Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Transactions of the Korean Society of Automotive Engineers
Journal Basic Information
Journal DOI :
The Korean Society of Automotive Engineers
Editor in Chief :
Volume & Issues
Volume 21, Issue 6 - Nov 2013
Volume 21, Issue 5 - Sep 2013
Volume 21, Issue 4 - Jul 2013
Volume 21, Issue 3 - May 2013
Volume 21, Issue 2 - Mar 2013
Volume 21, Issue 1 - Jan 2013
Selecting the target year
Development of the Non-contacted Gear Detection Sensor for a Manual Transmission
Han, Chang-Kyu ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 1~7
DOI : 10.7467/KSAE.2013.21.5.001
The present paper relates to a development of the Gear Detection Sensor for automotive manual transmission. To detect air gap from control finger to detecting zone of sensor based on non-contacted method, permanent magnet and linear type Hall IC are mounted in this sensor. Control finger is machined to 3 step heights to detect 3 gear stages such as In-Gear, Normal and Rear. After conducting actual experimentation based on exclusive Jig and FEM, it is described to consider possibility for automotive application of Gear Detection Sensor.
Material Selection Optimization of A-Pillar and Package Tray Using RBFr Metamodel for Minimizing Weight
Jin, Sungwan ; Park, Dohyun ; Lee, Gabseong ; Kim, Chang Won ; Yang, Heui Won ; Kim, Dae Seung ; Choi, Dong-Hoon ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 8~14
DOI : 10.7467/KSAE.2013.21.5.008
In this study, we propose the method of optimally selecting material of front pillar (A-pillar) and package tray for minimizing weight while satisfying vehicle requirements on static stiffness and dynamic stiffness. First, we formulate a material selection optimization problem. Next, we establish the CAE procedure of evaluating static stiffness and dynamic stiffness. Then, to enhance the efficiency of design work, we integrate and automate the established CAE procedure using a commercial process integration and design optimization (PIDO) tool, PIAnO. For effective optimization, we adopt the approach of metamodel based approximate optimization. As a sampling method, an orthogonal array (OA) is used for selecting sampling points. The response values are evaluated at the sampling points and then these response values are used to generate a metamodel of each response using the radial basis function regression (RBFr). Using the RBFr models, optimization is carried out an evolutionary algorithm that can handle discrete design variables. Material optimization result reveals that the weight is reduced by 49.8% while satisfying all the design constraints.
The Effect of Mixing Rate and Multi Stage Injection on the Internal Flow Field and Combustion Characteristics of DISI Engine Using Methanol-gasoline Blended Fuel at High Speed / High Load Condition
Bae, Jinwoo ; Seo, Juhyeong ; Lee, Jae Seong ; Kim, Ho Young ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 15~24
DOI : 10.7467/KSAE.2013.21.5.015
Numerical studies were conducted to investigate the internal flow field and combustion characteristics of DISI engine with methanol blended in gasoline. Dual injection was applied and the characteristics were compared to single injection strategy. The amount of the fuel injection was corresponded to air-fuel ratio of each fuel for complete combustion. The preforming model in this study, software STAR-CD was employed for both modeling and solving. The operating speed condition were at 4000 rpm/WOT (Wide open throttle) where the engine was fully warmed. The results of single injection with M28 showed that the uniformity, equivalence ratio, in-cylinder pressure and temperature increased comparing to gasoline (M0). When dual injection was applied, there was no significant change in uniformity and equivalence ratio but the in-cylinder pressure and temperature increased. When M28 fuel and single injection was applied, the CO (Carbon monoxide) and NO (Nitrogen oxides) emission inside the combustion chamber increased approximately 36%, 9% comparing with benchmarking case in cylinder prior to TWC (Three Way Catalytic converter). When dual stage injection was applied, both CO and NO emission amount increased.
