transportation is the high mortality rate of vehicles colliding w...
ARTICLE
ANALYSIS AND OPTIMIZATION OF BEAM OPENING ANGLE OF TORSION BEAM SUSPENSION TO IMPROVE FREQUENCY RESPONSE CHARACTERISTICS OF WHOLE VEHICLE
Taking torsion beam suspension as the research object, the kinematics characteristics of the suspension are analyzed, and the expressions of the wheel alignment parameters are established. It also explains why the changes in the suspension’s roll stiffness and the load transfer...
ARTICLE
SPRAY DEVELOPMENT PROCESS UTILIZING A MULTI-HOLE GDI INJECTOR WITH DIFFERENT SPRAY HOLE LENGTHS AND STEP HOLE DIAMETERS
This study focused on the spray development process via spray visualization experiment using different nozzle shape. Specifically, the spray penetration and initial spray angle were determined by high-speed camera and Long distance microscope (LDM) visualization system. Addition...
ARTICLE
HIGH-LOAD EXPANSION BY VARYING EFFECTIVE COMPRESSION RATIO USING VARIABLE VALVE DURATION SYSTEM UNDER DUAL-FUEL PREMIXED COMPRESSION IGNITION
In this study, a high-load expansion strategy was investigated by varying the effective compression ratio (CR) using the variable valve duration (VVD) method during combustion in a gasoline/diesel dual-fuel premixed compression ignition engine. The effective CR was varied from 1...
ARTICLE
IMPACT OVERLAPS ON OCCUPANT LOWER LIMB INJURIES UNDER CAR FRONTAL CRASH
The lower extremity is one of the most difficult parts to protect in a car collision. The purpose of this paper is to determine the injury characteristics of the lower extremities under frontal collisions with different overlaps. The test device for human occupant restraint (THO...
ARTICLE
REGENERATIVE BRAKING CONTROL STRATEGIES WITH FIXED RATIO AND VARIABLE RATIO BRAKING FORCES OPTIMIZATION DISTRIBUTION FOR ELECTRIC VEHICLES DURING DOWNHILL PROCESS
The regenerative braking system can recover the braking energy to extend the mileage of electric vehicles, however, recovering more energy and ensuring the braking stability are conflicted each other. In addition, during the downhill process, the road slope angle has a great inf...
ARTICLE
VALVE OPTIMIZATION WITH SYSTEM-FLUID-MAGNETIC CO-SIMULATION AND DESIGN OF EXPERIMENTS
This paper presents the design optimization results for the anchor shape of the solenoid part of a flow-rate control valve by executing the design of experiments (DOE) for developing a quieter high-pressure pump. The impact of the noise level increases with an increase to the va...
ARTICLE
MONOCULAR VISION SLAM RESEARCH FOR PARKING ENVIRONMENT WITH LOW LIGHT
The low light condition poses a challenge when utilizing direct monocular visual simultaneous localization and mapping (vSLAM) in a parking environment. To make the monocular vSLAM perform well under parking environments with low light or illumination alternations, in this paper...
ARTICLE
SPRAY COLLAPSE IN A SIDE-MOUNT GASOLINE DIRECT INJECTION INJECTOR WITH VARIOUS INJECTION CONDITIONS AND INJECTOR NOZZLE CONFIGURATIONS
In this study, the spray collapse in a non-flash boiling condition was studied. Spray collapse can occur in a sidemount gasoline direct injection (GDI) injector because of its narrow hole distance. To investigate the spray collapse, a spray visualization system was constructed w...
ARTICLE
INFLUENCING FACTORS OF ELECTRIC VEHICLE ECONOMY BASED ON CONTINUOUSLY VARIABLE TRANSMISSION
The wide speed ratio range and continuously variable ratio characteristics of continuously variable transmission (CVT) can effectively improve the energy economy of electric vehicle (EV). However, the relatively low mechanical efficiency and high hydraulic loss limit its applica...
ARTICLE
SIDESLIP ANGLE CONTROL OF ELECTRONIC-FOUR-WHEEL DRIVE VEHICLE USING BACKSTEPPING CONTROLLER
This paper presents our investigation into creating a sideslip angle control system for an electronic-four-wheel drive (e-4WD) vehicle. In keeping with the growing demand for fun-to-drive vehicles, our e-4WD vehicle, which is equipped with in-wheel motor systems (IWMs) on the fr...
ARTICLE
RECENT DEVELOPMENTS AND TRENDS IN FLEXIBLE FORMING TECHNOLOGY
Flexible metal forming processes are novel ways to meet the growing needs for maintaining economic feasibility in mass production and customization. The flexible forming processes inherently have more process parameters to control than conventional processes, and thus they may b...
