• Journal of Digital Convergence
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• v.17 no.12
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• pp.203-210
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• 2019

Most cars today use electronic control to control the state of the engine to achieve optimum performance. This study developed a device for maintaining fault diagnosis and optimal vehicle status by displaying the engine information of a car on the screen in real time using can communication. This system displays information generated from the engine to the driver in real time such as engine intake and exhaust temperature, current battery voltage, tire pressure, RPM, DPF collection amount, torque, and horsepower through the OBD2 socket. You can check immediately. It can help you to drive safely by measuring tire pressure and displaying it on the screen, and it provides a mode to set the shift timing to suit your taste. In particular, in the case of diesel engine cars, the problems caused by smoke can adversely affect the performance and environmental pollution. Therefore, the system was developed to display the DPF collection amount on the system screen to prevent environmental pollution and to manage the vehicle efficiently.

• Journal of Auto-vehicle Safety Association
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• v.11 no.2
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• pp.6-10
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• 2019

This paper describes effectiveness of accident reduction on vehicles equipped with AEB using accident data occurring in Korea. During the statistical period, we used the number of vehicles which are covered by auto insurance and the number of accidents. To maximize the reduction effect of accidents caused by the driver's carelessness, the analysis was limited to Physical Damage Coverage that covers the cost of repairing or replacing the damaged vehicle caused by the driver's fault. Due to Personal Information Protection Law, it was not capable of comparing the same vehicle using Vehicle Identification Number in this study. Instead of that, we used it as a similar vehicle, so there are limits to the comparison and analysis results. As a result of this study, we have found that the effect of reducing accidents was different depending on the vehicle class, but it was generally concluded that the number of accidents decreased when the vehicle was equipped with an AEB system. Domestic research on the AEB effect of reducing accidents is not active yet. Therefore, it is absolutely essential to analyze the effects according to various conditions such as driver's age, occupation and gender as well as expanding the study models in the future.

• Proceedings of the KIEE Conference
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• 2005.07b
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• pp.1778-1780
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• 2005

환경 친화적인 자동차, 안전한 자동차, 편리하고 편안한 자동차 등 시장과 소비자의 다양한 욕구에 부응하기 위하여 기존의 기계식 자동차 부품들을 전기/전자식으로 대체하기 위한 노력이 꾸준히 진행되고 있으며, 특히 최근의 반도체 기술의 비약적인 발전과 더불어 자동차 부품의 전기/전자화가 급격히 진행되고 있다. 이에 따라 자동차에서 사용되는 전기에너지의 소요도 지속적으로 증가하여 기존의 14V 전원체계의 효율저하 및 용량의 한계를 초래하였고, 새로운 차량용 전원체계에 대한 필요성이 대두되게 되었다. 이와 같은 필요성에 의하여 새로운 차량용 전원체계에 대한 다각적인 검토가 이루어졌으며, 1990년대 중반 이후 차량용 전원 시스템의 새로운 대안으로 42V 전원체계가 제시되었다. 본 논문에서는 자동차 42V 전원체계의 도입에 있어서 핵심적인 역할을 수행하는 에너지 저장장치의 개발필요 및 동향에 관해 간략히 소개하고, 출력 및 내구성능을 개선한 에너지 저장 시스템 개발결과에 대해 소개하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.1115-1117
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• 2010

안전운전 지원 시스템 개발을 위해서 고려되어야 할 요소는 차량정보, 운전자정보, 외부 환경정보가 있다. 기존의 안전운전 지원 시스템 개발은 주로 차량의 종방향 제어, 횡방향 제어, 조향각 제어 등 차량으로부터 직접 추출한 주행정보를 이용하여 운전자의 안전유무를 평가하였다. 그러나 최근의 조사결과에 따르면 교통사고의 90%이상이 운전자 실수에 의해서 발생한다는 것을 알 수 있다. 이와 관련하여 차량의 주행 정보뿐만 아니라 실제 운전자가 주행 중에 행하게 되는 행동정보기반의 안전운전지원시스템 개발이 활발히 연구되어 지고 있다. 본 논문에서는 운전자의 행동정보를 이용한 안전운전 평가시스템의 설계 개념과 안전운전 평가시스템의 핵심 요소인 표준모델 구축 방법에 대해서 논의하고자 한다.