A Study of an Improvement of Swing-out Suppression Algorithm of an All Wheel Steering Electronic Control Unit
Lee, Hyo-Geol ; Chung, Ki-Hyun ; Choi, Kyung-Hee ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 25~33
DOI : 10.7467/KSAE.2013.21.5.025
All-wheel steering (AWS) system is applied to articulated vehicles to reduce turning radius. The swing-out suppression algorithm is applied to AWS ECU, a key component of AWS system. The swing-out suppression algorithm applied to AWS ECU has a problem when velocity of vehicle is changed. In this paper, new algorithm based on moving distance that solve velocity problem is proposed. The HILS simulation and the test articulated bus is used to validate algorithm.
Improvement of Fuel Economy of a City Bus using Shift Indicator
Yum, Siho ; Kim, Kibok ; Park, Jinil ; Lee, Jonghwa ; Park, Kyoungseok ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 34~39
DOI : 10.7467/KSAE.2013.21.5.034
The gear shifting timing of a manual transmission vehicle is influencing fuel economy. This paper focuses on an gear shifting indicator of an city bus with manual transmission, which can improve fuel economy. The shift indicator is supposed to collect the vehicle data during driving, calculate and compare fuel economy with and without gear shifting, and indicate the proper gear shifting timing. The H/W and S/W of the shift indicator are developed and tested on city bus in this research. The experiments are carried out on real road by 3 different drivers and the results show the improvement of fuel economy from 6.0% to 21.4%. The average engine torque and speed are reduced due to early gear shifting and the usage of highest gear is increased. The results of chassis test are also performed and show 7.5% improvement of fuel economy.
Velocity Control and Collision Detection by Feedback Linearization for an Power-assisted Automotive Swing Door
Lee, Byoungsoo ; Park, Min-Kyu ; Sung, Kum-Gil ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 40~46
DOI : 10.7467/KSAE.2013.21.5.040
Automatic swing door for an automotive application is considered. The equation of motion for a driver side swing door is introduced and gravity cancellation control scheme is adapted. The control scheme supposed to cancel the moment due to the tilt of the car. A speed control is suggested for door operation automation but the output of the speed control is not suppose to be precise as for the manufacturing system control. In the frame of the velocity control of the door, feedback linearization was applied for collision detection. The collision detection performance is satisfactory. The estimate of the magnitude of disturbance due to the collision is close to the actual magnitude of disturbance. Simulation study has been performed to gain insight into the system behavior. Also real test on the prototype hardware has been performed for verification purpose.
Static Behavior Characteristics of Disc Spring Stacks
Kim, Youngheub ; Cho, Seunghyun ; Park, Dong Hoon ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 47~53
DOI : 10.7467/KSAE.2013.21.5.047
The wide application of disc springs to the designing of mechanical products with space limit is mainly attributable to their property of sustaining large axial load with small displacement. Due to the impediments in expecting the final results caused by the significant differences existing between a single unit and a stacked form, the force-displacement characteristics of a single disc spring and stacked disc springs are mainly examined in this study. In particular, the hysteresis of the series stack and the parallel stack will be investigated through the FE analysis and the analytical results will finally be compared with the acquired experimental data. In the final result, the analytical results were in accordance with the experimental data.
A Study on DGPS/GIS-based Vehicle Control for Safe Driving
Lee, Kwanghee ; Bak, Jeong-Hyeon ; Lee, Chul-Hee ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 54~58
DOI : 10.7467/KSAE.2013.21.5.054
In recent days, vehicles have become equipped with electric systems that assist and help drivers driving safe by reducing possible accidents. LDWS(Lane Departure Warning System) and LKAS(Lane Keeping Assistant System) are involved in assist systems, especially for lateral motion of vehicles. Sudden and inattentive lateral motion of vehicles due to drivers` fatigue, illness, inattention, and drowsiness are major causes of accidents in highway. LDWS and LKAS provide drivers with warnings or assisting power to reduce any possibilities of accidents. In order to prevent or minimize the possibilities of accidents, lateral motion control of vehicles has been introduced in this research. DGPS/RTK(Differential Global Positioning System/Real Time Kinematics) and GIS(Geographic Information System) have been used to obtain the current position of vehicles and decide when activate controlling lateral motion of vehicles. The presented lateral motion control has been validated with actual vehicle tests.
