Computationally Efficient Model Predictive Control for Hybrid Electric Vehicle Using Driving Pattern Recognition Network

박현민,Jong Min Lee,오세규,김진성 제어·로봇·시스템학회 2025 International Journal of Control, Automation, and Vol.23 No.6

With intensifying concerns over emissions, hybrid electric vehicles (HEVs) offer a practical bridge toward electrification by combining an internal combustion engine and an electric battery for improved efficiency and lower emissions. This study proposes a driving pattern recognition network-hybrid model predictive control (DPRN-HMPC) framework to improve the energy management of parallel hybrid electric vehicles (PHEVs) while reducing computational complexity. DPRN-HMPC leverages a pre-trained deep neural network classifier to identify the driver’s current driving pattern, which is then used to predict the wheel torque demand input for the model predictive control (MPC). This approach effectively predicts wheel torque demand—a stochastic variable—without relying on a computationally expensive stochastic model. Simulation results demonstrate that DPRN-HMPC improves average energy efficiency by 1.08% over linear deterministic MPC (LDMPC) across ten driving cycles. It maintains performance comparable to scenario-based hybrid MPC (scHMPC) while reducing computation time by 77.3%, ensuring feasibility within the 1,180-second limit of the New European Driving Cycle. Additionally, DPRN-HMPC achieves a 0.75% improvement in energy efficiency across five unseen driving cycles, demonstrating adaptability to new driving scenarios. These findings highlight the effectiveness of DPRN-HMPC in providing both practical and energy-efficient control solutions for PHEV energy management.

치과종사자의 근골격계 자각증상과 직무스트레스가 피로도에 미치는 영향

박현민 보건의료산업학회 2015 보건의료산업학회지 Vol.9 No.4

Objectives : The aim of this study was to investigate the effect of musculoskeletal symptoms and job stress on the fatigability of 268 dental health care workers in Busan. Methods : A structured, self-administered questionnaire was given from Oct 1 through Oct 10, 2015. The collected data were analyzed with the SPSS 18.0 program. Results : The results were as follows. First, for musculoskeletal symptoms, job stress and fatigability, the highest scores were for low back pain (3.23), business stress (2.95) and physical fatigability (3.32), respectively. Second, physical fatigability increased with increasing myofascial pain syndrome, low back pain and business stress. Mental fatigability increased with increasing business stress, human relationships and social activities and decreasing age. Conclusions : Taking the above into consideration, this thesis suggests that there is definite influence from musculoskeletal symptoms and job stress factors on physical and mental fatigability.

직운산층에서 산출된 Camerate 해백합 화석에 대한 예비보고

박현민,이승배,이동찬 한국고생물학회 2019 한국고생물학회 정기총회 및 학술발표회 Vol.2019 No.2

면역성혈소판감소증과 악성 복수를 동반한 비분비성다발성골수종

박현민,김인호,이문희,한지영,김철수 大韓血液學會 2002 大韓血液學會誌 Vol.37 No.2

한국노인의 구강건강행위 및 상태가 정신건강과 삶의 질에 미치는 영향

박현민 보건의료산업학회 2014 보건의료산업학회지 Vol.8 No.4

This study conducted a secondary analysis using original data of <The Fifth Korea National Health and Nutrition Examination Survey, 2012> performed by Korea Institute for Health and Social Affairs to determine factors affecting oral health-related quality of life and mental health in the elderly. The research subjects were 1,217 people who were over 65 years old and completed an oral examination and oral questionnaire survey. The results were as follows. First, mental health problems arise in people with an oral health status designated as ‘bad’ or when they feel ‘very uncomfortable’ chewing or speaking. Second, the quality of life decreases as problems with chewing and speaking increase. The results reveal that to reduce problems of mental health(stress, depression, suicide) and to enhance the quality of life, there is a need to develope diverse programs for preventive treatment and oral health education. What is the most important is consistent policy support.