ARTICLE
ROAD TORQUE MODELING FOR ELECTRIC POWER STEERING SYSTEMS
The rack force transmitted to a rack bar through a tie-rod is regarded as a major external force to the electric power steering (EPS) system. However, since road torque generated between the tire and the road surface is transmitted to the rack bar under the influence of road whe...
ARTICLE
EFFECT OF HYDROCARBON CONCENTRATION ON PARTICULATE DEPOSITION AND MICROSTRUCTURE OF THE DEPOSIT IN EXHAUST GAS RECIRCULATION COOLER
The effect of hydrocarbon (HC) concentration on particulate deposition and the microstructure of the deposit in exhaust gas recirculation (EGR) cooler was investigated. The EGR cooler inlet gas temperature was 300 °C and the coolant temperature was 85 °C throughout the test, an...
ARTICLE
DEVELOPMENT OF A NARROW PASSAGE DRIVING SYSTEM FOR SEMI-TRAILER TRUCK BY USING MPC
The tractor and trailer units of the semi-trailer truck are connected through the hitch point. The articulation angle is generated when lateral force is applied to the vehicle and it causes the tractor and trailer units to move in different trajectories. When driving on narrow r...
ARTICLE
CONTROL STRATEGY BASED ON FLOW CONSERVATION EQUATION FOR HIGH-PRESSURE COMMON RAIL SYSTEM
As the most advanced fuel injection system, the common rail system can achieve the flexible control of injection pressure, injection timing and injection rate. Thus, the pressure control strategy of high-pressure common rail system (HPCRS) will be critical for the performance of...
ARTICLE
REGENERATIVE BRAKING CONTROL STRATEGY BASED ON MULTI-SOURCE INFORMATION FUSION UNDER ENVIRONMENT PERCEPTION
In this paper, regenerative braking control of electric vehicles is investigated based on multi-source information such as image recognition, GPS and vehicle running parameters. Firstly, the fast normalized cross-correlation (FNCC) algorithm is applied to identify the speed limi...
ARTICLE
SIMULATOR STUDY ON THE RESPONSE TIME AND DEFENSIVE BEHAVIOR OF DRIVERS IN A CUT-IN SITUATION
The purpose of this study was to record and analyze various reaction times and behaviors of drivers in response to cut-in situations in a driving simulator. A total of 105 male and female volunteers between the age of 20 and 49 participated in an experiment in a driving simulato...
ARTICLE
PERSONALIZED SPEED PLANNING ALGORITHM USING A STATISTICAL DRIVER MODEL IN CAR-FOLLOWING SITUATIONS
Advanced driving assistance systems (ADAS) such as adaptive cruise control (ACC), traffic jam assistance, and collision warning have been developed to enhance driving comfort and reduce the driving burden in car-following situations. Although these systems provide automated driv...
ARTICLE
DISTURBANCE OBSERVER BASED ACTIVE INDEPENDENT FRONT STEERING CONTROL FOR IMPROVING VEHICLE YAW STABILITY AND TIRE UTILIZATION
In the currently used steering systems, the front tires are steered dependently during turning maneuvers. During these maneuvers, the weight transfer causes the inner tire to have less vertical force compared to the outer tire. Therefore, it generates less lateral tire force and...
ARTICLE
COMPUTATIONAL STUDY ON THE FRICTIONAL POWER LOSS REDUCTION OF PISTON RING WITH LASER SURFACE TEXTURING ON THE CYLINDER LINER
Hydrodynamic lubrication is simulated under the contact conditions that the direction of contact velocity reverses with a sudden high applied load in the contact of piston top ring and cylinder liner. Hydrodynamic lubrication film formation and pressure between piston ring and c...
ARTICLE
COMPREHENSIVE EFFECTS ON PERFORMANCE AND EMISSION OF GDI GASOLINE ENGINE WITH ELECTRIC SUPERCHARGER AND EGR
In this paper, an electric supercharger was installed on a GDI gasoline engine with LP EGR system. The engine performance and emission changes were experimentally investigated with electric supercharger and EGR. The experimental result shows that EGR has effects on energy saving...
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Articles
 Engine and Emissions, Fuels and Lubricants
583 PERFORMANCE PREDICTION OF ENGINE COOLANT CIRCULATION TYPE MELTING SYSTEM OF FROZEN UREA: EFFECT OF HEATING COIL DESIGN
Seokhoon Jeong, Hyunjun Kim, Ohyun Kwon, Eunyong Park, Jeongho Kang
Int J Automot Technol. 2022;23(3):583-589.    DOI: https://doi.org/10.1007/s12239-022-0053-7
      