A Numerical Study on the Flow Characteristics in the Catalytic Muffler with Different Inlet and Outlet Configurations
An, Tae Hyun ; Lee, Seung Yeop ; Park, Yun Beom ; Kim, Man Young ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 59~66
DOI : 10.7467/KSAE.2013.21.5.059
Lack of the space in many diesel vehicles make it difficult to design and install the catalytic muffler to reduce emissions. For this reason, inlet part of the catalytic muffler is made of L-type which has lower flow uniformity than conventional I-type, and catalytic muffler has complex internal structure by various insertions, which affect the flow uniformity and pressure drop of the systems. In this work, the flow characteristics such as flow uniformity and pressure drop have been numerically investigated by changing such various geometries as inlet shape, porosity, and outlet shape inside the muffler with the three-dimensional turbulent incompressible flow solver. Total 4 different cases are considered in order to find optimal configurations of the catalytic muffler in view of high flow uniformity and low pressure drop. The results show that Case 2 which has no induction cone and outlet perforated pipe has higher uniformity index and lower pressure drop than others considered in this work.
Effect of Flow Control Valve Type on the Performance of DME High Pressure Fuel Pump
Sin, Yunsub ; Lee, Geesoo ; Kim, Hyunchul ; Jeong, Soo-Jin ; Park, Kyungyeong ; Suh, Hyun Kyu ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 67~73
DOI : 10.7467/KSAE.2013.21.5.067
This experimental work described the effect of flow control valve type on the performance of wobble plate type fuel pump for the stable DME fuel supply. In order to study this, different four types of flow control valves (ITV, SCV, IMV and MPROP) were installed on the wobble plate fuel pump, and fuel flow rate, torque, and temperature variation of pump were investigated under various operating conditions by using pump performance test system. It was revealed that wobble plate type fuel pump worked well with ITV and SCV control valve, and the flow rate and torque of fuel pump was in proportion to the value of valve open duty. The maximum flow rate and torque of fuel pump were achieved around the 50% duty of control valve. Temperature variation at all pump measuring points were under
which is acceptable.
A Study on the Optimal Cutting Depth upon Surface Roughness of Al Alloy 7075 in High-speed Machining
Bae, Myung-Whan ; Park, Hyeong-Yeol ; Jung, Hwa ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 74~81
DOI : 10.7467/KSAE.2013.21.5.074
The high-speed machining in the manufacturing industry field has been widely applied for parts of vehicles, aircraft, ships, electronics, etc., recently, because the effect of cost savings for shortening processing time and improving productivity is great. The purpose in this study is to investigate the effect of cutting depth on the surface roughness of workpiece with the spindle rotational speed and feed rate of high-speed machines as a parameter to find the optimal depth in the finishing for ball end mill of the aluminum alloy 7075 which is used much in aircraft parts. When the cutting depth for the respective feed rate and spindle rotational speed is varied from 0.1 mm to 0.7 mm at intervals of 0.2 mm in the wet finishing of the aluminum alloy 7075 by the insoluble cutting oils and high-speed machining used in the rough machining of previous study, the surface roughness values and the cutting temperature are measured. In addition, the cutting surface shapes of test specimens are observed by optical microscope and compared with respectively. It is found that the surface roughness values and the temperature generated during machining are increased as the feed rate and cutting depth are raised, but those are decreased as the spindle rotational speed is increased.
