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인공 신경망 알고리즘을 이용한 SI 엔진에서의 연소 압력과 노킹 센서 신호의 상관관계분석
정성대(SungDae Jung),조영선(YoungSun Cho),도형수(HyungSoo Do),김성재(SungJae Kim) 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11
The purpose of this study is to improve the knocking detection performance by analyzing the correlation between knocking sensor signal and combustion pressure signal. A frequency analysis was performed on the knocking sensor signal for feature extraction, and an artificial neural network algorithm was used as a modeling method. As a result, we confirmed that knocking sensor signal and combustion pressure signal had a high correlation, and confirmed the possibility of improving knocking detection performance using ANN.
오프라인 네트워크에서의 전기차 충전기 관제 시스템 CI/CD 적용
정성대(Sungdae Jung),조영선(Youngsun Cho),성봉진(Bongjin Seong),김형진(Hyungjin Kim),이명우(Myungwoo Lee) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11
Recently, neglect of electric vehicle charger operation and management has become a problem, and to solve this problem, the establishment and operation of a charger control system is becoming important. It is important for web-based systems, such as charger control systems, to provide continuous service without interruption, and quick action is required when a problem occurs in the system. CI/CD automates the SW integration, build, testing, and distribution processes to be performed continuously, and has the advantage of quickly serving highly reliable SW to users. In this study, CI/CD was applied to the development of an electric vehicle charger control system to increase the reliability of the charger control system and ensure quick and stable service to users.
정성대(Sungdae Jung),조영선(Youngsun Cho),성유현(Yoohyun Sung),김형진(Hyungjin Kim),이명우(Myungwoo Lee),성봉진(Bongjin Seong) 한국자동차공학회 2022 한국자동차공학회 학술대회 및 전시회 Vol.2022 No.11
Recently, two-wheeled vehicles are rapidly becoming electrified and electrified following four-wheeled vehicles. In the case of electric motorcycles, in order to increase the penetration rate, it is necessary to provide services related to electric motorcycles due to the characteristics of the market. In this paper, we introduce the services developed for electric motorcycles based on IoT, and the results of analyzing the data obtained from the pilot operation of the service.
ITS 서비스 제공을 위한 VMC 응용 프로토콜 인터페이스 개발
정성대(SungDae Jung),장상우(Sang-Woo Jang),이상선(Sang-Sun Lee),한경수(kyeong-Soo Han) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
Conversion technology between IT(Information Technology) and automotive technics creates the new industry of ITS (Intelligent Transport systems) and the new paradigm in electronics, communication and traffic fields. Specially, Vehicular communication in ITS field is one of the most important technologies necessary to connect among driver, vehicle and provider to provide quality services. Solutions for vehicular communication based on IEEE 802.11 are described in IEEE 802.11p. IEEE 802.11p WAVE (Wireless Access in the Vehicular Environment) defines amendments to IEEE 802.11 that are necessary to support ITS applications. In Korea, V2V (Vehicle-to-Vehicle) and V2I (Vehicle-to-Infrastructure) communication systems called VMC (Vehicle Multi-hop Communication) are being developed by the Electronics and Telecommunications Research Institute. In this paper, we define the API(Application Protocol Interface) and communication sequence to provide the quality services about the reliability data exchange based on VMC.
서인혁(Inhyeok Seo),정성대(Sungdae Jung),최광일(Kwangil Choi),김인식(Insik Kim) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11
With the development of autonomous driving and ADAS systems, safer and convenient systems are required. In order to guarantee safety to the possible danger from the vehicles in rear, this paper presents the development of Rear Risk Defense System (RRDS) that warns and controls from rear vehicles. It contains system of History View Processing (HVP) to select target vehicles, which calculates rear lane using lane information from front camera. In addition, to evaluate and verify the developed RRDS, we configured in an actual vehicle environment. Experimental tests show the effectiveness of the proposed system.