• Journal of Digital Convergence
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• v.18 no.4
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• pp.237-242
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• 2020

Online e-commerce management systems are gradually increasing, and transactions are made in various items. However, the reliability between sellers and buyers is very important in high-priced transactions such as automobiles when used transactions online. Nevertheless, in the existing used trading system, a device that prevents fraud or trusts the seller is insufficient. This paper developed a blockchain-based used transaction management system to improve the reliability that occurs during used transactions. We have improved the safety trading system by developing a trading management system for used cars with the highest amount of used cars in various fields. This system uses Ethereum-based smart contract to guarantee reliability without third party intervention. By designing the contracts required for used car trading by utilizing smart contracts, it was possible to reduce the effort and time of trading participants in the existing used car transactions, while enabling safe transactions. In addition, this system mitigated information asymmetry between buyers and sellers, and reduced and prevented brokerage fees in the distribution process without third parties.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.776-778
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• 2011

급속충전 기술은 현재 battery의 성능 및 안전성 등 다양한 요인에 따라 동작성능이 좌우되므로 모니터링 시스템에 의한 충전상태 파악은 충전 알고리즘의 개선, 전기자동차 BMS와 연동, 사용자와의 충전 프로세스 제어 등 다양한 작업환경과 연계되어 있다. 급속충전시스템의 동작 상태를 CAN 프로토콜을 이용하여 실시간으로 감시가 가능한 시스템을 설계 제작하여 전기자동차의 battery를 최단시간에 최적화된 상태로 충전 가능하도록 설계하여 급속충전기 실시간 모니터링 시스템을 설계하는 방법을 제안한다.

• Proceedings of the KIPE Conference
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• 2014.07a
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• pp.9-10
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• 2014

자동차 업계는 전장화 가속화와 강화된 환경규제에 대응하기 위해 자동차의 12[V] 전기시스템과 더불어 48[V] 전기 시스템에 대한 도입을 추진하고 있다. 듀얼 전기시스템을 사용할 경우 소모 전력이 적은 부품에 대해서는 기존의 12[V] 시스템을 유지하고 전력 소모가 큰 전동식 조향장치, 브레이크, 공조 시스템은 48[V] 시스템을 사용함으로써 비용을 최소화 하고 연비를 최대 15[%]까지 개선시킬 수 있는 특징을 갖고 있다. 이를 구현하기 위해서는 양방향 DC/DC 컨버터가 필수적 이며 LS그룹 계열사인 자동차부품 전문기업인 대성전기에서는 4-phase Synchronous Buck 구조의 양방향 DC/DC 컨버터를 개발하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.263-266
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• 2011

Drivers check always vehicle state for own safety and is necessary to understand about vehicle state. If driver know vehicle state, because driver request vehicle state at vehicle specialty company, driver pay a lot of money and waste a lot of time. Now, drivers have checked vehicle state by using variety features of smart phone due to progress of IT(Information Technology). but existing smartphone vehicle diagnostic system learned professional knowledge of vehicle and know vehicle state. drives not need vehicle diagnostic. to overcome these disadvantages, there use easily drivers by using smartphone and request system to know own all vehicle state. In this paper, there implement vehicle diagnostic system with smartphone based on android OS to use easily this system and know check information of vehicle supplies replacement cycles, vehicle internal problems, Eco driving by using OBD-II data to receive by OBD-II Protocol convert Bluetooth connector.

• Archives of design research
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• v.19 no.5 s.67
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• pp.55-64
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• 2006

As digital systems were introduced to automotive design in the mid 1980s, the design process has adopted many digital programs to save time compared to the conventional hand drafting. Digital technology was introduced not only to satisfy the reeds of the global environment, as the number of automobiles exported to many different parts of the world has increased, but also to save time and effort in developing several models of quality automobiles. Therefore, every automotive manufacturer in the world has expanded its virtual reality(VR) studio to establish visualization systems that visualize automobiles in the actual size and a co-operation system that enables simultaneous feedback from all of its design studios around the world. Unlike the existing design reviewing methos, the new improved feedback system is assessed as a reasonable method to evaluates and understand how the automobiles are actually manufactured in simulation. It is especially helpful when advanced products and concept cars require fast results. Other strengths of the new system include shorter development period, cost efficiency, no more manual labor, various designs within a short period of time, and realistic visualization of concepts. Large-scale products, including automobiles, need to be projected in the actual size and high clarity through the Power-wall System and are examined in a virtual space called a Cave. Therefore, it took much time to establish digital infrastructure. An infrastructure would constantly require system improvement and performance enhancement, but it is certain that now is the right time for the take-off to utilizing the strengths of digital design and improve the weaknesses. In this respect, this study provided an understanding of the importance of digital design based on digital reinforcements and examined an effective utilization of digital technology for an efficient development of automobiles in the future.

• Journal of Digital Convergence
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• v.11 no.8
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• pp.213-218
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• 2013

In this paper, when vehicle inspection is made, the check way is recommended based on the intelligent and personalized in the workplace, education, and other space-time according to the current situation. These results increase productivity, reduce costs, and improve performance. So we designed vehicle inspection recommendation system using ontology. Recommendation method is that components connected concept are shown according to weight value. if components are connected with other concept, the components are extended.