 Electric, Fuel Cell, and Hybrid Vehicle, Electrical and Electronics
591 MULTI-STAGE IGNITION SYSTEM WITH SELF-ADAPTIVE CONTROL FOR LEAN COMBUSTION IN SI NATURAL GAS ENGINE
Hui Song Tang , Chang Shui Wu
Int J Automot Technol. 2022;23(3):591-601.    DOI: https://doi.org/10.1007/s12239-022-0054-6
      
  Electric, Fuel Cell, and Hybrid Vehicle
603 NUMERICAL STUDY ON THE DESIGN OF AIR COOLED BATTERY THERMAL MANAGEMENT SYSTEM FOR ECO-FRIENDLY VEHICLES
Alemayehu Wakjira Huluka , Chul-Ho Kim
Int J Automot Technol. 2022;23(3):603-612.    DOI: https://doi.org/10.1007/s12239-022-0055-5
      
  Body and Safety, Manufacturing, Materials and Recycling
613 PEDESTRIAN COLLISION AVOIDANCE USING DEEP REINFORCEMENT LEARNING
Alireza Rafiei , Amirhossein Oliaei Fasakhodi , Farshid Hajati
Int J Automot Technol. 2022;23(3):613-622.    DOI: https://doi.org/10.1007/s12239-022-0056-4
      
  Connected Automated Vehicles and ITS, Electric, Fuel Cell, and Hybrid Vehicle, Vehicle Dynamics and Control
623 ANALYSIS AND OPTIMIZATION OF BEAM OPENING ANGLE OF TORSION BEAM SUSPENSION TO IMPROVE FREQUENCY RESPONSE CHARACTERISTICS OF WHOLE VEHICLE
Jin Gao , Peifeng Han
Int J Automot Technol. 2022;23(3):623-640.    DOI: https://doi.org/10.1007/s12239-022-0057-3
      
 Engine and Emissions, Fuels and Lubricants
641 SPRAY DEVELOPMENT PROCESS UTILIZING A MULTI-HOLE GDI INJECTOR WITH DIFFERENT SPRAY HOLE LENGTHS AND STEP HOLE DIAMETERS
Jeonghwan Park, Sungwook Park
Int J Automot Technol. 2022;23(3):641-648.    DOI: https://doi.org/10.1007/s12239-022-0058-2
      
  Engine and Emissions, Fuels and Lubricants
649 HIGH-LOAD EXPANSION BY VARYING EFFECTIVE COMPRESSION RATIO USING VARIABLE VALVE DURATION SYSTEM UNDER DUAL-FUEL PREMIXED COMPRESSION IGNITION
Kihong Kim, Donghyun Lim, Hyungjin Shin, Sanghyun Chu, Jeongwoo Lee, Kyoungdoug Min
Int J Automot Technol. 2022;23(3):649-656.    DOI: https://doi.org/10.1007/s12239-022-0059-1
      