Study of Plastic Deformation of Steel Wire for Weight Reduction of Automotive Weather Strip
Choi, Bosung ; Lee, Dugyoung ; Jin, Chankyu ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 82~86
DOI : 10.7467/KSAE.2013.21.5.082
The automotive weather strip has the functions isolating of dust, water, noise and vibration from outside. The core of weather strip is made of steel with stiffness. By using the wire formed as the core of weather strip, weight can be reduced as much as 35% by comparing with existing steel core. For this reason, forming wire is necessary to keep the zigzag shape as it is. The deformation which is occurred during forming process can be predicted and it can be used in case of manufacturing dies through CAE. In this paper, rolling process conditions are deduced and the springback amount is predicted after rolling process by using the simulation. The springback amount of product is measured by using optical microscope, and measurement result is compared with the simulation result of springback as the same condition. The suitable gap between dies to compensate springback after rolling process is predicted through simulation and it is used for manufacturing dies.
ECU-In-the-Loop Simulation for ESC Performance Analysis on the Selection of In-vehicle Networks
Yang, Seung-Moon ; Kim, Seong-Yeop ; Ki, Young-Hun ; Ahn, Hyun-Sik ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 87~96
DOI : 10.7467/KSAE.2013.21.5.087
This paper shows how the performance of an ESC(Electronic Stability Control) system can be affected by the selection of in-vehicle network protocols such as CAN or FlexRay. The vehicle control performance under ESC operation is analyzed by EILS(ECU-In-the-Loop Simulation). The experimental set-up for the EILS of the ESC system consists of two 32-bit microcontroller boards communicated with CAN or FlexRay protocols. A 7-DOF vehicle model and an ESC algorithm with 2-DOF reference vehicle model are implemented on each microcontroller respectively. It is shown by experimental results that the ESC system using the FlexRay protocol can achieve better performance than that using the CAN protocol for a fast and accurate lane changing.
Crash Performance of a Straight Member for Various Section Shapes and Local Reinforcement
Lee, Hunbong ; Kang, Sungjong ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 97~103
DOI : 10.7467/KSAE.2013.21.5.097
Crash performance of the straight member was studied by FE analysis. One end of model was fixed and the other end was impacted by 1,000kg rigid mass with velocity of 16.0m/sec. The maximum and mean load were discussed to compare crash performance. The members with various section shapes were analyzed and the flange location was changed. Also, spot weld points were added in the initial buckling region to investigate its effect. Final rectangular section model which has flanges at the center and reinforcement in initial buckling region showed high enhancement in crash performance.
Study on Structural Durability Analysis at Bicycle Saddle
Cho, Jaeung ; Han, Moonsik ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 104~112
DOI : 10.7467/KSAE.2013.21.5.104
This study investigates the structural analysis result with vibration and fatigue on 3 kinds of bicycle saddle models. When the static load applies on the upper plane of model, maximum stress becomes within the allowable stress in case of model 1. As the value of Stress or deformation becomes lower on the order of model types 1, 2 and 3, these models become more stabilized or safer at durability in this order. On the vibration analysis, model type 1 has the maximum stress or deformation more than 5 times by comparing with model type 1 or 2. Model type 1 becomes most excellent on vibration durability. As maximum displacement due to vibration happens in case of model type 3, it becomes unstabilized. But the stresses of model types 1, 2 and 3 become within the allowable stress and these models are considered to be safe. At the status of the severest fatigue load, model type 3 becomes safer than model type 1 or 2. This study result is applied with the design of safe bicycle saddle and it can be useful to improve the durability by predicting prevention against the deformation due to its vibration and fatigue.
Improving Network Utilization in FlexRay Using Reallocation of Static Message
Seo, Byungseok ; Jin, Sungho ; Lee, Dongik ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 113~120
DOI : 10.7467/KSAE.2013.21.5.113
This paper presents a mathematical model to determine the optimal length of static messages that can achieve more efficient use of a FlexRay network. In order to determine the optimal length of static message, the proposed model evaluates the given set of messages with respect to a network utilization index, which is defined in this work. The efficient use of a FlexRay network is achieved by reallocating any static message whose length is equal or greater than the resulting value to the dynamic segment. The effectiveness of the proposed method is investigated by applying to the SAE benchmark data.
