본 연구는 자동차부품제조기업종사자들의 조직공정성이 직무만족에 미치는 영향에 대한 조직후원인식의 매개효과를 규명 하는데 있다. 선 행연구를 기반으로 한 설문지를 자동차부품제조기업종사자를 대상로 배 포하여 148부가 회수되었으며, SPSS 20.0 통계 분석 프로그램을 사용 하여 통계 분석을 실시하였다. 분석 결과, 조직공정성은 직무만족에 유 의미한 정(+)의 영향을 미쳤으며, 조직후원인식은 매개 효과가 있는 것 으로 나타났다. 이에 따라 첫째, 조직공정성이 강화될수록 직무만족에 미치는 영향이 있는 것을 알 수 있었다. 둘째, 조직후원인식이 조직공정 성과 직무만족간의 매개효과를 확인할 수 있었고 이는 조직구성원들의 노력과 성과에 가치를 두고 복지를 증대시키면 조직후원인식을 통해서 직무만족을 더 잘 할 수 있음을 의미한다. 이는 조직후원인식을 통하여 조직공정성을 강화함으로써 직무만족을 향상 할 수 있는 가능성을 시사 한 것으로 볼 수 있다.

Internal combustion engine is the main source of environmental pollutants and therefore advanced technology is required to reduce harmful elements from the exhaust gases all over the world. Especially, when the exhaust gas is released from the automotive muffler, exhaust noise has many bad influence on the surrounding environment. In order to reduce the exhaust noise, it is necessary that automotive muffler must be designed for best exhaust efficiency. The sound insulation room was installed for the analysis of an acoustics characteristics of the noise from automotive muffler, in this study. Exhaust gas noise, noise distribution characteristics, pressure and temperature of exhaust gas were investigated with the change of annulus temperature of air cooled annulus automotive muffler and cooled annulus automotive muffler. The following results were obtained with this study. From the frequency analysis of automotive muffler, high noise distribution was observed in the range 100~2000Hz. It means that the noise in this range has an dominate influence for the overall noise. Noise reduction of automotive muffler was affected by the temperature of annulus. It is caused the result that the high temperature and pressure of exhaust gas are changed lower by the drop of annulus temperature. The tendencies of noise, the temperature and pressure of exhaust gas are similar to the performance curve of engine. Exhaust gas pressure is determined by the r.p.m. of engine and affected by the cooling performance of automotive muffler.

Along with the development of the automobile industry, the materials and processing technology of parts have also developed. In particular, various materials have been developed and applied to automobile bumpers, which are directly related to crash safety. In particular, the application of composite materials is expanding for weight reduction. In this study, a new composite material made of a mixture of carbon fiber and aramid fiber was developed and the possibility of application to an automobile bumper was reviewed, and significant results were obtained.

Production management in the automobile parts industry is carried out according to the production plan of the customer, so it is important to prevent shortages in product supply. As the product composition became increasingly complex, the MES System was built for the purpose of efficient production plan management and inventory management, but its utilization is low. This study analyzed the problems of the MES system and sought to improve it. Through previous studies, it was confirmed that the inventory management of the pull approach that actually occurred in the warehouse is more suitable than the push approach based on the forecast of the warehouse for the volatility, complexity, and uncertainty of orders in the auto parts industry. To realize this, we tried distributed MRP by using the ADO function of VBA to link the standard information of the MES system with Excel and change the structure of the BOM table. Through this, it can help increase the accuracy of production planning and realize efficient inventory management, thereby increasing the utilization of the MES system in the auto parts industry and enhancing the competitiveness of the company.

The styling of automobile wheels and their effect on vehicle appearance has increased in importance in recent years. The wheel designer has been given the task of insuring that a wheel design meets its engineering objectives without affecting the styling theme. The wheel and tire system is considered as a vehicle component whose dynamic modal information of the tire/wheel system are employed in the modal synthesis model of the vehicle. The Modal characteristics of a Automobile wheel play an important role to judge a ride comfortability and quality for a Automobile. In this paper, the modal characteristics of a Al-alloy and steel wheel for Automobile are studied. Natural frequency, damping and mode shape are determined experimentally by frequency response function method. Results show that wheel material property, size and design are parameter for shift of natural frequency and damping.

Road surfaces and tires have a great influence on road noise in automobiles. Therefore, this study attempted to investigate the effect of changes in road surface and tire tread on road noise. For six road surfaces, road noise was measured and analyzed while changing two types of tire treads. In all frequency bands, the sound pressure of the road surface with a relatively large roughness was higher than that of other roads. And in the case of a road surface with relatively large pore, it was investigated that noise was reduced compared to other road surfaces due to the sound absorption effect in the low frequency area. On roads with irregular road roughness, the high sound pressure was exhibited in all frequency bands regardless of tire tread, indicating an increase in road noise due to irregular wear on roads. It was confirmed that the noise deviation due to the change in road surface was larger than the noise deviation due to the tire structure, and it is judged that noise research according to the structure and condition of the road surface.

