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진기창(Kichang Jin),박태호(Taeho Park),이형철(Hyeongcheol Lee),이종찬(Jongchang Lee),오창은 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
A wheel loader is frequently used in the construction site for uploading materials into trucks. Recently, the longitudinal wheel loader model is needed to analyze fuel consumption, fuel emission, and dynamics of wheel loader. Although a number of researches have focused on each component such as transmission, torque converter, and bucket, few researches have been done on the longitudinal wheel loader model. In this research, the wheel loader is analytically modeled and programmed by AMESim. The developed model contains engine, torque converter, transmission, differential, wheel, vehicle and external digging force. The longitudinal wheel loader model is validated by comparing the simulation results with the measured experimental results under the V-loading cycle. Therefore, the developed model well represents the actual basic function of each component and the power flow of the wheel loader.
하이브리드 굴삭기의 상위제어기 개발을 위한 MILS 환경 구축
진기창(Kichang Jin),박태호(Taeho Park),이지호(Jiho Lee),정유석(Yuseuk Jung),권영민(Youngmin Kwon),이형철(Hyoungcheol Lee) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
The hybrid excavator is designed and constructed by replacing the hydraulic components of the conventional hydraulic excavator with the electric components. The target hybrid excavator of this research is the compound hybrid excavator replacing only the swing part with the electric motor. This paper presents dynamic modeling of the compound hybrid excavator including an engine, a generator, ultra capacitors, hydraulic components and the swing part. The developed model is programmed with the AMESim and validated by the experimental data.
HEV 상용 버스 시스템 HILS 환경을 위한 MILS 개발
진기창(Kichang Jin),함형진(Hyoungjin Ham),박우성(Woosung Park),이형철(Hyeongcheol Lee) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The HEV commercial bus system is being developed recently as parallel hybrid system. This paper presents Model In The Loop Simulator of the HEV commercial bus system. The developed model is programmed with the AMESim. The function of the model and the control algorithm on HCU are validated by simulation.
종방향 차량모델을 이용한 하이브리드 휠로더의 연비 개선효과에 관한 연구
이성화(Sunghwa Lee),박태호(Taeho Park),진기창(Kichang Jin),이형철(Hyeongcheol Lee),권영민(YoungMin Kwon),이종찬(Jongchan Lee) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
This paper proposes the configuration of parallel hybrid wheel loader and power control algorithm. The target vehicle is composed of engine, battery, motor, torque converter, transmission, vhehicle, and wheel. The main control strategy of the target vehicle is to optimally distribute demanded power from the power sources by considering highest efficiency point of the engine and motor. Furthermore, when there is no engine load, the idle stop technology is applied. A hybrid wheel loader model and the proposed algorithm are developed by unsin AMEsim, verified through the simulation, and compared with the results of conventional wheel loader. Simulation results show fuel reduction and narrow swing of SOC, and thus demonstrate the feasibility and effectiveness of the proposed algorithm.
HILS를 이용한 HEV 버스용 HCU 검증에 대한 연구
박우성(Woosung Park),함형진(Hyeongjin Ham),진기창(Kichang Jin),김현섭(Hyunsub Kim),이형철(Hyeongcheol Lee) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The HEV commercial bus system is being developed recently as a parallel hybrid system. The objectives of HEV commercial bus system such as the performance of vehicle, fuel economy, and reduction of emission are dependent on the supervisory control unit, HCU. Therefore, test of control algorithm of HCU is the most important part in developing HEV systems. The test of control algorithm should be conducted on a vehicle system, not a separate component. The test could be possible by a chassis dynamometer but it requires much time and costs. To get over this difficulty, the paper presents Hardware In The Loop Simulator (HILS) of the HEV commercial bus system for testing HCU by using dSPACE® HIL hardware. HILS is the quick and effective test method for real-time instead of actual test and enables more flexible design scenarios for configuration of hybrid system. It is because HILS includes electrical emulation of sensors and actuators, acting as the interface between the plant model and the actual HCU. Therefore, in the process of developing embedded system, HILS guarantees the safety and the less development time and cost. In the past decades, a lot of researches with HILS are conducted on the dynamics projects such as brake, engine control unit, and turbocharger in automotive systems. In these literatures, however, very few of these can be found regarding test on the hybrid system with HILS. Therefore, this paper proposes a new system test bench by HILS for the comprehensive test on the parallel HEV commercial bus system.