신경계 : 일반연제 ; 쇄골하동맥 도혈 증후군에서의 척추동맥 혈류 변화

박현민,최장욱 대한임상병리사협회 2009 임상생리검사학회 발표자료집 Vol.2009 No.-

배경: Subclavian Steal Syndrome은 1961년 Fisher에 의해 처음으로 기술 되었으며 Subclavian artery나 Brachiocephalic artery의 proximal부분에 심한 협착이나 폐색에의 일어나는 혈류 장애이다. 혈류방향은 Systolic phase에서는 팔로 향하고 Diastolic phase에서는 뇌로 향하게 흐르며, 협착의 정도에 따라 도류현상이 심해진다. 심할 경우 병변측의 Vertebral artery의 혈류방향이 지속적으로 팔로 향하게 되며, posterior circulation에서의 중요한 감별진단에 속한다. Aim: Subclavian Steal Syndrome에서 환자의 임상증상과 Transcranial Doppler를 통한 Vertebral artery 협착정도에 따른 혈류변화와 감별진단(hyperemia test)하는 방법에 대하여 서술함 고찰: Subclavian Steal Syndrome이 의심되는 환자에서의 TCD를 통한 Subclavian artery나 Brachiocephalic artery의 협 착의 정도나 이상 유무를 감별 할 때는 꼭 Hyperemia test가 필요하고, 이를 진단적 검사로 이용하기 위해서는 각 검사실에서의 검사방법 규격화 및 단순화와 함께 체계화된 진단 기준 설정이 필요 할 것으로 생각 된다.

안정 동위원소 분리 기술 개발 현황

박현민,Park, Hyeon-Min 한국동위원소협회 2005 동위원소회보 Vol.20 No.2

혈액투석을 받는 만성신부전 환자들의 전정안반사 변화 및 청각과의 관계

박현민,조정석,박근환,이정구 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.9

용접형 판형열교환기 성능측정에 관한 실험적 연구

박현민,박창용 한국생산제조학회 2013 한국생산제조학회지 Vol.22 No.3

The heat transfer performance and pressure drop characteristics of brazed-plate heat exchangers with 20 and 30 plates were experimentally measured and analyzed in this study. The mass flow rates of the heat exchangers with 20 and 30 plates were fixed at 0.6 and 0.9 kg/s for the low temperature side, respectively. The mass flow rate for the high temperature side was controlled from 0.2 kg/s to 1.2 kg/s. The inlet temperatures for the high and low temperature sides were 10℃ and 7℃, respectively. The heat transfer characteristics were not influenced by the number of plates. The pressure drop at the heat exchanger with 30 plates was slightly higher than that with 20 plates. The values calculated from the correlations based on gasket plate heat exchangers were compared with the experimental results. It was found that the predicted Nusselt numbers for the gasket plate heat exchangers were about 5% to 20% lower than the measured Nusselt numbers for the brazed plate heat exchangers. However, a pressure drop comparison showed that the calculated pressure drops at the gasket plate heat exchangers were less than half of the measured pressure drops at the brazed plate heat exchangers.

퍼지 TOPSIS를 이용한 문화기술 육성 우선순위 평가

박현민 한국콘텐츠학회 2020 한국콘텐츠학회논문지 Vol.20 No.2

The development and application of cultural technologies(CT) are expected to lead to create various service scenarios and business models. Considering the wide range of application and extensibility of CT, it is necessary to design multidimensional evaluation methods for priority of the support of R&D budgets. The method should include the various evaluation criteria such as economic feasibility and user benefit of service made by a cultural technology. Our research addresses priority decision for fosterage of cultural technologies using fuzzy TOPSIS. Seven evaluation attributes are used to compare five specific technologies. Based on the results, service usefulness is the most important factor among the evaluation attributes. Also, technologies of computer graphics and UI/UX have higher priority than the others. We expect our research to help to provide guidelines for selection of promising cultural technologies which foster the culture and contents industry. 문화기술의 개발과 활용은 문화콘텐츠 분야에서 다양한 서비스 시나리오 생성과 비즈니스 모델 출현을 촉진할 것으로 예상된다. 문화기술의 다양한 적용 범위와 확장 가능성을 고려하면, R&D 예산 투자 우선순위 결정에 유용한 다면 평가 방법 설계가 필요하다. 평가에 포함되는 기준은 경제적인 측면의 실현 가능성, 기술로 파생되는 서비스의 이용자 편익 등을 골고루 반영하도록 정의되어야 한다. 본 연구에서는 퍼지 TOPSIS 방법을 이용하여 7개의 주요 평가속성을 바탕으로 5개의 핵심 문화기술을 비교 평가하였다. 평가 속성의 중요도 평가 결과에서 서비스 유용성 항목이 가장 높은 가중치를 갖는 것으로 확인되었다. 또한 핵심 문화기술에 대한 우선순위 평가 결과, 컴퓨터 그래픽스와 UI/UX 기술이 높은 순위로 판정되었다. 연구의 결과는 문화콘텐츠 산업의 성장을 이끌 수 있는 문화기술의 선별적인 투자 가이드라인을 제공할 수 있을 것으로 기대된다.