Domestic as well as global automobile manufacturers are making greater efforts in cost reduction to strengthen the competitiveness. In this study, we developed a program to effectively manage standard time of automobile assembly line, and confirm based on A-automobile factory data. For the purpose, we develop the system which is possible to manage standard time as well as calculate man-hour for automobile assembly line.

Numerical analysis has been carried out to investigate the flow field characteristics for exhaust gas in automobile engine DPF system. The DPF system performance is largely affected by exhaust gas flow while it passes through the complicated geometry of DOC/DPF system, fan shape structure, and perforated can with air for fuel combustion. Hence the characteristics of fluid velocity, pressure, and streamline are analyzed with velocity uniformity in front of DOC and swirl flow near the fan. It can be seen that the velocity uniformity increases with the gas flow rate including flow acceleration near the lower area of the fan. The air flow also influences the gas flow distribution close to the impeller and fan structure with complicated swirl flow. These results are expected to be applicable as fundamental design data for automobile engine exhaust system.

사내하도급의 증가는 기업의 생산방식 및 작업조직의 변화와 함께 고용관계 전반에 영향을 미친다. 본고는 현대자동차 울산공장 사례를 통해서 사내하청이 주요 생산공정에 도입되면서 나타나는 작업장 변화를 고용관계와 노동자의 권리 측면에서 조사하였다. 또한 전통적인 양자 간의 고용관계와는 다른 원청기업과 하청업체의 관리적 통제를 받는 하청노동자의 고용에 따른 기회와 취약성을 파악하고, 사내하청에 내재된 고용관계의 모순적 본질을 분석하였다. 사내하도급을 통한 간접고용의 활용은 제한된 고용기간 및 차별적 임금, 근로조건에 더불어 양자간 고용관계에서 형성되었던 법적, 제도적 규제에서 벗어난 노동자 권리와 의무의 불명확성을 야기한다. 따라서 사내하도급이 도입된 작업장에서 비정규직 근로자들은 간접고용 및 분절된 고용체계, 노사관계로 인해 노동조합 가입과 권리 대변이 제약되는 구조적 문제에 처해있다. 본고는 사내하청의 활용과정에서 나타나는 노동조합 조직의 변화, 정규직 노 조의 대응, 정규-비정규 근로자 간의 갈등구조에 대해 살펴보았다. 기업별 노조형태에서 비정규직 근로 자가 직면하는 노조 참여의 어려움과 정규직-비정규직 노조의 협력 및 대립, 갈등문제를 구체적으로 밝히면서, 본고는 비정규직 노조 제약요건과 권리보호에는 다양한 작업장 행위자의 역할과 상호 간의 역학관계가 밀접히 연관되어 있음을 제시하였다.

The global trend is the application of heat-treated omission materials to reduce the manufacturing cost of automobile steering parts. Attempts have been made to apply heat-treated omission materials in domestic, but they are delayed due to concerns over rising cold forging process costs. For quantitative prediction of cold forging process cost, fatigue properties of forging die materials were evaluated. Based on this, the die life and cost were predicted quantitatively, and the manufacturing cost reduction of automobile steering parts using heat-treated material was found to be about 11%. Also, various methods to improve die life were additionally presented.

