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준중형 전기차용 Al 캘리퍼 설계 및 강성시험을 통한 성능 예측에 관한 연구
남찬혁(Chanhyuk Nam),박은지(Eunji Park),최성진(Sungjin Choi),엄재경(Jaekyung Eum),장규영(Gyuyoung Jang) 한국자동차공학회 2017 한국자동차공학회 부문종합 학술대회 Vol.2017 No.5
Recently various studies have been carried out to improve fuel efficiency by strengthening fuel efficiency regulations and developments of lightweight are being watched in the automobile industry. It is well known that reducing weight of unsprung mass is about 8 times more effective than saving weight of sprung mass on vehicle lightweight So, development of technology related to lightweight calipers is actively underway. In this paper establish process of caliper housing analysis using ABAQUS and test for inspection of simulation. then, design and analysis of developed Al caliper housing perform to satisfy the stiffness on a par with existing product.
남찬혁(Chanhyuk Nam),김기훈(Gihoon Kim),최동훈(Donghoon Choi),주형준(Hyungjun Ju) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Virtual Testing Laboratory(VTL) is a very efficient engineering process to minimize time and cost for developing a new vehicle. As computer’s software and hardware technologies are advanced so fast, it becomes critical to integrate VTL technology that could optimize the design of vehicle components and systems without heavy time consuming. In this research, the CAE models to predict the durability, safety, NVH, and R&H performance of vehicle components are established and carefully executed. And also, the analysis process for this simulation is automated by the commercial optimization software(PIAnO) to get the optimal results in the short period of time. For the optimization of component design, Design of Experiment(DOE) and Response Surface(RS) model are used to establish accurate Multi Discipline Optimization(MDO) model. Through this study, it is verified that the VTL technology with integrating MDO process offers optimized results to satisfy the required design performance criteria in weight reduction, durability, safety, NVH and R&H.
Model Based In-Wheel 구동시스템 VCU 및 검증체계 개발
남찬혁(Chanhyuk Nam),황윤형(Yunhyoung Hwang),김세현(Sehyun Kim),황진호(Jinho Hwang),정기윤(Kiyun Jeong),양인범(InBeom Jeong) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
As Eco-friendly, high-efficiency vehicles development is accelerating, new electric drive system has been required. In the future the cooperative control technology of engine and in-wheel drive system will be expect to as a critical elements of future eco-friendly & smart vehicle technology. In this regard, VCU(Vehicle Control Unit) was developed for the Hybrid vehicle which is consist of engine (front wheels) and in-wheel (rear wheels) driving system was developed. Also Test-bench for cooperative control and development test environments was developed. Through this, an innovative development environment which is for the VCU control logic development and system verification of In-Wheel drive system was built up.
모델 기반 In-Wheel 구동시스템 VCU 성능검증 및 평가
남찬혁(Chanhyuk Nam),황윤형(Yunhyoung Hwang),김세현(Sehyn Kim),정기윤(Kiyun Jeong),양인범(InBeom Yang),서재형(JaeHyung Seo) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
Recent automotive industry, high-efficiency, environmental friendly green-car technology is emerging as a critical technology elements. In this regard, the In-wheel drive system and it"s control technology is getting a lot of attention in the automotive industry as a next-generation vehicle drive system. In this study, a vehicle for the simulation model was developed. In-Wheel motor system control logic was applied to the simulation results. Testbed which is equipped with a In-Wheel motor system(rear wheels) the stability of the system and drive performance were verified. Simulation and the test results were compared, to verify the integrity of the simulation model.