 Body and Safety, Noise, Vibration and Harshness
657 IMPACT OVERLAPS ON OCCUPANT LOWER LIMB INJURIES UNDER CAR FRONTAL CRASH
Sen Xiao , Xuewei Shi , Xiuxiu Sun , Hao Zhang , Weijie Ma , Zhixin Liu
Int J Automot Technol. 2022;23(3):657-663.    DOI: https://doi.org/10.1007/s12239-022-0060-8
      
 Connected Automated Vehicles and ITS
665 REGENERATIVE BRAKING CONTROL STRATEGIES WITH FIXED RATIO AND VARIABLE RATIO BRAKING FORCES OPTIMIZATION DISTRIBUTION FOR ELECTRIC VEHICLES DURING DOWNHILL PROCESS
Li Xiangjie , Zhang Xiangwen , Wang Yangxiong
Int J Automot Technol. 2022;23(3):665-679.    DOI: https://doi.org/10.1007/s12239-022-0061-7
      
 Electrical and Electronics
681 VALVE OPTIMIZATION WITH SYSTEM-FLUID-MAGNETIC CO-SIMULATION AND DESIGN OF EXPERIMENTS
U Oh , Norihiko Nonaka , Jun Ishimoto
Int J Automot Technol. 2022;23(3):681-690.    DOI: https://doi.org/10.1007/s12239-022-0062-6
      
 Vision and Sensors
691 MONOCULAR VISION SLAM RESEARCH FOR PARKING ENVIRONMENT WITH LOW LIGHT
Sumin Zhang , Yongshuai Zhi , Shouyi Lu , Ze Lin , Rui He
Int J Automot Technol. 2022;23(3):691-701.    DOI: https://doi.org/10.1007/s12239-022-0063-5
      
 Engine and Emissions, Fuels and Lubricants
703 SPRAY COLLAPSE IN A SIDE-MOUNT GASOLINE DIRECT INJECTION INJECTOR WITH VARIOUS INJECTION CONDITIONS AND INJECTOR NOZZLE CONFIGURATIONS
Huijun Kim , Seungho Yang , Sungwook Park
Int J Automot Technol. 2022;23(3):703-713.    DOI: https://doi.org/10.1007/s12239-022-0064-4
      
 Chassis, Electric, Fuel Cell, and Hybrid Vehicle, Transmission and Driveline, Vehicle Dynamics and Control
715 INFLUENCING FACTORS OF ELECTRIC VEHICLE ECONOMY BASED ON CONTINUOUSLY VARIABLE TRANSMISSION
Bing Fu , Taiping Zhu , Jingang Liu , Youhong Zhao , Jianwen Chen
Int J Automot Technol. 2022;23(3):715-726.    DOI: https://doi.org/10.1007/s12239-022-0065-3
      
 Chassis, Connected Automated Vehicles and ITS, Electrical and Electronics, Vehicle Dynamics and Control
727 SIDESLIP ANGLE CONTROL OF ELECTRONIC-FOUR-WHEEL DRIVE VEHICLE USING BACKSTEPPING CONTROLLER
Giseo Park
Int J Automot Technol. 2022;23(3):727-737.    DOI: https://doi.org/10.1007/s12239-022-0066-2
      
 Body and Safety, Chassis, Manufacturing, Materials and Recycling
739 RECENT DEVELOPMENTS AND TRENDS IN FLEXIBLE FORMING TECHNOLOGY
Hyungrim Lee , Namsu Park , Minki Kim , Myoung-Gyu Lee , Jung Han Song
Int J Automot Technol. 2022;23(3):739-761.    DOI: https://doi.org/10.1007/s12239-022-0067-1
      
 Chassis, Electric, Fuel Cell, and Hybrid Vehicle, Transmission and Driveline, Vehicle Dynamics and Control
763 ROAD TORQUE MODELING FOR ELECTRIC POWER STEERING SYSTEMS
Byeonggwan Jang , Dongwook Lee , Kyuwon Kim , Kyung-Soo Kim
Int J Automot Technol. 2022;23(3):763-771.    DOI: https://doi.org/10.1007/s12239-022-0068-0
      