현재 세계는 4차 산업 혁명시대를 맞이하여 세계 각국은 기술혁명은 물론, 경제사회적 인프라, 기업조 직의 대대적인 혁신을 추진하고 있다. 노사관계는 4차 산업의 기술혁명을 뒷받침하여 산업평화와 함께 기업의 경쟁력을 강화함으로써 궁극적으로 국익과 직결되고 총체적으로 국가경쟁력 향상의 필수 요건이라는 측면에서 그 필요성과 중요성은 아무리 강조해도 지나치지 않다. 자동차산업계에서도 각 기업은 지식과 정보의 가치의 중요성을 인식하고 이를 선점하기 위해서 전기 자동차, 자율주행차, 수소자동차 등의 첨단기술개발에 기업의 역량을 집중하는 한편, 경쟁기업의 지식과 정보를 입수하여 효과적인 4차 산업의 경영전략을 구사하기 위해 방법을 가리지 않는 ‘총성 없는 전략전쟁’을 하고 있는 실정이다. 그러나 현대자동차로 대표되는 한국의 자동차기업들은 어렵게 개발한 첨단기술들을 토대로 효과적인 4차 산업의 경영전략을 전개하기 위하여 생산방식의 대대적인 혁신을 과감하게 추진하고 있다. 하지만 이러한 기업의 치열한 노력을 제약하는 최대 요인으로 노사관계를 꼽지 않을 수 없다. 그간 자동차산업을 비롯한 한국의 노사관계는 민주화라는 기치 하에 괄목할 만한 성장을 이루었다. 이제 한국의 노사는 노사 관계의 민주화 프레임을 넘어서 4차 산업혁명을 보완하는 성숙한 단계로 나아가야 할 시점이다. 그럼에도 불구하고 현대자동차 등 한국의 자동차 기업은 여전히 민주화 프레임의 틀을 벗어나지 못할 뿐 아니라 노조이기주의적 성향을 강하게 노출하고 있다. 따라서 본 연구는 이러한 시대적 변화의 변곡점에서 노사가 취할 전략 방향을 이웃나라 일본의 세계적 기업인 도요타자동차와의 비교를 통하여 분석하여 본 것이다. 그 결과 현재와 같은 역동적인 시대에는 전략과 노사관계는 연동되어야 하며 역시 경영이 주도권을 갖고 과감한 조직과 생산의 개혁을 추진해야 하며 노동조합은 민주화나 조직이기주의의 틀을 뛰어넘어 협력적 노사관계로 경영을 강력하게 지원하는 것이 노사가 상생하는 길임을 제시할 수 있을 것이다.

Artificial intelligence (AI) has been applied to most industries by enhancing automation and contributing greatly to efficient processes and high-quality production. This research analyzes the applications of AI-based automobile accident prevention systems. It deals with AI-based collision prevention systems that learn information from various sensors attached to cars and AI-based accident detection systems that automatically report accidents to the control center in the event of a collision. Based on the literature review, technological and institutional changes are taking place at the national levels, which recognize the effectiveness of the systems. In addition, start-ups at home and abroad as well as major car manufacturers are in the process of commercializing auto parts equipped with AI-based collision prevention technology.

The purpose of this study is to provide the priority of the front-loading factors in the design stage of the automotive parts development process in order to efficiently and effectively respond to the demands of the car maker (customer). Front-loading is defined as a strategy in order to improve development performance by shifting the identification and solving of design problems to earlier phases of a product development process. Two approaches of the front-loading are project-to-project knowledge transfer and rapid problem solving. For the study, a survey was conducted on the R&D department in the automobile parts company and analyzed by AHP (Analytic Hierarchy Process) method. The result of the survey shows the cost savings is the highest weight in terms of front-loading effect and in terms of front-loading factors, it gives priorities as “the problems of past project” first, “Design Review” second, “CAE (Computer Aided Engineering)” third, “FMEA (Failure Mode and Effects Analysis)” fourth, “benchmarking” and SR (Sourcing of Requirements). The results of the study will be helpful to provide practical value for improving product design of component development.

Automobiles are largely divided into passenger cars with less than five passengers and commercial vehicles such as construction machines, trucks, mixers, special lorries, and large buses. Automobile maintenance companies are also divided into passenger cars and commercial vehicles. Because commercial vehicles are the livelihood vehicles of individual carriers engaged in cargo transportation, passenger transportation, and construction, fast and accurate maintenance is important. Access to the expressway is also important because the car is large and uses highways. In addition, the time required for troubleshooting is long, so sufficient space must be secured for parking the vehicle, and ease of entry and exit of the vehicle in the maintenance shop should be fully considered. For this reason, commercial vehicle maintenance companies have higher initial investment costs than car maintenance companies, and it is difficult to supply and maintain maintenance personnel. Therefore, it is necessary to carefully examine and analyze various related factors for successful commercial vehicle maintenance company selection. However, most existing commercial vehicle maintenance companies often choose their location based on the empirical judgment of the founder, the customs and the case, without a clear analysis. In this study, we show how to derive the location selection factors to be considered when establishing professional maintenance company for commercial vehicles and to select the optimal location by using AHP (Analytic Hierarchy Process) method.

In this study, simulation studies were conducted to develop insert injection molds to improve the mass production of terminal assemblies. For the main part of the automobile door latch, charging, holding pressure and deformation analysis were performed according to the gate position of the injection process. As a result of injection molding analysis of the terminal assembly, the flow pattern was uniformly made while maintaining a constant balance of the filling of the product, and the pressure distribution at the time of filling was confirmed. When the analysis results are applied to the mold fabrication in the improved structural method, the transfer lines of the molten resin are controlled by the dam of the 1st injection molding, so that the transmission line is not short-circuited or deformed, and the watertightness, corrosion resistance, and good surface We believe the injection will be possible.