A Study on Characterizing a Healthy Driving Posture
Kim, Darae ; Choi, Hyungyun ; Lee, Joungho ; Ahn, Sungmin ; Lee, Shiuk ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 121~129
DOI : 10.7467/KSAE.2013.21.5.121
To find a healthy driving posture, in this study, survey and empirical analysis given onto measurement of car-seat angle has been performed. Among 153 male respondents, those drivers who has minimum 5 year experience and 2 hours daily driving has been selected by a multiple screening process. They were further confirmed to have no discomfort history in any body region caused by the driving task. Final 44 people verified that their actual driving posture is not significantly different (p
A Study on the Key Performance Factors of Passenger Airbag and Injury Risk Prediction Technique Development
Park, Dongkyou ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 130~135
DOI : 10.7467/KSAE.2013.21.5.130
Until now, passenger airbag design is based on the referred car design and many repetitive crash tests have been done to meet the crash performance. In this paper, it was suggested a new design process of passenger airbag. First, key performance factors were determined by analyzing the injury risk effectiveness of each performance factor. And it was made a relationship between injury risk and performance factor by using the response surface model. By using this one, it can be predicted the injury risk of head and neck. Predicted injury risk of optimal design was obtained through this injury risk prediction model and it was verified by FE analysis result within 18% error of head and 9% error of neck. It was shown that a target crash performance can be met by controlling the key performance factors only.
Construction of Driver`s Injury Risk Prediction in Different Car Type by Using Sled Model Simulation at Frontal Crash
Moon, Jun Hee ; Choi, Hyung Yun ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 136~144
DOI : 10.7467/KSAE.2013.21.5.136
An extensive real world in-depth crash accident data is needed to make a precise occupant injury risk prediction at crash accidents which might be a critical information from the scene of the accident in ACNS(Automatic Crash Notification System). However it is rather unfortunate that there is no such a domestic database unlike other leading countries. Therefore we propose a numerical method, i.e., crash simulation using a sled model to make a virtual database that can substitute car crash database in real world. The proposing crash injury risk prediction is validated against a limited domestic crash accident data.
A Study on the Thermo-flow Analysis of ISG (Integrated Starter and Generator) Driving Inverter
Kim, Dae Geon ; Kim, Sung Chul ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 145~150
DOI : 10.7467/KSAE.2013.21.5.145
Recently, many vehicles have applied electric parts for saving fuel consumption and reducing levels of environmental pollution. ISG (integrated starter & generator) is one of main electric parts and can improve fuel efficiency by using idle stop & go function and regenerative braking system. However, if ISG driving inverter works under the continuously high load condition, it will make the performance and durability of the inverter decreased with rising temperature. In this study, we carried out the analysis on the fluid flow and thermal characteristics of the inverter. As a result, we found the MOSFET of the air cooled inverter was increased up to
over the limit temperature. On the other hand, the liquid cooled type inverter`s MOSFET was decreased by about
compared to that of the air cooled inverter. Therefore, we verified the feasibility of the liquid cooled type using the present cooling structure.
A Study on Waveform Analysis of Oxygen Sensor, Injector and Secondary Waveform through Emission Characteristics by a Decrepit Vehicle
Yoo, Jongsik ; Kim, Chulsoo ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 151~156
DOI : 10.7467/KSAE.2013.21.5.151
The experiment was done on cars travelling at the speeds of 20km/h, 60km/h and 100km/h using the performance testing mode for chassis dynamometer. In this experiment, the relativity between the secondary waveform coming from ignition coil and exhaust emissions were measured in case of cars with failures, in oxygen sensor, spark plugs. The following results obtained by analysis of the relativity between the secondary waveform and exhaust emissions. 1) When the oxygen sensor is failure, the average value of CO emission measured was 6.8 times higher than the standard CO emission value and the average value of HC emission measured was 2.3 times higher than the standard emission level. 2) When engine parts are in failure, more fuel enters the cylinder due to longer opening duration of injector, and it tended to make CO and HC emission values increase. 3) Combustion duration, the shape of flame propagation during spark line, and the size of the discharge-induced energy were the three main elements that directly cause variations in CO and HC emission values.