  Engine and Emissions, Fuels and Lubricants
773 EFFECT OF HYDROCARBON CONCENTRATION ON PARTICULATE DEPOSITION AND MICROSTRUCTURE OF THE DEPOSIT IN EXHAUST GAS RECIRCULATION COOLER
Jinhui Li , Xun Zhang , Huan Wu , Xueshun Wu , Zhiqiang Han , Wei Tian
Int J Automot Technol. 2022;23(3):773-782.    DOI: https://doi.org/10.1007/s12239-022-0069-z
      
 Connected Automated Vehicles and ITS, Electric, Fuel Cell, and Hybrid Vehicle, Vehicle Dynamics and Control
783 DEVELOPMENT OF A NARROW PASSAGE DRIVING SYSTEM FOR SEMI-TRAILER TRUCK BY USING MPC
Sung Hwan Yun , Jung Gun Yang , Kun Soo Huh
Int J Automot Technol. 2022;23(3):783-789.    DOI: https://doi.org/10.1007/s12239-022-0070-6
      
 Engine and Emissions, Fuels and Lubricants
791 CONTROL STRATEGY BASED ON FLOW CONSERVATION EQUATION FOR HIGH-PRESSURE COMMON RAIL SYSTEM
Zi-Guang Gao , Hong-Meng Li , Chun-Long Xu , Guo-Xiu Li , Min Wang
Int J Automot Technol. 2022;23(3):791-800.    DOI: https://doi.org/10.1007/s12239-022-0071-5
      
 Electric, Fuel Cell, and Hybrid Vehicle, Transmission and Driveline
801 REGENERATIVE BRAKING CONTROL STRATEGY BASED ON MULTI-SOURCE INFORMATION FUSION UNDER ENVIRONMENT PERCEPTION
Yue Shang , Chao Ma , Kun Yang , Di Tan
Int J Automot Technol. 2022;23(3):801-811.    DOI: https://doi.org/10.1007/s12239-022-0072-4
      
 Connected Automated Vehicles and ITS
813 SIMULATOR STUDY ON THE RESPONSE TIME AND DEFENSIVE BEHAVIOR OF DRIVERS IN A CUT-IN SITUATION
Myeongkyu Lee , Songhui Kim , Jonghyuk Kim , Ji Hyun Yang
Int J Automot Technol. 2022;23(3):813-823.    DOI: https://doi.org/10.1007/s12239-022-0073-3
      
 Connected Automated Vehicles and ITS, Vehicle Dynamics and Control, Vision and Sensors
825 PERSONALIZED SPEED PLANNING ALGORITHM USING A STATISTICAL DRIVER MODEL IN CAR-FOLLOWING SITUATIONS
Seung Eon Baek , Hak Su Kim , Manbae Han
Int J Automot Technol. 2022;23(3):825-836.    DOI: https://doi.org/10.1007/s12239-022-0074-2
      
 Connected Automated Vehicles and ITS, Electric, Fuel Cell, and Hybrid Vehicle, Vehicle Dynamics and Control
837 DISTURBANCE OBSERVER BASED ACTIVE INDEPENDENT FRONT STEERING CONTROL FOR IMPROVING VEHICLE YAW STABILITY AND TIRE UTILIZATION
Murat Gözü , Basar Ozkan , Mümin Tolga Emirler
Int J Automot Technol. 2022;23(3):837-850.    DOI: https://doi.org/10.1007/s12239-022-0075-1
      
  Engine and Emissions, Fuels and Lubricants
851 COMPUTATIONAL STUDY ON THE FRICTIONAL POWER LOSS REDUCTION OF PISTON RING WITH LASER SURFACE TEXTURING ON THE CYLINDER LINER
Siyoul Jang
Int J Automot Technol. 2022;23(3):851-861.    DOI: https://doi.org/10.1007/s12239-022-0076-0
      
 Engine and Emissions, Fuels and Lubricants
863 COMPREHENSIVE EFFECTS ON PERFORMANCE AND EMISSION OF GDI GASOLINE ENGINE WITH ELECTRIC SUPERCHARGER AND EGR
Zhaoming Huang , Jianping Li , Kai Shen , Li Wang , Hao Pan , Weiguo Chen , Jinyuan Pan
Int J Automot Technol. 2022;23(3):863-869.    DOI: https://doi.org/10.1007/s12239-022-0077-z
      
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