Light-weight Design of Automotive Spring Link Based on Computer Aided Engineering
Park, Jun-Hyub ; Kim, Kee Joo ; Yoon, Jun-Gyu ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 157~161
DOI : 10.7467/KSAE.2013.21.5.157
It is well known that the targeted fuel efficiency could only be achieved by more than 40% reduction of the vehicle weight through improved design and extensive utilization of lightweight materials. In order to obtain the goal of the weight reduction of automobiles, the researches about lighter and stronger spring link have been studied without sacrificing the safety of automotive components. In this study, the weight reduction design process of spring link could be proposed based on the variation of von-Mises stress contour by substituting an aluminum alloys (A356) having tensile strength of 245 MPa grade instead of SAPH440 steels. In addition, the effect of the stress and stiffness on shape variations of the spring link were examined and compared carefully. It could be reached that this approach could be well established and be contributed for light-weight design guide and the safe design conditions of the automotive spring link development.
The Safety Evaluation Method of Advanced Emergency Braking System
Jang, Hyunik ; Cho, Seongwoo ; Yong, Boojoong ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 162~168
DOI : 10.7467/KSAE.2013.21.5.162
Recently, there have been efforts in many countries to reduce social expenses and casualties resulting due to car accidents. As such, ASS (active safety systems) are being researched and developed to prevent accidents and target mitigation. Among many useful active safety systems, it has been reported that commercial AEBS (Advanced Emergency Braking System) effectively prevents accidents and reduces casualties simultaneously. Accordingly, it is necessary to set Korean AEBS standards, and this research analyzes international AEBS standards for this necessity. In addition to the evaluation methodology of AEBS ECE Regulation, this study suggests traffic scenarios that occur frequently in domestic road environments, and provides an evaluation system for AEBS of the scenarios. Finally, the performance and safety of AEBS are evaluated through field test.
Comparison Analysis of Dynamic Characteristics of Servo-hydraulic Piezo-driven Injector between 3-way and Bypass-circuit Type
Jo, Insu ; Jeong, Myoungchul ; Lee, Jinwook ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 169~175
DOI : 10.7467/KSAE.2013.21.5.169
CRDi technology of diesel engine was developed from in the early 2000s due to a need to increase fuel efficiency and environment care. Especially, high-pressure fuel injection system in CRDi system which has a fuel injection unit including an injector, a fuel pump and common-rail, etc. becomes possible to make the exhaust gas clean as well as power improvement. In this study, comparison of dynamic characteristics of servo-hydraulic piezo-driven injector with 3-way and bypass-circuit type was analyzed by using the AMESim code. As results of this study, it found the bypass-circuit inside servo-hydraulic piezo injector can cause a faster injection response than that of the 3-way type. Also it was shown that bypass-circuit type had better control capability due to hydraulic bypass system.
PM Reduction Efficiency using Metal Type DPF
Rah, Wan Yong ;
Transactions of the Korean Society of Automotive Engineers, volume 21, issue 5, 2013, Pages 176~180
DOI : 10.7467/KSAE.2013.21.5.176
After-treatment apparatus ceramic DPF (diesel particulate filter) have been applied to reduce harmful particulate matters(PM) among emissions from diesel engines so far, but they are easy to be fragile and weak in thermal shock. This research aims to investigate a metal type filter which is superior in mechanical strength and heat conduction rate and is beneficial economically in manufacturing. Basic performance of metal DPF such asloading test, temperature gradient test, thermal shock test, heat resistant test and back pressure was carried out. And then their experimental data provided key informations in designing and manufacturing such as detailed structures of metal mesh filter. Also diesel engine and vehicle of 2957cc displacement was tested under lug-down 3 mode and CVS-75 mode. PM reduction efficiency was 54.5% using metal DPF without loss of performance and fuel consumption.